feat(server): stream fs.read responses with HTTP Range support

refactor(tui): remove permanently disabled unshare command (#53003 )
refactor(tui): drop unused ComposerTab.onClose and composer re-export (#53002 )
2026-10-05 06:56:16 +00:00 · 2026-10-03 22:17:16 -07:00 · 2026-10-03 21:34:00 -07:00 · 2026-10-03 21:33:55 -07:00 · 2026-10-03 21:33:51 -07:00 · 2026-10-03 21:33:47 -07:00
991 changed files with 31421 additions and 14049 deletions
@@ -18,9 +18,20 @@ jobs:
    steps:
      - name: Checkout repository
        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          # A pull request checks out its merge into the current base; the first parent is that base.
+          fetch-depth: 2

      - name: Setup Bun
        uses: ./.github/actions/setup-bun

      - name: Run checks
        run: bun run check
+
+      # Every GUI package file (app, desktop, gui-extensions, ui, session-ui) a pull request adds or edits must be free of
+      # oxlint problems, warn-level rules (anti-slop) included. Other packages are not affected.
+      - name: Lint changed files
+        if: github.event_name == 'pull_request'
+        # Against the merge's first parent, so base-branch commits the pull request has not merged are not counted as its
+        # changes (the event's base SHA can predate them).
+        run: bun run lint:changed HEAD^1
@@ -2,9 +2,9 @@ name: nix-eval

 on:
  push:
-    branches: [dev]
+    branches: [dev, v2]
  pull_request:
-    branches: [dev]
+    branches: [dev, v2]
  workflow_dispatch:

 concurrency:
@@ -252,6 +252,13 @@ jobs:
          CI: true
        timeout-minutes: 15

+      - name: Run app component tests
+        if: ${{ !cancelled() && env.E2E_ENABLED == 'true' }}
+        run: bun --cwd packages/app test:components
+        env:
+          CI: true
+        timeout-minutes: 15
+
      - name: Upload Playwright artifacts
        if: always() && env.E2E_ENABLED == 'true'
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
@@ -264,3 +271,5 @@ jobs:
            packages/app/e2e/playwright-report
            packages/session-ui/component-tests/test-results
            packages/session-ui/component-tests/playwright-report
+            packages/app/component-tests/test-results
+            packages/app/component-tests/playwright-report
@@ -63,8 +63,60 @@
        "anti-slop-effect/prefer-effect-match": "warn"
      }
    },
+    {
+      "files": ["packages/gui-extensions/src/*.ts", "packages/gui-extensions/src/*.tsx"],
+      "rules": {
+        "no-restricted-imports": [
+          "error",
+          {
+            "paths": [
+              {
+                "name": "solid-js",
+                "importNames": ["createEffect", "createRenderEffect", "createComputed"],
+                "message": "Extension code runs side effects through the SDK: createKeyed(source, fn, { otherwise }) per provider generation or value, createMemo or a plain function for derived values, createLatest for async data, createVisitState for per-visit state, and the handler for logic a user action causes. An escape hatch needs an oxlint-disable comment with a reason."
+              }
+            ]
+          }
+        ]
+      }
+    },
    {
      "files": ["packages/gui-extensions/src/*/**"],
+      "rules": {
+        "no-restricted-imports": [
+          "error",
+          {
+            "paths": [
+              {
+                "name": "solid-js",
+                "importNames": ["createEffect", "createRenderEffect", "createComputed"],
+                "message": "Extension code runs side effects through the SDK: createKeyed(source, fn, { otherwise }) per provider generation or value, createMemo or a plain function for derived values, createLatest for async data, createVisitState for per-visit state, and the handler for logic a user action causes. An escape hatch needs an oxlint-disable comment with a reason."
+              }
+            ],
+            "patterns": [
+              {
+                "regex": "^@opencode/(app|desktop)(/|$)",
+                "message": "GUI extensions never import the app or desktop packages. Use the SDK."
+              },
+              {
+                "regex": "^@/",
+                "message": "GUI extensions never import app internals. Use the SDK."
+              },
+              {
+                "group": ["../*/*", "!../*/contract", "!../sdk/*"],
+                "message": "Import another extension only through its contract.ts."
+              },
+              {
+                "regex": "\\.css$",
+                "message": "Import CSS with ?inline and contribute it with ctx.add(Style, css)."
+              }
+            ]
+          }
+        ]
+      }
+    },
+    {
+      "files": ["packages/gui-extensions/src/sdk/**"],
      "rules": {
        "no-restricted-imports": [
          "error",
@@ -20,10 +20,7 @@ If you need true isolation, run OpenCode inside a Docker container or VM.

 ### Server Mode

-OpenCode clients normally discover or start a local background HTTP service. The CLI binds to loopback by default and
-supplies a generated HTTP Basic Auth password when one is not configured; its server process refuses to start without a
-password. If you expose the service beyond your machine, use appropriate network access controls as well as authentication.
-An application embedding the fetch handler without a password must provide its own access control.
+Server mode is opt-in only. When enabled, set `OPENCODE_SERVER_PASSWORD` to require HTTP Basic Auth. Without this, the server runs unauthenticated (with a warning). It is the end user's responsibility to secure the server - any functionality it provides is not a vulnerability.

