chore(plugins): integrate current v2 and SDK readiness fixture

feat(plugins): check, update, and reload plugins in the TUI
2026-09-23 00:57:38 +00:00 · 2026-08-28 00:10:34 -04:00 · 2026-08-28 00:05:37 -04:00
3557 changed files with 121076 additions and 242203 deletions
@@ -1,5 +0,0 @@
---
-"@opencode/core": patch
---
-
-Correct directory page headings when the read offset is zero.
@@ -2,4 +2,3 @@ packages/core/migration/**/snapshot.json linguist-generated
 packages/core/src/database/migration.gen.ts linguist-generated
 packages/core/src/models-dev/snapshot.txt linguist-generated
 packages/core/src/**/*.txt text eol=lf
-packages/httpapi-codegen/test/generated/*.ts text eol=lf
@@ -1,34 +0,0 @@
-name: deploy-files
-
-on:
-  push:
-    branches:
-      - dev
-      - v2
-  workflow_dispatch:
-
-concurrency:
-  group: deploy-files-${{ github.ref_name }}
-  cancel-in-progress: false
-
-permissions:
-  contents: read
-
-jobs:
-  deploy:
-    if: github.repository == 'anomalyco/opencode' && (github.ref_name == 'dev' || github.ref_name == 'v2')
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
-
-      - uses: ./.github/actions/setup-bun
-
-      - name: Typecheck
-        working-directory: services/files
-        run: bun typecheck
-
-      - name: Deploy
-        working-directory: services/files
-        run: bun run deploy --env ${{ github.ref_name == 'v2' && 'production' || 'dev' }}
-        env:
-          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
@@ -24,13 +24,13 @@ jobs:
      - uses: ./.github/actions/setup-bun

      - name: Build
-        working-directory: services/www
+        working-directory: packages/www
        run: bun run build
        env:
          CLOUDFLARE_ENV: ${{ github.ref_name == 'v2' && 'production' || 'dev' }}

      - name: Deploy
-        working-directory: services/www
+        working-directory: packages/www
        run: bun run deploy
        env:
          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
@@ -5,7 +5,6 @@ on:
    branches:
      - dev
      - production
-      - beta
  workflow_dispatch:

 concurrency: ${{ github.workflow }}-${{ github.ref }}
@@ -16,7 +15,7 @@ permissions:

 jobs:
  deploy:
-    if: github.repository == 'anomalyco/opencode' && (github.ref_name == 'dev' || github.ref_name == 'production' || github.ref_name == 'beta')
+    if: github.repository == 'anomalyco/opencode' && (github.ref_name == 'dev' || github.ref_name == 'production')
    runs-on: ubuntu-latest
    environment: ${{ github.ref_name }}
    steps:
@@ -29,7 +28,6 @@ jobs:
          node-version: "24"

      - uses: aws-actions/configure-aws-credentials@7474bc4690e29a8392af63c5b98e7449536d5c3a # v4.3.1
-        if: github.ref_name != 'beta'
        with:
          role-to-assume: ${{ vars.AWS_DEPLOY_ROLE_ARN }}
          role-session-name: opencode-${{ github.run_id }}
@@ -11,7 +11,6 @@ on:
      - "bun.lock"
      - "package.json"
      - "packages/*/package.json"
-      - "services/*/package.json"
      - "flake.lock"
      - "nix/node_modules.nix"
      - "nix/scripts/**"
@@ -25,7 +25,7 @@ on:
        required: false
        type: string

-concurrency: ${{ github.workflow }}-${{ github.ref }}-${{ (github.ref_name == 'v2' && (inputs.version || inputs.bump) && 'release') || inputs.version || inputs.bump }}
+concurrency: ${{ github.workflow }}-${{ github.ref }}-${{ inputs.version || inputs.bump }}

 permissions:
  id-token: write
@@ -33,7 +33,7 @@ permissions:
  packages: write

 env:
-  OPENCODE_CHANNEL: ${{ (github.ref_name == 'v2' && !inputs.bump && !inputs.version && 'dev') || '' }}
+  OPENCODE_CHANNEL: ${{ (github.ref_name == 'v2' && 'dev') || '' }}

 jobs:
  version:
@@ -47,8 +47,8 @@ jobs:
      - uses: ./.github/actions/setup-bun

      - name: Deploy update service
-        if: github.ref_name == 'v2'
-        working-directory: services/update
+        if: github.ref_name == 'v2' || github.ref_name == 'beta'
+        working-directory: packages/updates
        run: bun run deploy
        env:
          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
@@ -91,7 +91,7 @@ jobs:

      - uses: ./.github/actions/setup-bun
        with:
-          bun-version: 1.4.2
+          bun-version: 1.4.0

      - name: Setup git committer
        id: committer
@@ -113,7 +113,7 @@ jobs:
        id: build
        run: ./packages/cli/script/build.ts ${{ (github.ref_name == 'beta' && '--sourcemaps') || '' }}
        env:
-          BUN_COMPILE_RELEASE: bun-v1.4.2
+          BUN_COMPILE_RELEASE: bun-v1.4.0
          OPENCODE_VERSION: ${{ needs.version.outputs.version }}
          OPENCODE_RELEASE: ${{ needs.version.outputs.release }}
          GH_REPO: ${{ needs.version.outputs.repo }}
@@ -168,7 +168,7 @@ jobs:
          fi

          found=0
-          for file in packages/cli/dist/cli-darwin-*/bin/opencode; do
+          for file in packages/cli/dist/cli-darwin-*/bin/opencode2; do
            if [ ! -f "$file" ]; then
              continue
            fi
@@ -191,7 +191,7 @@ jobs:

      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
-          name: opencode-preview-cli-macos
+          name: opencode-preview-cli
          path: packages/cli/dist/cli-*
          if-no-files-found: error

@@ -199,7 +199,7 @@ jobs:
    needs: version
    runs-on: blacksmith-4vcpu-ubuntu-2404
    timeout-minutes: 30
-    if: github.repository == 'anomalyco/opencode' && !(github.ref_name == 'v2' && (inputs.bump || inputs.version))
+    if: github.repository == 'anomalyco/opencode'
    steps:
      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0

@@ -221,7 +221,7 @@ jobs:
    needs:
      - version
      - build-node-app-archive
-    if: github.repository == 'anomalyco/opencode' && !(github.ref_name == 'v2' && (inputs.bump || inputs.version))
+    if: github.repository == 'anomalyco/opencode'
    strategy:
      fail-fast: false
      matrix:
@@ -276,9 +276,10 @@ jobs:

  sign-cli-windows:
    needs:
-      - sign-cli-macos
+      - build-cli
+      - version
    runs-on: blacksmith-4vcpu-windows-2025
-    if: github.repository == 'anomalyco/opencode' && (github.ref_name == 'v2' || github.ref_name == 'beta')
+    if: github.repository == 'anomalyco/opencode' && github.ref_name != 'v2' && github.ref_name != 'beta'
    env:
      AZURE_CLIENT_ID: ${{ secrets.AZURE_CLIENT_ID }}
      AZURE_TENANT_ID: ${{ secrets.AZURE_TENANT_ID }}
@@ -291,8 +292,15 @@ jobs:

      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
        with:
-          name: opencode-preview-cli-macos
-          path: packages/cli/dist
+          name: opencode-cli-windows
+          path: packages/opencode/dist
+
+      - name: Setup git committer
+        id: committer
+        uses: ./.github/actions/setup-git-committer
+        with:
+          opencode-app-id: ${{ vars.OPENCODE_APP_ID }}
+          opencode-app-secret: ${{ secrets.OPENCODE_APP_SECRET }}

      - name: Azure login
        uses: azure/login@a457da9ea143d694b1b9c7c869ebb04ebe844ef5 # v2.3.0
@@ -307,9 +315,9 @@ jobs:
          signing-account-name: ${{ env.AZURE_TRUSTED_SIGNING_ACCOUNT_NAME }}
          certificate-profile-name: ${{ env.AZURE_TRUSTED_SIGNING_CERTIFICATE_PROFILE }}
          files: |
-            ${{ github.workspace }}\packages\cli\dist\cli-windows-arm64\bin\opencode.exe
-            ${{ github.workspace }}\packages\cli\dist\cli-windows-x64\bin\opencode.exe
-            ${{ github.workspace }}\packages\cli\dist\cli-windows-x64-baseline\bin\opencode.exe
+            ${{ github.workspace }}\packages\opencode\dist\opencode-windows-arm64\bin\opencode.exe
+            ${{ github.workspace }}\packages\opencode\dist\opencode-windows-x64\bin\opencode.exe
+            ${{ github.workspace }}\packages\opencode\dist\opencode-windows-x64-baseline\bin\opencode.exe
          exclude-environment-credential: true
          exclude-workload-identity-credential: true
          exclude-managed-identity-credential: true
@@ -325,9 +333,9 @@ jobs:
        shell: pwsh
        run: |
          $files = @(
-            "${{ github.workspace }}\packages\cli\dist\cli-windows-arm64\bin\opencode.exe",
-            "${{ github.workspace }}\packages\cli\dist\cli-windows-x64\bin\opencode.exe",
-            "${{ github.workspace }}\packages\cli\dist\cli-windows-x64-baseline\bin\opencode.exe"
+            "${{ github.workspace }}\packages\opencode\dist\opencode-windows-arm64\bin\opencode.exe",
+            "${{ github.workspace }}\packages\opencode\dist\opencode-windows-x64\bin\opencode.exe",
+            "${{ github.workspace }}\packages\opencode\dist\opencode-windows-x64-baseline\bin\opencode.exe"
          )

          foreach ($file in $files) {
@@ -337,17 +345,40 @@ jobs:
            }
          }

+      - name: Repack Windows CLI archives
+        working-directory: packages/opencode/dist
+        shell: pwsh
+        run: |
+          Compress-Archive -Path "opencode-windows-arm64\bin\*" -DestinationPath "opencode-windows-arm64.zip" -Force
+          Compress-Archive -Path "opencode-windows-x64\bin\*" -DestinationPath "opencode-windows-x64.zip" -Force
+          Compress-Archive -Path "opencode-windows-x64-baseline\bin\*" -DestinationPath "opencode-windows-x64-baseline.zip" -Force
+
+      - name: Upload signed Windows CLI release assets
+        if: needs.version.outputs.release != ''
+        shell: pwsh
+        env:
+          GH_TOKEN: ${{ steps.committer.outputs.token }}
+        run: |
+          gh release upload "v${{ needs.version.outputs.version }}" `
+            "${{ github.workspace }}\packages\opencode\dist\opencode-windows-arm64.zip" `
+            "${{ github.workspace }}\packages\opencode\dist\opencode-windows-x64.zip" `
+            "${{ github.workspace }}\packages\opencode\dist\opencode-windows-x64-baseline.zip" `
+            --clobber `
+            --repo "${{ needs.version.outputs.repo }}"
+
      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
-          name: opencode-preview-cli
-          path: packages/cli/dist/cli-*
-          if-no-files-found: error
+          name: opencode-cli-signed-windows
+          path: |
+            packages/opencode/dist/opencode-windows-arm64
+            packages/opencode/dist/opencode-windows-x64
+            packages/opencode/dist/opencode-windows-x64-baseline

  build-electron:
    needs:
      - version
-      - sign-cli-windows
-    if: github.repository == 'anomalyco/opencode' && (github.ref_name != 'v2' || needs.version.outputs.release != '')
+      - sign-cli-macos
+    if: github.repository == 'anomalyco/opencode' && github.ref_name != 'v2'
    continue-on-error: false
    env:
      AZURE_CLIENT_ID: ${{ secrets.AZURE_CLIENT_ID }}
@@ -386,6 +417,7 @@ jobs:
      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0

      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
+        if: github.ref_name == 'beta'
        with:
          name: opencode-preview-cli
          path: packages/cli/dist
@@ -448,7 +480,7 @@ jobs:
          OPENCODE_VERSION: ${{ needs.version.outputs.version }}
          OPENCODE_CHANNEL: ${{ (github.ref_name == 'beta' && 'beta') || 'prod' }}
          OPENCODE_CLI_TARGET: ${{ matrix.settings.target }}
-          OPENCODE_CLI_DIST: ${{ github.workspace }}/packages/cli/dist
+          OPENCODE_CLI_DIST: ${{ (github.ref_name == 'beta' && format('{0}/packages/cli/dist', github.workspace)) || '' }}

      - name: Build
        run: bun run build
@@ -639,6 +671,19 @@ jobs:
          git config --global user.name "opencode"
          ssh-keyscan -H aur.archlinux.org >> ~/.ssh/known_hosts || true

+      - name: Upload desktop release assets
+        if: needs.version.outputs.release
+        env:
+          GH_TOKEN: ${{ steps.committer.outputs.token }}
+        run: |
+          shopt -s nullglob
+          files=(/tmp/desktop/*.{exe,blockmap,dmg,zip,AppImage,deb,rpm} /tmp/desktop/*.app.tar.gz)
+          if (( ${#files[@]} == 0 )); then
+            echo "No desktop release assets found"
+            exit 1
+          fi
+          gh release upload "v${{ needs.version.outputs.version }}" "${files[@]}" --clobber --repo "${{ needs.version.outputs.repo }}"
+
      - run: ./script/publish.ts
        env:
          OPENCODE_VERSION: ${{ needs.version.outputs.version }}
@@ -650,6 +695,3 @@ jobs:
          LATEST_YML_DIR: /tmp/latest-yml
          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
-          OPENCODE_DESKTOP_DIST: /tmp/desktop
-          CLOUDFLARE_ACCOUNT_ID: 15d29c8639fd3733b1b5486a2acfd968
-          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
@@ -49,7 +49,7 @@ jobs:
            echo "app=true" >> "$GITHUB_OUTPUT"
            exit 0
          fi
-          bun x turbo@2.10.2 ls --affected --filter=@opencode/app --output=json > affected.json
+          bun x turbo@2.10.2 ls --affected --filter=@opencode-ai/app --output=json > affected.json
          bun -e 'const result = await Bun.file("affected.json").json(); console.log(`app=${result.packages.count > 0}`)' >> "$GITHUB_OUTPUT"

  unit:
@@ -112,12 +112,11 @@ jobs:
      - name: Run unit tests
        timeout-minutes: 20
        run: |
-          # The runners have four vCPUs, and each Bun test process performs its own concurrent work.
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
-            GITHUB_ACTIONS=false bun turbo test --concurrency=3
+            GITHUB_ACTIONS=false bun turbo test
            exit 0
          fi
-          GITHUB_ACTIONS=false bun turbo test --affected --concurrency=3
+          GITHUB_ACTIONS=false bun turbo test --affected
        env:
          OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER: ${{ runner.os == 'Windows' && 'true' || 'false' }}
          TURBO_SCM_BASE: ${{ github.event_name == 'pull_request' && format('{0}^1', github.sha) || github.event.before }}
@@ -133,10 +132,10 @@ jobs:
        timeout-minutes: 15
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
-            bun turbo verify:package --filter=@opencode/sdk
+            bun turbo verify:package --filter=@opencode-ai/sdk
            exit 0
          fi
-          bun turbo verify:package --affected --filter=@opencode/sdk
+          bun turbo verify:package --affected --filter=@opencode-ai/sdk
        env:
          TURBO_SCM_BASE: ${{ github.event_name == 'pull_request' && format('{0}^1', github.sha) || github.event.before }}
          TURBO_SCM_HEAD: ${{ github.sha }}
@@ -174,7 +173,7 @@ jobs:

      - name: Check generated documentation
        if: runner.os == 'Linux'
-        working-directory: services/www
+        working-directory: packages/www
        run: bun run check:generated

  e2e:
@@ -1,4 +1,4 @@
-name: check
+name: typecheck

 on:
  push:
@@ -8,8 +8,7 @@ on:
  workflow_dispatch:

 jobs:
-  check:
-    name: typecheck
+  typecheck:
    runs-on: blacksmith-4vcpu-ubuntu-2404
    steps:
      - name: Checkout repository
@@ -18,5 +17,5 @@ jobs:
      - name: Setup Bun
        uses: ./.github/actions/setup-bun

-      - name: Run checks
-        run: bun run check
+      - name: Run typecheck
+        run: bun typecheck
@@ -32,7 +32,6 @@ target
 # Local dev files
 opencode-dev
 UPCOMING_CHANGELOG.md
-RELEASE_REVIEW.md
 logs/
 *.bun-build
 tsconfig.tsbuildinfo
@@ -17,4 +17,4 @@ if (process.versions.bun !== expectedBunVersion) {
  console.warn(`Warning: Bun version ${process.versions.bun} differs from expected ${expectedBunVersion}`);
 }
 '
-bun run check
+bun typecheck
@@ -1,5 +1,5 @@
 /// <reference path="../env.d.ts" />
-import { tool } from "@opencode/plugin"
+import { tool } from "@opencode-ai/plugin"
 async function githubFetch(endpoint: string, options: RequestInit = {}) {
  const response = await fetch(`https://api.github.com${endpoint}`, {
    ...options,
@@ -1,5 +1,5 @@
 /// <reference path="../env.d.ts" />
-import { tool } from "@opencode/plugin"
+import { tool } from "@opencode-ai/plugin"

 const TEAM = {
  tui: ["kommander", "simonklee"],
@@ -1,22 +1,45 @@
 {
  "$schema": "https://raw.githubusercontent.com/nicolo-ribaudo/oxc-project.github.io/refs/heads/json-schema/src/public/.oxlintrc.schema.json",
+  "options": {
+    "typeAware": true
+  },
  "categories": {
-    "correctness": "off",
-    "suspicious": "off",
-    "pedantic": "off",
-    "perf": "off",
-    "style": "off",
-    "restriction": "off",
-    "nursery": "off"
+    "suspicious": "warn"
  },
  "rules": {
-    "no-restricted-globals": [
-      "error",
-      {
-        "name": "Reflect",
-        "message": "Use typed property access or direct invocation. Suppress this rule only for genuine reflection."
-      }
-    ]
+    "typescript/no-base-to-string": "warn",
+    // Effect uses `function*` with Effect.gen/Effect.fnUntraced that don't always yield
+    "require-yield": "off",
+    // SolidJS uses `let ref: T | undefined` for JSX ref bindings assigned at runtime
+    "no-unassigned-vars": "off",
+    // SolidJS tracks reactive deps by reading properties inside createEffect
+    "no-unused-expressions": "off",
+    // Intentional control char matching (ANSI escapes, null byte sanitization)
+    "no-control-regex": "off",
+    // SST and plugin tools require triple-slash references
+    "triple-slash-reference": "off",
+
+    // Suspicious category: suppress noisy rules
+    // Effect's nested function* closures inherently shadow outer scope
+    "no-shadow": "off",
+    // Namespace-heavy codebase makes this too noisy
+    "unicorn/consistent-function-scoping": "off",
+    // Opinionated — .sort()/.reverse() mutation is fine in this codebase
+    "unicorn/no-array-sort": "off",
+    "unicorn/no-array-reverse": "off",
+    // Not relevant — this isn't a DOM event handler codebase
+    "unicorn/prefer-add-event-listener": "off",
+    // Bundler handles module resolution
+    "unicorn/require-module-specifiers": "off",
+    // postMessage target origin not relevant for this codebase
+    "unicorn/require-post-message-target-origin": "off",
+    // Side-effectful constructors are intentional in some places
+    "no-new": "off",
+
+    // Type-aware: catch unhandled promises
+    "typescript/no-floating-promises": "warn",
+    // Warn when spreading non-plain objects (Headers, class instances, etc.)
+    "typescript/no-misused-spread": "warn"
  },
  "ignorePatterns": ["**/node_modules", "**/dist", "**/.build", "**/.sst", "**/*.d.ts", "**/sdk.gen.ts"]
 }
@@ -1,16 +1,15 @@
 - After changing the public Protocol or Server `HttpApi`, run `bun run generate` from `packages/client`. Do not edit generated client files directly.
 - Keep runtime dependencies directed from Schema to Core and Protocol, then from Core and Protocol to Server. Client runtime code may depend on Schema and Protocol but never Core or Server; `sdk` composes Client, Core, and Server.
 - Current implementation changes belong in `packages/core`, `packages/cli`, `packages/server`, `packages/protocol`, `packages/schema`, and related generated client surfaces when required.
- This repository does not use Changesets. Do not add `.changeset` files; follow the existing release workflow instead.
 - The default branch in this repo is `v2`.
- Default new branches and worktrees to `v2`, or `origin/v2` when the local `v2` ref is unavailable, and default pull requests to target `v2`. Use another base or target branch when the requester explicitly instructs it.
+- Base all new branches and worktrees on `v2`, or `origin/v2` when the local `v2` ref is unavailable. Do not base them on `dev`.
 - Local `main` ref may not exist; use `v2` or `origin/v2` for diffs.

 ## Live V2 TUI Testing

- Run `bun run dev:live` from a development worktree to test its TUI against the currently elected `opencode` background server and live sessions.
+- Run `bun run dev:live` from a development worktree to test its TUI against the currently elected `opencode2` background server and live sessions.
 - Pass a directory after the script when needed, for example `bun run dev:live /path/to/project`.
- The script discovers the server with `opencode service status`, injects its private local credential from `opencode service get password`, and uses the `dev` TUI storage channel so tabs and other client-local state match the installed client.
+- The script discovers the server with `opencode2 service status`, injects its private local credential from `opencode2 service get password`, and uses the `dev` TUI storage channel so tabs and other client-local state match the installed client.
 - Prefer `dev:live` over plain `bun run dev` for this workflow. An implicit managed-service connection may replace the live server when the worktree client version differs; explicit `--server` warns and continues without replacing it.

 ## V2 TUI Stories
@@ -46,7 +45,6 @@ Examples: `fix(tui): simplify thinking toggle styling`, `docs: update contributi
 ### General Principles

 - Keep things in one function unless composable or reusable
- Validate unknown values once at the boundary that owns them. Pass typed values inward instead of repeating `typeof value === "object"` and property-existence checks. Do not defensively revalidate values already guaranteed by a schema, constructor, or internal type.
 - Do not extract single-use helpers preemptively. Inline the logic at the call site unless the helper is reused, hides a genuinely complex boundary, or has a clear independent name that improves the caller.
 - Before adding complexity for a speculative or vanishingly unlikely race or security edge case, explain the concrete failure mode, likelihood, and complexity cost to the user and get their buy-in. Do not silently expand scope for theoretical robustness.
 - Avoid `try`/`catch` where possible
@@ -84,9 +82,9 @@ const { a, b } = obj
 ### Imports

 - Never alias imports. Do not use `import { foo as bar } from "..."` or renamed imports like `resolve as pathResolve`.
- Never use type-position `import("...")` references such as `Schema.declare<import("@opencode/plugin/effect/plugin").Plugin["effect"]>`. Only when two imports genuinely collide on a name and no other option exists, an aliased type import (`import type { Plugin as PluginDefinition } from "..."`) is permitted as a last resort — still strongly preferred not to.
+- Never use type-position `import("...")` references such as `Schema.declare<import("@opencode-ai/plugin/effect/plugin").Plugin["effect"]>`. Only when two imports genuinely collide on a name and no other option exists, an aliased type import (`import type { Plugin as PluginDefinition } from "..."`) is permitted as a last resort — still strongly preferred not to.
 - Never use star imports. Do not use `import * as Foo from "..."` or `import type * as Foo from "..."`.
- If a namespace-style value is needed, import the module's own exported namespace by name, for example `import { Project } from "@opencode/core/project"`, then reference `Project.ID`.
+- If a namespace-style value is needed, import the module's own exported namespace by name, for example `import { Project } from "@opencode-ai/core/project"`, then reference `Project.ID`.
 - Prefer dynamic imports for heavy modules that are only needed in selected code paths, especially in startup-sensitive entrypoints. Destructure dynamic import bindings near the top of the narrowest scope that needs them so they read like normal imports. Avoid inline chains such as `await import("./module").then((mod) => mod.value())` or `(await import("./module")).value()`. Keep branch-specific imports inside the branch that needs them to preserve lazy loading.

 ### Variables
@@ -170,10 +168,9 @@ const table = sqliteTable("session", {
 - Test actual implementation, do not duplicate logic into tests
 - Tests cannot run from repo root (guard: `do-not-run-tests-from-root`); run from package directories such as `packages/core`.

-## Checks
+## Type Checking

- Run `bun run check` from the repository root as the canonical full lint and type-check verification.
- During focused iteration, run `bun typecheck` from the affected package directory (for example, `packages/core`). Never run `tsc` directly.
+- Always run `bun typecheck` from package directories (for example, `packages/core`), never `tsc` directly.

 ## V2 Session Core

@@ -184,8 +181,7 @@ const table = sqliteTable("session", {
 - Keep `SessionRunner`, model resolution, tool registry, permissions, and filesystem Location-scoped. Omitted `Location.workspaceID` means implicit-local placement; explicit workspace identity remains reserved for future placement semantics.
 - Preserve one explicit `llm.stream(request)` call per Physical Attempt and reload projected history before durable continuation. A logical Step may use generic pre-output retries, one full-context retry after continuation rejection, incomplete-stream continuation, or one overflow-compaction rebuild. Generic retries retain the logical step number and do not consume another agent-step allowance. Do not delegate orchestration to an in-memory tool loop.
 - Keep local Session drains process-local until clustering is implemented. `SessionRunCoordinator` joins explicit same-Session resumes, coalesces prompt wakeups, and allows different Sessions to run concurrently. A write-ahead execution claim marks a process-local busy period for restart recovery: terminal completion, failure, or user interruption releases it, while shutdown interruption and process death preserve it. Startup recovery resumes claimed top-level Sessions with durable per-execution attempt accounting. The claim is a recovery marker, not clustered ownership, fencing, or an exactly-once guarantee.
- Keep native compaction mechanisms out of `SessionCompaction`. Plugins register `native` strategies through the `SessionCompaction` editor that turn a prepared request into a replacement window (the built-in `NativeCompactionPlugin` handles `@opencode/ai` compaction operations); later registrations win. Core owns the provider-mode decision, route provenance, the retry policy, overflow recovery, interruption, usage accounting, and checkpoint persistence.
- Keep delivery vocabulary explicit. Prompts steer by default. At safe step boundaries, steered compaction takes priority up to the first steered move control; other steers retain enqueue order. At an idle boundary, steers take priority; otherwise exactly one queued item delivers before the runner reevaluates continuation. Inbox items may be cancelled or changed between queue and steer before delivery. Promoting new user input resets the selected agent's step allowance; a batch of steers resets it once.
+- Keep delivery vocabulary explicit. Prompts steer by default. Steers deliver in enqueue order at safe step boundaries, stopping before compaction or move control items. At an idle boundary, steers take priority; otherwise exactly one queued item delivers before the runner reevaluates continuation. Inbox items may be cancelled or changed between queue and steer before delivery. Promoting new user input resets the selected agent's step allowance; a batch of steers resets it once.
 - One step is one logical LLM call; its durable record covers only the model-visible span. Do not write "provider turn", and do not use bare "turn" for a single call: "turn" is reserved for the future assistant-turn unit containing all steps from prompt promotion until the session would go idle.
 - Keep event replay ownership separate from clustered Session execution ownership.
 - Keep the Instructions algebra and built-ins in `src/instructions`; keep instruction producers with their observed domains, and keep Session History selection plus `InstructionState` and `InstructionEntry` persistence Session-owned. `InstructionDiscovery` observes ambient global and upward-project instructions. The runner composes built-ins, discovery, guidance, and entries explicitly in `loadInstructions`; there is no instruction registry.
@@ -1,279 +0,0 @@
-# V2 HTTP API audit checklist
-
-**Source:** `packages/protocol/openapi.json`  
-**Current endpoint count:** 139
-**Last regenerated:** 2026-09-13
-
-## How to use this checklist
-
-Review endpoints in document order. For each endpoint, select one disposition and capture rationale or follow-up work in Notes. Mark **Reviewed** only after the disposition is agreed.
-
-### Review criteria
-
- Resource and operation naming
- HTTP method and idempotency
- Request parameters and location scope
- Response shape and error taxonomy
- Authentication and authorization
- Current production consumers
- Stability level: public, experimental, or internal
- Whether the generated client API is intuitive
-
-### Disposition legend
-
- **Keep:** ship unchanged as a supported V2 API
- **Change:** retain after a defined contract change
- **Remove:** exclude from the official V2 API
- **Experimental-only:** retain outside the stable API commitment
-
-## Progress
-
- [x] Group 1: Foundation and placement (4)
- [x] Group 2: Configuration and capability catalogs (16)
- [x] Group 3: Credentials, integrations, MCP, and web search (22)
- [x] Group 4: Session lifecycle (12)
- [x] Group 5: Session execution and inputs (11)
- [x] Group 6: Session history and recovery (13)
- [x] Group 7: Inbox, permissions, and forms (19)
- [x] Group 8: Filesystem, worktrees, and VCS (12)
- [x] Group 9: PTYs, persistent terminals, and shells (24)
- [x] Group 10: Events, RPC, and experimental operations (6)
-
-## Resolved during audit
-
-### [x] `POST /api/plugin/await-activation`
-
- **Decision:** Remove
- **Notes:** Activation timing is an internal server concern. Catalog reads remain non-blocking.
-
-### [x] Location response wrappers
-
- **Decision:** Reduce generic endpoint response locations to `{ directory }`.
- **Notes:** Full project metadata remains available from `GET /api/location`; no consumers used it from wrapped responses.
-
-### [x] `GET /api/health` and `GET /api/server`
-
- **Decision:** Merge and rename
- **Replacement:** `GET /api/info` with operation ID `server.info`.
- **Notes:** Returns `version`, `pid`, and connection `urls`; readiness is conveyed by HTTP status.
-
-### [x] `GET /api/project/current`
-
- **Decision:** Remove
- **Replacement:** `GET /api/location`, using `project` from the response.
- **Notes:** The endpoint duplicated `Location.Info.project`; production callers were migrated.
-
-### [x] `POST /api/workspace` and `DELETE /api/workspace/{workspaceID}`
-
- **Decision:** Remove
- **Notes:** Provider-backed workspaces are not part of the V2 HTTP contract and can be introduced later. Core and the embedded SDK retain internal workspace support.
-
-## Group 1: Foundation and placement
-
-**Endpoints:** 4
-
-| Done | Method | Path | Operation ID | Decision | Notes |
-|---|---|---|---|---|---|
-| [x] 001–002 | `GET` | `/api/info` | `server.info` | Keep | Replaces the former health and server endpoints. |
-| [x] 003 | `GET` | `/api/location` | `location.get` | Keep | Workspace selectors and response fields removed until workspace support ships. |
-| [x] 004 | `GET` | `/api/project` | `project.list` | Keep | Removed unused `time.initialized`; the database column remains for migration data. |
-| [x] 005 | `PATCH` | `/api/project/{projectID}` | `project.update` | Keep | Request and response accepted as-is. |
-
-## Group 2: Configuration and capability catalogs
-
-**Endpoints:** 16
-
-| Done | Method | Path | Operation ID | Decision | Notes |
-|---|---|---|---|---|---|
-| [x] 008 | `GET` | `/api/agent` | `agent.list` | Keep | Request and response accepted as-is. |
-| [x] 009 | `GET` | `/api/agent/{agentID}` | `agent.get` | Keep | Request, response, and not-found error accepted as-is. |
-| [x] 010 | `GET` | `/api/plugin` | `plugin.list` | Keep | Request and response accepted as-is. |
-| [x] 012 | `POST` | `/api/plugin/check` | `plugin.check` | Keep | Request and response accepted as-is. |
-| [x] 013 | `POST` | `/api/plugin/update` | `plugin.update` | Keep | Request and errors accepted as-is. |
-| [x] 014 | `GET` | `/api/model` | `model.list` | Keep | Request and response accepted as-is. |
-| [x] 015 | `GET` | `/api/model/default` | `model.default` | Keep | Request and nullable response accepted as-is. |
-| [x] 016 | `GET` | `/api/provider` | `provider.list` | Keep | Request and response accepted as-is. |
-| [x] 017 | `GET` | `/api/provider/{providerID}` | `provider.get` | Keep | Request, response, and not-found error accepted as-is. |
-| [x] 018 | `GET` | `/api/command` | `command.list` | Keep | Request and response accepted as-is. |
-| [x] 019 | `GET` | `/api/skill` | `skill.list` | Keep | Renamed `location` to `path`; removed the skill-specific `slash` flag and slash-command behavior. |
-| [x] 020 | `GET` | `/api/reference` | `reference.list` | Keep | Removed duplicate `description` and `hidden` fields from nested `source`. |
-| [x] 021 | `GET` | `/api/config` | `config.get` | Keep | Compatibility entries removed; response now contains only documents and OpenCode directories. |
-| [x] 022 | `GET` | `/api/config/preferences` | `config.preferences` | Remove | Redundant special projection of global config. |
-| [x] 023 | `PATCH` | `/api/config/preferences` | `config.updatePreferences` | Remove | Redundant field-specific config mutation API. |
-| [x] 024 | `GET` | `/api/config/shell` | `config.shells` | Keep | Required by the server Terminal shell setting. |
-| [x] 024a | `PATCH` | `/api/experimental/config` | `experimental.config.update` | Change | Experimental global config mutation; initially accepts only `shell`. |
-
-## Group 3: Credentials, integrations, MCP, and web search
-
-**Endpoints:** 22
-
-| Done | Method | Path | Operation ID | Decision | Notes |
-|---|---|---|---|---|---|
-| [x] 025 | `GET` | `/api/integration` | `integration.list` | Keep | Full integration inventory is consumed by authentication and integration-selection clients. |
-| [x] 026 | `GET` | `/api/integration/{integrationID}` | `integration.get` | Change | Missing integration now returns typed `404` instead of optional data. |
-| [x] 027 | `POST` | `/api/experimental/integration/wellknown` | `experimental.integration.wellknown.add` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 028 | `POST` | `/api/integration/{integrationID}/connect/key` | `integration.connect.key` | Change | Missing integration returns typed `404`; key form answers retained. |
-| [x] 029 | `POST` | `/api/integration/{integrationID}/connect/oauth` | `integration.oauth.connect` | Keep | OAuth connection start contract retained. |
-| [x] 030 | `GET` | `/api/integration/{integrationID}/connect/oauth/{attemptID}` | `integration.oauth.status` | Change | Missing integration or OAuth attempt returns typed `404`. |
-| [x] 031 | `DELETE` | `/api/integration/{integrationID}/connect/oauth/{attemptID}` | `integration.oauth.cancel` | Keep | Idempotent cancellation remains a no-op for unavailable or terminal attempts. |
-| [x] 032 | `POST` | `/api/integration/{integrationID}/connect/oauth/{attemptID}/complete` | `integration.oauth.complete` | Change | Missing integration or OAuth attempt returns typed `404`; code remains mode-dependent. |
-| [x] 033 | `POST` | `/api/integration/{integrationID}/connect/command` | `integration.command.connect` | Change | Missing integration or command method returns typed `404`. |
-| [x] 034 | `GET` | `/api/integration/{integrationID}/connect/command/{attemptID}` | `integration.command.status` | Change | Missing integration or command attempt returns typed `404`. |
-| [x] 035 | `DELETE` | `/api/integration/{integrationID}/connect/command/{attemptID}` | `integration.command.cancel` | Keep | Idempotent cancellation remains a no-op for unavailable or terminal attempts. |
-| [x] 036 | `GET` | `/api/mcp` | `mcp.list` | Keep | MCP inventory and connection status retained. |
-| [x] 037 | `PUT` | `/api/experimental/mcp/{server}` | `experimental.mcp.add` | Experimental-only | Runtime-only MCP override; does not persist configuration. |
-| [x] 038 | `DELETE` | `/api/experimental/mcp/{server}` | `experimental.mcp.remove` | Experimental-only | Runtime removal override; missing server returns `404`. |
-| [x] 039 | `POST` | `/api/experimental/mcp/{server}/connect` | `experimental.mcp.connect` | Experimental-only | Runtime connection override retained outside the stable API. |
-| [x] 040 | `POST` | `/api/experimental/mcp/{server}/disconnect` | `experimental.mcp.disconnect` | Experimental-only | Runtime disconnection override retained outside the stable API. |
-| [x] 041 | `GET` | `/api/mcp/resource` | `mcp.resource.catalog` | Keep | Reviewed separately by coworker. |
-| [x] 042 | `PATCH` | `/api/credential/{credentialID}` | `credential.update` | Change | Removed redundant location query; credentials and events are global. |
-| [x] 043 | `DELETE` | `/api/credential/{credentialID}` | `credential.remove` | Change | Removed redundant location query; credentials and events are global. |
-| [x] 044 | `POST` | `/api/credential/{credentialID}/activate` | `credential.activate` | Change | Removed redundant location query; credentials and events are global. |
-| [x] 045 | `GET` | `/api/websearch/provider` | `websearch.providers` | Keep | Provider availability remains location-scoped; singular resource path retained. |
-| [x] 046 | `POST` | `/api/websearch` | `websearch.query` | Keep | Unknown provider remains an invalid request; published time documented as Unix epoch milliseconds. |
-
-## Group 4: Session lifecycle
-
-**Endpoints:** 12
-
-| Done | Method | Path | Operation ID | Decision | Notes |
-|---|---|---|---|---|---|
-| [x] 047 | `GET` | `/api/session` | `session.list` | Keep | Existing filtering, ordering, and cursor contract retained for now. |
-| [x] 048 | `POST` | `/api/session` | `session.create` | Keep | Existing creation contract retained; model reference includes optional variant. |
-| [x] 049 | `GET` | `/api/experimental/session/stats` | `experimental.session.stats` | Experimental-only | Session analytics retained outside the stable API commitment. |
-| [x] 050 | `GET` | `/api/session/active` | `session.active` | Keep | Status record retained for future active-state expansion. |
-| [x] 051 | `GET` | `/api/session/{sessionID}` | `session.get` | Keep | Specific session read and typed `404` retained. |
-| [x] 052 | `DELETE` | `/api/session/{sessionID}` | `session.remove` | Keep | Session and child deletion with typed `404` retained. |
-| [x] 053 | `POST` | `/api/session/{sessionID}/fork` | `session.fork` | Change | Request now accepts optional branded `before` message ID; omission copies full history. |
-| [x] 054 | `POST` | `/api/session/{sessionID}/agent` | `session.switchAgent` | Keep | Subsequent-execution agent selection retained. |
-| [x] 055 | `POST` | `/api/session/{sessionID}/model` | `session.switchModel` | Keep | Subsequent-execution model and optional variant selection retained. |
-| [x] 056 | `PATCH` | `/api/session/{sessionID}` | `session.update` | Change | General session patch updates title and permissions; rules emit `session.permissions`. |
-| [x] 057 | `POST` | `/api/session/{sessionID}/move` | `session.move` | Change | Removed inaccurate local-change transfer claim; delivery behavior retained. |
-| [x] 058 | `POST` | `/api/session/{sessionID}/background` | `session.background` | Keep | Backgroundable foreground tools transition to background observation; idle requests remain no-ops. |
-
-## Group 5: Session execution and inputs
-
-**Endpoints:** 11
-
-| Done | Method | Path | Operation ID | Decision | Notes |
-|---|---|---|---|---|---|
-| [x] 059 | `POST` | `/api/session/{sessionID}/prompt` | `session.prompt` | Keep | Durable admission, delivery mode, and admit-only resume control retained. |
-| [x] 060 | `POST` | `/api/session/{sessionID}/command` | `session.command` | Change | Renamed request field from `command` to `name`; `204` retained. |
-| [x] 061 | `POST` | `/api/experimental/session/{sessionID}/skill` | `experimental.session.skill` | Experimental-only | Skill ID is now the `id` field; standalone activation remains experimental. |
-| [x] 062 | `POST` | `/api/session/{sessionID}/synthetic` | `session.synthetic` | Keep | Durable synthetic admission and delivery controls retained. |
-| [x] 063 | `POST` | `/api/session/{sessionID}/shell` | `session.shell` | Change | Caller ID is now the optimistic shell message ID; server derives its event ID. |
-| [x] 064 | `POST` | `/api/session/{sessionID}/compact` | `session.compact` | Keep | Durable compaction admission and delivery controls retained. |
-| [x] 065 | `POST` | `/api/experimental/session/{sessionID}/wait` | `experimental.session.wait` | Experimental-only | Race-free idle barrier retained outside the stable API. |
-| [x] 066 | `POST` | `/api/session/{sessionID}/generate` | `session.generate` | Keep | Transient generation from session context retained. |
-| [x] 067 | `POST` | `/api/session/{sessionID}/interrupt` | `session.interrupt` | Change | Renamed `continue` to `resume` across public and internal interruption APIs. |
-| [x] 068 | `PUT` | `/api/session/{sessionID}/environment` | `session.environment` | Keep | Process-local environment replacement retained in the stable API. |
-| [x] 069 | `POST` | `/api/session/{sessionID}/view` | `session.view` | Change | Idle watermark now uses the standard epoch-millisecond timestamp schema. |
-
-## Group 6: Session history and recovery
-
-**Endpoints:** 13
-
-| Done | Method | Path | Operation ID | Decision | Notes |
-|---|---|---|---|---|---|
-| [x] 070 | `POST` | `/api/experimental/session/import` | `experimental.session.import` | Experimental-only | Existing projected transcript import contract retained outside the stable API. |
-| [x] 071 | `GET` | `/api/experimental/session/{sessionID}/export` | `experimental.session.export` | Experimental-only | Existing projected transcript export contract retained outside the stable API. |
-| [x] 072 | `POST` | `/api/session/{sessionID}/revert/stage` | `session.revert.stage` | Keep | Existing staged history and optional file restoration behavior retained. |
-| [x] 073 | `DELETE` | `/api/session/{sessionID}/revert` | `session.revert.clear` | Change | Clearing staged revert now deletes the session revert resource. |
-| [x] 074 | `POST` | `/api/session/{sessionID}/revert/commit` | `session.revert.commit` | Keep | Explicit staged-revert commit action retained. |
-| [x] 075 | `GET` | `/api/session/{sessionID}/context` | `session.context` | Keep | Active model-context projection retained. |
-| [x] 076 | `GET` | `/api/session/{sessionID}/diff` | `session.diff` | Keep | Turn-range structured diff contract retained. |
-| [x] 077 | `GET` | `/api/experimental/session/{sessionID}/instructions/entries` | `experimental.session.instructions.entry.list` | Experimental-only | API-managed durable context entries retained outside the stable API. |
-| [x] 078 | `PUT` | `/api/experimental/session/{sessionID}/instructions/entries/{key}` | `experimental.session.instructions.entry.put` | Experimental-only | API-managed durable context entries retained outside the stable API. |
-| [x] 079 | `DELETE` | `/api/experimental/session/{sessionID}/instructions/entries/{key}` | `experimental.session.instructions.entry.remove` | Experimental-only | API-managed durable context entries retained outside the stable API. |
-| [x] 080 | `GET` | `/api/experimental/session/{sessionID}/log` | `session.log` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 081 | `GET` | `/api/session/{sessionID}/message/{messageID}` | `session.message.get` | Change | Normalized specific-message operation ID. |
-| [x] 082 | `GET` | `/api/session/{sessionID}/message` | `session.message.list` | Change | Normalized session-scoped message-list operation ID. |
-
-## Group 7: Inbox, permissions, and forms
-
-**Endpoints:** 19
-
-| Done | Method | Path | Operation ID | Decision | Notes |
-|---|---|---|---|---|---|
-| [x] 083 | `GET` | `/api/session/{sessionID}/inbox` | `session.inbox.list` | Change | Inbox timestamps now use the standard nested `time.created` shape. |
-| [x] 084 | `DELETE` | `/api/session/{sessionID}/inbox/{inboxID}` | `session.inbox.cancel` | Change | Cancellation is idempotent and returns `204` when the session exists. |
-| [x] 085 | `PATCH` | `/api/session/{sessionID}/inbox/{inboxID}` | `session.inbox.update` | Change | Consolidated delivery mutation with `delivery: "steer" | "queue"`. |
-| [x] 086 | — | — | — | Remove | Replaced by `session.inbox.update`. |
-| [x] 087 | `GET` | `/api/form` | `form.list` | Change | Removed redundant `request` path and operation namespace. |
-| [x] 088 | `GET` | `/api/session/{sessionID}/form` | `session.form.list` | Keep | Pending session form list retained with temporary MCP sentinel compatibility. |
-| [x] 089 | `POST` | `/api/session/{sessionID}/form` | `session.form.create` | Keep | External form creation and temporary MCP sentinel ownership retained. |
-| [x] 090 | `GET` | `/api/session/{sessionID}/form/{formID}` | `session.form.get` | Change | Form definition and lifecycle state are now returned together. |
-| [x] 091 | — | — | — | Remove | State is included by `session.form.get`. |
-| [x] 092 | `POST` | `/api/session/{sessionID}/form/{formID}/reply` | `session.form.reply` | Keep | One-shot validated form reply retained. |
-| [x] 093 | `DELETE` | `/api/session/{sessionID}/form/{formID}` | `session.form.cancel` | Change | Form cancellation now deletes the pending form resource. |
-| [x] 094 | `GET` | `/api/permission/request` | `permission.request.list` | Keep | Pending-request namespace retained alongside saved permissions. |
-| [x] 095 | `GET` | `/api/permission/saved` | `permission.saved.list` | Change | Added persisted creation and update timestamps under `time`. |
-| [x] 096 | `DELETE` | `/api/permission/saved/{id}` | `permission.saved.remove` | Keep | Idempotent saved-permission deletion retained. |
-| [x] 097 | `POST` | `/api/session/{sessionID}/permission` | `session.permission.create` | Keep | Non-blocking permission evaluation and pending-request creation retained. |
-| [x] 098 | `GET` | `/api/session/{sessionID}/permission` | `session.permission.list` | Keep | Pending session permission list retained. |
-| [x] 099 | `GET` | `/api/session/{sessionID}/permission/{requestID}` | `session.permission.get` | Keep | Specific pending permission read with ownership validation retained. |
-| [x] 100 | `POST` | `/api/session/{sessionID}/permission/{requestID}/reply` | `session.permission.reply` | Change | Renamed request field from `reply` to `decision`. |
-| [x] 101 | — | — | — | Remove | Permission rules are updated through `session.update`. |
-
-## Group 8: Filesystem, worktrees, and VCS
-
-**Endpoints:** 12
-
-| Done | Method | Path | Operation ID | Decision | Notes |
-|---|---|---|---|---|---|
-| [x] 102 | `GET` | `/api/fs/read/*` | `fs.read` | Keep | Relative wildcard file reads and raw byte responses retained. |
-| [x] 103 | `GET` | `/api/fs/list` | `fs.list` | Keep | Existing path scope and minimal entry metadata retained. |
-| [x] 104 | `GET` | `/api/fs/find` | `fs.find` | Keep | Existing ranked filesystem search retained. |
-| [x] 105 | `GET` | `/api/worktree` | `worktree.list` | Keep | Reviewed separately by coworker. |
-| [x] 106 | `POST` | `/api/worktree` | `worktree.create` | Keep | Reviewed separately by coworker. |
-| [x] 107 | `DELETE` | `/api/worktree` | `worktree.remove` | Keep | Reviewed separately by coworker. |
-| [x] 108 | `POST` | `/api/worktree/refresh` | `worktree.refresh` | Keep | Reviewed separately by coworker. |
-| [x] 109 | `GET` | `/api/vcs` | `vcs.get` | Change | Preserved branch nesting and added selected VCS provider ID. |
-| [x] 110 | `GET` | `/api/vcs/base` | `vcs.base` | Keep | Review-base inference and nullable unavailable state retained. |
-| [x] 111 | `GET` | `/api/vcs/status` | `vcs.status` | Keep | Existing working-copy status shape retained for now. |
-| [x] 112 | `GET` | `/api/vcs/branch` | `vcs.branch.list` | Change | Singular collection path and normalized operation ID. |
-| [x] 113 | `GET` | `/api/vcs/diff` | `vcs.diff` | Keep | Existing working, branch, and committed comparison modes retained. |
-
-## Group 9: PTYs, persistent terminals, and shells
-
-**Endpoints:** 24
-
-| Done | Method | Path | Operation ID | Decision | Notes |
-|---|---|---|---|---|---|
-| [x] 114 | `GET` | `/api/pty` | `pty.list` | Keep | PTY endpoints reviewed together and retained. |
-| [x] 115 | `POST` | `/api/pty` | `pty.create` | Keep | PTY endpoints reviewed together and retained. |
-| [x] 116 | `GET` | `/api/pty/{ptyID}` | `pty.get` | Keep | PTY endpoints reviewed together and retained. |
-| [x] 117 | `PUT` | `/api/pty/{ptyID}` | `pty.update` | Keep | PTY endpoints reviewed together and retained. |
-| [x] 118 | `DELETE` | `/api/pty/{ptyID}` | `pty.remove` | Keep | PTY endpoints reviewed together and retained. |
-| [x] 119 | `POST` | `/api/pty/{ptyID}/connect-token` | `pty.connect.token` | Keep | PTY endpoints reviewed together and retained. |
-| [x] 120 | `GET` | `/api/pty/{ptyID}/connect` | `pty.connect` | Keep | PTY endpoints reviewed together and retained. |
-| [x] 121 | `GET` | `/api/experimental/session/{sessionID}/terminal/read` | `server.experimental.persistentPty.read` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 122 | `GET` | `/api/experimental/session/{sessionID}/terminal` | `server.experimental.persistentPty.list` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 123 | `POST` | `/api/experimental/session/{sessionID}/terminal` | `server.experimental.persistentPty.create` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 124 | `POST` | `/api/experimental/persistent-pty/shutdown` | `server.experimental.persistentPty.shutdown` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 125 | `POST` | `/api/experimental/persistent-pty/handoff` | `server.experimental.persistentPty.handoff` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 126 | `GET` | `/api/experimental/persistent-pty/{ptyID}` | `server.experimental.persistentPty.get` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 127 | `PUT` | `/api/experimental/persistent-pty/{ptyID}` | `server.experimental.persistentPty.update` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 128 | `DELETE` | `/api/experimental/persistent-pty/{ptyID}` | `server.experimental.persistentPty.remove` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 129 | `GET` | `/api/experimental/persistent-pty/{ptyID}/snapshot` | `server.experimental.persistentPty.snapshot` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 130 | `POST` | `/api/experimental/persistent-pty/{ptyID}/connect-token` | `server.experimental.persistentPty.connectToken` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 131 | `GET` | `/api/experimental/persistent-pty/{ptyID}/connect` | `persistentPty.connect` | Experimental-only | Retained outside the stable API commitment. |
-| [x] 132 | `GET` | `/api/shell` | `shell.list` | Change | Stable shell inventory retained; numeric timestamps documented as epoch milliseconds. |
-| [x] 133 | `POST` | `/api/shell` | `shell.create` | Change | Timeout is optional and defaults to zero; caller metadata retained. |
-| [x] 134 | `GET` | `/api/shell/{id}` | `shell.get` | Keep | Specific running or retained shell read retained. |
-| [x] 135 | `DELETE` | `/api/shell/{id}` | `shell.remove` | Change | Shell deletion is idempotent and returns `204` when already absent. |
-| [x] 136 | — | — | — | Remove | Timeout mutation remains an internal Core shell operation. |
-| [x] 137 | `GET` | `/api/shell/{id}/output` | `shell.output` | Keep | Existing byte-cursor text output paging retained. |
-
-## Group 10: Events, RPC, and experimental operations
-
-**Endpoints:** 6
-
-| Done | Method | Path | Operation ID | Decision | Notes |
-|---|---|---|---|---|---|
-| [x] 138 | `POST` | `/api/experimental/generate` | `experimental.generate.text` | Experimental-only | Stateless generation retained alongside session generation. |
-| [x] 139 | `POST` | `/api/rpc/{rpcID}/{method}` | `rpc.call` | Keep | Generic typed-error plugin RPC transport retained. |
-| [x] 140 | `GET` | `/api/event` | `event.subscribe` | Keep | Unified native and dynamic plugin event stream retained. |
-| [x] 141 | `GET` | `/api/debug/location` | `debug.location.list` | Keep | Loaded-location debug inventory retained. |
-| [x] 142 | `DELETE` | `/api/debug/location` | `debug.location.evict` | Keep | Idempotent loaded-location eviction retained. |
-| [x] 143 | `GET` | `/api/experimental/migration/v1` | `experimental.migration.v1.status` | Experimental-only | Retained outside the stable API commitment. |
@@ -2,7 +2,7 @@
 exact = true
 # Only install newly resolved package versions published at least 3 days ago.
 minimumReleaseAge = 259200
-minimumReleaseAgeExcludes = ["@ai-sdk/amazon-bedrock", "@ai-sdk/anthropic", "@brendonovich/vite-plugin-opencode", "@opencode/sdk", "@opencode-ai/pty", "@opencode-ai/pty-darwin-arm64", "@opencode-ai/pty-darwin-x64", "@opencode-ai/pty-linux-arm64-gnu", "@opencode-ai/pty-linux-arm64-musl", "@opencode-ai/pty-linux-x64-gnu", "@opencode-ai/pty-linux-x64-musl", "@opentui/core", "@opentui/core-darwin-arm64", "@opentui/core-darwin-x64", "@opentui/core-linux-arm64", "@opentui/core-linux-arm64-musl", "@opentui/core-linux-x64", "@opentui/core-linux-x64-musl", "@opentui/core-win32-arm64", "@opentui/core-win32-x64", "@opentui/keymap", "@opentui/solid", "opentui-spinner", "gitlab-ai-provider", "opencode-gitlab-auth", "@ff-labs/fff-node", "@ff-labs/fff-bun", "@ff-labs/fff-bin-darwin-arm64", "@ff-labs/fff-bin-darwin-x64", "@ff-labs/fff-bin-linux-arm64-gnu", "@ff-labs/fff-bin-linux-arm64-musl", "@ff-labs/fff-bin-linux-x64-gnu", "@ff-labs/fff-bin-linux-x64-musl", "@ff-labs/fff-bin-win32-arm64", "@ff-labs/fff-bin-win32-x64", "@pierre/diffs", "@pierre/theming", "app-builder-lib", "dmg-builder", "electron", "electron-builder", "electron-publish", "blume", "mermaid"]
+minimumReleaseAgeExcludes = ["@ai-sdk/amazon-bedrock", "@ai-sdk/anthropic", "@brendonovich/vite-plugin-opencode", "@opencode-ai/sdk", "@opencode-ai/pty", "@opencode-ai/pty-darwin-arm64", "@opencode-ai/pty-darwin-x64", "@opencode-ai/pty-linux-arm64-gnu", "@opencode-ai/pty-linux-arm64-musl", "@opencode-ai/pty-linux-x64-gnu", "@opencode-ai/pty-linux-x64-musl", "@opentui/core", "@opentui/core-darwin-arm64", "@opentui/core-darwin-x64", "@opentui/core-linux-arm64", "@opentui/core-linux-arm64-musl", "@opentui/core-linux-x64", "@opentui/core-linux-x64-musl", "@opentui/core-win32-arm64", "@opentui/core-win32-x64", "@opentui/keymap", "@opentui/solid", "opentui-spinner", "gitlab-ai-provider", "opencode-gitlab-auth", "@ff-labs/fff-node", "@ff-labs/fff-bun", "@ff-labs/fff-bin-darwin-arm64", "@ff-labs/fff-bin-darwin-x64", "@ff-labs/fff-bin-linux-arm64-gnu", "@ff-labs/fff-bin-linux-arm64-musl", "@ff-labs/fff-bin-linux-x64-gnu", "@ff-labs/fff-bin-linux-x64-musl", "@ff-labs/fff-bin-win32-arm64", "@ff-labs/fff-bin-win32-x64", "@pierre/diffs", "@pierre/theming", "app-builder-lib", "dmg-builder", "electron", "electron-builder", "electron-publish", "blume", "mermaid"]

 [test]
 root = "./do-not-run-tests-from-root"
@@ -1,5 +1,4 @@
 import { domain } from "./stage"
-import { createWebApp } from "./webapp"

 const GITHUB_APP_ID = new sst.Secret("GITHUB_APP_ID")
 const GITHUB_APP_PRIVATE_KEY = new sst.Secret("GITHUB_APP_PRIVATE_KEY")
@@ -60,4 +59,12 @@ new sst.cloudflare.x.Astro("Web", {
  },
 })

-createWebApp("app." + domain)
+new sst.cloudflare.StaticSite("WebApp", {
+  domain: "app." + domain,
+  path: "packages/app",
+  build: {
+    // Preserve Sentry credentials and run source-map uploads on every deployment.
+    command: "bun run build",
+    output: "./dist",
+  },
+})
@@ -235,7 +235,6 @@ const bucketNew = new sst.cloudflare.Bucket("ZenDataNew")
 const DISCORD_INCIDENT_WEBHOOK_URL = new sst.Secret("DISCORD_INCIDENT_WEBHOOK_URL")
 const AWS_SES_ACCESS_KEY_ID = new sst.Secret("AWS_SES_ACCESS_KEY_ID")
 const AWS_SES_SECRET_ACCESS_KEY = new sst.Secret("AWS_SES_SECRET_ACCESS_KEY")
-const ENTERPRISE_SALES_INBOX_EMAIL = new sst.Secret("ENTERPRISE_SALES_INBOX_EMAIL")

 const SALESFORCE_CLIENT_ID = new sst.Secret("SALESFORCE_CLIENT_ID")
 const SALESFORCE_CLIENT_SECRET = new sst.Secret("SALESFORCE_CLIENT_SECRET")
@@ -264,7 +263,6 @@ new sst.cloudflare.x.SolidStart("Console", {
    EMAILOCTOPUS_API_KEY,
    AWS_SES_ACCESS_KEY_ID,
    AWS_SES_SECRET_ACCESS_KEY,
-    ENTERPRISE_SALES_INBOX_EMAIL,
    SALESFORCE_CLIENT_ID,
    SALESFORCE_CLIENT_SECRET,
    SALESFORCE_INSTANCE_URL,
@@ -1,19 +0,0 @@
-export function createWebApp(domain: string) {
-  return new sst.cloudflare.StaticSite("WebApp", {
-    domain,
-    path: "packages/app",
-    environment:
-      $app.stage === "beta"
-        ? {
-            OPENCODE_CHANNEL: "beta",
-            VITE_OPENCODE_SERVER_MODE: "none",
-            VITE_SENTRY_ENVIRONMENT: "beta",
-          }
-        : undefined,
-    build: {
-      // Preserve Sentry credentials and run source-map uploads on every deployment.
-      command: "bun run build",
-      output: "./dist",
-    },
-  })
-}
@@ -1,7 +1,6 @@
 #!/usr/bin/env bash
 set -euo pipefail
-APP=opencode
-SOURCE_APP=opencode
+APP=opencode2

 MUTED='\033[0;2m'
 RED='\033[0;31m'
@@ -23,7 +22,7 @@ Options:
 Examples:
    curl -fsSL https://opencode.ai/v2/install | bash
    curl -fsSL https://opencode.ai/v2/install | bash -s -- --version 0.0.0-beta-17236
-    ./install --binary /path/to/opencode
+    ./install --binary /path/to/opencode2
 EOF
 }

@@ -166,30 +165,22 @@ else
        exit 1
    fi

-    package_scope="@opencode"
    if [ -z "$requested_version" ]; then
-        metadata=$(curl -fsSL https://opencode.ai/update/api/latest/cli/npm || true)
+        metadata=$(curl -fsSL https://registry.npmjs.org/@opencode-ai%2fcli/beta || true)
        specific_version=$(echo "$metadata" | sed -n 's/.*"version":"\([^"]*\)".*/\1/p')
-        package=$(echo "$metadata" | sed -n 's/.*"package":"\([^"]*\)".*/\1/p')

-        if [ -z "$specific_version" ] || [ -z "$package" ]; then
+        if [ -z "$specific_version" ]; then
            echo -e "${RED}Failed to fetch version information${NC}"
            exit 1
        fi
-        package_scope="${package%/cli}"
    else
        # Strip leading 'v' if present
        requested_version="${requested_version#v}"
        specific_version=$requested_version
    fi

-    package_name="$package_scope/cli-$target"
-    http_status=$(curl -s -o /dev/null -w "%{http_code}" "https://registry.npmjs.org/$package_scope%2fcli-$target/$specific_version" || true)
-    # Older clients install the minimum release before they can migrate package names.
-    if [ "$http_status" = "404" ] && [ -n "$requested_version" ]; then
-        package_name="@opencode-ai/cli-$target"
-        http_status=$(curl -s -o /dev/null -w "%{http_code}" "https://registry.npmjs.org/@opencode-ai%2fcli-$target/$specific_version" || true)
-    fi
+    package_name="@opencode-ai/cli-$target"
+    http_status=$(curl -s -o /dev/null -w "%{http_code}" "https://registry.npmjs.org/@opencode-ai%2fcli-$target/$specific_version" || true)
    if [ "$http_status" = "404" ]; then
        echo -e "${RED}Error: Version ${specific_version} is not available for $target${NC}"
        echo -e "${MUTED}Available versions: https://www.npmjs.com/package/$package_name?activeTab=versions${NC}"
@@ -202,9 +193,9 @@ else

    filename="cli-$target-$specific_version.tgz"
    url="https://registry.npmjs.org/$package_name/-/$filename"
-    binary_name="$SOURCE_APP"
+    binary_name="$APP"
    if [ "$os" = "windows" ]; then
-        binary_name="$SOURCE_APP.exe"
+        binary_name="$APP.exe"
    fi
 fi

@@ -231,7 +222,12 @@ check_version() {
        installed_version="${installed_version##* }"
        installed_version="${installed_version#v}"

-        print_message info "${MUTED}Installed version: ${NC}$installed_version."
+        if [[ "$installed_version" != "$specific_version" ]]; then
+            print_message info "${MUTED}Installed version: ${NC}$installed_version."
+        else
+            print_message info "${MUTED}Version ${NC}$specific_version${MUTED} already installed"
+            exit 0
+        fi
    fi
 }

@@ -336,46 +332,15 @@ download_and_install() {
    fi

    tar -xzf "$tmp_dir/$filename" -C "$tmp_dir"
-    local installed_binary="$APP"
-    if [ "$os" = "windows" ]; then
-        installed_binary="$APP.exe"
-    fi
-    mv "$tmp_dir/package/bin/$binary_name" "$INSTALL_DIR/$installed_binary"
-    chmod 755 "$INSTALL_DIR/$installed_binary"
+    mv "$tmp_dir/package/bin/$binary_name" "$INSTALL_DIR"
+    chmod 755 "${INSTALL_DIR}/$binary_name"
    rm -rf "$tmp_dir"
 }

 install_from_binary() {
    print_message info "\n${MUTED}Installing ${NC}$APP ${MUTED}from: ${NC}$binary_path"
-    local installed_binary="$APP"
-    case "$(uname -s)" in
-        MINGW*|MSYS*|CYGWIN*) installed_binary="$APP.exe" ;;
-    esac
-    cp "$binary_path" "$INSTALL_DIR/$installed_binary"
-    chmod 755 "$INSTALL_DIR/$installed_binary"
-}
-
-install_legacy_shim() {
-    local shim_os="${os:-}"
-    if [[ -z "$shim_os" ]]; then
-        case "$(uname -s)" in
-            MINGW*|MSYS*|CYGWIN*) shim_os="windows" ;;
-        esac
-    fi
-    rm -f "$INSTALL_DIR/opencode2" "$INSTALL_DIR/opencode2.exe" "$INSTALL_DIR/opencode2.cmd"
-    if [[ "$shim_os" == "windows" ]]; then
-        cat > "$INSTALL_DIR/opencode2.cmd" <<'EOF'
-@echo off
-"%~dp0opencode.exe" %*
-exit /b %errorlevel%
-EOF
-        return
-    fi
-    cat > "$INSTALL_DIR/opencode2" <<'EOF'
-#!/bin/sh
-exec "$(dirname "$0")/opencode" "$@"
-EOF
-    chmod 755 "$INSTALL_DIR/opencode2"
+    cp "$binary_path" "${INSTALL_DIR}/$APP"
+    chmod 755 "${INSTALL_DIR}/$APP"
 }

 if [ -n "$binary_path" ]; then
@@ -384,7 +349,6 @@ else
    check_version
    download_and_install
 fi
-install_legacy_shim


 add_to_path() {
@@ -481,7 +445,7 @@ echo -e ""
 echo -e "${MUTED}OpenCode includes free models, to start:${NC}"
 echo -e ""
 echo -e "cd <project>  ${MUTED}# Open directory${NC}"
-echo -e "opencode      ${MUTED}# Run command${NC}"
+echo -e "opencode2     ${MUTED}# Run command${NC}"
 echo -e ""
 echo -e "${MUTED}For more information visit ${NC}https://opencode.ai/v2/docs"
 echo -e ""
@@ -87,11 +87,6 @@ stdenv.mkDerivation (finalAttrs: {

    cd packages/desktop

-    export OPENCODE_CLI_DIST="$TMPDIR/desktop-cli"
-    cli_package=$(bun -e 'import { getCurrentCli } from "./scripts/utils.ts"; console.log(getCurrentCli().package.replace("@opencode/", ""))')
-    mkdir -p "$OPENCODE_CLI_DIST/$cli_package/bin"
-    cp ${lib.getExe opencode} "$OPENCODE_CLI_DIST/$cli_package/bin/opencode"
-
    bun run build
    npx electron-builder --dir \
      --config electron-builder.config.ts \
@@ -1,8 +1,8 @@
 {
  "nodeModules": {
-    "x86_64-linux": "sha256-WBGj4wU5PQs+0zbDbScFhJs0GL8qWnswIsJb/Kee5Qc=",
-    "aarch64-linux": "sha256-Z8hkyNMdqCpuv24q50QhO2RECINvENjBhLDY5FKcnFc=",
-    "aarch64-darwin": "sha256-HZHb9HcXMOc7bKR7eADQSyfWxX37GAcoRi/EMSpRiP4=",
-    "x86_64-darwin": "sha256-CcWCOAcW4t9ADs48fMhumSbDcQWdk91LpkG6fe/gWlk="
+    "x86_64-linux": "sha256-Fmwqp/fjTMX7gQW01Zgta51reLHp1S53GSQgBcJePrY=",
+    "aarch64-linux": "sha256-KLI6OIbvycMePKxt66nNKeILYJSEkufOIaSawZ/gotc=",
+    "aarch64-darwin": "sha256-go1wmrsHfYfJ3ukUIR/fveobyVba4E9G/rdsB/J2cQQ=",
+    "x86_64-darwin": "sha256-UnVYMijlG12k4RLFkTwf4Or0yXqFSwe1Ji6QCGufjzg="
  }
 }
@@ -27,12 +27,11 @@ stdenvNoCC.mkDerivation {
    fileset = lib.fileset.intersection (lib.fileset.fromSource (lib.sources.cleanSource ../.)) (
      lib.fileset.unions [
        ../packages
-        ../services
        ../bun.lock
        ../package.json
        ../patches
        ../install # required by desktop build (cli.rs include_str!)
-        ../.github/TEAM_MEMBERS # required by @opencode/script
+        ../.github/TEAM_MEMBERS # required by @opencode-ai/script
      ]
    );
  };
@@ -8,7 +8,6 @@
  makeBinaryWrapper,
  models-dev,
  ripgrep,
-  wayland,
  installShellFiles,
  versionCheckHook,
  writableTmpDirAsHomeHook,
@@ -63,10 +62,9 @@ stdenvNoCC.mkDerivation (finalAttrs: {
  installPhase = ''
    runHook preInstall

-    install -Dm755 dist/cli-*/bin/opencode $out/bin/opencode
+    install -Dm755 dist/cli-*/bin/opencode2 $out/bin/opencode2

-    # OpenTUI dlopens Wayland for clipboard images.
-    wrapProgram $out/bin/opencode \
+    wrapProgram $out/bin/opencode2 \
      --prefix PATH : ${
        lib.makeBinPath (
          [
@@ -75,21 +73,13 @@ stdenvNoCC.mkDerivation (finalAttrs: {
          # bun runs sysctl to detect if running on rosetta2
          ++ lib.optional stdenvNoCC.hostPlatform.isDarwin sysctl
        )
-      } ${lib.optionalString stdenvNoCC.hostPlatform.isLinux ''
-        --prefix LD_LIBRARY_PATH : ${lib.makeLibraryPath [ wayland ]}
-      ''}
-
-    ln -s opencode $out/bin/opencode2
+      }

    runHook postInstall
  '';

  postInstall = lib.optionalString (stdenvNoCC.buildPlatform.canExecute stdenvNoCC.hostPlatform) ''
    # trick yargs into also generating zsh completions
-    installShellCompletion --cmd opencode \
-      --bash <($out/bin/opencode completion) \
-      --zsh <(SHELL=/bin/zsh $out/bin/opencode completion)
-
    installShellCompletion --cmd opencode2 \
      --bash <($out/bin/opencode2 completion) \
      --zsh <(SHELL=/bin/zsh $out/bin/opencode2 completion)
@@ -111,7 +101,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
    description = "The open source coding agent";
    homepage = "https://opencode.ai";
    license = lib.licenses.mit;
-    mainProgram = "opencode";
+    mainProgram = "opencode2";
    inherit (node_modules.meta) platforms;
  };
 })
@@ -2,20 +2,18 @@
  "$schema": "https://json.schemastore.org/package.json",
  "name": "opencode",
  "description": "AI-powered development tool",
-  "version": "2.0.14",
+  "version": "0.0.0",
  "private": true,
  "type": "module",
-  "packageManager": "bun@1.4.2",
+  "packageManager": "bun@1.3.14",
  "scripts": {
-    "dev": "bun run --cwd packages/cli src/index.ts",
-    "dev:live": "sh -c 'OPENCODE_TUI_CHANNEL=dev OPENCODE_PASSWORD=\"$(opencode service get password)\" exec bun run dev \"$@\" --server \"$(opencode service status)\"' --",
-    "dev:vite": "bun run --cwd packages/cli --conditions=browser dev/vite.ts",
-    "dev:vite:live": "sh -c 'OPENCODE_TUI_CHANNEL=dev OPENCODE_PASSWORD=\"$(opencode service get password)\" exec bun run dev:vite \"$@\" --server \"$(opencode service status)\"' --",
+    "dev": "bun run --cwd packages/cli --conditions=browser src/index.ts",
+    "dev:live": "OPENCODE_TUI_CHANNEL=dev OPENCODE_PASSWORD=\"$(opencode2 service get password)\" bun run dev --server \"$(opencode2 service status)\"",
    "dev:desktop": "bun --cwd packages/desktop dev",
    "dev:web": "bun --cwd packages/app dev",
    "dev:console": "ulimit -n 10240 2>/dev/null; bun run --cwd packages/console/app dev",
    "dev:stats": "bun sst shell --stage=production -- bun run --cwd packages/stats/app dev",
-    "dev:www": "bun run --cwd services/www dev",
+    "dev:www": "bun run --cwd packages/www dev",
    "dev:storybook": "bun --cwd packages/storybook storybook",
    "bench:devex": "bun run --cwd packages/app test:bench:devex",
    "lint": "oxlint",
@@ -24,12 +22,12 @@
    "test:lint-rules": "ast-grep test -c script/ast-grep/sgconfig.yml",
    "test:effect-simplification-rules": "ast-grep test -c script/ast-grep/effect-simplifications/sgconfig.yml",
    "typecheck": "bun turbo typecheck --concurrency=3",
-    "check": "bun run lint && bun run typecheck",
    "typecheck:profile": "bun script/profile-typecheck.ts",
    "typecheck:profile:packages": "bun script/profile-typecheck-packages.ts",
    "upgrade-opentui": "bun run script/upgrade-opentui.ts",
    "postinstall": "bun run --cwd packages/core fix-node-pty",
    "prepare": "husky",
+    "reserve-packages": "bun script/reserve-package-names.ts",
    "random": "echo 'Random script'",
    "sso": "aws sso login --sso-session=opencode --no-browser",
    "test": "echo 'do not run tests from root' && exit 1"
@@ -37,7 +35,6 @@
  "workspaces": {
    "packages": [
      "packages/*",
-      "services/*",
      "packages/console/*",
      "packages/stats/*"
    ],
@@ -47,14 +44,14 @@
      "@effect/platform-node-shared": "4.0.0-rc.112",
      "@effect/sql-sqlite-bun": "4.0.0-rc.112",
      "@npmcli/arborist": "9.4.0",
-      "@types/bun": "1.4.0",
+      "@types/bun": "1.3.13",
      "@types/cross-spawn": "6.0.6",
      "@octokit/rest": "22.0.0",
      "@hono/standard-validator": "0.2.0",
      "@hono/zod-validator": "0.4.2",
-      "@opentui/core": "0.5.10",
-      "@opentui/keymap": "0.5.10",
-      "@opentui/solid": "0.5.10",
+      "@opentui/core": "0.5.9",
+      "@opentui/keymap": "0.5.9",
+      "@opentui/solid": "0.5.9",
      "@tanstack/solid-virtual": "3.13.37",
      "@shikijs/stream": "4.4.3",
      "@standard-schema/spec": "1.1.0",
@@ -96,6 +93,7 @@
      "@typescript/native-preview": "7.0.0-dev.20251207.1",
      "zod": "4.1.8",
      "remeda": "2.26.0",
+      "resolve.exports": "2.0.3",
      "sst": "4.13.1",
      "shiki": "4.4.3",
      "solid-list": "0.3.0",
@@ -116,7 +114,6 @@
  "devDependencies": {
    "@actions/artifact": "5.0.1",
    "@ast-grep/cli": "0.44.0",
-    "@opencode/client": "workspace:*",
    "@types/react": "19.2.17",
    "@types/react-dom": "19.2.3",
    "@tsconfig/bun": "catalog:",
@@ -133,8 +130,8 @@
  },
  "dependencies": {
    "@aws-sdk/client-s3": "3.933.0",
-    "@opencode/plugin": "workspace:*",
-    "@opencode/script": "workspace:*",
+    "@opencode-ai/plugin": "workspace:*",
+    "@opencode-ai/script": "workspace:*",
    "heap-snapshot-toolkit": "1.1.3",
    "typescript": "catalog:"
  },
@@ -151,6 +148,10 @@
    "esbuild",
    "node-pty",
    "protobufjs",
+    "tree-sitter",
+    "tree-sitter-bash",
+    "tree-sitter-powershell",
+    "web-tree-sitter",
    "electron"
  ],
  "overrides": {
@@ -160,7 +161,6 @@
    "@effect/platform-node-shared": "catalog:",
    "@types/bun": "catalog:",
    "@types/node": "catalog:",
-    "bun-types": "1.4.2",
    "effect": "catalog:",
    "solid-js": "catalog:"
  },
@@ -176,10 +176,8 @@
    "pacote@21.5.0": "patches/pacote@21.5.0.patch",
    "@ai-sdk/google@3.0.73": "patches/@ai-sdk%2Fgoogle@3.0.73.patch",
    "@pierre/trees@1.0.0-beta.4": "patches/@pierre%2Ftrees@1.0.0-beta.4.patch",
+    "@modelcontextprotocol/sdk@1.29.0": "patches/@modelcontextprotocol%2Fsdk@1.29.0.patch",
    "@tanstack/virtual-core@3.17.8": "patches/@tanstack%2Fvirtual-core@3.17.8.patch",
-    "@ff-labs/fff-bun@0.10.5": "patches/@ff-labs%2Ffff-bun@0.10.5.patch",
-    "ghostty-web@github:anomalyco/ghostty-web#83c0a07": "patches/ghostty-web@0.3.0.patch",
-    "vite@8.2.2": "patches/vite@8.2.2.patch",
-    "@modelcontextprotocol/client@2.0.0": "patches/@modelcontextprotocol%2Fclient@2.0.0.patch"
+    "@ff-labs/fff-bun@0.10.5": "patches/@ff-labs%2Ffff-bun@0.10.5.patch"
  }
 }
@@ -10,18 +10,9 @@

 ## Conventions

-Per-type constructors live on the type, not as top-level re-exports. Use `Message.system(...)`, `Message.user(...)`, `Message.assistant(...)`, `Message.tool(...)`, `Message.media(...)`, `LanguageModel.make(...)`, `ToolDefinition.make(...)`, `ToolCallPart.make(...)`, `ToolResultPart.make(...)`, `ToolChoice.make(...)`, `ToolChoice.named(...)`, `SystemPart.make(...)`, and `GenerationOptions.make(...)` directly. The top-level `LLM` namespace is reserved for request-shaped call APIs: `LLM.request`, `LLM.generate`, `LLM.stream`, and `LLM.generateObject`. Use `LLMRequest.update(...)` when deriving canonical request data; do not add a duplicate `LLM.updateRequest(...)` path. Two ways to construct the same thing is one too many.
+Per-type constructors live on the type, not as top-level re-exports. Use `Message.system(...)`, `Message.user(...)`, `Message.assistant(...)`, `Message.tool(...)`, `LanguageModel.make(...)`, `ToolDefinition.make(...)`, `ToolCallPart.make(...)`, `ToolResultPart.make(...)`, `ToolChoice.make(...)`, `ToolChoice.named(...)`, `SystemPart.make(...)`, and `GenerationOptions.make(...)` directly. The top-level `LLM` namespace is reserved for request-shaped call APIs: `LLM.request`, `LLM.generate`, `LLM.stream`, and `LLM.generateObject`. Use `LLMRequest.update(...)` when deriving canonical request data; do not add a duplicate `LLM.updateRequest(...)` path. Two ways to construct the same thing is one too many.

-Modality namespaces mirror `LLM` exactly: `Image.request`, `Image.generate`, `Image.stream` (later `Video`, `Speech`, `Transcription`). Common request fields (`images`, `mask`, `n`, `size`, `aspectRatio`, `seed`, `format`) lower natively or fail with a typed `AIError`; provider-native controls always live under `providerOptions`, never under a modality-specific `options` key.
-
-Media payloads are always `Media.Asset` (`src/media.ts`). Construct them with `Media.bytes`, `Media.base64`, `Media.url`, `Media.ref`, `Media.fromDataUrl`, or `Media.file`; never introduce a parallel `data: string | Uint8Array` shape. `MediaPart.media`, `ImageRequest.images`/`mask`, `ImageResponse.images`, and the `media` `LLMEvent` all share it. Protocols branch on `asset.source.type` and `asset.kind` and use `ProviderShared.inlineMedia` / `requireInlineMedia` / `mediaUrl` / `MediaInput.refID` rather than re-deriving base64 or URL handling.
-
-`schema/messages.ts → media.ts → route/executor-service.ts` is an accepted runtime dependency from the schema layer on the executor service tag: `Media.Asset.bytes()` must be able to download `url` sources, and the tag lives in that leaf module precisely so the schema barrel never imports the executor implementation (which imports the schema barrel back). Do not move the tag into `route/executor.ts` or import `route/executor.ts` from `src/schema/*` or `src/media.ts`.
-
-Nothing in `src/*` except `src/promise.ts` may know about Promises. `@opencode/ai/promise` (`AI.make({ layer? })`, default `ai`) is the single Promise/`AsyncIterable` surface for LLM and media; it runs the Effect APIs in one `ManagedRuntime` and rethrows `AIError` unchanged.
-
- Prefer forward compatibility for provider-defined options that OpenCode only passes through. For pass-through string enums, expose known values for autocomplete while accepting future values with `Known | (string & {})`, and accept any string at runtime. Closed literals are appropriate when OpenCode branches on a value, transforms its associated structure, or otherwise cannot correctly handle an unknown variant. New options whose shape or behavior requires implementation remain unsupported until they are handled; do not blindly forward unknown structures.
- Order reasoning-effort values from lowest to highest: `none`, `minimal`, `low`, `medium`, `high`, `xhigh`, `max`. Provider-specific subsets follow the same relative order in types, schemas, option lists, and tests.
+- Keep provider-defined string enums forward-compatible. Expose known values for autocomplete while accepting future values with `Known | (string & {})`; use `Schema.String` at runtime unless rejecting unknown values is required for correctness.

 ## Tests

@@ -90,16 +81,10 @@ export const route = Route.make({

 Route defaults are request-shaping defaults such as `headers`, `limits`, `generation`, `providerOptions`, and `http`. Endpoint host/query belongs on the route endpoint. Selected `LanguageModel` values carry only model id, provider id, and the configured route value. Model capability/catalog metadata lives outside this package; protocol support is enforced by request lowering and typed `AIError`s.

-The four-axis decomposition is the reason DeepSeek, TogetherAI, Cerebras, Baseten, Fireworks, and DeepInfra all reuse `OpenAIChat.protocol` verbatim — each provider owns a small `Route.make(...)` composition instead of a protocol clone. Bug fixes in one protocol propagate to every consumer of that protocol in a single commit.
+The four-axis decomposition is the reason DeepSeek, TogetherAI, Cerebras, Baseten, Fireworks, and DeepInfra all reuse `OpenAIChat.protocol` verbatim — each provider deployment is a 5-15 line `Route.make(...)` call instead of a 300-400 line route clone. Bug fixes in one protocol propagate to every consumer of that protocol in a single commit.

 When a provider supports multiple physical transports, selection remains execution policy below its semantic route. `OpenResponsesChannel.transport(...)` owns the provider-neutral Responses WebSocket concept: it prepares one final request, executes HTTP by default, strips WebSocket-disallowed fields, and passes a generic channel exchange to a per-call `WebSocketChannelExecutor` when supplied. Provider-specific Responses routes opt in with handshake and connection-age policy. `Route.streamPrepared` owns decoding and acknowledges channel completion only after successful full consumption.

-### Media Routes
-
-Media does not fit the SSE-frames-to-event-state-machine LLM route. `MediaRoute.make(...)` (`src/route/media.ts`) composes a `MediaProtocol` kind with `Endpoint` and `Auth` and owns the transport plumbing: `http` option merging, URL/query rendering, auth headers, JSON vs multipart encoding, and handing the response back to the protocol. `MediaProtocol.inline` (`src/route/media-protocol.ts`) is `body.from(request)` plus `response.decode(response, context)`; use `MediaProtocol.decodeJson` / `text` / `bytes` so decode failures retain the raw body and HTTP context. `Generation` (`src/generation.ts`) is the provider-neutral handle for a queued generation over a `GenerationRoute` (`status`, `result`, `cancel`, `pollHint`). Image protocol files follow the same section order as LLM protocols and declare unsupported common fields once through `MediaInput.rejectUnsupported`.
-
-`MediaProtocol.queued` is the submit-then-poll kind every video route uses: `start` (body + decode into `{ token, snapshot }`), `status`, `result`, and optional `cancel`, each addressed by a route-owned `token` whose `Schema.Codec` makes it serializable. `MediaRoute.inline` and `MediaRoute.queued` compose the two kinds with `Endpoint` and `Auth`; the queued route decodes the token once at the boundary (`start` output or `resume` input) and closes over it in a token-free `GenerationRoute` (`status`/`result`/`cancel` are plain Effects), so `Generation` never sees the token's shape and only carries the encoded JSON for persistence. Polls reuse the route's auth and deployment headers plus the request's `http` overlay after `start`, and resolve relative paths against the route base URL (provider-issued absolute URLs such as fal's `status_url` pass through). `result` is always its own GET even when the provider returns output inside the status document, so `Generation.await` behaves the same after `start` and after `resume`. `PollContext.auth` carries only what `Auth` added so protocols can hand download credentials to output assets as transient `Media.Asset.headers` (Veo) — never part of `source` or JSON. Status strings map through a per-protocol `STATUS` table via `MediaProtocol.status`; terminal generations without output fail through `output.ended` / `output.contentPolicy` with the provider document on `reason.body`. `Generation.AwaitOptions` (`{ poll?: Poll }`) is the one options type for `await`, `events`, `Video.generate`, and `Video.stream`.
-
 ### URL Construction

 `Endpoint` owns `{ baseURL, path, query }`. Each protocol route includes a canonical endpoint when the provider has one (e.g. `https://api.openai.com/v1`); provider helpers override endpoint fields by configuring the route before selecting a model. Generic OpenAI-compatible routes have no canonical URL and require configuration before execution.
@@ -108,12 +93,11 @@ For providers where the URL is derived from typed inputs (Azure resource name, B

 ### Provider Facades

-Provider-facing APIs are configured facades over route values. Endpoint/auth/resource/API-version setup happens before model selection, and model selectors accept only a model or deployment id. Media models use per-modality selectors on the same facade (`openai.image(id)`, later `.video` / `.speech` / `.transcription`) that mirror `openai.responses(id)`; the one-word overlap with the request namespace is accepted over a second construction path:
+Provider-facing APIs are configured facades over route values. Endpoint/auth/resource/API-version setup happens before model selection, and model selectors accept only a model or deployment id:

 ```ts
 const openai = OpenAI.configure({ apiKey, baseURL })
 const model = openai.responses("gpt-4o-mini")
-const image = openai.image("gpt-image-2")

 const azure = Azure.configure({ resourceName, apiKey, apiVersion: "v1" })
 const deployment = azure.responses("my-deployment")
@@ -131,20 +115,18 @@ Keep provider facades small and explicit:
 - Prefer `apiKey` as provider-specific sugar and `auth` as the explicit override; keep them mutually exclusive in provider option types with `ProviderAuthOption`.
 - Resolve `apiKey` → `Auth` with `AuthOptions.bearer(options, "<PROVIDER>_API_KEY")` (it honors an explicit `auth` override and falls back to `Auth.config(envVar)` so missing keys surface a typed `Authentication` error rather than a runtime crash).
 - Use separate top-level facades for products with different required setup, such as `CloudflareAIGateway` and `CloudflareWorkersAI`.
- Give every named provider its own file and top-level export. Keep its endpoint, auth defaults, and route setup in that file. Compose shared protocols directly; do not nest named provider presets under generic compatible facades or keep their endpoints in a shared provider profile registry.

 `Provider.make(...)` remains available for simple static provider definitions, but new built-in providers should prefer plain configured facades unless a helper removes real duplication without adding runtime behavior.

 ### Provider Package Entrypoints

-Catalog-selected native providers use package-like export paths from `@opencode/ai`. They are internal entrypoints in one npm package, not separately published provider packages. Every entrypoint implements `ProviderPackage.Definition` and exposes `model(modelID, settings)`, where settings are one flat serializable object: the connection keys the entrypoint declares (`apiKey`, `baseURL`, `region`, …), the common `headers` and `body` overlays, and the protocol's request options (`reasoningEffort`, `thinking`, …) side by side. Each entrypoint destructures its own connection keys and passes the rest to the route as `providerOptions`; there is no nested `providerOptions` at the entrypoint.
+Catalog-selected native providers use package-like export paths from `@opencode-ai/ai`. They are internal entrypoints in one npm package, not separately published provider packages. Every entrypoint implements `ProviderPackage.Definition` and exposes `model(modelID, settings)`, where settings are serializable provider configuration plus common `headers`, `body`, and `limits` overlays.

 ```ts
-import { model } from "@opencode/ai/providers/openai/responses"
+import { model } from "@opencode-ai/ai/providers/openai/responses"