 ### Out of Scope

@@ -33,7 +33,7 @@
    },
    "packages/ai": {
      "name": "@opencode/ai",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@aws-sdk/credential-providers": "3.1057.0",
        "@opencode/schema": "workspace:*",
@@ -55,7 +55,7 @@
    },
    "packages/app": {
      "name": "@opencode/app",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@corvu/drawer": "catalog:",
        "@dnd-kit/abstract": "0.5.0",
@@ -112,7 +112,7 @@
    },
    "packages/cli": {
      "name": "@opencode/cli",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "bin": {
        "opencode": "./bin/opencode.cjs",
        "opencode2": "./bin/opencode2.cjs",
@@ -122,7 +122,7 @@
        "@clack/core": "1.0.0-alpha.1",
        "@clack/prompts": "1.0.0-alpha.1",
        "@effect/platform-node": "catalog:",
-        "@opencode-ai/pty": "0.1.13",
+        "@opencode-ai/pty": "0.2.0",
        "@opencode/client": "workspace:*",
        "@opencode/plugin": "workspace:*",
        "@opencode/schema": "workspace:*",
@@ -133,6 +133,7 @@
        "@opentui/solid": "catalog:",
        "@parcel/watcher": "2.5.1",
        "@silvia-odwyer/photon-node": "0.3.4",
+        "diff": "catalog:",
        "effect": "catalog:",
        "immer": "11.1.4",
        "jsonc-parser": "3.3.1",
@@ -178,7 +179,7 @@
    },
    "packages/client": {
      "name": "@opencode/client",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@opencode/protocol": "workspace:*",
        "@opencode/schema": "workspace:*",
@@ -204,7 +205,7 @@
    },
    "packages/codemode": {
      "name": "@opencode/codemode",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "acorn": "8.15.0",
        "effect": "catalog:",
@@ -217,7 +218,7 @@
    },
    "packages/console/app": {
      "name": "@opencode/console-app",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@cloudflare/vite-plugin": "1.15.2",
        "@ibm/plex": "6.4.1",
@@ -253,7 +254,7 @@
    },
    "packages/console/core": {
      "name": "@opencode/console-core",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@aws-sdk/client-sts": "3.782.0",
        "@jsx-email/render": "1.1.1",
@@ -280,7 +281,7 @@
    },
    "packages/console/function": {
      "name": "@opencode/console-function",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@openauthjs/openauth": "0.0.0-20250322224806",
        "@opencode/console-core": "workspace:*",
@@ -297,7 +298,7 @@
    },
    "packages/console/mail": {
      "name": "@opencode/console-mail",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@jsx-email/all": "2.2.3",
        "@jsx-email/cli": "1.4.3",
@@ -321,7 +322,7 @@
    },
    "packages/console/support": {
      "name": "@opencode/console-support",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@cloudflare/vite-plugin": "1.15.2",
        "@opencode/console-core": "workspace:*",
@@ -341,7 +342,7 @@
    },
    "packages/core": {
      "name": "@opencode/core",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@ai-sdk/cohere": "3.0.27",
        "@ai-sdk/gateway": "3.0.104",
@@ -354,7 +355,7 @@
        "@lydell/node-pty": "catalog:",
        "@modelcontextprotocol/client": "2.0.0",
        "@modelcontextprotocol/core": "2.0.0",
-        "@opencode-ai/pty": "0.1.13",
+        "@opencode-ai/pty": "0.2.0",
        "@opencode/ai": "workspace:*",
        "@opencode/codemode": "workspace:*",
        "@opencode/plugin": "workspace:*",
@@ -364,7 +365,7 @@
        "@parcel/watcher": "2.5.1",
        "@silvia-odwyer/photon-node": "0.3.4",
        "@standard-schema/spec": "catalog:",
-        "bun-pty": "0.4.8",
+        "bun-pty": "0.4.9",
        "diff": "catalog:",
        "drizzle-orm": "catalog:",
        "effect": "catalog:",
@@ -410,7 +411,7 @@
    },
    "packages/desktop": {
      "name": "@opencode/desktop",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@zip.js/zip.js": "2.7.62",
        "electron-context-menu": "5.0.0",
@@ -455,7 +456,7 @@
    },
    "packages/enterprise": {
      "name": "@opencode/enterprise",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@hono/standard-validator": "catalog:",
        "@opencode-ai/sdk": "1.18.21",
@@ -492,7 +493,7 @@
    },
    "packages/function": {
      "name": "@opencode/function",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@octokit/auth-app": "8.0.1",
        "@octokit/rest": "catalog:",
@@ -508,7 +509,7 @@
    },
    "packages/gui-extensions": {
      "name": "@opencode/gui-extensions",
-      "version": "2.0.20",
+      "version": "2.0.22",
      "dependencies": {
        "@dnd-kit/abstract": "0.5.0",
        "@dnd-kit/dom": "0.5.0",
@@ -553,7 +554,7 @@
    },
    "packages/http-recorder": {
      "name": "@opencode/http-recorder",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@effect/platform-node-shared": "4.0.0-rc.112",
      },
@@ -572,7 +573,7 @@
    },
    "packages/httpapi-codegen": {
      "name": "@opencode/httpapi-codegen",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "effect": "catalog:",
        "prettier": "3.6.2",
@@ -585,7 +586,7 @@
    },
    "packages/latex": {
      "name": "@opencode/latex",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@opencode/plugin": "workspace:*",
        "@opentui/core": "catalog:",
@@ -599,7 +600,7 @@
    },
    "packages/merman": {
      "name": "@opencode/merman",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@opencode/plugin": "workspace:*",
        "@opentui/core": "catalog:",
@@ -614,7 +615,7 @@
    },
    "packages/plugin": {
      "name": "@opencode/plugin",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@ai-sdk/provider": "3.0.8",
        "@opencode/ai": "workspace:*",
@@ -653,7 +654,7 @@
    },
    "packages/plugin-browser": {
      "name": "@opencode/plugin-browser",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@opencode/plugin": "workspace:*",
        "@opencode/schema": "workspace:*",
@@ -683,7 +684,7 @@
    },
    "packages/protocol": {
      "name": "@opencode/protocol",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@opencode/schema": "workspace:*",
        "effect": "catalog:",
@@ -698,7 +699,7 @@
    },
    "packages/schema": {
      "name": "@opencode/schema",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@standard-schema/spec": "catalog:",
        "effect": "catalog:",
@@ -722,7 +723,7 @@
    },
    "packages/sdk": {
      "name": "@opencode/sdk",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@opencode/client": "workspace:*",
        "@opencode/core": "workspace:*",
@@ -743,7 +744,7 @@
    },
    "packages/server": {
      "name": "@opencode/server",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@effect/platform-node": "catalog:",
        "@effect/platform-node-shared": "catalog:",
@@ -765,7 +766,7 @@
    },
    "packages/session-ui": {
      "name": "@opencode/session-ui",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@kobalte/core": "catalog:",
        "@opencode/client": "workspace:*",
@@ -800,7 +801,7 @@
    },
    "packages/simulation": {
      "name": "@opencode/simulation",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@opencode/ai": "workspace:*",
        "@opencode/core": "workspace:*",
@@ -820,7 +821,7 @@
    },
    "packages/stats/app": {
      "name": "@opencode/stats-app",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@ibm/plex": "6.4.1",
        "@kobalte/core": "catalog:",
@@ -854,7 +855,7 @@
    },
    "packages/stats/core": {
      "name": "@opencode/stats-core",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@aws-sdk/client-athena": "3.933.0",
        "@planetscale/database": "1.19.0",
@@ -873,7 +874,7 @@
    },
    "packages/stats/server": {
      "name": "@opencode/stats-server",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@aws-sdk/client-firehose": "3.933.0",
        "@effect/platform-node": "catalog:",
@@ -919,7 +920,7 @@
    },
    "packages/theme": {
      "name": "@opencode/theme",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@opentui/core": "catalog:",
        "effect": "catalog:",
@@ -933,7 +934,7 @@
    },
    "packages/tui": {
      "name": "@opencode/tui",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@opencode/client": "workspace:*",
        "@opencode/core": "workspace:*",
@@ -967,7 +968,7 @@
    },
    "packages/ui": {
      "name": "@opencode/ui",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@kobalte/core": "catalog:",
        "@pierre/diffs": "catalog:",
@@ -1002,7 +1003,7 @@
    },
    "packages/util": {
      "name": "@opencode/util",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@effect/opentelemetry": "catalog:",
        "@effect/platform-node": "catalog:",
@@ -1040,7 +1041,7 @@
    },
    "packages/web": {
      "name": "@opencode/web",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "@astrojs/cloudflare": "12.6.3",
        "@astrojs/markdown-remark": "6.3.1",
@@ -1081,7 +1082,7 @@
    },
    "services/update": {
      "name": "@opencode/update",
-      "version": "2.0.21",
+      "version": "2.0.22",
      "dependencies": {
        "jose": "6.0.11",
        "semver": "catalog:",
@@ -2166,19 +2167,19 @@

    "@opencode-ai/protocol": ["@opencode-ai/protocol@0.0.0-beta-18050", "", { "dependencies": { "@opencode-ai/schema": "0.0.0-beta-18050", "effect": "4.0.0-rc.111" } }, "sha512-HDQMnvGp8IU0MdBRbEuydX1WQm09BZ4HJm9iSMQwzweJuQ2HNscgzHJPIH6P02BsbbtfJ8J7sZGPItrz1tWSgw=="],

-    "@opencode-ai/pty": ["@opencode-ai/pty@0.1.13", "", { "optionalDependencies": { "@opencode-ai/pty-darwin-arm64": "0.1.13", "@opencode-ai/pty-darwin-x64": "0.1.13", "@opencode-ai/pty-linux-arm64-gnu": "0.1.13", "@opencode-ai/pty-linux-arm64-musl": "0.1.13", "@opencode-ai/pty-linux-x64-gnu": "0.1.13", "@opencode-ai/pty-linux-x64-musl": "0.1.13" }, "bin": { "opencode-pty": "bin/opencode-pty.js" } }, "sha512-WPCN8h8HaZhhUcrMG0zu+4D9vco0EZiEg/gCF1K3JPRN6UsHMiXq1HVIy5IlyfcoyjfViRmQmXYE4AuU3laBjA=="],
+    "@opencode-ai/pty": ["@opencode-ai/pty@0.2.0", "", { "optionalDependencies": { "@opencode-ai/pty-darwin-arm64": "0.2.0", "@opencode-ai/pty-darwin-x64": "0.2.0", "@opencode-ai/pty-linux-arm64-gnu": "0.2.0", "@opencode-ai/pty-linux-arm64-musl": "0.2.0", "@opencode-ai/pty-linux-x64-gnu": "0.2.0", "@opencode-ai/pty-linux-x64-musl": "0.2.0" }, "bin": { "opencode-pty": "bin/opencode-pty.js" } }, "sha512-pV86urAwinpwFXX8AJlOf8S9CVJhGsV+11I/J6TcxMW0c7u6LgeODzdj/BVBC6jUhsG2aKDxg8rACMcDCy3HiA=="],

-    "@opencode-ai/pty-darwin-arm64": ["@opencode-ai/pty-darwin-arm64@0.1.13", "", { "os": "darwin", "cpu": "arm64" }, "sha512-fVtQZqVLBuJx/aB+5ojfmQifS1KMc9gxlxpFQ6bxEFU8tn8xHQTiFPaNroZgOtaw7I4ceGyx/eXieK1wp68yAA=="],
+    "@opencode-ai/pty-darwin-arm64": ["@opencode-ai/pty-darwin-arm64@0.2.0", "", { "os": "darwin", "cpu": "arm64" }, "sha512-2y6xrktb2J7rRk+mzAJHA8cCbWhC4Lo2zJ66t9ad59qFhL5nzAPfpEOwnyvvFqhxebHNvL08Mp64M9IHnM0aiA=="],

-    "@opencode-ai/pty-darwin-x64": ["@opencode-ai/pty-darwin-x64@0.1.13", "", { "os": "darwin", "cpu": "x64" }, "sha512-b/tAEm0hCMXraPM9cxR8Rg7X1UBZInRTaxWAS4Ht9eH1nWj1rANOLvHWiWX/vVh5TB0Ubg8bWPu4B0nZkEHROQ=="],
+    "@opencode-ai/pty-darwin-x64": ["@opencode-ai/pty-darwin-x64@0.2.0", "", { "os": "darwin", "cpu": "x64" }, "sha512-XVQwK9+KgVGYunCYPCCBf1Or0z6zSkzjgfdJd7dEe/LOFg5vmMkOfSB9dCXnoRCWGviWYk7xd07iFIFOgyj5Ig=="],

-    "@opencode-ai/pty-linux-arm64-gnu": ["@opencode-ai/pty-linux-arm64-gnu@0.1.13", "", { "os": "linux", "cpu": "arm64" }, "sha512-I124aSYBBjpGZnYExHfIajkvVK1FiK+//OJBGdqqFp5pas2Oruq4O8tv+pMoxomZIYh2ce/QhOOYLHRwXsthTg=="],
+    "@opencode-ai/pty-linux-arm64-gnu": ["@opencode-ai/pty-linux-arm64-gnu@0.2.0", "", { "os": "linux", "cpu": "arm64" }, "sha512-TPVGCQk5E65IY3ipcpd17rwKehdvXcXEYRhhGzok/6Dske69ei2S+ERz7NXZ8cKFAvbiiT771HHM+XyVYAl+7A=="],

-    "@opencode-ai/pty-linux-arm64-musl": ["@opencode-ai/pty-linux-arm64-musl@0.1.13", "", { "os": "linux", "cpu": "arm64" }, "sha512-feWsfKpaDytGJzutoK43GqQwVghG2vHZt6BE/ydPZNuqIrySQ/6JfliUAMwn5BWs/Ky7ouSwKHCyAVeukusSvg=="],
+    "@opencode-ai/pty-linux-arm64-musl": ["@opencode-ai/pty-linux-arm64-musl@0.2.0", "", { "os": "linux", "cpu": "arm64" }, "sha512-iH6/liY7xN1OXVD9eGzdH11BVGvnpPsH5Z1Unz0Pn9EzkPFf28oDNKNyeXV0xIAP53oiYp8gpRq2PADNwbVsTg=="],

-    "@opencode-ai/pty-linux-x64-gnu": ["@opencode-ai/pty-linux-x64-gnu@0.1.13", "", { "os": "linux", "cpu": "x64" }, "sha512-jliNgsevGuxfIeX7eyzjHhrJkF8uEUPnDLbF2v16uv69FhEHrraf7jyWkxazMP6rNvn2CGtwMMc4BXPS5pzjhg=="],
+    "@opencode-ai/pty-linux-x64-gnu": ["@opencode-ai/pty-linux-x64-gnu@0.2.0", "", { "os": "linux", "cpu": "x64" }, "sha512-GhdrmbUzxGHRfWvt1qutgVD4HLb7aSBsgWGjFsc6k8HjO5ZbdaC3ScRyd512YAAG5KAROLKZ6+0SEBsm5xFYlA=="],

-    "@opencode-ai/pty-linux-x64-musl": ["@opencode-ai/pty-linux-x64-musl@0.1.13", "", { "os": "linux", "cpu": "x64" }, "sha512-rXDpidW66gz2b2M/NbUN8ZKmAxaJcASnuHATeXevlrFdiPUv8uJwvkRd6Pla1fp01Q65MkBmgRa7Q9c+H1PlzA=="],
+    "@opencode-ai/pty-linux-x64-musl": ["@opencode-ai/pty-linux-x64-musl@0.2.0", "", { "os": "linux", "cpu": "x64" }, "sha512-EbHchDsMmL5aOReIoo8NvQkKnyhyKmoL2RleF2JYF76va3FKuksmwsOBgQJh54i+QA4Fd0+9x54Q+2fJOzPiRQ=="],

    "@opencode-ai/schema": ["@opencode-ai/schema@0.0.0-beta-18050", "", { "dependencies": { "@standard-schema/spec": "1.1.0", "effect": "4.0.0-rc.111" } }, "sha512-/D6VXaWlytTXR3IOiMLIKuPcfp7FQNUzRPm9z3K7UBFd1Bw4q/WZksaf5RVcBGz+0YRxYMc1V4D7MFlceSgtyg=="],

@@ -3548,7 +3549,7 @@

    "bun-ffi-structs": ["bun-ffi-structs@0.3.1", "", { "peerDependencies": { "typescript": "^5" } }, "sha512-3gM7PpVWLyrwxWjcilSiGuhWanhZivvo6l0u573NziPH6f/gwk6McbaYgn7oJWov6pKGRTDbrg94W5DcJsKTtQ=="],

-    "bun-pty": ["bun-pty@0.4.8", "", {}, "sha512-rO70Mrbr13+jxHHHu2YBkk2pNqrJE5cJn29WE++PUr+GFA0hq/VgtQPZANJ8dJo6d7XImvBk37Innt8GM7O28w=="],
+    "bun-pty": ["bun-pty@0.4.9", "", {}, "sha512-IUF/B3FANo8vIQ775Zt7Er7lphMpYMhLkes45am2WE8FaVI7KRYtj1rQwliZ18b6GpNzBNWcl7sz9QT5wDFBeQ=="],

    "bun-types": ["bun-types@1.4.2", "", { "dependencies": { "@types/node": "*" } }, "sha512-bxV1FgK7yBIzjRe5zBozIM4Bem11ZJcCXSrjWRG3YWLt8yFDePu4cLjpebO8OvPeIE9trbyPF4fuj3Cia4Fj3w=="],

@@ -13,7 +13,12 @@
  opencode,
 }:
 let
-  electron = callPackage ./electron.nix { };
+  electronPin =
+    (lib.pipe ../packages/desktop/package.json [
+      builtins.readFile
+      builtins.fromJSON
+    ]).devDependencies.electron;
+  electron = callPackage ./electron.nix { inherit electronPin; };
 in
 stdenv.mkDerivation (finalAttrs: {
  pname = "opencode-desktop";
@@ -35,6 +40,8 @@ stdenv.mkDerivation (finalAttrs: {
    copyDesktopItems
  ]
  ++ lib.optionals stdenv.hostPlatform.isDarwin [
+    darwin.cctools
+    darwin.sigtool
    # Ad-hoc sign the .app: --config.mac.identity=null below skips signing.
    darwin.autoSignDarwinBinariesHook
  ];
@@ -66,7 +73,7 @@ stdenv.mkDerivation (finalAttrs: {
    ''
    # https://github.com/electron/electron/issues/31121
    # mac builds use a .app bundle which doesnt have this issue
-    + lib.optionalString stdenv.isLinux ''
+    + lib.optionalString stdenv.hostPlatform.isLinux ''
      substituteInPlace \
        packages/desktop/src/main/windows/appearance.ts \
        packages/desktop/src/main/service/desktop-cli.ts \
@@ -74,6 +81,7 @@ stdenv.mkDerivation (finalAttrs: {
    '';

  preBuild = ''
+    echo "electron ${electron.version} from nixpkgs ${lib.version}, package.json pins ${electronPin}"
    cp -r "${electron.dist}" $HOME/.electron-dist
    chmod -R u+w $HOME/.electron-dist

@@ -89,8 +97,15 @@ stdenv.mkDerivation (finalAttrs: {

    export OPENCODE_CLI_DIST="$TMPDIR/desktop-cli"
    cli_package=$(bun -e 'import { getCurrentCli } from "./scripts/utils.ts"; console.log(getCurrentCli().package.replace("@opencode/", ""))')
+    # copyBuiltCliToResources joins this dist with the npm package name getCurrentCli()
+    # reports, not the Nix build's name. It reads only .version from the manifest and
+    # writes it as opencode-cli.version beside the binary.
    mkdir -p "$OPENCODE_CLI_DIST/$cli_package/bin"
    cp ${lib.getExe opencode} "$OPENCODE_CLI_DIST/$cli_package/bin/opencode"
+    # OPENCODE_VERSION is what the bundled CLI prints for --version, so the manifest
+    # and the executable cannot drift.
+    bun -e 'await Bun.write(process.argv[1], JSON.stringify({ version: process.env.OPENCODE_VERSION }) + "\n")' \
+      "$OPENCODE_CLI_DIST/$cli_package/package.json"

    bun run build
    npx electron-builder --dir \
@@ -138,6 +153,13 @@ stdenv.mkDerivation (finalAttrs: {
    "libc.musl-x86_64.so.1"
  ];