 const selected = model("gpt-5", {
  apiKey,
-  reasoningEffort: "high",
 })
 ```

@@ -181,10 +163,6 @@ Native chronological system messages are route/model-specific. Open Responses lo

 The wrapped-user fallback preserves ordering while visibly lowering authority. Never silently pass a raw chronological `role: "system"` through a route that might reject it. Do not insert raw retrieved documents, tool output, or web content into privileged chronological system updates; keep untrusted content in ordinary user/tool channels.

-### Effort Updates
-
-`Message.effort({ effort, previous })` is a chronological "reasoning effort changed here" marker (`undefined` means the model default). Changing a top-level effort invalidates the whole provider prompt cache, so protocols with a native per-message update (`Protocol.supportsEffortUpdates`) keep the top-level effort at the first marker's `previous` and lower each marker in place: Anthropic Messages emits an empty `role: "system"` message with `output_config.effort` plus the `mid-conversation-output-config-2026-07-01` beta, and OpenAI Responses emits `configuration_update` items. `applyEffortUpdates` runs in `prepareRequest` and strips the markers for every other route, so a protocol without support keeps today's plain top-level behaviour. When the last marker disagrees with the effort the request asks for (reverted or forked history), `resolveEffortUpdates` strips the markers and falls back to a plain top-level change.
-
 ### Tools

 Tool loops are represented in common messages and events:
@@ -1,345 +0,0 @@
-# Media generation in `@opencode/ai` — public API direction
-
-Status: phases 1–2 implemented; phases 3–5 proposal.
-
-## Goal
-
-`@opencode/ai` becomes the one package you reach for to generate anything: text, images, video, speech, transcripts, and later music and realtime. The LLM surface already exists and is shaped by three constraints: Effect-first, used by OpenCode Core, usable externally. Media has a different priority order: **external DX first**, Effect and Promise as peers, Core as one consumer among many.
-
-The design below is derived from a survey of the raw provider APIs (OpenAI, Gemini/Veo/Imagen, xAI, Stability, BFL, fal, Replicate, Runway, Luma, Kling, MiniMax, ElevenLabs, Deepgram, Cartesia, AssemblyAI, Lyria) and of existing multi-provider SDKs.
-
-## What the survey forces
-
-1. **Three execution shapes, everywhere.** Inline sync (OpenAI images, all TTS, Gemini), async job with polling or webhook (every video provider, BFL, fal, Replicate, AssemblyAI), and bidirectional streams (ElevenLabs/Cartesia/Deepgram WS, realtime). Video has no sync provider at all.
-2. **Output is never just bytes.** base64, signed URLs with TTLs from 10 minutes (BFL) to 2 days (Veo), URLs that need auth plus redirect (Veo), separate download endpoints (Sora `/content?variant=`), raw bodies (Stability, TTS). Multi-output is the norm.
-3. **Inputs have roles.** First/last frame, mask, style/subject reference, source video for edit/extend, reference audio, prior generation id, provider-side file handles (`file_id`, `gs://`, `runway://`, `mm_file://`).
-4. **Partial streaming is modality-specific.** Images: a few whole partial frames. Audio: ordered chunks plus timestamp events. Jobs: status/progress/logs. Video: none.
-5. **Usage is a union**: tokens, seconds, characters (often only in headers), credits, compute time.
-6. **Moderation can be partial success** (Veo strips audio but returns video). Deprecations are constant (Sora API shuts down 2026-09-24, Imagen on Gemini API 2026-08-17).
-
-## Where existing SDKs are weak and we should not be
-
- No streaming TTS.
- Video handles are experimental start/status pairs; the polling loop lives inside the generate call.
- Unsupported inputs become silent warnings arrays, so a request can succeed while dropping your mask.
- `n` is fanned out into hidden parallel calls, which obscures cost and idempotency.
- Each modality has its own bespoke result type; the file abstraction is a lazy base64/bytes pair with no URL, expiry, or provider ref.
- Effect's own `unstable/ai` has no media generation. Nothing in the Effect ecosystem owns this.
-
-## Design principles
-
- **Same shape as LLM.** `X.request(...)` → Schema class; `X.generate(request)` / `X.stream(request)`; `XClient.Service` + `layer`; typed `AIError`. If you know `LLM`, you know `Video`.
- **Execution shape is route policy, not API shape.** `Image.generate` returns an image whether the provider is inline or queued. Job control is available uniformly when you want it.
- **Errors, not warnings.** Unsupported common fields fail at the protocol boundary with a typed `AIError`, as the LLM routes do today. Provider-side partial results (filtered audio, moderated sample) surface as `notices` on the response, never as silent drops.
- **One asset type in, one asset type out**, shared with LLM messages and tool results.
- **Typed per-model options**, no hidden fan-out, no implicit retries that spend money.
- **Promise API is one mechanism for the whole package**, not a media-only wrapper.
- **One construction path per model.** Media models come from per-modality selectors on the configured facade (`openai.image("gpt-image-2")`), the same shape as `openai.responses("gpt-5")`.
-
-## Public API
-
-### Model selection
-
-A model value is built as `OpenAI.configure({ apiKey }).responses("gpt-5")` or `.image("gpt-image-2")`: `configure` fixes credentials, endpoint, and defaults; the selector fixes which of the provider's APIs to hit and binds the typed `providerOptions` generic. Media follows the same shape with one selector per modality — `openai.image(id)` today, `.video(id)` / `.speech(id)` / `.transcription(id)` as those modalities land — mirroring `openai.responses(id)`. `Image.request` accepts `ImageModel` only, exactly as `LLM.request` accepts `LanguageModel`.
-
-```ts
-import { OpenAI, Google } from "@opencode/ai/providers"
-
-const openai = OpenAI.configure({ apiKey })      // OpenAI(...) alone uses env auth (OPENAI_API_KEY)
-
-LLM.request({ model: openai.responses("gpt-5"), prompt })
-Image.request({ model: openai.image("gpt-image-2"), prompt })
-Video.request({ model: google.video("veo-3.1-generate-preview"), prompt })
-Speech.request({ model: openai.speech("gpt-4o-mini-tts"), text })
-Transcription.request({ model: openai.transcription("gpt-4o-transcribe"), audio })
-```
-
-The request namespace and the selector share one word (`Image.request` + `.image(...)`). That redundancy is accepted: a callable facade returning a lazily resolved ref would be a second way to construct the same model, and the type machinery to infer `providerOptions` through it is not worth one word. Where a provider has two APIs for one modality, the selectors stay explicit (`openai.chat`, a future `google.imagen`), and one default per modality per provider is part of the facade definition (OpenAI image → Images API, Google image → Gemini-native since Imagen on the Gemini API shuts down 2026-08-17). Provider package entrypoints keep `model(modelID, settings)` per modality-specific path, e.g. `@opencode/ai/providers/openai/responses`.
-
-### `Media` — the asset type
-
-Replaces `MediaPart.data: string | Uint8Array`, `ImageInput`, `GeneratedImage`, and aligns `Tool.FileContent`.
-
-```ts
-import { Media } from "@opencode/ai"
-
-Media.Source =
-  | { type: "bytes";  data: Uint8Array; mediaType: string }
-  | { type: "base64"; data: string;     mediaType: string }
-  | { type: "url";    url: string; mediaType?: string; expiresAt?: number }
-  | { type: "ref";    provider: ProviderID; id: string; mediaType?: string }   // file_id, gs://, runway://, prior generation
-
-class Media.Asset {
-  readonly source: Media.Source
-  readonly mediaType: string                    // always resolved (sniffed when the provider omits it)
-  readonly kind: "image" | "video" | "audio" | "document" | "other"
-  readonly info?: { width?; height?; durationSeconds?; sampleRate?; channels?; encoding?; format? }
-  readonly expiresAt?: number
-  readonly providerMetadata?: ProviderMetadata
-  readonly headers?: Record<string, string>     // transient download credentials (Veo); never in source/JSON
-
-  bytes(): Effect<Uint8Array, AIError, RequestExecutor.Service>   // downloads/decodes lazily, cached
-  base64(): Effect<string, AIError, RequestExecutor.Service>
-  dataUrl(): Effect<string, AIError, RequestExecutor.Service>
-  materialize(): Effect<Media.Asset, AIError, RequestExecutor.Service>  // url/ref → bytes, before the URL dies
-}
-
-Media.bytes(data, mediaType?)      Media.base64(data, mediaType?)
-Media.url(url, options?)           Media.ref(provider, id)
-Media.file(path)                   // Bun/Node: reads + sniffs; Effect FileSystem variant for layers
-Media.write(asset, path)           // convenience, uses FileSystem
-```
-
-Raw-PCM outputs (Gemini TTS, Cartesia raw, Deepgram WS) carry `info.encoding/sampleRate/channels` because there is no container header.
-
-### Modality namespaces
-
-Each namespace mirrors `LLM` exactly.
-
-```ts
-import { Image, Video, Speech, Transcription } from "@opencode/ai"
-import { OpenAI, Google, ElevenLabs, Fal } from "@opencode/ai/providers"
-```
-
-#### Image
-
-```ts
-const request = Image.request({
-  model: openai.image("gpt-image-2"),
-  prompt: "A robot tending a rooftop garden",
-  images: [Media.file("./ref.png")],           // references / edit sources
-  mask: Media.file("./mask.png"),
-  n: 2,
-  size: "1536x1024",                            // or aspectRatio: "3:2"
-  seed: 7,
-  format: "webp",
-  providerOptions: { quality: "high", background: "transparent" },   // typed per model
-})
-
-const response = yield* Image.generate(request)   // ImageResponse
-response.image                                    // Media.Asset (first)
-response.images                                   // Media.Asset[]
-response.usage                                    // Usage union (see below)
-response.notices                                  // moderation / partial-result notices
-
-yield* Image.stream(request)                      // Stream<ImageEvent>
-// ImageEvent: generation-queued | generation-progress | image-partial { index, image } | image { index, image } | finish { usage }
-```
-
-Editing is not a separate function; `images`/`mask` on the request select the edit path in the route (OpenAI `/images/edits`, Gemini multimodal parts, xAI `/images/edits`). Routes that cannot honor `mask` fail with `Unsupported`.
-
-#### Video
-
-Shipped in phase 2 (`src/video.ts`, `src/video-client.ts`, protocols `google-video`, `xai-video`, `fal-video`, `runway-video`).
-
-```ts
-const request = Video.request({
-  model: google.video("veo-3.1-generate-preview"),
-  prompt: "Panning wide shot of a calico kitten sleeping in the sunshine",
-  frames: { first: Media.file("./start.png"), last: Media.file("./end.png") },
-  references: [Media.file("./style.png")],
-  video: Media.bytes(previous, "video/mp4"),    // edit / extend source
-  durationSeconds: 8,
-  aspectRatio: "16:9",
-  resolution: "1080p",
-  audio: true,
-  n: 1,
-  seed: 7,
-  negativePrompt: "text, watermark",            // common, not provider-native
-  providerOptions: { personGeneration: "allow_adult" },
-})
-
-// Simple: wait for it.
-const response = yield* Video.generate(request, { poll: { interval: "10 seconds", timeout: "10 minutes" } })
-response.video                                     // Media.Asset: url with expiresAt (+ transient `headers` for Veo downloads)
-response.usage                                     // credits on Runway; the other three report none
-response.notices                                   // Veo raiMediaFilteredReasons → filtered, xAI respect_moderation → moderated
-yield* response.video.materialize()                // pull bytes before the URL expires
-
-// Explicit generation control.
-const generation = yield* Video.start(request)     // Generation<VideoResponse>
-generation.id; generation.status; generation.progress; generation.position; generation.token
-yield* generation.await({ poll })                  // VideoResponse
-yield* generation.cancel()                         // fal PUT cancel_url, Runway DELETE /tasks/{id}; no-op for Veo and xAI
-
-// Resume from another process. The token is validated against the route's codec and refreshed once.
-const resumed = yield* Video.resume(model, JSON.parse(saved))
-
-// Progress as a stream.
-yield* Video.stream(request, { poll })             // Stream<VideoEvent>: generation-queued { id, position } | generation-progress { id, progress } | video { index, video } | finish { usage, notices }
-```
-
-Tokens are route-owned JSON: Veo `{ operation }`, xAI `{ requestID }`, Runway `{ taskID }`, fal
-`{ requestID, statusURL, responseURL, cancelURL }` (fal's follow-up URLs are authoritative and absolute). Common-field
-lowering per provider: Veo takes inline media only and rejects `audio: false` and `n > 1`; xAI rejects `seed` and
-`negativePrompt` and routes a `video` input to edits or (`providerOptions.mode: "extend"`) extensions; fal rejects
-`durationSeconds`, `references`, and `frames.last` because the field names and enums differ per model; Runway passes
-`aspectRatio` through as its pixel `ratio` and rejects `n`.
-
-Deferred: `Video.complete(model, token, webhook)` (finish from a webhook payload without polling) and provider poll
-hints (none of the four providers emit one). Later providers: Luma, Kling, MiniMax, Replicate.
-
-#### Speech (TTS)
-
-```ts
-const request = Speech.request({
-  model: elevenlabs.speech("eleven_v3"),
-  text: "Hello from OpenCode.",
-  voice: "JBFqnCBsd6RMkjVDRZzb",                  // name, uuid, or { id } — provider-normalized
-  format: "mp3",                                   // mp3 | wav | pcm | opus | aac | flac | (string & {})
-  speed: 1.0,
-  language: "en",
-  instructions: "Warm, unhurried.",
-  providerOptions: { stability: 0.5 },
-})
-
-const response = yield* Speech.generate(request)   // SpeechResponse: audio: Media.Asset, timestamps?, usage
-yield* Speech.stream(request)                      // Stream<SpeechEvent>: audio-delta { chunk } | timestamps { words } | finish
-```
-
-Streaming TTS is first-class on day one: OpenAI `stream_format: sse`, ElevenLabs `/stream`, Cartesia SSE, Deepgram chunked. Input-streaming TTS (WS, text arrives incrementally) is a later `Speech.session(...)` scoped resource, not part of `generate`.
-
-#### Transcription (STT)
-
-```ts
-const request = Transcription.request({
-  model: openai.transcription("gpt-4o-transcribe"),
-  audio: Media.file("./call.wav"),
-  language: "en",
-  prompt: "Names: Shoubhit, OpenCode.",
-  timestamps: "word",                              // none | segment | word
-  diarize: true,
-  providerOptions: { chunkingStrategy: "auto" },
-})
-
-const response = yield* Transcription.generate(request)
-response.text; response.segments; response.words; response.language; response.durationSeconds
-yield* Transcription.stream(request)               // Stream<TranscriptionEvent>: text-delta | segment | finish
-```
-
-Realtime STT over WebSocket is the same future `session` shape as input-streaming TTS.
-
-### `Generation` — shared async execution
-
-```ts
-class Generation<Response> {
-  readonly id: string
-  readonly route: GenerationRoute<Response>        // token-free: { status, result, cancel?: Effect; pollHint? } closed over the decoded token
-  readonly token: unknown                          // route-owned serializable JSON
-  readonly status: "queued" | "running" | "completed" | "failed" | "cancelled" | "expired"
-  readonly progress?: number                       // 0..1, normalized
-  readonly position?: number
-  readonly expiresAt?: number
-  refresh(): Effect<Generation<Response>, AIError>
-  result(): Effect<Response, AIError>
-  await(options?: AwaitOptions): Effect<Response, AIError>
-  cancel(): Effect<void, AIError>
-  events(options?: AwaitOptions): Stream<GenerationEvent, AIError>   // fails with Timeout past poll.timeout, checked per observation
-}
-
-AwaitOptions = { poll?: Poll }
-Poll = { interval?: Duration; timeout?: Duration; schedule?: Schedule }   // route may override from provider hints (`openai-poll-after-ms`)
-```
-
-`Generation` is not video-specific. Image routes on BFL, fal, and Replicate are queued; `Image.start` exists for them. A route declares itself `inline` or `queued`; `generate` on a queued route is `start` then `await`.
-
-### Usage
-
-```ts
-Usage =
-  | { type: "tokens"; input; output; total; details? }
-  | { type: "seconds"; seconds }
-  | { type: "characters"; characters }
-  | { type: "credits"; credits }
-  | { type: "compute"; seconds }
-```
-
-Header-only usage (ElevenLabs `character-cost`, Deepgram `dg-char-count`) is lifted into `usage` by the route.
-
-### Promise API — `@opencode/ai/promise`
-
-Mirrors the `packages/plugin/src/effect` and `packages/plugin/src/promise` split that already exists in this repo. One mechanism for LLM and media.
-
-```ts
-import { AI } from "@opencode/ai/promise"
-
-const ai = AI.make()                                // ManagedRuntime over RequestExecutor.fetchLayer + all clients
-// AI.make({ layer }) to inject a custom executor / recorder / middleware
-
-const image = await ai.image.generate({ model, prompt })
-await image.image.bytes()
-
-for await (const event of ai.speech.stream({ model, text, voice })) { … }
-
-const generation = await ai.video.start({ model, prompt })
-const video = await generation.await({ poll: { interval: 10_000 }, signal })
-const resumed = ai.video.resume(model, JSON.parse(saved))
-
-const text = await ai.llm.generate({ model, prompt })   // closes today's gap: LLM has no promise API either
-for await (const event of ai.llm.stream(request)) { … }
-
-await ai.dispose()
-```
-
-Streams become `AsyncIterable` via `Stream.toAsyncIterable`. `AIError` is thrown as-is. `AbortSignal` maps to interruption. Nothing in `src/*` except this entrypoint knows about promises.
-
-### Providers
-
-Existing facades gain per-modality selectors; the modality routes each facade provides:
-
-| Facade | llm | image | video | speech | transcription | other |
-|---|---|---|---|---|---|---|
-| `OpenAI` | responses (default), chat | Images API | Sora (deprecated 2026-09-24) | ✓ | ✓ | |
-| `Google` | Gemini | Gemini-native (default), `imagen` | Veo | Gemini TTS | Gemini transcribe | |
-| `XAI` | ✓ | ✓ | ✓ | | | |
-| `ElevenLabs` | | | | ✓ | Scribe | soundEffect, music |
-| `Fal` | | ✓ | ✓ | | | |
-| `Replicate`, `Runway`, `Luma`, `Kling`, `MiniMax`, `Deepgram`, `Cartesia`, `AssemblyAI`, `BlackForestLabs`, `Stability` | | per provider | | | | |
-
-New facades follow the existing one-file-per-provider rule. Package entrypoints are modality-specific, such as `@opencode/ai/providers/openai/images`, and return the concrete model.
-
-`ImageModel<Options>` already gives typed `providerOptions` per model; `VideoModel`, `SpeechModel`, `TranscriptionModel` follow the same generic. A shared `MediaModel` union is what `Generation` and the promise client key on.
-
-### Routes and protocols
-
-Media does not fit the LLM four-axis route (SSE frames → event state machine) except for streaming TTS/STT. Reuse `Endpoint`, `Auth`, `Framing`, `RequestExecutor`, and add media protocol kinds:
-
- `MediaProtocol.inline` — `body.from(request)` (JSON, multipart, or query), `response.decode(response)` (JSON, or binary body → `Media.Asset`).
- `MediaProtocol.queued` — `start` (body + decode to `{ token, snapshot }`), `status`, `result`, optional `cancel`, `pollHint`, and a `token` codec. `result` is always a separate GET (against the status document for Veo/xAI/Runway, fal's `response_url` otherwise) so `await` after `start` and after `resume` share one path. `PollContext.auth` hands the auth headers the route sent to the protocol for output URLs that need them (Veo downloads); they become transient `Media.Asset.headers`, never part of `source`. There is no separate `download` step: `Media.Asset.bytes()` downloads through the executor with those headers. `MediaRoute.inline(...)` / `MediaRoute.queued(...)` compose each kind with endpoint and auth; the queued route decodes the token once and hands `Generation` a token-free `{ status, result, cancel? }`.
- `MediaProtocol.stream` — framing + `step` state machine emitting modality events, same discipline as LLM protocols.
-
-`MediaRoute.inline` / `MediaRoute.queued` compose one protocol kind with endpoint/auth; `ImageModel`/`VideoModel` share the `MediaModel` base (`src/media-model.ts`).
-
-### LLM integration
-
- `MediaPart` becomes `{ type: "media"; media: Media.Asset; … }` so protocols branch on `kind` and can pass `url`/`ref` sources through natively (OpenAI `image_url`, Gemini `fileData`).
- New `LLMEvent`s: `media { media: Media.Asset }` so Gemini inline image output is first-class instead of dropped. OpenAI Responses `image_generation_call` keeps its single carrier — the provider-executed `tool-result` with `file` content — because Core consumes hosted tool-result content today and has no `media` event handling yet; it switches to the `media` carrier when Core adopts the event, so the image is never emitted twice.
- `Message.assistant([...])` accepts media parts; Gemini multi-turn image editing replays them.
- `Tool.FileContent` aligns with `Media.Source`.
-
-## Decisions
-
-All settled:
-
-1. **Per-modality selectors** (`openai.image(id)`, `.video`, `.speech`, `.transcription`) name media models, mirroring `openai.responses(id)`. The one-word overlap with the request namespace is accepted over a callable-facade `ModelRef` as a second construction path.
-2. **`providerOptions` everywhere** (rename current `Image.options`) for consistency with LLM.
-3. **No hidden `n` fan-out.** `n` lowers natively; routes that cannot do `n > 1` fail typed. Callers use `Effect.all` / `Promise.all` explicitly.
-4. **Errors over warnings** for unsupported common fields; `notices` for provider-side partial results only.
-5. **`Media.Asset` is a class** (lazy bytes, cached) with `Media.Source` as the serializable Schema for wire/persistence. `Asset.from(source)` / `asset.source` round-trip losslessly. Same pattern as `LanguageModel` today.
-6. **Promise entrypoint**: `@opencode/ai/promise` exporting `AI.make(options?: { layer? })` plus a module-level default `ai` for scripts, covering LLM too.
-7. **Modality set for v1**: `Image`, `Video`, `Speech`, `Transcription`. `Music`/`SoundEffect` and `session` (bidirectional WS, realtime) are designed-for but deferred.
-8. **Sora is skipped** (API shuts down 2026-09-24). Video launches with Veo, xAI, fal, Runway.
-
-## Build order
-
-Foundation + Image ship together as the reference implementation, serially. Video, Speech, and Transcription then proceed in parallel on separate branches. Image jobs and partial streaming come last, after Video has hardened `Generation`.
-
-## Phasing
-
-1. **Foundation** — per-modality selectors, `Media`, `Generation`, `Poll`, `Usage` union, `MediaProtocol` kinds, `@opencode/ai/promise` with `llm` + `image`. Port the five existing image protocols onto it. Unify `MediaPart` and add the `media` LLM event (fixes Gemini image output being dropped).
-2. **Video** — ✅ Veo, xAI, fal, Runway shipped (`MediaProtocol.queued`, `Video.start/generate/resume/stream`, promise `ai.video`). Deferred: `Video.complete` (webhooks), Luma, Kling, MiniMax, Replicate.
-3. **Speech + Transcription** — OpenAI, ElevenLabs, Gemini TTS, Deepgram, Cartesia, AssemblyAI. Streaming TTS from the start.
-4. **Image queued routes and partials** — BFL, fal, Replicate, Stability; OpenAI `partial_images` streaming.
-5. **Later** — ElevenLabs music/SFX, Lyria, `Speech.session` / `Transcription.session`, realtime.
-
-Core adoption (session attachments beyond png/jpeg/gif/webp/pdf, image-generation tool, TUI rendering) comes after phase 1 and is a Core concern.
@@ -1,19 +1,7 @@
 import { Config, Effect, Formatter, Layer, Schema, Stream } from "effect"
-import { NodeFileSystem } from "@effect/platform-node"
-import {
-  Image,
-  ImageClient,
-  LLM,
-  LLMClient,
-  LLMRequest,
-  Media,
-  Message,
-  ProviderID,
-  Tool,
-  ToolRuntime,
-} from "@opencode/ai"
-import { Route, Auth, Endpoint, Framing, Protocol, RequestExecutor } from "@opencode/ai/route"
-import { OpenAI } from "@opencode/ai/providers"
+import { LLM, LLMClient, LLMRequest, Message, ProviderID, Tool, ToolRuntime } from "@opencode-ai/ai"
+import { Route, Auth, Endpoint, Framing, Protocol, RequestExecutor } from "@opencode-ai/ai/route"
+import { OpenAI } from "@opencode-ai/ai/providers"

 /**
 * A runnable walkthrough of the LLM package use-site API.
@@ -28,18 +16,15 @@ import { OpenAI } from "@opencode/ai/providers"

 const apiKey = Config.redacted("OPENAI_API_KEY")

-// 1. Configure a provider. The configured facade records provider identity,
-// deployment options, authentication, and defaults. Per-modality selectors pick
-// the API: `.responses(...)` / `.chat(...)` for LLM calls and `.image(...)` for
-// image generation.
-const openai = OpenAI.configure({
+// 1. Pick a model. The provider helper records provider identity, protocol
+// choice, capabilities, deployment options, authentication, and defaults.
+const model = OpenAI.configure({
  apiKey,
  generation: { maxTokens: 160 },
  providerOptions: {
    store: false,
  },
-})
-const model = openai.responses("gpt-4o-mini")
+}).model("gpt-4o-mini")

 // 2. Build a provider-neutral request. This is useful when reusing one request
 // across generate and stream examples.
@@ -224,39 +209,18 @@ const FakeEcho = {
  }),
 }

-// 8. Image generation uses the same facade and the same request/generate shape.
-// `response.image` is a `Media.Asset`: bytes decode lazily and are cached, and
-// `Media.write` persists them through the Effect `FileSystem`.
-const generateImage = Effect.gen(function* () {
-  const response = yield* Image.generate({
-    model: openai.image("gpt-image-1-mini"),
-    prompt: "A flat black circle centered on a plain white background.",
-    size: "1024x1024",
-    format: "jpeg",
-    providerOptions: { quality: "low" },
-  })
-
-  console.log("\n== image ==")
-  console.log("media type:", response.image.mediaType)
-  console.log("bytes:", (yield* response.image.bytes()).byteLength)
-  console.log("usage", Formatter.formatJson(response.usage, { space: 2 }))
-  yield* Media.write(response.image, "tutorial-image.jpg").pipe(Effect.provide(NodeFileSystem.layer))
-})
-
 // Provide the LLM runtime and the HTTP request executor once. Keep one path
 // enabled at a time so the tutorial can demonstrate generate, stream, or
 // tool-loop behavior without spending tokens on every example.
 const requestExecutorLayer = RequestExecutor.fetchLayer
 const llmClientLayer = LLMClient.layer.pipe(Layer.provide(requestExecutorLayer))
-const imageClientLayer = ImageClient.layer.pipe(Layer.provide(requestExecutorLayer))

 const program = Effect.gen(function* () {
  // yield* generateOnce
  // yield* streamText
  // yield* generateStructuredObject
  // yield* generateDynamicObject.pipe(Effect.andThen((response) => Effect.sync(() => console.log(response.object))))
-  // yield* generateImage
  yield* streamWithTools
-}).pipe(Effect.provide(Layer.mergeAll(requestExecutorLayer, llmClientLayer, imageClientLayer)))
+}).pipe(Effect.provide(Layer.mergeAll(requestExecutorLayer, llmClientLayer)))

 Effect.runPromise(program)
@@ -1,7 +1,7 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
-  "version": "2.0.14",
-  "name": "@opencode/ai",
+  "version": "1.17.20",
+  "name": "@opencode-ai/ai",
  "type": "module",
  "license": "MIT",
  "scripts": {
@@ -15,24 +15,22 @@
  ],
  "exports": {
    ".": "./src/index.ts",
-    "./promise": "./src/promise.ts",
    "./testing": "./src/testing.ts",
    "./*": "./src/*.ts"
  },
  "devDependencies": {
    "@clack/prompts": "1.0.0-alpha.1",
    "@effect/platform-node": "catalog:",
-    "@opencode/http-recorder": "workspace:*",
+    "@opencode-ai/http-recorder": "workspace:*",
    "@tsconfig/bun": "catalog:",
    "@types/bun": "catalog:",
    "@typescript/native-preview": "catalog:",
    "typescript": "catalog:"
  },
  "dependencies": {
-    "@aws-sdk/credential-providers": "3.1057.0",
    "@smithy/eventstream-codec": "4.2.14",
    "@smithy/util-utf8": "4.2.2",
-    "@opencode/schema": "workspace:*",
+    "@opencode-ai/schema": "workspace:*",
    "aws4fetch": "1.0.20",
    "effect": "catalog:",
    "google-auth-library": "10.5.0"
@@ -1,5 +1,5 @@
 #!/usr/bin/env bun
-import { Script } from "@opencode/script"
+import { Script } from "@opencode-ai/script"
 import { $ } from "bun"
 import { fileURLToPath } from "url"

@@ -7,8 +7,7 @@ import { AwsV4Signer } from "aws4fetch"
 import { Config, ConfigProvider, Effect, FileSystem, PlatformError, Redacted } from "effect"
 import { FetchHttpClient, HttpClient, HttpClientRequest, type HttpClientResponse } from "effect/unstable/http"
 import * as ProviderShared from "../src/protocols/shared"
-import { CloudflareAIGateway } from "../src/providers/cloudflare-ai-gateway.js"
-import { CloudflareWorkersAI } from "../src/providers/cloudflare-workers-ai.js"
+import * as Cloudflare from "../src/providers/cloudflare"

 type Provider = {
  readonly id: string
@@ -104,36 +103,6 @@ const PROVIDERS: ReadonlyArray<Provider> = [
    vars: [{ name: "XAI_API_KEY" }],
    validate: (env) => validateBearer("https://api.x.ai/v1/models", Redacted.make(env.XAI_API_KEY)),
  },
-  {
-    id: "fal",
-    label: "fal",
-    tier: "canary",
-    note: "fal queue video recorded tests",
-    vars: [{ name: "FAL_KEY" }],
-    // fal has no free authenticated list endpoint; a 404 for an unknown request id proves the key was accepted.
-    validate: (env) =>
-      Effect.gen(function* () {
-        const http = yield* HttpClient.HttpClient
-        const response = yield* http.execute(
-          HttpClientRequest.get(
-            "https://queue.fal.run/fal-ai/veo3.1/requests/00000000-0000-0000-0000-000000000000/status",
-          ).pipe(HttpClientRequest.setHeaders({ authorization: `Key ${Redacted.value(Redacted.make(env.FAL_KEY))}` })),
-        )
-        if (response.status === 404) return undefined
-        return yield* responseError(response)
-      }),
-  },
-  {
-    id: "runway",
-    label: "Runway",
-    tier: "canary",
-    note: "Runway task video recorded tests",
-    vars: [{ name: "RUNWAYML_API_SECRET" }],
-    validate: (env) =>
-      validateBearer("https://api.dev.runwayml.com/v1/organization", Redacted.make(env.RUNWAYML_API_SECRET), {
-        "X-Runway-Version": "2024-11-06",
-      }),
-  },
  {
    id: "cloudflare-ai-gateway",
    label: "Cloudflare AI Gateway",
@@ -151,11 +120,11 @@ const PROVIDERS: ReadonlyArray<Provider> = [
    ],
    validate: (env) =>
      validateChat({
-        url: `${CloudflareAIGateway.baseURL({
+        url: `${Cloudflare.aiGatewayBaseURL({
          accountId: env.CLOUDFLARE_ACCOUNT_ID,
          gatewayId: env.CLOUDFLARE_GATEWAY_ID || undefined,
        })}/chat/completions`,
-        token: Redacted.make(envValue(env, CloudflareAIGateway.authEnvVars)),
+        token: Redacted.make(envValue(env, Cloudflare.aiGatewayAuthEnvVars)),
        tokenHeader: "cf-aig-authorization",
        model: "workers-ai/@cf/meta/llama-3.1-8b-instruct",
      }),
@@ -171,8 +140,8 @@ const PROVIDERS: ReadonlyArray<Provider> = [
    ],
    validate: (env) =>
      validateChat({
-        url: `${CloudflareWorkersAI.baseURL({ accountId: env.CLOUDFLARE_ACCOUNT_ID })}/chat/completions`,
-        token: Redacted.make(envValue(env, CloudflareWorkersAI.authEnvVars)),
+        url: `${Cloudflare.workersAIBaseURL({ accountId: env.CLOUDFLARE_ACCOUNT_ID })}/chat/completions`,
+        token: Redacted.make(envValue(env, Cloudflare.workersAIAuthEnvVars)),
        model: "@cf/meta/llama-3.1-8b-instruct",
      }),
  },
@@ -11,8 +11,7 @@
 // Manual `cache: CacheHint` placements on individual parts are preserved and
 // count against the four-breakpoint budget; auto only fills remaining slots.
 import { CacheHint, type CachePolicy, type CachePolicyObject } from "./schema/options.js"
-import { LLMRequest, Message, ToolDefinition, type ContentPart, type ToolEntry } from "./schema/messages.js"
-import { effortUpdate } from "./effort-updates.js"
+import { LLMRequest, Message, ToolDefinition, type ContentPart } from "./schema/messages.js"

 const AUTO: CachePolicyObject = {
  tools: true,
@@ -51,24 +50,18 @@ interface Budget {
  remaining: number
 }

-const markLastTool = (tools: ReadonlyArray<ToolEntry>, hint: CacheHint, budget: Budget): ReadonlyArray<ToolEntry> => {
-  const target = tools.at(-1)
-  if (target === undefined) return tools
-  if (target.type === "namespace") {
-    const nested = markLastTool(target.tools, hint, budget)
-    return nested === target.tools ? tools : [...tools.slice(0, -1), { ...target, tools: nested }]
-  }
-  if (target.cache || budget.remaining === 0) return tools
+const markLastTool = (
+  tools: ReadonlyArray<ToolDefinition>,
+  hint: CacheHint,
+  budget: Budget,
+): ReadonlyArray<ToolDefinition> => {
+  if (tools.length === 0) return tools
+  const last = tools.length - 1
+  if (tools[last]!.cache || budget.remaining === 0) return tools
  budget.remaining -= 1
-  return [...tools.slice(0, -1), new ToolDefinition({ ...target, cache: hint })]
+  return tools.map((tool, i) => (i === last ? new ToolDefinition({ ...tool, cache: hint }) : tool))
 }

-const countToolHints = (tools: ReadonlyArray<ToolEntry>): number =>
-  tools.reduce(
-    (count, tool) => count + (tool.type === "tool" ? (tool.cache === undefined ? 0 : 1) : countToolHints(tool.tools)),
-    0,
-  )
-
 const markSystemBoundaries = (system: LLMRequest["system"], hint: CacheHint, budget: Budget): LLMRequest["system"] => {
  if (system.length === 0) return system
  let changed = false
@@ -122,20 +115,14 @@ const markMessages = (
    return markMessageAt(messages, lastIndexOfRole(messages, "user"), hint, budget)
  if (strategy === "latest-assistant")
    return markMessageAt(messages, lastIndexOfRole(messages, "assistant"), hint, budget)
-  let start = messages.length
-  let remaining = strategy.tail
-  while (remaining > 0 && start > 0) {
-    start -= 1
-    if (effortUpdate(messages[start]!) === undefined) remaining -= 1
-  }
+  const start = Math.max(0, messages.length - strategy.tail)
  let next = messages
-  for (let i = start; i < messages.length; i++)
-    if (effortUpdate(messages[i]!) === undefined) next = markMessageAt(next, i, hint, budget)
+  for (let i = start; i < messages.length; i++) next = markMessageAt(next, i, hint, budget)
  return next
 }

 const countHints = (request: LLMRequest) =>
-  countToolHints(request.tools) +
+  request.tools.reduce((count, tool) => count + (tool.cache === undefined ? 0 : 1), 0) +
  request.system.reduce((count, part) => count + (part.cache === undefined ? 0 : 1), 0) +
  request.messages.reduce(
    (count, message) =>
@@ -1,25 +0,0 @@
-// Changing the top-level reasoning effort invalidates the provider prompt cache. Protocols with a native
-// per-message update keep it frozen and lower `Message.effort(...)` markers instead; other routes strip them.
-import { LLMRequest, type EffortPart, type Message } from "./schema/messages.js"
-
-export const effortUpdate = (message: Message): EffortPart | undefined => {
-  if (message.role !== "system" || message.content.length !== 1) return undefined
-  const part = message.content[0]
-  return part.type === "effort" ? part : undefined
-}
-
-export const stripEffortUpdates = (request: LLMRequest) => {
-  const messages = request.messages.filter((message) => effortUpdate(message) === undefined)
-  return messages.length === request.messages.length ? request : LLMRequest.update(request, { messages })
-}
-
-export const applyEffortUpdates = (request: LLMRequest): LLMRequest =>
-  request.model.route.supportsEffortUpdates?.(request) ? request : stripEffortUpdates(request)
-
-// Reverted or forked history can leave the last marker disagreeing with the requested effort.
-export const resolveEffortUpdates = (request: LLMRequest, current: string | undefined) => {
-  const updates = request.messages.flatMap((message) => effortUpdate(message) ?? [])
-  if (updates.length === 0) return { request, effort: current }
-  if (updates.at(-1)?.effort !== current) return { request: stripEffortUpdates(request), effort: current }
-  return { request, effort: updates[0]?.previous }
-}
@@ -1,29 +0,0 @@
-export { EvaluationClient } from "./experimental/evaluation-client.js"
-export {
-  BooleanAnswer,
-  BooleanQuestion,
-  ChoiceAnswer,
-  ChoiceQuestion,
-  Evaluation,
-  EvaluationAnswer,
-  EvaluationInput,
-  EvaluationModel,
-  EvaluationModelSchema,
-  EvaluationQuestion,
-  EvaluationRequest,
-  EvaluationResponse,
-  EvaluationRounding,
-  ScoreAnswer,
-  ScoreQuestion,
-} from "./experimental/evaluation.js"
-export type {
-  AnswerFor,
-  AnswersFor,
-  EvaluationModelOptions,
-  EvaluationOptions,
-  EvaluationQuestions,
-  EvaluationRequestFor,
-  EvaluationRequestInput,
-  EvaluationResponseFor,
-  EvaluationRoute,
-} from "./experimental/evaluation.js"
@@ -1,96 +0,0 @@
-import { Context, Effect, Layer } from "effect"
-import { RequestExecutor } from "../route/executor.js"
-import { AIError, InvalidProviderOutputError, mergeHttpOptions } from "../schema/index.js"
-import { sanitizeSurrogates } from "../utils/sanitize.js"
-import {
-  type EvaluationOptions,
-  type EvaluationQuestions,
-  type EvaluationRequestFor,
-  type EvaluationResponseFor,
-} from "./evaluation.js"
-
-export type Execute = RequestExecutor.Interface["execute"]
-
-export interface Interface {
-  readonly evaluate: <Options extends EvaluationOptions, const Questions extends EvaluationQuestions>(
-    request: EvaluationRequestFor<Options, Questions>,
-  ) => Effect.Effect<EvaluationResponseFor<Questions>, AIError>
-}
-
-export class Service extends Context.Service<Service, Interface>()("@opencode/AI/Experimental/EvaluationClient") {}
-
-export const evaluate = <Options extends EvaluationOptions, const Questions extends EvaluationQuestions>(
-  request: EvaluationRequestFor<Options, Questions>,
-): Effect.Effect<EvaluationResponseFor<Questions>, AIError, Service> =>
-  Effect.flatMap(Service, (client) => client.evaluate(request))
-
-export const layer: Layer.Layer<Service, never, RequestExecutor.Service> = Layer.effect(
-  Service,
-  Effect.gen(function* () {
-    const executor = yield* RequestExecutor.Service
-    return Service.of({
-      evaluate: (request) =>
-        request.model.route
-          .evaluate(
-            {
-              ...sanitizeSurrogates({
-                ...request,
-                model: undefined,
-                http: mergeHttpOptions(request.model.http, request.http),
-              }),
-              model: request.model,
-            },
-            executor.execute,
-          )
-          .pipe(
-            Effect.flatMap((response) => {
-              const questions = Object.entries(request.questions)
-              if (
-                questions.length === Object.keys(response.answers).length &&
-                questions.every(([id, question]) => {
-                  const answer = response.answers[id]
-                  if (question.type === "boolean") return answer?.type === "boolean"
-                  if (question.type === "choice") {
-                    if (answer?.type !== "choice" || !Object.hasOwn(question.criteria, answer.choice)) return false
-                    if (answer.probabilities === undefined) return true
-                    const keys = Object.keys(question.criteria)
-                    const probabilities = answer.probabilities
-                    return (
-                      Object.keys(probabilities).length === keys.length &&
-                      keys.every((key) => Object.hasOwn(probabilities, key))
-                    )
-                  }
-                  if (answer?.type !== "score" || answer.score < 0 || answer.score > question.criteria.length - 1)
-                    return false
-                  if (answer.probabilities === undefined) return true
-                  const keys = question.criteria.map((_, index) => String(index))
-                  const probabilities = answer.probabilities
-                  return (
-                    Object.keys(probabilities).length === keys.length &&
-                    keys.every((key) => Object.hasOwn(probabilities, key))
-                  )
-                })
-              )
-                return Effect.succeed(response as EvaluationResponseFor<typeof request.questions>)
-              return Effect.fail(
-                new AIError({
-                  reason: new InvalidProviderOutputError({
-                    route: request.model.route.id,
-                    message: "Evaluation answers do not match the requested questions",
-                    cause: response.answers,
-                  }),
-                }),
-              )
-            }),
-          ),
-    })
-  }),
-)
-export const fetchLayer = layer.pipe(Layer.provide(RequestExecutor.fetchLayer))
-
-export const EvaluationClient = {
-  Service,
-  layer,
-  fetchLayer,
-  evaluate,
-} as const
@@ -1,245 +0,0 @@
-import { Effect, Schema } from "effect"
-import {
-  AIError,
-  HttpOptions,
-  InvalidRequestError,
-  ModelID,
-  ProviderID,
-  ProviderMetadata,
-  Usage,
-} from "../schema/index.js"
-import { EvaluationClient, Service, type Execute } from "./evaluation-client.js"
-
-export const EvaluationInput = Schema.Union([Schema.String, Schema.JsonObject, Schema.Array(Schema.Json)])
-export type EvaluationInput = Schema.Schema.Type<typeof EvaluationInput>
-
-const EvaluationCriterion = Schema.NullOr(EvaluationInput)
-const ChoiceCriteria = Schema.Record(Schema.String, EvaluationCriterion).pipe(
-  Schema.refine((x): x is typeof x => Object.keys(x).length > 0, {
-    message: "Choice criteria must be a nonempty option map",
-  }),
-)
-
-export const ChoiceQuestion = Schema.Struct({
-  type: Schema.Literal("choice"),
-  instructions: EvaluationInput,
-  criteria: ChoiceCriteria,
-})
-export type ChoiceQuestion = Schema.Schema.Type<typeof ChoiceQuestion>
-
-export const ScoreQuestion = Schema.Struct({
-  type: Schema.Literal("score"),
-  instructions: EvaluationInput,
-  criteria: Schema.Array(EvaluationCriterion).check(Schema.isMinLength(2)),
-})
-export type ScoreQuestion = Schema.Schema.Type<typeof ScoreQuestion>
-
-export const BooleanQuestion = Schema.Struct({
-  type: Schema.Literal("boolean"),
-  instructions: EvaluationInput,
-  criteria: Schema.optional(
-    Schema.Struct({
-      true: Schema.optional(EvaluationCriterion),
-      false: Schema.optional(EvaluationCriterion),
-    }),
-  ),
-})
-export type BooleanQuestion = Schema.Schema.Type<typeof BooleanQuestion>
-
-export const EvaluationQuestion = Schema.Union([ChoiceQuestion, ScoreQuestion, BooleanQuestion]).pipe(
-  Schema.toTaggedUnion("type"),
-)
-export type EvaluationQuestion = Schema.Schema.Type<typeof EvaluationQuestion>
-export type EvaluationQuestions = Readonly<Record<string, EvaluationQuestion>>
-const EvaluationQuestions = Schema.Record(Schema.String, EvaluationQuestion).pipe(
-  Schema.refine((x): x is typeof x => Object.keys(x).length > 0, {
-    message: "Evaluation questions must be a nonempty map",
-  }),
-)
-
-const Probability = Schema.Number.check(Schema.isBetween({ minimum: 0, maximum: 1 }))
-
-export const ChoiceAnswer = Schema.Struct({
-  type: Schema.Literal("choice"),
-  choice: Schema.String,
-  probabilities: Schema.optional(Schema.Record(Schema.String, Probability)),
-})
-export type ChoiceAnswer = Schema.Schema.Type<typeof ChoiceAnswer>
-
-export const ScoreAnswer = Schema.Struct({
-  type: Schema.Literal("score"),
-  score: Schema.Number,
-  probabilities: Schema.optional(Schema.Record(Schema.String, Probability)),
-})
-export type ScoreAnswer = Schema.Schema.Type<typeof ScoreAnswer>
-
-export const BooleanAnswer = Schema.Struct({
-  type: Schema.Literal("boolean"),
-  probability: Probability,
-})
-export type BooleanAnswer = Schema.Schema.Type<typeof BooleanAnswer>
-
-export const EvaluationAnswer = Schema.Union([ChoiceAnswer, ScoreAnswer, BooleanAnswer]).pipe(
-  Schema.toTaggedUnion("type"),
-)
-export type EvaluationAnswer = Schema.Schema.Type<typeof EvaluationAnswer>
-
-export type AnswerFor<Question extends EvaluationQuestion> = Question extends {
-  readonly type: "choice"
-  readonly criteria: infer Criteria
-}
-  ? {
-      readonly type: "choice"
-      readonly choice: Extract<keyof Criteria, string>
-      readonly probabilities?: Readonly<Record<Extract<keyof Criteria, string>, number>>
-    }
-  : Question extends { readonly type: "score" }
-    ? ScoreAnswer
-    : BooleanAnswer
-
-export type AnswersFor<Questions extends EvaluationQuestions> = {
-  readonly [ID in keyof Questions]: AnswerFor<Questions[ID]>
-}
-
-export type EvaluationOptions = Record<string, unknown>
-
-export interface EvaluationRoute<Options extends EvaluationOptions = EvaluationOptions> {
-  readonly id: string
-  readonly evaluate: (
-    request: EvaluationRequestFor<Options>,
-    execute: Execute,
-  ) => Effect.Effect<EvaluationResponse, AIError>
-}
-
-export class EvaluationModel<Options extends EvaluationOptions = EvaluationOptions> {
-  declare protected readonly _Options: (options: Options) => Options
-  readonly id: ModelID
-  readonly provider: ProviderID
-  readonly route: EvaluationRoute<Options>
-  readonly http?: HttpOptions
-
-  constructor(input: EvaluationModel.Input<Options>) {
-    this.id = input.id
-    this.provider = input.provider
-    this.route = input.route
-    this.http = input.http
-  }
-
-  static make<Options extends EvaluationOptions = EvaluationOptions>(input: EvaluationModel.MakeInput<Options>) {
-    return new EvaluationModel<Options>({
-      id: ModelID.make(input.id),
-      provider: ProviderID.make(input.provider),
-      route: input.route,
-      http: input.http,
-    })
-  }
-}
-
-export namespace EvaluationModel {
-  export interface Input<Options extends EvaluationOptions = EvaluationOptions> {
-    readonly id: ModelID
-    readonly provider: ProviderID
-    readonly route: EvaluationRoute<Options>
-    readonly http?: HttpOptions
-  }
-
-  export interface MakeInput<Options extends EvaluationOptions = EvaluationOptions>
-    extends Omit<Input<Options>, "id" | "provider"> {
-    readonly id: string | ModelID
-    readonly provider: string | ProviderID
-  }
-}
-
-export const EvaluationModelSchema = Schema.declare(
-  (value): value is EvaluationModel => value instanceof EvaluationModel,
-  {
-    expected: "Evaluation.Model",
-  },
-)
-
-export class EvaluationRequest extends Schema.Class<EvaluationRequest>("Evaluation.Request")({
-  model: EvaluationModelSchema,
-  state: EvaluationInput,
-  questions: EvaluationQuestions,
-  options: Schema.optional(Schema.Record(Schema.String, Schema.Unknown)),
-  http: Schema.optional(HttpOptions),
-}) {
-  declare protected readonly _EvaluationRequest: void
-}
-
-export type EvaluationModelOptions<Model> = Model extends EvaluationModel<infer Options> ? Options : never
-
-export type EvaluationRequestFor<
-  Options extends EvaluationOptions = EvaluationOptions,
-  Questions extends EvaluationQuestions = EvaluationQuestions,
-> = Omit<EvaluationRequest, "model" | "questions" | "options"> & {
-  readonly model: EvaluationModel<Options>
-  readonly questions: Questions
-  readonly options?: Options
-}
-
-export type EvaluationRequestInput<
-  Model extends object = EvaluationModel,
-  Questions extends EvaluationQuestions = EvaluationQuestions,
-> = Omit<ConstructorParameters<typeof EvaluationRequest>[0], "model" | "questions" | "options" | "http"> & {
-  readonly model: Model
-  readonly questions: Questions
-  readonly options?: NoInfer<EvaluationModelOptions<Model>>
-  readonly http?: HttpOptions.Input
-} & (Model extends EvaluationModel<EvaluationModelOptions<Model>> ? unknown : never)
-
-export class EvaluationRounding extends Schema.Class<EvaluationRounding>("Evaluation.Rounding")({
-  probabilityDecimals: Schema.optional(Schema.Int),
-  scoreDecimals: Schema.optional(Schema.Int),
-}) {}
-
-export class EvaluationResponse extends Schema.Class<EvaluationResponse>("Evaluation.Response")({
-  model: ModelID,
-  answers: Schema.Record(Schema.String, EvaluationAnswer),
-  usage: Schema.optional(Usage),
-  rounding: Schema.optional(EvaluationRounding),
-  providerMetadata: Schema.optional(ProviderMetadata),
-}) {}
-
-export type EvaluationResponseFor<Questions extends EvaluationQuestions> = Omit<EvaluationResponse, "answers"> & {
-  readonly answers: AnswersFor<Questions>
-}
-
-export function request<const Model extends object, const Questions extends EvaluationQuestions>(
-  input: EvaluationRequestInput<Model, Questions>,
-): EvaluationRequestFor<EvaluationModelOptions<Model>, Questions>
-export function request(input: EvaluationRequest): EvaluationRequest
-export function request(input: EvaluationRequest | EvaluationRequestInput) {
-  if (input instanceof EvaluationRequest) return input
-  return new EvaluationRequest({
-    ...input,
-    model: input.model as unknown as EvaluationModel,
-    http: input.http === undefined ? undefined : HttpOptions.make(input.http),
-  })
-}
-
-export function run<const Model extends object, const Questions extends EvaluationQuestions>(
-  input: EvaluationRequestInput<Model, Questions>,
-): Effect.Effect<EvaluationResponseFor<Questions>, AIError, Service>
-export function run(input: EvaluationRequest): Effect.Effect<EvaluationResponse, AIError, Service>
-export function run(input: EvaluationRequest | EvaluationRequestInput) {
-  return Effect.try({
-    try: () => (input instanceof EvaluationRequest ? input : request(input)),
-    catch: (cause) =>
-      new AIError({
-        reason: new InvalidRequestError({
-          message: cause instanceof Error ? cause.message : String(cause),
-          cause,
-        }),
-      }),
-  }).pipe(
-    Effect.flatMap((request) =>
-      EvaluationClient.evaluate(request as EvaluationRequestFor<EvaluationOptions, EvaluationQuestions>),
-    ),
-  )
-}
-
-export const Evaluation = {
-  request,
-  run,
-} as const
@@ -1,194 +0,0 @@
-import { Effect, Schema } from "effect"
-import { Headers, HttpClientRequest } from "effect/unstable/http"
-import {
-  ChoiceQuestion,
-  EvaluationInput,
-  EvaluationModel,
-  EvaluationResponse,
-  EvaluationRounding,
-  ScoreQuestion,
-  type EvaluationAnswer,
-  type EvaluationOptions,
-} from "./evaluation.js"
-import { Auth, type Definition as AuthDefinition } from "../route/auth.js"
-import {
-  AIError,
-  HttpContext,
-  HttpOptions,
-  InvalidProviderOutputError,
-  InvalidRequestError,
-  ModelID,
-  Usage,
-  mergeJsonRecords,
-} from "../schema/index.js"
-
-const Noul = Schema.Struct({
-  type: Schema.Literal("noul"),
-  instructions: EvaluationInput,
-  criteria: Schema.optional(
-    Schema.Struct({
-      true: Schema.optional(Schema.NullOr(EvaluationInput)),
-      false: Schema.optional(Schema.NullOr(EvaluationInput)),
-    }),
-  ),
-})
-const Question = Schema.Union([
-  ChoiceQuestion.pipe(
-    Schema.refine((x): x is typeof x => Object.keys(x.criteria).length <= 255, {
-      message: "System One Choice questions support at most 255 options",
-    }),
-  ),
-  ScoreQuestion.pipe(
-    Schema.refine((x): x is typeof x => x.criteria.length <= 10, {
-      message: "System One Score questions support at most 10 levels",
-    }),
-  ),
-  Noul,
-])
-const Request = Schema.StructWithRest(
-  Schema.Struct({
-    model: Schema.String,
-    state: EvaluationInput,
-    questions: Schema.Record(Schema.String, Question),
-  }),
-  [Schema.Record(Schema.String, Schema.Any)],
-)
-
-const Probability = Schema.Number.check(Schema.isBetween({ minimum: 0, maximum: 1 }))
-const NoulAnswer = Schema.Struct({ type: Schema.Literal("noul"), noul: Probability })
-const Choice = Schema.Struct({
-  type: Schema.Literal("choice"),
-  choice: Schema.String,
-  probabilities: Schema.Record(Schema.String, Probability),
-  confidence: Schema.optional(Probability),
-})
-const Score = Schema.Struct({
-  type: Schema.Literal("score"),
-  score: Schema.Number,
-  probabilities: Schema.Record(Schema.String, Probability),
-  legend: Schema.optional(Schema.Record(Schema.String, Schema.Json)),
-  confidence: Schema.optional(Probability),
-})
-const Answer = Schema.Union([NoulAnswer, Choice, Score]).pipe(Schema.toTaggedUnion("type"))
-const NativeUsage = Schema.StructWithRest(
-  Schema.Struct({
-    input_tokens: Schema.optional(Schema.Number),
-    output_tokens: Schema.optional(Schema.Number),
-  }),
-  [Schema.Record(Schema.String, Schema.Unknown)],
-)
-const Response = Schema.Struct({
-  model: Schema.String,
-  answers: Schema.Record(Schema.String, Answer),
-  usage: Schema.optional(NativeUsage),
-  id: Schema.optional(Schema.String),
-  provider: Schema.optional(Schema.String),
-  provider_metadata: Schema.optional(Schema.Record(Schema.String, Schema.Record(Schema.String, Schema.Unknown))),
-})
-
-export interface ModelInput {
-  readonly id: string | ModelID
-  readonly provider: string
-  readonly providerMetadataKey: string
-  readonly auth: AuthDefinition
-  readonly baseURL: string
-  readonly headers?: Record<string, string>
-  readonly http?: HttpOptions
-}
-
-export const model = <Options extends EvaluationOptions = EvaluationOptions>(cfg: ModelInput) =>
-  EvaluationModel.make<Options>({
-    id: cfg.id,
-    provider: cfg.provider,
-    http: cfg.http,
-    route: {
-      id: "system-one",
-      evaluate: (req, send) =>
-        Effect.gen(function* () {
-          const url = new URL(`${cfg.baseURL.replace(/\/$/, "")}/systemone`)
-          Object.entries(req.http?.query ?? {}).forEach(([key, value]) => url.searchParams.set(key, value))
-          const body = yield* Schema.encodeUnknownEffect(Schema.fromJsonString(Request))({
-            ...mergeJsonRecords(req.options, req.http?.body),
-            model: req.model.id,
-            state: req.state,
-            questions: Object.fromEntries(
-              Object.entries(req.questions).map(([id, x]) => [id, x.type === "boolean" ? { ...x, type: "noul" } : x]),
-            ),
-          }).pipe(
-            Effect.mapError(
-              (cause) => new AIError({ reason: new InvalidRequestError({ message: cause.message, cause }) }),
-            ),
-          )
-          const headers = yield* Auth.toEffect(cfg.auth)({
-            request: req,
-            method: "POST",
-            url: url.toString(),
-            body,
-            headers: Headers.fromInput({ ...cfg.headers, ...req.http?.headers }),
-          })
-          const res = yield* send(
-            HttpClientRequest.post(url).pipe(
-              HttpClientRequest.setHeaders(headers),
-              HttpClientRequest.bodyText(body, "application/json"),
-            ),
-          )
-          const http = new HttpContext({ url: res.request.url, status: res.status, headers: res.headers })
-          const fail = (message: string, cause: unknown, body?: string) =>
-            new AIError({ reason: new InvalidProviderOutputError({ route: "system-one", message, body, http, cause }) })
-          const text = yield* res.text.pipe(
-            Effect.mapError((cause) => fail("Failed to read the System One response", cause)),
-          )
-          const data = yield* Schema.decodeUnknownEffect(Schema.fromJsonString(Response))(text).pipe(
-            Effect.mapError((cause) => fail("System One returned an invalid response", cause, text)),
-          )
-
-          const confidence: Record<string, number> = {}
-          const legend: Record<string, Record<string, Schema.Json>> = {}
-          const answers = Object.fromEntries(
-            Object.entries(data.answers).map(([id, answer]): [string, EvaluationAnswer] => {
-              if (answer.type === "noul") return [id, { type: "boolean", probability: answer.noul }]
-              if (answer.type === "choice") {
-                if (answer.confidence !== undefined) confidence[id] = answer.confidence
-                return [
-                  id,
-                  {
-                    type: "choice",
-                    choice: answer.choice,
-                    probabilities: answer.probabilities,
-                  },
-                ]
-              }
-              if (answer.confidence !== undefined) confidence[id] = answer.confidence
-              if (answer.legend !== undefined) legend[id] = answer.legend
-              return [id, { type: "score", score: answer.score, probabilities: answer.probabilities }]
-            }),
-          )
-          const meta = {
-            ...(data.id === undefined ? {} : { responseId: data.id }),
-            ...(data.provider === undefined ? {} : { provider: data.provider }),
-            ...data.provider_metadata?.[cfg.providerMetadataKey],
-            ...(Object.keys(confidence).length === 0 ? {} : { confidence }),
-            ...(Object.keys(legend).length === 0 ? {} : { legend }),
-          }
-          return new EvaluationResponse({
-            model: ModelID.make(data.model),
-            answers,
-            usage: data.usage
-              ? new Usage({
-                  inputTokens: data.usage.input_tokens,
-                  outputTokens: data.usage.output_tokens,
-                  totalTokens:
-                    data.usage.input_tokens === undefined && data.usage.output_tokens === undefined
-                      ? undefined
-                      : (data.usage.input_tokens ?? 0) + (data.usage.output_tokens ?? 0),
-                  providerMetadata: { [cfg.providerMetadataKey]: data.usage },
-                })
-              : undefined,
-            rounding: new EvaluationRounding({ probabilityDecimals: 2, scoreDecimals: 2 }),
-            providerMetadata: Object.keys(meta).length === 0 ? undefined : { [cfg.providerMetadataKey]: meta },
-          })
-        }),
-    },
-  })
-
-export const SystemOne = { model } as const
@@ -1,170 +0,0 @@
-import { Clock, Duration, Effect, Schedule, Schema, Stream } from "effect"
-import { AIError, TimeoutError } from "./schema/errors.js"
-
-export const Status = Schema.Literals(["queued", "running", "completed", "failed", "cancelled", "expired"])
-export type Status = Schema.Schema.Type<typeof Status>
-
-/** Provider-neutral view of one generation observation. */
-export interface Snapshot {
-  readonly id: string
-  readonly status: Status
-  /** Normalized 0..1 when the provider reports progress. */
-  readonly progress?: number
-  readonly position?: number
-  readonly expiresAt?: number
-}
-
-/**
- * Route-owned generation operations for one generation. The media route decodes its serializable token once (from the
- * submission response or a `resume` input) and closes over it, so `Generation` never sees the token's shape.
- */
-export interface Route<Response> {
-  readonly status: Effect.Effect<Snapshot, AIError>
-  readonly result: Effect.Effect<Response, AIError>
-  readonly cancel?: Effect.Effect<void, AIError>
-  /** Provider polling hint (e.g. `openai-poll-after-ms`) that overrides the default interval for the next poll. */
-  readonly pollHint?: (snapshot: Snapshot) => Duration.Duration | undefined
-}
-
-export interface Poll {
-  readonly interval?: Duration.Input
-  readonly timeout?: Duration.Input
-  /** Full override of the polling schedule; `interval` and `pollHint` are ignored when supplied. */
-  readonly schedule?: Schedule.Schedule<unknown, Snapshot>
-}
-
-export interface AwaitOptions {
-  readonly poll?: Poll
-}
-
-export const DEFAULT_POLL_INTERVAL = Duration.seconds(5)
-export const DEFAULT_POLL_TIMEOUT = Duration.minutes(10)
-
-export type Event =
-  | { readonly type: "generation-queued"; readonly id: string; readonly position?: number }
-  | { readonly type: "generation-progress"; readonly id: string; readonly progress?: number }
-  | { readonly type: "generation-finished"; readonly id: string; readonly status: Status }
-
-const TERMINAL: ReadonlySet<Status> = new Set(["completed", "failed", "cancelled", "expired"])
-
-export class Generation<Response> {
-  readonly id: string
-  readonly status: Status
-  readonly progress?: number
-  readonly position?: number
-  readonly expiresAt?: number
-
-  constructor(
-    readonly route: Route<Response>,
-    /** Route-owned serializable JSON; pass it to the modality's `resume` from another process. */
-    readonly token: unknown,
-    snapshot: Snapshot,
-  ) {
-    this.id = snapshot.id
-    this.status = snapshot.status
-    this.progress = snapshot.progress
-    this.position = snapshot.position
-    this.expiresAt = snapshot.expiresAt
-  }
-
-  get snapshot(): Snapshot {
-    return {
-      id: this.id,
-      status: this.status,
-      progress: this.progress,
-      position: this.position,
-      expiresAt: this.expiresAt,
-    }
-  }
-
-  get terminal() {
-    return TERMINAL.has(this.status)
-  }
-
-  refresh(): Effect.Effect<Generation<Response>, AIError> {
-    return this.route.status.pipe(Effect.map((snapshot) => new Generation(this.route, this.token, snapshot)))
-  }
-
-  /** Fetch the result without polling; non-completed terminal generations fail with the provider's terminal body. */
-  result(): Effect.Effect<Response, AIError> {
-    return this.route.result
-  }
-
-  /** Poll until the generation reaches a terminal status, then fetch the result. Fails with a `Timeout` reason on deadline. */
-  await(options?: AwaitOptions): Effect.Effect<Response, AIError> {
-    const timeout = Duration.fromInputUnsafe(options?.poll?.timeout ?? DEFAULT_POLL_TIMEOUT)
-    const settled = this.terminal ? Effect.succeed(this) : this.poll(options?.poll)
-    return settled.pipe(
-      // Non-completed terminal states also go through `result` so the route can surface its provider failure body.
-      Effect.flatMap((generation) => generation.result()),
-      Effect.timeoutOrElse({ duration: timeout, orElse: () => this.timeoutError(timeout) }),
-    )
-  }
-
-  cancel(): Effect.Effect<void, AIError> {
-    return this.route.cancel ?? Effect.void
-  }
-
-  /**
-   * Status observations as a stream, ending after the first terminal observation. Each poll is bounded by the time
-   * remaining until `poll.timeout`, so a hung status request fails the stream instead of stalling it. (`Stream.interruptWhen`
-   * would express this directly but deadlocks under `TestClock` when the source completes while the timer sleeps.)
-   */
-  events(options?: AwaitOptions): Stream.Stream<Event, AIError> {
-    if (this.terminal) return Stream.make(this.event())
-    const timeout = Duration.fromInputUnsafe(options?.poll?.timeout ?? DEFAULT_POLL_TIMEOUT)
-    return Stream.unwrap(
-      Clock.currentTimeMillis.pipe(
-        Effect.map((start) => {
-          const deadline = start + Duration.toMillis(timeout)
-          const refresh = Clock.currentTimeMillis.pipe(
-            Effect.flatMap((now) =>
-              this.refresh().pipe(
-                Effect.timeoutOrElse({
-                  duration: Duration.millis(Math.max(0, deadline - now)),
-                  orElse: () => this.timeoutError(timeout),
-                }),
-              ),
-            ),
-          )
-          return Stream.fromEffectSchedule(refresh, this.schedule(options?.poll)).pipe(
-            Stream.takeUntil((generation) => generation.terminal),
-            Stream.map((generation) => generation.event()),
-          )
-        }),
-      ),
-    )
-  }
-
-  private event(): Event {
-    if (this.terminal) return { type: "generation-finished", id: this.id, status: this.status }
-    if (this.status === "queued") return { type: "generation-queued", id: this.id, position: this.position }
-    return { type: "generation-progress", id: this.id, progress: this.progress }
-  }
-
-  private timeoutError(timeout: Duration.Duration) {
-    return new AIError({
-      reason: new TimeoutError({
-        message: `Generation ${this.id} did not finish within ${Duration.format(timeout)}`,
-        timeoutMs: Duration.toMillis(timeout),
-      }),
-    })
-  }
-
-  private poll(poll: Poll | undefined) {
-    return this.refresh().pipe(
-      Effect.repeat({ schedule: this.schedule(poll), until: (generation) => generation.terminal }),
-    )
-  }
-
-  private schedule(poll: Poll | undefined): Schedule.Schedule<unknown, Generation<Response>> {
-    if (poll?.schedule) return poll.schedule.pipe(Schedule.setInputType<Generation<Response>>())
-    const interval = poll?.interval ?? DEFAULT_POLL_INTERVAL
-    const pollHint = this.route.pollHint
-    const spaced = Schedule.spaced(interval).pipe(Schedule.setInputType<Generation<Response>>())
-    if (!pollHint) return spaced
-    return spaced.pipe(
-      Schedule.modifyDelay((metadata) => Effect.succeed(pollHint(metadata.input.snapshot) ?? interval)),
-    )
-  }
-}
@@ -1,21 +1,15 @@
-import { Context, Effect, Layer, Stream } from "effect"
+import { Context, Effect, Layer } from "effect"
 import { RequestExecutor } from "./route/executor.js"
-import type { AIError } from "./schema/index.js"
-import {
-  responseEvents,
-  type ImageEvent,
-  type ImageOptions,
-  type ImageRequestFor,
-  type ImageResponse,
-} from "./image.js"
+import { mergeHttpOptions, type AIError } from "./schema/index.js"
+import { sanitizeSurrogates } from "./utils/sanitize.js"
+import type { ImageOptions, ImageRequest, ImageRequestFor, ImageResponse } from "./image.js"
+
+export type Execute = RequestExecutor.Interface["execute"]

 export interface Interface {
  readonly generate: <Options extends ImageOptions>(
    request: ImageRequestFor<Options>,
  ) => Effect.Effect<ImageResponse, AIError>
-  readonly stream: <Options extends ImageOptions>(
-    request: ImageRequestFor<Options>,
-  ) => Stream.Stream<ImageEvent, AIError>
 }

 export class Service extends Context.Service<Service, Interface>()("@opencode/ImageClient") {}
@@ -28,27 +22,23 @@ export const generate = <Options extends ImageOptions>(
    return yield* client.generate(request)
  })

-export const stream = <Options extends ImageOptions>(
-  request: ImageRequestFor<Options>,
-): Stream.Stream<ImageEvent, AIError, Service> =>
-  Stream.unwrap(
-    Effect.gen(function* () {
-      const client = yield* Service
-      return client.stream(request)
-    }),
-  )
-
 export const layer: Layer.Layer<Service, never, RequestExecutor.Service> = Layer.effect(
  Service,
  Effect.gen(function* () {
    const executor = yield* RequestExecutor.Service
-    const generate = <Options extends ImageOptions>(request: ImageRequestFor<Options>) =>
-      request.model.route.generate(request, executor.execute)
    return Service.of({
-      generate,
-      // Inline routes have no partial frames yet; the stream is the completed response expanded into events.
-      stream: (request) =>
-        Stream.fromIterableEffect(Effect.map(generate(request), responseEvents)),
+      generate: (request) =>
+        request.model.route.generate(
+          {
+            ...sanitizeSurrogates({
+              ...request,
+              model: undefined,
+              http: mergeHttpOptions(request.model.http, request.http),
+            }),
+            model: request.model,
+          },
+          executor.execute,
+        ),
    })
  }),
 )
@@ -57,5 +47,4 @@ export const ImageClient = {
  Service,
  layer,
  generate,
-  stream,
 } as const
@@ -1,115 +1,134 @@
-import { Effect, Schema, Stream } from "effect"
-import { Media } from "./media.js"
-import { MediaModel, composeRoute, tryRequest } from "./media-model.js"
-import { MediaRoute } from "./route/media.js"
-import type { MediaProtocol } from "./route/media-protocol.js"
-import { AIError, HttpOptions, MediaUsage, ProviderMetadata } from "./schema/index.js"
-import { ImageClient, Service } from "./image-client.js"
+import { Effect, Schema } from "effect"
+import {
+  HttpOptions,
+  InvalidRequestError,
+  AIError,
+  ModelID,
+  ProviderID,
+  ProviderMetadata,
+  Usage,
+} from "./schema/index.js"
+import { ImageClient, Service, type Execute as ImageExecute } from "./image-client.js"

-// ---------------------------------------------------------------------------
-// Model
-// ---------------------------------------------------------------------------
+export interface ImageRoute<Options extends ImageOptions = ImageOptions> {
+  readonly id: string
+  readonly generate: (request: ImageRequestFor<Options>, execute: ImageExecute) => Effect.Effect<ImageResponse, AIError>
+}

 export type ImageOptions = Record<string, unknown>

-export type ImageRoute<Options extends ImageOptions = ImageOptions> = MediaRoute.Route<
-  ImageRequestFor<Options>,
-  ImageResponse
->
+export class ImageModel<Options extends ImageOptions = ImageOptions> {
+  declare protected readonly _Options: (options: Options) => Options
+  readonly id: ModelID
+  readonly provider: ProviderID
+  readonly route: ImageRoute<Options>
+  readonly http?: HttpOptions

-export class ImageModel<Options extends ImageOptions = ImageOptions> extends MediaModel<ImageRoute<Options>, Options> {
-  declare protected readonly _ImageModel: void
-
-  static make<Options extends ImageOptions = ImageOptions>(input: MediaModel.Input<ImageRoute<Options>>) {
-    return new ImageModel<Options>(input)
+  constructor(input: ImageModel.Input<Options>) {
+    this.id = input.id
+    this.provider = input.provider
+    this.route = input.route
+    this.http = input.http
  }

-  /** Compose an inline image protocol with its canonical path into a model for one deployment. */
-  static fromRoute<Options extends ImageOptions = ImageOptions>(
-    route: ImageModel.RouteInput<Options>,
-    input: MediaRoute.ModelInput,
-  ) {
+  static make<Options extends ImageOptions = ImageOptions>(input: ImageModel.MakeInput<Options>) {
    return new ImageModel<Options>({
-      id: input.id,
-      provider: route.provider,
+      id: ModelID.make(input.id),
+      provider: ProviderID.make(input.provider),
+      route: input.route,
      http: input.http,
-      route: composeRoute(MediaRoute.inline, route, input),
    })
  }
 }

 export namespace ImageModel {
-  export type RouteInput<Options extends ImageOptions = ImageOptions> = MediaModel.RouteInput<
-    ImageRequestFor<Options>,
-    MediaProtocol.Inline<ImageRequestFor<Options>, ImageResponse>
-  >
+  export interface Input<Options extends ImageOptions = ImageOptions> {
+    readonly id: ModelID
+    readonly provider: ProviderID
+    readonly route: ImageRoute<Options>
+    readonly http?: HttpOptions
+  }
+
+  export interface MakeInput<Options extends ImageOptions = ImageOptions>
+    extends Omit<Input<Options>, "id" | "provider"> {
+    readonly id: string | ModelID
+    readonly provider: string | ProviderID
+  }
 }

 export const ImageModelSchema = Schema.declare((value): value is ImageModel => value instanceof ImageModel, {
  expected: "Image.Model",
 })

-// ---------------------------------------------------------------------------
-// Request
-// ---------------------------------------------------------------------------
+const ImageBytesInput = Schema.Struct({
+  type: Schema.Literal("bytes"),
+  data: Schema.Uint8Array,
+  mediaType: Schema.String,
+})
+const ImageUrlInput = Schema.Struct({
+  type: Schema.Literal("url"),
+  url: Schema.String,
+})
+const ImageFileIDInput = Schema.Struct({
+  type: Schema.Literal("file-id"),
+  id: Schema.String,
+})
+const ImageFileURIInput = Schema.Struct({
+  type: Schema.Literal("file-uri"),
+  uri: Schema.String,
+  mediaType: Schema.String,
+})

-export type ImageSize = `${number}x${number}`
-export const ImageSize = Schema.declare<ImageSize>(
-  (value): value is ImageSize => typeof value === "string" && /^\d+x\d+$/.test(value),
-  { title: "ImageSize" },
-)
+export const ImageInputSchema = Schema.Union([
+  ImageBytesInput,
+  ImageUrlInput,
+  ImageFileIDInput,
+  ImageFileURIInput,
+]).pipe(Schema.toTaggedUnion("type"))
+export type ImageInput = Schema.Schema.Type<typeof ImageInputSchema>

-export type ImageAspectRatio = Media.AspectRatio
-export const ImageAspectRatio = Media.AspectRatio
-
-export type ImageFormat = "png" | "jpeg" | "webp" | (string & {})
+export const ImageInput = {
+  bytes: (data: Uint8Array, mediaType: string): ImageInput => ({ type: "bytes", data, mediaType }),
+  url: (url: string): ImageInput => ({ type: "url", url }),
+  file: (id: string): ImageInput => ({ type: "file-id", id }),
+  fileUri: (uri: string, mediaType: string): ImageInput => ({ type: "file-uri", uri, mediaType }),
+} as const

 export class ImageRequest extends Schema.Class<ImageRequest>("Image.Request")({
  model: ImageModelSchema,
  prompt: Schema.String,
-  /** Edit sources or style/subject references, in order. */
-  images: Schema.optional(Schema.Array(Media.AssetSchema)),
-  /** Inpainting mask; routes that cannot honor it fail with `UnsupportedOperation`. */
-  mask: Schema.optional(Media.AssetSchema),
-  n: Schema.optional(Schema.Int),
-  size: Schema.optional(ImageSize),
-  aspectRatio: Schema.optional(ImageAspectRatio),
-  seed: Schema.optional(Schema.Number),
-  format: Schema.optional(Schema.String),
-  providerOptions: Schema.optional(Schema.Record(Schema.String, Schema.Unknown)),
+  images: Schema.optional(Schema.Array(ImageInputSchema)),
+  options: Schema.optional(Schema.Record(Schema.String, Schema.Unknown)),
  http: Schema.optional(HttpOptions),
 }) {
  declare protected readonly _ImageRequest: void
 }

-export type ImageRequestFor<Options extends ImageOptions = ImageOptions> = Omit<
-  ImageRequest,
-  "model" | "providerOptions"
-> & {
+export type ImageRequestFor<Options extends ImageOptions = ImageOptions> = Omit<ImageRequest, "model" | "options"> & {
  readonly model: ImageModel<Options>