+  passthru = {
+    # electronVersion is what ships; electronPin is what packages/desktop/package.json
+    # asks for. They differ whenever nixpkgs carries no release of the pinned minor.
+    electronVersion = electron.version;
+    inherit electronPin;
+  };
+
  meta = {
    description = "OpenCode Desktop App";
    mainProgram = "opencode-desktop";
@@ -1,12 +1,10 @@
-{ callPackage, path }:
+{ lib, pkgs, electronPin }:
 let
-  version = (builtins.fromJSON (builtins.readFile ../packages/desktop/package.json)).devDependencies.electron;
+  # Nixpkgs owns the release hashes, so bumping the pin no longer means editing this repo. Only the
+  # major is delegated, so what gets built trails the pin whenever nixpkgs has not shipped it yet.
+  # That is safe: the bundle ships one native addon, node-pty's Node-API prebuild, and
+  # only the win32 WSL runtime loads it, so nothing in the main process binds the
+  # Electron ABI.
+  major = lib.versions.major electronPin;
 in
-(callPackage (path + "/pkgs/development/tools/electron/binary/generic.nix") { }) version {
-  # Electron 42.10.1 SHASUMS256.txt; update with the desktop package version.
-  aarch64-linux = "20e68d6c4e47f3ebf59de7c6b1f8b8bec6a6ebda6a451132f9b465f3f13ce467";
-  x86_64-linux = "2452b27112d92387471fa2488aafac85d79ea3f2ee1216c0abd5150d6c12362b";
-  aarch64-darwin = "ac7194a3dfd81930ba35355c01620262c1254752859b42dcb8f4b9e4d174a871";
-  # fetchzip hashes the unpacked headers, not the release tarball.
-  headers = "sha256-4eUy3BZVvxTl7KUOsxio7769lL6ag/ecbeK+qLURWMI=";
-}
+pkgs."electron_${major}-bin" or (throw "nixpkgs ${lib.version} carries no prebuilt electron ${major}: run `nix flake update nixpkgs`, or pin a major nixpkgs still carries")
@@ -1,7 +1,7 @@
 {
  "nodeModules": {
-    "x86_64-linux": "sha256-g3k0cAFGqzmRYlcIkg1NDvlx1WxHYhnYPL0/a8E+qTg=",
-    "aarch64-linux": "sha256-a+3ymqdxOONGe2Tpq4GUccl1b+Dwzxlb9LFXgE1gZ+0=",
-    "aarch64-darwin": "sha256-h8xIzuMmaWfJqjHCO74xUDCWNKQLFrIGoKYZ+2TauYc="
+    "x86_64-linux": "sha256-2RlbJRTEKSliuUbAE2lAktX63JFR/RKAuLkcCou8wb4=",
+    "aarch64-linux": "sha256-P7DAE018lTJNGmttg87U9oaTAuw/wHlnMStdnXYKCr0=",
+    "aarch64-darwin": "sha256-N+NfV1ObOTnW+ez7As+CS+6ci/iRGCQ6cslvyQFCp6E="
  }
 }
@@ -12,7 +12,7 @@
  installShellFiles,
  versionCheckHook,
  writableTmpDirAsHomeHook,
-  node_modules ? callPackage ./node-modules.nix { },
+  node_modules ? callPackage ./node_modules.nix { },
 }:
 stdenvNoCC.mkDerivation (finalAttrs: {
  pname = "opencode";
@@ -85,14 +85,30 @@ stdenvNoCC.mkDerivation (finalAttrs: {
  '';

  postInstall = lib.optionalString (stdenvNoCC.buildPlatform.canExecute stdenvNoCC.hostPlatform) ''
-    # trick yargs into also generating zsh completions
+    # v2 dropped the `completion` subcommand; --completions is the global flag.
+    # --completions also accepts sh, which emits the same script as bash.
+    # staged to files, substitute below rejects anything that is not a regular file
+    $out/bin/opencode --completions bash > opencode.bash
+    $out/bin/opencode --completions zsh > _opencode
+    $out/bin/opencode --completions fish > opencode.fish
+
    installShellCompletion --cmd opencode \
-      --bash <($out/bin/opencode completion) \
-      --zsh <(SHELL=/bin/zsh $out/bin/opencode completion)
+      --bash opencode.bash \
+      --fish opencode.fish \
+      --zsh _opencode
+
+    # OPENCODE_CLI_NAME is a build-time define, so the opencode2 copies are
+    # renamed rather than regenerated. --replace-fail is a global literal
+    # substitution, so any lowercase opencode that later appears in a
+    # description or help text ships as opencode2 in the opencode2 copy.
+    substitute opencode.bash opencode2.bash --replace-fail opencode opencode2
+    substitute _opencode _opencode2 --replace-fail opencode opencode2
+    substitute opencode.fish opencode2.fish --replace-fail opencode opencode2

    installShellCompletion --cmd opencode2 \
-      --bash <($out/bin/opencode2 completion) \
-      --zsh <(SHELL=/bin/zsh $out/bin/opencode2 completion)
+      --bash opencode2.bash \
+      --fish opencode2.fish \
+      --zsh _opencode2
  '';

  nativeInstallCheckInputs = [
@@ -2,7 +2,7 @@
  "$schema": "https://json.schemastore.org/package.json",
  "name": "opencode",
  "description": "AI-powered development tool",
-  "version": "2.0.21",
+  "version": "2.0.22",
  "private": true,
  "type": "module",
  "packageManager": "bun@1.4.2",
@@ -18,7 +18,8 @@
    "dev:www": "bun run --cwd services/www dev",
    "dev:storybook": "bun --cwd packages/storybook storybook",
    "bench:devex": "bun run --cwd packages/app test:bench:devex",
-    "lint": "oxlint && ast-grep scan -c script/ast-grep/gui-extensions/sgconfig.yml",
+    "lint": "oxlint && ast-grep scan -c script/ast-grep/gui-extensions/sgconfig.yml && bun script/sdk-docs.ts",
+    "lint:changed": "bun script/lint-changed.ts",
    "lint:effect-patterns": "ast-grep scan -c script/ast-grep/sgconfig.yml packages/util/src packages/core/src packages/server/src packages/protocol/src packages/cli/src",
    "lint:effect-simplifications": "ast-grep scan -c script/ast-grep/effect-simplifications/sgconfig.yml --off=unused-suppression packages",
    "test:lint-rules": "ast-grep test -c script/ast-grep/sgconfig.yml",
@@ -27,6 +27,31 @@ Run `LLM.stream(...)` instead of `generate` when you want incremental `LLMEvent`
 `LLM.request(...)`. The event stream is provider-neutral — same shape across OpenAI Chat, OpenAI Responses,
 Anthropic Messages, Gemini, Bedrock Converse, and any OpenAI-compatible deployment.

+### Google Interactions
+
+`Google.configure({ apiKey }).interactions(modelID)` selects the Interactions API; `.model(modelID)` still selects
+GenerateContent. The package entrypoint is `@opencode/ai/providers/google/interactions`.
+
+```ts
+const model = Google.configure({ apiKey }).interactions("gemini-3.8-flash")
+const response = yield* LLM.generate({
+  model,
+  prompt: "Say hello.",
+  providerOptions: { thinkingLevel: "low", thinkingSummaries: "auto", store: true },
+})
+```
+
+Interactions supports text output, streamed function calls, native tool results, thought signatures, and multimodal
+input. Full-history replay is the default (`store: false`); implicit caching works without retained interactions.
+For server-side continuation, set `store: true` on the predecessor, read `interactionId` from the final event's
+`providerMetadata.google`, and pass `previousInteractionId` on the next request with **only new messages**. Repeat
+the system instructions and tool declarations on each request. Set `store: true` on each response you intend to
+continue from. The package does not automatically select or persist continuation IDs.
+
+Raw usage is preserved in `usage.providerMetadata.google`. `inputTokens` follows Google's top-level accounting;
+`contextTokens` uses its full `raw_prompt_token` count when supplied. These can differ substantially with server-side
+continuation. Explicit caches, hosted tools, and generated media are not supported by this initial protocol.
+
 The same configured facade names image, video, speech, and transcription models. `Image.generate` resolves the
 provider's image route from the model and returns `Media.Asset`s with lazily decoded bytes:

@@ -1223,7 +1248,7 @@ const gateway = CloudflareAIGateway.configure({
 }).model("workers-ai/@cf/meta/llama-3.1-8b-instruct")
 ```

-Included LLM providers: OpenAI, Anthropic, Google (Gemini), Google Vertex, Amazon Bedrock, Azure OpenAI, Baseten, Cerebras, Cloudflare AI Gateway, Cloudflare Workers AI, DeepInfra, DeepSeek, Fireworks, Groq, Mistral, OpenRouter, TogetherAI, and xAI. Z.ai currently exposes image generation. Generic Chat Completions, Responses, and Anthropic Messages-compatible entrypoints support custom endpoints.
+Included LLM providers: OpenAI, Anthropic, Google (Gemini), Google Vertex, Amazon Bedrock, Azure OpenAI, Baseten, Cerebras, Cohere, Cloudflare AI Gateway, Cloudflare Workers AI, DeepInfra, DeepSeek, Fireworks, Groq, Mistral, OpenRouter, TogetherAI, and xAI. Z.ai currently exposes image generation. Generic Chat Completions, Responses, and Anthropic Messages-compatible entrypoints support custom endpoints.

 Each named provider owns its module, endpoint, authentication, and route setup. Providers with the same wire format compose the shared protocol directly:

@@ -1,6 +1,6 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
-  "version": "2.0.21",
+  "version": "2.0.22",
  "name": "@opencode/ai",
  "type": "module",
  "license": "MIT",
@@ -38,6 +38,7 @@ const resolve = (policy: CachePolicy | undefined): CachePolicyObject => {
 // prefix caching, Gemini's implicit + out-of-band CachedContent). Skip the
 // whole policy pass for these — emitting hints would be harmless but pointless.
 const RESPECTS_INLINE_HINTS = new Set([
+  "alibaba-chat",
  "alibaba-messages",
  "anthropic-messages",
  "anthropic-compatible-messages",
@@ -55,11 +56,12 @@ const RESPECTS_INLINE_HINTS = new Set([
 // OpenRouter upstreams other than Anthropic and Alibaba Qwen cache without breakpoints. Gemini uses only the last
 // breakpoint, so a conversation-tail breakpoint writes a new cache every step and costs more than none. Qwen ignores
 // breakpoints on tool definitions and caches tools with the system prompt.
+const QWEN: CachePolicyObject = { system: true, messages: { tail: 1 } }
 const openRouterPolicy = (modelID: string): CachePolicyObject => {
  // `~anthropic/claude-sonnet-latest` style IDs are OpenRouter aliases for the latest model in a family.
  const id = modelID.replace(/^~/, "")
  if (id.startsWith("anthropic/")) return AUTO
-  if (id.startsWith("qwen/")) return { system: true, messages: { tail: 1 } }
+  if (id.startsWith("qwen/")) return QWEN
  return NONE
 }

@@ -171,7 +173,11 @@ export const applyCachePolicy = (request: LLMRequest): LLMRequest => {
  const policy =
    request.model.route.id === "openrouter" && (request.cache === undefined || request.cache === "auto")
      ? openRouterPolicy(request.model.id)
-      : resolve(request.cache)
+      : request.model.route.id === "alibaba-chat" && (request.cache === undefined || request.cache === "auto")
+        ? request.model.id.toLowerCase().startsWith("qwen")
+          ? QWEN
+          : NONE
+        : resolve(request.cache)
  if (!policy.tools && !policy.system && !policy.messages) return request

  const hint = makeHint(policy.ttlSeconds)
@@ -3,6 +3,7 @@ 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 { cacheControl } from "./utils/cache.js"
 import { OpenResponsesOptions } from "./utils/open-responses-options.js"

 export type ReasoningEffort = OpenResponsesOptions.ReasoningEffort
@@ -68,7 +69,7 @@ export const protocol = Protocol.make({
    from: Effect.fn("AlibabaChat.fromRequest")(function* (req) {
      const opts = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))(req.providerOptions ?? {})
      return {
-        ...(yield* OpenAIChat.protocol.body.from(req)),
+        ...(yield* OpenAIChat.fromRequest(req, { cacheControl: cacheControl() })),
        enable_thinking: opts.enableThinking,
        // Alibaba also rejects an explicit budget that is not below `max_completion_tokens`.
        thinking_budget:
@@ -1,7 +1,7 @@
 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 { JsonObject, ProviderShared } from "./shared.js"
 import { OpenResponsesOptions } from "./utils/open-responses-options.js"
 import { ResponsesHostedTools } from "./utils/responses-hosted-tools.js"

@@ -25,8 +25,6 @@ const WebExtractorItem = Schema.StructWithRest(
 )
 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,
@@ -52,7 +50,7 @@ export const protocol = Protocol.make({
      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))({
+      return {
        ...body,
        enable_thinking: opts.enableThinking,
        previous_response_id: opts.previousResponseId,
@@ -62,7 +60,7 @@ export const protocol = Protocol.make({
          typeof choice === "object" && choice.type === "function"
            ? { type: "allowed_tools" as const, mode: "required" as const, tools: [choice] }
            : choice,
-      })
+      }
    }),
  },
  stream: {
@@ -0,0 +1,334 @@
+import { Effect, Schema } from "effect"
+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 { LLMEvent, Usage, type FinishReasonDetails, type LLMRequest } from "../schema/index.js"
+import { ProviderShared } from "./shared.js"
+import { Lifecycle } from "./utils/lifecycle.js"
+import { ToolStream } from "./utils/tool-stream.js"
+
+const ADAPTER = "cohere-chat"
+export const DEFAULT_BASE_URL = "https://api.cohere.com/v2"
+
+const Options = Schema.Struct({
+  thinking: Schema.optional(
+    Schema.Struct({
+      type: Schema.optional(Schema.Literals(["enabled", "disabled"])),
+      tokenBudget: Schema.optional(Schema.Int.check(Schema.isGreaterThan(0))),
+    }),
+  ),
+})
+export type ProviderOptionsInput = Schema.Schema.Type<typeof Options>
+
+const Content = Schema.Union([
+  Schema.Struct({ type: Schema.Literal("text"), text: Schema.String }),
+  Schema.Struct({ type: Schema.Literal("thinking"), thinking: Schema.String }),
+  Schema.Struct({ type: Schema.Literal("image_url"), image_url: Schema.Struct({ url: Schema.String }) }),
+])
+const ToolCall = Schema.Struct({
+  id: Schema.String,
+  type: Schema.Literal("function"),
+  function: Schema.Struct({ name: Schema.String, arguments: Schema.String }),
+})
+const Message = Schema.Struct({
+  role: Schema.Literals(["system", "user", "assistant", "tool"]),
+  content: Schema.optional(Schema.Union([Schema.String, Schema.Array(Content)])),
+  tool_calls: Schema.optional(Schema.Array(ToolCall)),
+  tool_call_id: Schema.optional(Schema.String),
+  tool_plan: Schema.optional(Schema.String),
+})
+const Body = Schema.Struct({
+  model: Schema.String,
+  messages: Schema.Array(Message),
+  stream: Schema.Literal(true),
+  tools: Schema.optional(
+    Schema.Array(
+      Schema.Struct({
+        type: Schema.Literal("function"),
+        function: Schema.Struct({
+          name: Schema.String,
+          description: Schema.optional(Schema.String),
+          parameters: Schema.Unknown,
+        }),
+      }),
+    ),
+  ),
+  tool_choice: Schema.optional(Schema.Literals(["NONE", "REQUIRED"])),
+  thinking: Schema.optional(Schema.Struct({ type: Schema.String, token_budget: Schema.optional(Schema.Number) })),
+  max_tokens: Schema.optional(Schema.Number),
+  temperature: Schema.optional(Schema.Number),
+  p: Schema.optional(Schema.Number),
+  k: Schema.optional(Schema.Number),
+  seed: Schema.optional(Schema.Number),
+  stop_sequences: Schema.optional(Schema.Array(Schema.String)),
+  frequency_penalty: Schema.optional(Schema.Number),
+  presence_penalty: Schema.optional(Schema.Number),
+})
+const TokenCounts = Schema.Struct({
+  input_tokens: Schema.optional(Schema.Number),
+  output_tokens: Schema.optional(Schema.Number),
+  reasoning_tokens: Schema.optional(Schema.Number),
+})
+const NativeUsage = Schema.Struct({
+  tokens: Schema.optional(TokenCounts),
+  billed_units: Schema.optional(TokenCounts),
+  cached_tokens: Schema.optional(Schema.Number),
+})
+const Event = Schema.Union([
+  Schema.Struct({ type: Schema.Literal("message-start") }),
+  Schema.Struct({
+    type: Schema.Literals(["content-start", "content-delta"]),
+    index: Schema.Number,
+    delta: Schema.Struct({
+      message: Schema.Struct({
+        content: Schema.Struct({ text: Schema.optional(Schema.String), thinking: Schema.optional(Schema.String) }),
+      }),
+    }),
+  }),
+  Schema.Struct({ type: Schema.Literal("content-end"), index: Schema.Number }),
+  Schema.Struct({
+    type: Schema.Literal("tool-plan-delta"),
+    delta: Schema.Struct({ message: Schema.Struct({ tool_plan: Schema.String }) }),