-  readonly providerOptions?: Options
+  readonly options?: Options
 }

 export type ImageModelOptions<Model> = Model extends ImageModel<infer Options> ? Options : never

-export type ImageRequestInput<Model extends ImageModel = ImageModel> = Omit<
+export type ImageRequestInput<Model extends object = ImageModel> = Omit<
  ConstructorParameters<typeof ImageRequest>[0],
-  "model" | "providerOptions" | "http"
+  "model" | "options" | "http"
 > & {
  readonly model: Model
-  readonly format?: ImageFormat
-  readonly providerOptions?: NoInfer<ImageModelOptions<Model>>
+  readonly options?: NoInfer<ImageModelOptions<Model>>
  readonly http?: HttpOptions.Input
-}
+} & (Model extends ImageModel<ImageModelOptions<Model>> ? unknown : never)

-// ---------------------------------------------------------------------------
-// Response and events
-// ---------------------------------------------------------------------------
+export class GeneratedImage extends Schema.Class<GeneratedImage>("Image.Generated")({
+  mediaType: Schema.String,
+  data: Schema.Union([Schema.String, Schema.Uint8Array]),
+  providerMetadata: Schema.optional(ProviderMetadata),
+}) {}

 export class ImageResponse extends Schema.Class<ImageResponse>("Image.Response")({
-  images: Schema.Array(Media.AssetSchema),
-  usage: Schema.optional(MediaUsage),
-  notices: Schema.optional(Schema.Array(Media.Notice)),
+  images: Schema.Array(GeneratedImage),
+  usage: Schema.optional(Usage),
  providerMetadata: Schema.optional(ProviderMetadata),
 }) {
  get image() {
@@ -117,43 +136,7 @@ export class ImageResponse extends Schema.Class<ImageResponse>("Image.Response")
  }
 }

-export const ImageOutputEvent = Schema.Struct({
-  type: Schema.tag("image"),
-  index: Schema.Number,
-  image: Media.AssetSchema,
-}).annotate({ identifier: "Image.Event.Image" })
-
-export const ImageFinishEvent = Schema.Struct({
-  type: Schema.tag("finish"),
-  usage: Schema.optional(MediaUsage),
-  notices: Schema.optional(Schema.Array(Media.Notice)),
-  providerMetadata: Schema.optional(ProviderMetadata),
-}).annotate({ identifier: "Image.Event.Finish" })
-
-const imageEventTagged = Schema.Union([ImageOutputEvent, ImageFinishEvent]).pipe(Schema.toTaggedUnion("type"))
-export const ImageEvent = Object.assign(imageEventTagged, {
-  is: {
-    image: imageEventTagged.guards.image,
-    finish: imageEventTagged.guards.finish,
-  },
-})
-export type ImageEvent = Schema.Schema.Type<typeof imageEventTagged>
-
-/** Inline routes produce every image at once; expand the response into the streaming event shape. */
-export const responseEvents = (response: ImageResponse): ReadonlyArray<ImageEvent> => [
-  ...response.images.map((image, index) => ImageOutputEvent.make({ index, image })),
-  ImageFinishEvent.make({
-    usage: response.usage,
-    notices: response.notices,
-    providerMetadata: response.providerMetadata,
-  }),
-]
-
-// ---------------------------------------------------------------------------
-// Request-shaped call API
-// ---------------------------------------------------------------------------
-
-export function request<const Model extends ImageModel>(
+export function request<const Model extends object>(
  input: ImageRequestInput<Model>,
 ): ImageRequestFor<ImageModelOptions<Model>>
 export function request(input: ImageRequest): ImageRequest
@@ -161,30 +144,29 @@ export function request(input: ImageRequest | ImageRequestInput) {
  if (input instanceof ImageRequest) return input
  return new ImageRequest({
    ...input,
+    model: input.model as unknown as ImageModel,
    http: input.http === undefined ? undefined : HttpOptions.make(input.http),
  })
 }

-const requestEffect = (input: ImageRequest | ImageRequestInput) => tryRequest(() => request(input))
-
-export function generate<const Model extends ImageModel>(
+export function generate<const Model extends object>(
  input: ImageRequestInput<Model>,
 ): Effect.Effect<ImageResponse, AIError, Service>
 export function generate(input: ImageRequest): Effect.Effect<ImageResponse, AIError, Service>
 export function generate(input: ImageRequest | ImageRequestInput) {
-  return requestEffect(input).pipe(Effect.flatMap((request) => ImageClient.generate(request)))
-}
-
-export function stream<const Model extends ImageModel>(
-  input: ImageRequestInput<Model>,
-): Stream.Stream<ImageEvent, AIError, Service>
-export function stream(input: ImageRequest): Stream.Stream<ImageEvent, AIError, Service>
-export function stream(input: ImageRequest | ImageRequestInput) {
-  return Stream.unwrap(requestEffect(input).pipe(Effect.map((request) => ImageClient.stream(request))))
+  return Effect.try({
+    try: () => (input instanceof ImageRequest ? input : request(input)),
+    catch: (error) =>
+      new AIError({
+        reason: new InvalidRequestError({
+          message: error instanceof Error ? error.message : String(error),
+          cause: error,
+        }),
+      }),
+  }).pipe(Effect.flatMap((request) => ImageClient.generate(request as unknown as ImageRequestFor<ImageOptions>)))
 }

 export const Image = {
  request,
  generate,
-  stream,
 } as const
@@ -11,53 +11,9 @@ export type {
  Service as LLMClientService,
 } from "./route/client.js"
 export * from "./schema/index.js"
-export {
-  ImageAspectRatio,
-  ImageEvent,
-  ImageModel,
-  ImageModelSchema,
-  ImageRequest,
-  ImageResponse,
-  ImageSize,
-} from "./image.js"
-export type {
-  ImageFormat,
-  ImageModelOptions,
-  ImageOptions,
-  ImageRequestFor,
-  ImageRequestInput,
-  ImageRoute,
-} from "./image.js"
+export { GeneratedImage, ImageInput, ImageInputSchema, ImageModel, ImageRequest, ImageResponse } from "./image.js"
+export type { ImageModelOptions, ImageOptions, ImageRequestFor, ImageRequestInput, ImageRoute } from "./image.js"
 export { Image } from "./image.js"
-export { VideoClient } from "./video-client.js"
-export {
-  VideoAspectRatio,
-  VideoEvent,
-  VideoFrames,
-  VideoModel,
-  VideoModelSchema,
-  VideoRequest,
-  VideoResponse,
-} from "./video.js"
-export type {
-  VideoModelOptions,
-  VideoOptions,
-  VideoRequestFor,
-  VideoRequestInput,
-  VideoResolution,
-  VideoRoute,
-} from "./video.js"
-export { Video } from "./video.js"
-export { Media } from "./media.js"
-export { Generation } from "./generation.js"
-export type {
-  AwaitOptions as GenerationAwaitOptions,
-  Event as GenerationEvent,
-  Poll,
-  Route as GenerationRoute,
-  Snapshot as GenerationSnapshot,
-  Status as GenerationStatus,
-} from "./generation.js"
 export { Tool, ToolFailure, toDefinitions } from "./tool.js"
 export { ToolRuntime } from "./tool-runtime.js"
 export type { DispatchResult as ToolDispatchResult, ToolSettlement } from "./tool-runtime.js"
@@ -12,10 +12,9 @@ import {
  LanguageModel,
  SystemPart,
  ToolChoice,
-  ToolEntry,
+  ToolDefinition,
  type ContentPart,
  type LanguageModelProviderOptions,
-  type ToolEntryInput,
 } from "./schema/index.js"
 import { make as makeTool, toDefinitions, type ToolSchema } from "./tool.js"

@@ -28,7 +27,7 @@ export type RequestInput<SelectedLanguageModel extends LanguageModel = LanguageM
  readonly system?: string | SystemPart | ReadonlyArray<SystemPart>
  readonly prompt?: string | ContentPart | ReadonlyArray<ContentPart>
  readonly messages?: ReadonlyArray<Message | Message.Input>
-  readonly tools?: ReadonlyArray<ToolEntryInput>
+  readonly tools?: ReadonlyArray<ToolDefinition.Input>
  readonly toolChoice?: ToolChoice.Input
  readonly generation?: GenerationOptions.Input
  readonly providerOptions?: NoInfer<LanguageModelProviderOptions<SelectedLanguageModel>>
@@ -57,7 +56,7 @@ export const request = <const SelectedLanguageModel extends LanguageModel>(
    ...rest,
    system: SystemPart.content(requestSystem),
    messages: [...(messages?.map(Message.make) ?? []), ...(prompt === undefined ? [] : [Message.user(prompt)])],
-    tools: tools?.map(ToolEntry.make) ?? [],
+    tools: tools?.map(ToolDefinition.make) ?? [],
    toolChoice: requestToolChoice ? ToolChoice.make(requestToolChoice) : undefined,
    generation: requestGeneration === undefined ? undefined : GenerationOptions.make(requestGeneration),
    providerOptions: requestProviderOptions,
@@ -1,74 +0,0 @@
-import { Effect } from "effect"
-import { Endpoint } from "./route/endpoint.js"
-import type { MediaRoute } from "./route/media.js"
-import type { MediaProtocol } from "./route/media-protocol.js"
-import { AIError, HttpOptions, InvalidRequestError, ModelID, ProviderID } from "./schema/index.js"
-
-/**
- * What every media model carries: ids, the configured route, and deployment `http` overlays. Modality classes
- * (`ImageModel`, `VideoModel`) extend it with their route type and a nominal marker so one cannot stand in for the
- * other in requests.
- */
-export class MediaModel<Route, Options> {
-  declare protected readonly _Options: (options: Options) => Options
-  readonly id: ModelID
-  readonly provider: ProviderID
-  readonly route: Route
-  readonly http?: HttpOptions
-
-  constructor(input: MediaModel.Input<Route>) {
-    this.id = ModelID.make(input.id)
-    this.provider = ProviderID.make(input.provider)
-    this.route = input.route
-    this.http = input.http
-  }
-}
-
-export namespace MediaModel {
-  export interface Input<Route> {
-    readonly id: string | ModelID
-    readonly provider: string | ProviderID
-    readonly route: Route
-    readonly http?: HttpOptions
-  }
-
-  /** A protocol plus its canonical start path; `ModelInput.baseURL` overrides `baseURL` per deployment. */
-  export interface RouteInput<Request extends MediaRoute.MediaRequest, Protocol> {
-    readonly id: string
-    readonly provider: string | ProviderID
-    readonly protocol: Protocol
-    readonly path: Endpoint.EndpointPart<MediaProtocol.Body, Request>
-    readonly baseURL?: string
-    /** Headers the protocol requires on every call, such as a pinned API version; deployment headers win. */
-    readonly headers?: Record<string, string>
-  }
-}
-
-/** Compose a protocol route input with one deployment through `MediaRoute.inline` or `MediaRoute.queued`. */
-export const composeRoute = <Request extends MediaRoute.MediaRequest, Protocol, Route>(
-  compose: (input: MediaRoute.Composition<Request> & { readonly protocol: Protocol }) => Route,
-  route: MediaModel.RouteInput<Request, Protocol>,
-  input: MediaRoute.ModelInput,
-): Route =>
-  compose({
-    id: route.id,
-    provider: route.provider,
-    protocol: route.protocol,
-    endpoint: Endpoint.path(route.path, { baseURL: input.baseURL ?? route.baseURL }),
-    auth: input.auth,
-    headers:
-      route.headers === undefined && input.headers === undefined ? undefined : { ...route.headers, ...input.headers },
-  })
-
-/** Lift a synchronous Schema-class constructor into a typed `InvalidRequest` failure. */
-export const tryRequest = <A>(make: () => A): Effect.Effect<A, AIError> =>
-  Effect.try({
-    try: make,
-    catch: (error) =>
-      new AIError({
-        reason: new InvalidRequestError({
-          message: error instanceof Error ? error.message : String(error),
-          cause: error,
-        }),
-      }),
-  })
@@ -1,323 +0,0 @@
-export * as Media from "./media.js"
-
-import { Effect, Encoding, FileSystem, Schema, SchemaGetter } from "effect"
-import { HttpClientRequest } from "effect/unstable/http"
-import { ProviderID } from "./schema/ids.js"
-import { AIError, HttpContext, InvalidProviderOutputError, InvalidRequestError } from "./schema/errors.js"
-import { ProviderMetadata } from "./schema/options.js"
-import { Service } from "./route/executor-service.js"
-import { detectMediaType, extensionMediaType } from "./utils/media-type.js"
-
-export { detectMediaType } from "./utils/media-type.js"
-
-const OCTET_STREAM = "application/octet-stream"
-
-// ---------------------------------------------------------------------------
-// Source — the serializable wire/persistence form of a media asset
-// ---------------------------------------------------------------------------
-
-const BytesSource = Schema.Struct({
-  type: Schema.Literal("bytes"),
-  data: Schema.Uint8Array,
-  mediaType: Schema.String,
-})
-
-const Base64Source = Schema.Struct({
-  type: Schema.Literal("base64"),
-  data: Schema.String,
-  mediaType: Schema.String,
-})
-
-const UrlSource = Schema.Struct({
-  type: Schema.Literal("url"),
-  url: Schema.String,
-  mediaType: Schema.optional(Schema.String),
-  /** Epoch milliseconds after which the provider no longer serves the URL. */
-  expiresAt: Schema.optional(Schema.Number),
-})
-
-/** A provider-side handle: OpenAI `file_id`, Gemini file URI, `gs://`, `runway://`, or a prior generation id. */
-const RefSource = Schema.Struct({
-  type: Schema.Literal("ref"),
-  provider: ProviderID,
-  id: Schema.String,
-  mediaType: Schema.optional(Schema.String),
-})
-
-export const Source = Schema.Union([BytesSource, Base64Source, UrlSource, RefSource])
-  .pipe(Schema.toTaggedUnion("type"))
-  .annotate({ identifier: "Media.Source" })
-export type Source = Schema.Schema.Type<typeof Source>
-
-// ---------------------------------------------------------------------------
-// Kind, Info, Notice
-// ---------------------------------------------------------------------------
-
-export type AspectRatio = `${number}:${number}`
-export const AspectRatio = Schema.declare<AspectRatio>(
-  (value): value is AspectRatio => typeof value === "string" && /^\d+(?:\.\d+)?:\d+(?:\.\d+)?$/.test(value),
-  { title: "Media.AspectRatio" },
-)
-
-export const Kind = Schema.Literals(["image", "video", "audio", "document", "other"])
-export type Kind = Schema.Schema.Type<typeof Kind>
-
-export const kindOf = (mediaType: string): Kind => {
-  const lower = mediaType.toLowerCase()
-  if (lower.startsWith("image/")) return "image"
-  if (lower.startsWith("video/")) return "video"
-  if (lower.startsWith("audio/")) return "audio"
-  if (lower === "application/pdf" || lower.startsWith("text/")) return "document"
-  return "other"
-}
-
-/** Container-independent facts about the payload; raw PCM audio relies on these because it has no header. */
-export const Info = Schema.Struct({
-  width: Schema.optional(Schema.Number),
-  height: Schema.optional(Schema.Number),
-  durationSeconds: Schema.optional(Schema.Number),
-  sampleRate: Schema.optional(Schema.Number),
-  channels: Schema.optional(Schema.Number),
-  encoding: Schema.optional(Schema.String),
-  format: Schema.optional(Schema.String),
-}).annotate({ identifier: "Media.Info" })
-export type Info = Schema.Schema.Type<typeof Info>
-
-/** A provider-side partial result such as stripped audio or a moderated sample; never a silent drop. */
-export const Notice = Schema.Struct({
-  type: Schema.Literals(["moderated", "filtered", "other"]),
-  message: Schema.String,
-  providerMetadata: Schema.optional(ProviderMetadata),
-}).annotate({ identifier: "Media.Notice" })
-export type Notice = Schema.Schema.Type<typeof Notice>
-
-// ---------------------------------------------------------------------------
-// Asset
-// ---------------------------------------------------------------------------
-
-const invalid = (message: string, cause?: unknown) =>
-  new AIError({ reason: new InvalidRequestError({ message, cause }) })
-
-/** Synchronous view of an inline payload; `undefined` for `url` and `ref` sources, which carry no local bytes. */
-export interface Inline {
-  readonly mime: string
-  readonly base64: string
-  readonly dataUrl: string
-}
-
-export class Asset {
-  readonly source: Source
-  /** Derived from the source: declared type, sniffed magic bytes, then `application/octet-stream`. */
-  readonly mediaType: string
-  readonly kind: Kind
-  readonly info?: Info
-  /** Epoch milliseconds after which a `url` source stops resolving. */
-  readonly expiresAt?: number
-  readonly providerMetadata?: ProviderMetadata
-  /** Transient download credentials for `url` sources; see `Asset.Input.headers`. */
-  readonly headers?: Record<string, string>
-
-  // Derived payload forms are cached on the instance because every protocol lowering re-reads the same payload. The
-  // cache is check-then-set (concurrent first reads of a `url` source may both download) and is never observable
-  // through `source`, so round-tripping through `Media.from(asset.source)` stays lossless.
-  #bytes: Uint8Array | undefined
-  #base64: string | undefined
-
-  constructor(input: Asset.Input) {
-    this.source = input.source
-    this.mediaType =
-      input.source.mediaType ??
-      (input.source.type === "bytes" ? detectMediaType(input.source.data) : undefined) ??
-      OCTET_STREAM
-    this.kind = kindOf(this.mediaType)
-    this.info = input.info
-    this.expiresAt = input.source.type === "url" ? input.source.expiresAt : undefined
-    this.providerMetadata = input.providerMetadata
-    this.headers = input.source.type === "url" ? input.headers : undefined
-  }
-
-  /** Inline payload without effects, for protocols that embed base64 or data URLs directly. */
-  inline(): Inline | undefined {
-    const source = this.source
-    if (source.type !== "bytes" && source.type !== "base64") return undefined
-    const base64 = source.type === "base64" ? source.data : (this.#base64 ??= Encoding.encodeBase64(source.data))
-    const mime = this.mediaType.toLowerCase()
-    return { mime, base64, dataUrl: `data:${mime};base64,${base64}` }
-  }
-
-  /** Decoded payload; downloads `url` sources through the request executor and caches the result. */
-  bytes(): Effect.Effect<Uint8Array, AIError, Service> {
-    return Effect.suspend(() => {
-      const source = this.source
-      if (source.type === "bytes") return Effect.succeed(source.data)
-      if (this.#bytes !== undefined) return Effect.succeed(this.#bytes)
-      if (source.type === "ref")
-        return Effect.fail(invalid(`Cannot materialize provider ref ${source.provider}:${source.id}`))
-      const decoded =
-        source.type === "base64"
-          ? Effect.fromResult(Encoding.decodeBase64(source.data)).pipe(
-              Effect.mapError((cause) => invalid(`Media asset contains invalid base64 data`, cause)),
-            )
-          : download(source, this.headers)
-      return decoded.pipe(Effect.tap((data) => Effect.sync(() => (this.#bytes = data))))
-    })
-  }
-
-  base64(): Effect.Effect<string, AIError, Service> {
-    return Effect.suspend(() => {
-      const source = this.source
-      if (source.type === "base64") return Effect.succeed(source.data)
-      if (this.#base64 !== undefined) return Effect.succeed(this.#base64)
-      return this.bytes().pipe(Effect.map((data) => (this.#base64 = Encoding.encodeBase64(data))))
-    })
-  }
-
-  dataUrl(): Effect.Effect<string, AIError, Service> {
-    return this.base64().pipe(Effect.map((data) => `data:${this.mediaType};base64,${data}`))
-  }
-
-  /**
-   * The `AssetEncoded` JSON form with `bytes` sources as base64, matching `Schema.toCodecJson(AssetSchema)`, so a
-   * plain `JSON.stringify` of messages or events stays lossless and decodes back through the JSON codec.
-   */
-  toJSON() {
-    const source = this.source
-    return {
-      source: source.type === "bytes" ? { ...source, data: Encoding.encodeBase64(source.data) } : source,
-      info: this.info,
-      providerMetadata: this.providerMetadata,
-    }
-  }
-
-  /** Pull `url` sources into owned bytes before the URL expires. Inline sources return themselves. */
-  materialize(): Effect.Effect<Asset, AIError, Service> {
-    if (this.source.type === "bytes" || this.source.type === "base64") return Effect.succeed(this)
-    return this.bytes().pipe(
-      Effect.map((data) =>
-        bytes(data, this.source.mediaType, { info: this.info, providerMetadata: this.providerMetadata }),
-      ),
-    )
-  }
-}
-
-export namespace Asset {
-  export interface Input {
-    readonly source: Source
-    readonly info?: Info
-    readonly providerMetadata?: ProviderMetadata
-    /**
-     * Headers required to download a `url` source, such as the provider API key Veo demands for its file URIs.
-     * They are runtime-only: never part of `source`, `toJSON()`, or `AssetSchema`, so a persisted asset cannot leak
-     * credentials and cannot be downloaded again after a round-trip. Call `materialize()` before persisting.
-     */
-    readonly headers?: Record<string, string>
-  }
-}
-
-/** JSON form of an asset: the serializable `Source` plus caller-supplied metadata. `bytes` sources encode as base64. */
-export const AssetEncoded = Schema.Struct({
-  source: Source,
-  info: Schema.optional(Info),
-  providerMetadata: Schema.optional(ProviderMetadata),
-}).annotate({ identifier: "Media.AssetEncoded" })
-
-const encodeAsset = (asset: Asset): typeof AssetEncoded.Type => ({
-  source: asset.source,
-  info: asset.info,
-  providerMetadata: asset.providerMetadata,
-})
-
-const AssetInstance = Schema.declare((value): value is Asset => value instanceof Asset, {
-  expected: "Media.Asset",
-})
-
-/** `Asset` in the type domain and `AssetEncoded` on the wire, so messages and events holding assets serialize. */
-export const AssetSchema = AssetEncoded.pipe(
-  Schema.decodeTo(AssetInstance, {
-    decode: SchemaGetter.transform((encoded) => new Asset(encoded)),
-    encode: SchemaGetter.transform(encodeAsset),
-  }),
-)
-
-const download = Effect.fn("Media.download")(function* (
-  source: Extract<Source, { readonly type: "url" }>,
-  headers: Record<string, string> | undefined,
-) {
-  const executor = yield* Service
-  const response = yield* executor.execute(
-    HttpClientRequest.get(source.url).pipe(HttpClientRequest.setHeaders(headers ?? {})),
-  )
-  const buffer = yield* response.arrayBuffer.pipe(
-    Effect.mapError(
-      (cause) =>
-        new AIError({
-          reason: new InvalidProviderOutputError({
-            message: `Failed to read media from ${source.url}`,
-            http: new HttpContext({ url: response.request.url, status: response.status, headers: response.headers }),
-            cause,
-          }),
-        }),
-    ),
-  )
-  return new Uint8Array(buffer)
-})
-
-// ---------------------------------------------------------------------------
-// Constructors
-// ---------------------------------------------------------------------------
-
-export type AssetOptions = Omit<Asset.Input, "source">
-
-export const from = (source: Source, options?: AssetOptions) => new Asset({ ...options, source })
-
-export const bytes = (data: Uint8Array, mediaType?: string, options?: AssetOptions) =>
-  from({ type: "bytes", data, mediaType: mediaType ?? detectMediaType(data) ?? OCTET_STREAM }, options)
-
-export const base64 = (data: string, mediaType: string, options?: AssetOptions) =>
-  from({ type: "base64", data, mediaType }, options)
-
-export const url = (
-  value: string,
-  options?: AssetOptions & Omit<Extract<Source, { readonly type: "url" }>, "type" | "url">,
-) => {
-  const { mediaType, expiresAt, ...rest } = options ?? {}
-  return from({ type: "url", url: value, mediaType, expiresAt }, rest)
-}
-
-export const ref = (provider: string | ProviderID, id: string, mediaType?: string, options?: AssetOptions) =>
-  from({ type: "ref", provider: ProviderID.make(provider), id, mediaType }, options)
-
-const DATA_URL = /^data:([^;,]+)(?:;[^,]*)*;base64,(.*)$/s
-
-/** Parse a `data:<mime>;base64,<data>` URL, or `undefined` when the value is not a base64 data URL. */
-export const parseDataUrl = (value: string, options?: AssetOptions) => {
-  const match = DATA_URL.exec(value)
-  return match === null ? undefined : base64(match[2], match[1], options)
-}
-
-/** Parse a `data:<mime>;base64,<data>` URL. Malformed input throws a typed `AIError` because constructors are sync. */
-export const fromDataUrl = (dataUrl: string, options?: AssetOptions) => {
-  const asset = parseDataUrl(dataUrl, options)
-  if (asset === undefined) throw invalid("Media data URLs must contain a MIME type and base64 data")
-  return asset
-}
-
-/** Read a file through `FileSystem` and sniff its media type from magic bytes, then the extension. */
-export const file = (path: string, options?: AssetOptions): Effect.Effect<Asset, AIError, FileSystem.FileSystem> =>
-  Effect.gen(function* () {
-    const fs = yield* FileSystem.FileSystem
-    const data = yield* fs
-      .readFile(path)
-      .pipe(Effect.mapError((cause) => invalid(`Failed to read media file ${path}`, cause)))
-    return bytes(data, detectMediaType(data) ?? extensionMediaType(path), options)
-  })
-
-/** Materialize an asset and write its bytes through `FileSystem`. */
-export const write = (asset: Asset, path: string): Effect.Effect<void, AIError, FileSystem.FileSystem | Service> =>
-  Effect.gen(function* () {
-    const fs = yield* FileSystem.FileSystem
-    const data = yield* asset.bytes()
-    yield* fs
-      .writeFile(path, data)
-      .pipe(Effect.mapError((cause) => invalid(`Failed to write media file ${path}`, cause)))
-  })
@@ -1,134 +0,0 @@
-import { Effect, Layer, ManagedRuntime, Stream } from "effect"
-import type { AwaitOptions, Generation, Snapshot } from "./generation.js"
-import { Image, ImageModel, ImageRequest, type ImageRequestInput } from "./image.js"
-import { ImageClient } from "./image-client.js"
-import { LLM } from "./index.js"
-import { LLMClient } from "./route/client.js"
-import { RequestExecutor } from "./route/executor.js"
-import { LanguageModel, LLMRequest } from "./schema/index.js"
-import type { RequestInput } from "./llm.js"
-import { Video, VideoModel, VideoRequest, type VideoOptions, type VideoRequestInput } from "./video.js"
-import { VideoClient } from "./video-client.js"
-
-/**
- * Promise-first entrypoint for scripts and non-Effect callers. One `ManagedRuntime` hosts the LLM, image, and video
- * clients over a request executor; every method runs the corresponding Effect API and rethrows `AIError` unchanged.
- */
-export interface Options {
-  /** Executor layer; defaults to `RequestExecutor.fetchLayer`. Inject a recorder or middleware here. */
-  readonly layer?: Layer.Layer<RequestExecutor.Service>
-}
-
-export interface RunOptions {
-  readonly signal?: AbortSignal
-}
-
-export type Services =
-  | Layer.Success<typeof LLMClient.layer>
-  | Layer.Success<typeof ImageClient.layer>
-  | Layer.Success<typeof VideoClient.layer>
-  | RequestExecutor.Service
-
-/** Promise view of a `Generation`: its snapshot plus `await`, `refresh`, and `cancel` returning promises. */
-export type GenerationHandle<Response> = Snapshot & {
-  /** Serializable JSON; pass it back to `resume` from another process. */
-  readonly token: unknown
-  readonly await: (options?: AwaitOptions & RunOptions) => Promise<Response>
-  readonly refresh: (options?: RunOptions) => Promise<GenerationHandle<Response>>
-  readonly cancel: (options?: RunOptions) => Promise<void>
-}
-
-const abortEffect = (signal: AbortSignal | undefined) =>
-  signal === undefined
-    ? Effect.never
-    : Effect.callback<void>((resume) => {
-        if (signal.aborted) {
-          resume(Effect.void)
-          return
-        }
-        const onAbort = () => resume(Effect.void)
-        signal.addEventListener("abort", onAbort, { once: true })
-        return Effect.sync(() => signal.removeEventListener("abort", onAbort))
-      })
-
-export const make = (options: Options = {}) => {
-  const runtime = ManagedRuntime.make(
-    Layer.mergeAll(LLMClient.layer, ImageClient.layer, VideoClient.layer).pipe(
-      Layer.provideMerge(options.layer ?? RequestExecutor.fetchLayer),
-    ),
-  )
-
-  /** Run any package Effect (for example `asset.bytes()`) inside this runtime. */
-  const run = <A, E>(effect: Effect.Effect<A, E, Services>, options?: RunOptions) =>
-    runtime.runPromise(effect, { signal: options?.signal })
-
-  const iterate = <A, E>(stream: Stream.Stream<A, E, Services>, options?: RunOptions): AsyncIterable<A> =>
-    Stream.toAsyncIterable(
-      Stream.unwrap(
-        runtime.contextEffect.pipe(
-          Effect.map(
-            (context): Stream.Stream<A, E> =>
-              stream.pipe(Stream.interruptWhen(abortEffect(options?.signal)), Stream.provideContext(context)),
-          ),
-        ),
-      ),
-    )
-
-  const handle = <Response>(generation: Generation<Response>): GenerationHandle<Response> => ({
-    ...generation.snapshot,
-    token: generation.token,
-    await: (options) => run(generation.await({ poll: options?.poll }), options),
-    refresh: (options) => run(generation.refresh(), options).then(handle),
-    cancel: (options) => run(generation.cancel(), options),
-  })
-
-  // The typed `generate`/`stream` overloads take a concrete input or a request, not the union; normalize once here.
-  const llmRequest = (input: RequestInput | LLMRequest) => (input instanceof LLMRequest ? input : LLM.request(input))
-  const imageRequest = (input: ImageRequestInput | ImageRequest) =>
-    input instanceof ImageRequest ? input : Image.request(input)
-  const videoRequest = (input: VideoRequestInput | VideoRequest) =>
-    input instanceof VideoRequest ? input : Video.request(input)
-
-  return {
-    run,
-    llm: {
-      request: LLM.request,
-      generate: <const Model extends LanguageModel>(input: RequestInput<Model> | LLMRequest, options?: RunOptions) =>
-        run(LLM.generate(llmRequest(input)), options),
-      stream: <const Model extends LanguageModel>(input: RequestInput<Model> | LLMRequest, options?: RunOptions) =>
-        iterate(LLM.stream(llmRequest(input)), options),
-    },
-    image: {
-      request: Image.request,
-      generate: <const Model extends ImageModel>(
-        input: ImageRequestInput<Model> | ImageRequest,
-        options?: RunOptions,
-      ) => run(Image.generate(imageRequest(input)), options),
-      stream: <const Model extends ImageModel>(input: ImageRequestInput<Model> | ImageRequest, options?: RunOptions) =>
-        iterate(Image.stream(imageRequest(input)), options),
-    },
-    video: {
-      request: Video.request,
-      start: <const Model extends VideoModel>(input: VideoRequestInput<Model> | VideoRequest, options?: RunOptions) =>
-        run(Video.start(videoRequest(input)), options).then(handle),
-      generate: <const Model extends VideoModel>(
-        input: VideoRequestInput<Model> | VideoRequest,
-        options?: AwaitOptions & RunOptions,
-      ) => run(Video.generate(videoRequest(input), { poll: options?.poll }), options),
-      resume: <Options extends VideoOptions>(model: VideoModel<Options>, token: unknown, options?: RunOptions) =>
-        run(Video.resume(model, token), options).then(handle),
-      stream: <const Model extends VideoModel>(
-        input: VideoRequestInput<Model> | VideoRequest,
-        options?: AwaitOptions & RunOptions,
-      ) => iterate(Video.stream(videoRequest(input), { poll: options?.poll }), options),
-    },
-    dispose: () => runtime.dispose(),
-  }
-}
-
-export type Client = ReturnType<typeof make>
-
-/** Default client over `RequestExecutor.fetchLayer` for scripts; the runtime builds its layer on first use. */
-export const ai = make()
-
-export * as AI from "./promise.js"
@@ -1,92 +0,0 @@
-import { Effect, Schema } from "effect"
-import { Protocol } from "../route/protocol.js"
-import type { LanguageModelCompatibility } from "../schema/index.js"
-import { OpenAIChat } from "./openai-chat.js"
-import { JsonObject, ProviderShared } from "./shared.js"
-import { OpenResponsesOptions } from "./utils/open-responses-options.js"
-
-export type ReasoningEffort = OpenResponsesOptions.ReasoningEffort
-
-const Options = Schema.Struct({
-  reasoningEffort: Schema.optional(OpenResponsesOptions.ReasoningEffort),
-  enableThinking: Schema.optional(Schema.Boolean),
-  thinkingBudget: Schema.optional(Schema.Int),
-  preserveThinking: Schema.optional(Schema.Boolean),
-  clearThinking: Schema.optional(Schema.Boolean),
-  thinking: Schema.optional(
-    Schema.Struct({
-      type: Schema.declare<"adaptive" | "disabled" | (string & {})>(Schema.is(Schema.String)),
-    }),
-  ),
-  toolStream: Schema.optional(Schema.Boolean),
-  parallelToolCalls: Schema.optional(Schema.Boolean),
-  repetitionPenalty: Schema.optional(Schema.Number),
-  responseFormat: Schema.optional(
-    Schema.Struct({
-      type: Schema.declare<"text" | "json_object" | "json_schema" | (string & {})>(Schema.is(Schema.String)),
-      json_schema: Schema.optional(JsonObject),
-    }),
-  ),
-  enableSearch: Schema.optional(Schema.Boolean),
-  searchOptions: Schema.optional(
-    Schema.Struct({
-      forced_search: Schema.optional(Schema.Boolean),
-      search_strategy: Schema.optional(
-        Schema.declare<"turbo" | "max" | "agent" | "agent_max" | (string & {})>(Schema.is(Schema.String)),
-      ),
-      enable_search_extension: Schema.optional(Schema.Boolean),
-    }),
-  ),
-})
-export type OptionsInput = typeof Options.Type
-
-export const compatibility = {
-  maxTokensField: "max_completion_tokens",
-  supportsStore: false,
-  supportsStrictMode: false,
-  reasoningField: "reasoning_content",
-  zaiToolStream: false,
-} satisfies LanguageModelCompatibility
-
-export const protocol = Protocol.make({
-  id: "alibaba-chat",
-  body: {
-    schema: Schema.Struct({
-      ...OpenAIChat.bodyFields,
-      enable_thinking: Options.fields.enableThinking,
-      thinking_budget: Options.fields.thinkingBudget,
-      preserve_thinking: Options.fields.preserveThinking,
-      clear_thinking: Options.fields.clearThinking,
-      thinking: Options.fields.thinking,
-      parallel_tool_calls: Options.fields.parallelToolCalls,
-      repetition_penalty: Options.fields.repetitionPenalty,
-      top_k: Schema.optional(Schema.Int),
-      response_format: Options.fields.responseFormat,
-      enable_search: Options.fields.enableSearch,
-      search_options: Options.fields.searchOptions,
-    }),
-    from: Effect.fn("AlibabaChat.fromRequest")(function* (req) {
-      const opts = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))(req.providerOptions ?? {})
-      return {
-        ...(yield* OpenAIChat.protocol.body.from(req)),
-        enable_thinking: opts.enableThinking,
-        thinking_budget: opts.thinkingBudget,
-        preserve_thinking: opts.preserveThinking,
-        clear_thinking: opts.clearThinking,
-        thinking: opts.thinking,
-        tool_stream: opts.toolStream,
-        parallel_tool_calls:
-          opts.parallelToolCalls ??
-          (req.toolChoice?.disableParallelToolUse === undefined ? undefined : !req.toolChoice.disableParallelToolUse),
-        repetition_penalty: opts.repetitionPenalty,
-        top_k: req.generation?.topK,
-        response_format: opts.responseFormat,
-        enable_search: opts.enableSearch,
-        search_options: opts.searchOptions,
-      }
-    }),
-  },
-  stream: OpenAIChat.protocol.stream,
-})
-
-export * as AlibabaChat from "./alibaba-chat.js"
@@ -1,48 +0,0 @@
-import { Effect, Schema } from "effect"
-import { Protocol } from "../route/protocol.js"
-import { LLMRequest } from "../schema/index.js"
-import { AnthropicMessages } from "./anthropic-messages.js"
-import { ProviderShared } from "./shared.js"
-import { OpenResponsesOptions } from "./utils/open-responses-options.js"
-
-const Options = Schema.Struct({
-  effort: Schema.optional(OpenResponsesOptions.ReasoningEffort),
-  thinking: Schema.optional(
-    Schema.Struct({
-      type: Schema.declare<"enabled" | "disabled" | (string & {})>(Schema.is(Schema.String)),
-      budgetTokens: Schema.optional(Schema.Int),
-      budget_tokens: Schema.optional(Schema.Int),
-    }),
-  ),
-})
-export type OptionsInput = typeof Options.Type & Pick<AnthropicMessages.OptionsInput, "outputConfig">
-export const protocol = Protocol.make({
-  id: "alibaba-messages",
-  body: {
-    schema: Schema.Struct({
-      ...AnthropicMessages.AnthropicMessagesBody.fields,
-      thinking: Schema.optional(Schema.Struct({ type: Schema.String, budget_tokens: Schema.optional(Schema.Int) })),
-    }),
-    from: Effect.fn("AlibabaMessages.fromRequest")(function* (req) {
-      const opts = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))(req.providerOptions ?? {})
-      // Model Studio accepts enabled thinking without Anthropic's mandatory token budget.
-      return {
-        ...(yield* AnthropicMessages.protocol.body.from(
-          LLMRequest.update(req, {
-            providerOptions: { ...req.providerOptions, thinking: undefined },
-          }),
-        )),
-        thinking:
-          opts.thinking === undefined
-            ? undefined
-            : {
-                type: opts.thinking.type,
-                budget_tokens: opts.thinking.budgetTokens ?? opts.thinking.budget_tokens,
-              },
-      }
-    }),
-  },
-  stream: AnthropicMessages.protocol.stream,
-})
-
-export * as AlibabaMessages from "./alibaba-messages.js"
@@ -1,98 +0,0 @@
-import { Effect, Schema } from "effect"
-import { Protocol } from "../route/protocol.js"
-import { OpenResponses } from "./open-responses.js"
-import { JsonObject, optionalArray, ProviderShared } from "./shared.js"
-import { OpenResponsesOptions } from "./utils/open-responses-options.js"
-import { ResponsesHostedTools } from "./utils/responses-hosted-tools.js"
-
-const Options = Schema.Struct({
-  reasoningEffort: Schema.optional(OpenResponsesOptions.ReasoningEffort),
-  enableThinking: Schema.optional(Schema.Boolean),
-  store: Schema.optional(Schema.Boolean),
-  previousResponseId: Schema.optional(Schema.String),
-  conversation: Schema.optional(Schema.String),
-})
-export type OptionsInput = typeof Options.Type
-const NativeTool = Schema.Struct({ type: Schema.Literals(["web_search", "web_extractor", "code_interpreter"]) })
-const WebExtractorItem = Schema.StructWithRest(
-  Schema.Struct({
-    type: Schema.Literal("web_extractor_call"),
-    id: Schema.String,
-    urls: Schema.optional(Schema.Array(Schema.String)),
-    goal: Schema.optional(Schema.String),
-  }),
-  [JsonObject],
-)
-const Body = Schema.Struct({
-  ...OpenResponses.coreFields,
-  input: Schema.Array(Schema.Union([OpenResponses.InputItem, WebExtractorItem])),
-  tools: optionalArray(Schema.Union([OpenResponses.Tool, NativeTool])),
-  enable_thinking: Options.fields.enableThinking,
-  previous_response_id: Options.fields.previousResponseId,
-  conversation: Options.fields.conversation,
-  stream: Schema.Literal(true),
-})
-const adapter = {
-  id: "alibaba-responses",
-  name: "Alibaba Responses",
-  nativeTool: (native) => ProviderShared.validateWith(Schema.decodeUnknownEffect(NativeTool))(native.alibaba),
-  restoreHostedToolItem: (item: unknown) => (Schema.is(WebExtractorItem)(item) ? item : undefined),
-} satisfies OpenResponses.ProviderAdapter
-
-const tools = {
-  web_search_call: { name: "web_search", input: (item) => item.action ?? {} },
-  code_interpreter_call: { name: "code_interpreter", input: (item) => ({ code: item.code }) },
-} satisfies ResponsesHostedTools.Definitions
-
-export const protocol = Protocol.make({
-  id: adapter.id,
-  body: {
-    schema: Body,
-    from: Effect.fn("AlibabaResponses.fromRequest")(function* (req) {
-      const opts = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))(req.providerOptions ?? {})
-      const body = yield* OpenResponses.fromRequestWithAdapter(req, adapter)
-      const choice = body.tool_choice
-      return yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Body))({
-        ...body,
-        enable_thinking: opts.enableThinking,
-        previous_response_id: opts.previousResponseId,
-        conversation: opts.conversation,
-        // Model Studio expresses named selection through allowed_tools.
-        tool_choice:
-          typeof choice === "object" && choice.type === "function"
-            ? { type: "allowed_tools" as const, mode: "required" as const, tools: [choice] }
-            : choice,
-      })
-    }),
-  },
-  stream: {
-    event: OpenResponses.protocol.stream.event,
-    initial: (req) => OpenResponses.initial(req, adapter),
-    step: (state, input) =>
-      Effect.gen(function* () {
-        const event = OpenResponses.normalize(state, input)
-        if (event.type !== "response.output_item.done" || !event.item) return yield* OpenResponses.step(state, event)
-        if (event.item.type === "web_extractor_call") {
-          const item = yield* Schema.decodeUnknownEffect(WebExtractorItem)(event.item).pipe(
-            Effect.mapError((cause) =>
-              ProviderShared.eventError(
-                adapter.id,
-                "Alibaba returned an invalid web extraction item",
-                ProviderShared.encodeJson(event),
-                cause,
-              ),
-            ),
-          )
-          return yield* ResponsesHostedTools.onDone(state, item, {
-            web_extractor_call: { name: "web_extractor", input: () => ({ urls: item.urls, goal: item.goal }) },
-          })
-        }
-        if (ResponsesHostedTools.isItem(event.item, tools))
-          return yield* ResponsesHostedTools.onDone(state, event.item, tools)
-        return yield* OpenResponses.step(state, event)
-      }),
-    terminal: OpenResponses.terminal,
-  },
-})
-
-export * as AlibabaResponses from "./alibaba-responses.js"
@@ -1,17 +1,13 @@
 import { Buffer } from "node:buffer"
-import { Effect, Option, Schema, SchemaGetter } from "effect"
-import { Tool } from "@opencode/schema/tool"
+import { Effect, Option, Schema } from "effect"
+import { Tool } from "@opencode-ai/schema/tool"
 import { Route } from "../route/client.js"
 import { Auth } from "../route/auth.js"
 import { Endpoint } from "../route/endpoint.js"
 import { Framing } from "../route/framing.js"
 import { Protocol } from "../route/protocol.js"
-import { Headers } from "effect/unstable/http"
-import { HttpTransport } from "../route/transport/index.js"
 import {
  AIError,
-  HttpOptions,
-  LLMRequest,
  LLMEvent,
  mergeJsonRecords,
  Usage,
@@ -19,16 +15,15 @@ import {
  type FinishReasonDetails,
  type FinishReason,
  type JsonSchema,
+  type LLMRequest,
  type MediaPart,
  type ProviderMetadata,
-  type ProviderOptions,
  type ToolCallPart,
  type ToolDefinition,
  type ToolResultPart,
 } from "../schema/index.js"
-import { JsonObject, knownString, optionalArray, optionalNull, ProviderShared } from "./shared.js"
+import { JsonObject, optionalArray, optionalNull, ProviderShared } from "./shared.js"
 import { classifyProviderFailure } from "../provider-error.js"
-import { effortUpdate, resolveEffortUpdates } from "../effort-updates.js"
 import * as Cache from "./utils/cache.js"
 import { Lifecycle } from "./utils/lifecycle.js"
 import { ToolSchemaProjection } from "./utils/tool-schema.js"
@@ -38,7 +33,6 @@ const ADAPTER = "anthropic-messages"
 export const DEFAULT_BASE_URL = "https://api.anthropic.com/v1"
 export const PATH = "/messages"
 export const DEFAULT_MAX_TOKENS = 32_000
-const DEFAULT_EFFORT = "high"

 const SSE_EVENTS = new Set([
  "message",
@@ -53,28 +47,47 @@ const SSE_EVENTS = new Set([
 ])
 export const framing = Framing.sseEvents(SSE_EVENTS)

-export type ThinkingBlockBinding = typeof AnthropicThinkingBlockBinding.Type
-export type ThinkingInput = typeof Thinking.Encoded
-/** Caller-facing provider options; unknown keys are accepted and ignored. `Options.Type` is the wire-ready form. */
-export type OptionsInput = ProviderOptions & typeof Options.Encoded
-export type ProviderOptionsInput = OptionsInput
+export type ThinkingInput =
+  | {
+      readonly type: "adaptive"
+      readonly display?: "summarized" | "omitted"
+    }
+  | {
+      readonly type: "disabled"
+    }
+  | ({ readonly type: "enabled"; readonly display?: "summarized" | "omitted" } & (
+      | { readonly budgetTokens: number; readonly budget_tokens?: number }
+      | { readonly budgetTokens?: number; readonly budget_tokens: number }
+    ))

-export const ContextManagement = Schema.Struct({
-  edits: Schema.Array(
-    Schema.Struct({
-      type: Schema.Literal("compact_20260112"),
-      trigger: Schema.optional(
-        Schema.Struct({
-          type: Schema.Literal("input_tokens"),
-          value: Schema.Int.check(Schema.isGreaterThanOrEqualTo(50000)),
-        }),
-      ),
-      pauseAfterCompaction: Schema.optional(Schema.Boolean),
-      instructions: Schema.optional(Schema.String),
-    }),
-  ),
-})
-export type ContextManagement = typeof ContextManagement.Type
+export interface OptionsInput {
+  readonly [key: string]: unknown
+  readonly thinking?: ThinkingInput
+  readonly effort?: string
+  readonly service_tier?: "auto" | "standard_only"
+  readonly serviceTier?: "auto" | "standard_only"
+  // SDK Metadata:2649 {user_id?: string | null}
+  readonly metadata?: { readonly user_id?: string | null }
+  // SDK MessageCreateParamsContainer:2596 ContainerParams|string
+  readonly container?:
+    | string
+    | { readonly id?: string | null; readonly skills?: ReadonlyArray<Record<string, unknown>> | null }
+  readonly inference_geo?: string | null
+  readonly inferenceGeo?: string | null
+  readonly cache_control?: { readonly type: "ephemeral"; readonly ttl?: "5m" | "1h" }
+  readonly cacheControl?: { readonly type: "ephemeral"; readonly ttl?: "5m" | "1h" }
+  // SDK OutputConfig:2684 {effort, format: JSONOutputFormat}
+  readonly output_config?: {
+    readonly effort?: string | null
+    readonly format?: { readonly type: "json_schema"; readonly schema: Record<string, unknown> } | null
+  }
+  readonly outputConfig?: {
+    readonly effort?: string | null
+    readonly format?: { readonly type: "json_schema"; readonly schema: Record<string, unknown> } | null
+  }
+}
+
+export type ProviderOptionsInput = OptionsInput

 // =============================================================================
 // Request Body Schema
@@ -83,7 +96,6 @@ const AnthropicCacheControl = Schema.Struct({
  type: Schema.tag("ephemeral"),
  ttl: Schema.optional(Schema.Literals(["5m", "1h"])),
 })
-const AnthropicServiceTier = knownString<"auto" | "standard_only">()

 const AnthropicTextBlock = Schema.Struct({
  type: Schema.tag("text"),
@@ -224,12 +236,7 @@ const AnthropicUserBlock = Schema.Union([
  AnthropicToolResultBlock,
 ])
 type AnthropicUserBlock = Schema.Schema.Type<typeof AnthropicUserBlock>
-const AnthropicCompactionBlock = Schema.Struct({
-  type: Schema.Literal("compaction"),
-  content: Schema.NullOr(Schema.String),
-})
 const AnthropicAssistantBlock = Schema.Union([
-  AnthropicCompactionBlock,
  AnthropicTextBlock,
  AnthropicThinkingBlock,
  AnthropicRedactedThinkingBlock,
@@ -243,11 +250,7 @@ type AnthropicToolResultBlock = Schema.Schema.Type<typeof AnthropicToolResultBlo
 const AnthropicMessage = Schema.Union([
  Schema.Struct({ role: Schema.Literal("user"), content: Schema.Array(AnthropicUserBlock) }),
  Schema.Struct({ role: Schema.Literal("assistant"), content: Schema.Array(AnthropicAssistantBlock) }),
-  Schema.Struct({
-    role: Schema.Literal("system"),
-    content: Schema.Array(AnthropicTextBlock),
-    output_config: Schema.optional(Schema.Struct({ effort: Schema.String })),
-  }),
+  Schema.Struct({ role: Schema.Literal("system"), content: Schema.Array(AnthropicTextBlock) }),
 ]).pipe(Schema.toTaggedUnion("role"))
 type AnthropicMessage = Schema.Schema.Type<typeof AnthropicMessage>

@@ -271,23 +274,20 @@ const AnthropicToolChoice = Schema.Union([
  }),
 ])

-const AnthropicThinkingBlockBinding = Schema.Struct({
-  prefix_mismatch_behavior: Schema.optional(knownString<"error" | "drop_block">()),
-})
-
-const AnthropicThinkingFields = {
-  display: Schema.optional(knownString<"summarized" | "omitted">()),
-  block_binding: Schema.optional(AnthropicThinkingBlockBinding),
-}
-const AnthropicThinkingEnabled = Schema.Struct({
-  type: Schema.tag("enabled"),
-  budget_tokens: Schema.Number,
-  ...AnthropicThinkingFields,
-})
-const AnthropicThinkingAdaptive = Schema.Struct({ type: Schema.tag("adaptive"), ...AnthropicThinkingFields })
-const AnthropicThinkingDisabled = Schema.Struct({ type: Schema.tag("disabled") })
-const AnthropicThinking = Schema.Union([AnthropicThinkingEnabled, AnthropicThinkingAdaptive, AnthropicThinkingDisabled])
-type AnthropicThinking = typeof AnthropicThinking.Type
+const AnthropicThinking = Schema.Union([
+  Schema.Struct({
+    type: Schema.tag("enabled"),
+    budget_tokens: Schema.Number,
+    display: Schema.optional(Schema.Literals(["summarized", "omitted"])),
+  }),
+  Schema.Struct({
+    type: Schema.tag("adaptive"),
+    display: Schema.optional(Schema.Literals(["summarized", "omitted"])),
+  }),
+  Schema.Struct({
+    type: Schema.tag("disabled"),
+  }),
+])

 // SDK OutputConfig:2684 {effort?: "low"|"medium"|"high"|"xhigh"|"max"|null, format?: JSONOutputFormat:2399}
 const AnthropicJsonOutputFormat = Schema.Struct({
@@ -311,66 +311,7 @@ const AnthropicContainer = Schema.Union([
  }),
 ])

-// =============================================================================
-// Provider Options
-// =============================================================================
-// Callers spell the budget as `budgetTokens` or the wire `budget_tokens`; the
-// keys are disjoint per variant so the input type requires exactly one and the
-// transform can narrow on it. Decoding straight to the wire block keeps the
-// alias out of the rest of the file.
-const ThinkingEnabledInput = Schema.Union([
-  Schema.Struct({ type: Schema.tag("enabled"), budgetTokens: Schema.Number, ...AnthropicThinkingFields }),
-  Schema.Struct({ type: Schema.tag("enabled"), budget_tokens: Schema.Number, ...AnthropicThinkingFields }),
-]).pipe(
-  Schema.decodeTo(AnthropicThinkingEnabled, {
-    decode: SchemaGetter.transform((input) => ({
-      type: "enabled" as const,
-      budget_tokens: "budgetTokens" in input ? input.budgetTokens : input.budget_tokens,
-      display: input.display,
-      block_binding: input.block_binding,
-    })),
-    encode: SchemaGetter.passthrough({ strict: false }),
-  }),
-)
-const Thinking = Schema.Union([ThinkingEnabledInput, AnthropicThinkingAdaptive, AnthropicThinkingDisabled])
-
-const OutputConfigInput = Schema.Struct({
-  effort: optionalNull(Schema.String),
-  format: optionalNull(AnthropicJsonOutputFormat),
-})
-
-// Both key spellings are accepted; `fromRequest` prefers the snake_case one.
-const Options = Schema.Struct({
-  /** Advanced in-band compaction. The caller owns checkpoint persistence and recovery. */
-  contextManagement: Schema.optional(ContextManagement),
-  thinking: Schema.optional(Thinking),
-  effort: Schema.optional(Schema.String),
-  service_tier: Schema.optional(AnthropicServiceTier),
-  serviceTier: Schema.optional(AnthropicServiceTier),
-  metadata: Schema.optional(AnthropicMetadata),
-  container: Schema.optional(AnthropicContainer),
-  inference_geo: optionalNull(Schema.String),
-  inferenceGeo: optionalNull(Schema.String),
-  cache_control: Schema.optional(AnthropicCacheControl),
-  cacheControl: Schema.optional(AnthropicCacheControl),
-  output_config: Schema.optional(OutputConfigInput),
-  outputConfig: Schema.optional(OutputConfigInput),
-})
-const decodeOptions = ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))
-
 const AnthropicBodyFields = {
-  context_management: Schema.optional(
-    Schema.Struct({
-      edits: Schema.Array(
-        Schema.Struct({
-          type: Schema.Literal("compact_20260112"),
-          trigger: ContextManagement.fields.edits.value.fields.trigger,
-          pause_after_compaction: Schema.optional(Schema.Boolean),
-          instructions: Schema.optional(Schema.String),
-        }),
-      ),
-    }),
-  ),
  model: Schema.String,
  system: optionalArray(AnthropicTextBlock),
  messages: Schema.Array(AnthropicMessage),
@@ -389,12 +330,12 @@ const AnthropicBodyFields = {
  container: Schema.optional(Schema.NullOr(AnthropicContainer)),
  inference_geo: Schema.optional(Schema.NullOr(Schema.String)),
  metadata: Schema.optional(AnthropicMetadata),
-  service_tier: Schema.optional(AnthropicServiceTier),
+  service_tier: Schema.optional(Schema.Literals(["auto", "standard_only"])),
 }
 export const AnthropicMessagesBody = Schema.Struct(AnthropicBodyFields)
 export type AnthropicMessagesBody = Schema.Schema.Type<typeof AnthropicMessagesBody>

-const AnthropicIterationUsage = Schema.StructWithRest(
+const AnthropicUsage = Schema.StructWithRest(
  Schema.Struct({
    input_tokens: optionalNull(Schema.Number),
    output_tokens: Schema.optional(Schema.Number),
@@ -413,13 +354,6 @@ const AnthropicIterationUsage = Schema.StructWithRest(
  }),
  [Schema.Record(Schema.String, Schema.Unknown)],
 )
-const AnthropicUsage = Schema.StructWithRest(
-  Schema.Struct({
-    ...AnthropicIterationUsage.schema.fields,
-    iterations: Schema.optional(Schema.Array(AnthropicIterationUsage)),
-  }),
-  [JsonObject],
-)
 type AnthropicUsage = Schema.Schema.Type<typeof AnthropicUsage>

 const AnthropicStreamBlock = Schema.Struct({
@@ -443,7 +377,6 @@ type AnthropicStreamBlock = Schema.Schema.Type<typeof AnthropicStreamBlock>
 const decodeAnthropicStreamBlock = Schema.decodeUnknownOption(AnthropicStreamBlock)

 const AnthropicStreamDelta = Schema.Struct({
-  content: optionalNull(Schema.String),
  type: Schema.optional(Schema.String),
  text: Schema.optional(Schema.String),
  thinking: Schema.optional(Schema.String),
@@ -473,8 +406,6 @@ const AnthropicEvent = Schema.Struct({
 type AnthropicEvent = Schema.Schema.Type<typeof AnthropicEvent>

 interface ParserState {
-  readonly provider: LLMRequest["model"]["provider"]
-  readonly compactions: Readonly<Record<number, string | null>>
  readonly providerMetadataKey: string
  readonly tools: ToolStream.State<number>
  readonly reasoningSignatures: Readonly<Record<number, string>>
@@ -658,7 +589,7 @@ const lowerMedia = Effect.fn("AnthropicMessages.lowerMedia")(function* (
  part: MediaPart,
  breakpoints?: Cache.Breakpoints,
 ) {
-  const mime = part.media.mediaType.toLowerCase()
+  const mime = part.mediaType.toLowerCase()
  const cacheControlValue = breakpoints ? cacheControl(breakpoints, part.cache) : undefined
  const fileId = fileIdFromMetadata(part.metadata)

@@ -687,9 +618,9 @@ const lowerMedia = Effect.fn("AnthropicMessages.lowerMedia")(function* (
    } satisfies AnthropicDocumentBlock
  }

-  const rawString = ProviderShared.mediaUrl(part.media)?.trim()
+  const rawString = typeof part.data === "string" ? part.data.trim() : undefined
  // SDK URL sources: URLImageSource:3817 / URLPDFSource:3823 {type:"url", url}
-  if (rawString && isHttpUrl(rawString)) {
+  if (rawString && isHttpUrl(rawString) && !rawString.startsWith("data:")) {
    if (mime.startsWith("image/"))
      return {
        type: "image" as const,
@@ -714,11 +645,20 @@ const lowerMedia = Effect.fn("AnthropicMessages.lowerMedia")(function* (
      } satisfies AnthropicDocumentBlock
  }

-  const media = yield* ProviderShared.requireInlineMedia("Anthropic Messages", part.media)
-
  // SDK PlainTextSource:2716 {type:"text", media_type:"text/plain", data}
  if (mime === "text/plain") {
-    const textData = Buffer.from(media.base64, "base64").toString("utf8")
+    const textData =
+      typeof part.data !== "string"
+        ? Buffer.from(part.data).toString("utf8")
+        : part.data.startsWith("data:")
+          ? (() => {
+              const comma = part.data.indexOf(",")
+              const payload = comma >= 0 ? part.data.slice(comma + 1) : part.data
+              return part.data.includes(";base64")
+                ? Buffer.from(payload, "base64").toString("utf8")
+                : decodeURIComponent(payload)
+            })()
+          : part.data
    return {
      type: "document" as const,
      source: { type: "text" as const, media_type: "text/plain" as const, data: textData },
@@ -733,6 +673,7 @@ const lowerMedia = Effect.fn("AnthropicMessages.lowerMedia")(function* (
    } satisfies AnthropicDocumentBlock
  }

+  const media = ProviderShared.normalizeMedia(part)
  if (media.mime === "application/pdf")
    return {
      type: "document" as const,
@@ -751,7 +692,7 @@ const lowerMedia = Effect.fn("AnthropicMessages.lowerMedia")(function* (
        : { citations: citationsFromMetadata(part.metadata)! }),
    } satisfies AnthropicDocumentBlock
  if (!media.mime.startsWith("image/"))
-    return yield* invalid(`Anthropic Messages does not support media type ${part.media.mediaType}`)
+    return yield* invalid(`Anthropic Messages does not support media type ${part.mediaType}`)
  return {
    type: "image" as const,
    source: {
@@ -770,7 +711,7 @@ const lowerMedia = Effect.fn("AnthropicMessages.lowerMedia")(function* (
 // content instead of JSON-stringifying base64 into a prompt string.
 const lowerToolResultContentItem = Effect.fnUntraced(function* (item: Tool.Content) {
  if (item.type === "text") return { type: "text" as const, text: item.text } satisfies AnthropicTextBlock
-  return yield* lowerMedia(ProviderShared.toolFileMedia(item))
+  return yield* lowerMedia({ type: "media", mediaType: item.mime, data: item.uri, filename: item.name })
 })

 const lowerToolResultContent = Effect.fnUntraced(function* (part: ToolResultPart) {
@@ -871,12 +812,6 @@ const lowerMessages = Effect.fn("AnthropicMessages.lowerMessages")(function* (

  for (const [index, message] of request.messages.entries()) {
    if (message.role === "system") {
-      const update = effortUpdate(message)
-      if (update) {
-        // Accepted at any position, so the text-update placement rules do not apply.
-        messages.push({ role: "system", content: [], output_config: { effort: update.effort ?? DEFAULT_EFFORT } })
-        continue
-      }
      if (splitsLocalToolResults(request.messages, index))
        return yield* invalid("Anthropic Messages system updates cannot split a local tool call from its tool result")
      if (supportsNativeSystemUpdates(request) && canUseNativeSystemUpdate(request, index)) {
@@ -896,7 +831,6 @@ const lowerMessages = Effect.fn("AnthropicMessages.lowerMessages")(function* (
      const content: AnthropicUserBlock[] = []
      for (const part of message.content) {
        if (part.type === "text") {
-          if (part.text.trim().length === 0) continue
          content.push({ type: "text", text: part.text, cache_control: cacheControl(breakpoints, part.cache) })
          continue
        }
@@ -906,21 +840,14 @@ const lowerMessages = Effect.fn("AnthropicMessages.lowerMessages")(function* (
        }
        return yield* ProviderShared.unsupportedContent("Anthropic Messages", "user", ["text", "media"])
      }
-      if (content.length > 0) messages.push({ role: "user", content })
+      messages.push({ role: "user", content })
      continue
    }

    if (message.role === "assistant") {
      const content: AnthropicAssistantBlock[] = []
      for (const part of message.content) {
-        if (part.type === "compaction") {
-          if (part.provider !== request.model.provider || part.text === undefined)
-            return yield* invalid("Compaction state must be replayed to its originating provider and API")
-          content.push({ type: "compaction", content: part.text })
-          continue
-        }
        if (part.type === "text") {
-          if (part.text.trim().length === 0) continue
          content.push({ type: "text", text: part.text, cache_control: cacheControl(breakpoints, part.cache) })
          continue
        }
@@ -964,7 +891,7 @@ const lowerMessages = Effect.fn("AnthropicMessages.lowerMessages")(function* (
          `Anthropic Messages assistant messages only support text, reasoning, and tool-call content for now`,
        )
      }
-      if (content.length > 0) messages.push({ role: "assistant", content })
+      messages.push({ role: "assistant", content })
      continue
    }

@@ -989,61 +916,101 @@ const lowerMessages = Effect.fn("AnthropicMessages.lowerMessages")(function* (
  return messages
 })

-// Accept gateway namespaces and Vertex suffixes without treating a snapshot date as a minor version.
-const claudeVersion = (id: string) => {
-  const match = /(?:^|[./])claude-(?<family>[a-z]+)-(?<major>\d+)(?:[.-](?<minor>\d{1,2}))?(?:$|[-:@])/.exec(
-    id.toLowerCase(),
-  )?.groups
-  if (!match) return undefined
-  return { family: match.family, major: Number(match.major), minor: Number(match.minor ?? 0) }
-}
-
-const supportsThinkingBlockBinding = (model: LLMRequest["model"]) => {
-  const override = model.compatibility?.supportsThinkingBlockBinding
-  if (override !== undefined) return override
-  const version = claudeVersion(model.id)
-  return version !== undefined && (version.major > 5 || (version.major === 5 && version.minor >= 1))
-}
-
-const supportsEffortUpdates = (model: LLMRequest["model"]) => {
-  const override = model.compatibility?.supportsEffortUpdates
-  if (override !== undefined) return override
-  const version = claudeVersion(model.id)
-  if (version === undefined) return false
-  if (version.family === "opus") return version.major >= 5
-  if (version.family !== "fable" && version.family !== "mythos") return false
-  return version.major > 5 || (version.major === 5 && version.minor >= 1)
-}
-
-const applyThinkingBindingDefault = (model: LLMRequest["model"], thinking: AnthropicThinking | undefined) => {
-  if (thinking?.type === "disabled") return thinking
-  if (!supportsThinkingBlockBinding(model)) return thinking
+const resolveOptions = Effect.fn("AnthropicMessages.resolveOptions")(function* (request: LLMRequest) {
+  const input = request.providerOptions as Record<string, unknown> | undefined
+  const rawServiceTier =
+    (input as Record<string, unknown> | undefined)?.service_tier ??
+    (input as Record<string, unknown> | undefined)?.serviceTier
+  const service_tier =
+    rawServiceTier === "auto" || rawServiceTier === "standard_only"
+      ? (rawServiceTier as "auto" | "standard_only")
+      : undefined
+  const rawMetadata = (input as Record<string, unknown> | undefined)?.metadata
+  const metadata =
+    ProviderShared.isRecord(rawMetadata) && (typeof rawMetadata.user_id === "string" || rawMetadata.user_id === null)
+      ? { user_id: rawMetadata.user_id as string | null }
+      : undefined
+  const container =
+    typeof (input as Record<string, unknown> | undefined)?.container === "string" ||
+    ProviderShared.isRecord((input as Record<string, unknown> | undefined)?.container)
+      ? ((input as Record<string, unknown>).container as
+          | string
+          | { id?: string | null; skills?: ReadonlyArray<Record<string, unknown>> | null })
+      : undefined
+  const rawInferenceGeo =
+    (input as Record<string, unknown> | undefined)?.inference_geo ??
+    (input as Record<string, unknown> | undefined)?.inferenceGeo
+  const inference_geo = typeof rawInferenceGeo === "string" ? rawInferenceGeo : undefined
+  const rawCacheControl =
+    (input as Record<string, unknown> | undefined)?.cache_control ??
+    (input as Record<string, unknown> | undefined)?.cacheControl
+  const cache_control =
+    ProviderShared.isRecord(rawCacheControl) && rawCacheControl.type === "ephemeral"
+      ? (rawCacheControl as { type: "ephemeral"; ttl?: "5m" | "1h" })
+      : undefined
+  const rawOutputConfig =
+    (input as Record<string, unknown> | undefined)?.output_config ??
+    (input as Record<string, unknown> | undefined)?.outputConfig
+  const outputConfigEffort =
+    typeof (input as Record<string, unknown> | undefined)?.effort === "string"
+      ? ((input as Record<string, unknown>).effort as string)
+      : ProviderShared.isRecord(rawOutputConfig) && typeof rawOutputConfig.effort === "string"
+        ? (rawOutputConfig.effort as string)
+        : undefined
+  const outputConfigFormat =
+    ProviderShared.isRecord(rawOutputConfig) && ProviderShared.isRecord(rawOutputConfig.format)
+      ? (rawOutputConfig.format as { type: "json_schema"; schema: Record<string, unknown> })
+      : undefined
+  const output_config =
+    outputConfigEffort === undefined && outputConfigFormat === undefined
+      ? undefined
+      : {
+          ...(outputConfigEffort === undefined ? {} : { effort: outputConfigEffort }),
+          ...(outputConfigFormat === undefined ? {} : { format: outputConfigFormat }),
+        }
  return {
-    ...(thinking ?? { type: "adaptive" as const }),
-    block_binding: {
-      prefix_mismatch_behavior: "drop_block",
-      ...thinking?.block_binding,
-    },
+    thinking: yield* resolveThinking(input?.thinking),
+    effort: outputConfigEffort,
+    output_config,
+    service_tier,
+    metadata,
+    container,
+    inference_geo,
+    cache_control,
  }
-}
+})
+
+const resolveThinking = Effect.fn("AnthropicMessages.resolveThinking")(function* (input: unknown) {
+  if (!ProviderShared.isRecord(input)) return undefined
+  const display =
+    input.display === "summarized" || input.display === "omitted"
+      ? (input.display as "summarized" | "omitted")
+      : undefined
+  if (input.type === "adaptive") return { type: "adaptive" as const, ...(display === undefined ? {} : { display }) }
+  if (input.type === "disabled") return { type: "disabled" as const }
+  if (input.type !== "enabled") return undefined
+  const budget =
+    typeof input.budgetTokens === "number"
+      ? input.budgetTokens
+      : typeof input.budget_tokens === "number"
+        ? input.budget_tokens
+        : undefined
+  if (budget === undefined)
+    return yield* ProviderShared.invalidRequest("Anthropic thinking provider option requires budgetTokens")
+  return { type: "enabled" as const, budget_tokens: budget, ...(display === undefined ? {} : { display }) }
+})

 const fromRequest = Effect.fn("AnthropicMessages.fromRequest")(function* (request: LLMRequest) {
-  const options = yield* decodeOptions(request.providerOptions ?? {})
-  const management = options.contextManagement
-  const outputConfig = options.output_config ?? options.outputConfig
-  const format = outputConfig?.format ?? undefined
-  const updates = resolveEffortUpdates(request, options.effort ?? outputConfig?.effort ?? undefined)
  const generation = request.generation
  const toolSchemaCompatibility = request.model.compatibility?.toolSchema
  // Allocate the 4-breakpoint budget in invalidation order: tools → system →
  // messages. Tools live highest in the cache hierarchy, so when callers
  // over-mark we keep their tool hints and shed the message-tail ones first.
  const breakpoints = Cache.newBreakpoints(ANTHROPIC_BREAKPOINT_CAP)
-  const flattened = ProviderShared.flattenToolRequest(updates.request)
  const tools =
-    flattened.tools.length === 0
+    request.tools.length === 0
      ? undefined
-      : flattened.tools.map((tool) =>
+      : request.tools.map((tool) =>
          lowerTool(
            breakpoints,
            tool,
@@ -1052,24 +1019,22 @@ const fromRequest = Effect.fn("AnthropicMessages.fromRequest")(function* (reques
        )
  // Anthropic rejects tool_choice when tools are absent; "none" is only meaningful with tools present.
  const toolChoice = tools === undefined || !request.toolChoice ? undefined : yield* lowerToolChoice(request.toolChoice)
-  const systemParts = request.system.filter((part) => part.text.length > 0)
  const system =
-    systemParts.length === 0
+    request.system.length === 0
      ? undefined
-      : systemParts.map((part) => ({
+      : request.system.map((part) => ({
          type: "text" as const,
          text: part.text,
          cache_control: cacheControl(breakpoints, part.cache),
        }))
-  const messages = yield* lowerMessages(flattened.request, breakpoints)
+  const messages = yield* lowerMessages(request, breakpoints)
  if (breakpoints.dropped > 0) {
    yield* Effect.logWarning(
      `Anthropic Messages: dropped ${breakpoints.dropped} cache breakpoint(s); the API allows at most ${ANTHROPIC_BREAKPOINT_CAP} per request.`,
    )
  }
-  const output_config =
-    updates.effort === undefined && format === undefined ? undefined : { effort: updates.effort, format }
-  const body = {
+  const options = yield* resolveOptions(request)
+  return {
    model: request.model.id,
    system,
    messages,
@@ -1081,26 +1046,14 @@ const fromRequest = Effect.fn("AnthropicMessages.fromRequest")(function* (reques
    top_p: generation?.topP,
    top_k: generation?.topK,
    stop_sequences: generation?.stop,
-    thinking: applyThinkingBindingDefault(request.model, options.thinking),
-    output_config,
+    thinking: options.thinking,
+    output_config: options.output_config,
    // top-level passthrough per SDK MessageCreateParamsBase:4638,4643,4649,4654,4670
-    cache_control: options.cache_control ?? options.cacheControl,
+    cache_control: options.cache_control,
    container: options.container,
-    inference_geo: options.inference_geo ?? options.inferenceGeo ?? undefined,
+    inference_geo: options.inference_geo,
    metadata: options.metadata,
-    service_tier: options.service_tier ?? options.serviceTier,
-  }
-  if (!management) return body
-  return {
-    ...body,
-    context_management: {
-      edits: management.edits.map((edit) => ({
-        type: edit.type,
-        trigger: edit.trigger,
-        pause_after_compaction: edit.pauseAfterCompaction,
-        instructions: edit.instructions,
-      })),
-    },
+    service_tier: options.service_tier,
  }
 })

@@ -1123,31 +1076,18 @@ const mapFinishReason = (reason: string | null | undefined): FinishReason => {
 // expose that subset through `output_tokens_details.thinking_tokens`.
 const mapUsage = (usage: AnthropicUsage | undefined, providerMetadataKey: string): Usage | undefined => {
  if (!usage) return undefined
-  const iterations = usage.iterations?.length ? usage.iterations : [usage]
-  const last = usage.iterations?.at(-1)
-  const nonCached = ProviderShared.sumTokens(...iterations.map((item) => item.input_tokens ?? undefined))
-  const cacheRead = ProviderShared.sumTokens(...iterations.map((item) => item.cache_read_input_tokens ?? undefined))
-  const cacheWrite = ProviderShared.sumTokens(
-    ...iterations.map((item) => item.cache_creation_input_tokens ?? undefined),
-  )
+  const nonCached = usage.input_tokens ?? undefined
+  const cacheRead = usage.cache_read_input_tokens ?? undefined
+  const cacheWrite = usage.cache_creation_input_tokens ?? undefined
  const inputTokens = ProviderShared.sumTokens(nonCached, cacheRead, cacheWrite)
-  const outputTokens = ProviderShared.sumTokens(...iterations.map((item) => item.output_tokens))
  return new Usage({
    inputTokens,
-    outputTokens,
-    contextTokens:
-      last?.type === "message"
-        ? ProviderShared.sumTokens(
-            last.input_tokens ?? undefined,
-            last.cache_read_input_tokens ?? undefined,
-            last.cache_creation_input_tokens ?? undefined,
-          )
-        : undefined,
+    outputTokens: usage.output_tokens,
    nonCachedInputTokens: nonCached,
    cacheReadInputTokens: cacheRead,
    cacheWriteInputTokens: cacheWrite,
-    reasoningTokens: ProviderShared.sumTokens(...iterations.map((item) => item.output_tokens_details?.thinking_tokens)),
-    totalTokens: ProviderShared.totalTokens(inputTokens, outputTokens, undefined),
+    reasoningTokens: usage.output_tokens_details?.thinking_tokens,
+    totalTokens: ProviderShared.totalTokens(inputTokens, usage.output_tokens, undefined),
    providerMetadata: { [providerMetadataKey]: usage },
  })
 }
@@ -1169,7 +1109,6 @@ const mergeUsage = (left: Usage | undefined, right: Usage | undefined, providerM
  return new Usage({
    inputTokens,
    outputTokens,
-    contextTokens: right.contextTokens ?? left.contextTokens,
    nonCachedInputTokens,
    cacheReadInputTokens,
    cacheWriteInputTokens,
@@ -1228,6 +1167,7 @@ const onContentBlockStart = (
  event: AnthropicEvent & { readonly content_block: AnthropicStreamBlock },
 ): StepResult => {
  const block = event.content_block
+  if (!block) return [state, NO_EVENTS]

  if (block.type === "tool_use" || block.type === "server_tool_use") {
    if (event.index === undefined || !block.id) return [state, NO_EVENTS]
@@ -1322,16 +1262,7 @@ const onContentBlockDelta = Effect.fn("AnthropicMessages.onContentBlockDelta")(f
 ) {
  const delta = event.delta

-  if (delta.type === "compaction_delta") {
-    if (event.index === undefined || !(event.index in state.compactions) || delta.content === undefined)
-      return yield* ProviderShared.eventError(ADAPTER, "Compaction delta is missing its block or content")
-    return [
-      { ...state, compactions: { ...state.compactions, [event.index]: delta.content } },
-      NO_EVENTS,
-    ] satisfies StepResult
-  }
-
-  if (delta.type === "text_delta" && delta.text) {
+  if (delta?.type === "text_delta" && delta.text) {
    if (!state.lifecycle.text.has(`text-${event.index ?? 0}`)) return [state, NO_EVENTS] satisfies StepResult
    const events: LLMEvent[] = []
    return [
@@ -1340,7 +1271,7 @@ const onContentBlockDelta = Effect.fn("AnthropicMessages.onContentBlockDelta")(f
    ] satisfies StepResult
  }

-  if (delta.type === "thinking_delta" && delta.thinking) {
+  if (delta?.type === "thinking_delta" && delta.thinking) {
    if (!state.lifecycle.reasoning.has(`reasoning-${event.index ?? 0}`)) return [state, NO_EVENTS] satisfies StepResult
    const events: LLMEvent[] = []
    return [
@@ -1352,7 +1283,7 @@ const onContentBlockDelta = Effect.fn("AnthropicMessages.onContentBlockDelta")(f
    ] satisfies StepResult
  }

-  if (delta.type === "signature_delta" && delta.signature) {
+  if (delta?.type === "signature_delta" && delta.signature) {
    const index = event.index ?? 0
    if (!state.lifecycle.reasoning.has(`reasoning-${index}`)) return [state, NO_EVENTS] satisfies StepResult
    return [
@@ -1364,7 +1295,7 @@ const onContentBlockDelta = Effect.fn("AnthropicMessages.onContentBlockDelta")(f
    ] satisfies StepResult
  }

-  if (delta.type === "input_json_delta" && event.index !== undefined) {
+  if (delta?.type === "input_json_delta" && event.index !== undefined) {
    if (!delta.partial_json) return [state, NO_EVENTS] satisfies StepResult
    if (!state.tools[event.index]) return [state, NO_EVENTS] satisfies StepResult
    const result = ToolStream.appendExisting(
@@ -1389,18 +1320,6 @@ const onContentBlockStop = Effect.fn("AnthropicMessages.onContentBlockStop")(fun
  event: AnthropicEvent,
 ) {
  if (event.index === undefined) return [state, NO_EVENTS] satisfies StepResult
-  if (event.index in state.compactions) {
-    const { [event.index]: content, ...compactions } = state.compactions
-    const events: LLMEvent[] = []
-    const lifecycle = Lifecycle.stepStart(state.lifecycle, events)
-    events.push(
-      LLMEvent.compaction({
-        provider: state.provider,
-        text: content,
-      }),
-    )
-    return [{ ...state, compactions, lifecycle }, events] satisfies StepResult
-  }
  const result = yield* ToolStream.finish(ADAPTER, state.tools, event.index)
  const events: LLMEvent[] = []
  const resultEvents = result.events ?? []
@@ -1424,51 +1343,31 @@ const onMessageDelta = (
  event: AnthropicEvent & { readonly delta?: AnthropicStreamDelta },
 ): StepResult => {
  const usage = mergeUsage(state.usage, mapUsage(event.usage, state.providerMetadataKey), state.providerMetadataKey)
-  const pendingFinish = (() => {
-    const stopReason = event.delta?.stop_reason
-    if (stopReason === null || stopReason === undefined) return state.pendingFinish
-
-    const stopSequence = event.delta?.stop_sequence
-    const finishMetadata =
-      stopSequence === null || stopSequence === undefined
-        ? state.pendingFinish?.providerMetadata
-        : providerMetadata(state.providerMetadataKey, { stopSequence })
-    return {
-      reason: {
-        normalized: mapFinishReason(stopReason),
-        raw: stopReason,
-      },
-      providerMetadata: finishMetadata,
-    }
-  })()
  return [
    {
      ...state,
      usage,
-      pendingFinish,
+      pendingFinish: {
+        reason: {
+          normalized: mapFinishReason(event.delta?.stop_reason),
+          raw: event.delta?.stop_reason ?? undefined,
+        },
+        providerMetadata:
+          event.delta?.stop_sequence === null || event.delta?.stop_sequence === undefined
+            ? undefined
+            : providerMetadata(state.providerMetadataKey, { stopSequence: event.delta.stop_sequence }),
+      },
    },
    NO_EVENTS,
  ]
 }

 const onMessageStop = Effect.fn("AnthropicMessages.onMessageStop")(function* (state: ParserState) {
-  if (Object.keys(state.compactions).length)
-    return yield* ProviderShared.eventError(ADAPTER, "Response ended with an incomplete compaction block")
  const result = yield* ToolStream.finishAll(ADAPTER, state.tools)
  const events: LLMEvent[] = []
  const lifecycle = result.events.length ? Lifecycle.stepStart(state.lifecycle, events) : state.lifecycle
  events.push(...result.events)
-  const closed = Object.entries(state.reasoningSignatures).reduce(
-    (current, [index, signature]) =>
-      Lifecycle.reasoningEnd(
-        current,
-        events,
-        `reasoning-${index}`,
-        providerMetadata(state.providerMetadataKey, { signature }),
-      ),
-    lifecycle,
-  )
-  const finished = Lifecycle.finish(closed, events, {
+  const finished = Lifecycle.finish(lifecycle, events, {
    reason: state.pendingFinish?.reason ?? {
      normalized: "unknown",
      raw: undefined,
@@ -1498,21 +1397,16 @@ const onError = (event: AnthropicEvent) => {
  )
 }

-const STREAM_BLOCK_TYPES = new Set([
-  "compaction",
-  "text",
-  "thinking",
-  "redacted_thinking",
-  "tool_use",
-  "server_tool_use",
-])
-const STREAM_DELTA_TYPES = new Set([
-  "compaction_delta",
-  "text_delta",
-  "thinking_delta",
-  "signature_delta",
-  "input_json_delta",
-])
+const isKnownStreamBlockType = (type: string) =>
+  type === "text" ||
+  type === "thinking" ||
+  type === "redacted_thinking" ||
+  type === "tool_use" ||
+  type === "server_tool_use" ||
+  isServerToolResultType(type)
+
+const isKnownStreamDeltaType = (type: string) =>
+  type === "text_delta" || type === "thinking_delta" || type === "signature_delta" || type === "input_json_delta"

 const invalidStreamEvent = (event: AnthropicEvent) =>
  Effect.fail(
@@ -1541,16 +1435,7 @@ const step = (state: ParserState, event: AnthropicEvent) => {
  if (event.type === "content_block_start") {
    if (!ProviderShared.isRecord(event.content_block) || typeof event.content_block.type !== "string")
      return invalidStreamEvent(event)
-    if (event.content_block.type === "compaction") {
-      const decoded = Schema.decodeUnknownOption(AnthropicCompactionBlock)(event.content_block)
-      if (event.index === undefined || Option.isNone(decoded)) return invalidStreamEvent(event)
-      return Effect.succeed<StepResult>([
-        { ...state, compactions: { ...state.compactions, [event.index]: decoded.value.content } },
-        NO_EVENTS,
-      ])
-    }
-    if (!STREAM_BLOCK_TYPES.has(event.content_block.type) && !isServerToolResultType(event.content_block.type))
-      return Effect.succeed<StepResult>([state, NO_EVENTS])
+    if (!isKnownStreamBlockType(event.content_block.type)) return Effect.succeed<StepResult>([state, NO_EVENTS])
    const decoded = decodeAnthropicStreamBlock(event.content_block)
    if (Option.isNone(decoded)) return invalidStreamEvent(event)
    const block = decoded.value
@@ -1564,7 +1449,7 @@ const step = (state: ParserState, event: AnthropicEvent) => {
  }
  if (event.type === "content_block_delta") {
    if (!ProviderShared.isRecord(event.delta)) return invalidStreamEvent(event)
-    if (typeof event.delta.type === "string" && !STREAM_DELTA_TYPES.has(event.delta.type))
+    if (typeof event.delta.type === "string" && !isKnownStreamDeltaType(event.delta.type))
      return Effect.succeed<StepResult>([state, NO_EVENTS])
    const decoded = decodeAnthropicStreamDelta(event.delta)
    if (Option.isNone(decoded)) return invalidStreamEvent(event)
@@ -1598,8 +1483,6 @@ export const protocol = Protocol.make({
  stream: {
    event: Protocol.jsonEvent(AnthropicEvent),
    initial: (request) => ({
-      provider: request.model.provider,
-      compactions: {},
      providerMetadataKey: request.model.route.providerMetadataKey ?? String(request.model.provider),
      tools: ToolStream.empty<number>(),
      reasoningSignatures: {},
@@ -1607,57 +1490,8 @@ export const protocol = Protocol.make({
    }),
    step,
  },
-  supportsEffortUpdates: (request) => supportsEffortUpdates(request.model),
 })

-export const transport = <
-  Body extends Pick<AnthropicMessagesBody, "messages" | "context_management" | "thinking">,
->() => {
-  const http = HttpTransport.httpJson<Body, string>({ framing })
-  return {
-    ...http,
-    prepare: (input: Parameters<typeof http.prepare>[0]) => {
-      const requiredBetas = requiredBetaHeaders(input.body)
-      if (requiredBetas.length === 0) return http.prepare(input)
-      const headers = Headers.fromInput(input.request.http?.headers)
-      const existingBetas = (headers["anthropic-beta"] ?? "")
-        .split(",")
-        .map((item) => item.trim())
-        .filter(Boolean)
-      const betas = new Set([...existingBetas, ...requiredBetas])
-      return http.prepare({
-        ...input,
-        request: LLMRequest.update(input.request, {
-          http: new HttpOptions({
-            ...input.request.http,
-            headers: { ...headers, "anthropic-beta": [...betas].join(",") },
-          }),
-        }),
-      })
-    },
-  }
-}
-
-function requiredBetaHeaders(body: Pick<AnthropicMessagesBody, "messages" | "context_management" | "thinking">) {
-  // Always request interleaved thinking. The API accepts the header on any
-  // model and ignores it where unsupported, while manual-thinking models need
-  // it for thinking between tool calls.
-  const betas: string[] = ["interleaved-thinking-2025-05-14"]
-  const requestsCompaction = (body.context_management?.edits.length ?? 0) > 0
-  const replaysCompaction = body.messages.some((message) =>
-    message.content.some((block) => block.type === "compaction"),
-  )
-  if (requestsCompaction || replaysCompaction) betas.push("compact-2026-01-12")
-
-  if (body.messages.some((message) => message.role === "system" && message.output_config !== undefined))
-    betas.push("mid-conversation-output-config-2026-07-01")
-
-  const thinking = body.thinking
-  if (thinking && thinking.type !== "disabled" && thinking.block_binding)
-    betas.push("thinking-binding-controls-2026-08-01")
-  return betas
-}
-
 export const route = Route.make({
  id: ADAPTER,
  provider: "anthropic",
@@ -1667,7 +1501,7 @@ export const route = Route.make({
    baseURL: DEFAULT_BASE_URL,
  }),
  auth: Auth.none,
-  transport: transport<AnthropicMessagesBody>(),
+  framing,
  headers: () => ({ "anthropic-version": "2023-06-01" }),
 })

@@ -1,4 +1,4 @@
-import { Effect, Encoding, Schema } from "effect"
+import { Effect, Schema } from "effect"
 import { Route } from "../route/client.js"
 import { Endpoint } from "../route/endpoint.js"
 import { Protocol } from "../route/protocol.js"
@@ -25,7 +25,6 @@ import { BedrockAuth } from "./utils/bedrock-auth.js"
 import { BedrockCache } from "./utils/bedrock-cache.js"
 import { BedrockMedia } from "./utils/bedrock-media.js"
 import { Lifecycle } from "./utils/lifecycle.js"
-import { MistralToolID } from "./utils/mistral-tool-id.js"
 import { ToolSchemaProjection } from "./utils/tool-schema.js"
 import { ToolStream } from "./utils/tool-stream.js"

@@ -107,7 +106,7 @@ type BedrockSystemBlock = Schema.Schema.Type<typeof BedrockSystemBlock>
 const BedrockToolSpec = Schema.Struct({
  toolSpec: Schema.Struct({
    name: Schema.String,
-    description: Schema.optional(Schema.String),
+    description: Schema.String,
    inputSchema: Schema.Struct({
      json: JsonObject,
    }),
@@ -223,7 +222,7 @@ type BedrockEvent = Schema.Schema.Type<typeof BedrockEvent>
 const lowerToolSpec = (tool: ToolDefinition, inputSchema: JsonSchema): BedrockToolSpec => ({
  toolSpec: {
    name: tool.name,
-    ...(tool.description.trim().length > 0 ? { description: tool.description } : {}),
+    description: tool.description,
    inputSchema: { json: inputSchema },
  },
 })
@@ -263,36 +262,28 @@ const providerMetadata = (key: string, metadata: Record<string, unknown>): Provi

 const reasoningSignature = (part: ReasoningPart, providerMetadataKey: string) => {
  const metadata = part.providerMetadata?.[providerMetadataKey]
-  if (part.encrypted !== undefined) return part.encrypted
-  if (ProviderShared.isRecord(metadata) && typeof metadata.signature === "string") return metadata.signature
+  return (
+    part.encrypted ??
+    (ProviderShared.isRecord(metadata) && typeof metadata.signature === "string" ? metadata.signature : undefined)
+  )
 }

 const reasoningRedactedData = (part: ReasoningPart, providerMetadataKey: string) => {
  const metadata = part.providerMetadata?.[providerMetadataKey]
-  if (ProviderShared.isRecord(metadata) && typeof metadata.redactedData === "string") return metadata.redactedData
+  return ProviderShared.isRecord(metadata) && typeof metadata.redactedData === "string"
+    ? metadata.redactedData
+    : undefined
 }

-const removeEmptyToolInputKeys = (input: unknown): unknown => {
-  if (Array.isArray(input)) return input.map(removeEmptyToolInputKeys)
-  if (!ProviderShared.isRecord(input)) return input
-  return Object.fromEntries(
-    Object.entries(input).flatMap(([key, value]) => (key === "" ? [] : [[key, removeEmptyToolInputKeys(value)]])),
-  )
-}
-
-const lowerToolCall = (part: ToolCallPart, normalizeID: (id: string) => string): BedrockToolUseBlock => ({
+const lowerToolCall = (part: ToolCallPart): BedrockToolUseBlock => ({
  toolUse: {
-    toolUseId: normalizeID(part.id),
-    // Models can emit names that Converse rejects when replayed in history.
-    name: part.name.replace(/[^a-zA-Z0-9_-]/g, "_").slice(0, 64) || "_",
-    input: removeEmptyToolInputKeys(part.input),
+    toolUseId: part.id,
+    name: part.name,
+    input: part.input,
  },
 })

-const lowerToolResultContent = Effect.fn("BedrockConverse.lowerToolResultContent")(function* (
-  part: ToolResultPart,
-  documentNames: Set<string>,
-) {
+const lowerToolResultContent = Effect.fn("BedrockConverse.lowerToolResultContent")(function* (part: ToolResultPart) {
  if (part.result.type === "text" || part.result.type === "error")
    return [{ text: ProviderShared.toolResultText(part) }]
  if (part.result.type === "json") return [{ json: part.result.value }]
@@ -303,21 +294,22 @@ const lowerToolResultContent = Effect.fn("BedrockConverse.lowerToolResultContent
      content.push({ text: item.text })
      continue
    }
-    const media = yield* BedrockMedia.lower(ProviderShared.toolFileMedia(item), documentNames)
-    content.push(...media)
+    const media = yield* BedrockMedia.lower({
+      type: "media",
+      mediaType: item.mime,
+      data: item.uri,
+      filename: item.name,
+    })
+    content.push(media)
  }
  return content
 })

-const lowerToolResult = Effect.fn("BedrockConverse.lowerToolResult")(function* (
-  part: ToolResultPart,
-  documentNames: Set<string>,
-  normalizeID: (id: string) => string,
-) {
+const lowerToolResult = Effect.fn("BedrockConverse.lowerToolResult")(function* (part: ToolResultPart) {
  return {
    toolResult: {
-      toolUseId: normalizeID(part.id),
-      content: yield* lowerToolResultContent(part, documentNames),
+      toolUseId: part.id,
+      content: yield* lowerToolResultContent(part),
      status: part.result.type === "error" ? "error" : "success",
    },
  } satisfies BedrockToolResultBlock
@@ -328,9 +320,6 @@ const lowerMessages = Effect.fn("BedrockConverse.lowerMessages")(function* (
  breakpoints: BedrockCache.Breakpoints,
 ) {
  const messages: BedrockMessage[] = []
-  const documentNames = new Set<string>()
-  // Mistral can reject replay IDs even when they satisfy Converse's broader ID syntax.
-  const normalizeID = request.model.id.includes("mistral.") ? MistralToolID.normalizer(request) : (id: string) => id
  const providerMetadataKey = request.model.route.providerMetadataKey ?? String(request.model.provider)

  for (const message of request.messages) {
@@ -354,7 +343,7 @@ const lowerMessages = Effect.fn("BedrockConverse.lowerMessages")(function* (
          continue
        }
        if (part.type === "media") {
-          content.push(...(yield* BedrockMedia.lower(part, documentNames)))
+          content.push(yield* BedrockMedia.lower(part))
          continue
        }
      }
@@ -395,7 +384,7 @@ const lowerMessages = Effect.fn("BedrockConverse.lowerMessages")(function* (
          continue
        }
        if (part.type === "tool-call") {
-          content.push(lowerToolCall(part, normalizeID))
+          content.push(lowerToolCall(part))
          continue
        }
      }
@@ -407,7 +396,7 @@ const lowerMessages = Effect.fn("BedrockConverse.lowerMessages")(function* (
    for (const part of message.content) {
      if (!ProviderShared.supportsContent(part, ["tool-result"]))
        return yield* ProviderShared.unsupportedContent("Bedrock Converse", "tool", ["tool-result"])
-      content.push(yield* lowerToolResult(part, documentNames, normalizeID))
+      content.push(yield* lowerToolResult(part))
      const cachePoint = BedrockCache.block(breakpoints, part.cache)
      if (cachePoint) content.push(cachePoint)
    }
@@ -422,56 +411,49 @@ const lowerMessages = Effect.fn("BedrockConverse.lowerMessages")(function* (

 // System prompts share the cache-point convention: emit the text block, then
 // optionally a positional `cachePoint` marker.
-const lowerSystem = (breakpoints: BedrockCache.Breakpoints, system: ReadonlyArray<LLMRequest["system"][number]>) => {
-  const content = system
-    .filter((part) => part.text.length > 0)
-    .flatMap((part) => textWithCache(breakpoints, part.text, part.cache))
-  return content.length === 0 ? undefined : content
-}
+const lowerSystem = (
+  breakpoints: BedrockCache.Breakpoints,
+  system: ReadonlyArray<LLMRequest["system"][number]>,
+): BedrockSystemBlock[] => system.flatMap((part) => textWithCache(breakpoints, part.text, part.cache))

 const fromRequest = Effect.fn("BedrockConverse.fromRequest")(function* (request: LLMRequest) {
  const toolChoice = request.toolChoice ? yield* lowerToolChoice(request.toolChoice) : undefined
-  const flattened = ProviderShared.flattenToolRequest(request)
  const generation = request.generation
  // Bedrock-Claude shares Anthropic's 4-breakpoint cap. Spend the budget in
  // tools → system → messages order to favour the highest-impact prefixes.
-  const breakpoints = BedrockCache.breakpoints(request.model.id)
-  const toolConfig = (() => {
-    if (flattened.tools.length === 0) return undefined
-    return {
-      tools: lowerTools(request.model.compatibility?.toolSchema, breakpoints, flattened.tools),
-      // Converse has no native "none". Keep definitions stable for prompt
-      // caching and omit only the unsupported choice.
-      toolChoice,
-    }
-  })()
-  const system = lowerSystem(breakpoints, request.system)
-  const messages = yield* lowerMessages(flattened.request, breakpoints)
+  const breakpoints = BedrockCache.breakpoints()
+  const toolConfig =
+    request.tools.length > 0
+      ? {
+          tools: lowerTools(request.model.compatibility?.toolSchema, breakpoints, request.tools),
+          // Converse has no native "none". Keep definitions stable for prompt
+          // caching and omit only the unsupported choice.
+          toolChoice,
+        }
+      : undefined
+  const system = request.system.length === 0 ? undefined : lowerSystem(breakpoints, request.system)
+  const messages = yield* lowerMessages(request, breakpoints)
  if (breakpoints.dropped > 0) {
    yield* Effect.logWarning(
      `Bedrock Converse: dropped ${breakpoints.dropped} cache breakpoint(s); the API allows at most ${BedrockCache.BEDROCK_BREAKPOINT_CAP} per request.`,
    )
  }
-  const inferenceConfig = (() => {
-    if (
-      generation?.maxTokens === undefined &&
-      generation?.temperature === undefined &&
-      generation?.topP === undefined &&
-      (generation?.stop === undefined || generation.stop.length === 0)
-    )
-      return undefined
-    return {
-      maxTokens: generation?.maxTokens,
-      temperature: generation?.temperature,
-      topP: generation?.topP,
-      stopSequences: generation?.stop,
-    }
-  })()
  return {
    modelId: request.model.id,
    messages,
    system,
-    inferenceConfig,
+    inferenceConfig:
+      generation?.maxTokens === undefined &&
+      generation?.temperature === undefined &&
+      generation?.topP === undefined &&
+      (generation?.stop === undefined || generation.stop.length === 0)
+        ? undefined
+        : {
+            maxTokens: generation?.maxTokens,
+            temperature: generation?.temperature,
+            topP: generation?.topP,
+            stopSequences: generation?.stop,
+          },
    toolConfig,
    // Converse's base inferenceConfig has no topK; Anthropic/Nova accept it
    // as a model-specific field, so it goes through additionalModelRequestFields.
@@ -487,6 +469,7 @@ const mapFinishReason = (reason: string): FinishReason => {
  if (reason === "max_tokens" || reason === "model_context_window_exceeded") return "length"
  if (reason === "tool_use") return "tool-calls"
  if (reason === "content_filtered" || reason === "guardrail_intervened") return "content-filter"
+  if (reason === "malformed_model_output" || reason === "malformed_tool_use") return "error"
  return "unknown"
 }

@@ -514,23 +497,12 @@ interface ParserState {
  readonly providerMetadataKey: string
  readonly tools: ToolStream.State<number>
  // Bedrock splits the finish into `messageStop` (carries `stopReason`) and
-  // `metadata` (carries usage). Hold both in state so `onHalt` can emit exactly
-  // one finish after both chunks have had a chance to arrive.
-  readonly finishReason: FinishReasonDetails | undefined
-  readonly usage: Usage | undefined
+  // `metadata` (carries usage). Hold the terminal event in state so `onHalt`
+  // can emit exactly one finish after both chunks have had a chance to arrive.
+  readonly pendingFinish: { readonly reason: FinishReasonDetails; readonly usage?: Usage } | undefined
  readonly hasToolCalls: boolean
  readonly lifecycle: Lifecycle.State
  readonly reasoningSignatures: Readonly<Record<number, string>>
-  readonly reasoningRedactedContent: Readonly<Record<number, ReadonlyArray<Uint8Array>>>
-}
-
-const encodeRedactedContent = (chunks: ReadonlyArray<Uint8Array>) => {
-  const bytes = new Uint8Array(chunks.reduce((total, chunk) => total + chunk.length, 0))
-  chunks.reduce((offset, chunk) => {
-    bytes.set(chunk, offset)
-    return offset + chunk.length
-  }, 0)
-  return Encoding.encodeBase64(bytes)
 }

 const step = (state: ParserState, event: BedrockEvent) =>
@@ -578,60 +550,38 @@ const step = (state: ParserState, event: BedrockEvent) =>
      const index = event.contentBlockDelta.contentBlockIndex
      const reasoning = event.contentBlockDelta.delta.reasoningContent
      const events: LLMEvent[] = []
-      const redactedChunks = yield* (() => {
-        if (reasoning.redactedContent === undefined) return Effect.succeed(undefined)
-        return Effect.fromResult(Encoding.decodeBase64(reasoning.redactedContent)).pipe(
-          Effect.map((chunk) => [...(state.reasoningRedactedContent[index] ?? []), chunk]),
-          Effect.mapError((cause) =>
-            ProviderShared.eventError(
-              ADAPTER,
-              "Bedrock Converse reasoningContent.redactedContent contains invalid base64 data",
-              undefined,
-              cause,
-            ),
-          ),
-        )
-      })()
-      const redactedData = redactedChunks === undefined ? reasoning.data : encodeRedactedContent(redactedChunks)
-      const metadata = (() => {
-        if (reasoning.signature) return providerMetadata(state.providerMetadataKey, { signature: reasoning.signature })
-        if (redactedData !== undefined) return providerMetadata(state.providerMetadataKey, { redactedData })
-      })()
-      const lifecycle = (() => {
-        if (reasoning.text === undefined && metadata === undefined) return state.lifecycle
-        return Lifecycle.reasoningDelta(state.lifecycle, events, `reasoning-${index}`, reasoning.text ?? "", metadata)
-      })()
-      const reasoningRedactedContent = (() => {
-        if (redactedChunks !== undefined) return { ...state.reasoningRedactedContent, [index]: redactedChunks }
-        if (reasoning.data === undefined) return state.reasoningRedactedContent
-        return Object.fromEntries(
-          Object.entries(state.reasoningRedactedContent).filter(([key]) => key !== String(index)),
-        )
-      })()
-      const reasoningSignatures = (() => {
-        if (!reasoning.signature) return state.reasoningSignatures
-        return { ...state.reasoningSignatures, [index]: reasoning.signature }
-      })()
+      const redactedData = reasoning.redactedContent ?? reasoning.data
+      const metadata = reasoning.signature
+        ? providerMetadata(state.providerMetadataKey, { signature: reasoning.signature })
+        : redactedData !== undefined
+          ? providerMetadata(state.providerMetadataKey, { redactedData })
+          : undefined
+      const lifecycle =
+        reasoning.text !== undefined || metadata !== undefined
+          ? Lifecycle.reasoningDelta(state.lifecycle, events, `reasoning-${index}`, reasoning.text ?? "", metadata)
+          : state.lifecycle
      return [
        {
          ...state,
          lifecycle,
-          reasoningSignatures,
-          reasoningRedactedContent,
+          reasoningSignatures: reasoning.signature
+            ? { ...state.reasoningSignatures, [index]: reasoning.signature }
+            : state.reasoningSignatures,
        },
        events,
      ] as const
    }

    if (event.contentBlockDelta?.delta?.toolUse) {
-      // A delta for a block that is not open, whether it already stopped or never
-      // started, has nothing to attach to and is dropped.
-      const result = ToolStream.append(
+      const index = event.contentBlockDelta.contentBlockIndex
+      const result = ToolStream.appendExisting(
+        ADAPTER,
        state.tools,
-        event.contentBlockDelta.contentBlockIndex,
+        index,
        event.contentBlockDelta.delta.toolUse.input,
+        "Bedrock Converse tool delta is missing its tool call",
      )
-      if (!result) return [state, []] as const
+      if (ToolStream.isError(result)) return yield* result
      const events: LLMEvent[] = []
      const lifecycle = result.events.length ? Lifecycle.stepStart(state.lifecycle, events) : state.lifecycle
      events.push(...result.events)
@@ -643,24 +593,16 @@ const step = (state: ParserState, event: BedrockEvent) =>
      const result = yield* ToolStream.finish(ADAPTER, state.tools, index)
      const events: LLMEvent[] = []
      const resultEvents = result.events ?? []
-      const lifecycle = (() => {
-        if (resultEvents.length) return Lifecycle.stepStart(state.lifecycle, events)
-        const metadata = (() => {
-          const signature = state.reasoningSignatures[index]
-          if (signature) return providerMetadata(state.providerMetadataKey, { signature })
-          const redactedContent = state.reasoningRedactedContent[index]
-          if (redactedContent)
-            return providerMetadata(state.providerMetadataKey, {
-              redactedData: encodeRedactedContent(redactedContent),
-            })
-        })()
-        return Lifecycle.reasoningEnd(
-          Lifecycle.textEnd(state.lifecycle, events, `text-${index}`),
-          events,
-          `reasoning-${index}`,
-          metadata,
-        )
-      })()
+      const lifecycle = resultEvents.length
+        ? Lifecycle.stepStart(state.lifecycle, events)
+        : Lifecycle.reasoningEnd(
+            Lifecycle.textEnd(state.lifecycle, events, `text-${index}`),
+            events,
+            `reasoning-${index}`,
+            state.reasoningSignatures[index]
+              ? providerMetadata(state.providerMetadataKey, { signature: state.reasoningSignatures[index] })
+              : undefined,
+          )
      events.push(...resultEvents)
      return [
        {
@@ -673,30 +615,21 @@ const step = (state: ParserState, event: BedrockEvent) =>
          reasoningSignatures: Object.fromEntries(
            Object.entries(state.reasoningSignatures).filter(([key]) => key !== String(index)),
          ),
-          reasoningRedactedContent: Object.fromEntries(
-            Object.entries(state.reasoningRedactedContent).filter(([key]) => key !== String(index)),
-          ),
        },
        events,
      ] as const
    }

    if (event.messageStop) {
-      if (
-        event.messageStop.stopReason === "malformed_model_output" ||
-        event.messageStop.stopReason === "malformed_tool_use"
-      )
-        return yield* ProviderShared.eventError(
-          ADAPTER,
-          `Bedrock Converse stopped with ${event.messageStop.stopReason}`,
-          ProviderShared.encodeJson(event),
-        )
      return [
        {
          ...state,
-          finishReason: {
-            normalized: mapFinishReason(event.messageStop.stopReason),
-            raw: event.messageStop.stopReason,
+          pendingFinish: {
+            reason: {
+              normalized: mapFinishReason(event.messageStop.stopReason),
+              raw: event.messageStop.stopReason,
+            },
+            usage: state.pendingFinish?.usage,
          },
        },
        [],
@@ -704,11 +637,14 @@ const step = (state: ParserState, event: BedrockEvent) =>
    }

    if (event.metadata) {
-      const usage = mapUsage(event.metadata.usage, state.providerMetadataKey) ?? state.usage
+      const usage = mapUsage(event.metadata.usage, state.providerMetadataKey) ?? state.pendingFinish?.usage
      return [
        {
          ...state,
-          usage,
+          pendingFinish: {
+            reason: state.pendingFinish?.reason ?? { normalized: "stop" },
+            usage,
+          },
        },
        [],
      ] as const
@@ -731,22 +667,23 @@ const step = (state: ParserState, event: BedrockEvent) =>

 const framing = BedrockEventStream.framing(ADAPTER)

-const onHalt = (state: ParserState): ReadonlyArray<LLMEvent> => {
-  if (!state.finishReason) return []
-  const normalized = (() => {
-    if (state.finishReason.normalized === "stop" && state.hasToolCalls) return "tool-calls"
-    return state.finishReason.normalized
-  })()
-  const events: LLMEvent[] = []
-  Lifecycle.finish(state.lifecycle, events, {
-    reason: {
-      ...state.finishReason,
-      normalized,
-    },
-    usage: state.usage,
-  })
-  return events
-}
+const onHalt = (state: ParserState): ReadonlyArray<LLMEvent> =>
+  state.pendingFinish
+    ? (() => {
+        const events: LLMEvent[] = []
+        Lifecycle.finish(state.lifecycle, events, {
+          reason: {
+            ...state.pendingFinish.reason,
+            normalized:
+              state.pendingFinish.reason.normalized === "stop" && state.hasToolCalls
+                ? "tool-calls"
+                : state.pendingFinish.reason.normalized,
+          },
+          usage: state.pendingFinish.usage,
+        })
+        return events
+      })()
+    : []

 // =============================================================================
 // Protocol And Bedrock Route
@@ -766,12 +703,10 @@ export const protocol = Protocol.make({
    initial: (request) => ({
      providerMetadataKey: request.model.route.providerMetadataKey ?? String(request.model.provider),
      tools: ToolStream.empty<number>(),
-      finishReason: undefined,
-      usage: undefined,
+      pendingFinish: undefined,
      hasToolCalls: false,
      lifecycle: Lifecycle.initial(),
      reasoningSignatures: {},
-      reasoningRedactedContent: {},
    }),
    step,
    onHalt: (state) => Effect.succeed(onHalt(state)),
@@ -1,7 +1,7 @@
 import { EventStreamCodec } from "@smithy/eventstream-codec"
 import { fromUtf8, toUtf8 } from "@smithy/util-utf8"
 import { Effect, Encoding, Stream } from "effect"
-import { AIError, AIErrorReason, InvalidProviderOutputError } from "../schema/index.js"
+import { AIError, AIErrorReason } from "../schema/index.js"
 import { Framing } from "../route/framing.js"
 import { ProviderShared } from "./shared.js"

@@ -22,10 +22,6 @@ interface FrameBufferState {

 const initialFrameBuffer: FrameBufferState = { buffer: new Uint8Array(0), offset: 0 }

-type FrameInput = { readonly _tag: "Chunk"; readonly bytes: Uint8Array } | { readonly _tag: "End" }
-
-const endOfStream: FrameInput = { _tag: "End" }
-
 const appendChunk = (state: FrameBufferState, chunk: Uint8Array): FrameBufferState => {
  const remaining = state.buffer.length - state.offset
  // Compact: drop the consumed prefix and append the new chunk in one alloc.
@@ -37,23 +33,9 @@ const appendChunk = (state: FrameBufferState, chunk: Uint8Array): FrameBufferSta
  return { buffer: next, offset: 0 }
 }

-const consumeFrames = (route: string) => (state: FrameBufferState, input: FrameInput) =>
+const consumeFrames = (route: string) => (state: FrameBufferState, chunk: Uint8Array) =>
  Effect.gen(function* () {
-    if (input._tag === "End") {
-      const remaining = state.buffer.subarray(state.offset)
-      if (remaining.length > 0)
-        return yield* new AIError({
-          reason: new InvalidProviderOutputError({
-            route,
-            classification: "incomplete-stream",
-            message: `Incomplete Bedrock Converse event-stream frame: ${remaining.length} buffered bytes remain at end of stream`,
-            body: Encoding.encodeBase64(remaining),
-          }),
-        })
-      return [state, []] as const
-    }
-
-    let cursor = appendChunk(state, input.bytes)
+    let cursor = appendChunk(state, chunk)
    const out: object[] = []
    while (cursor.buffer.length - cursor.offset >= 4) {
      const view = cursor.buffer.subarray(cursor.offset)
@@ -131,12 +113,7 @@ const consumeFrames = (route: string) => (state: FrameBufferState, input: FrameI
 export const framing = (route: string): Framing.Definition<object> => ({
  id: "aws-event-stream",
  body: (frame) => ("rawBody" in frame && typeof frame.rawBody === "string" ? frame.rawBody : undefined),
-  frame: (bytes) =>
-    bytes.pipe(
-      Stream.map((bytes): FrameInput => ({ _tag: "Chunk", bytes })),
-      Stream.concat(Stream.succeed(endOfStream)),
-      Stream.mapAccumEffect(() => initialFrameBuffer, consumeFrames(route)),
-    ),
+  frame: (bytes) => bytes.pipe(Stream.mapAccumEffect(() => initialFrameBuffer, consumeFrames(route))),
 })

 export * as BedrockEventStream from "./bedrock-event-stream.js"
@@ -1,198 +0,0 @@
-import { Effect, Schema } from "effect"
-import type { HttpClientResponse } from "effect/unstable/http"
-import type { Status } from "../generation.js"
-import { Media } from "../media.js"
-import { MediaProtocol } from "../route/media-protocol.js"
-import { MediaRoute } from "../route/media.js"
-import { ProviderID, mergeJsonRecords } from "../schema/index.js"
-import { VideoModel, VideoResponse, type VideoRequestFor } from "../video.js"
-import { ProviderShared, optionalNull } from "./shared.js"
-
-const ADAPTER = "fal-video"
-const NAME = "fal Video"
-const PROVIDER = ProviderID.make("fal")
-export const DEFAULT_BASE_URL = "https://queue.fal.run"
-
-// ---------------------------------------------------------------------------
-// 1. Public model input
-// ---------------------------------------------------------------------------
-
-export type FalVideoString<Known extends string> = Known | (string & {})
-
-/**
- * Provider-native input. fal video endpoints are model-specific: `duration` is a string enum whose values differ per
- * model (`"8s"` for Veo, `"5"` for Kling), and last-frame fields are named per model (`end_image_url`,
- * `last_frame_url`, `tail_image_url`), so those pass through here instead of lowering from common fields.
- */
-export type FalVideoOptions = {
-  readonly duration?: FalVideoString<"4s" | "6s" | "8s" | "5" | "10">
-} & Record<string, unknown>
-
-export type Request = VideoRequestFor<FalVideoOptions>
-
-// ---------------------------------------------------------------------------
-// 2. Token and response schemas
-// ---------------------------------------------------------------------------
-
-/** fal hands back absolute follow-up URLs on submit; they are authoritative for status, result, and cancel. */
-export const Token = Schema.Struct({
-  requestID: Schema.String,
-  statusURL: Schema.String,
-  responseURL: Schema.String,
-  cancelURL: Schema.String,
-})
-export type Token = Schema.Schema.Type<typeof Token>
-
-const StartResponse = Schema.Struct({
-  request_id: Schema.String,
-  status_url: Schema.String,
-  response_url: Schema.String,
-  cancel_url: Schema.String,
-  queue_position: optionalNull(Schema.Number),
-})
-
-const QueueStatus = Schema.Struct({
-  status: Schema.String,
-  queue_position: optionalNull(Schema.Number),
-  error: optionalNull(Schema.Unknown),
-})
-
-const QueueResult = Schema.StructWithRest(
-  Schema.Struct({
-    video: Schema.Struct({
-      url: Schema.String,
-      content_type: optionalNull(Schema.String),
-      file_name: optionalNull(Schema.String),
-      file_size: optionalNull(Schema.Number),
-    }),
-    seed: optionalNull(Schema.Number),
-  }),
-  [Schema.Record(Schema.String, Schema.Unknown)],
-)
-
-const STATUS = {
-  IN_QUEUE: "queued",
-  IN_PROGRESS: "running",
-  COMPLETED: "completed",
-} as const satisfies Record<string, Status>
-
-// ---------------------------------------------------------------------------
-// 5. Request body construction
-// ---------------------------------------------------------------------------
-
-// fal accepts public URLs and data URIs; there is no provider file handle to forward.
-const mediaUrl = (asset: Media.Asset) =>
-  ProviderShared.mediaReference(asset, undefined, NAME).pipe(Effect.map((reference) => reference.value))
-
-const fromRequest = Effect.fn("FalVideo.fromRequest")(function* (request: Request) {
-  if (request.frames?.last !== undefined)
-    return yield* ProviderShared.unsupportedOperation({
-      operation: "video.frames.last",
-      provider: PROVIDER,
-      route: ADAPTER,
-      message: `${NAME} names the last frame per model; pass it through providerOptions (e.g. end_image_url) instead of frames.last`,
-    })
-  const imageUrl = request.frames?.first === undefined ? undefined : yield* mediaUrl(request.frames.first)
-  const videoUrl = request.video === undefined ? undefined : yield* mediaUrl(request.video)
-  return MediaProtocol.json(
-    mergeJsonRecords(
-      {
-        prompt: request.prompt,
-        negative_prompt: request.negativePrompt,
-        seed: request.seed,
-        aspect_ratio: request.aspectRatio,
-        resolution: request.resolution,
-        generate_audio: request.audio,
-        image_url: imageUrl,
-        video_url: videoUrl,
-      },
-      request.providerOptions,
-      request.http?.body,
-    ) ?? {},
-  )
-})
-
-// ---------------------------------------------------------------------------
-// 6. Response decoding
-// ---------------------------------------------------------------------------
-
-const decodeStart = MediaProtocol.decodeStarted(ADAPTER, NAME, StartResponse, (value) => ({
-  token: {
-    requestID: value.request_id,
-    statusURL: value.status_url,
-    responseURL: value.response_url,
-    cancelURL: value.cancel_url,
-  },
-  snapshot: { id: value.request_id, status: "queued", position: value.queue_position ?? undefined },
-}))
-
-const decodeQueueStatus = MediaProtocol.decodeJson(ADAPTER, NAME, QueueStatus)
-const decodeQueueResult = MediaProtocol.decodeJson(ADAPTER, NAME, QueueResult)
-
-const decodeStatus = Effect.fn("FalVideo.decodeStatus")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-  context: MediaProtocol.PollContext<Token>,
-) {
-  const output = yield* decodeQueueStatus(response)
-  const decoded = output.value
-  const status = yield* MediaProtocol.status(STATUS, decoded.status, output)
-  // fal reports request failures as COMPLETED with an `error`; the response endpoint carries the details.
-  const failed = status === "completed" && decoded.error !== undefined && decoded.error !== null
-  return {
-    id: context.token.requestID,
-    status: failed ? "failed" : status,
-    position: status === "queued" ? (decoded.queue_position ?? undefined) : undefined,
-  }
-})
-
-const decodeResult = Effect.fn("FalVideo.decodeResult")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-  context: MediaProtocol.PollContext<Token>,
-) {
-  const output = yield* decodeQueueResult(response)
-  const { video, seed, ...rest } = output.value
-  return new VideoResponse({
-    videos: [Media.url(video.url, { mediaType: video.content_type ?? "video/mp4" })],
-    providerMetadata: {
-      fal: {
-        requestId: context.token.requestID,
-        seed: seed ?? undefined,
-        fileName: video.file_name ?? undefined,
-        fileSize: video.file_size ?? undefined,
-        ...rest,
-      },
-    },
-  })
-})
-
-// ---------------------------------------------------------------------------
-// 7. Protocol and route
-// ---------------------------------------------------------------------------
-
-export const protocol = MediaProtocol.queued<Request, VideoResponse, Token>({
-  id: ADAPTER,
-  name: NAME,
-  token: Token,
-  unsupported: ["n", "durationSeconds", "references"],
-  start: { body: { from: fromRequest }, decode: decodeStart },
-  status: { path: (token) => token.statusURL, decode: decodeStatus },
-  result: { path: (token) => token.responseURL, decode: decodeResult },
-  cancel: { method: "PUT", path: (token) => token.cancelURL },
-})
-
-export const model = (input: MediaRoute.ModelInput) =>
-  VideoModel.fromRoute<FalVideoOptions, Token>(
-    {
-      id: ADAPTER,
-      provider: PROVIDER,
-      protocol,
-      baseURL: DEFAULT_BASE_URL,
-      path: ({ request }) => `/${request.model.id}`,
-    },
-    input,
-  )
-
-export const FalVideo = {
-  protocol,
-  model,
-} as const
@@ -1,5 +1,5 @@
 import { Effect, Option, Schema } from "effect"
-import { Tool } from "@opencode/schema/tool"
+import { Tool } from "@opencode-ai/schema/tool"
 import { Route } from "../route/client.js"
 import { Auth } from "../route/auth.js"
 import { Endpoint } from "../route/endpoint.js"
@@ -14,14 +14,12 @@ import {
  type LLMRequest,
  type MediaPart,
  type ProviderMetadata,
-  type ProviderOptions,
  type TextPart,
  type ToolCallPart,
  type ToolDefinition,
 } from "../schema/index.js"
 import { classifyProviderFailure } from "../provider-error.js"
-import { Media } from "../media.js"
-import { JsonObject, knownString, lenient, optionalArray, optionalNull, ProviderShared } from "./shared.js"
+import { JsonObject, optionalArray, optionalNull, ProviderShared } from "./shared.js"
 import { GeminiToolSchema } from "./utils/gemini-tool-schema.js"
 import { Lifecycle } from "./utils/lifecycle.js"
 import { ToolSchemaProjection } from "./utils/tool-schema.js"
@@ -52,8 +50,35 @@ const omitsFunctionCallIds = (modelID: string) => {
  return match !== null && Number(match[1]) < 3
 }

-/** Caller-facing provider options; unknown keys are accepted and ignored. */
-export type OptionsInput = ProviderOptions & typeof Options.Encoded
+export interface OptionsInput {
+  readonly [key: string]: unknown
+  readonly cachedContent?: string
+  readonly safetySettings?: ReadonlyArray<{
+    readonly category:
+      | "HARM_CATEGORY_UNSPECIFIED"
+      | "HARM_CATEGORY_HATE_SPEECH"
+      | "HARM_CATEGORY_DANGEROUS_CONTENT"
+      | "HARM_CATEGORY_HARASSMENT"
+      | "HARM_CATEGORY_SEXUALLY_EXPLICIT"
+      | "HARM_CATEGORY_CIVIC_INTEGRITY"
+      | (string & {})
+    readonly threshold:
+      | "HARM_BLOCK_THRESHOLD_UNSPECIFIED"
+      | "BLOCK_LOW_AND_ABOVE"
+      | "BLOCK_MEDIUM_AND_ABOVE"
+      | "BLOCK_ONLY_HIGH"
+      | "BLOCK_NONE"
+      | "OFF"
+      | (string & {})
+  }>
+  readonly serviceTier?: "standard" | "flex" | "priority" | (string & {})
+  readonly thinkingConfig?: {
+    readonly thinkingBudget?: number
+    readonly includeThoughts?: boolean
+    readonly thinkingLevel?: "minimal" | "low" | "medium" | "high" | (string & {})
+  }
+}
+
 export type ProviderOptionsInput = OptionsInput

 // =============================================================================
@@ -75,18 +100,9 @@ const GeminiInlineDataPart = Schema.Struct({
    mimeType: Schema.String,
    data: Schema.String,
  }),
-  thoughtSignature: optionalNull(Schema.String),
 })
 type GeminiInlineDataPart = Schema.Schema.Type<typeof GeminiInlineDataPart>

-/** Gemini Files API reference; the only remote input Gemini accepts. */
-const GeminiFileDataPart = Schema.Struct({
-  fileData: Schema.Struct({
-    mimeType: Schema.String,
-    fileUri: Schema.String,
-  }),
-})
-
 const GeminiFunctionCallPart = Schema.Struct({
  functionCall: Schema.Struct({
    id: optionalNull(Schema.String),
@@ -108,7 +124,6 @@ const GeminiFunctionResponsePart = Schema.Struct({
 const GeminiContentPart = Schema.Union([
  GeminiTextPart,
  GeminiInlineDataPart,
-  GeminiFileDataPart,
  GeminiFunctionCallPart,
  GeminiFunctionResponsePart,
 ])
@@ -146,50 +161,17 @@ const GeminiToolConfig = Schema.Struct({
  }),
 })

-const GeminiThinkingLevel = knownString<"minimal" | "low" | "medium" | "high">()
 const GeminiThinkingConfig = Schema.Struct({
  thinkingBudget: Schema.optional(Schema.Number),
  includeThoughts: Schema.optional(Schema.Boolean),
-  thinkingLevel: Schema.optional(GeminiThinkingLevel),
+  thinkingLevel: Schema.optional(Schema.String),
 })

 const GeminiSafetySetting = Schema.Struct({
-  category: knownString<
-    | "HARM_CATEGORY_UNSPECIFIED"
-    | "HARM_CATEGORY_HATE_SPEECH"
-    | "HARM_CATEGORY_DANGEROUS_CONTENT"
-    | "HARM_CATEGORY_HARASSMENT"
-    | "HARM_CATEGORY_SEXUALLY_EXPLICIT"
-    | "HARM_CATEGORY_CIVIC_INTEGRITY"
-  >(),
-  threshold: knownString<
-    | "HARM_BLOCK_THRESHOLD_UNSPECIFIED"
-    | "BLOCK_LOW_AND_ABOVE"
-    | "BLOCK_MEDIUM_AND_ABOVE"
-    | "BLOCK_ONLY_HIGH"
-    | "BLOCK_NONE"
-    | "OFF"
-  >(),
+  category: Schema.String,
+  threshold: Schema.String,
 })

-// =============================================================================
-// Provider Options
-// =============================================================================
-// Malformed fields are dropped rather than failing the request; a `thinkingConfig`
-// object that omits `includeThoughts` asks for thoughts.
-const GeminiThinkingConfigInput = Schema.Struct({
-  thinkingBudget: lenient(Schema.Number),
-  includeThoughts: lenient(Schema.Boolean),
-  thinkingLevel: lenient(GeminiThinkingLevel),
-})
-const Options = Schema.Struct({
-  cachedContent: lenient(Schema.String),
-  safetySettings: lenient(Schema.Array(GeminiSafetySetting)),
-  serviceTier: lenient(knownString<"standard" | "flex" | "priority">()),
-  thinkingConfig: lenient(GeminiThinkingConfigInput),
-})
-const decodeOptions = ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))
-
 const GeminiGenerationConfig = Schema.Struct({
  maxOutputTokens: Schema.optional(Schema.Number),
  temperature: Schema.optional(Schema.Number),
@@ -258,10 +240,6 @@ interface ParserState {
  readonly lifecycle: Lifecycle.State
  readonly reasoningSignature?: string
  readonly textSignature?: string
-  readonly reasoningId?: string
-  readonly textId?: string
-  readonly nextReasoningId: number
-  readonly nextTextId: number
  readonly seenCallIds?: ReadonlySet<string>
 }

@@ -305,13 +283,9 @@ const lowerToolConfig = (toolChoice: NonNullable<LLMRequest["toolChoice"]>) =>
    tool: (name) => ({ functionCallingConfig: { mode: "ANY" as const, allowedFunctionNames: [name] } }),
  })

-// Gemini does not fetch public URLs; inline payloads and Gemini Files references are the accepted inputs.
-const lowerContentPart = Effect.fn("Gemini.lowerContentPart")(function* (part: TextPart | MediaPart) {
+const lowerUserPart = Effect.fn("Gemini.lowerUserPart")(function* (part: TextPart | MediaPart) {
  if (part.type === "text") return { text: part.text }
-  const source = part.media.source
-  if (source.type === "ref" && source.provider === "google")
-    return { fileData: { mimeType: part.media.mediaType, fileUri: source.id } }
-  const media = yield* ProviderShared.requireInlineMedia("Gemini", part.media)
+  const media = ProviderShared.normalizeMedia(part)
  return { inlineData: { mimeType: media.mime, data: media.base64 } }
 })

@@ -359,7 +333,7 @@ const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMR
      for (const part of message.content) {
        if (!ProviderShared.supportsContent(part, ["text", "media"]))
          return yield* ProviderShared.unsupportedContent("Gemini", "user", ["text", "media"])
-        parts.push(yield* lowerContentPart(part))
+        parts.push(yield* lowerUserPart(part))
      }
      contents.push({ role: "user", parts })
      continue
@@ -370,23 +344,12 @@ const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMR
      // Parallel Gemini 3 calls may carry one signature on the first call; unsigned sibling calls are valid.
      let hasSignedToolCall = false
      for (const part of message.content) {
-        if (!ProviderShared.supportsContent(part, ["text", "reasoning", "tool-call", "media"]))
-          return yield* ProviderShared.unsupportedContent("Gemini", "assistant", [
-            "text",
-            "reasoning",
-            "tool-call",
-            "media",
-          ])
+        if (!ProviderShared.supportsContent(part, ["text", "reasoning", "tool-call"]))
+          return yield* ProviderShared.unsupportedContent("Gemini", "assistant", ["text", "reasoning", "tool-call"])
        if (part.type === "text") {
          parts.push({ text: part.text, thoughtSignature: thoughtSignature(part.providerMetadata, metadataKey) })
          continue
        }
-        // Generated images replay as model-role inline data so multi-turn image editing keeps the prior output.
-        if (part.type === "media") {
-          const lowered = yield* lowerContentPart(part)
-          parts.push({ ...lowered, thoughtSignature: thoughtSignature(part.providerMetadata, metadataKey) })
-          continue
-        }
        if (part.type === "reasoning") {
          parts.push({
            text: part.text,
@@ -436,7 +399,7 @@ const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMR
      const media: GeminiInlineDataPart[] = []
      for (const item of content) {
        if (item.type === "text") continue
-        const value = yield* ProviderShared.requireInlineMedia("Gemini", ProviderShared.toolFileMedia(item).media)
+        const value = ProviderShared.normalizeToolFile(item)
        media.push({ inlineData: { mimeType: value.mime, data: value.base64 } })
      }
      if (legacyToolMedia && media.length > 0) (pendingMedia ??= []).push(...media)
@@ -464,11 +427,43 @@ const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMR
  return contents
 })

+const resolveOptions = (request: LLMRequest) => {
+  const input = request.providerOptions
+  const value = input?.thinkingConfig
+  const thinkingConfig = {
+    thinkingBudget:
+      ProviderShared.isRecord(value) && typeof value.thinkingBudget === "number" ? value.thinkingBudget : undefined,
+    includeThoughts:
+      ProviderShared.isRecord(value) && typeof value.includeThoughts === "boolean"
+        ? value.includeThoughts
+        : ProviderShared.isRecord(value)
+          ? true
+          : undefined,
+    thinkingLevel:
+      ProviderShared.isRecord(value) && typeof value.thinkingLevel === "string" ? value.thinkingLevel : undefined,
+  }
+  return {
+    cachedContent: typeof input?.cachedContent === "string" ? input.cachedContent : undefined,
+    safetySettings: mapSafetySettings(input?.safetySettings),
+    serviceTier: typeof input?.serviceTier === "string" ? input.serviceTier : undefined,
+    thinkingConfig: Object.values(thinkingConfig).some((item) => item !== undefined) ? thinkingConfig : undefined,
+  }
+}
+
+function mapSafetySettings(value: unknown) {
+  if (!Array.isArray(value)) return undefined
+  const settings = value.flatMap((item) =>
+    ProviderShared.isRecord(item) && typeof item.category === "string" && typeof item.threshold === "string"
+      ? [{ category: item.category, threshold: item.threshold }]
+      : [],
+  )
+  return settings
+}
+
 const fromRequest = Effect.fn("Gemini.fromRequest")(function* (request: LLMRequest) {
-  const flattened = ProviderShared.flattenToolRequest(request)
-  const hasTools = flattened.tools.length > 0
+  const hasTools = request.tools.length > 0
  const generation = request.generation
-  const options = yield* decodeOptions(request.providerOptions ?? {})
+  const options = resolveOptions(request)
  const toolSchemaCompatibility = request.model.compatibility?.toolSchema
  const generationConfig = {
    maxOutputTokens: generation?.maxTokens,
@@ -479,15 +474,12 @@ const fromRequest = Effect.fn("Gemini.fromRequest")(function* (request: LLMReque
    presencePenalty: generation?.presencePenalty,
    seed: generation?.seed,
    stopSequences: generation?.stop,
-    thinkingConfig:
-      options.thinkingConfig === undefined
-        ? undefined
-        : { ...options.thinkingConfig, includeThoughts: options.thinkingConfig.includeThoughts ?? true },
+    thinkingConfig: options.thinkingConfig,
  }

  return {
    cachedContent: options.cachedContent,
-    contents: yield* lowerMessages(flattened.request),
+    contents: yield* lowerMessages(request),
    safetySettings: options.safetySettings,
    serviceTier: options.serviceTier,
    systemInstruction:
@@ -495,7 +487,7 @@ const fromRequest = Effect.fn("Gemini.fromRequest")(function* (request: LLMReque
    tools: hasTools
      ? [
          {
-            functionDeclarations: flattened.tools.map((tool) =>
+            functionDeclarations: request.tools.map((tool) =>
              lowerTool(tool, ToolSchemaProjection.modelCompatibility(tool.inputSchema, toolSchemaCompatibility)),
            ),
          },
@@ -579,23 +571,19 @@ const finish = (state: ParserState): ReadonlyArray<LLMEvent> => {

  const events: LLMEvent[] = []
  let lifecycle = state.lifecycle
-  if (state.reasoningId !== undefined)
+  if (state.reasoningSignature !== undefined)
    lifecycle = Lifecycle.reasoningEnd(
      lifecycle,
      events,
-      state.reasoningId,
-      state.reasoningSignature === undefined
-        ? undefined
-        : providerMetadata(state.providerMetadataKey, { thoughtSignature: state.reasoningSignature }),
+      "reasoning-0",
+      providerMetadata(state.providerMetadataKey, { thoughtSignature: state.reasoningSignature }),
    )
-  if (state.textId !== undefined)
+  if (state.textSignature !== undefined)
    lifecycle = Lifecycle.textEnd(
      lifecycle,
      events,
-      state.textId,
-      state.textSignature === undefined
-        ? undefined
-        : providerMetadata(state.providerMetadataKey, { thoughtSignature: state.textSignature }),
+      "text-0",
+      providerMetadata(state.providerMetadataKey, { thoughtSignature: state.textSignature }),
    )
  Lifecycle.finish(lifecycle, events, {
    reason: {
@@ -613,27 +601,18 @@ const finish = (state: ParserState): ReadonlyArray<LLMEvent> => {
 }

 const step = (state: ParserState, event: GeminiEvent) => {
-  if (ProviderShared.isRecord(event.error)) {
+  if (ProviderShared.isRecord(event.error) && typeof event.error.message === "string") {
    const body = ProviderShared.encodeJson(event)
    return Effect.fail(
      new AIError({
        reason: classifyProviderFailure({
-          message:
-            typeof event.error.message === "string" && event.error.message.length > 0
-              ? event.error.message
-              : typeof event.error.status === "string" && event.error.status.length > 0
-                ? event.error.status
-                : "Gemini provider error",
+          message: event.error.message,
          status: typeof event.error.code === "number" ? event.error.code : undefined,
          rawBody: body,
        }),
      }),
    )
  }
-  if ("error" in event)
-    return Effect.fail(
-      ProviderShared.eventError(state.route, `Invalid ${state.route} stream event`, ProviderShared.encodeJson(event)),
-    )
  const nextState = {
    ...state,
    promptFeedback: event.promptFeedback ?? state.promptFeedback,
@@ -642,14 +621,6 @@ const step = (state: ParserState, event: GeminiEvent) => {
      : state.usage,
  }
  const candidate = event.candidates?.[0]
-  if (candidate?.finishReason && mapFinishReason(candidate.finishReason, state.hasToolCalls) === "error")
-    return Effect.fail(
-      ProviderShared.eventError(
-        state.route,
-        `Gemini stopped with ${candidate.finishReason}`,
-        ProviderShared.encodeJson(event),
-      ),
-    )
  if (!candidate?.content)
    return Effect.succeed([
      { ...nextState, finishReason: candidate?.finishReason ?? nextState.finishReason },
@@ -661,10 +632,6 @@ const step = (state: ParserState, event: GeminiEvent) => {
  let lifecycle = nextState.lifecycle
  let reasoningSignature = nextState.reasoningSignature
  let textSignature = nextState.textSignature
-  let reasoningId = nextState.reasoningId
-  let textId = nextState.textId
-  let nextReasoningId = nextState.nextReasoningId
-  let nextTextId = nextState.nextTextId
  // Supplier ids must be tracked across chunks of the same response, not just within one event's parts.
  const seenCallIds = new Set(nextState.seenCallIds)

@@ -688,66 +655,29 @@ const step = (state: ParserState, event: GeminiEvent) => {
    // each block kind must retain the signature attached to its own parts.
    if (signature !== undefined && "thought" in part && part.thought) reasoningSignature = signature
    else if (signature !== undefined && "text" in part) textSignature = signature
-    // Image-capable Gemini models return generated images as inline data parts; surface them as first-class output.
-    if ("inlineData" in part) {
-      lifecycle = Lifecycle.stepStart(lifecycle, events)
-      events.push(
-        LLMEvent.media({
-          media: Media.base64(part.inlineData.data, part.inlineData.mimeType),
-          providerMetadata: signature
-            ? providerMetadata(state.providerMetadataKey, { thoughtSignature: signature })
-            : undefined,
-        }),
-      )
-      continue
-    }
    if ("text" in part && part.text.length > 0) {
      if (part.thought) {
-        if (textId !== undefined) {
-          lifecycle = Lifecycle.textEnd(
-            lifecycle,
-            events,
-            textId,
-            textSignature
-              ? providerMetadata(state.providerMetadataKey, { thoughtSignature: textSignature })
-              : undefined,
-          )
-          textId = undefined
-          textSignature = undefined
-        }
-        if (reasoningId === undefined) {
-          reasoningId = `reasoning-${nextReasoningId}`
-          nextReasoningId += 1
-        }
        lifecycle = Lifecycle.reasoningDelta(
          lifecycle,
          events,
-          reasoningId,
+          "reasoning-0",
          part.text,
          signature ? providerMetadata(state.providerMetadataKey, { thoughtSignature: signature }) : undefined,
        )
        continue
      }
-      if (reasoningId !== undefined) {
-        lifecycle = Lifecycle.reasoningEnd(
-          lifecycle,
-          events,
-          reasoningId,
-          reasoningSignature
-            ? providerMetadata(state.providerMetadataKey, { thoughtSignature: reasoningSignature })
-            : undefined,
-        )
-        reasoningId = undefined
-        reasoningSignature = undefined
-      }
-      if (textId === undefined) {
-        textId = `text-${nextTextId}`
-        nextTextId += 1
-      }
+      lifecycle = Lifecycle.reasoningEnd(
+        lifecycle,
+        events,
+        "reasoning-0",
+        reasoningSignature
+          ? providerMetadata(state.providerMetadataKey, { thoughtSignature: reasoningSignature })
+          : undefined,
+      )
      lifecycle = Lifecycle.textDelta(
        lifecycle,
        events,
-        textId,
+        "text-0",
        part.text,
        textSignature ? providerMetadata(state.providerMetadataKey, { thoughtSignature: textSignature }) : undefined,
      )
@@ -765,28 +695,14 @@ const step = (state: ParserState, event: GeminiEvent) => {
      const duplicate = supplied !== undefined && seenCallIds.has(supplied)
      if (supplied !== undefined) seenCallIds.add(supplied)
      const id = supplied !== undefined && !duplicate ? supplied : `tool_${crypto.randomUUID().replaceAll("-", "")}`
-      if (reasoningId !== undefined) {
-        lifecycle = Lifecycle.reasoningEnd(
-          lifecycle,
-          events,
-          reasoningId,
-          reasoningSignature
-            ? providerMetadata(state.providerMetadataKey, { thoughtSignature: reasoningSignature })
-            : undefined,
-        )
-        reasoningId = undefined
-        reasoningSignature = undefined
-      }
-      if (textId !== undefined) {
-        lifecycle = Lifecycle.textEnd(
-          lifecycle,
-          events,
-          textId,
-          textSignature ? providerMetadata(state.providerMetadataKey, { thoughtSignature: textSignature }) : undefined,
-        )
-        textId = undefined
-        textSignature = undefined
-      }
+      lifecycle = Lifecycle.reasoningEnd(
+        lifecycle,
+        events,
+        "reasoning-0",
+        reasoningSignature
+          ? providerMetadata(state.providerMetadataKey, { thoughtSignature: reasoningSignature })
+          : undefined,
+      )
      lifecycle = Lifecycle.stepStart(lifecycle, events)
      events.push(
        LLMEvent.toolCall({
@@ -809,10 +725,6 @@ const step = (state: ParserState, event: GeminiEvent) => {
      lifecycle,
      reasoningSignature,
      textSignature,
-      reasoningId,
-      textId,
-      nextReasoningId,
-      nextTextId,
      seenCallIds,
      finishReason: candidate.finishReason ?? nextState.finishReason,
    },
@@ -840,8 +752,6 @@ export const protocol = Protocol.make({
      providerMetadataKey: request.model.route.providerMetadataKey ?? String(request.model.provider),
      hasToolCalls: false,
      lifecycle: Lifecycle.initial(),
-      nextReasoningId: 0,
-      nextTextId: 0,
    }),
    step,
    onHalt: (state) => Effect.succeed(finish(state)),
@@ -1,36 +1,40 @@
-import { Effect, Schema } from "effect"
-import type { HttpClientResponse } from "effect/unstable/http"
-import { ImageModel, ImageResponse, type ImageRequestFor } from "../image.js"
-import { Media } from "../media.js"
-import { MediaProtocol } from "../route/media-protocol.js"
-import { MediaRoute } from "../route/media.js"
-import { ProviderID, mergeJsonRecords, type AIError } from "../schema/index.js"
+import { Effect, Encoding, Schema } from "effect"
+import { Headers, HttpClientRequest } from "effect/unstable/http"
+import {
+  GeneratedImage,
+  ImageModel,
+  ImageResponse,
+  type ImageInput,
+  type ImageRequestFor,
+  type ImageRoute,
+} from "../image.js"
+import { Auth, type Definition as AuthDefinition } from "../route/auth.js"
+import { AIError, Usage, mergeHttpOptions, mergeJsonRecords, type HttpOptions } from "../schema/index.js"
 import { ProviderShared } from "./shared.js"
-import { MediaInput } from "./utils/media-input.js"
+import { ImageInputs } from "./utils/image-input.js"

 const ADAPTER = "google-images"
-const NAME = "Google Images"
-const PROVIDER = ProviderID.make("google")
 export const DEFAULT_BASE_URL = "https://generativelanguage.googleapis.com/v1beta"

-// ---------------------------------------------------------------------------
-// 1. Public model input
-// ---------------------------------------------------------------------------
-
 export type GoogleImageString<Known extends string> = Known | (string & {})

-/** Provider-native options. Common fields (`aspectRatio`, `seed`, `images`) live on the request. */
 export type GoogleImageOptions = {
+  readonly aspectRatio?: GoogleImageString<
+    "1:1" | "2:3" | "3:2" | "3:4" | "4:3" | "4:5" | "5:4" | "9:16" | "16:9" | "21:9"
+  >
  readonly imageSize?: GoogleImageString<"1K" | "2K" | "4K">
+  readonly seed?: number
  readonly thinkingLevel?: GoogleImageString<"MINIMAL" | "LOW" | "MEDIUM" | "HIGH">
  readonly includeThoughts?: boolean
 } & Record<string, unknown>

-export type Request = ImageRequestFor<GoogleImageOptions>
-
-// ---------------------------------------------------------------------------
-// 2. Response schema
-// ---------------------------------------------------------------------------
+export type GoogleImageBody = Record<string, unknown> & {
+  readonly contents: ReadonlyArray<{
+    readonly role: "user"
+    readonly parts: ReadonlyArray<Record<string, unknown>>
+  }>
+  readonly generationConfig: Record<string, unknown>
+}

 const GoogleUsage = Schema.StructWithRest(
  Schema.Struct({
@@ -81,20 +85,30 @@ const GoogleImageResponse = Schema.Struct({
  promptFeedback: Schema.optional(Schema.Unknown),
 })

-// ---------------------------------------------------------------------------
-// 5. Request body construction
-// ---------------------------------------------------------------------------
+export interface ModelInput {
+  readonly id: string
+  readonly auth: AuthDefinition
+  readonly baseURL?: string
+  readonly headers?: Record<string, string>
+  readonly http?: HttpOptions
+}

-const generationConfig = (request: Request) => {
-  const { imageSize, thinkingLevel, includeThoughts, ...native } = request.providerOptions ?? {}
-  const imageConfig = { aspectRatio: request.aspectRatio, imageSize }
-  const thinkingConfig = { thinkingLevel, includeThoughts }
+const nativeOptions = (options: GoogleImageOptions | undefined) => {
+  const { aspectRatio, imageSize, seed, thinkingLevel, includeThoughts, ...native } = options ?? {}
+  const image = {
+    aspectRatio,
+    imageSize,
+  }
+  const thinkingConfig = {
+    thinkingLevel,
+    includeThoughts,
+  }
  return (
    mergeJsonRecords(
      {
        responseModalities: ["IMAGE"],
-        imageConfig: Object.values(imageConfig).some((value) => value !== undefined) ? imageConfig : undefined,
-        seed: request.seed,
+        imageConfig: Object.values(image).some((value) => value !== undefined) ? image : undefined,
+        seed,
        thinkingConfig: Object.values(thinkingConfig).some((value) => value !== undefined) ? thinkingConfig : undefined,
      },
      native,
@@ -102,208 +116,176 @@ const generationConfig = (request: Request) => {
  )
 }

-// Gemini does not fetch public URLs; inline payloads or Gemini Files references are the only accepted inputs.
-const imagePart = (asset: Media.Asset): Effect.Effect<Record<string, unknown>, AIError> => {
-  const inline = asset.inline()
-  if (inline) return Effect.succeed({ inlineData: { mimeType: inline.mime, data: inline.base64 } })
-  const id = MediaInput.refID(asset, PROVIDER)
-  if (id) return Effect.succeed({ fileData: { mimeType: asset.mediaType, fileUri: id } })
-  if (asset.source.type === "ref")
-    return Effect.fail(
-      ProviderShared.invalidRequest(
-        "Google generateContent requires Gemini file references rather than other providers' file IDs",
-      ),
+const applyQuery = (url: string, query: Record<string, string> | undefined) => {
+  if (!query) return url
+  const next = new URL(url)
+  Object.entries(query).forEach(([key, value]) => next.searchParams.set(key, value))
+  return next.toString()
+}
+
+export const model = (input: ModelInput) => {
+  const route: ImageRoute<GoogleImageOptions> = {
+    id: ADAPTER,
+    generate: Effect.fn("GoogleImages.generate")(function* (request: ImageRequestFor<GoogleImageOptions>, execute) {
+      const imageParts = yield* Effect.forEach(request.images ?? [], googleImagePart)
+      const http = mergeHttpOptions(request.model.http, request.http)
+      const requestBody = mergeJsonRecords(
+        {
+          contents: [{ role: "user", parts: [{ text: request.prompt }, ...imageParts] }],
+          generationConfig: nativeOptions(request.options),
+        },
+        http?.body,
+      ) as GoogleImageBody
+      const text = ProviderShared.encodeJson(requestBody)
+      const url = applyQuery(
+        `${(input.baseURL ?? DEFAULT_BASE_URL).replace(/\/$/, "")}/models/${request.model.id}:generateContent`,
+        http?.query,
+      )
+      const headers = yield* Auth.toEffect(input.auth)({
+        request,
+        method: "POST",
+        url,
+        body: text,
+        headers: Headers.fromInput({ ...input.headers, ...http?.headers }),
+      })
+      const response = yield* execute(
+        HttpClientRequest.post(url).pipe(
+          HttpClientRequest.setHeaders(headers),
+          HttpClientRequest.bodyText(text, "application/json"),
+        ),
+      )
+      const output = yield* ProviderShared.imageResponse(ADAPTER, "Google Images", response)
+      const decoded = yield* Schema.decodeUnknownEffect(Schema.fromJsonString(GoogleImageResponse))(output.body).pipe(
+        Effect.mapError((cause) => output.invalid("Google Images returned an invalid response", cause)),
+      )
+      const candidates = decoded.candidates ?? []
+      const candidateMetadata = candidates.map((candidate, candidateIndex) => ({
+        index: candidate.index ?? candidateIndex,
+        finishReason: candidate.finishReason,
+        finishMessage: candidate.finishMessage,
+        safetyRatings: candidate.safetyRatings,
+        citationMetadata: candidate.citationMetadata,
+        groundingMetadata: candidate.groundingMetadata,
+        parts: (candidate.content?.parts ?? []).map((part) =>
+          part.inlineData === undefined
+            ? {
+                type: "text",
+                text: part.text,
+                thought: part.thought,
+                thoughtSignature: part.thoughtSignature,
+              }
+            : {
+                type: "inlineData",
+                mediaType: part.inlineData.mimeType,
+                thought: part.thought,
+                thoughtSignature: part.thoughtSignature,
+              },
+        ),
+      }))
+      const encoded = candidates.flatMap((candidate, candidateIndex) =>
+        (candidate.content?.parts ?? []).flatMap((part, partIndex) =>
+          part.inlineData === undefined || part.thought === true
+            ? []
+            : [{ candidate, candidateIndex, partIndex, inlineData: part.inlineData }],
+        ),
+      )
+      const images = yield* Effect.forEach(encoded, (item) =>
+        Effect.fromResult(Encoding.decodeBase64(item.inlineData.data)).pipe(
+          Effect.mapError((cause) =>
+            output.invalid(
+              `Google Images candidate ${item.candidateIndex} part ${item.partIndex} contains invalid base64 data`,
+              cause,
+            ),
+          ),
+          Effect.map(
+            (data) =>
+              new GeneratedImage({
+                mediaType: item.inlineData.mimeType,
+                data,
+                providerMetadata: {
+                  google: {
+                    candidateIndex: item.candidate.index ?? item.candidateIndex,
+                    partIndex: item.partIndex,
+                    finishReason: item.candidate.finishReason,
+                    safetyRatings: item.candidate.safetyRatings,
+                    citationMetadata: item.candidate.citationMetadata,
+                    groundingMetadata: item.candidate.groundingMetadata,
+                    thoughtSignature: item.candidate.content?.parts[item.partIndex]?.thoughtSignature,
+                  },
+                },
+              }),
+          ),
+        ),
+      )
+      if (images.length === 0) {
+        const finishReasons = candidates.flatMap((candidate) =>
+          candidate.finishReason === undefined ? [] : [candidate.finishReason],
+        )
+        return yield* output.invalid(
+          `Google Images returned no final images${
+            finishReasons.length === 0 ? "" : ` (finish reasons: ${finishReasons.join(", ")})`
+          }; inspect body for prompt feedback and candidate details`,
+        )
+      }
+      const usage = decoded.usageMetadata
+      const outputTokens =
+        usage?.candidatesTokenCount === undefined
+          ? undefined
+          : usage.candidatesTokenCount + (usage.thoughtsTokenCount ?? 0)
+      return new ImageResponse({
+        images,
+        usage:
+          usage === undefined
+            ? undefined
+            : new Usage({
+                inputTokens: usage.promptTokenCount,
+                outputTokens,
+                nonCachedInputTokens: ProviderShared.subtractTokens(
+                  usage.promptTokenCount,
+                  usage.cachedContentTokenCount,
+                ),
+                cacheReadInputTokens: usage.cachedContentTokenCount,
+                reasoningTokens: usage.thoughtsTokenCount,
+                totalTokens: ProviderShared.totalTokens(usage.promptTokenCount, outputTokens, usage.totalTokenCount),
+                providerMetadata: { google: usage },
+              }),
+        providerMetadata: {
+          google: {
+            modelVersion: decoded.modelVersion,
+            responseId: decoded.responseId,
+            promptFeedback: decoded.promptFeedback,
+            candidates: candidateMetadata,
+          },
+        },
+      })
+    }),
+  }
+  return ImageModel.make<GoogleImageOptions>({ id: input.id, provider: "google", route, http: input.http })
+}
+
+const googleImagePart = (image: ImageInput): Effect.Effect<Record<string, unknown>, AIError> => {
+  if (image.type === "bytes")
+    return Effect.succeed({ inlineData: { mimeType: image.mediaType, data: Encoding.encodeBase64(image.data) } })
+  if (image.type === "file-uri") return Effect.succeed({ fileData: { mimeType: image.mediaType, fileUri: image.uri } })
+  if (image.type === "url")
+    return ImageInputs.decodeDataUrl(image.url).pipe(
+      Effect.flatMap((decoded) => {
+        if (decoded === undefined)
+          return Effect.fail(
+            ImageInputs.invalid(
+              "Google generateContent does not fetch public image URLs; use bytes, a data URL, or a Gemini file URI",
+            ),
+          )
+        return Effect.succeed({
+          inlineData: { mimeType: decoded.mediaType, data: Encoding.encodeBase64(decoded.data) },
+        })
+      }),
    )
  return Effect.fail(
-    ProviderShared.invalidRequest(
-      "Google generateContent does not fetch public image URLs; use bytes, a data URL, or a Gemini file reference",
-    ),
+    ImageInputs.invalid("Google generateContent requires Gemini file URIs rather than provider file IDs"),
  )
 }

-const fromRequest = Effect.fn("GoogleImages.fromRequest")(function* (request: Request) {
-  if (request.n !== undefined && request.n > 1)
-    return yield* ProviderShared.unsupportedOperation({
-      operation: "image.n",
-      provider: PROVIDER,
-      route: ADAPTER,
-      message: `${NAME} generates one image per request; call it once per image instead of n=${request.n}`,
-    })
-  const parts = yield* Effect.forEach(request.images ?? [], imagePart)
-  return MediaProtocol.json(
-    mergeJsonRecords(
-      {
-        contents: [{ role: "user", parts: [{ text: request.prompt }, ...parts] }],
-        generationConfig: generationConfig(request),
-      },
-      request.http?.body,
-    ) ?? {},
-  )
-})
-
-// ---------------------------------------------------------------------------
-// 6. Response decoding