+  }),
+  Schema.Struct({
+    type: Schema.Literals(["tool-call-start", "tool-call-delta"]),
+    index: Schema.Number,
+    delta: Schema.Struct({
+      message: Schema.Struct({
+        tool_calls: Schema.Struct({
+          id: Schema.optional(Schema.String),
+          function: Schema.Struct({ name: Schema.optional(Schema.String), arguments: Schema.optional(Schema.String) }),
+        }),
+      }),
+    }),
+  }),
+  Schema.Struct({ type: Schema.Literal("tool-call-end"), index: Schema.Number }),
+  Schema.Struct({
+    type: Schema.Literal("message-end"),
+    delta: Schema.Struct({ finish_reason: Schema.String, usage: Schema.optional(NativeUsage) }),
+  }),
+  // Citation output is outside this basic chat surface.
+  Schema.Struct({ type: Schema.Literals(["citation-start", "citation-end"]) }),
+])
+type Event = typeof Event.Type
+type State = {
+  readonly lifecycle: Lifecycle.State
+  readonly tools: ToolStream.State<number>
+  readonly finished: boolean
+}
+
+const TOOL_CHOICE = { auto: undefined, none: "NONE", required: "REQUIRED", tool: "REQUIRED" } as const
+
+const fromRequest = Effect.fn("CohereChat.fromRequest")(function* (request: LLMRequest) {
+  const options = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))(request.providerOptions ?? {})
+  const flattened = ProviderShared.flattenToolRequest(request)
+  const messages: (typeof Message.Type)[] = request.system.length
+    ? [
+        {
+          role: "system",
+          content:
+            request.system.length === 1
+              ? request.system[0].text
+              : request.system.map((part) => ({ type: "text", text: part.text })),
+        },
+      ]
+    : []
+  for (const message of flattened.request.messages) {
+    if (message.role === "system") {
+      messages.push({ role: "user", content: (yield* ProviderShared.wrappedSystemUpdate("Cohere Chat", message)).text })
+      continue
+    }
+    if (message.role === "tool") {
+      for (const part of message.content) {
+        if (part.type !== "tool-result")
+          return yield* ProviderShared.unsupportedContent("Cohere Chat", "tool", ["tool-result"])
+        if (part.result.type === "content" && part.result.value.some((item) => item.type === "file"))
+          return yield* ProviderShared.invalidRequest("Cohere Chat does not support file content in tool results")
+        messages.push({ role: "tool", tool_call_id: part.id, content: ProviderShared.toolResultText(part) })
+      }
+      continue
+    }
+    const content: (typeof Content.Type)[] = []
+    const calls: (typeof ToolCall.Type)[] = []
+    const plans: string[] = []
+    for (const part of message.content) {
+      if (part.type === "text") {
+        content.push({ type: "text", text: part.text })
+        continue
+      }
+      if (message.role === "assistant" && part.type === "reasoning") {
+        if (part.providerMetadata?.cohere?.toolPlan === true) plans.push(part.text)
+        else content.push({ type: "thinking", thinking: part.text })
+        continue
+      }
+      if (message.role === "assistant" && part.type === "tool-call") {
+        const args = ProviderShared.encodeJson(part.input)
+        calls.push({ id: part.id, type: "function", function: { name: part.name, arguments: args } })
+        continue
+      }
+      if (message.role === "user" && part.type === "media" && part.media.mediaType.startsWith("image/")) {
+        const url =
+          ProviderShared.mediaUrl(part.media) ??
+          (yield* ProviderShared.requireInlineMedia("Cohere Chat", part.media)).dataUrl
+        content.push({ type: "image_url", image_url: { url } })
+        continue
+      }
+      return yield* ProviderShared.unsupportedContent(
+        "Cohere Chat",
+        message.role,
+        message.role === "user" ? ["text", "media"] : ["text", "reasoning", "tool-call"],
+      )
+    }
+    messages.push({
+      role: message.role,
+      content: content.length ? content : undefined,
+      tool_calls: calls.length ? calls : undefined,
+      tool_plan: plans.length ? plans.join("") : undefined,
+    })
+  }
+  const selected = request.toolChoice?.type === "tool" ? request.toolChoice.name : undefined
+  const tools = selected === undefined ? flattened.tools : flattened.tools.filter((tool) => tool.name === selected)
+  if (selected !== undefined && tools.length === 0)
+    return yield* ProviderShared.invalidRequest("Cohere Chat tool choice must name an available tool")
+  if (tools.some((tool) => tool.native !== undefined))
+    return yield* ProviderShared.invalidRequest("Cohere Chat does not support provider-defined tools")
+  return {
+    model: request.model.id,
+    messages,
+    stream: true as const,
+    tools: tools.length
+      ? tools.map((tool) => ({
+          type: "function" as const,
+          function: { name: tool.name, description: tool.description, parameters: tool.inputSchema },
+        }))
+      : undefined,
+    tool_choice: TOOL_CHOICE[request.toolChoice?.type ?? "auto"],
+    thinking: options.thinking && {
+      type: options.thinking.type ?? "enabled",
+      // Cohere rejects budgets above max_tokens; fitting also leaves room for the answer.
+      token_budget:
+        options.thinking.tokenBudget === undefined
+          ? undefined
+          : ProviderShared.fitThinkingBudget(options.thinking.tokenBudget, request.generation?.maxTokens),
+    },
+    max_tokens: request.generation?.maxTokens,
+    temperature: request.generation?.temperature,
+    p: request.generation?.topP,
+    k: request.generation?.topK,
+    seed: request.generation?.seed,
+    stop_sequences: request.generation?.stop,
+    frequency_penalty: request.generation?.frequencyPenalty,
+    presence_penalty: request.generation?.presencePenalty,
+  }
+})
+
+const finishReason = (raw: string): FinishReasonDetails => {
+  switch (raw) {
+    case "COMPLETE":
+    case "STOP_SEQUENCE":
+      return { normalized: "stop", raw }
+    case "MAX_TOKENS":
+      return { normalized: "length", raw }
+    case "TOOL_CALL":
+      return { normalized: "tool-calls", raw }
+    case "ERROR":
+    case "TIMEOUT":
+      return { normalized: "error", raw }
+    default:
+      return { normalized: "unknown", raw }
+  }
+}
+
+const mapUsage = (usage: typeof NativeUsage.Type) =>
+  new Usage({
+    inputTokens: usage.tokens?.input_tokens,
+    outputTokens: usage.tokens?.output_tokens,
+    nonCachedInputTokens: ProviderShared.subtractTokens(usage.tokens?.input_tokens, usage.cached_tokens),
+    cacheReadInputTokens: usage.cached_tokens,
+    reasoningTokens: usage.tokens?.reasoning_tokens,
+    totalTokens: ProviderShared.totalTokens(usage.tokens?.input_tokens, usage.tokens?.output_tokens, undefined),
+    providerMetadata: { cohere: usage },
+  })
+
+// Lifecycle deltas open blocks on demand and ends are no-ops for closed blocks, so content-start needs no handling.
+const step = Effect.fn("CohereChat.step")(function* (state: State, event: Event) {
+  const events: LLMEvent[] = []
+  switch (event.type) {
+    case "message-start":
+      return [{ ...state, lifecycle: Lifecycle.stepStart(state.lifecycle, events) }, events] as const
+    case "content-delta": {
+      const id = String(event.index)
+      const content = event.delta.message.content
+      const lifecycle =
+        content.thinking !== undefined
+          ? Lifecycle.reasoningDelta(state.lifecycle, events, id, content.thinking)
+          : Lifecycle.textDelta(state.lifecycle, events, id, content.text ?? "")
+      return [{ ...state, lifecycle }, events] as const
+    }
+    case "content-end": {
+      const id = String(event.index)
+      const lifecycle = Lifecycle.textEnd(Lifecycle.reasoningEnd(state.lifecycle, events, id), events, id)
+      return [{ ...state, lifecycle }, events] as const
+    }
+    case "tool-plan-delta": {
+      const plan = event.delta.message.tool_plan
+      const lifecycle = Lifecycle.reasoningDelta(state.lifecycle, events, "tool-plan", plan, {
+        cohere: { toolPlan: true },
+      })
+      return [{ ...state, lifecycle }, events] as const
+    }
+    case "tool-call-start":
+    case "tool-call-delta": {
+      const call = event.delta.message.tool_calls
+      const result = ToolStream.appendOrStart(
+        ADAPTER,
+        state.tools,
+        event.index,
+        { id: call.id, name: call.function.name, text: call.function.arguments ?? "" },
+        "Cohere tool call is missing id or name",
+      )
+      if (ToolStream.isError(result)) return yield* result
+      return [{ ...state, tools: result.tools }, result.events] as const
+    }
+    case "tool-call-end": {
+      const result = yield* ToolStream.finish(ADAPTER, state.tools, event.index)
+      return [{ ...state, tools: result.tools }, result.events ?? []] as const
+    }
+    case "message-end": {
+      const pending = yield* ToolStream.finishAll(ADAPTER, state.tools)
+      events.push(...pending.events)
+      const lifecycle = Lifecycle.finish(state.lifecycle, events, {
+        reason: finishReason(event.delta.finish_reason),
+        usage: event.delta.usage && mapUsage(event.delta.usage),
+      })
+      return [{ tools: pending.tools, lifecycle, finished: true }, events] as const
+    }
+    default:
+      return [state, events] as const
+  }
+})
+
+export const protocol = Protocol.make({
+  id: ADAPTER,
+  body: { schema: Body, from: fromRequest },
+  stream: {
+    event: Protocol.jsonEvent(Event),
+    initial: (): State => ({ lifecycle: Lifecycle.initial(), tools: ToolStream.empty(), finished: false }),
+    step,
+    terminal: (event) => event.type === "message-end",
+    onHalt: (state) =>
+      state.finished
+        ? Effect.succeed([])
+        : Effect.fail(ProviderShared.eventError(ADAPTER, "Cohere stream ended without message-end")),
+  },
+})
+export const route = Route.make({
+  id: ADAPTER,
+  provider: "cohere",
+  providerMetadataKey: "cohere",
+  protocol,
+  endpoint: Endpoint.path("/chat", { baseURL: DEFAULT_BASE_URL }),
+  framing: Framing.sse,
+})
+export * as CohereChat from "./cohere-chat.js"
@@ -475,7 +475,7 @@ const fromRequest = Effect.fn("Gemini.fromRequest")(function* (request: LLMReque
    safetySettings: options.safetySettings,
    serviceTier: options.serviceTier,
    systemInstruction:
-      request.system.length === 0 ? undefined : { parts: [{ text: ProviderShared.joinText(request.system) }] },
+      request.system.length === 0 ? undefined : { parts: request.system.map((part) => ({ text: part.text })) },
    tools: hasTools
      ? [
          {
@@ -0,0 +1,561 @@
+import { Effect, Schema } from "effect"
+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 {
+  AIError,
+  LLMEvent,
+  ProviderID,
+  Usage,
+  type LLMRequest,
+  type ProviderMetadata,
+  type ToolResultPart,
+} from "../schema/index.js"
+import { Media } from "../media.js"
+import { classifyProviderFailure, providerErrorMessage } from "../provider-error.js"
+import { encodeJson } from "../utils/json.js"
+import { JsonObject, knownString, lenient, optionalNull, ProviderShared } from "./shared.js"
+import { Lifecycle } from "./utils/lifecycle.js"
+import { MediaInput } from "./utils/media-input.js"
+import { ToolStream } from "./utils/tool-stream.js"
+
+const ADAPTER = "google-interactions"
+export const DEFAULT_BASE_URL = "https://generativelanguage.googleapis.com/v1beta"
+
+// =============================================================================
+// Public Model Input
+// =============================================================================
+const ThinkingLevel = knownString<"minimal" | "low" | "medium" | "high">()
+const Options = Schema.Struct({
+  previousInteractionId: lenient(Schema.String),
+  store: lenient(Schema.Boolean),
+  thinkingLevel: lenient(ThinkingLevel),
+  thinkingSummaries: lenient(knownString<"auto" | "none">()),
+  serviceTier: lenient(knownString<"standard" | "flex" | "priority">()),
+})
+export type OptionsInput = typeof Options.Encoded
+export type ProviderOptionsInput = OptionsInput
+const decodeOptions = ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))
+
+// =============================================================================
+// Request Body Schema
+// =============================================================================
+const Text = Schema.Struct({ type: Schema.Literal("text"), text: Schema.String })
+const MediaContent = Schema.Struct({
+  type: Schema.Literals(["image", "audio", "video", "document"]),
+  data: Schema.optional(Schema.String),
+  uri: Schema.optional(Schema.String),
+  mime_type: Schema.String,
+})
+const Content = Schema.Union([Text, MediaContent])
+const InputStep = Schema.Union([
+  Schema.Struct({ type: Schema.Literals(["user_input", "model_output"]), content: Schema.Array(Content) }),
+  Schema.Struct({
+    type: Schema.Literal("thought"),
+    signature: Schema.optional(Schema.String),
+    summary: Schema.optional(Schema.Array(Text)),
+  }),
+  Schema.Struct({
+    type: Schema.Literal("function_call"),
+    id: Schema.String,
+    name: Schema.String,
+    arguments: Schema.Unknown,
+    signature: Schema.optional(Schema.String),
+  }),
+  Schema.Struct({
+    type: Schema.Literal("function_result"),
+    call_id: Schema.String,
+    name: Schema.String,
+    result: Schema.Unknown,
+    is_error: Schema.optional(Schema.Boolean),
+  }),
+])
+type InputStep = typeof InputStep.Type
+const ToolChoice = Schema.Union([
+  Schema.Literals(["auto", "any", "none"]),
+  Schema.Struct({ allowed_tools: Schema.Struct({ mode: Schema.Literal("any"), tools: Schema.Array(Schema.String) }) }),
+])
+const Body = Schema.Struct({
+  model: Schema.String,
+  input: Schema.Array(InputStep),
+  stream: Schema.Literal(true),
+  store: Schema.Boolean,
+  previous_interaction_id: Schema.optional(Schema.String),
+  system_instruction: Schema.optional(Schema.String),
+  service_tier: Schema.optional(Schema.String),
+  tools: Schema.optional(
+    Schema.Array(
+      Schema.Struct({
+        type: Schema.Literal("function"),
+        name: Schema.String,
+        description: Schema.String,
+        parameters: JsonObject,
+      }),
+    ),
+  ),
+  generation_config: Schema.Struct({
+    max_output_tokens: Schema.optional(Schema.Number),
+    temperature: Schema.optional(Schema.Number),
+    top_p: Schema.optional(Schema.Number),
+    seed: Schema.optional(Schema.Number),
+    stop_sequences: Schema.optional(Schema.Array(Schema.String)),
+    thinking_level: Schema.optional(ThinkingLevel),
+    thinking_summaries: Schema.optional(Schema.String),
+    tool_choice: Schema.optional(ToolChoice),
+  }),
+})
+
+// =============================================================================
+// Streaming Event Schema
+// =============================================================================
+const RawUsage = Schema.StructWithRest(
+  Schema.Struct({
+    total_input_tokens: optionalNull(Schema.Number),
+    total_cached_tokens: optionalNull(Schema.Number),
+    total_output_tokens: optionalNull(Schema.Number),
+    total_thought_tokens: optionalNull(Schema.Number),
+    total_tokens: optionalNull(Schema.Number),
+    raw_prompt_token: optionalNull(Schema.Number),
+  }),
+  [Schema.Record(Schema.String, Schema.Unknown)],
+)
+type RawUsage = typeof RawUsage.Type
+const OutputStep = Schema.Struct({
+  type: Schema.String,
+  id: Schema.optional(Schema.String),
+  name: Schema.optional(Schema.String),
+  arguments: Schema.optional(JsonObject),
+  signature: Schema.optional(Schema.String),
+  summary: Schema.optional(Schema.Array(Text)),
+  content: Schema.optional(Schema.Array(Schema.Struct({ type: Schema.String, text: Schema.optional(Schema.String) }))),
+})
+type OutputStep = typeof OutputStep.Type
+const Delta = Schema.Union([
+  Schema.Struct({ type: Schema.Literal("text"), text: Schema.String }),
+  Schema.Struct({ type: Schema.Literal("arguments_delta"), arguments: Schema.String }),
+  Schema.Struct({ type: Schema.Literal("thought_signature"), signature: Schema.String }),
+  Schema.Struct({ type: Schema.Literal("thought_summary"), content: Text }),
+  // Unknown output modalities must fail explicitly rather than disappearing from a successful response.
+  Schema.Struct({ type: Schema.String }),
+])
+const Interaction = Schema.StructWithRest(
+  Schema.Struct({
+    id: Schema.optional(Schema.String),
+    status: Schema.String,
+    usage: Schema.optional(RawUsage),
+  }),
+  [Schema.Record(Schema.String, Schema.Unknown)],
+)
+const Event = Schema.Union([
+  Schema.Struct({ event_type: Schema.Literal("step.start"), index: Schema.Number, step: OutputStep }),
+  Schema.Struct({ event_type: Schema.Literal("step.delta"), index: Schema.Number, delta: Delta }),
+  Schema.Struct({ event_type: Schema.Literal("step.stop"), index: Schema.Number }),
+  Schema.Struct({
+    event_type: Schema.Literal("interaction.created"),