-// ---------------------------------------------------------------------------
-
-const decodeResponse = Effect.fn("GoogleImages.decodeResponse")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-) {
-  const output = yield* MediaProtocol.decodeJson(ADAPTER, NAME, GoogleImageResponse)(response)
-  const decoded = output.value
-  const candidates = decoded.candidates ?? []
-  const candidateMetadata = candidates.map((candidate, candidateIndex) => ({
-    index: candidate.index ?? candidateIndex,
-    finishReason: candidate.finishReason,
-    finishMessage: candidate.finishMessage,
-    safetyRatings: candidate.safetyRatings,
-    citationMetadata: candidate.citationMetadata,
-    groundingMetadata: candidate.groundingMetadata,
-    parts: (candidate.content?.parts ?? []).map((part) =>
-      part.inlineData === undefined
-        ? { type: "text", text: part.text, thought: part.thought, thoughtSignature: part.thoughtSignature }
-        : {
-            type: "inlineData",
-            mediaType: part.inlineData.mimeType,
-            thought: part.thought,
-            thoughtSignature: part.thoughtSignature,
-          },
-    ),
-  }))
-  // Thought parts are drafts; only non-thought inline data is a final image.
-  const encoded = candidates.flatMap((candidate, candidateIndex) =>
-    (candidate.content?.parts ?? []).flatMap((part, partIndex) =>
-      part.inlineData === undefined || part.thought === true
-        ? []
-        : [
-            {
-              candidate,
-              candidateIndex,
-              partIndex,
-              inlineData: part.inlineData,
-              thoughtSignature: part.thoughtSignature,
-            },
-          ],
-    ),
-  )
-  const images = yield* Effect.forEach(encoded, (item) =>
-    MediaInput.decodedAsset(
-      output.invalid,
-      `${NAME} candidate ${item.candidateIndex} part ${item.partIndex}`,
-      item.inlineData.data,
-      item.inlineData.mimeType,
-      {
-        providerMetadata: {
-          google: {
-            candidateIndex: item.candidate.index ?? item.candidateIndex,
-            partIndex: item.partIndex,
-            finishReason: item.candidate.finishReason,
-            safetyRatings: item.candidate.safetyRatings,
-            citationMetadata: item.candidate.citationMetadata,
-            groundingMetadata: item.candidate.groundingMetadata,
-            thoughtSignature: item.thoughtSignature,
-          },
-        },
-      },
-    ),
-  )
-  if (images.length === 0) {
-    const finishReasons = candidates.flatMap((candidate) =>
-      candidate.finishReason === undefined ? [] : [candidate.finishReason],
-    )
-    return yield* output.invalid(
-      `${NAME} returned no final images${
-        finishReasons.length === 0 ? "" : ` (finish reasons: ${finishReasons.join(", ")})`
-      }; inspect body for prompt feedback and candidate details`,
-    )
-  }
-  // Candidates that stopped for a safety or policy reason are partial results, not a silent drop.
-  const notices = [
-    ...(decoded.promptFeedback === undefined
-      ? []
-      : [
-          {
-            type: "filtered" as const,
-            message: `${NAME} reported prompt feedback`,
-            providerMetadata: { google: { promptFeedback: decoded.promptFeedback } },
-          },
-        ]),
-    ...candidates.flatMap((candidate, index) =>
-      candidate.finishReason === undefined || candidate.finishReason === "STOP"
-        ? []
-        : [
-            {
-              type: "filtered" as const,
-              message: `${NAME} candidate ${candidate.index ?? index} finished with ${candidate.finishReason}${
-                candidate.finishMessage === undefined ? "" : `: ${candidate.finishMessage}`
-              }`,
-              providerMetadata: {
-                google: {
-                  candidateIndex: candidate.index ?? index,
-                  finishReason: candidate.finishReason,
-                  finishMessage: candidate.finishMessage,
-                  safetyRatings: candidate.safetyRatings,
-                },
-              },
-            },
-          ],
-    ),
-  ]
-  const usage = decoded.usageMetadata
-  const outputTokens =
-    usage?.candidatesTokenCount === undefined ? undefined : usage.candidatesTokenCount + (usage.thoughtsTokenCount ?? 0)
-  return new ImageResponse({
-    images,
-    notices: notices.length === 0 ? undefined : notices,
-    usage:
-      usage === undefined
-        ? undefined
-        : {
-            type: "tokens",
-            input: usage.promptTokenCount,
-            output: outputTokens,
-            total: ProviderShared.totalTokens(usage.promptTokenCount, outputTokens, usage.totalTokenCount),
-            details: {
-              reasoningTokens: usage.thoughtsTokenCount,
-              cacheReadInputTokens: usage.cachedContentTokenCount,
-              google: usage,
-            },
-          },
-    providerMetadata: {
-      google: {
-        modelVersion: decoded.modelVersion,
-        responseId: decoded.responseId,
-        promptFeedback: decoded.promptFeedback,
-        candidates: candidateMetadata,
-      },
-    },
-  })
-})
-
-// ---------------------------------------------------------------------------
-// 7. Protocol and route
-// ---------------------------------------------------------------------------
-
-export const protocol = MediaProtocol.inline<Request, ImageResponse>({
-  id: ADAPTER,
-  name: NAME,
-  unsupported: ["mask", "size", "format"],
-  body: { from: fromRequest },
-  response: { decode: decodeResponse },
-})
-
-export const model = (input: MediaRoute.ModelInput) =>
-  ImageModel.fromRoute<GoogleImageOptions>(
-    {
-      id: ADAPTER,
-      provider: PROVIDER,
-      protocol,
-      baseURL: DEFAULT_BASE_URL,
-      path: ({ request }) => `/models/${request.model.id}:generateContent`,
-    },
-    input,
-  )
-
 export const GoogleImages = {
-  protocol,
  model,
 } as const
@@ -1,233 +0,0 @@
-import { Duration, Effect, Schema } from "effect"
-import type { HttpClientResponse } from "effect/unstable/http"
-import type { Status } from "../generation.js"
-import { Media } from "../media.js"
-import { MediaProtocol } from "../route/media-protocol.js"
-import { MediaRoute } from "../route/media.js"
-import { ProviderID, mergeJsonRecords } from "../schema/index.js"
-import { VideoModel, VideoResponse, type VideoRequestFor } from "../video.js"
-import { ProviderShared, optionalArray } from "./shared.js"
-
-const ADAPTER = "google-video"
-const NAME = "Google Veo"
-const PROVIDER = ProviderID.make("google")
-export const DEFAULT_BASE_URL = "https://generativelanguage.googleapis.com/v1beta"
-/** Veo keeps generated files for two days; the asset carries that deadline so callers materialize in time. */
-const FILE_RETENTION = Duration.days(2)
-
-// ---------------------------------------------------------------------------
-// 1. Public model input
-// ---------------------------------------------------------------------------
-
-export type GoogleVideoString<Known extends string> = Known | (string & {})
-
-/** Provider-native `parameters`. Common fields (`aspectRatio`, `resolution`, `durationSeconds`, `seed`) live on the request. */
-export type GoogleVideoOptions = {
-  readonly personGeneration?: GoogleVideoString<"allow_all" | "allow_adult" | "dont_allow">
-} & Record<string, unknown>
-
-export type Request = VideoRequestFor<GoogleVideoOptions>
-
-// ---------------------------------------------------------------------------
-// 2. Token and response schemas
-// ---------------------------------------------------------------------------
-
-/** The long-running operation name, e.g. `models/veo-3.1-generate-preview/operations/abc123`. */
-export const Token = Schema.Struct({ operation: Schema.String })
-export type Token = Schema.Schema.Type<typeof Token>
-
-const StartResponse = Schema.Struct({ name: Schema.String })
-
-const Operation = Schema.Struct({
-  done: Schema.optional(Schema.Boolean),
-  error: Schema.optional(Schema.Struct({ message: Schema.optional(Schema.String) })),
-  response: Schema.optional(
-    Schema.Struct({
-      generateVideoResponse: Schema.optional(
-        Schema.Struct({
-          generatedSamples: optionalArray(
-            Schema.Struct({
-              video: Schema.optional(
-                Schema.Struct({
-                  uri: Schema.optional(Schema.String),
-                  mimeType: Schema.optional(Schema.String),
-                }),
-              ),
-            }),
-          ),
-          raiMediaFilteredCount: Schema.optional(Schema.Number),
-          raiMediaFilteredReasons: optionalArray(Schema.String),
-        }),
-      ),
-    }),
-  ),
-  metadata: Schema.optional(Schema.Unknown),
-})
-
-// ---------------------------------------------------------------------------
-// 5. Request body construction
-// ---------------------------------------------------------------------------
-
-// Veo takes inline media only; a prior Veo output is `Media.url` with transient auth, so materialize it first.
-const inlineMedia = (asset: Media.Asset) =>
-  ProviderShared.requireInlineMedia(NAME, asset).pipe(
-    Effect.map((inline) => ({ inlineData: { mimeType: inline.mime, data: inline.base64 } })),
-  )
-
-const fromRequest = Effect.fn("GoogleVideo.fromRequest")(function* (request: Request) {
-  if (request.n !== undefined && request.n > 1)
-    return yield* ProviderShared.unsupportedOperation({
-      operation: "video.n",
-      provider: PROVIDER,
-      route: ADAPTER,
-      message: `${NAME} generates one video per request; call it once per video instead of n=${request.n}`,
-    })
-  if (request.audio === false)
-    return yield* ProviderShared.unsupportedOperation({
-      operation: "video.audio",
-      provider: PROVIDER,
-      route: ADAPTER,
-      message: `${NAME} always generates audio; audio: false cannot be honored`,
-    })
-  if (request.frames?.last !== undefined && request.frames.first === undefined)
-    return yield* ProviderShared.invalidRequest(`${NAME} requires frames.first when frames.last is set`)
-  const image = request.frames?.first === undefined ? undefined : yield* inlineMedia(request.frames.first)
-  const lastFrame = request.frames?.last === undefined ? undefined : yield* inlineMedia(request.frames.last)
-  const video = request.video === undefined ? undefined : yield* inlineMedia(request.video)
-  const referenceImages = yield* Effect.forEach(request.references ?? [], (asset) =>
-    inlineMedia(asset).pipe(Effect.map((image) => ({ image, referenceType: "asset" }))),
-  )
-  return MediaProtocol.json(
-    mergeJsonRecords(
-      {
-        instances: [
-          {
-            prompt: request.prompt,
-            image,
-            lastFrame,
-            referenceImages: referenceImages.length === 0 ? undefined : referenceImages,
-            video,
-          },
-        ],
-        parameters: mergeJsonRecords(
-          {
-            aspectRatio: request.aspectRatio,
-            resolution: request.resolution,
-            durationSeconds: request.durationSeconds,
-            negativePrompt: request.negativePrompt,
-            seed: request.seed,
-          },
-          request.providerOptions,
-        ),
-      },
-      request.http?.body,
-    ) ?? {},
-  )
-})
-
-// ---------------------------------------------------------------------------
-// 6. Response decoding
-// ---------------------------------------------------------------------------
-
-const decodeStart = MediaProtocol.decodeStarted(ADAPTER, NAME, StartResponse, (value) => ({
-  token: { operation: value.name },
-  snapshot: { id: value.name, status: "running" },
-}))
-
-// Operations carry no status string: not done is running, done with `error` failed, otherwise completed.
-const statusOf = (operation: typeof Operation.Type): Status => {
-  if (operation.done !== true) return "running"
-  return operation.error === undefined ? "completed" : "failed"
-}
-
-const decodeOperation = MediaProtocol.decodeJson(ADAPTER, NAME, Operation)
-
-const decodeStatus = Effect.fn("GoogleVideo.decodeStatus")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-  context: MediaProtocol.PollContext<Token>,
-) {
-  const output = yield* decodeOperation(response)
-  return { id: context.token.operation, status: statusOf(output.value) }
-})
-
-const decodeResult = Effect.fn("GoogleVideo.decodeResult")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-  context: MediaProtocol.PollContext<Token>,
-) {
-  const output = yield* decodeOperation(response)
-  const operation = output.value
-  const status = statusOf(operation)
-  if (status === "running")
-    return yield* output.invalid(`${NAME} operation ${context.token.operation} has not finished`)
-  if (status === "failed")
-    return yield* output.ended(
-      "failed",
-      `${NAME} operation failed${operation.error?.message === undefined ? "" : `: ${operation.error.message}`}`,
-    )
-  const generated = operation.response?.generateVideoResponse
-  // Downloads require the same API key as the poll; the asset carries it transiently and follows the redirect.
-  const videos = yield* Effect.forEach(
-    (generated?.generatedSamples ?? []).flatMap((sample) =>
-      sample.video?.uri === undefined ? [] : [{ uri: sample.video.uri, mimeType: sample.video.mimeType }],
-    ),
-    (video) =>
-      MediaProtocol.expiringUrl(video.uri, FILE_RETENTION, {
-        mediaType: video.mimeType ?? "video/mp4",
-        headers: context.auth,
-      }),
-  )
-  const reasons = generated?.raiMediaFilteredReasons ?? []
-  const notices = reasons.map((reason) => ({
-    type: "filtered" as const,
-    message: `${NAME} filtered media: ${reason}`,
-    providerMetadata: { google: { raiMediaFilteredReason: reason } },
-  }))
-  if (videos.length === 0 && (reasons.length > 0 || (generated?.raiMediaFilteredCount ?? 0) > 0))
-    return yield* output.contentPolicy(
-      `${NAME} filtered every video${reasons.length === 0 ? "" : `: ${reasons.join("; ")}`}`,
-    )
-  if (videos.length === 0) return yield* output.invalid(`${NAME} operation completed without any video`)
-  return new VideoResponse({
-    videos,
-    notices: notices.length === 0 ? undefined : notices,
-    providerMetadata: {
-      google: {
-        operation: context.token.operation,
-        raiMediaFilteredCount: generated?.raiMediaFilteredCount,
-        metadata: operation.metadata,
-      },
-    },
-  })
-})
-
-// ---------------------------------------------------------------------------
-// 7. Protocol and route
-// ---------------------------------------------------------------------------
-
-const operationPath = (token: Token) => `/${token.operation}`
-
-export const protocol = MediaProtocol.queued<Request, VideoResponse, Token>({
-  id: ADAPTER,
-  name: NAME,
-  token: Token,
-  start: { body: { from: fromRequest }, decode: decodeStart },
-  status: { path: operationPath, decode: decodeStatus },
-  result: { path: operationPath, decode: decodeResult },
-})
-
-export const model = (input: MediaRoute.ModelInput) =>
-  VideoModel.fromRoute<GoogleVideoOptions, Token>(
-    {
-      id: ADAPTER,
-      provider: PROVIDER,
-      protocol,
-      baseURL: DEFAULT_BASE_URL,
-      path: ({ request }) => `/models/${request.model.id}:predictLongRunning`,
-    },
-    input,
-  )
-
-export const GoogleVideo = {
-  protocol,
-  model,
-} as const
@@ -1,7 +1,6 @@
 export * as AnthropicMessages from "./anthropic-messages.js"
 export * as BedrockConverse from "./bedrock-converse.js"
 export * as Gemini from "./gemini.js"
-export * as MistralChat from "./mistral-chat.js"
 export * as OpenAIChat from "./openai-chat.js"
 export * as OpenAIImages from "./openai-images.js"
 export * as OpenAICompatibleChat from "./openai-compatible-chat.js"
@@ -1,161 +0,0 @@
-import { Effect, Schema } from "effect"
-import type { HttpClientResponse } from "effect/unstable/http"
-import { ImageModel, ImageResponse, type ImageRequestFor } from "../image.js"
-import { Media } from "../media.js"
-import { MediaProtocol } from "../route/media-protocol.js"
-import { MediaRoute } from "../route/media.js"
-import { ProviderID, mergeJsonRecords } from "../schema/index.js"
-import { JsonObject, ProviderShared, optionalNull } from "./shared.js"
-import { MediaInput } from "./utils/media-input.js"
-
-const ADAPTER = "meta-images"
-const NAME = "Meta Images"
-const PROVIDER = ProviderID.make("meta")
-
-// ---------------------------------------------------------------------------
-// 1. Public model input
-// ---------------------------------------------------------------------------
-
-type OpenString<Known extends string> = Known | (string & {})
-
-/** Provider-native options. Common fields (`n`, `size`, `format`, `images`) live on the request. */
-export type ImageOptions = {
-  readonly responseFormat?: OpenString<"b64_json" | "url">
-  readonly reasoningStrength?: OpenString<"low" | "high">
-  readonly toolEnablement?: {
-    readonly enable_image_search?: boolean
-    readonly enable_web_search?: boolean
-    readonly enable_shell?: boolean
-  }
-  readonly [key: string]: unknown
-}
-
-export type Request = ImageRequestFor<ImageOptions>
-
-// ---------------------------------------------------------------------------
-// 2. Request body and response schemas
-// ---------------------------------------------------------------------------
-
-const Body = Schema.StructWithRest(
-  Schema.Struct({
-    model: Schema.String,
-    prompt: Schema.String,
-    images: Schema.optional(Schema.Array(JsonObject)),
-    n: Schema.optional(Schema.Number),
-    /** Aspect ratio hint, not an exact output resolution. */
-    size: Schema.optional(Schema.String),
-    output_format: Schema.optional(Schema.String),
-    response_format: Schema.optional(Schema.String),
-    reasoning_strength: Schema.optional(Schema.String),
-    tool_enablement: Schema.optional(Schema.Record(Schema.String, Schema.Boolean)),
-  }),
-  [JsonObject],
-)
-
-const Response = Schema.Struct({
-  data: Schema.Array(Schema.Struct({ b64_json: optionalNull(Schema.String), url: optionalNull(Schema.String) })),
-  output_format: Schema.optional(Schema.String),
-  usage: Schema.optional(
-    Schema.Struct({
-      input_tokens: Schema.optional(Schema.Number),
-      output_tokens: Schema.optional(Schema.Number),
-      total_tokens: Schema.optional(Schema.Number),
-    }),
-  ),
-})
-
-// ---------------------------------------------------------------------------
-// 5. Request body construction
-// ---------------------------------------------------------------------------
-
-const isEdit = (request: Request) => (request.images?.length ?? 0) > 0
-
-// Meta has no file handles: refs are rejected even when they name this provider.
-const reference = (asset: Media.Asset) =>
-  ProviderShared.mediaReference(asset, undefined, NAME).pipe(Effect.map((item) => ({ image_url: item.value })))
-
-const fromRequest = Effect.fn("MetaImages.fromRequest")(function* (request: Request) {
-  const images = yield* Effect.forEach(request.images ?? [], reference)
-  const { responseFormat, reasoningStrength, toolEnablement, ...native } = request.providerOptions ?? {}
-  const payload = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Body))(
-    mergeJsonRecords(
-      {
-        model: request.model.id,
-        prompt: request.prompt,
-        images: images.length === 0 ? undefined : images,
-        n: request.n,
-        size: request.size,
-        output_format: request.format,
-        response_format: responseFormat,
-        reasoning_strength: reasoningStrength,
-        tool_enablement: toolEnablement,
-      },
-      native,
-      request.http?.body,
-    ),
-  )
-  return MediaProtocol.json(payload)
-})
-
-// ---------------------------------------------------------------------------
-// 6. Response decoding
-// ---------------------------------------------------------------------------
-
-const decodeResponse = Effect.fn("MetaImages.decodeResponse")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-  context: MediaProtocol.DecodeContext<Request>,
-) {
-  const output = yield* MediaProtocol.decodeJson(ADAPTER, NAME, Response)(response)
-  const decoded = output.value
-  const requested = context.body.type === "json" ? context.body.value.output_format : undefined
-  const format = decoded.output_format ?? (typeof requested === "string" ? requested : "webp")
-  const mediaType = `image/${format}`
-  const images = yield* Effect.forEach(decoded.data, (item, index) => {
-    if (item.b64_json)
-      return MediaInput.decodedAsset(output.invalid, `${NAME} result ${index}`, item.b64_json, mediaType, {
-        info: { format },
-      })
-    if (item.url) return Effect.succeed(Media.url(item.url, { mediaType, info: { format } }))
-    return Effect.fail(output.invalid(`${NAME} result ${index} has neither image data nor a URL`))
-  })
-  if (images.length === 0) return yield* output.invalid(`${NAME} returned no images`)
-  return new ImageResponse({
-    images,
-    usage:
-      decoded.usage === undefined
-        ? undefined
-        : {
-            type: "tokens",
-            input: decoded.usage.input_tokens,
-            output: decoded.usage.output_tokens,
-            total: decoded.usage.total_tokens,
-            details: { meta: decoded.usage },
-          },
-    providerMetadata: { meta: { outputFormat: format } },
-  })
-})
-
-// ---------------------------------------------------------------------------
-// 7. Protocol and route
-// ---------------------------------------------------------------------------
-
-export const protocol = MediaProtocol.inline<Request, ImageResponse>({
-  id: ADAPTER,
-  name: NAME,
-  unsupported: ["mask", "aspectRatio", "seed"],
-  body: { from: fromRequest },
-  response: { decode: decodeResponse },
-})
-
-export const model = (input: MediaRoute.ModelInput & { readonly baseURL: string }) =>
-  ImageModel.fromRoute<ImageOptions>(
-    {
-      id: ADAPTER,
-      provider: PROVIDER,
-      protocol,
-      path: ({ request }) => `/images/${isEdit(request) ? "edits" : "generations"}`,
-    },
-    input,
-  )
-
-export * as MetaImages from "./meta-images.js"
@@ -1,52 +0,0 @@
-import { Effect, Schema } from "effect"
-import { Protocol } from "../route/protocol.js"
-import type { LLMRequest } from "../schema/index.js"
-import { AnthropicMessages } from "./anthropic-messages.js"
-import { MetaResponses } from "./meta-responses.js"
-import { JsonObject, optionalArray, ProviderShared } from "./shared.js"
-
-const WebSearch = Schema.Struct({
-  type: Schema.Literal("web_search"),
-  name: Schema.Literal("web_search"),
-  user_location: MetaResponses.WebSearch.fields.user_location,
-})
-const Body = Schema.Struct({
-  ...AnthropicMessages.AnthropicMessagesBody.fields,
-  tools: optionalArray(
-    Schema.Union([
-      Schema.Struct({ name: Schema.String, description: Schema.String, input_schema: JsonObject }),
-      WebSearch,
-    ]),
-  ),
-})
-
-const fromRequest = Effect.fn("MetaMessages.fromRequest")(function* (request: LLMRequest) {
-  const projected = ProviderShared.flattenToolRequest(request)
-  const body = yield* AnthropicMessages.protocol.body.from(projected.request)
-  return {
-    ...body,
-    tools:
-      body.tools === undefined
-        ? undefined
-        : yield* Effect.forEach(body.tools, (tool, index) =>
-            Effect.gen(function* () {
-              const native = projected.tools[index]?.native
-              if (native === undefined) return tool
-              const search = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(MetaResponses.WebSearch))(
-                native.meta,
-              )
-              if (search.search_context_size !== undefined)
-                return yield* ProviderShared.invalidRequest("Meta Messages does not support searchContextSize")
-              return { type: "web_search" as const, name: "web_search" as const, user_location: search.user_location }
-            }),
-          ),
-  }
-})
-
-export const protocol = Protocol.make({
-  id: "meta-messages",
-  body: { schema: Body, from: fromRequest },
-  stream: AnthropicMessages.protocol.stream,
-})
-
-export * as MetaMessages from "./meta-messages.js"
@@ -1,238 +0,0 @@
-import { Effect, Encoding, Schema } from "effect"
-import { Protocol } from "../route/protocol.js"
-import { HttpTransport } from "../route/transport/index.js"
-import { LLMEvent, LLMRequest, Message, ToolResultPart } from "../schema/index.js"
-import { OpenResponses } from "./open-responses.js"
-import { JsonObject, optionalArray, optionalNull, ProviderShared } from "./shared.js"
-import { ResponsesHostedTools } from "./utils/responses-hosted-tools.js"
-import { ToolSchemaProjection } from "./utils/tool-schema.js"
-import { MetaImage } from "./utils/meta-image.js"
-
-const ADAPTER = "meta-responses"
-const NAME = "Meta Responses"
-
-export const WebSearch = Schema.Struct({
-  type: Schema.Literal("web_search"),
-  search_context_size: Schema.optional(Schema.String),
-  user_location: Schema.optional(
-    Schema.Struct({
-      type: Schema.Literal("approximate"),
-      city: Schema.optional(Schema.String),
-      region: Schema.optional(Schema.String),
-      country: Schema.optional(Schema.String),
-      timezone: Schema.optional(Schema.String),
-    }),
-  ),
-})
-
-export const ImageGeneration = Schema.Struct({
-  type: Schema.Literal("image_generation"),
-  size: Schema.optional(Schema.String),
-  output_format: Schema.optional(Schema.String),
-  reasoning_strength: Schema.optional(Schema.String),
-  enable_image_search: Schema.optional(Schema.Boolean),
-  enable_web_search: Schema.optional(Schema.Boolean),
-  enable_shell: Schema.optional(Schema.Boolean),
-})
-
-const NativeTool = Schema.Union([WebSearch, ImageGeneration])
-const ImageItem = Schema.Struct({
-  type: Schema.Literal("image_generation_call"),
-  id: Schema.String,
-  status: Schema.optional(Schema.String),
-  result: optionalNull(Schema.String),
-  output_format: Schema.optional(Schema.String),
-  error: Schema.optional(Schema.Unknown),
-})
-
-const Body = Schema.Struct({
-  ...OpenResponses.coreFields,
-  input: Schema.Array(Schema.Union([OpenResponses.InputItem, ImageItem])),
-  tools: optionalArray(Schema.Union([OpenResponses.Tool, NativeTool])),
-  stream: Schema.Literal(true),
-})
-
-const MessageAnnotations = Schema.Struct({
-  content: Schema.Array(Schema.Struct({ annotations: optionalArray(JsonObject) })),
-})
-
-interface ParserState extends OpenResponses.ParserState {
-  readonly completedItems: ReadonlySet<string>
-}
-
-const adapter = {
-  id: ADAPTER,
-  name: NAME,
-  restoreHostedToolItem: (item: unknown) => (Schema.is(ImageItem)(item) ? item : undefined),
-} satisfies OpenResponses.ProviderAdapter
-
-const fromRequest = Effect.fn("MetaResponses.fromRequest")(function* (request: LLMRequest) {
-  const key = request.model.route.providerMetadataKey ?? String(request.model.provider)
-  const projected = ProviderShared.flattenToolRequest(
-    LLMRequest.update(request, {
-      messages: request.messages.map((message) =>
-        Message.make({
-          ...message,
-          content: message.content.map((part) => {
-            if (
-              part.type !== "tool-result" ||
-              !part.providerExecuted ||
-              part.name !== "image_generation" ||
-              part.result.type !== "content" ||
-              part.providerMetadata?.[key]?.itemId !== part.id
-            )
-              return part
-            // Meta's signed image ID carries edit state; replay the handle, not the image bytes as a user message.
-            return ToolResultPart.make({
-              ...part,
-              result: {
-                type: "json",
-                value: { type: "image_generation_call", id: part.id, status: "completed", result: null },
-              },
-            })
-          }),
-        }),
-      ),
-    }),
-  )
-  return yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Body))({
-    ...(yield* OpenResponses.lowerConversation(projected.request, adapter)),
-    ...OpenResponses.lowerGeneration(request),
-    tools:
-      projected.tools.length === 0
-        ? undefined
-        : yield* Effect.forEach(projected.tools, (tool) =>
-            Effect.gen(function* () {
-              if (tool.native === undefined)
-                return yield* OpenResponses.lowerTool(
-                  NAME,
-                  tool,
-                  ToolSchemaProjection.modelCompatibility(tool.inputSchema, request.model.compatibility?.toolSchema),
-                )
-              return yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(NativeTool))(tool.native.meta)
-            }),
-          ),
-    tool_choice:
-      OpenResponses.allowedToolChoice(request) ??
-      (request.toolChoice ? yield* OpenResponses.lowerToolChoice(NAME, request.toolChoice) : undefined),
-  })
-})
-
-const HOSTED_TOOLS = {
-  web_search_call: { name: "web_search", input: (item) => item.action ?? {} },
-  image_generation_call: {
-    name: "image_generation",
-    input: () => ({}),
-    result: Effect.fn("MetaResponses.imageResult")(function* (raw: ResponsesHostedTools.Item) {
-      const item = yield* Schema.decodeUnknownEffect(ImageItem)(raw).pipe(
-        Effect.mapError((cause) =>
-          ProviderShared.eventError(
-            ADAPTER,
-            "Meta returned an invalid image item",
-            ProviderShared.encodeJson(raw),
-            cause,
-          ),
-        ),
-      )
-      if (item.error !== undefined && item.error !== null) return { type: "error" as const, value: item.error }
-      if (!item.result)
-        return yield* ProviderShared.eventError(
-          ADAPTER,
-          "Meta returned an image without data",
-          ProviderShared.encodeJson(raw),
-        )
-      const data = yield* Effect.fromResult(Encoding.decodeBase64(item.result)).pipe(
-        Effect.mapError((cause) =>
-          ProviderShared.eventError(
-            ADAPTER,
-            "Meta returned invalid image base64",
-            ProviderShared.encodeJson(raw),
-            cause,
-          ),
-        ),
-      )
-      const mime = MetaImage.mediaType(data, item.output_format)
-      return {
-        type: "content" as const,
-        value: [{ type: "file" as const, uri: `data:${mime};base64,${item.result}`, mime }],
-      }
-    }),
-  },
-} satisfies ResponsesHostedTools.Definitions
-
-const onEvent = Effect.fn("MetaResponses.onEvent")(function* (
-  state: OpenResponses.ParserState,
-  input: OpenResponses.Event,
-) {
-  const event = OpenResponses.normalize(state, input)
-  if (event.type === "response.output_item.done" && event.item && ResponsesHostedTools.isItem(event.item, HOSTED_TOOLS))
-    return yield* ResponsesHostedTools.onDone(state, event.item, HOSTED_TOOLS)
-  const result = yield* OpenResponses.step(state, event)
-  if (event.type !== "response.output_item.done" || event.item?.type !== "message") return result
-  const message = yield* Schema.decodeUnknownEffect(MessageAnnotations)(event.item).pipe(
-    Effect.mapError((cause) =>
-      ProviderShared.eventError(
-        ADAPTER,
-        "Meta returned invalid message annotations",
-        ProviderShared.encodeJson(event),
-        cause,
-      ),
-    ),
-  )
-  const annotations = message.content.flatMap((part) => part.annotations ?? [])
-  if (annotations.length === 0) return result
-  return [
-    result[0],
-    result[1].map((item) =>
-      LLMEvent.is.textEnd(item)
-        ? LLMEvent.textEnd({
-            ...item,
-            providerMetadata: {
-              ...item.providerMetadata,
-              [state.providerMetadataKey]: { ...item.providerMetadata?.[state.providerMetadataKey], annotations },
-            },
-          })
-        : item,
-    ),
-  ] satisfies OpenResponses.StepResult
-})
-
-const step = Effect.fn("MetaResponses.step")(function* (state: ParserState, input: OpenResponses.Event) {
-  const completedItems = new Set(state.completedItems)
-  const event = OpenResponses.normalize(state, input)
-  if (event.type === "response.output_item.done" && event.item && completedItems.has(event.item.id))
-    return [state, []] as const
-  const events: LLMEvent[] = []
-  let current: OpenResponses.ParserState = state
-  // Muse Image delivers its image and optional summary only in response.completed.
-  // Recover terminal-only items in order, without duplicating Spark's streamed items.
-  if (event.type === "response.completed") {
-    for (const [index, item] of (event.response?.output ?? []).entries()) {
-      const done = OpenResponses.normalize(current, { type: "response.output_item.done", item, output_index: index })
-      // Spark changes reasoning IDs in the terminal snapshot; output indices still identify the streamed items.
-      if (!done.item || completedItems.has(done.item.id) || completedItems.has(state.outputItems[index] ?? "")) continue
-      const result = yield* onEvent(current, done)
-      current = result[0]
-      events.push(...result[1])
-      completedItems.add(done.item.id)
-    }
-  }
-  const result = yield* onEvent(current, event)
-  if (event.type === "response.output_item.done" && event.item) completedItems.add(event.item.id)
-  return [{ ...result[0], completedItems }, [...events, ...result[1]]] as const
-})
-
-export const protocol = Protocol.make({
-  id: ADAPTER,
-  body: { schema: Body, from: fromRequest },
-  stream: {
-    event: OpenResponses.protocol.stream.event,
-    initial: (request): ParserState => ({ ...OpenResponses.initial(request, adapter), completedItems: new Set() }),
-    step,
-    terminal: OpenResponses.terminal,
-  },
-})
-
-export const httpTransport = HttpTransport.sseJson.with<Schema.Schema.Type<typeof Body>>()
-
-export * as MetaResponses from "./meta-responses.js"
@@ -1,767 +0,0 @@
-import { Effect, Schema } from "effect"
-import { Auth } from "../route/auth.js"
-import { Route } from "../route/client.js"
-import { Endpoint } from "../route/endpoint.js"
-import { Framing } from "../route/framing.js"
-import { Protocol } from "../route/protocol.js"
-import { HttpTransport } from "../route/transport/index.js"
-import {
-  AIError,
-  InvalidProviderOutputError,
-  LLMEvent,
-  ProviderInternalError,
-  UnknownProviderError,
-  Usage,
-  type FinishReasonDetails,
-  type LLMRequest,
-  type MediaPart,
-  type ToolCallPart,
-  type ToolDefinition,
-} from "../schema/index.js"
-import { classifyProviderFailure } from "../provider-error.js"
-import { JsonObject, optionalArray, optionalNull, ProviderShared } from "./shared.js"
-import { Lifecycle } from "./utils/lifecycle.js"
-import { MistralToolID } from "./utils/mistral-tool-id.js"
-import { ToolStream } from "./utils/tool-stream.js"
-
-const ADAPTER = "mistral-chat"
-const DONE = "[DONE]" as const
-export const DEFAULT_BASE_URL = "https://api.mistral.ai/v1"
-export const PATH = "/chat/completions"
-
-const MistralTextContent = Schema.Struct({
-  type: Schema.Literal("text"),
-  text: Schema.String,
-})
-
-const MistralThinkingUnit = Schema.StructWithRest(
-  Schema.Struct({
-    type: Schema.optional(Schema.String),
-    text: Schema.optional(Schema.String),
-  }),
-  [Schema.Record(Schema.String, Schema.Unknown)],
-)
-type MistralThinkingUnit = Schema.Schema.Type<typeof MistralThinkingUnit>
-
-const MistralThinkingContent = Schema.StructWithRest(
-  Schema.Struct({
-    type: Schema.Literal("thinking"),
-    thinking: Schema.Array(MistralThinkingUnit),
-  }),
-  [Schema.Record(Schema.String, Schema.Unknown)],
-)
-type MistralThinkingContent = Schema.Schema.Type<typeof MistralThinkingContent>
-const isMistralThinkingContent = Schema.is(MistralThinkingContent)
-
-const MistralUserContent = Schema.Union([
-  MistralTextContent,
-  Schema.Struct({ type: Schema.Literal("image_url"), image_url: Schema.String }),
-  Schema.Struct({ type: Schema.Literal("document_url"), document_url: Schema.String }),
-])
-type MistralUserContent = Schema.Schema.Type<typeof MistralUserContent>
-
-const MistralAssistantToolCall = Schema.Struct({
-  id: Schema.String,
-  type: Schema.Literal("function"),
-  function: Schema.Struct({ name: Schema.String, arguments: Schema.String }),
-})
-type MistralAssistantToolCall = Schema.Schema.Type<typeof MistralAssistantToolCall>
-
-const MistralMessage = Schema.Union([
-  Schema.Struct({ role: Schema.Literal("system"), content: Schema.String }),
-  Schema.Struct({
-    role: Schema.Literal("user"),
-    content: Schema.Union([Schema.String, Schema.Array(MistralUserContent)]),
-  }),
-  Schema.Struct({
-    role: Schema.Literal("assistant"),
-    content: Schema.Union([Schema.String, Schema.Array(Schema.Union([MistralTextContent, MistralThinkingContent]))]),
-    tool_calls: optionalArray(MistralAssistantToolCall),
-    prefix: Schema.optional(Schema.Literal(true)),
-  }),
-  Schema.Struct({
-    role: Schema.Literal("tool"),
-    tool_call_id: Schema.String,
-    name: Schema.String,
-    content: Schema.Union([Schema.String, Schema.Array(MistralUserContent)]),
-  }),
-]).pipe(Schema.toTaggedUnion("role"))
-type MistralMessage = Schema.Schema.Type<typeof MistralMessage>
-
-const MistralTool = Schema.Struct({
-  type: Schema.Literal("function"),
-  function: Schema.Struct({
-    name: Schema.String,
-    description: Schema.String,
-    parameters: JsonObject,
-    strict: Schema.Literal(false),
-  }),
-})
-type MistralTool = Schema.Schema.Type<typeof MistralTool>
-
-const MistralOptions = Schema.Struct({
-  safePrompt: Schema.optional(Schema.Boolean),
-  documentImageLimit: Schema.optional(Schema.Number),
-  documentPageLimit: Schema.optional(Schema.Number),
-  parallelToolCalls: Schema.optional(Schema.Boolean),
-  reasoningEffort: Schema.optional(Schema.String),
-  promptMode: Schema.optional(Schema.Literal("reasoning")),
-  promptCacheKey: Schema.optional(Schema.String),
-})
-
-export type ReasoningEffort = "none" | "minimal" | "low" | "medium" | "high" | "xhigh" | (string & {})
-
-export type ProviderOptionsInput = {
-  readonly safePrompt?: boolean
-  readonly documentImageLimit?: number
-  readonly documentPageLimit?: number
-  readonly parallelToolCalls?: boolean
-  readonly reasoningEffort?: ReasoningEffort
-  readonly promptMode?: "reasoning"
-  readonly promptCacheKey?: string
-  readonly [key: string]: unknown
-}
-
-const MistralBody = Schema.Struct({
-  model: Schema.String,
-  messages: Schema.Array(MistralMessage),
-  tools: optionalArray(MistralTool),
-  tool_choice: Schema.optional(
-    Schema.Union([
-      Schema.Literals(["auto", "none", "any"]),
-      Schema.Struct({ type: Schema.Literal("function"), function: Schema.Struct({ name: Schema.String }) }),
-    ]),
-  ),
-  stream: Schema.Literal(true),
-  max_tokens: Schema.optional(Schema.Number),
-  random_seed: Schema.optional(Schema.Number),
-  temperature: Schema.optional(Schema.Number),
-  top_p: Schema.optional(Schema.Number),
-  frequency_penalty: Schema.optional(Schema.Number),
-  presence_penalty: Schema.optional(Schema.Number),
-  stop: optionalArray(Schema.String),
-  prompt_cache_key: Schema.optional(Schema.String),
-  safe_prompt: Schema.optional(Schema.Boolean),
-  document_image_limit: Schema.optional(Schema.Number),
-  document_page_limit: Schema.optional(Schema.Number),
-  parallel_tool_calls: Schema.optional(Schema.Boolean),
-  reasoning_effort: Schema.optional(Schema.String),
-  prompt_mode: Schema.optional(Schema.Literal("reasoning")),
-})
-export type MistralBody = Schema.Schema.Type<typeof MistralBody>
-
-const MistralUsageDetails = Schema.StructWithRest(Schema.Struct({ cached_tokens: optionalNull(Schema.Number) }), [
-  Schema.Record(Schema.String, Schema.Unknown),
-])
-
-const MistralUsage = Schema.StructWithRest(
-  Schema.Struct({
-    prompt_tokens: optionalNull(Schema.Number),
-    completion_tokens: optionalNull(Schema.Number),
-    total_tokens: optionalNull(Schema.Number),
-    num_cached_tokens: optionalNull(Schema.Number),
-    prompt_token_details: optionalNull(MistralUsageDetails),
-    prompt_tokens_details: optionalNull(MistralUsageDetails),
-  }),
-  [Schema.Record(Schema.String, Schema.Unknown)],
-)
-
-const MistralOutputContent = Schema.StructWithRest(
-  Schema.Struct({
-    type: Schema.String,
-    text: optionalNull(Schema.String),
-    thinking: optionalNull(Schema.Unknown),
-  }),
-  [Schema.Record(Schema.String, Schema.Unknown)],
-)
-type MistralOutputContent = Schema.Schema.Type<typeof MistralOutputContent>
-
-const MistralToolDelta = Schema.Struct({
-  index: optionalNull(Schema.Number),
-  id: optionalNull(Schema.String),
-  function: optionalNull(
-    Schema.Struct({
-      name: optionalNull(Schema.String),
-      arguments: optionalNull(Schema.Union([Schema.String, JsonObject])),
-    }),
-  ),
-})
-type MistralToolDelta = Schema.Schema.Type<typeof MistralToolDelta>
-
-const MistralChoice = Schema.StructWithRest(
-  Schema.Struct({
-    delta: optionalNull(
-      Schema.StructWithRest(
-        Schema.Struct({
-          content: optionalNull(Schema.Union([Schema.String, Schema.Array(MistralOutputContent)])),
-          tool_calls: optionalNull(Schema.Array(MistralToolDelta)),
-        }),
-        [Schema.Record(Schema.String, Schema.Unknown)],
-      ),
-    ),
-    finish_reason: optionalNull(Schema.String),
-  }),
-  [Schema.Record(Schema.String, Schema.Unknown)],
-)
-
-const MistralError = Schema.StructWithRest(
-  Schema.Struct({
-    message: Schema.String,
-    code: optionalNull(Schema.Union([Schema.String, Schema.Number])),
-  }),
-  [Schema.Record(Schema.String, Schema.Unknown)],
-)
-
-const MistralEvent = Schema.StructWithRest(
-  Schema.Struct({
-    choices: optionalNull(Schema.Array(MistralChoice)),
-    usage: optionalNull(MistralUsage),
-    error: optionalNull(MistralError),
-  }),
-  [Schema.Record(Schema.String, Schema.Unknown)],
-)
-type MistralEvent = Schema.Schema.Type<typeof MistralEvent>
-const MistralStreamEvent = Schema.Union([Schema.Literal(DONE), Protocol.jsonEvent(MistralEvent)])
-
-const lowerMedia = Effect.fn("MistralChat.lowerMedia")(function* (part: MediaPart) {
-  const mime = part.media.mediaType.toLowerCase()
-  const url =
-    ProviderShared.mediaUrl(part.media) ??
-    (yield* ProviderShared.requireInlineMedia("Mistral Chat", part.media)).dataUrl
-  if (mime.startsWith("image/")) return { type: "image_url" as const, image_url: url }
-  if (mime === "application/pdf") return { type: "document_url" as const, document_url: url }
-  return yield* ProviderShared.invalidRequest(`Mistral Chat does not support media type ${part.media.mediaType}`)
-})
-
-const lowerUser = Effect.fn("MistralChat.lowerUser")(function* (message: LLMRequest["messages"][number]) {
-  const content: MistralUserContent[] = []
-  for (const part of message.content) {
-    if (part.type === "text") {
-      content.push({ type: "text", text: part.text })
-      continue
-    }
-    if (part.type === "media") {
-      content.push(yield* lowerMedia(part))
-      continue
-    }
-    return yield* ProviderShared.unsupportedContent("Mistral Chat", "user", ["text", "media"])
-  }
-  if (content.every((part) => part.type === "text"))
-    return { role: "user" as const, content: content.map((part) => part.text).join("") }
-  return { role: "user" as const, content }
-})
-
-const lowerToolCall = (part: ToolCallPart, normalizeID: (id: string) => string): MistralAssistantToolCall => ({
-  id: normalizeID(part.id),
-  type: "function",
-  function: { name: part.name, arguments: ProviderShared.encodeJson(part.input) },
-})
-
-const lowerAssistant = Effect.fn("MistralChat.lowerAssistant")(function* (
-  message: LLMRequest["messages"][number],
-  normalizeID: (id: string) => string,
-  prefix: boolean,
-) {
-  const structured = message.content.some(
-    (part) => part.type === "reasoning" && isMistralThinkingContent(part.providerMetadata?.mistral?.thinking),
-  )
-  const content: Array<Schema.Schema.Type<typeof MistralTextContent> | MistralThinkingContent> = []
-  const text: string[] = []
-  const toolCalls: MistralAssistantToolCall[] = []
-  for (const part of message.content) {
-    if (part.type === "text") {
-      if (structured) content.push({ type: "text", text: part.text })
-      else text.push(part.text)
-      continue
-    }
-    if (part.type === "reasoning") {
-      const native = part.providerMetadata?.mistral?.thinking
-      if (structured && isMistralThinkingContent(native)) content.push(native)
-      else if (structured) content.push({ type: "text", text: part.text })
-      else text.push(part.text)
-      continue
-    }
-    if (part.type === "tool-call") {
-      toolCalls.push(lowerToolCall(part, normalizeID))
-      continue
-    }
-    return yield* ProviderShared.unsupportedContent("Mistral Chat", "assistant", ["text", "reasoning", "tool-call"])
-  }
-  return {
-    role: "assistant" as const,
-    content: structured ? content : text.join(""),
-    ...(toolCalls.length > 0 ? { tool_calls: toolCalls } : {}),
-    ...(prefix ? { prefix: true as const } : {}),
-  }
-})
-
-const lowerToolResults = Effect.fn("MistralChat.lowerToolResults")(function* (
-  message: LLMRequest["messages"][number],
-  normalizeID: (id: string) => string,
-) {
-  const output: MistralMessage[] = []
-  for (const part of message.content) {
-    if (part.type !== "tool-result")
-      return yield* ProviderShared.unsupportedContent("Mistral Chat", "tool", ["tool-result"])
-    if (part.result.type !== "content") {
-      output.push({
-        role: "tool",
-        tool_call_id: normalizeID(part.id),
-        name: part.name,
-        content: ProviderShared.toolResultText(part),
-      })
-      continue
-    }
-    const content: MistralUserContent[] = []
-    for (const item of part.result.value) {
-      if (item.type === "text") {
-        content.push({ type: "text", text: item.text })
-        continue
-      }
-      content.push(yield* lowerMedia(ProviderShared.toolFileMedia(item)))
-    }
-    output.push({
-      role: "tool",
-      tool_call_id: normalizeID(part.id),
-      name: part.name,
-      content: content.some((item) => item.type !== "text")
-        ? content
-        : content.map((item) => (item.type === "text" ? item.text : "")).join(""),
-    })
-  }
-  return output
-})
-
-const lowerMessages = Effect.fn("MistralChat.lowerMessages")(function* (request: LLMRequest) {
-  const normalizeID = MistralToolID.normalizer(request)
-  const messages: MistralMessage[] =
-    request.system.length === 0 ? [] : [{ role: "system", content: ProviderShared.joinText(request.system) }]
-  for (const message of request.messages) {
-    if (message.role === "system") {
-      const update = yield* ProviderShared.wrappedSystemUpdate("Mistral Chat", message)
-      messages.push({
-        role: "user",
-        content: update.text,
-      })
-      continue
-    }
-    if (message.role === "user") {
-      messages.push(yield* lowerUser(message))
-      continue
-    }
-    if (message.role === "assistant") {
-      const hasToolCalls = message.content.some((part) => part.type === "tool-call")
-      const hasNativeThinking = message.content.some(
-        (part) => part.type === "reasoning" && isMistralThinkingContent(part.providerMetadata?.mistral?.thinking),
-      )
-      const text = message.content
-        .flatMap((part) => (part.type === "text" || part.type === "reasoning" ? [part.text] : []))
-        .join("")
-      if (!hasToolCalls && !hasNativeThinking && text.trim() === "") continue
-      messages.push(yield* lowerAssistant(message, normalizeID, !hasToolCalls && message === request.messages.at(-1)))
-      continue
-    }
-    messages.push(...(yield* lowerToolResults(message, normalizeID)))
-  }
-  return messages
-})
-
-const lowerTool = (tool: ToolDefinition): MistralTool => ({
-  type: "function",
-  function: { name: tool.name, description: tool.description, parameters: tool.inputSchema, strict: false },
-})
-
-export const fromRequest = Effect.fn("MistralChat.fromRequest")(function* (request: LLMRequest) {
-  const options = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(MistralOptions))(
-    request.providerOptions ?? {},
-  )
-  const selected = request.toolChoice?.type === "tool" ? request.toolChoice.name : undefined
-  if (request.toolChoice?.type === "tool" && !selected)
-    return yield* ProviderShared.invalidRequest("Mistral Chat tool choice requires a tool name")
-  if (options.reasoningEffort !== undefined && options.promptMode !== undefined)
-    return yield* ProviderShared.invalidRequest(
-      "Mistral Chat reasoningEffort and promptMode provider options are mutually exclusive",
-    )
-  const toolChoice = request.toolChoice
-    ? yield* ProviderShared.matchToolChoice("Mistral Chat", request.toolChoice, {
-        auto: () => "auto" as const,
-        none: () => "none" as const,
-        required: () => "any" as const,
-        tool: (name) => ({ type: "function" as const, function: { name } }),
-      })
-    : undefined
-  const flattened = ProviderShared.flattenToolRequest(request)
-  return {
-    model: request.model.id,
-    messages: yield* lowerMessages(flattened.request),
-    tools: flattened.tools.length > 0 ? flattened.tools.map(lowerTool) : undefined,
-    tool_choice: toolChoice,
-    stream: true as const,
-    max_tokens: request.generation?.maxTokens,
-    random_seed: request.generation?.seed,
-    temperature: request.generation?.temperature,
-    top_p: request.generation?.topP,
-    frequency_penalty: request.generation?.frequencyPenalty,
-    presence_penalty: request.generation?.presencePenalty,
-    stop: request.generation?.stop,
-    prompt_cache_key: request.cache === "none" ? undefined : (options.promptCacheKey ?? request.promptCacheKey),
-    safe_prompt: options.safePrompt,
-    document_image_limit: options.documentImageLimit,
-    document_page_limit: options.documentPageLimit,
-    parallel_tool_calls:
-      options.parallelToolCalls ?? (request.toolChoice?.disableParallelToolUse === true ? false : undefined),
-    reasoning_effort: options.reasoningEffort,
-    prompt_mode: options.promptMode,
-  }
-})
-
-type ToolKey = string | number
-interface PendingTool {
-  readonly id: string
-  readonly name?: string
-  readonly input: string
-}
-
-interface ActiveContent {
-  readonly type: "text" | "reasoning"
-  readonly id: string
-  readonly thinking?: MistralThinkingContent
-}
-
-export interface ParserState {
-  readonly tools: ToolStream.State<ToolKey>
-  readonly pendingTools: Partial<Record<ToolKey, PendingTool>>
-  readonly toolIDs: ReadonlyMap<string, string>
-  readonly usedToolIDs: ReadonlySet<string>
-  readonly completedTools: ReadonlyArray<LLMEvent>
-  readonly latestToolKey?: ToolKey
-  readonly generatedTools: number
-  readonly lifecycle: Lifecycle.State
-  readonly active?: ActiveContent
-  readonly nextContent: number
-  readonly usage?: Usage
-  readonly finishReason?: FinishReasonDetails
-}
-
-const mapUsage = (usage: MistralEvent["usage"]): Usage | undefined => {
-  if (!usage) return undefined
-  const input = usage.prompt_tokens ?? undefined
-  const reported =
-    usage.num_cached_tokens ??
-    usage.prompt_tokens_details?.cached_tokens ??
-    usage.prompt_token_details?.cached_tokens ??
-    undefined
-  const cached = input === undefined || reported === undefined ? undefined : Math.max(0, Math.min(input, reported))
-  const output = usage.completion_tokens ?? undefined
-  return new Usage({
-    inputTokens: input,
-    outputTokens: output,
-    nonCachedInputTokens: ProviderShared.subtractTokens(input, cached),
-    cacheReadInputTokens: cached,
-    totalTokens: ProviderShared.totalTokens(input, output, usage.total_tokens ?? undefined),
-    providerMetadata: { mistral: usage },
-  })
-}
-
-const mapFinishReason = (reason: string) => {
-  switch (reason) {
-    case "stop":
-      return "stop" as const
-    case "length":
-    case "model_length":
-      return "length" as const
-    case "tool_calls":
-      return "tool-calls" as const
-    case "content_filter":
-      return "content-filter" as const
-    case "error":
-    case "network_error":
-      return "error" as const
-    default:
-      return "unknown" as const
-  }
-}
-
-const thinkingUnits = (value: unknown): ReadonlyArray<MistralThinkingUnit> => {
-  if (typeof value === "string") return [{ type: "text", text: value }]
-  if (!Array.isArray(value)) return []
-  return value.filter(Schema.is(MistralThinkingUnit))
-}
-
-const thinkingText = (thinking: ReadonlyArray<MistralThinkingUnit>) =>
-  thinking.flatMap((unit) => (typeof unit.text === "string" ? [unit.text] : [])).join("")
-
-const thinkingMetadata = (thinking: MistralThinkingContent) => ({ mistral: { thinking } })
-
-const closeActive = (state: ParserState, events: LLMEvent[]) => {
-  if (!state.active) return state
-  const lifecycle =
-    state.active.type === "text"
-      ? Lifecycle.textEnd(state.lifecycle, events, state.active.id)
-      : Lifecycle.reasoningEnd(
-          state.lifecycle,
-          events,
-          state.active.id,
-          thinkingMetadata(state.active.thinking ?? { type: "thinking", thinking: [] }),
-          thinkingText(state.active.thinking?.thinking ?? []),
-        )
-  return { ...state, lifecycle, active: undefined }
-}
-
-const appendText = (state: ParserState, events: LLMEvent[], text: string) => {
-  if (text.length === 0) return state
-  const current = state.active?.type === "text" ? state : closeActive(state, events)
-  const active = current.active ?? { type: "text" as const, id: `text-${current.nextContent}` }
-  return {
-    ...current,
-    lifecycle: Lifecycle.textDelta(current.lifecycle, events, active.id, text),
-    active,
-    nextContent: current.active ? current.nextContent : current.nextContent + 1,
-  }
-}
-
-const appendThinking = (state: ParserState, events: LLMEvent[], part: MistralOutputContent) => {
-  const current = state.active?.type === "reasoning" ? state : closeActive(state, events)
-  const units = thinkingUnits(part.thinking)
-  const active = current.active ?? { type: "reasoning" as const, id: `reasoning-${current.nextContent}` }
-  const thinking = {
-    ...active.thinking,
-    ...part,
-    type: "thinking" as const,
-    thinking: [...(active.thinking?.thinking ?? []), ...units],
-  }
-  const text = thinkingText(units)
-  return {
-    ...current,
-    lifecycle:
-      text.length > 0
-        ? Lifecycle.reasoningDelta(current.lifecycle, events, active.id, text, thinkingMetadata(thinking))
-        : Lifecycle.reasoningStart(current.lifecycle, events, active.id, thinkingMetadata(thinking)),
-    active: { ...active, thinking },
-    nextContent: current.active ? current.nextContent : current.nextContent + 1,
-  }
-}
-
-const appendContent = (
-  state: ParserState,
-  events: LLMEvent[],
-  content: string | ReadonlyArray<MistralOutputContent>,
-) => {
-  if (typeof content === "string") return appendText(state, events, content)
-  return content.reduce((current, part) => {
-    if (part.type === "text") return appendText(current, events, part.text ?? "")
-    if (part.type === "thinking") return appendThinking(current, events, part)
-    return closeActive(current, events)
-  }, state)
-}
-
-const normalizeStreamToolID = (state: ParserState, source: string) => {
-  if (MistralToolID.valid.test(source))
-    return { id: source, state: { ...state, usedToolIDs: new Set([...state.usedToolIDs, source]) } }
-  const previous = state.toolIDs.get(source)
-  if (previous) return { id: previous, state }
-  let attempt = 0
-  let id = MistralToolID.hash(source)
-  while (state.usedToolIDs.has(id)) id = MistralToolID.hash(`${source}:${++attempt}`)
-  return {
-    id,
-    state: {
-      ...state,
-      toolIDs: new Map([...state.toolIDs, [source, id]]),
-      usedToolIDs: new Set([...state.usedToolIDs, id]),
-    },
-  }
-}
-
-const toolText = (tool: MistralToolDelta) => {
-  const value = tool.function?.arguments
-  if (typeof value === "string") return value
-  return value === null || value === undefined ? "" : ProviderShared.encodeJson(value)
-}
-
-const appendTools = Effect.fn("MistralChat.appendTools")(function* (
-  initial: ParserState,
-  events: LLMEvent[],
-  deltas: ReadonlyArray<MistralToolDelta>,
-) {
-  if (deltas.length === 0) return initial
-  let state = closeActive(initial, events)
-  for (const [position, delta] of deltas.entries()) {
-    const wireID = delta.id?.trim() || undefined
-    const providedID = wireID === "null" ? undefined : wireID
-    const key =
-      delta.index ??
-      (providedID
-        ? `id:${providedID}`
-        : deltas.length > 1
-          ? `position:${position}`
-          : (state.latestToolKey ?? `missing:${state.generatedTools}`))
-    const existing = state.tools[key]
-    const pending = state.pendingTools[key]
-    const source = providedID ?? `generated:${String(key)}`
-    const normalized =
-      existing || pending ? { id: existing?.id ?? pending?.id ?? "", state } : normalizeStreamToolID(state, source)
-    state = normalized.state
-    const name = existing?.name ?? pending?.name ?? (delta.function?.name?.trim() || undefined)
-    const text = `${pending?.input ?? ""}${toolText(delta)}`
-    if (!name) {
-      state = {
-        ...state,
-        pendingTools: { ...state.pendingTools, [key]: { id: normalized.id, input: text } },
-        latestToolKey: key,
-        generatedTools: state.generatedTools + (!providedID && !pending ? 1 : 0),
-      }
-      continue
-    }
-    const result = ToolStream.appendOrStart(
-      ADAPTER,
-      state.tools,
-      key,
-      { id: normalized.id, name, text },
-      "Mistral Chat tool call delta is missing a name",
-    )
-    if (ToolStream.isError(result)) return yield* result
-    if (result.events.length > 0) state = { ...state, lifecycle: Lifecycle.stepStart(state.lifecycle, events) }
-    events.push(...result.events)
-    const pendingTools = { ...state.pendingTools }
-    delete pendingTools[key]
-    state = {
-      ...state,
-      tools: result.tools,
-      pendingTools,
-      latestToolKey: key,
-      generatedTools: state.generatedTools + (!providedID && !existing && !pending ? 1 : 0),
-    }
-  }
-  return state
-})
-
-const hasLateContent = (event: MistralEvent) => {
-  const delta = event.choices?.[0]?.delta
-  if (typeof delta?.content === "string" && delta.content.length > 0) return true
-  if (Array.isArray(delta?.content) && delta.content.length > 0) return true
-  return (delta?.tool_calls ?? []).some(
-    (tool) => Boolean(tool.id) || Boolean(tool.function?.name) || tool.function?.arguments !== undefined,
-  )
-}
-
-const step = Effect.fn("MistralChat.step")(function* (state: ParserState, event: MistralEvent) {
-  if (event.error) {
-    const body = ProviderShared.encodeJson(event)
-    return yield* new AIError({
-      reason: classifyProviderFailure({
-        message: event.error.message,
-        status: typeof event.error.code === "number" ? event.error.code : undefined,
-        rawBody: body,
-      }),
-    })
-  }
-  const events: LLMEvent[] = []
-  const usage = mapUsage(event.usage) ?? state.usage
-  if (state.finishReason) {
-    if (hasLateContent(event))
-      return yield* ProviderShared.eventError(
-        ADAPTER,
-        "Mistral Chat received content after the finish reason",
-        ProviderShared.encodeJson(event),
-      )
-    return [{ ...state, usage }, events] as const
-  }
-  const choice = event.choices?.[0]
-  const withContent = choice?.delta?.content == null ? state : appendContent(state, events, choice.delta.content)
-  const withTools = yield* appendTools(withContent, events, choice?.delta?.tool_calls ?? [])
-  if (!choice?.finish_reason) return [{ ...withTools, usage }, events] as const
-
-  const finishReason = {
-    normalized: mapFinishReason(choice.finish_reason),
-    raw: choice.finish_reason,
-  }
-  if (finishReason.normalized === "error") {
-    const details = {
-      message: `Mistral Chat stopped with ${finishReason.raw}`,
-      body: ProviderShared.encodeJson(event),
-    }
-    return yield* new AIError({
-      reason:
-        finishReason.raw === "network_error" ? new ProviderInternalError(details) : new UnknownProviderError(details),
-    })
-  }
-  const incomplete = finishReason.normalized === "length" || finishReason.normalized === "content-filter"
-  if (!incomplete && Object.keys(withTools.pendingTools).length > 0)
-    return yield* ProviderShared.eventError(
-      ADAPTER,
-      "Mistral Chat tool call delta is missing a name",
-      ProviderShared.encodeJson(event),
-    )
-  const finished =
-    !incomplete && Object.keys(withTools.tools).length > 0
-      ? yield* ToolStream.finishAll(ADAPTER, withTools.tools)
-      : undefined
-  return [
-    {
-      ...withTools,
-      tools: finished?.tools ?? withTools.tools,
-      completedTools: finished?.events ?? withTools.completedTools,
-      usage,
-      finishReason,
-    },
-    events,
-  ] as const
-})
-
-const finishEvents = Effect.fn("MistralChat.finishEvents")(function* (state: ParserState) {
-  if (!state.finishReason)
-    return yield* new AIError({
-      reason: new InvalidProviderOutputError({
-        message: "Mistral Chat stream ended without finish_reason",
-        classification: "incomplete-stream",
-        route: ADAPTER,
-      }),
-    })
-  const events: LLMEvent[] = []
-  const closed = closeActive(state, events)
-  const lifecycle = closed.completedTools.length > 0 ? Lifecycle.stepStart(closed.lifecycle, events) : closed.lifecycle
-  events.push(...closed.completedTools)
-  const reason =
-    state.finishReason.normalized === "stop" && closed.completedTools.some(LLMEvent.is.toolCall)
-      ? { ...state.finishReason, normalized: "tool-calls" as const }
-      : state.finishReason
-  Lifecycle.finish(lifecycle, events, { reason, usage: closed.usage })
-  return events
-})
-
-export const protocol = Protocol.make({
-  id: ADAPTER,
-  body: { schema: MistralBody, from: fromRequest },
-  stream: {
-    event: MistralStreamEvent,
-    initial: (): ParserState => ({
-      tools: ToolStream.empty<ToolKey>(),
-      pendingTools: {},
-      toolIDs: new Map(),
-      usedToolIDs: new Set(),
-      completedTools: [],
-      generatedTools: 0,
-      lifecycle: Lifecycle.initial(),
-      nextContent: 0,
-    }),
-    step: (state: ParserState, event) => (event === DONE ? Effect.succeed([state, []] as const) : step(state, event)),
-    terminal: (event) => event === DONE,
-    onHalt: finishEvents,
-  },
-})
-
-export const framing = Framing.sseWithDone
-export const httpTransport = HttpTransport.sseJson.with<MistralBody>().with({ framing })
-
-export const route = Route.make({
-  id: ADAPTER,
-  provider: "mistral",
-  providerMetadataKey: "mistral",
-  protocol,
-  endpoint: Endpoint.path(PATH, { baseURL: DEFAULT_BASE_URL }),
-  auth: Auth.none,
-  transport: httpTransport,
-})
-
-export * as MistralChat from "./mistral-chat.js"
@@ -18,6 +18,7 @@ const WebSocketResponseCreate = Schema.StructWithRest(Schema.Struct({ type: Sche
 ])
 const decodeMessage = ProviderShared.validateWith(Schema.decodeUnknownEffect(WebSocketResponseCreate))
 const encodeMessage = Schema.encodeSync(Schema.fromJsonString(WebSocketResponseCreate))
+const decodeEvent = Schema.decodeUnknownEffect(OpenResponses.protocol.stream.event)

 export interface Options {
  readonly id: string
@@ -26,7 +27,6 @@ export interface Options {
  readonly enabled?: (url: string) => boolean
  readonly url?: (url: string) => string
  readonly headers?: (headers: Headers.Headers) => Headers.Headers
-  readonly continuation?: OpenResponsesContinuation.Shape
 }

 export interface Prepared {
@@ -60,7 +60,7 @@ const driver = (options: Options, body: string): WebSocketChannelDriver => {
      }),
    observe: (_create, frame) =>
      Effect.gen(function* () {
-        const event = yield* OpenResponses.decodeChannelEvent(frame).pipe(
+        const event = yield* decodeEvent(frame).pipe(
          Effect.mapError((cause) =>
            ProviderShared.eventError(options.id, `Invalid ${options.name} WebSocket event`, frame, cause),
          ),
@@ -73,6 +73,11 @@ const driver = (options: Options, body: string): WebSocketChannelDriver => {
          )
        if (event.type === "error") {
          terminal = true
+          yield* OpenResponses.decodeKnownErrorEvent(event).pipe(
+            Effect.mapError((cause) =>
+              ProviderShared.eventError(options.id, `${options.name} returned a malformed error event`, frame, cause),
+            ),
+          )
          return {
            type: "provider-failure",
            error: OpenResponses.providerFailure(event, `${options.name} stream error`, frame),
@@ -108,8 +113,8 @@ const driver = (options: Options, body: string): WebSocketChannelDriver => {
          responseID = created
          return { type: "frame", frame }
        }
-        // Keepalives and provider notifications carry no response state and may precede response.created.
-        if (!event.type.startsWith("response.")) return { type: "frame", frame }
+        // Keepalives carry no response state and may arrive before response.created.
+        if (event.type === "keepalive") return { type: "frame", frame }
        if (!responseID)
          return yield* ProviderShared.eventError(
            options.id,
@@ -158,15 +163,10 @@ export const transport = <Body>(options: Options): Transport<Body, Prepared, str
                    request: create.request,
                    message: create.message,
                    base,
-                    continuation: options.continuation,
                  }),
                }
              })
            : undefined
-        if (input.webSocket && !channel)
-          yield* Effect.logWarning(`${options.name} does not offer WebSocket for this endpoint; using HTTP`, {
-            url: parts.url,
-          })
        return {
          http: {
            request: ProviderShared.jsonPost({ url: parts.url, body: parts.bodyText, headers: parts.headers }),
@@ -6,6 +6,7 @@ import { OpenResponses } from "./open-responses.js"

 const PROTOCOL = "open-responses.websocket.v1"
 const VERSION = 1
+const decodeEvent = Schema.decodeUnknownEffect(OpenResponses.protocol.stream.event)

 interface CheckpointValue {
  readonly version: typeof VERSION
@@ -14,19 +15,12 @@ interface CheckpointValue {
  readonly output: ReadonlyArray<unknown>
 }

-/**
- * Fields to send next to `previous_response_id` on an incremental step, or undefined to send the step in full.
- * Whether omitted fields carry over from the continued response is provider behavior the route must know.
- */
-export type Shape = (request: Readonly<Record<string, unknown>>) => Readonly<Record<string, unknown>> | undefined
-
 export interface DriverInput {
  readonly id: string
  readonly name: string
  readonly request: Readonly<Record<string, unknown>>
  readonly message: string
  readonly base: WebSocketChannelDriver
-  readonly continuation?: Shape
 }

 const checkpointValue = (checkpoint: ChannelCheckpoint | undefined): CheckpointValue | undefined => {
@@ -48,7 +42,6 @@ const canonical = (value: unknown): string => {
  if (Array.isArray(value)) return `[${value.map(canonical).join(",")}]`
  if (!ProviderShared.isRecord(value)) return ProviderShared.encodeJson(value)
  return `{${Object.keys(value)
-    .filter((key) => value[key] !== undefined)
    .sort()
    .map((key) => `${ProviderShared.encodeJson(key)}:${canonical(value[key])}`)
    .join(",")}}`
@@ -64,12 +57,7 @@ const comparable = (value: unknown) => {
  if (value.type === "message" && value.role === "assistant")
    return {
      role: "assistant",
-      // Annotations and logprobs describe the response, not the text replayed in model input.
-      content: Array.isArray(value.content)
-        ? value.content.map((part) =>
-            ProviderShared.isRecord(part) && part.type === "output_text" ? { type: part.type, text: part.text } : part,
-          )
-        : value.content,
+      content: value.content,
      ...(value.phase === undefined ? {} : { phase: value.phase }),
    }
  if (value.type === "function_call")
@@ -108,7 +96,7 @@ const incremental = (
  return input.slice(baseline.length)
 }

-const code = (event: OpenResponses.Event) => OpenResponses.errorDetail(event).code
+const code = (event: OpenResponses.Event) => event.code || event.error?.code || event.response?.error?.code || undefined

 const rejected = (
  observation: Extract<ChannelObservation, { readonly type: "provider-failure" }>,
@@ -133,26 +121,22 @@ const rejected = (

 export const driver = (input: DriverInput): WebSocketChannelDriver => {
  const { previous_response_id: _previousResponseID, ...request } = input.request
-  const shape = input.continuation ?? ((fields: Readonly<Record<string, unknown>>) => fields)
-  let output: OpenResponses.StreamItem[] = []
+  let output: unknown[] = []
  return {
    create: (checkpoint) =>
      Effect.sync(() => {
        output = []
        const previous = checkpointValue(checkpoint)
-        // Ask the route first: diffing the whole history is wasted when it declines the continuation.
-        const fields = previous ? shape(request) : undefined
-        const delta = previous && fields ? incremental(request, previous) : undefined
-        if (!previous || !fields || !delta)
-          return { message: ProviderShared.encodeJson(request), mode: "full" as const }
+        const delta = previous ? incremental(request, previous) : undefined
+        if (!previous || !delta) return { message: ProviderShared.encodeJson(request), mode: "full" as const }
        return {
-          message: ProviderShared.encodeJson({ ...fields, input: delta, previous_response_id: previous.responseID }),
+          message: ProviderShared.encodeJson({ ...request, input: delta, previous_response_id: previous.responseID }),
          mode: "incremental" as const,
        }
      }),
    observe: (create, frame) =>
      Effect.gen(function* () {
-        const event = yield* OpenResponses.decodeChannelEvent(frame).pipe(
+        const event = yield* decodeEvent(frame).pipe(
          Effect.mapError((cause) =>
            ProviderShared.eventError(input.id, `Invalid ${input.name} WebSocket event`, frame, cause),
          ),
@@ -163,23 +147,8 @@ export const driver = (input: DriverInput): WebSocketChannelDriver => {
          const rejection = code(event)
          if (rejection === "previous_response_not_found") return rejected(observation, "retry-full")
          if (rejection === "websocket_connection_limit_reached") return rejected(observation, "rotate-and-retry-full")
-          // Only the continuation distinguishes an incremental send from a full one, so an unclassified
-          // invalid request there is retried full; Codex reports a stale previous_response_id that way, with
-          // no code. Classified failures such as context overflow keep their runner-owned recovery.
-          if (
-            create.mode === "incremental" &&
-            observation.error.reason._tag === "InvalidRequest" &&
-            observation.error.reason.classification === undefined
-          )
-            return rejected(observation, "retry-full")
        }
        if (observation.type !== "completed") return observation
-        // A trigger installs a different context window. Clear the append baseline, retaining the socket.
-        if (
-          Array.isArray(request.input) &&
-          request.input.some((item) => ProviderShared.isRecord(item) && item.type === "compaction_trigger")
-        )
-          return observation
        const responseID = event.response?.id
        if (!responseID || responseID.trim().length === 0) return observation
        return {
@@ -190,14 +159,7 @@ export const driver = (input: DriverInput): WebSocketChannelDriver => {
              version: VERSION,
              responseID,
              request,
-              // Completion can re-encrypt reasoning. Callers replay the item already emitted by output_item.done.
-              output: event.response?.output?.length
-                ? event.response.output.map((item) =>
-                    item.type === "reasoning" && item.id !== undefined
-                      ? (output.find((done) => done.type === item.type && done.id === item.id) ?? item)
-                      : item,
-                  )
-                : output.slice(),
+              output: event.response?.output ? [...event.response.output] : output.slice(),
            } satisfies CheckpointValue,
          },
        }
@@ -205,4 +167,4 @@ export const driver = (input: DriverInput): WebSocketChannelDriver => {
  }
 }

-export * as OpenResponsesContinuation from "./open-responses-continuation.js"
+export const OpenResponsesContinuation = { driver } as const
@@ -1,9 +1,8 @@
 import { Effect, Schema } from "effect"
-import { Tool } from "@opencode/schema/tool"
+import { Tool } from "@opencode-ai/schema/tool"
 import { Route } from "../route/client.js"
 import { Auth } from "../route/auth.js"
 import { Endpoint } from "../route/endpoint.js"
-import { Framing } from "../route/framing.js"
 import { HttpTransport } from "../route/transport/index.js"
 import { Protocol } from "../route/protocol.js"
 import {
@@ -246,8 +245,6 @@ export const OpenAIChatEvent = Schema.StructWithRest(
  [Schema.Record(Schema.String, Schema.Unknown)],
 )
 export type OpenAIChatEvent = Schema.Schema.Type<typeof OpenAIChatEvent>
-const DONE = "[DONE]" as const
-const OpenAIChatStreamEvent = Schema.Union([Schema.Literal(DONE), Protocol.jsonEvent(OpenAIChatEvent)])
 type OpenAIChatRequestMessage = LLMRequest["messages"][number]

 interface PendingToolDelta {
@@ -315,16 +312,15 @@ const lowerToolCall = (part: ToolCallPart, options: LoweringOptions): OpenAIChat
  type: "function",
  function: {
    name: part.name,
-    arguments: ProviderShared.encodeJson(part.input === undefined ? {} : part.input),
+    arguments: ProviderShared.encodeJson(part.input),
  },
 })

 const lowerMedia = Effect.fn("OpenAIChat.lowerMedia")(function* (part: MediaPart) {
-  if (part.media.kind !== "image")
-    return yield* ProviderShared.invalidRequest(`OpenAI Chat does not support media type ${part.media.mediaType}`)
-  const url =
-    ProviderShared.mediaUrl(part.media) ?? (yield* ProviderShared.requireInlineMedia("OpenAI Chat", part.media)).dataUrl
-  return { type: "image_url" as const, image_url: { url } }
+  const media = ProviderShared.normalizeMedia(part)
+  if (!media.mime.startsWith("image/"))
+    return yield* ProviderShared.invalidRequest(`OpenAI Chat does not support media type ${part.mediaType}`)
+  return { type: "image_url" as const, image_url: { url: media.dataUrl } }
 })

 const openAICompatibleReasoningContent = (native: unknown) =>
@@ -457,7 +453,11 @@ const lowerToolMessages = Effect.fn("OpenAIChat.lowerToolMessages")(function* (
      cache_control: options.cacheControl?.(part.cache),
    })
    const files = content.filter((item) => item.type === "file")
-    images.push(...(yield* Effect.forEach(files, (item) => lowerMedia(ProviderShared.toolFileMedia(item)))))
+    images.push(
+      ...(yield* Effect.forEach(files, (item) =>
+        lowerMedia({ type: "media", mediaType: item.mime, data: item.uri, filename: item.name }),
+      )),
+    )
  }
  return { messages, images }
 })
@@ -708,11 +708,7 @@ const detectZaiToolStream = (provider: string, baseURL: string | undefined, mode

 const lowerOptions = (request: LLMRequest, supportsStore: boolean) => {
  const options = OpenAIOptions.resolve(request)
-  // Default off: strict providers 400 on unknown body fields, so only send
-  // the key where compatibility explicitly allows it. Header-based affinity
-  // (x-session-affinity, x-grok-conv-id, ...) is unaffected.
-  const cacheKey =
-    (request.model.compatibility?.supportsPromptCacheKey ?? false) ? ProviderShared.promptCacheKey(request) : undefined
+  const cacheKey = ProviderShared.promptCacheKey(request)
  return {
    ...(supportsStore && options.store !== undefined ? { store: options.store } : {}),
    // For providers that support `store`, ensure stateless `store:false` is sent
@@ -737,7 +733,6 @@ export const fromRequest = Effect.fn("OpenAIChat.fromRequest")(function* (
    )
  const generation = request.generation
  const toolSchemaCompatibility = request.model.compatibility?.toolSchema
-  const flattened = ProviderShared.flattenToolRequest(request)
  const provider = String(request.model.provider)
  const baseURL = request.model.route.endpoint.baseURL
  const detectedMaxTokensField = detectMaxTokensField(provider, baseURL)
@@ -750,16 +745,16 @@ export const fromRequest = Effect.fn("OpenAIChat.fromRequest")(function* (
  const zaiToolStream =
    request.model.compatibility?.zaiToolStream ?? detectZaiToolStream(provider, baseURL, request.model.id)
  const hasHistory = hasToolHistory(request.messages)
-  const hasActiveTools = flattened.tools.length > 0
+  const hasActiveTools = request.tools.length > 0
  return {
    model: request.model.id,
-    messages: yield* lowerMessages(flattened.request, options),
+    messages: yield* lowerMessages(request, options),
    tools:
-      flattened.tools.length === 0
+      request.tools.length === 0
        ? hasHistory
          ? []
          : undefined
-        : flattened.tools.map((tool) =>
+        : request.tools.map((tool) =>
            lowerTool(
              tool,
              ToolSchemaProjection.modelCompatibility(tool.inputSchema, toolSchemaCompatibility),
@@ -767,7 +762,7 @@ export const fromRequest = Effect.fn("OpenAIChat.fromRequest")(function* (
              supportsStrictMode,
            ),
          ),
-    tool_choice: hasActiveTools && request.toolChoice ? yield* lowerToolChoice(request.toolChoice) : undefined,
+    tool_choice: request.toolChoice ? yield* lowerToolChoice(request.toolChoice) : undefined,
    stream: true as const,
    ...(supportsUsageInStreaming ? { stream_options: { include_usage: true } } : {}),
    ...(zaiToolStream && hasActiveTools ? { tool_stream: true } : {}),
@@ -817,12 +812,7 @@ const mapFinishReason = Effect.fn("OpenAIChat.mapFinishReason")(function* (event
    case "tool_calls":
      return "tool-calls" as const
    default:
-      return yield* new AIError({
-        reason: new UnknownProviderError({
-          message: `Provider finish_reason: ${reason}`,
-          body: ProviderShared.encodeJson(event),
-        }),
-      })
+      return "unknown" as const
  }
 })

@@ -1007,12 +997,33 @@ const step = (state: ParserState, event: OpenAIChatEvent) =>
      lifecycle = Lifecycle.reasoningStart(lifecycle, events, "reasoning-0", deltaMetadata)
    const reasoningEmitted = state.reasoningEmitted || lifecycle.reasoning.has("reasoning-0")

-    // Reasoning is one response-wide channel: it stays open alongside text and
-    // refusal output so late reasoning deltas and details join the same block,
-    // and `finishEvents` closes it once with the complete metadata.
-    if (delta?.content) lifecycle = Lifecycle.textDelta(lifecycle, events, "text-0", delta.content)
+    if (delta?.content) {
+      lifecycle = Lifecycle.reasoningEnd(
+        lifecycle,
+        events,
+        "reasoning-0",
+        reasoningMetadata(
+          state.providerMetadataKey,
+          reasoningField,
+          reasoningDetailsObserved ? state.reasoningDetails : undefined,
+        ),
+      )
+      lifecycle = Lifecycle.textDelta(lifecycle, events, "text-0", delta.content)
+    }

-    if (delta?.refusal) lifecycle = Lifecycle.textDelta(lifecycle, events, "text-0", delta.refusal)
+    if (delta?.refusal) {
+      lifecycle = Lifecycle.reasoningEnd(
+        lifecycle,
+        events,
+        "reasoning-0",
+        reasoningMetadata(
+          state.providerMetadataKey,
+          reasoningField,
+          reasoningDetailsObserved ? state.reasoningDetails : undefined,
+        ),
+      )
+      lifecycle = Lifecycle.textDelta(lifecycle, events, "text-0", delta.refusal)
+    }

    // Compatible providers may omit indexes. Prefer durable identity, then use
    // batch position for parallel deltas or the latest call for sparse chunks.
@@ -1061,25 +1072,17 @@ const step = (state: ParserState, event: OpenAIChatEvent) =>
      events.push(...result.events)
    }

-    const incompleteTools = finishReason?.normalized === "content-filter" || finishReason?.normalized === "length"
-    if (
-      finishReason !== undefined &&
-      !incompleteTools &&
-      state.finishReason === undefined &&
-      Object.keys(pendingTools).length
-    )
+    if (finishReason !== undefined && state.finishReason === undefined && Object.keys(pendingTools).length > 0)
      return yield* ProviderShared.eventError(
        ADAPTER,
        "OpenAI Chat tool call delta is missing id or name",
        ProviderShared.encodeJson(event),
      )

-    // Filtering or truncation terminates the response without confirming pending tool calls.
+    // Finalize accumulated tool inputs eagerly when finish_reason arrives so
+    // valid calls and malformed local calls settle independently.
    const finished =
-      finishReason !== undefined &&
-      !incompleteTools &&
-      state.finishReason === undefined &&
-      Object.keys(tools).length > 0
+      finishReason !== undefined && state.finishReason === undefined && Object.keys(tools).length > 0
        ? yield* ToolStream.finishAll(ADAPTER, tools)
        : undefined

@@ -1126,12 +1129,10 @@ const finishEvents = Effect.fn("OpenAIChat.finishEvents")(function* (state: Pars
          state.finishReason.normalized === "stop" && hasToolCalls ? "tool-calls" : state.finishReason.normalized,
      }
    : { normalized: hasToolCalls ? ("tool-calls" as const) : ("stop" as const) }
-  // Snapshot details at publish time so the emitted event never observes later
-  // mutation of the accumulated `reasoningDetails` array.
  const metadata = reasoningMetadata(
    state.providerMetadataKey,
    state.reasoningField,
-    state.reasoningDetailsObserved ? [...state.reasoningDetails] : undefined,
+    state.reasoningDetailsObserved ? state.reasoningDetails : undefined,
  )
  const started =
    state.reasoningDetailsObserved && !state.reasoningEmitted
@@ -1165,7 +1166,7 @@ export const protocol = Protocol.make({
    from: fromRequest,
  },
  stream: {
-    event: OpenAIChatStreamEvent,
+    event: Protocol.jsonEvent(OpenAIChatEvent),
    initial: (request) => ({
      providerMetadataKey: request.model.route.providerMetadataKey ?? String(request.model.provider),
      tools: ToolStream.empty<number>(),
@@ -1179,14 +1180,12 @@ export const protocol = Protocol.make({
      nextToolIndex: 0,
      requireFinishReason: request.model.compatibility?.requireFinishReason ?? true,
    }),
-    step: (state: ParserState, event) => (event === DONE ? Effect.succeed([state, []] as const) : step(state, event)),
-    terminal: (event) => event === DONE,
+    step,
    onHalt: finishEvents,
  },
 })

-export const framing = Framing.sseWithDone
-export const httpTransport = HttpTransport.sseJson.with<OpenAIChatBody>().with({ framing })
+export const httpTransport = HttpTransport.sseJson.with<OpenAIChatBody>()

 export const route = Route.make({
  id: ADAPTER,
@@ -1,5 +1,6 @@
 import { Route, type RouteRoutedLanguageModelInput } from "../route/client.js"
 import { Endpoint } from "../route/endpoint.js"
+import { Framing } from "../route/framing.js"
 import * as OpenAIChat from "./openai-chat.js"

 const ADAPTER = "openai-compatible-chat"
@@ -18,7 +19,7 @@ export const route = Route.make({
  providerMetadataKey: "openai",
  protocol: OpenAIChat.protocol,
  endpoint: Endpoint.path("/chat/completions"),
-  framing: OpenAIChat.framing,
+  framing: Framing.sse,
 })

 export * as OpenAICompatibleChat from "./openai-compatible-chat.js"
@@ -1,39 +1,43 @@
-import { Effect, Schema } from "effect"
-import type { HttpClientResponse } from "effect/unstable/http"
-import { ImageModel, ImageResponse, type ImageRequestFor } from "../image.js"
-import { Media } from "../media.js"
-import { MediaProtocol } from "../route/media-protocol.js"
-import { MediaRoute } from "../route/media.js"
-import { ProviderID, mergeJsonRecords } from "../schema/index.js"
+import { Effect, Encoding, Schema } from "effect"
+import { Headers, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+import {
+  ImageModel,
+  GeneratedImage,
+  ImageResponse,
+  type ImageInput,
+  type ImageRequestFor,
+  type ImageRoute,
+} from "../image.js"
+import { Auth, type Definition as AuthDefinition } from "../route/auth.js"
+import { Usage, mergeHttpOptions, mergeJsonRecords, type HttpOptions } from "../schema/index.js"
 import { ProviderShared } from "./shared.js"
-import { MediaInput } from "./utils/media-input.js"
+import { ImageInputs } from "./utils/image-input.js"
+import { OpenAIImage } from "./utils/openai-image.js"

 const ADAPTER = "openai-images"
-const NAME = "OpenAI Images"
-const PROVIDER = ProviderID.make("openai")
 export const DEFAULT_BASE_URL = "https://api.openai.com/v1"
 export const PATH = "/images/generations"
 export const EDIT_PATH = "/images/edits"

-// ---------------------------------------------------------------------------
-// 1. Public model input
-// ---------------------------------------------------------------------------
-
 export type OpenAIImageString<Known extends string> = Known | (string & {})

-/** Provider-native options. Common fields (`n`, `size`, `format`, `images`, `mask`) live on the request. */
 export type OpenAIImageOptions = {
+  readonly mask?: ImageInput
+  readonly n?: number
+  readonly size?: OpenAIImageString<
+    "auto" | "256x256" | "512x512" | "1024x1024" | "1536x1024" | "1024x1536" | "1792x1024" | "1024x1792"
+  >
  readonly quality?: OpenAIImageString<"auto" | "low" | "medium" | "high" | "standard" | "hd">
  readonly background?: OpenAIImageString<"auto" | "opaque" | "transparent">
  readonly moderation?: OpenAIImageString<"auto" | "low">
+  readonly outputFormat?: OpenAIImageString<"png" | "jpeg" | "webp">
  readonly outputCompression?: number
 } & Record<string, unknown>

-export type Request = ImageRequestFor<OpenAIImageOptions>
-
-// ---------------------------------------------------------------------------
-// 2. Response schema
-// ---------------------------------------------------------------------------
+export type OpenAIImageBody = Record<string, unknown> & {
+  readonly model: string
+  readonly prompt: string
+}

 const OpenAIImageResponse = Schema.Struct({
  data: Schema.Array(
@@ -55,146 +59,196 @@ const OpenAIImageResponse = Schema.Struct({
  ),
 })

-// ---------------------------------------------------------------------------
-// 5. Request body construction
-// ---------------------------------------------------------------------------
-
-/** Multipart field names the route owns; `http.body` overlays cannot smuggle replacements for them. */
-const RESERVED_FORM_FIELDS = new Set(["model", "prompt", "image", "image[]", "images", "mask"])
+export interface ModelInput {
+  readonly id: string
+  readonly auth: AuthDefinition
+  readonly baseURL?: string
+  readonly headers?: Record<string, string>
+  readonly http?: HttpOptions
+}

 const nativeOptions = (options: OpenAIImageOptions | undefined) => {
  if (!options) return undefined
-  const { outputCompression, ...native } = options
-  return { output_compression: outputCompression, ...native }
-}
-
-const isEdit = (request: Request) => (request.images?.length ?? 0) > 0
-
-const isInline = (asset: Media.Asset) => asset.inline() !== undefined
-
-const blob = (data: Uint8Array, mediaType: string) => {
-  const buffer = new ArrayBuffer(data.byteLength)
-  new Uint8Array(buffer).set(data)
-  return new Blob([buffer], { type: mediaType })
-}
-
-const reference = (asset: Media.Asset) =>
-  ProviderShared.mediaReference(asset, PROVIDER, NAME).pipe(
-    Effect.map((item) => (item.type === "ref" ? { file_id: item.value } : { image_url: item.value })),
-  )
-
-const fromRequest = Effect.fn("OpenAIImages.fromRequest")(function* (request: Request) {
-  const images = request.images ?? []
-  const mask = request.mask
-  if (mask !== undefined && images.length === 0)
-    return yield* ProviderShared.invalidRequest("An OpenAI image mask requires at least one input image")
-  const fields = mergeJsonRecords(
-    { n: request.n, size: request.size, output_format: request.format },
-    nativeOptions(request.providerOptions),
-    request.http?.body,
-  )
-
-  // Owned bytes go through multipart edits; remote URLs and file IDs use the JSON edits body instead.
-  if (images.length > 0 && images.every(isInline) && (mask === undefined || isInline(mask))) {
-    const form = new FormData()
-    form.append("model", request.model.id)
-    form.append("prompt", request.prompt)
-    Object.entries(fields ?? {}).forEach(([key, value]) => {
-      if (RESERVED_FORM_FIELDS.has(key)) return
-      form.append(key, typeof value === "string" ? value : ProviderShared.encodeJson(value))
-    })
-    const uploads = yield* Effect.forEach(images, (image) => MediaInput.inlineBytes(ADAPTER, image))
-    uploads.forEach((data, index) => form.append("image[]", blob(data, images[index].mediaType), `image-${index}`))
-    if (mask !== undefined)
-      form.append("mask", blob(yield* MediaInput.inlineBytes(ADAPTER, mask), mask.mediaType), "mask")
-    return MediaProtocol.multipart(form)
+  const { mask: _, outputFormat, outputCompression, ...native } = options
+  return {
+    output_format: outputFormat,
+    output_compression: outputCompression,
+    ...native,
  }
-
-  const references = yield* Effect.forEach(images, reference)
-  const maskReference = mask === undefined ? undefined : yield* reference(mask)
-  return MediaProtocol.json(
-    mergeJsonRecords(
-      {
-        model: request.model.id,
-        prompt: request.prompt,
-        images: references.length === 0 ? undefined : references,
-        mask: maskReference,
-      },
-      fields,
-    ) ?? {},
-  )
-})
-
-// ---------------------------------------------------------------------------
-// 6. Response decoding
-// ---------------------------------------------------------------------------
-
-const requestedFormat = (body: MediaProtocol.Body) => {
-  const value = body.type === "json" ? body.value.output_format : body.value.get("output_format")
-  return typeof value === "string" ? value : undefined
 }

-const decodeResponse = Effect.fn("OpenAIImages.decodeResponse")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-  context: MediaProtocol.DecodeContext<Request>,
-) {
-  const output = yield* MediaProtocol.decodeJson(ADAPTER, NAME, OpenAIImageResponse)(response)
-  const decoded = output.value
-  const format = decoded.output_format ?? requestedFormat(context.body) ?? "png"
-  const mediaType = `image/${format}`
-  const images = yield* Effect.forEach(decoded.data, (item, index) => {
-    const providerMetadata =
-      item.revised_prompt === undefined ? undefined : { openai: { revisedPrompt: item.revised_prompt } }
-    if (item.b64_json)
-      return MediaInput.decodedAsset(output.invalid, `${NAME} result ${index}`, item.b64_json, mediaType, {
-        info: { format },
-        providerMetadata,
+const applyQuery = (url: string, query: Record<string, string> | undefined) => {
+  if (!query) return url
+  const next = new URL(url)
+  Object.entries(query).forEach(([key, value]) => next.searchParams.set(key, value))
+  return next.toString()
+}
+
+export const model = (input: ModelInput) => {
+  const route: ImageRoute<OpenAIImageOptions> = {
+    id: ADAPTER,
+    generate: Effect.fn("OpenAIImages.generate")(function* (request: ImageRequestFor<OpenAIImageOptions>, execute) {
+      const mask = request.options?.mask
+      if (mask !== undefined && (request.images?.length ?? 0) === 0)
+        return yield* ImageInputs.invalid("An OpenAI image mask requires at least one input image")
+      const http = mergeHttpOptions(request.model.http, request.http)
+      const sourceImages = request.images ?? []
+      const multipartImages = yield* Effect.forEach(sourceImages, (image) => {
+        if (image.type === "bytes") return Effect.succeed({ data: image.data, mediaType: image.mediaType })
+        if (image.type === "url") return ImageInputs.decodeDataUrl(image.url)
+        return Effect.undefined
      })
-    if (item.url) return Effect.succeed(Media.url(item.url, { mediaType, info: { format }, providerMetadata }))
-    return Effect.fail(output.invalid(`${NAME} result ${index} has neither image data nor a URL`))
+      const multipartMask =
+        mask === undefined
+          ? undefined
+          : mask.type === "bytes"
+            ? { data: mask.data, mediaType: mask.mediaType }
+            : mask.type === "url"
+              ? yield* ImageInputs.decodeDataUrl(mask.url)
+              : undefined
+      const useMultipart =
+        sourceImages.length > 0 &&
+        multipartImages.every((image) => image !== undefined) &&
+        (mask === undefined || multipartMask !== undefined)
+      const path = sourceImages.length === 0 ? PATH : EDIT_PATH
+      const url = applyQuery(`${(input.baseURL ?? DEFAULT_BASE_URL).replace(/\/$/, "")}${path}`, http?.query)
+
+      if (useMultipart) {
+        const form = new FormData()
+        form.append("model", request.model.id)
+        form.append("prompt", request.prompt)
+        Object.entries(mergeJsonRecords(nativeOptions(request.options), http?.body) ?? {}).forEach(([key, value]) => {
+          if (["model", "prompt", "image", "image[]", "images", "mask"].includes(key)) return
+          form.append(key, typeof value === "string" ? value : ProviderShared.encodeJson(value))
+        })
+        multipartImages.forEach((image, index) => {
+          if (image === undefined) return
+          form.append("image[]", imageBlob(image.data, image.mediaType), `image-${index}`)
+        })
+        if (multipartMask !== undefined)
+          form.append("mask", imageBlob(multipartMask.data, multipartMask.mediaType), "mask")
+        const headers = yield* Auth.toEffect(input.auth)({
+          request,
+          method: "POST",
+          url,
+          body: "[multipart/form-data]",
+          headers: Headers.remove(Headers.fromInput({ ...input.headers, ...http?.headers }), "content-type"),
+        })
+        const response = yield* execute(
+          HttpClientRequest.post(url).pipe(HttpClientRequest.setHeaders(headers), HttpClientRequest.bodyFormData(form)),
+        )
+        return yield* parseResponse(response, request.options, http?.body)
+      }
+
+      const references = sourceImages.map((image) => {
+        if (image.type === "bytes") return { image_url: ImageInputs.dataUrl(image) }
+        if (image.type === "url") return { image_url: image.url }
+        if (image.type === "file-id") return { file_id: image.id }
+        return undefined
+      })
+      if (references.some((image) => image === undefined))
+        return yield* ImageInputs.invalid("OpenAI Images accepts image URLs, data URLs, bytes, and file IDs")
+      const maskReference =
+        mask === undefined
+          ? undefined
+          : mask.type === "bytes"
+            ? { image_url: ImageInputs.dataUrl(mask) }
+            : mask.type === "url"
+              ? { image_url: mask.url }
+              : mask.type === "file-id"
+                ? { file_id: mask.id }
+                : undefined
+      if (mask !== undefined && maskReference === undefined)
+        return yield* ImageInputs.invalid("OpenAI Images accepts masks as URLs, data URLs, bytes, or file IDs")
+      const requestBody = mergeJsonRecords(
+        {
+          model: request.model.id,
+          prompt: request.prompt,
+          images: references.length === 0 ? undefined : references,
+          mask: maskReference,
+        },
+        nativeOptions(request.options),
+        http?.body,
+      ) as OpenAIImageBody
+      const text = ProviderShared.encodeJson(requestBody)
+      const headers = yield* Auth.toEffect(input.auth)({
+        request,
+        method: "POST",
+        url,
+        body: text,
+        headers: Headers.fromInput({ ...input.headers, ...http?.headers }),
+      })
+      const response = yield* execute(
+        HttpClientRequest.post(url).pipe(
+          HttpClientRequest.setHeaders(headers),
+          HttpClientRequest.bodyText(text, "application/json"),
+        ),
+      )
+      return yield* parseResponse(response, request.options, http?.body)
+    }),
+  }
+  return ImageModel.make<OpenAIImageOptions>({ id: input.id, provider: "openai", route, http: input.http })
+}
+
+const parseResponse = Effect.fn("OpenAIImages.parseResponse")(function* (
+  response: HttpClientResponse.HttpClientResponse,
+  options: OpenAIImageOptions | undefined,
+  overlay: Record<string, unknown> | undefined,
+) {
+  const output = yield* ProviderShared.imageResponse(ADAPTER, "OpenAI Images", response)
+  const decoded = yield* Schema.decodeUnknownEffect(Schema.fromJsonString(OpenAIImageResponse))(output.body).pipe(
+    Effect.mapError((cause) => output.invalid("OpenAI Images returned an invalid response", cause)),
+  )
+  const requestBody = mergeJsonRecords(nativeOptions(options), overlay)
+  const format =
+    decoded.output_format ?? (typeof requestBody?.output_format === "string" ? requestBody.output_format : "png")
+  const images = yield* Effect.forEach(decoded.data, (item, index) => {
+    if (item.b64_json)
+      return Effect.fromResult(Encoding.decodeBase64(item.b64_json)).pipe(
+        Effect.mapError((cause) => output.invalid(`OpenAI Images result ${index} contains invalid base64 data`, cause)),
+        Effect.map(
+          (data) =>
+            new GeneratedImage({
+              mediaType: `image/${format}`,
+              data,
+              providerMetadata:
+                item.revised_prompt === undefined ? undefined : { openai: { revisedPrompt: item.revised_prompt } },
+            }),
+        ),
+      )
+    if (item.url)
+      return Effect.succeed(
+        new GeneratedImage({
+          mediaType: `image/${format}`,
+          data: item.url,
+          providerMetadata:
+            item.revised_prompt === undefined ? undefined : { openai: { revisedPrompt: item.revised_prompt } },
+        }),
+      )
+    return Effect.fail(output.invalid(`OpenAI Images result ${index} has neither image data nor a URL`))
  })
-  if (images.length === 0) return yield* output.invalid(`${NAME} returned no images`)
+  if (images.length === 0) return yield* output.invalid("OpenAI Images returned no images")
  return new ImageResponse({
    images,
    usage:
      decoded.usage === undefined
        ? undefined
-        : {
-            type: "tokens",
-            input: decoded.usage.input_tokens,
-            output: decoded.usage.output_tokens,
-            total: decoded.usage.total_tokens,
-            details: { openai: decoded.usage },
-          },
+        : new Usage({
+            inputTokens: decoded.usage.input_tokens,
+            outputTokens: decoded.usage.output_tokens,
+            totalTokens: decoded.usage.total_tokens,
+            providerMetadata: { openai: decoded.usage },
+          }),
    providerMetadata: { openai: { outputFormat: format } },
  })
 })

-// ---------------------------------------------------------------------------
-// 7. Protocol and route
-// ---------------------------------------------------------------------------
-
-export const protocol = MediaProtocol.inline<Request, ImageResponse>({
-  id: ADAPTER,
-  name: NAME,
-  unsupported: ["aspectRatio", "seed"],
-  body: { from: fromRequest },
-  response: { decode: decodeResponse },
-})
-
-export const model = (input: MediaRoute.ModelInput) =>
-  ImageModel.fromRoute<OpenAIImageOptions>(
-    {
-      id: ADAPTER,
-      provider: PROVIDER,
-      protocol,
-      baseURL: DEFAULT_BASE_URL,
-      path: ({ request }) => (isEdit(request) ? EDIT_PATH : PATH),
-    },
-    input,
-  )
+const imageBlob = (data: Uint8Array, mediaType: string) => {
+  const buffer = new ArrayBuffer(data.byteLength)
+  new Uint8Array(buffer).set(data)
+  return new Blob([buffer], { type: mediaType })
+}

 export const OpenAIImages = {
-  protocol,
  model,
 } as const
@@ -5,17 +5,13 @@ import { Auth } from "../route/auth.js"
 import { Endpoint } from "../route/endpoint.js"
 import { Protocol } from "../route/protocol.js"
 import { HttpTransport } from "../route/transport/index.js"
-import { LLMRequest, mergeJsonRecords, type JsonSchema, type ToolDefinition, type ToolEntry } from "../schema/index.js"
-import { resolveEffortUpdates } from "../effort-updates.js"
+import { LLMRequest, type JsonSchema, type ToolDefinition } from "../schema/index.js"
 import { OpenResponses } from "./open-responses.js"
-import { OpenResponsesOptions } from "./utils/open-responses-options.js"
 import { JsonObject, optionalArray, optionalNull, ProviderShared } from "./shared.js"
 import { OpenAIImage } from "./utils/openai-image.js"
 import { ResponsesHostedTools } from "./utils/responses-hosted-tools.js"
 import { ToolSchemaProjection } from "./utils/tool-schema.js"
 import { OpenResponsesChannel } from "./open-responses-channel.js"
-import { ResponsesCompaction } from "./utils/responses-compaction.js"
-import { ResponsesCheckpoint } from "./utils/responses-checkpoint.js"

 const ADAPTER = "openai-responses"
 const NAME = "OpenAI Responses"
@@ -24,14 +20,6 @@ const WEBSOCKET_ROTATE_AFTER_MS = 55 * 60 * 1000
 export const DEFAULT_BASE_URL = "https://api.openai.com/v1"
 export const PATH = OpenResponses.PATH

-export const ContextManagement = Schema.Array(
-  Schema.Struct({
-    type: Schema.Literal("compaction"),
-    compactThreshold: Schema.optional(Schema.Int.check(Schema.isGreaterThan(0))),
-  }),
-)
-export type ContextManagement = typeof ContextManagement.Type
-
 const OpenAIResponsesImageGenerationTool = Schema.Struct({
  type: Schema.tag("image_generation"),
  action: Schema.optional(Schema.Literals(["auto", "generate", "edit"])),
@@ -78,43 +66,18 @@ const OpenAIResponsesHostedToolItem = Schema.Union([
  ),
 ])

-const OpenAIResponsesNamespace = Schema.Struct({
-  type: Schema.tag("namespace"),
-  name: Schema.String,
-  description: Schema.String,
-  tools: Schema.Array(OpenResponses.Tool),
-})
-
-const OpenAIResponsesTools = Schema.Union([
-  OpenResponses.Tool,
-  OpenAIResponsesNamespace,
-  OpenAIResponsesImageGenerationTool,
-])
+const OpenAIResponsesTools = Schema.Union([OpenResponses.Tool, OpenAIResponsesImageGenerationTool])

 const OpenAIResponsesToolChoice = Schema.Union([
  OpenResponses.ToolChoice,
  Schema.Struct({ type: Schema.tag("image_generation") }),
 ])

-const OpenAIResponsesInputItem = Schema.Union([
-  OpenResponses.InputItem,
-  OpenAIResponsesHostedToolItem,
-  OpenResponses.ConfigurationUpdate,
-])
-
 const OpenAIResponsesCoreFields = {
  ...OpenResponses.coreFields,
-  input: Schema.Array(OpenAIResponsesInputItem),
+  input: Schema.Array(Schema.Union([OpenResponses.InputItem, OpenAIResponsesHostedToolItem])),
  tools: optionalArray(OpenAIResponsesTools),
  tool_choice: Schema.optional(OpenAIResponsesToolChoice),
-  context_management: Schema.optional(
-    Schema.Array(
-      Schema.Struct({
-        type: Schema.Literal("compaction"),
-        compact_threshold: Schema.optional(Schema.Int.check(Schema.isGreaterThan(0))),
-      }),
-    ),
-  ),
 }

 const OpenAIResponsesBody = Schema.Struct({
@@ -123,31 +86,11 @@ const OpenAIResponsesBody = Schema.Struct({
 })
 export type OpenAIResponsesBody = Schema.Schema.Type<typeof OpenAIResponsesBody>

-/** Request control, never conversation content. */
-export const CompactionTrigger = Schema.Struct({ type: Schema.Literal("compaction_trigger") })
-const CheckpointBody = Schema.Struct({
-  ...OpenAIResponsesBody.fields,
-  input: Schema.Array(Schema.Union([OpenAIResponsesInputItem, CompactionTrigger])),
-  store: Schema.Literal(false),
-  prompt_cache_retention: optionalNull(Schema.String),
-  prompt_cache_options: optionalNull(
-    Schema.Struct({ mode: Schema.optional(Schema.String), ttl: Schema.optional(Schema.String) }),
-  ),
-})
-
-const adapter = {
+const extension = {
  id: ADAPTER,
  name: NAME,
-  restoreHostedToolItem: (item: unknown) => (Schema.is(OpenAIResponsesHostedToolItem)(item) ? item : undefined),
-} satisfies OpenResponses.ProviderAdapter
-
-// Only GPT-6 Astra accepts `configuration_update`, and never alongside automatic `context_management` compaction.
-const supportsEffortUpdates = (request: LLMRequest) => {
-  if (request.providerOptions?.contextManagement !== undefined) return false
-  const override = request.model.compatibility?.supportsEffortUpdates
-  if (override !== undefined) return override
-  return /(?:^|\/)gpt-6-astra$/i.test(request.model.id)
-}
+  lowerHostedToolItem: (item: unknown) => (Schema.is(OpenAIResponsesHostedToolItem)(item) ? item : undefined),
+} satisfies OpenResponses.Extension

 const nativeImageToolInput = (tool: ToolDefinition) => {
  const native = tool.native?.openai
@@ -168,33 +111,13 @@ const lowerTool = Effect.fn("OpenAIResponses.lowerTool")(function* (tool: ToolDe
  return yield* OpenResponses.lowerTool(NAME, tool, inputSchema)
 })

-// Native namespaces hold only function tools, so deeper levels flatten into
-// the leaf names the same way non-native protocols flatten the whole tree.
-const lowerToolEntry = Effect.fn("OpenAIResponses.lowerToolEntry")(function* (
-  tool: ToolEntry,
-  compatibility: Parameters<typeof ToolSchemaProjection.modelCompatibility>[1],
-) {
-  if (tool.type === "tool")
-    return yield* lowerTool(tool, ToolSchemaProjection.modelCompatibility(tool.inputSchema, compatibility))
-  // OpenAI requires a namespace description; fall back to a generic one so a
-  // missing description never blocks the request.
-  return {
-    type: "namespace" as const,
-    name: tool.name,
-    description: tool.description ?? `Tools in the ${tool.name} namespace.`,
-    tools: yield* Effect.forEach(ProviderShared.flattenTools(tool.tools), (leaf) =>
-      OpenResponses.lowerTool(NAME, leaf, ToolSchemaProjection.modelCompatibility(leaf.inputSchema, compatibility)),
-    ),
-  }
-})
-
-const lowerToolChoice = (toolChoice: NonNullable<LLMRequest["toolChoice"]>, tools: ReadonlyArray<ToolEntry>) =>
+const lowerToolChoice = (toolChoice: NonNullable<LLMRequest["toolChoice"]>, tools: ReadonlyArray<ToolDefinition>) =>
  ProviderShared.matchToolChoice(NAME, toolChoice, {
    auto: () => "auto" as const,
    none: () => "none" as const,
    required: () => "required" as const,
    tool: (name) =>
-      tools.some((tool) => tool.type === "tool" && tool.name === name && nativeImageTool(tool) !== undefined)
+      tools.some((tool) => tool.name === name && nativeImageTool(tool) !== undefined)
        ? ({ type: "image_generation" } as const)
        : { type: "function" as const, name },
  })
@@ -202,57 +125,26 @@ const lowerToolChoice = (toolChoice: NonNullable<LLMRequest["toolChoice"]>, tool
 const decodeBody = ProviderShared.validateWith(Schema.decodeUnknownEffect(OpenAIResponsesBody))

 const fromRequest = Effect.fn("OpenAIResponses.fromRequest")(function* (request: LLMRequest) {
-  const management = yield* ProviderShared.validateWith(
-    Schema.decodeUnknownEffect(Schema.UndefinedOr(ContextManagement)),
-  )(request.providerOptions?.contextManagement)
-  const options = OpenResponsesOptions.resolve(request)
-  const updates = resolveEffortUpdates(request, options.reasoningEffort)
+  const body = yield* OpenResponses.fromRequestWithExtension(
+    LLMRequest.update(request, { tools: [], toolChoice: undefined }),
+    extension,
+  )
  const toolSchemaCompatibility = request.model.compatibility?.toolSchema
+  const parallelToolCalls = OpenResponses.resolveParallelToolCalls(request)
  return yield* decodeBody({
-    ...(yield* OpenResponses.lowerConversation(updates.request, adapter)),
-    ...OpenResponses.lowerGeneration(request, { ...options, reasoningEffort: updates.effort }),
-    context_management: management?.map((edit) => ({ type: edit.type, compact_threshold: edit.compactThreshold })),
+    ...body,
+    ...(parallelToolCalls === undefined ? {} : { parallel_tool_calls: parallelToolCalls }),
    tools:
      request.tools.length === 0
        ? undefined
-        : yield* Effect.forEach(request.tools, (tool) => lowerToolEntry(tool, toolSchemaCompatibility)),
+        : yield* Effect.forEach(request.tools, (tool) =>
+            lowerTool(tool, ToolSchemaProjection.modelCompatibility(tool.inputSchema, toolSchemaCompatibility)),
+          ),
    tool_choice:
-      request.tools.length === 0
-        ? undefined
-        : (OpenResponses.allowedToolChoice(request) ??
-          (request.toolChoice ? yield* lowerToolChoice(request.toolChoice, request.tools) : undefined)),
+      body.tool_choice ?? (request.toolChoice ? yield* lowerToolChoice(request.toolChoice, request.tools) : undefined),
  })
 })

-const checkpointBody = {
-  schema: CheckpointBody,
-  from: Effect.fn("OpenAIResponses.checkpointBody")(function* (request: LLMRequest) {
-    const native = yield* fromRequest(LLMRequest.update(request, { toolChoice: undefined }))
-    const overlay = request.http?.body
-    // Complete history is required for stateless replay and SSE recovery. Raw input overrides bypass that contract.
-    if (
-      overlay?.input !== undefined ||
-      overlay?.previous_response_id !== undefined ||
-      overlay?.conversation !== undefined
-    )
-      return yield* ProviderShared.invalidRequest(
-        "Trigger compaction requires complete canonical history, not an input or continuation override",
-      )
-    return yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(CheckpointBody))({
-      ...mergeJsonRecords(native, overlay),
-      input: [...native.input, { type: "compaction_trigger" }],
-      stream: true,
-      store: false,
-      parallel_tool_calls: true,
-      tool_choice: undefined,
-      context_management: undefined,
-      text: undefined,
-      max_output_tokens: undefined,
-      max_tool_calls: undefined,
-    })
-  }),
-}
-
 const hostedToolResult = Effect.fn("OpenAIResponses.hostedToolResult")(function* (item: ResponsesHostedTools.Item) {
  const isError = item.error !== undefined && item.error !== null
  if (item.type === "image_generation_call" && item.result) {
@@ -292,11 +184,12 @@ const HOSTED_TOOLS = {
  },
 } as const satisfies ResponsesHostedTools.Definitions

-const step = (state: OpenResponses.ParserState, input: OpenResponses.Event) => {
-  const event = OpenResponses.normalize(state, input)
+const step = (state: OpenResponses.ParserState, event: OpenResponses.Event) => {
  if (event.type === "response.reasoning_text.delta")
    return event.item_id !== undefined
-      ? Effect.succeed(OpenResponses.onReasoningDelta(state, event, event.item_id))
+      ? Effect.succeed(
+          OpenResponses.onReasoningDelta(state, event, OpenResponses.outputItemID(state, event) ?? event.item_id),
+        )
      : ProviderShared.eventError(ADAPTER, `${event.type} is missing item_id`)
  if (event.type === "response.output_item.done" && event.item && ResponsesHostedTools.isItem(event.item, HOSTED_TOOLS))
    return ResponsesHostedTools.onDone(state, event.item, HOSTED_TOOLS)
@@ -311,11 +204,10 @@ export const protocol = Protocol.make({
  },
  stream: {
    event: OpenResponses.protocol.stream.event,
-    initial: (request) => OpenResponses.initial(request, adapter),
+    initial: (request) => OpenResponses.initial(request, extension),
    step,
    terminal: OpenResponses.terminal,
  },
-  supportsEffortUpdates,
 })

 const endpoint = Endpoint.path<OpenAIResponsesBody>(PATH, { baseURL: DEFAULT_BASE_URL })
@@ -331,7 +223,6 @@ export const transport = channelTransport({
 })

 export const route = Route.make({
-  compact: { endpoint: ResponsesCompaction.make(adapter), trigger: ResponsesCheckpoint.make(checkpointBody) },
  id: ADAPTER,
  provider: "openai",
  providerMetadataKey: "openai",
@@ -1,204 +0,0 @@
-import { Duration, Effect, Schema } from "effect"
-import type { HttpClientResponse } from "effect/unstable/http"
-import type { Status } from "../generation.js"
-import { Media } from "../media.js"
-import { MediaProtocol } from "../route/media-protocol.js"
-import { MediaRoute } from "../route/media.js"
-import { ProviderID, mergeJsonRecords } from "../schema/index.js"
-import { VideoModel, VideoResponse, type VideoRequestFor } from "../video.js"
-import { ProviderShared, optionalArray, optionalNull } from "./shared.js"
-
-const ADAPTER = "runway-video"
-const NAME = "Runway"
-const PROVIDER = ProviderID.make("runway")
-export const DEFAULT_BASE_URL = "https://api.dev.runwayml.com/v1"
-/** Every Runway request must pin the API version. */
-export const API_VERSION = "2024-11-06"
-export const TEXT_TO_VIDEO_PATH = "/text_to_video"
-export const IMAGE_TO_VIDEO_PATH = "/image_to_video"
-export const VIDEO_TO_VIDEO_PATH = "/video_to_video"
-export const TASKS_PATH = "/tasks"
-/** Output URLs are valid for 24–48 hours; the asset carries the conservative bound. */
-const OUTPUT_RETENTION = Duration.hours(24)
-
-// ---------------------------------------------------------------------------
-// 1. Public model input
-// ---------------------------------------------------------------------------
-
-export type RunwayVideoString<Known extends string> = Known | (string & {})
-
-/**
- * Provider-native options. Common fields lower to Runway's names: `aspectRatio` → `ratio` (Runway expects pixel
- * ratios such as `1280:720` for most models), `durationSeconds` → `duration`, `audio`, `negativePrompt`,
- * `resolution`, `references`, and `frames` → `promptImage`.
- */
-export type RunwayVideoOptions = {
-  readonly contentModeration?: { readonly publicFigureThreshold?: RunwayVideoString<"auto" | "low"> }
-  readonly outputFormat?: RunwayVideoString<"mp4" | "prores" | "png_sequence">
-} & Record<string, unknown>
-
-export type Request = VideoRequestFor<RunwayVideoOptions>
-
-// ---------------------------------------------------------------------------
-// 2. Token and response schemas
-// ---------------------------------------------------------------------------
-
-export const Token = Schema.Struct({ taskID: Schema.String })
-export type Token = Schema.Schema.Type<typeof Token>
-
-const Cost = Schema.Struct({ credits: Schema.Number })
-
-const StartResponse = Schema.Struct({ id: Schema.String })
-
-const Task = Schema.Struct({
-  status: Schema.String,
-  progress: optionalNull(Schema.Number),
-  output: optionalArray(Schema.String),
-  failure: optionalNull(Schema.String),
-  failureCode: optionalNull(Schema.String),
-  cost: Schema.optional(Cost),
-  estimatedCost: Schema.optional(Cost),
-})
-
-const STATUS = {
-  PENDING: "queued",
-  THROTTLED: "queued",
-  RUNNING: "running",
-  SUCCEEDED: "completed",
-  FAILED: "failed",
-  CANCELLED: "cancelled",
-} as const satisfies Record<string, Status>
-
-// ---------------------------------------------------------------------------
-// 5. Request body construction
-// ---------------------------------------------------------------------------
-
-// Runway accepts HTTPS URLs, `runway://` upload URIs, and data URIs, all as one string.
-const mediaUri = (asset: Media.Asset) =>
-  ProviderShared.mediaReference(asset, PROVIDER, NAME).pipe(Effect.map((reference) => reference.value))
-
-const fromRequest = Effect.fn("RunwayVideo.fromRequest")(function* (request: Request) {
-  const first = request.frames?.first === undefined ? undefined : yield* mediaUri(request.frames.first)
-  const last = request.frames?.last === undefined ? undefined : yield* mediaUri(request.frames.last)
-  const promptImage = [
-    ...(first === undefined ? [] : [{ uri: first, position: "first" }]),
-    ...(last === undefined ? [] : [{ uri: last, position: "last" }]),
-  ]
-  const videoUri = request.video === undefined ? undefined : yield* mediaUri(request.video)
-  const references = yield* Effect.forEach(request.references ?? [], (asset) =>
-    mediaUri(asset).pipe(Effect.map((uri) => ({ uri }))),
-  )
-  return MediaProtocol.json(
-    mergeJsonRecords(
-      {
-        model: request.model.id,
-        promptText: request.prompt,
-        promptImage: promptImage.length === 0 ? undefined : promptImage,
-        videoUri,
-        references: references.length === 0 ? undefined : references,
-        ratio: request.aspectRatio,
-        duration: request.durationSeconds,
-        resolution: request.resolution,
-        audio: request.audio,
-        negativePrompt: request.negativePrompt,
-        seed: request.seed,
-      },
-      request.providerOptions,
-      request.http?.body,
-    ) ?? {},
-  )
-})
-
-// ---------------------------------------------------------------------------
-// 6. Response decoding
-// ---------------------------------------------------------------------------
-
-const decodeStart = MediaProtocol.decodeStarted(ADAPTER, NAME, StartResponse, (value) => ({
-  token: { taskID: value.id },
-  snapshot: { id: value.id, status: "queued" },
-}))
-
-const decodeTask = MediaProtocol.decodeJson(ADAPTER, NAME, Task)
-
-const decodeStatus = Effect.fn("RunwayVideo.decodeStatus")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-  context: MediaProtocol.PollContext<Token>,
-) {
-  const output = yield* decodeTask(response)
-  const status = yield* MediaProtocol.status(STATUS, output.value.status, output)
-  return { id: context.token.taskID, status, progress: output.value.progress ?? undefined }
-})
-
-const decodeResult = Effect.fn("RunwayVideo.decodeResult")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-  context: MediaProtocol.PollContext<Token>,
-) {
-  const output = yield* decodeTask(response)
-  const task = output.value
-  const status = yield* MediaProtocol.status(STATUS, task.status, output)
-  if (status === "failed") {
-    const code = task.failureCode ?? undefined
-    const message = `${NAME} task failed${code === undefined ? "" : ` (${code})`}${task.failure ? `: ${task.failure}` : ""}`
-    // Runway failure codes are dotted paths; every moderation outcome carries a SAFETY segment.
-    if (code !== undefined && /(^|\.)SAFETY(\.|$)/.test(code)) return yield* output.contentPolicy(message)
-    return yield* output.ended("failed", message)
-  }
-  if (status === "cancelled")
-    return yield* output.ended("cancelled", `${NAME} task ${context.token.taskID} was cancelled`)
-  if (status !== "completed") return yield* output.invalid(`${NAME} task ${context.token.taskID} has not finished`)
-  const urls = task.output ?? []
-  if (urls.length === 0) return yield* output.invalid(`${NAME} task succeeded without any output`)
-  return new VideoResponse({
-    videos: yield* Effect.forEach(urls, (url) =>
-      MediaProtocol.expiringUrl(url, OUTPUT_RETENTION, { mediaType: "video/mp4" }),
-    ),
-    usage: task.cost === undefined ? undefined : { type: "credits", credits: task.cost.credits },
-    providerMetadata: {
-      runway: {
-        taskId: context.token.taskID,
-        estimatedCredits: task.estimatedCost?.credits,
-      },
-    },
-  })
-})
-
-// ---------------------------------------------------------------------------
-// 7. Protocol and route
-// ---------------------------------------------------------------------------
-
-const taskPath = (token: Token) => `${TASKS_PATH}/${token.taskID}`
-
-export const protocol = MediaProtocol.queued<Request, VideoResponse, Token>({
-  id: ADAPTER,
-  name: NAME,
-  token: Token,
-  unsupported: ["n"],
-  start: { body: { from: fromRequest }, decode: decodeStart },
-  status: { path: taskPath, decode: decodeStatus },
-  result: { path: taskPath, decode: decodeResult },
-  cancel: { method: "DELETE", path: taskPath },
-})
-
-const startPath = (request: Request) => {
-  if (request.video !== undefined) return VIDEO_TO_VIDEO_PATH
-  if (request.frames?.first !== undefined || request.frames?.last !== undefined) return IMAGE_TO_VIDEO_PATH
-  return TEXT_TO_VIDEO_PATH
-}
-
-export const model = (input: MediaRoute.ModelInput) =>
-  VideoModel.fromRoute<RunwayVideoOptions, Token>(
-    {
-      id: ADAPTER,
-      provider: PROVIDER,
-      protocol,
-      baseURL: DEFAULT_BASE_URL,
-      headers: { "X-Runway-Version": API_VERSION },
-      path: ({ request }) => startPath(request),
-    },
-    input,
-  )
-
-export const RunwayVideo = {
-  protocol,
-  model,
-} as const
@@ -1,21 +1,17 @@
-import { Tool } from "@opencode/schema/tool"
-import { Effect, Option, Schema, Stream } from "effect"
+import { Buffer } from "node:buffer"
+import { Tool } from "@opencode-ai/schema/tool"
+import { Effect, Schema, Stream } from "effect"
 import * as Sse from "effect/unstable/encoding/Sse"
-import { Headers, HttpClientRequest } from "effect/unstable/http"
-import { Media } from "../media.js"
+import { Headers, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
 import {
  InvalidProviderOutputError,
  InvalidRequestError,
-  UnsupportedOperationError,
  AIError,
-  LLMRequest,
-  Message,
-  ToolDefinition,
+  HttpContext,
  type ContentPart,
+  type LLMRequest,
  type MediaPart,
-  type ProviderID,
  type TextPart,
-  type ToolEntry,
  type ToolResultPart,
 } from "../schema/index.js"
 import { isRecord } from "../utils/record.js"
@@ -28,16 +24,6 @@ const isJson = Schema.is(Schema.Json)
 export const JsonObject = Schema.Record(Schema.String, Schema.Unknown)
 export const optionalArray = <const S extends Schema.Top>(schema: S) => Schema.optional(Schema.Array(schema))
 export const optionalNull = <const S extends Schema.Top>(schema: S) => Schema.optional(Schema.NullOr(schema))
-/** Optional field whose malformed value decodes to `undefined` instead of failing the enclosing struct. */
-export const lenient = <const S extends Schema.Top>(schema: S) =>
-  Schema.optionalKey(
-    Schema.UndefinedOr(schema).pipe(Schema.catchDecoding(() => Effect.succeed(Option.some(undefined)))),
-  )
-/** Provider-defined string enum: known values for autocomplete, any string accepted at runtime. */
-export const knownString = <Known extends string>() =>
-  Schema.declare<Known | (string & {})>((value): value is Known | (string & {}) => typeof value === "string", {
-    expected: "string",
-  })

 export const OPENAI_PROMPT_CACHE_KEY_MAX_LENGTH = 64

@@ -58,7 +44,6 @@ export const promptCacheKey = (request: LLMRequest): string | undefined => {
 export interface ToolAccumulator {
  readonly id: string
  readonly name: string
-  readonly namespace?: string
  readonly input: string
 }

@@ -178,55 +163,24 @@ export const wrappedSystemUpdate = Effect.fn("ProviderShared.wrappedSystemUpdate
 export const parseToolInput = (route: string, name: string, raw: string) =>
  parseJson(route, raw || "{}", `Invalid JSON input for ${route} tool call ${name}`)

-/** Inline view or a typed `InvalidRequest` for routes that cannot fetch URLs or dereference provider refs. */
-export const requireInlineMedia = (route: string, asset: Media.Asset): Effect.Effect<Media.Inline, AIError> => {
-  const inline = asset.inline()
-  return inline ? Effect.succeed(inline) : Effect.fail(inlineRequired(route, asset))
+export interface NormalizedMedia {
+  readonly mime: string
+  readonly base64: string
+  readonly dataUrl: string
 }

-export const inlineRequired = (route: string, asset: Media.Asset) =>
-  invalidRequest(
-    `${route} requires inline media (bytes or base64); ${asset.source.type} sources must be materialized first`,
-  )
-
-/** The remote URL of a `url` asset, for protocols that accept `http(s)` references natively. */
-export const mediaUrl = (asset: Media.Asset) => (asset.source.type === "url" ? asset.source.url : undefined)
-
-export type MediaReference = { readonly type: "dataUrl" | "url" | "ref"; readonly value: string }
-
-/**
- * The one string a provider can address an asset by: inline payloads as a data URL, `url` sources as their URL, and
- * this provider's own `ref` as its id. Other providers' refs are never forwarded and fail typed; omit `provider` for
- * APIs with no file handles at all.
- */
-export const mediaReference = (
-  asset: Media.Asset,
-  provider: ProviderID | undefined,
-  label: string,
-): Effect.Effect<MediaReference, AIError> => {
-  const inline = asset.inline()
-  if (inline) return Effect.succeed({ type: "dataUrl", value: inline.dataUrl })
-  const url = mediaUrl(asset)
-  if (url) return Effect.succeed({ type: "url", value: url })
-  if (provider !== undefined && asset.source.type === "ref" && asset.source.provider === provider)
-    return Effect.succeed({ type: "ref", value: asset.source.id })
-  const accepted = provider === undefined ? "" : `, and ${provider} references`
-  return Effect.fail(invalidRequest(`${label} accepts inline bytes, data URLs, http(s) URLs${accepted}`))
+export const normalizeMedia = (part: MediaPart): NormalizedMedia => {
+  const mime = part.mediaType.toLowerCase()
+  if (typeof part.data !== "string") {
+    const base64 = Buffer.from(part.data).toString("base64")
+    return { mime, base64, dataUrl: `data:${mime};base64,${base64}` }
+  }
+  if (!part.data.startsWith("data:")) return { mime, base64: part.data, dataUrl: `data:${mime};base64,${part.data}` }
+  return { mime, base64: part.data.slice(part.data.indexOf(",") + 1), dataUrl: part.data }
 }

-/**
- * Lift a tool-result file into a `MediaPart`. Tool files carry either a data URL, an `http(s)` URL, or raw base64 in
- * `uri`; the declared `mime` wins over any data-URL prefix so tool authors control the type the model sees.
- */
-export const toolFileMedia = (item: Tool.FileContent): MediaPart => {
-  const parsed = Media.parseDataUrl(item.uri)
-  const asset = parsed
-    ? Media.from({ ...parsed.source, mediaType: item.mime })
-    : /^https?:\/\//.test(item.uri)
-      ? Media.url(item.uri, { mediaType: item.mime })
-      : Media.base64(item.uri, item.mime)
-  return Message.media(asset, { filename: item.name })
-}
+export const normalizeToolFile = (part: Tool.FileContent) =>
+  normalizeMedia({ type: "media", mediaType: part.mime, data: part.uri, filename: part.name })

 export const trimBaseUrl = (value: string) => value.replace(/\/+$/, "")

@@ -253,16 +207,15 @@ export const errorText = (error: unknown) => {

 /**
 * `framing` step for Server-Sent Events. Decodes UTF-8, runs the SSE channel
- * decoder, optionally filters named events, and drops empty events. `[DONE]`
- * is dropped by default or retained for protocols that use it as their stream
- * boundary. Retry control events are ignored without interrupting the stream.
+ * decoder, optionally filters named events, and drops empty / `[DONE]`
+ * keep-alive events so the protocol event schema sees one JSON string per
+ * element. Retry control events are ignored without interrupting the stream.
 * Decoder failures become provider output errors so the public error channel
 * stays `AIError`.
 */
 export const sseFraming = (
  bytes: Stream.Stream<Uint8Array, AIError>,
  events?: ReadonlySet<string>,
-  includeDone = false,
 ): Stream.Stream<string, AIError> =>
  bytes.pipe(
    Stream.decodeText(),
@@ -287,7 +240,7 @@ export const sseFraming = (
      (event) =>
        (events === undefined || events.has(event.event)) &&
        event.data.length > 0 &&
-        (event.data !== "[DONE]" || includeDone || (events !== undefined && event.event !== "message")),
+        (event.data !== "[DONE]" || (events !== undefined && event.event !== "message")),
    ),
    Stream.map((event) => event.data),
  )
@@ -300,60 +253,33 @@ export const invalidRequest = (message: string, cause?: unknown) =>
    reason: new InvalidRequestError({ message, cause }),
  })

-/**
- * Canonical constructor for operations the selected route does not implement.
- * Prefer this over `invalidRequest` when the failure is a missing route
- * capability rather than a malformed caller input, so consumers can branch on
- * `reason._tag` plus `reason.operation` instead of matching message text.
- */
-export const unsupportedOperation = (input: {
-  readonly operation: string
-  readonly message: string
-  readonly provider?: ProviderID
-  readonly route?: string
-  readonly cause?: unknown
-}) =>
-  new AIError({
-    reason: new UnsupportedOperationError({
-      operation: input.operation,
-      message: input.message,
-      provider: input.provider,
-      route: input.route,
-      cause: input.cause,
-    }),
-  })
-
-/**
- * Lower namespaces to flat definitions for protocols without a native
- * namespace construct. Leaf names join their namespace path with `_` because
- * `.` is not broadly accepted in provider tool names.
- */
-export const flattenTools = (tools: ReadonlyArray<ToolEntry>, path: ReadonlyArray<string> = []) => {
-  const flat = tools.flatMap((tool): ReadonlyArray<ToolDefinition> => {
-    if (tool.type === "namespace") return flattenTools(tool.tools, [...path, tool.name])
-    if (path.length === 0) return [tool]
-    return [new ToolDefinition({ ...tool, name: [...path, tool.name].join("_") })]
-  })
-  return [...new Map(flat.map((tool) => [tool.name, tool])).values()]
-}
-
-export const flattenToolRequest = (request: LLMRequest) => {
-  const messages = request.messages.map((message) => {
-    const content = message.content.map((part) => {
-      if ((part.type !== "tool-call" && part.type !== "tool-result") || part.namespace === undefined) return part
-      return { ...part, name: `${part.namespace}_${part.name}`, namespace: undefined }
-    })
-    return content.every((part, index) => part === message.content[index])
-      ? message
-      : new Message({ ...message, content })
-  })
+export const imageResponse = Effect.fn("ProviderShared.imageResponse")(function* (
+  route: string,
+  name: string,
+  response: HttpClientResponse.HttpClientResponse,
+) {
+  const http = new HttpContext({ url: response.request.url, status: response.status, headers: response.headers })
+  const body = yield* response.text.pipe(
+    Effect.mapError(
+      (cause) =>
+        new AIError({
+          reason: new InvalidProviderOutputError({
+            route,
+            message: `Failed to read the ${name} response`,
+            http,
+            cause,
+          }),
+        }),
+    ),
+  )
  return {
-    tools: flattenTools(request.tools),
-    request: messages.every((message, index) => message === request.messages[index])
-      ? request
-      : LLMRequest.update(request, { messages }),
+    body,
+    invalid: (message: string, cause?: unknown) =>
+      new AIError({
+        reason: new InvalidProviderOutputError({ route, message, body, http, cause }),
+      }),
  }
-}
+})

 export const matchToolChoice = <Auto, None, Required, Tool>(
  route: string,
@@ -2,12 +2,13 @@ import { AwsV4Signer } from "aws4fetch"
 import { Effect } from "effect"
 import { Headers } from "effect/unstable/http"
 import { Auth, type AuthInput } from "../../route/auth.js"
-import { AIError, AuthenticationError } from "../../schema/index.js"
 import { ProviderShared } from "../shared.js"

 /**
 * AWS credentials for SigV4 signing. Bedrock also supports Bearer API key auth,
- * which provider facades configure as route auth instead of SigV4.
+ * which provider facades configure as route auth instead of SigV4. STS-vended
+ * credentials should be refreshed by the consumer (rebuild the model) before
+ * they expire; the route does not refresh.
 */
 export interface Credentials {
  readonly region: string
@@ -16,44 +17,6 @@ export interface Credentials {
  readonly sessionToken?: string
 }

-/** Static credentials or an effect resolved before every request. */
-export type CredentialSource = Credentials | Effect.Effect<Credentials, AIError>
-
-export interface DefaultChainOptions {
-  readonly region: string
-  /** Shared config profile passed to the AWS default chain. */
-  readonly profile?: string
-}
-
-/**
- * Resolve credentials through the AWS default provider chain: environment
- * variables, shared config and SSO caches, web identity tokens, process
- * credentials, and container or instance metadata. A fresh chain runs on every
- * request so credentials rotated on disk without an expiration (for example
- * shared-config keys rewritten by a corporate SSO tool) are always re-read;
- * the SDK's own memoization would otherwise pin them for the process lifetime.
- */
-export const defaultChain = (options: DefaultChainOptions): Effect.Effect<Credentials, AIError> =>
-  Effect.tryPromise({
-    try: async () => {
-      const { fromNodeProviderChain } = await import("@aws-sdk/credential-providers")
-      const identity = await fromNodeProviderChain(options.profile === undefined ? {} : { profile: options.profile })()
-      return {
-        region: options.region,
-        accessKeyId: identity.accessKeyId,
-        secretAccessKey: identity.secretAccessKey,
-        ...(identity.sessionToken === undefined ? {} : { sessionToken: identity.sessionToken }),
-      }
-    },
-    catch: (error) =>
-      new AIError({
-        reason: new AuthenticationError({
-          message: `AWS default credential chain failed: ${ProviderShared.errorText(error)}`,
-          cause: error,
-        }),
-      }),
-  })
-
 const signRequest = (input: {
  readonly url: string
  readonly body: string
@@ -85,17 +48,16 @@ const signRequest = (input: {

 /** Sign the exact JSON bytes with SigV4 using credentials configured on the route. */
 export const sigV4 = (
-  source: CredentialSource | undefined,
+  credentials: Credentials | undefined,
  options: { readonly service?: string; readonly name?: string } = {},
 ) =>
  Auth.custom((input: AuthInput) => {
    return Effect.gen(function* () {
-      if (!source) {
+      if (!credentials) {
        return yield* ProviderShared.invalidRequest(
          `${options.name ?? "Bedrock Converse"} requires either route bearer auth or AWS credentials configured on the route`,
        )
      }
-      const credentials = Effect.isEffect(source) ? yield* source : source
      const headersForSigning = Headers.set(input.headers, "content-type", "application/json")
      const signed = yield* signRequest({
        url: input.url,
@@ -112,35 +74,4 @@ export const sigV4 = (
 /** Bedrock route auth defaults to SigV4 and expects credentials from route configuration. */
 export const auth = sigV4(undefined)

-export const resolveRegion = (input: {
-  readonly region?: string
-  readonly credentials?: { readonly region: string }
-}) =>
-  input.region ?? input.credentials?.region ?? process.env.AWS_REGION ?? process.env.AWS_DEFAULT_REGION ?? "us-east-1"
-
-export interface ResolveAuthInput {
-  readonly apiKey?: string
-  readonly credentials?: Credentials
-  readonly profile?: string
-}
-
-export interface ResolveAuthOptions {
-  readonly service?: string
-  readonly name?: string
-  /** `sigv4` ignores an ambient `AWS_BEARER_TOKEN_BEDROCK`; `bearer` is validated by the caller. */
-  readonly mode?: "bearer" | "sigv4"
-}
-
-/**
- * Bearer wins over SigV4 and explicit static credentials win over the default
- * chain, matching the AWS SDK's own precedence for `AWS_BEARER_TOKEN_BEDROCK`.
- * The region is applied to the SigV4 scope so it always matches the endpoint host.
- */
-export const resolveAuth = (input: ResolveAuthInput, region: string, options: ResolveAuthOptions = {}) => {
-  const apiKey = options.mode === "sigv4" ? undefined : (input.apiKey ?? process.env.AWS_BEARER_TOKEN_BEDROCK)
-  if (apiKey !== undefined) return Auth.bearer(apiKey)
-  if (input.credentials !== undefined) return sigV4({ ...input.credentials, region }, options)
-  return sigV4(defaultChain({ region, profile: input.profile }), options)
-}
-
 export * as BedrockAuth from "./bedrock-auth.js"
@@ -1,6 +1,6 @@
 import { Schema } from "effect"
 import type { CacheHint } from "../../schema/index.js"
-import { newBreakpoints, ttlBucket } from "./cache.js"
+import { newBreakpoints, ttlBucket, type Breakpoints } from "./cache.js"

 // Bedrock cache markers are positional: emit a `cachePoint` block immediately
 // after the content the caller wants treated as a cacheable prefix. Bedrock
@@ -13,46 +13,24 @@ export const CachePointBlock = Schema.Struct({
 })
 export type CachePointBlock = Schema.Schema.Type<typeof CachePointBlock>

-const LEGACY_CLAUDE = ["anthropic.claude-instant", "anthropic.claude-v1", "anthropic.claude-v2", "anthropic.claude-3-"]
-
-// These legacy Claude releases support explicit caching, but only for five minutes.
-const CLAUDE_5M = [
-  "anthropic.claude-3-5-sonnet-20241022-v2:0",
-  "anthropic.claude-3-5-haiku-20241022-v1:0",
-  "anthropic.claude-3-7-sonnet-20250219-v1:0",
-  "anthropic.claude-sonnet-4-20250514-v1:0",
-  "anthropic.claude-opus-4-20250514-v1:0",
-  "anthropic.claude-opus-4-1-20250805-v1:0",
-]
-
-// Callers share the four-breakpoint budget across system, messages, and tools.
+// Callers pass a shared counter through every `block()` call site so the
+// four-breakpoint budget is respected across `system`, `messages`, and `tools`.
 export const BEDROCK_BREAKPOINT_CAP = 4

-export const breakpoints = (modelID: string) => {
-  // Substring matching also handles regional prefixes and model-bearing ARNs.
-  const short = CLAUDE_5M.some((id) => modelID.includes(id))
-  return {
-    ...newBreakpoints(BEDROCK_BREAKPOINT_CAP),
-    // Assume modern Claude releases retain caching support; older generations need an explicit exception.
-    // Other model families use implicit caching where available.
-    supported: modelID.includes("anthropic.claude-") && (short || !LEGACY_CLAUDE.some((id) => modelID.includes(id))),
-    ttl1h: !short,
-  }
-}
-export type Breakpoints = ReturnType<typeof breakpoints>
+export type { Breakpoints } from "./cache.js"
+export const breakpoints = () => newBreakpoints(BEDROCK_BREAKPOINT_CAP)

 const DEFAULT_5M: CachePointBlock = { cachePoint: { type: "default" } }
 const DEFAULT_1H: CachePointBlock = { cachePoint: { type: "default", ttl: "1h" } }

 export const block = (breakpoints: Breakpoints, cache: CacheHint | undefined): CachePointBlock | undefined => {
-  if (!breakpoints.supported) return undefined
  if (cache?.type !== "ephemeral" && cache?.type !== "persistent") return undefined
  if (breakpoints.remaining <= 0) {
    breakpoints.dropped += 1
    return undefined
  }
  breakpoints.remaining -= 1
-  return breakpoints.ttl1h && ttlBucket(cache.ttlSeconds) === "1h" ? DEFAULT_1H : DEFAULT_5M
+  return ttlBucket(cache.ttlSeconds) === "1h" ? DEFAULT_1H : DEFAULT_5M
 }

 export * as BedrockCache from "./bedrock-cache.js"
@@ -1,4 +1,4 @@
-import { Effect, Encoding, Schema } from "effect"
+import { Effect, Schema } from "effect"
 import type { MediaPart } from "../../schema/index.js"
 import { ProviderShared } from "../shared.js"

@@ -57,64 +57,28 @@ const documentBlock = (name: string, format: DocumentFormat, bytes: string): Doc
  },
 })

-function documentName(filename: string | undefined, names: Set<string>) {
-  const base =
-    (filename ?? "")
-      .replace(/\.[^.]*$/, "")
-      .replace(/[^a-zA-Z0-9 ()[\]-]/g, " ")
-      .replace(/\s+/g, " ")
-      .trim()
-      .slice(0, 200)
-      .trim() || "document"
-  let name = base
-  // Converse requires labels to be unique across the entire request, including tool results.
-  for (let index = 2; names.has(name); index++) {
-    const suffix = ` ${index}`
-    name = `${base.slice(0, 200 - suffix.length).trimEnd()}${suffix}`
-  }
-  names.add(name)
-  return name
-}
-
-const mediaBase64 = Effect.fn("BedrockMedia.mediaBase64")(function* (part: MediaPart) {
-  const media = yield* ProviderShared.requireInlineMedia("Bedrock Converse", part.media)
-  const bytes = yield* Effect.fromResult(Encoding.decodeBase64(media.base64)).pipe(
-    Effect.mapError((cause) =>
-      ProviderShared.invalidRequest("Bedrock Converse media data must be valid base64", cause),
-    ),
-  )
-  return Encoding.encodeBase64(bytes)
-})
-
 // Route by MIME. Known image/document formats lower into a typed block; anything
 // else fails with a clear error instead of silently degrading to a malformed
 // document block. Image MIME types not in `IMAGE_FORMATS` (e.g. `image/svg+xml`)
 // get an image-specific error so the caller knows it's a format-support issue,
 // not a kind-detection issue.
-export const lower = Effect.fn("BedrockMedia.lower")(function* (part: MediaPart, documentNames: Set<string>) {
-  const mime = part.media.mediaType.toLowerCase()
+export const lower = Effect.fn("BedrockMedia.lower")(function* (part: MediaPart) {
+  const mime = part.mediaType.toLowerCase()
  const imageFormat = IMAGE_FORMATS[mime as keyof typeof IMAGE_FORMATS]
  if (imageFormat) {
-    return [{ image: { format: imageFormat, source: { bytes: yield* mediaBase64(part) } } } satisfies ImageBlock]
+    const media = ProviderShared.normalizeMedia(part)
+    return { image: { format: imageFormat, source: { bytes: media.base64 } } } satisfies ImageBlock
  }
  if (mime.startsWith("image/"))
-    return yield* ProviderShared.invalidRequest(
-      `Bedrock Converse does not support image media type ${part.media.mediaType}`,
-    )
+    return yield* ProviderShared.invalidRequest(`Bedrock Converse does not support image media type ${part.mediaType}`)
  const documentFormat = DOCUMENT_FORMATS[mime as keyof typeof DOCUMENT_FORMATS]
  if (documentFormat) {
-    const name = documentName(part.filename, documentNames)
-    const block = documentBlock(name, documentFormat, yield* mediaBase64(part))
-    return part.filename !== undefined && part.filename !== name
-      ? [
-          {
-            text: `Attached file ${ProviderShared.encodeJson(part.filename)} has document label ${ProviderShared.encodeJson(name)}.`,
-          },
-          block,
-        ]
-      : [block]
+    if (!part.filename)
+      return yield* ProviderShared.invalidRequest("Bedrock Converse document media requires a filename")
+    const media = ProviderShared.normalizeMedia(part)
+    return documentBlock(part.filename, documentFormat, media.base64)
  }
-  return yield* ProviderShared.invalidRequest(`Bedrock Converse does not support media type ${part.media.mediaType}`)
+  return yield* ProviderShared.invalidRequest(`Bedrock Converse does not support media type ${part.mediaType}`)
 })

 export * as BedrockMedia from "./bedrock-media.js"
@@ -0,0 +1,31 @@
+import { Effect, Encoding } from "effect"
+import type { ImageInput } from "../../image.js"
+import { InvalidRequestError, AIError } from "../../schema/index.js"
+
+const invalid = (message: string, cause?: unknown) =>
+  new AIError({
+    reason: new InvalidRequestError({ message, cause }),
+  })
+
+export const dataUrl = (input: Extract<ImageInput, { readonly type: "bytes" }>) =>
+  `data:${input.mediaType};base64,${Encoding.encodeBase64(input.data)}`
+
+export const decodeDataUrl = (
+  url: string,
+): Effect.Effect<{ readonly mediaType: string; readonly data: Uint8Array } | undefined, AIError> => {
+  if (!url.startsWith("data:")) return Effect.undefined
+  const match = /^data:([^;,]+);base64,(.*)$/s.exec(url)
+  if (!match) return Effect.fail(invalid("Image data URLs must contain a MIME type and base64 data"))
+  return Effect.fromResult(Encoding.decodeBase64(match[2])).pipe(
+    Effect.mapError((cause) => invalid("Image data URL contains invalid base64 data", cause)),
+    Effect.map((data) => ({ mediaType: match[1], data })),
+  )
+}
+
+export const invalidImageInput = invalid
+
+export const ImageInputs = {
+  dataUrl,
+  decodeDataUrl,
+  invalid: invalidImageInput,
+} as const
@@ -62,31 +62,22 @@ export const reasoningEnd = (
  events: LLMEvent[],
  id: string,
  providerMetadata?: ProviderMetadata,
-  /** Authoritative complete value; replaces accumulated deltas when present. */
-  text?: string,
 ): State => {
  if (!state.reasoning.has(id)) return state
  const stepped = stepStart(state, events)
-  events.push(LLMEvent.reasoningEnd({ id, text, providerMetadata }))
+  events.push(LLMEvent.reasoningEnd({ id, providerMetadata }))
  const reasoning = new Set(stepped.reasoning)
  reasoning.delete(id)
  return { ...stepped, reasoning }
 }

-export const textEnd = (
-  state: State,
-  events: LLMEvent[],
-  id: string,
-  providerMetadata?: ProviderMetadata,
-  /** Authoritative complete value; replaces accumulated deltas when present. */
-  text?: string,
-): State => {
+export const textEnd = (state: State, events: LLMEvent[], id: string, providerMetadata?: ProviderMetadata): State => {
  if (!state.text.has(id)) return state
  const stepped = stepStart(state, events)
-  events.push(LLMEvent.textEnd({ id, text, providerMetadata }))
-  const open = new Set(stepped.text)
-  open.delete(id)
-  return { ...stepped, text: open }
+  events.push(LLMEvent.textEnd({ id, providerMetadata }))
+  const text = new Set(stepped.text)
+  text.delete(id)
+  return { ...stepped, text }
 }

 const closeOpenBlocks = (state: State, events: LLMEvent[]): State => {
@@ -1,33 +0,0 @@
-import { Effect, Encoding } from "effect"
-import { Media } from "../../media.js"
-import type { AIError, ProviderID } from "../../schema/index.js"
-import { ProviderShared } from "../shared.js"
-
-/** Owned bytes for multipart uploads; decodes `base64` sources and rejects remote sources. */
-export const inlineBytes = (route: string, asset: Media.Asset): Effect.Effect<Uint8Array, AIError> => {
-  if (asset.source.type === "bytes") return Effect.succeed(asset.source.data)
-  const inline = asset.inline()
-  if (!inline) return Effect.fail(ProviderShared.inlineRequired(route, asset))
-  return Effect.fromResult(Encoding.decodeBase64(inline.base64)).pipe(
-    Effect.mapError((cause) => ProviderShared.invalidRequest(`${route} media contains invalid base64 data`, cause)),
-  )
-}
-
-/** Provider file handle when the ref belongs to this provider; refs from other providers are never forwarded. */
-export const refID = (asset: Media.Asset, provider: ProviderID) =>
-  asset.source.type === "ref" && asset.source.provider === provider ? asset.source.id : undefined
-
-/** Decode a provider's base64 output once into an owned `bytes` asset, sniffing the type when it is not declared. */
-export const decodedAsset = (
-  invalid: (message: string, cause?: unknown) => AIError,
-  label: string,
-  data: string,
-  mediaType: string | undefined,
-  options?: Media.AssetOptions,
-) =>
-  Effect.fromResult(Encoding.decodeBase64(data)).pipe(
-    Effect.mapError((cause) => invalid(`${label} contains invalid base64 data`, cause)),
-    Effect.map((bytes) => Media.bytes(bytes, mediaType, options)),
-  )
-
-export * as MediaInput from "./media-input.js"
@@ -1,11 +0,0 @@
-// Responses image items can omit output_format, including when PNG/JPEG was requested.
-export const mediaType = (data: Uint8Array, format?: string) => {
-  if (format !== undefined) return `image/${format}`
-  if (data[0] === 137 && data[1] === 80 && data[2] === 78 && data[3] === 71) return "image/png"
-  if (data[0] === 255 && data[1] === 216 && data[2] === 255) return "image/jpeg"
-  if (new TextDecoder().decode(data.slice(0, 4)) === "RIFF" && new TextDecoder().decode(data.slice(8, 12)) === "WEBP")
-    return "image/webp"
-  return "application/octet-stream"
-}
-
-export * as MetaImage from "./meta-image.js"
@@ -1,34 +0,0 @@
-import type { LLMRequest } from "../../schema/index.js"
-
-export const valid = /^[A-Za-z0-9]{9}$/
-
-export const hash = (value: string) => {
-  const hash = (seed: number) => {
-    let result = seed
-    for (const char of value) result = Math.imul(result ^ char.charCodeAt(0), 16777619)
-    return (result >>> 0).toString(36)
-  }
-  return `${hash(2166136261).padStart(7, "0")}${hash(2246822519).padStart(7, "0")}`.slice(-9)
-}
-
-export const normalizer = (request: LLMRequest) => {
-  const ids = request.messages.flatMap((message) =>
-    message.content.flatMap((part) => (part.type === "tool-call" || part.type === "tool-result" ? [part.id] : [])),
-  )
-  // Reserve valid IDs before projecting any history, including IDs encountered later.
-  const used = new Set(ids.filter((id) => valid.test(id)))
-  const normalized = new Map<string, string>()
-  return (id: string) => {
-    if (valid.test(id)) return id
-    const previous = normalized.get(id)
-    if (previous) return previous
-    let attempt = 0
-    let candidate = hash(id)
-    while (used.has(candidate)) candidate = hash(`${id}:${++attempt}`)
-    used.add(candidate)
-    normalized.set(id, candidate)
-    return candidate
-  }
-}
-
-export * as MistralToolID from "./mistral-tool-id.js"
@@ -1,8 +1,12 @@
-import { Schema } from "effect"
-import { ReasoningEffort, ReasoningEfforts, type LLMRequest } from "../../schema/index.js"
-import { lenient } from "../shared.js"
+import { Option, Schema } from "effect"
+import type { LLMRequest } from "../../schema/index.js"

-export { ReasoningEffort, ReasoningEfforts }
+export const ReasoningEfforts = ["none", "minimal", "low", "medium", "high", "xhigh", "max"] as const
+export type ReasoningEffort = (typeof ReasoningEfforts)[number] | (string & {})
+export const ReasoningEffort = Schema.declare<ReasoningEffort>(
+  (value): value is ReasoningEffort => typeof value === "string",
+  { title: "ReasoningEffort" },
+)

 export const TextVerbosities = ["low", "medium", "high"] as const
 export type TextVerbosity = (typeof TextVerbosities)[number] | (string & {})
@@ -50,22 +54,21 @@ export const StreamOptions = Schema.Struct({
  includeObfuscation: Schema.optional(Schema.Boolean),
 })

-// Malformed options are dropped one at a time so a bad `topLogprobs` cannot discard `store` or `reasoningEffort`.
 export const Options = Schema.Struct({
-  store: lenient(Schema.Boolean),
-  metadata: lenient(Schema.Record(Schema.String, Schema.String)),
-  safetyIdentifier: lenient(Schema.String),
-  streamOptions: lenient(StreamOptions),
-  topLogprobs: lenient(Schema.Int.check(Schema.isBetween({ minimum: 0, maximum: 20 }))),
-  reasoningEffort: lenient(ReasoningEffort),
-  reasoningSummary: lenient(Schema.Literals(["auto", "concise", "detailed"])),
-  include: lenient(Schema.Array(ResponseIncludableSchema)),
-  textVerbosity: lenient(TextVerbositySchema),
-  serviceTier: lenient(ServiceTierSchema),
-  truncation: lenient(TruncationSchema),
-  allowedTools: lenient(AllowedTools),
-  maxToolCalls: lenient(Schema.Int),
-  parallelToolCalls: lenient(Schema.Boolean),
+  store: Schema.optional(Schema.Boolean),
+  metadata: Schema.optional(Schema.Record(Schema.String, Schema.String)),
+  safetyIdentifier: Schema.optional(Schema.String),
+  streamOptions: Schema.optional(StreamOptions),
+  topLogprobs: Schema.optional(Schema.Int.check(Schema.isBetween({ minimum: 0, maximum: 20 }))),
+  reasoningEffort: Schema.optional(ReasoningEffort),
+  reasoningSummary: Schema.optional(Schema.Literals(["auto", "concise", "detailed"])),
+  include: Schema.optional(Schema.Array(ResponseIncludableSchema)),
+  textVerbosity: Schema.optional(TextVerbositySchema),
+  serviceTier: Schema.optional(ServiceTierSchema),
+  truncation: Schema.optional(TruncationSchema),
+  allowedTools: Schema.optional(AllowedTools),
+  maxToolCalls: Schema.optional(Schema.Int),
+  parallelToolCalls: Schema.optional(Schema.Boolean),
 })
 export type Options = typeof Options.Type

@@ -73,10 +76,11 @@ export type Resolved = Omit<Options, "allowedTools"> & {
  readonly allowedTools?: AllowedTools & { readonly mode: NonNullable<AllowedTools["mode"]> }
 }

-const decodeOptions = Schema.decodeUnknownSync(Options)
+const decodeOptions = Schema.decodeUnknownOption(Options)

 export const resolve = (request: LLMRequest): Resolved => {
-  const input = decodeOptions(request.providerOptions ?? {})
+  const input = Option.getOrUndefined(decodeOptions(request.providerOptions))
+  if (!input) return {}
  return {
    ...input,
    include: input.include?.length ? input.include : undefined,
@@ -1,122 +0,0 @@
-import { Effect, Schema, Stream } from "effect"
-import { Route, type RouteBody, type TriggerCompactOperation } from "../../route/client.js"
-import { Protocol } from "../../route/protocol.js"
-import { CompactionCheckpointResponse, HttpOptions, LLMEvent, LLMRequest } from "../../schema/index.js"
-import { OpenResponses } from "../open-responses.js"
-import { ProviderShared } from "../shared.js"
-
-interface State {
-  readonly parser: Pick<OpenResponses.ParserState, "id" | "provider" | "outputItems">
-  readonly checkpoints: Readonly<Record<string, CompactionCheckpointResponse["checkpoint"]>>
-  readonly responseID?: string
-}
-
-const onOutputItem = Effect.fn("ResponsesCheckpoint.onOutputItem")(function* (
-  state: State,
-  input: OpenResponses.Event,
-) {
-  const event = OpenResponses.normalize(state.parser, input)
-  const item = event.item
-  if (!item) return state
-  const parser =
-    event.output_index === undefined || state.parser.outputItems[event.output_index] === item.id
-      ? state.parser
-      : { ...state.parser, outputItems: { ...state.parser.outputItems, [event.output_index]: item.id } }
-  const next = parser === state.parser ? state : { ...state, parser }
-  if (event.type === "response.output_item.added" || item.type !== "compaction") return next
-  if (
-    event.output_index !== undefined &&
-    Object.entries(state.parser.outputItems).some(
-      ([index, id]) => id === item.id && Number(index) !== event.output_index,
-    )
-  )
-    return yield* ProviderShared.eventError(parser.id, "Compaction checkpoint appeared in multiple output slots")
-  if (!item.encrypted_content)
-    return yield* ProviderShared.eventError(parser.id, "Compaction output is missing its encrypted content")
-  const previous = state.checkpoints[item.id]
-  if (previous && previous.encrypted !== item.encrypted_content)
-    return yield* ProviderShared.eventError(parser.id, "Compaction output changed after completion")
-  if (previous) return next
-  return {
-    ...next,
-    checkpoints: {
-      ...state.checkpoints,
-      [item.id]: { type: "compaction", provider: parser.provider, id: item.id, encrypted: item.encrypted_content },
-    },
-  } satisfies State
-})
-
-/** Collect a trigger response before acknowledging transport completion. No generation output escapes. */
-export const make = <Body>(body: RouteBody<Body>): TriggerCompactOperation =>
-  Effect.fn("ResponsesCheckpoint.execute")(function* (request, executor, options) {
-    const source = request.model.route
-    let result: CompactionCheckpointResponse | undefined
-    // Route registries erase the frame type. The codec validates that boundary before parsing.
-    const event: Schema.Codec<OpenResponses.Event, unknown> = OpenResponses.protocol.stream.event
-    const protocol = Protocol.make({
-      id: source.protocol,
-      body,
-      stream: {
-        event,
-        initial: (request: LLMRequest): State => ({
-          parser: { id: source.id, provider: request.model.provider, outputItems: {} },
-          checkpoints: {},
-        }),
-        terminal: OpenResponses.terminal,
-        step: Effect.fn("ResponsesCheckpoint.step")(function* (state: State, event: OpenResponses.Event) {
-          if (event.response?.id && state.responseID && event.response.id !== state.responseID)
-            return yield* ProviderShared.eventError(source.id, "Compaction response ID changed during execution")
-          if (event.type === "response.created") return [{ ...state, responseID: event.response?.id }, []] as const
-          if (event.type === "error" || event.type === "response.failed")
-            return yield* OpenResponses.providerFailure(event, "Compaction request failed")
-          if (event.type === "response.incomplete")
-            return yield* ProviderShared.eventError(source.id, "Compaction response was incomplete")
-          if (event.type === "response.output_item.added" || event.type === "response.output_item.done")
-            return [yield* onOutputItem(state, event), []] as const
-          if (event.type !== "response.completed") return [state, []] as const
-          const responseID = event.response?.id
-          if (!responseID?.trim())
-            return yield* ProviderShared.eventError(source.id, "Compaction response is missing its response ID")
-          if (event.response?.status !== undefined && event.response.status !== "completed")
-            return yield* ProviderShared.eventError(source.id, "Compaction response did not complete successfully")
-          let next = state
-          for (const [index, item] of (event.response?.output ?? []).entries()) {
-            next = yield* onOutputItem(next, { type: "response.output_item.done", output_index: index, item })
-          }
-          const checkpoints = Object.values(next.checkpoints)
-          const checkpoint = checkpoints[0]
-          if (checkpoints.length !== 1 || !checkpoint)
-            return yield* ProviderShared.eventError(
-              source.id,
-              "Compaction response must contain exactly one checkpoint",
-            )
-          result = new CompactionCheckpointResponse({
-            checkpoint,
-            responseID,
-            usage: OpenResponses.mapUsage(event.response?.usage, OpenResponses.metadataKey(request.model)),
-          })
-          return [next, [LLMEvent.finish({ reason: { normalized: "stop" } })]] as const
-        }),
-      },
-    })
-    const route = Route.make({
-      id: source.id,
-      provider: source.provider,
-      providerMetadataKey: source.providerMetadataKey,
-      protocol,
-      endpoint: source.endpoint,
-      auth: source.auth,
-      transport: source.transport,
-    })
-    const native = yield* body.from(request)
-    // The body builder already applied and validated overlays. Do not let transport reapply them.
-    const preparedRequest = LLMRequest.update(request, {
-      http: request.http === undefined ? undefined : new HttpOptions({ ...request.http, body: undefined }),
-    })
-    const prepared = yield* route.prepareTransport(native, preparedRequest, options)
-    yield* route.streamPrepared(prepared, preparedRequest, { http: executor }, options).pipe(Stream.runDrain)
-    if (!result) return yield* ProviderShared.eventError(source.id, "Compaction response ended without a checkpoint")
-    return result
-  })
-
-export * as ResponsesCheckpoint from "./responses-checkpoint.js"
@@ -1,179 +0,0 @@
-import { Effect, Schema, Stream } from "effect"
-import {
-  AIError,
-  InvalidProviderOutputError,
-  CompactionPart,
-  CompactionResponse,
-  HttpOptions,
-  LLMRequest,
-  Message,
-  type ContentPart,
-  mergeJsonRecords,
-} from "../../schema/index.js"
-import type { CompactOperation } from "../../route/client.js"
-import { stripEffortUpdates } from "../../effort-updates.js"
-import { Endpoint } from "../../route/endpoint.js"
-import { RequestExecutor } from "../../route/executor.js"
-import { HttpTransport } from "../../route/transport/index.js"
-import { OpenResponses } from "../open-responses.js"
-import { JsonObject, optionalNull, ProviderShared } from "../shared.js"
-import { Media } from "../../media.js"
-
-const Body = Schema.Struct({
-  model: Schema.String,
-  input: Schema.Array(Schema.Unknown),
-  instructions: optionalNull(Schema.String),
-  previous_response_id: optionalNull(Schema.String),
-  service_tier: optionalNull(Schema.String),
-  prompt_cache_key: optionalNull(Schema.String),
-  prompt_cache_retention: optionalNull(Schema.String),
-  prompt_cache_options: optionalNull(
-    Schema.Struct({ mode: Schema.optional(Schema.String), ttl: Schema.optional(Schema.String) }),
-  ),
-})
-
-const Text = Schema.Union([OpenResponses.OpenResponsesInputText, OpenResponses.OpenResponsesOutputText])
-const File = Schema.Union([
-  Schema.Struct({
-    ...OpenResponses.OpenResponsesInputFile.fields,
-    file_url: Schema.String,
-    file_data: Schema.optional(Schema.Never),
-  }),
-  Schema.Struct({
-    ...OpenResponses.OpenResponsesInputFile.fields,
-    file_data: Schema.String,
-    file_url: Schema.optional(Schema.Never),
-  }),
-])
-const MessageFields = {
-  type: Schema.Literal("message"),
-  id: Schema.optional(Schema.String),
-  status: Schema.optional(Schema.String),
-  phase: Schema.optional(OpenResponses.MessagePhase),
-}
-const Response = Schema.Struct({
-  object: Schema.Literal("response.compaction"),
-  output: Schema.Array(
-    Schema.Union([
-      OpenResponses.CompactionItem,
-      OpenResponses.OpenResponsesReasoningItem,
-      Schema.Struct({
-        ...MessageFields,
-        role: Schema.Literal("user"),
-        content: Schema.Array(Schema.Union([Text, OpenResponses.OpenResponsesInputImage, File])).check(
-          Schema.isMinLength(1),
-        ),
-      }),
-      Schema.Struct({
-        ...MessageFields,
-        role: Schema.Literal("assistant"),
-        content: Schema.Array(Text).check(Schema.isMinLength(1)),
-      }),
-    ]),
-  ),
-  usage: Schema.optional(Schema.StructWithRest(OpenResponses.OpenResponsesUsage, [JsonObject])),
-})
-
-export const make = (adapter: OpenResponses.ProviderAdapter): CompactOperation =>
-  Effect.fn("ResponsesCompaction.execute")(function* (request, executor, options) {
-    const route = request.model.route
-    // The standalone compaction endpoint rejects histories containing configuration updates.
-    const native = yield* OpenResponses.lowerConversation(stripEffortUpdates(request), adapter)
-    const body = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Body))(
-      mergeJsonRecords(
-        {
-          ...native,
-          service_tier: request.providerOptions?.serviceTier,
-          prompt_cache_key: ProviderShared.promptCacheKey(request),
-        },
-        request.http?.body,
-      ),
-    )
-    const url = Endpoint.render(route.endpoint, { request, body: native })
-    url.pathname = `${url.pathname.replace(/\/$/, "")}/compact`
-    const parts = yield* HttpTransport.jsonRequestParts({
-      request: LLMRequest.update(request, {
-        http: request.http === undefined ? undefined : new HttpOptions({ ...request.http, body: undefined }),
-      }),
-      body,
-      endpoint: Endpoint.path(url.toString()),
-      auth: route.auth,
-      encodeBody: Schema.encodeSync(Schema.fromJsonString(Body)),
-    })
-    const response = yield* executor.execute(
-      ProviderShared.jsonPost({ url: parts.url, body: parts.bodyText, headers: parts.headers }),
-      options?.http,
-    )
-    const text = yield* RequestExecutor.responseStream(response).pipe(
-      Stream.decodeText(),
-      Stream.runFold(
-        () => "",
-        (text, chunk) => text + chunk,
-      ),
-    )
-    const invalid = (message: string, cause?: unknown) =>
-      new AIError({
-        reason: new InvalidProviderOutputError({
-          route: route.id,
-          message,
-          body: text,
-          cause,
-          http: RequestExecutor.responseHttp(response),
-        }),
-      })
-    const result = yield* Schema.decodeUnknownEffect(Schema.fromJsonString(Response))(text).pipe(
-      Effect.mapError((cause) => invalid("Invalid compaction response", cause)),
-    )
-    if (!result.output.some((item) => item.type === "compaction"))
-      return yield* invalid("Compaction response did not contain a checkpoint")
-    return new CompactionResponse({
-      replacement: result.output.map((item) => toMessage(item, request.model)),
-      usage: OpenResponses.mapUsage(result.usage, OpenResponses.metadataKey(request.model)),
-    })
-  })
-
-function toMessage(item: (typeof Response.Type.output)[number], model: LLMRequest["model"]): Message {
-  if (item.type === "compaction")
-    return Message.assistant(
-      CompactionPart.make({ provider: model.provider, id: item.id ?? undefined, encrypted: item.encrypted_content }),
-    )
-
-  const key = OpenResponses.metadataKey(model)
-  if (item.type === "reasoning") {
-    const summary = item.summary.length ? item.summary : [{ text: "" }]
-    return Message.assistant(
-      summary.map((part) => ({
-        type: "reasoning" as const,
-        text: part.text,
-        providerMetadata: { [key]: { itemId: item.id, reasoningEncryptedContent: item.encrypted_content } },
-      })),
-    )
-  }
-
-  return Message.make({
-    role: item.role,
-    providerMetadata: { [key]: { itemId: item.id, type: item.type, status: item.status, phase: item.phase } },
-    content: item.content.map((part): ContentPart => {
-      if (part.type === "input_text" || part.type === "output_text") return { type: "text", text: part.text }
-      if (part.type === "input_image")
-        return {
-          type: "media",
-          media: replayMedia(part.image_url, "image/*"),
-          providerMetadata: part.detail === undefined ? undefined : { [key]: { detail: part.detail } },
-        }
-      return {
-        type: "media",
-        media: replayMedia(part.file_url === undefined ? part.file_data : part.file_url, "application/octet-stream"),
-        filename: part.filename,
-        providerMetadata: part.detail === undefined ? undefined : { [key]: { detail: part.detail } },
-      }
-    }),
-  })
-}
-
-/** Replayed compaction items carry either a data URL or a remote URL; the data URL's own type wins when present. */
-const replayMedia = (value: string, fallbackType: string) =>
-  Media.parseDataUrl(value) ??
-  (/^https?:\/\//.test(value) ? Media.url(value, { mediaType: fallbackType }) : Media.base64(value, fallbackType))
-
-export * as ResponsesCompaction from "./responses-compaction.js"
@@ -3,7 +3,8 @@ import { LLMEvent, type AIError, type ToolResultPart } from "../../schema/index.
 import { OpenResponses } from "../open-responses.js"
 import { Lifecycle } from "./lifecycle.js"

-export type Item = OpenResponses.OutputItem & {
+export type Item = OpenResponses.StreamItem & {
+  readonly id: string
  readonly status?: string
  readonly action?: unknown
  readonly queries?: unknown
@@ -26,8 +27,8 @@ export interface Definition {

 export type Definitions = Readonly<Record<string, Definition>>

-export const isItem = <Tools extends Definitions>(item: OpenResponses.OutputItem, tools: Tools): item is Item =>
-  item.type in tools
+export const isItem = <Tools extends Definitions>(item: OpenResponses.StreamItem, tools: Tools): item is Item =>
+  item.type in tools && typeof item.id === "string" && item.id.length > 0

 export const onDone: (
  state: OpenResponses.ParserState,
@@ -55,7 +55,6 @@ const inputStart = (tool: PendingTool) =>
  LLMEvent.toolInputStart({
    id: tool.id,
    name: tool.name,
-    namespace: tool.namespace,
    providerExecuted: tool.providerExecuted ? true : undefined,
    providerMetadata: tool.providerMetadata,
  })
@@ -64,7 +63,6 @@ const inputDelta = (tool: PendingTool, text: string) =>
  LLMEvent.toolInputDelta({
    id: tool.id,
    name: tool.name,
-    namespace: tool.namespace,
    text,
    input: Option.getOrElse(parsePartialInput(tool.input), () => ({})),
  })
@@ -87,7 +85,6 @@ const toolCall = (route: string, tool: PendingTool, inputOverride?: string) => {
        LLMEvent.toolCall({
          id: tool.id,
          name: tool.name,
-          namespace: tool.namespace,
          input,
          providerExecuted: tool.providerExecuted ? true : undefined,
          providerMetadata: tool.providerMetadata,
@@ -97,12 +94,7 @@ const toolCall = (route: string, tool: PendingTool, inputOverride?: string) => {
 }

 const finishEvents = (tool: PendingTool, event: ToolCall): ReadonlyArray<LLMEvent> => [
-  LLMEvent.toolInputEnd({
-    id: tool.id,
-    name: tool.name,
-    namespace: tool.namespace,
-    providerMetadata: tool.providerMetadata,
-  }),
+  LLMEvent.toolInputEnd({ id: tool.id, name: tool.name, providerMetadata: tool.providerMetadata }),
  event,
 ]

@@ -158,7 +150,6 @@ export const appendOrStart = <K extends StreamKey>(
  const tool = {
    id,
    name,
-    namespace: current?.namespace,
    input: `${current?.input ?? ""}${delta.text}`,
    providerExecuted: current?.providerExecuted,
    providerMetadata: current?.providerMetadata,
@@ -168,17 +159,6 @@ export const appendOrStart = <K extends StreamKey>(
  return appendTool(tools, key, tool, delta.text)
 }

-/**
- * Append argument text to a started tool. Returns `undefined` when no tool is
- * open under `key`, for protocols that ignore deltas without a matching block.
- */
-export const append = <K extends StreamKey>(tools: State<K>, key: K, text: string): AppendOutcome<K> | undefined => {
-  const current = tools[key]
-  if (!current) return undefined
-  if (text.length === 0) return { tools, tool: current, events: [] }
-  return appendTool(tools, key, { ...current, input: `${current.input}${text}` }, text)
-}
-
 /**
 * Append argument text to a tool that must already have been started. This keeps
 * protocols honest when their stream grammar promises a start event before any
@@ -190,7 +170,12 @@ export const appendExisting = <K extends StreamKey>(
  key: K,
  text: string,
  missingToolMessage: string,
-): AppendOutcome<K> | AIError => append(tools, key, text) ?? eventError(route, missingToolMessage)
+): AppendOutcome<K> | AIError => {
+  const current = tools[key]
+  if (!current) return eventError(route, missingToolMessage)
+  if (text.length === 0) return { tools, tool: current, events: [] }
+  return appendTool(tools, key, { ...current, input: `${current.input}${text}` }, text)
+}

 /**
 * Finalize one pending tool call: parse the accumulated raw JSON, remove it
@@ -1,38 +1,61 @@
-import { Effect, Schema } from "effect"
-import type { HttpClientResponse } from "effect/unstable/http"
-import { ImageModel, ImageResponse, type ImageRequestFor } from "../image.js"
-import { Media } from "../media.js"
-import { MediaProtocol } from "../route/media-protocol.js"
-import { MediaRoute } from "../route/media.js"
-import { ProviderID, mergeJsonRecords } from "../schema/index.js"
+import { Effect, Encoding, Schema } from "effect"
+import { Headers, HttpClientRequest } from "effect/unstable/http"
+import { GeneratedImage, ImageModel, ImageResponse, type ImageRequestFor, type ImageRoute } from "../image.js"
+import { Auth, type Definition as AuthDefinition } from "../route/auth.js"
+import { Usage, mergeHttpOptions, mergeJsonRecords, type HttpOptions } from "../schema/index.js"
 import { ProviderShared, optionalNull } from "./shared.js"
-import { MediaInput } from "./utils/media-input.js"
+import { ImageInputs } from "./utils/image-input.js"

 const ADAPTER = "xai-images"
-const NAME = "xAI Images"
-const PROVIDER = ProviderID.make("xai")
 export const DEFAULT_BASE_URL = "https://api.x.ai/v1"
 export const PATH = "/images/generations"
 export const EDIT_PATH = "/images/edits"

-// ---------------------------------------------------------------------------
-// 1. Public model input
-// ---------------------------------------------------------------------------
-
 export type XAIImageString<Known extends string> = Known | (string & {})

-/** Provider-native options. Common fields (`n`, `aspectRatio`, `images`) live on the request. */
 export type XAIImageOptions = {
+  readonly n?: number
+  readonly aspectRatio?: XAIImageString<
+    | "1:1"
+    | "3:4"
+    | "4:3"
+    | "9:16"
+    | "16:9"
+    | "2:3"
+    | "3:2"
+    | "9:19.5"
+    | "19.5:9"
+    | "9:20"
+    | "20:9"
+    | "1:2"
+    | "2:1"
+    | "auto"
+  >
+  readonly aspect_ratio?: XAIImageString<
+    | "1:1"
+    | "3:4"
+    | "4:3"
+    | "9:16"
+    | "16:9"
+    | "2:3"
+    | "3:2"
+    | "9:19.5"
+    | "19.5:9"
+    | "9:20"
+    | "20:9"
+    | "1:2"
+    | "2:1"
+    | "auto"
+  >
  readonly resolution?: XAIImageString<"1k" | "2k">
  readonly responseFormat?: XAIImageString<"url" | "b64_json">
  readonly response_format?: XAIImageString<"url" | "b64_json">
 } & Record<string, unknown>

-export type Request = ImageRequestFor<XAIImageOptions>
-
-// ---------------------------------------------------------------------------
-// 2. Response schema
-// ---------------------------------------------------------------------------
+type XAIImageBody = Record<string, unknown> & {
+  readonly model: string
+  readonly prompt: string
+}

 const XAIImageResponse = Schema.Struct({
  data: Schema.Array(
@@ -46,106 +69,120 @@ const XAIImageResponse = Schema.Struct({
  usage: Schema.optional(Schema.Unknown),
 })

-// ---------------------------------------------------------------------------
-// 5. Request body construction
-// ---------------------------------------------------------------------------
+export interface ModelInput {
+  readonly id: string
+  readonly auth: AuthDefinition
+  readonly baseURL?: string
+  readonly headers?: Record<string, string>
+  readonly http?: HttpOptions
+}

 const nativeOptions = (options: XAIImageOptions | undefined) => {
  if (!options) return undefined
-  const { responseFormat, ...native } = options
-  return { response_format: responseFormat, ...native }
+  const { aspectRatio, responseFormat, ...native } = options
+  return {
+    aspect_ratio: aspectRatio,
+    response_format: responseFormat,
+    ...native,
+  }
 }

-const isEdit = (request: Request) => (request.images?.length ?? 0) > 0
+const applyQuery = (url: string, query: Record<string, string> | undefined) => {
+  if (!query) return url
+  const next = new URL(url)
+  Object.entries(query).forEach(([key, value]) => next.searchParams.set(key, value))
+  return next.toString()
+}

-const reference = (asset: Media.Asset) =>
-  ProviderShared.mediaReference(asset, PROVIDER, NAME).pipe(
-    Effect.map((item) =>
-      item.type === "ref" ? { file_id: item.value } : { url: item.value, type: "image_url" as const },
-    ),
-  )
-
-const fromRequest = Effect.fn("XAIImages.fromRequest")(function* (request: Request) {
-  const references = yield* Effect.forEach(request.images ?? [], reference)
-  return MediaProtocol.json(
-    mergeJsonRecords(
-      {
-        model: request.model.id,
-        prompt: request.prompt,
-        // xAI takes one edit source as `image` and several as `images`.
-        image: references.length === 1 ? references[0] : undefined,
-        images: references.length > 1 ? references : undefined,
-        n: request.n,
-        aspect_ratio: request.aspectRatio,
-      },
-      nativeOptions(request.providerOptions),
-      request.http?.body,
-    ) ?? {},
-  )
-})
-
-// ---------------------------------------------------------------------------
-// 6. Response decoding
-// ---------------------------------------------------------------------------
-
-const decodeResponse = Effect.fn("XAIImages.decodeResponse")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-) {
-  const output = yield* MediaProtocol.decodeJson(ADAPTER, NAME, XAIImageResponse)(response)
-  const decoded = output.value
-  const images = yield* Effect.forEach(decoded.data, (item, index) => {
-    const providerMetadata =
-      item.revised_prompt === undefined || item.revised_prompt === null
-        ? undefined
-        : { xai: { revisedPrompt: item.revised_prompt } }
-    if (item.b64_json)
-      return MediaInput.decodedAsset(
-        output.invalid,
-        `${NAME} result ${index}`,
-        item.b64_json,
-        item.mime_type ?? undefined,
+export const model = (input: ModelInput) => {
+  const route: ImageRoute<XAIImageOptions> = {
+    id: ADAPTER,
+    generate: Effect.fn("XAIImages.generate")(function* (request: ImageRequestFor<XAIImageOptions>, execute) {
+      const http = mergeHttpOptions(request.model.http, request.http)
+      const imageReferences = (request.images ?? []).map((image) => {
+        if (image.type === "bytes") return { url: ImageInputs.dataUrl(image), type: "image_url" as const }
+        if (image.type === "url") return { url: image.url, type: "image_url" as const }
+        if (image.type === "file-id") return { file_id: image.id }
+        return undefined
+      })
+      if (imageReferences.some((image) => image === undefined))
+        return yield* ImageInputs.invalid("xAI Images accepts image URLs, data URLs, bytes, and file IDs")
+      const requestBody = mergeJsonRecords(
        {
-          providerMetadata,
+          model: request.model.id,
+          prompt: request.prompt,
+          image: imageReferences.length === 1 ? imageReferences[0] : undefined,
+          images: imageReferences.length > 1 ? imageReferences : undefined,
        },
+        nativeOptions(request.options),
+        http?.body,
+      ) as XAIImageBody
+      const text = ProviderShared.encodeJson(requestBody)
+      const url = applyQuery(
+        `${(input.baseURL ?? DEFAULT_BASE_URL).replace(/\/$/, "")}${imageReferences.length === 0 ? PATH : EDIT_PATH}`,
+        http?.query,
      )
-    if (item.url)
-      return Effect.succeed(Media.url(item.url, { mediaType: item.mime_type ?? undefined, providerMetadata }))
-    return Effect.fail(output.invalid(`${NAME} result ${index} has neither image data nor a URL`))
-  })
-  if (images.length === 0) return yield* output.invalid(`${NAME} returned no images`)
-  const usage = ProviderShared.isRecord(decoded.usage) ? decoded.usage : undefined
-  // xAI reports image counts rather than tokens, seconds, or credits; the raw record stays in provider metadata.
-  return new ImageResponse({
-    images,
-    providerMetadata: usage === undefined ? undefined : { xai: { usage } },
-  })
-})
-
-// ---------------------------------------------------------------------------
-// 7. Protocol and route
-// ---------------------------------------------------------------------------
-
-export const protocol = MediaProtocol.inline<Request, ImageResponse>({
-  id: ADAPTER,
-  name: NAME,
-  unsupported: ["mask", "size", "seed", "format"],
-  body: { from: fromRequest },
-  response: { decode: decodeResponse },
-})
-
-export const model = (input: MediaRoute.ModelInput) =>
-  ImageModel.fromRoute<XAIImageOptions>(
-    {
-      id: ADAPTER,
-      provider: PROVIDER,
-      protocol,
-      baseURL: DEFAULT_BASE_URL,
-      path: ({ request }) => (isEdit(request) ? EDIT_PATH : PATH),
-    },
-    input,
-  )
+      const headers = yield* Auth.toEffect(input.auth)({
+        request,
+        method: "POST",
+        url,
+        body: text,
+        headers: Headers.fromInput({ ...input.headers, ...http?.headers }),
+      })
+      const response = yield* execute(
+        HttpClientRequest.post(url).pipe(
+          HttpClientRequest.setHeaders(headers),
+          HttpClientRequest.bodyText(text, "application/json"),
+        ),
+      )
+      const output = yield* ProviderShared.imageResponse(ADAPTER, "xAI Images", response)
+      const decoded = yield* Schema.decodeUnknownEffect(Schema.fromJsonString(XAIImageResponse))(output.body).pipe(
+        Effect.mapError((cause) => output.invalid("xAI Images returned an invalid response", cause)),
+      )
+      const images = yield* Effect.forEach(decoded.data, (item, index) => {
+        const mediaType = item.mime_type ?? "application/octet-stream"
+        if (item.b64_json)
+          return Effect.fromResult(Encoding.decodeBase64(item.b64_json)).pipe(
+            Effect.mapError((cause) =>
+              output.invalid(`xAI Images result ${index} contains invalid base64 data`, cause),
+            ),
+            Effect.map(
+              (data) =>
+                new GeneratedImage({
+                  mediaType,
+                  data,
+                  providerMetadata:
+                    item.revised_prompt === undefined || item.revised_prompt === null
+                      ? undefined
+                      : { xai: { revisedPrompt: item.revised_prompt } },
+                }),
+            ),
+          )
+        if (item.url)
+          return Effect.succeed(
+            new GeneratedImage({
+              mediaType,
+              data: item.url,
+              providerMetadata:
+                item.revised_prompt === undefined || item.revised_prompt === null
+                  ? undefined
+                  : { xai: { revisedPrompt: item.revised_prompt } },
+            }),
+          )
+        return Effect.fail(output.invalid(`xAI Images result ${index} has neither image data nor a URL`))
+      })
+      if (images.length === 0) return yield* output.invalid("xAI Images returned no images")
+      const usage = ProviderShared.isRecord(decoded.usage) ? decoded.usage : undefined
+      return new ImageResponse({
+        images,
+        usage: usage === undefined ? undefined : new Usage({ providerMetadata: { xai: usage } }),
+        providerMetadata: usage === undefined ? undefined : { xai: { usage } },
+      })
+    }),
+  }
+  return ImageModel.make<XAIImageOptions>({ id: input.id, provider: "xai", route, http: input.http })
+}

 export const XAIImages = {
-  protocol,
  model,
 } as const
@@ -4,7 +4,6 @@ import type { LLMRequest } from "../schema/index.js"
 import { OpenResponses } from "./open-responses.js"
 import { JsonObject, optionalNull, ProviderShared } from "./shared.js"
 import { ResponsesHostedTools } from "./utils/responses-hosted-tools.js"
-import { ResponsesCompaction } from "./utils/responses-compaction.js"

 const ADAPTER = "xai-responses"
 const NAME = "xAI Responses"
@@ -37,22 +36,15 @@ const XAIResponsesBody = Schema.Struct({
  stream: Schema.Literal(true),
 })

-const adapter = {
+const extension = {
  id: ADAPTER,
  name: NAME,
-  restoreHostedToolItem: (item: unknown) => (Schema.is(XAIResponsesHostedToolItem)(item) ? item : undefined),
-} satisfies OpenResponses.ProviderAdapter
+  lowerHostedToolItem: (item: unknown) => (Schema.is(XAIResponsesHostedToolItem)(item) ? item : undefined),
+} satisfies OpenResponses.Extension

 const decodeBody = ProviderShared.validateWith(Schema.decodeUnknownEffect(XAIResponsesBody))
 const fromRequest = Effect.fn("XAIResponses.fromRequest")(function* (request: LLMRequest) {
-  if (request.providerOptions?.contextManagement !== undefined)
-    return yield* ProviderShared.unsupportedOperation({
-      operation: "in-band-compaction",
-      provider: request.model.provider,
-      route: request.model.route.id,
-      message: "xAI requires explicit compaction through LLMClient.compact; automatic context management is not supported",
-    })
-  return yield* decodeBody(yield* OpenResponses.fromRequestWithAdapter(request, adapter))
+  return yield* decodeBody(yield* OpenResponses.fromRequestWithExtension(request, extension))
 })

 const HOSTED_TOOLS = {
@@ -72,8 +64,7 @@ const HOSTED_TOOLS = {

 // Grok speaks the standard Responses reasoning dialect (`reasoning_summary_text.*`,
 // handled by the baseline); only its hosted tool vocabulary differs.
-const step = (state: OpenResponses.ParserState, input: OpenResponses.Event) => {
-  const event = OpenResponses.normalize(state, input)
+const step = (state: OpenResponses.ParserState, event: OpenResponses.Event) => {
  if (event.type === "response.output_item.done" && event.item && ResponsesHostedTools.isItem(event.item, HOSTED_TOOLS))
    return ResponsesHostedTools.onDone(state, event.item, HOSTED_TOOLS)
  return OpenResponses.step(state, event)
@@ -87,12 +78,10 @@ export const protocol = Protocol.make({
  },
  stream: {
    event: OpenResponses.protocol.stream.event,
-    initial: (request) => OpenResponses.initial(request, adapter),
+    initial: (request) => OpenResponses.initial(request, extension),
    step,
    terminal: OpenResponses.terminal,
  },
 })

-export const compact = ResponsesCompaction.make(adapter)
-
 export * as XAIResponses from "./xai-responses.js"
@@ -1,211 +0,0 @@
-import { Effect, Schema } from "effect"
-import type { HttpClientResponse } from "effect/unstable/http"
-import type { Status } from "../generation.js"
-import { Media } from "../media.js"
-import { MediaProtocol } from "../route/media-protocol.js"
-import { MediaRoute } from "../route/media.js"
-import { ProviderID, mergeJsonRecords } from "../schema/index.js"
-import { VideoModel, VideoResponse, type VideoRequestFor } from "../video.js"
-import { ProviderShared, optionalNull } from "./shared.js"
-
-const ADAPTER = "xai-video"
-const NAME = "xAI Video"
-const PROVIDER = ProviderID.make("xai")
-export const DEFAULT_BASE_URL = "https://api.x.ai/v1"
-export const PATH = "/videos/generations"
-export const EDIT_PATH = "/videos/edits"
-export const EXTEND_PATH = "/videos/extensions"
-export const STATUS_PATH = "/videos"
-
-// ---------------------------------------------------------------------------
-// 1. Public model input
-// ---------------------------------------------------------------------------
-
-/**
- * Provider-native options. Common fields (`frames`, `references`, `video`, `durationSeconds`, `aspectRatio`,
- * `resolution`, `audio`) live on the request. `mode` selects the endpoint a `video` input is sent to.
- */
-export type XAIVideoOptions = {
-  readonly mode?: "edit" | "extend"
-  readonly reference_audios?: ReadonlyArray<{ readonly voice_id: string }>
-} & Record<string, unknown>
-
-export type Request = VideoRequestFor<XAIVideoOptions>
-
-// ---------------------------------------------------------------------------
-// 2. Token and response schemas
-// ---------------------------------------------------------------------------
-
-export const Token = Schema.Struct({ requestID: Schema.String })
-export type Token = Schema.Schema.Type<typeof Token>
-
-const StartResponse = Schema.Struct({ request_id: Schema.String })
-
-const VideoStatus = Schema.Struct({
-  status: Schema.String,
-  progress: optionalNull(Schema.Number),
-  video: optionalNull(
-    Schema.Struct({
-      url: optionalNull(Schema.String),
-      duration: optionalNull(Schema.Number),
-      respect_moderation: optionalNull(Schema.Boolean),
-    }),
-  ),
-  error: optionalNull(
-    Schema.Struct({
-      code: optionalNull(Schema.String),
-      message: optionalNull(Schema.String),
-    }),
-  ),
-  model: optionalNull(Schema.String),
-})
-
-const STATUS = {
-  pending: "running",
-  done: "completed",
-  failed: "failed",
-  expired: "expired",
-} as const satisfies Record<string, Status>
-
-// ---------------------------------------------------------------------------
-// 5. Request body construction
-// ---------------------------------------------------------------------------
-
-const mediaInput = (asset: Media.Asset) =>
-  ProviderShared.mediaReference(asset, PROVIDER, NAME).pipe(
-    Effect.map((reference) => (reference.type === "ref" ? { file_id: reference.value } : { url: reference.value })),
-  )
-
-const nativeOptions = (options: XAIVideoOptions | undefined) => {
-  if (!options) return undefined
-  const { mode: _mode, ...native } = options
-  return native
-}
-
-const fromRequest = Effect.fn("XAIVideo.fromRequest")(function* (request: Request) {
-  const image = request.frames?.first === undefined ? undefined : yield* mediaInput(request.frames.first)
-  const lastFrame = request.frames?.last === undefined ? undefined : yield* mediaInput(request.frames.last)
-  const video = request.video === undefined ? undefined : yield* mediaInput(request.video)
-  const references = yield* Effect.forEach(request.references ?? [], mediaInput)
-  return MediaProtocol.json(
-    mergeJsonRecords(
-      {
-        model: request.model.id,
-        prompt: request.prompt,
-        image,
-        last_frame: lastFrame,
-        reference_images: references.length === 0 ? undefined : references,
-        video,
-        duration: request.durationSeconds,
-        aspect_ratio: request.aspectRatio,
-        resolution: request.resolution,
-        generate_audio: request.audio,
-      },
-      nativeOptions(request.providerOptions),
-      request.http?.body,
-    ) ?? {},
-  )
-})
-
-// ---------------------------------------------------------------------------
-// 6. Response decoding
-// ---------------------------------------------------------------------------
-
-const decodeStart = MediaProtocol.decodeStarted(ADAPTER, NAME, StartResponse, (value) => ({
-  token: { requestID: value.request_id },
-  snapshot: { id: value.request_id, status: "running" },
-}))
-
-// `progress` is undocumented but observed live as a 0..100 percentage (recorded cassette: 1 → 10 → 37 → 100).
-const fraction = (progress: number | null | undefined) =>
-  progress !== undefined && progress !== null && progress >= 0 && progress <= 100 ? progress / 100 : undefined
-
-const decodeVideoStatus = MediaProtocol.decodeJson(ADAPTER, NAME, VideoStatus)
-
-const decodeStatus = Effect.fn("XAIVideo.decodeStatus")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-  context: MediaProtocol.PollContext<Token>,
-) {
-  const output = yield* decodeVideoStatus(response)
-  const status = yield* MediaProtocol.status(STATUS, output.value.status, output)
-  return { id: context.token.requestID, status, progress: fraction(output.value.progress) }
-})
-
-const decodeResult = Effect.fn("XAIVideo.decodeResult")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-  context: MediaProtocol.PollContext<Token>,
-) {
-  const output = yield* decodeVideoStatus(response)
-  const decoded = output.value
-  const status = yield* MediaProtocol.status(STATUS, decoded.status, output)
-  if (status === "running") return yield* output.invalid(`${NAME} request ${context.token.requestID} has not finished`)
-  if (status === "failed") {
-    const code = decoded.error?.code ?? undefined
-    const message = decoded.error?.message ?? undefined
-    return yield* output.ended(
-      "failed",
-      `${NAME} generation failed${code === undefined ? "" : ` (${code})`}${message === undefined ? "" : `: ${message}`}`,
-    )
-  }
-  if (status !== "completed")
-    return yield* output.ended("expired", `${NAME} request ${context.token.requestID} expired`)
-  // `respect_moderation: false` marks a filtered result; a URL may still be present, so report it as a notice.
-  const notices =
-    decoded.video?.respect_moderation === false
-      ? [{ type: "moderated" as const, message: `${NAME} flagged the generated video for moderation` }]
-      : undefined
-  const url = decoded.video?.url ?? undefined
-  if (url === undefined && notices !== undefined)
-    return yield* output.contentPolicy(`${NAME} withheld the video for moderation`)
-  if (url === undefined) return yield* output.invalid(`${NAME} completed without a video URL`)
-  const duration = decoded.video?.duration ?? undefined
-  return new VideoResponse({
-    videos: [
-      Media.url(url, {
-        mediaType: "video/mp4",
-        info: duration === undefined ? undefined : { durationSeconds: duration },
-      }),
-    ],
-    notices,
-    providerMetadata: { xai: { requestId: context.token.requestID, model: decoded.model ?? undefined } },
-  })
-})
-
-// ---------------------------------------------------------------------------
-// 7. Protocol and route
-// ---------------------------------------------------------------------------
-
-const statusPath = (token: Token) => `${STATUS_PATH}/${token.requestID}`
-
-export const protocol = MediaProtocol.queued<Request, VideoResponse, Token>({
-  id: ADAPTER,
-  name: NAME,
-  token: Token,
-  unsupported: ["n", "seed", "negativePrompt"],
-  start: { body: { from: fromRequest }, decode: decodeStart },
-  status: { path: statusPath, decode: decodeStatus },
-  result: { path: statusPath, decode: decodeResult },
-})
-
-// A source video goes to `/videos/edits` unless `providerOptions.mode` asks for an extension.
-const startPath = (request: Request) => {
-  if (request.video === undefined) return PATH
-  return request.providerOptions?.mode === "extend" ? EXTEND_PATH : EDIT_PATH
-}
-
-export const model = (input: MediaRoute.ModelInput) =>
-  VideoModel.fromRoute<XAIVideoOptions, Token>(
-    {
-      id: ADAPTER,
-      provider: PROVIDER,
-      protocol,
-      baseURL: DEFAULT_BASE_URL,
-      path: ({ request }) => startPath(request),
-    },
-    input,
-  )
-
-export const XAIVideo = {
-  protocol,
-  model,
-} as const
@@ -1,75 +0,0 @@
-import { Effect, Schema } from "effect"
-import { Protocol } from "../route/protocol.js"
-import type { LanguageModelCompatibility, LLMRequest } from "../schema/index.js"
-import { OpenAIChat } from "./openai-chat.js"
-import { ProviderShared } from "./shared.js"
-
-export type ReasoningEffort = "none" | "minimal" | "low" | "medium" | "high" | "xhigh" | "max" | (string & {})
-
-export type OptionsInput = {
-  readonly reasoningEffort?: ReasoningEffort
-  readonly thinking?: {
-    readonly type?: "enabled" | "disabled" | (string & {})
-    /** False retains historical reasoning; omission preserves the endpoint's default. */
-    readonly clear_thinking?: boolean
-  }
-  readonly toolStream?: boolean
-  readonly doSample?: boolean
-  readonly responseFormat?: { readonly type: "text" | "json_object" | (string & {}) }
-  readonly requestID?: string
-  readonly userID?: string
-}
-
-const Options = Schema.Struct({
-  reasoningEffort: Schema.optional(Schema.String),
-  thinking: Schema.optional(
-    Schema.Struct({ type: Schema.optional(Schema.String), clear_thinking: Schema.optional(Schema.Boolean) }),
-  ),
-  toolStream: Schema.optional(Schema.Boolean),
-  doSample: Schema.optional(Schema.Boolean),
-  responseFormat: Schema.optional(Schema.Struct({ type: Schema.String })),
-  requestID: Schema.optional(Schema.String),
-  userID: Schema.optional(Schema.String),
-})
-
-const Body = Schema.Struct({
-  ...OpenAIChat.bodyFields,
-  thinking: Options.fields.thinking,
-  do_sample: Options.fields.doSample,
-  response_format: Options.fields.responseFormat,
-  request_id: Options.fields.requestID,
-  user_id: Options.fields.userID,
-})
-
-const fromRequest = Effect.fn("ZAIChat.fromRequest")(function* (request: LLMRequest) {
-  const options = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))(request.providerOptions ?? {})
-  const body = yield* OpenAIChat.protocol.body.from(request)
-  return {
-    ...body,
-    thinking: options.thinking,
-    // Tool streaming was introduced in GLM-4.6; older models must not receive the opt-in.
-    tool_stream:
-      options.toolStream ??
-      (body.tools?.length && /^glm-(?:4\.[67]|5(?:[.-]|$))/i.test(request.model.id) ? true : undefined),
-    do_sample: options.doSample,
-    response_format: options.responseFormat,
-    request_id: options.requestID,
-    user_id: options.userID,
-  }
-})
-
-export const compatibility = {
-  maxTokensField: "max_tokens",
-  supportsStore: false,
-  supportsStrictMode: false,
-  reasoningField: "reasoning_content",
-  zaiToolStream: false,
-} satisfies LanguageModelCompatibility
-
-export const protocol = Protocol.make({
-  id: "zai-chat",
-  body: { schema: Body, from: fromRequest },
-  stream: OpenAIChat.protocol.stream,
-})
-
-export * as ZAIChat from "./zai-chat.js"
@@ -1,34 +1,29 @@
 import { Effect, Schema } from "effect"
-import type { HttpClientResponse } from "effect/unstable/http"
-import { ImageModel, ImageResponse, type ImageRequestFor } from "../image.js"
-import { Media } from "../media.js"
-import { MediaProtocol } from "../route/media-protocol.js"
-import { MediaRoute } from "../route/media.js"
-import { ProviderID, mergeJsonRecords } from "../schema/index.js"
+import { Headers, HttpClientRequest } from "effect/unstable/http"
+import { GeneratedImage, ImageModel, ImageResponse, type ImageRequestFor, type ImageRoute } from "../image.js"
+import { Auth, type Definition as AuthDefinition } from "../route/auth.js"
+import { mergeHttpOptions, mergeJsonRecords, type HttpOptions } from "../schema/index.js"
+import { ProviderShared } from "./shared.js"
+import { ImageInputs } from "./utils/image-input.js"

 const ADAPTER = "zai-images"
-const NAME = "Z.ai Images"
-const PROVIDER = ProviderID.make("zai")
 export const DEFAULT_BASE_URL = "https://api.z.ai/api/paas/v4"
 export const PATH = "/images/generations"

-// ---------------------------------------------------------------------------
-// 1. Public model input
-// ---------------------------------------------------------------------------
-
 export type ZAIImageString<Known extends string> = Known | (string & {})

-/** Provider-native options. The common `size` field lives on the request. */
 export type ZAIImageOptions = {
+  readonly size?: ZAIImageString<
+    "1024x1024" | "768x1344" | "864x1152" | "1344x768" | "1152x864" | "1440x720" | "720x1440"
+  >
  readonly quality?: ZAIImageString<"hd" | "standard">
  readonly userID?: string
 } & Record<string, unknown>

-export type Request = ImageRequestFor<ZAIImageOptions>
-
-// ---------------------------------------------------------------------------
-// 2. Response schema
-// ---------------------------------------------------------------------------
+type ZAIImageBody = Record<string, unknown> & {
+  readonly model: string
+  readonly prompt: string
+}

 const ZAIImageResponse = Schema.Struct({
  created: Schema.optional(Schema.Int),
@@ -45,81 +40,84 @@ const ZAIImageResponse = Schema.Struct({
  ),
 })

-// ---------------------------------------------------------------------------
-// 5. Request body construction
-// ---------------------------------------------------------------------------
+export interface ModelInput {
+  readonly id: string
+  readonly auth: AuthDefinition
+  readonly baseURL?: string
+  readonly headers?: Record<string, string>
+  readonly http?: HttpOptions
+}

 const nativeOptions = (options: ZAIImageOptions | undefined) => {
  if (!options) return undefined
  const { userID, ...native } = options
-  return { user_id: userID, ...native }
+  return {
+    user_id: userID,
+    ...native,
+  }
 }

-const fromRequest = Effect.fn("ZAIImages.fromRequest")(function* (request: Request) {
-  return MediaProtocol.json(
-    mergeJsonRecords(
-      { model: request.model.id, prompt: request.prompt, size: request.size },
-      nativeOptions(request.providerOptions),
-      request.http?.body,
-    ) ?? {},
-  )
-})
+const applyQuery = (url: string, query: Record<string, string> | undefined) => {
+  if (!query) return url
+  const next = new URL(url)
+  Object.entries(query).forEach(([key, value]) => next.searchParams.set(key, value))
+  return next.toString()
+}

-// ---------------------------------------------------------------------------
-// 6. Response decoding
-// ---------------------------------------------------------------------------
-
-const decodeResponse = Effect.fn("ZAIImages.decodeResponse")(function* (
-  response: HttpClientResponse.HttpClientResponse,
-) {
-  const output = yield* MediaProtocol.decodeJson(ADAPTER, NAME, ZAIImageResponse)(response)
-  const decoded = output.value
-  if (decoded.data.length === 0) return yield* output.invalid(`${NAME} returned no images`)
-  const filters = decoded.content_filter ?? []
-  return new ImageResponse({
-    // Z.ai returns only URLs and no content type; the media type resolves when the asset is materialized.
-    images: decoded.data.map((item) => Media.url(item.url)),
-    // Z.ai reports applied content filters alongside a successful result; surface them instead of dropping them.
-    notices:
-      filters.length === 0
-        ? undefined
-        : filters.map((filter) => ({
-            type: "moderated" as const,
-            message: `${NAME} applied a content filter${filter.role === undefined ? "" : ` for ${filter.role}`}${
-              filter.level === undefined ? "" : ` at level ${filter.level}`
-            }`,
-            providerMetadata: { zai: filter },
-          })),
-    providerMetadata: {
-      zai: {
-        created: decoded.created,
-        id: decoded.id,
-        requestID: decoded.request_id,
-        contentFilter: decoded.content_filter,
-      },
-    },
-  })
-})
-
-// ---------------------------------------------------------------------------
-// 7. Protocol and route
-// ---------------------------------------------------------------------------
-
-export const protocol = MediaProtocol.inline<Request, ImageResponse>({
-  id: ADAPTER,
-  name: NAME,
-  unsupported: ["images", "mask", "n", "aspectRatio", "seed", "format"],
-  body: { from: fromRequest },
-  response: { decode: decodeResponse },
-})
-
-export const model = (input: MediaRoute.ModelInput) =>
-  ImageModel.fromRoute<ZAIImageOptions>(
-    { id: ADAPTER, provider: PROVIDER, protocol, baseURL: DEFAULT_BASE_URL, path: PATH },
-    input,
-  )
+export const model = (input: ModelInput) => {
+  const route: ImageRoute<ZAIImageOptions> = {
+    id: ADAPTER,
+    generate: Effect.fn("ZAIImages.generate")(function* (request: ImageRequestFor<ZAIImageOptions>, execute) {
+      if ((request.images?.length ?? 0) > 0)
+        return yield* ImageInputs.invalid("Z.ai hosted image generation does not support image inputs")
+      const http = mergeHttpOptions(request.model.http, request.http)
+      const requestBody = mergeJsonRecords(
+        { model: request.model.id, prompt: request.prompt },
+        nativeOptions(request.options),
+        http?.body,
+      ) as ZAIImageBody
+      const text = ProviderShared.encodeJson(requestBody)
+      const url = applyQuery(`${(input.baseURL ?? DEFAULT_BASE_URL).replace(/\/$/, "")}${PATH}`, http?.query)
+      const headers = yield* Auth.toEffect(input.auth)({
+        request,
+        method: "POST",
+        url,
+        body: text,
+        headers: Headers.fromInput({ ...input.headers, ...http?.headers }),
+      })
+      const response = yield* execute(
+        HttpClientRequest.post(url).pipe(
+          HttpClientRequest.setHeaders(headers),
+          HttpClientRequest.bodyText(text, "application/json"),
+        ),
+      )
+      const output = yield* ProviderShared.imageResponse(ADAPTER, "Z.ai Images", response)
+      const decoded = yield* Schema.decodeUnknownEffect(Schema.fromJsonString(ZAIImageResponse))(output.body).pipe(
+        Effect.mapError((cause) => output.invalid("Z.ai Images returned an invalid response", cause)),
+      )
+      if (decoded.data.length === 0) return yield* output.invalid("Z.ai Images returned no images")
+      return new ImageResponse({
+        images: decoded.data.map(
+          (item) =>
+            new GeneratedImage({
+              mediaType: "application/octet-stream",
+              data: item.url,
+            }),
+        ),
+        providerMetadata: {
+          zai: {
+            created: decoded.created,
+            id: decoded.id,
+            requestID: decoded.request_id,
+            contentFilter: decoded.content_filter,
+          },
+        },
+      })
+    }),
+  }
+  return ImageModel.make<ZAIImageOptions>({ id: input.id, provider: "zai", route, http: input.http })
+}

 export const ZAIImages = {
-  protocol,
  model,
 } as const
@@ -1,39 +0,0 @@
-import { Effect, Schema } from "effect"
-import { Protocol } from "../route/protocol.js"
-import { LLMRequest } from "../schema/index.js"
-import { AnthropicMessages } from "./anthropic-messages.js"
-import { ProviderShared } from "./shared.js"
-import type { ZAIChat } from "./zai-chat.js"
-
-export type OptionsInput = {
-  readonly effort?: ZAIChat.ReasoningEffort
-  readonly thinking?: { readonly type: "enabled" | "adaptive" | "disabled" | (string & {}) }
-}
-
-const Options = Schema.Struct({
-  effort: Schema.optional(Schema.String),
-  thinking: Schema.optional(Schema.Struct({ type: Schema.String })),
-})
-const Body = Schema.Struct({
-  ...AnthropicMessages.AnthropicMessagesBody.fields,
-  thinking: Options.fields.thinking,
-})
-
-const fromRequest = Effect.fn("ZAIMessages.fromRequest")(function* (request: LLMRequest) {
-  const options = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))(request.providerOptions ?? {})
-  // Z.AI accepts enabled thinking without Anthropic's mandatory token budget.
-  const body = yield* AnthropicMessages.protocol.body.from(
-    LLMRequest.update(request, {
-      providerOptions: { ...request.providerOptions, thinking: undefined },
-    }),
-  )
-  return { ...body, thinking: options.thinking }
-})
-
-export const protocol = Protocol.make({
-  id: "zai-messages",
-  body: { schema: Body, from: fromRequest },
-  stream: AnthropicMessages.protocol.stream,
-})
-
-export * as ZAIMessages from "./zai-messages.js"
@@ -37,7 +37,6 @@ const patterns = [
  /too large for model with \d+ maximum context length/i,
  /prompt has [\d,]+ tokens?, but the configured context size is [\d,]+ tokens?/i,
  /model_context_window_exceeded/i,
-  /range of input length should be/i,
  /too many tokens/i,
  /token limit exceeded/i,
  /request_too_large/i,
@@ -59,16 +58,7 @@ export const isContextOverflowFailure = (failure: unknown) =>
    : Schema.is(ProviderErrorEvent)(failure) && failure.classification === "context-overflow"

 const decodeJson = Schema.decodeUnknownOption(Schema.fromJsonString(Schema.Unknown))
-// OpenCode Zen reports account caps as typed 429/402 errors that are not throttles.
-const QUOTA_CODES = new Set([
-  "insufficient_quota",
-  "usage_not_included",
-  "billing_error",
-  "gousagelimiterror",
-  "freeusagelimiterror",
-  "creditlimitexceeded",
-])
-const AUTH_CODES = new Set(["authentication_error", "permission_error"])
+const QUOTA_CODES = new Set(["insufficient_quota", "usage_not_included", "billing_error"])
 const SERVER_CODES = new Set([
  "api_error",
  "internal_error",
@@ -81,30 +71,10 @@ const SERVER_CODES = new Set([
  "serviceunavailableexception",
 ])
 const INVALID_REQUEST_CODES = new Set(["invalid_prompt", "invalid_request_error", "validationexception"])
-// Azure OpenAI reports `content_filter` with `innererror.code` ResponsibleAIPolicyViolation.
-// OpenRouter tags provider failures with a typed `error_type`; its Responses skin also
-// emits `image_content_policy_violation` as the native code.
-const CONTENT_POLICY_CODES = new Set([
-  "content_filter",
-  "responsibleaipolicyviolation",
-  "content_policy_violation",
-  "image_content_policy_violation",
-  "refusal",
-])
-// OpenCode Zen replaces upstream codes outside its allow-list but keeps the original
-// as a `[code]` label at the start of the rewritten message.
-const GATEWAY_CODE_LABEL = /^[^:\n]+: \[([A-Za-z0-9_.-]+)\]/
 const RATE_LIMIT_TEXT = /rate increased too quickly|rate[-_\s]?limit|too[_\s]?many[_\s]?requests/i
-// Only consulted on 429, where throttles and account caps share a status.
-const QUOTA_TEXT = /insufficient[-_\s]?quota|quota[-_\s]?exceeded|budget exceeded|usage limit/i
-// Policy rejections without a dedicated code, matched against the provider's own
-// explanation only. OpenAI reuses `invalid_prompt` for usage-policy rejections while
-// Bedrock Mantle reuses it for schema validation; Anthropic reports blocked output
-// under `invalid_request_error`.
-const CONTENT_POLICY_TEXT =
-  /violating our usage policy|blocked by content filtering policy|content[-_\s]?policy|rejected as a result of our safety system/i
-const SERVER_ERROR_TEXT =
-  /\b(?:try again|(?:please |you can )?retry (?:the |this |your )?request|try (?:the |this |your )?request again|(?:currently |temporarily )?at capacity|overloaded|temporarily unavailable|service[-_\s]?unavailable|(?:server|internal)[-_\s]?error|server (?:is )?busy|provider returned (?:an )?error|resource[-_\s]?exhausted|upstream (?:connect|connection|request)|request buffer limit while retrying upstream)\b/i
+const QUOTA_TEXT = /insufficient[-_\s]?quota|quota[-_\s]?exceeded/i
+const CONTENT_POLICY_TEXT = /content[-_\s]?policy|content_filter|safety/i
+const NETWORK_ERROR_TEXT = /network[-_\s]error/i

 export interface ProviderFailure {
  readonly message: string
@@ -120,21 +90,14 @@ export interface ProviderFailure {
  readonly rateLimit?: HttpRateLimitDetails | undefined
 }

-// Classification records affirmative evidence about a failure. Deterministic
-// failures need positive identification (a 4xx status, quota/auth/policy
-// signals); anything unrecognized stays UnknownProvider, which the session
-// retry policy treats as retry-eligible because transient failures arrive in
-// unpredictable shapes while deterministic rejections almost always carry a
-// status or known code.
+// Keep HTTP failures and provider-reported stream failures on one typed path so
+// session retry policy never needs provider-specific string matching.
 export function classifyProviderFailure(input: ProviderFailure): AIError["reason"] {
  const details = { message: input.message, body: input.rawBody, http: input.http, cause: input.cause }
  const body = input.rawBody ?? ""
-  const codes = [
-    ...providerCodes(input.data),
-    ...providerCodes(body),
-    ...providerCodes(input.message),
-    ...(GATEWAY_CODE_LABEL.exec(input.message)?.slice(1) ?? []),
-  ].map((code) => code.toLowerCase())
+  const codes = [...providerCodes(input.data), ...providerCodes(body), ...providerCodes(input.message)].map((code) =>
+    code.toLowerCase(),
+  )
  // Scan the raw payload too so signals missing from the summary message
  // (e.g. overflow phrases nested in a JSON error body) still classify.
  const text = [input.message, body].filter((value) => value.length > 0).join("\n")
@@ -150,46 +113,49 @@ export function classifyProviderFailure(input: ProviderFailure): AIError["reason
    return new InvalidRequestError({ ...details, classification: "context-overflow" })
  if (input.status === 413 || isPayloadTooLarge(text))
    return new InvalidRequestError({ ...details, classification: "payload-too-large" })
-  if (codes.some((code) => CONTENT_POLICY_CODES.has(code)) || (clientScoped && CONTENT_POLICY_TEXT.test(input.message)))
-    return new ContentPolicyError(details)
-  if (
-    input.status === 402 ||
-    codes.some((code) => QUOTA_CODES.has(code)) ||
-    (input.status === 429 && QUOTA_TEXT.test(text))
-  )
+  if (CONTENT_POLICY_TEXT.test(text)) return new ContentPolicyError(details)
+  if (codes.some((code) => QUOTA_CODES.has(code)) || (input.status === 429 && QUOTA_TEXT.test(text)))
    return new QuotaExceededError(details)
-  if (input.status === 401 || input.status === 403 || codes.some((code) => AUTH_CODES.has(code)))
-    return new AuthenticationError(details)
+  if (input.status === 401) return new AuthenticationError({ ...details, kind: "invalid" })
+  if (input.status === 403) return new AuthenticationError({ ...details, kind: "insufficient-permissions" })
+  if (codes.includes("authentication_error")) return new AuthenticationError({ ...details, kind: "invalid" })
+  if (codes.includes("permission_error"))
+    return new AuthenticationError({ ...details, kind: "insufficient-permissions" })
  if (
-    input.status === 429 ||
-    codes.some(
-      (code) => code.includes("rate_limit") || code === "too_many_requests" || code === "throttlingexception",
-    ) ||
-    RATE_LIMIT_TEXT.test(text)
+    codes.some((code) => code.includes("rate_limit") || code === "too_many_requests" || code === "throttlingexception")
  )
    return new RateLimitError({
      ...details,
      retryAfterMs: input.retryAfterMs,
      rateLimit: input.rateLimit,
    })
-  if (
-    input.status === 408 ||
-    input.status === 409 ||
-    (input.status !== undefined && input.status >= 500) ||
-    // Server codes and phrasing only decide when no HTTP status contradicts them:
-    // gateways such as OpenCode Zen substitute `server_error` for codes they do
-    // not forward, so a 4xx with a server code is still a rejected request.
-    ((input.status === undefined || input.status < 400) &&
-      ((!codes.some((code) => INVALID_REQUEST_CODES.has(code)) && SERVER_ERROR_TEXT.test(text)) ||
-        codes.some((code) => SERVER_CODES.has(code) || code.includes("exhausted") || code.includes("unavailable"))))
-  )
+  if (RATE_LIMIT_TEXT.test(text))
+    return new RateLimitError({
+      ...details,
+      retryAfterMs: input.retryAfterMs,
+      rateLimit: input.rateLimit,
+    })
+  if (NETWORK_ERROR_TEXT.test(text)) return new ProviderInternalError(details)
+  if (codes.some((code) => SERVER_CODES.has(code) || code.includes("exhausted") || code.includes("unavailable")))
+    return new ProviderInternalError({
+      ...details,
+      retryAfterMs: input.retryAfterMs,
+    })
+  if (input.status === 429) {
+    return new RateLimitError({
+      ...details,
+      retryAfterMs: input.retryAfterMs,
+      rateLimit: input.rateLimit,
+    })
+  }
+  if (input.status === 408 || input.status === 409 || (input.status !== undefined && input.status >= 500))
    return new ProviderInternalError({
      ...details,
      retryAfterMs: input.retryAfterMs,
    })
  if (codes.some((code) => INVALID_REQUEST_CODES.has(code))) return new InvalidRequestError(details)
-  // Any remaining 4xx is a deterministic rejection of this request.
-  if (input.status !== undefined && input.status >= 400 && input.status < 500) return new InvalidRequestError(details)
+  if (input.status === 400 || input.status === 404 || input.status === 413 || input.status === 422)
+    return new InvalidRequestError(details)
  return new UnknownProviderError(details)
 }

@@ -197,24 +163,12 @@ function providerCodes(value: unknown) {
  const decoded = typeof value === "string" ? Option.getOrUndefined(decodeJson(value)) : value
  if (!isRecord(decoded)) return []
  const error = isRecord(decoded.error) ? decoded.error : undefined
-  const inner = error && isRecord(error.innererror) ? error.innererror : undefined
-  const metadata = error && isRecord(error.metadata) ? error.metadata : undefined
  const response = isRecord(decoded.response) ? decoded.response : undefined
  const responseError = response && isRecord(response.error) ? response.error : undefined
  const exception = isRecord(decoded.exception) ? decoded.exception : undefined
-  return [
-    decoded.code,
-    decoded.error_type,
-    error?.code,
-    error?.type,
-    error?.status,
-    error?.error_type,
-    inner?.code,
-    metadata?.error_type,
-    responseError?.code,
-    response?.error_type,
-    exception?.type,
-  ].filter((value): value is string => typeof value === "string")
+  return [decoded.code, error?.code, error?.type, error?.status, responseError?.code, exception?.type].filter(
+    (value): value is string => typeof value === "string",
+  )
 }

 function isRecord(value: unknown): value is Record<string, unknown> {
@@ -1,10 +1,5 @@
 import type { LanguageModel, ProviderOptions } from "./schema/index.js"
-import type { CompactionOperations } from "./route/client.js"

-/**
- * Flat, serializable settings for `model(modelID, settings)`. Each entrypoint declares the connection keys it
- * reads; every other key is a request option for the route's protocol.
- */
 export interface Settings extends Readonly<Record<string, unknown>> {
  readonly baseURL?: string
  readonly headers?: Readonly<Record<string, string>>
@@ -14,9 +9,8 @@ export interface Settings extends Readonly<Record<string, unknown>> {
 export interface Definition<
  ProviderSettings extends Settings = Settings,
  Options extends ProviderOptions = ProviderOptions,
-  Compact extends CompactionOperations | undefined = CompactionOperations | undefined,
 > {
-  readonly model: (modelID: string, settings: ProviderSettings) => LanguageModel<Options, Compact>
+  readonly model: (modelID: string, settings: ProviderSettings) => LanguageModel<Options>
 }

 export * as ProviderPackage from "./provider-package.js"
@@ -1,144 +0,0 @@
-import { Struct } from "effect"
-import type { ProviderPackage } from "../provider-package.js"
-import { AlibabaChat } from "../protocols/alibaba-chat.js"
-import { AlibabaMessages } from "../protocols/alibaba-messages.js"
-import { AlibabaResponses } from "../protocols/alibaba-responses.js"
-import { AuthOptions, type AtLeastOne, type ProviderAuthOption } from "../route/auth-options.js"
-import { Route, type RouteDefaultsInput } from "../route/client.js"
-import { Endpoint } from "../route/endpoint.js"
-import { Framing } from "../route/framing.js"
-import { ProviderConfigurationError, ProviderID, ToolDefinition, type ModelID } from "../schema/index.js"
-
-export const id = ProviderID.make("alibaba")
-
-export type Region =
-  | "ap-southeast-1"
-  | "cn-beijing"
-  | "cn-hongkong"
-  | "us-east-1"
-  | "eu-central-1"
-  | "ap-northeast-1"
-  | (string & {})
-export type ChatOptionsInput = AlibabaChat.OptionsInput
-export type MessagesOptionsInput = AlibabaMessages.OptionsInput
-export type ResponsesOptionsInput = AlibabaResponses.OptionsInput
-
-type Location = AtLeastOne<{
-  readonly region: Region
-  /** Overrides the selected API's complete base URL, including its version prefix. */
-  readonly baseURL: string
-}> & { readonly workspaceID?: string }
-
-export type Config = Location &
-  Omit<RouteDefaultsInput, "providerOptions"> &
-  ProviderAuthOption<"optional"> & {
-    readonly providerOptions?: ChatOptionsInput | MessagesOptionsInput | ResponsesOptionsInput
-  }
-export type Settings<Options = ChatOptionsInput> = Location &
-  ProviderPackage.Settings &
-  Options & {
-    readonly apiKey?: string
-  }
-
-const hosts = new Map<string, string>([
-  ["ap-southeast-1", "dashscope-intl.aliyuncs.com"],
-  ["cn-beijing", "dashscope.aliyuncs.com"],
-  ["cn-hongkong", "cn-hongkong.dashscope.aliyuncs.com"],
-  ["us-east-1", "dashscope-us.aliyuncs.com"],
-])
-const chatRoute = Route.make({
-  id: "alibaba-chat",
-  provider: id,
-  providerMetadataKey: "alibaba",
-  protocol: AlibabaChat.protocol,
-  endpoint: Endpoint.path("/chat/completions"),
-  framing: Framing.sse,
-})
-const messagesRoute = Route.make({
-  id: "alibaba-messages",
-  provider: id,
-  providerMetadataKey: "alibaba",
-  protocol: AlibabaMessages.protocol,
-  endpoint: Endpoint.path("/messages"),
-  framing: Framing.sse,
-  headers: () => ({ "anthropic-version": "2023-06-01" }),
-})
-const responsesRoute = Route.make({
-  id: "alibaba-responses",
-  provider: id,
-  providerMetadataKey: "alibaba",
-  protocol: AlibabaResponses.protocol,
-  endpoint: Endpoint.path("/responses"),
-  framing: Framing.sse,
-})
-
-export const routes = [chatRoute, messagesRoute, responsesRoute]
-
-export const configure = (input: Config) => {
-  const { apiKey: _key, auth: _auth, region, workspaceID, baseURL, ...rest } = input
-  const host =
-    region === undefined
-      ? undefined
-      : workspaceID === undefined
-        ? hosts.get(region)
-        : `${workspaceID}.${region}.maas.aliyuncs.com`
-  if (baseURL === undefined) {
-    if (region === undefined)
-      throw new ProviderConfigurationError({ provider: id, message: "Alibaba requires region or baseURL" })
-    if (host === undefined)
-      throw new ProviderConfigurationError({
-        provider: id,
-        message: `Alibaba region ${region} requires workspaceID or baseURL`,
-      })
-  }
-  const opts = { ...rest, auth: AuthOptions.bearer(input, ["DASHSCOPE_API_KEY", "ALIBABA_API_KEY"]) }
-  const common = { ...opts, endpoint: { baseURL: baseURL ?? `https://${host}/compatible-mode/v1` } }
-  const chat = (id: string | ModelID) =>
-    chatRoute.with(common).model<ChatOptionsInput>({ id, compatibility: AlibabaChat.compatibility })
-  const messages = (id: string | ModelID) =>
-    messagesRoute
-      .with({
-        ...opts,
-        endpoint: { baseURL: baseURL ?? `https://${host}/apps/anthropic/v1` },
-      })
-      .model<MessagesOptionsInput>({ id, compatibility: { requireSignature: false } })
-  const responses = (id: string | ModelID) => responsesRoute.with(common).model<ResponsesOptionsInput>({ id })
-  return { id, model: chat, chat, messages, responses, configure }
-}
-
-export const provider = { id, configure }
-
-export const model: ProviderPackage.Definition<Settings, ChatOptionsInput>["model"] = (id, input) =>
-  fromSettings(input).chat(id)
-export const messagesModel: ProviderPackage.Definition<
-  Settings<MessagesOptionsInput>,
-  MessagesOptionsInput
->["model"] = (id, input) => fromSettings(input).messages(id)
-export const responsesModel: ProviderPackage.Definition<
-  Settings<ResponsesOptionsInput>,
-  ResponsesOptionsInput
->["model"] = (id, input) => fromSettings(input).responses(id)
-
-function fromSettings(input: Settings<Config["providerOptions"]>) {
-  const { body, ...rest } = input
-  return configure({
-    ...rest,
-    http: body === undefined ? undefined : { body },
-    providerOptions: Struct.omit(rest, ["apiKey", "baseURL", "headers", "region", "workspaceID"]),
-  })
-}
-
-export const webSearch = () => hostedTool("web_search", "Search the web with Alibaba's hosted search tool.")
-export const webExtractor = () => hostedTool("web_extractor", "Extract web page content with Alibaba's hosted tool.")
-export const codeInterpreter = () => hostedTool("code_interpreter", "Execute code with Alibaba's hosted interpreter.")
-
-function hostedTool(type: "web_search" | "web_extractor" | "code_interpreter", description: string) {
-  return ToolDefinition.make({
-    name: type,
-    description,
-    inputSchema: { type: "object", properties: {} },
-    native: { alibaba: { type } },
-  })
-}
-
-export * as Alibaba from "./alibaba.js"
@@ -1 +0,0 @@
-export { model, type Settings } from "../alibaba.js"
@@ -1,3 +0,0 @@
-import type { Alibaba } from "../alibaba.js"
-export { messagesModel as model } from "../alibaba.js"
-export type Settings = Alibaba.Settings<Alibaba.MessagesOptionsInput>
@@ -1,3 +0,0 @@
-import type { Alibaba } from "../alibaba.js"
-export { responsesModel as model } from "../alibaba.js"
-export type Settings = Alibaba.Settings<Alibaba.ResponsesOptionsInput>
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Kit Langton	c80ec7adc0	chore(plugins): integrate current v2 and SDK readiness fixture	2026-08-28 00:10:34 -04:00
Kit Langton	93042ddaf1	feat(plugins): check, update, and reload plugins in the TUI	2026-08-28 00:05:37 -04:00
				`@@ -1 +0,0 @@`
				`export { model, type Settings } from "../alibaba.js"`