+    interaction: Schema.Struct({ id: Schema.optional(Schema.String) }),
+  }),
+  Schema.Struct({
+    event_type: Schema.Literal("interaction.status_update"),
+    interaction_id: Schema.optional(Schema.String),
+    status: Schema.String,
+  }),
+  Schema.Struct({ event_type: Schema.Literal("interaction.completed"), interaction: Interaction }),
+  Schema.Struct({ event_type: Schema.Literal("error"), error: Schema.Unknown }),
+])
+type Event = typeof Event.Type
+
+// =============================================================================
+// Parser State
+// =============================================================================
+interface ParserState {
+  readonly route: string
+  readonly metadataKey: string
+  readonly lifecycle: Lifecycle.State
+  readonly steps: Partial<Record<number, OutputStep>>
+  readonly tools: ToolStream.State<number>
+  readonly completed: boolean
+}
+type StepResult = readonly [ParserState, ReadonlyArray<LLMEvent>]
+
+// =============================================================================
+// Request Body Construction
+// =============================================================================
+const mediaContent = Effect.fn("GoogleInteractions.mediaContent")(function* (asset: Media.Asset) {
+  if (
+    asset.kind !== "image" &&
+    asset.kind !== "audio" &&
+    asset.kind !== "video" &&
+    asset.mediaType !== "application/pdf" &&
+    asset.mediaType !== "text/csv"
+  )
+    return yield* ProviderShared.invalidRequest(
+      `Google Interactions does not support ${asset.mediaType} document input`,
+    )
+  const type: (typeof MediaContent.Type)["type"] =
+    asset.kind === "image" || asset.kind === "audio" || asset.kind === "video" ? asset.kind : "document"
+  const uri = MediaInput.refID(asset, ProviderID.make("google"))
+  if (uri !== undefined) return { type, uri, mime_type: asset.mediaType }
+  const inline = yield* ProviderShared.requireInlineMedia("Google Interactions", asset)
+  return { type, data: inline.base64, mime_type: inline.mime }
+})
+
+const signature = (metadata: ProviderMetadata | undefined, key: string) => {
+  const value = metadata?.[key]
+  return ProviderShared.isRecord(value) && typeof value.interactionSignature === "string"
+    ? value.interactionSignature
+    : undefined
+}
+
+const lowerMessages = Effect.fn("GoogleInteractions.lowerMessages")(function* (request: LLMRequest) {
+  const steps: InputStep[] = []
+  const key = request.model.route.providerMetadataKey ?? String(request.model.provider)
+  for (const message of request.messages) {
+    if (message.role === "system") {
+      const part = yield* ProviderShared.wrappedSystemUpdate("Google Interactions", message)
+      steps.push({ type: "user_input", content: [{ type: "text", text: part.text }] })
+      continue
+    }
+    const start = steps.length
+    // Consecutive ordinary content remains one native message; tools and thoughts retain their chronology.
+    const append = (content: typeof Content.Type) => {
+      const type = message.role === "assistant" ? "model_output" : "user_input"
+      const last = steps.at(-1)
+      if (steps.length > start && last?.type === type)
+        steps[steps.length - 1] = { type, content: [...last.content, content] }
+      else steps.push({ type, content: [content] })
+    }
+    for (const part of message.content) {
+      if (message.role === "tool") {
+        if (part.type !== "tool-result")
+          return yield* ProviderShared.unsupportedContent(ADAPTER, "tool", ["tool-result"])
+        steps.push({
+          type: "function_result",
+          call_id: part.id,
+          name: part.name,
+          result: yield* lowerToolResult(part),
+          is_error: part.result.type === "error" || undefined,
+        })
+        continue
+      }
+      if (part.type === "text") {
+        append({ type: "text", text: part.text })
+        continue
+      }
+      if (part.type === "media") {
+        append(yield* mediaContent(part.media))
+        continue
+      }
+      if (message.role === "assistant" && part.type === "reasoning") {
+        steps.push({
+          type: "thought",
+          signature: signature(part.providerMetadata, key),
+          summary: part.text ? [{ type: "text", text: part.text }] : undefined,
+        })
+        continue
+      }
+      if (message.role === "assistant" && part.type === "tool-call") {
+        steps.push({
+          type: "function_call",
+          id: part.id,
+          name: part.name,
+          arguments: part.input,
+          signature: signature(part.providerMetadata, key),
+        })
+        continue
+      }
+      return yield* ProviderShared.unsupportedContent(
+        ADAPTER,
+        message.role,
+        message.role === "user" ? ["text", "media"] : ["text", "media", "reasoning", "tool-call"],
+      )
+    }
+  }
+  return steps
+})
+
+const lowerToolResult = Effect.fn("GoogleInteractions.lowerToolResult")(function* (part: ToolResultPart) {
+  if (part.result.type === "json" && ProviderShared.isRecord(part.result.value)) return part.result.value
+  if (part.result.type !== "content") return ProviderShared.toolResultText(part)
+
+  return yield* Effect.forEach(part.result.value, (item): Effect.Effect<typeof Content.Type, AIError> => {
+    if (item.type === "text") return Effect.succeed({ type: "text", text: item.text })
+    return mediaContent(ProviderShared.toolFileMedia(item).media)
+  })
+})
+
+const fromRequest = Effect.fn("GoogleInteractions.fromRequest")(function* (request: LLMRequest) {
+  const options = yield* decodeOptions(request.providerOptions ?? {})
+  const flattened = ProviderShared.flattenToolRequest(request)
+  if (flattened.tools.some((tool) => tool.native !== undefined))
+    return yield* ProviderShared.invalidRequest("Google Interactions hosted tools are not supported")
+  if (
+    request.generation?.topK !== undefined ||
+    request.generation?.frequencyPenalty !== undefined ||
+    request.generation?.presencePenalty !== undefined
+  )
+    return yield* ProviderShared.invalidRequest(
+      "Google Interactions does not support topK, frequencyPenalty, or presencePenalty",
+    )
+  const choice =
+    request.toolChoice === undefined
+      ? undefined
+      : yield* ProviderShared.matchToolChoice(ADAPTER, request.toolChoice, {
+          auto: () => "auto" as const,
+          none: () => "none" as const,
+          required: () => "any" as const,
+          tool: (name) => ({ allowed_tools: { mode: "any" as const, tools: [name] } }),
+        })
+  return {
+    model: request.model.id,
+    input: yield* lowerMessages(flattened.request),
+    stream: true as const,
+    // Full-history replay need not create retained provider resources. Continuation callers opt in to storage.
+    store: options.store ?? false,
+    previous_interaction_id: options.previousInteractionId,
+    system_instruction: request.system.length ? ProviderShared.joinText(request.system) : undefined,
+    service_tier: options.serviceTier,
+    tools: flattened.tools.length
+      ? flattened.tools.map((tool) => ({
+          type: "function" as const,
+          name: tool.name,
+          description: tool.description,
+          parameters: tool.inputSchema,
+        }))
+      : undefined,
+    generation_config: {
+      max_output_tokens: request.generation?.maxTokens,
+      temperature: request.generation?.temperature,
+      top_p: request.generation?.topP,
+      seed: request.generation?.seed,
+      stop_sequences: request.generation?.stop,
+      thinking_level: options.thinkingLevel,
+      thinking_summaries: options.thinkingSummaries,
+      tool_choice: choice,
+    },
+  }
+})
+
+// =============================================================================
+// Stream Parsing
+// =============================================================================
+const metadata = (state: ParserState, step: OutputStep): ProviderMetadata => ({
+  [state.metadataKey]: { interactionSignature: step.signature },
+})
+const mapUsage = (usage: RawUsage | undefined, key: string) => {
+  if (!usage) return undefined
+  const input = usage.total_input_tokens ?? undefined
+  const cached = usage.total_cached_tokens ?? undefined
+  const reasoning = usage.total_thought_tokens ?? undefined
+  const output =
+    usage.total_output_tokens === undefined || usage.total_output_tokens === null
+      ? undefined
+      : usage.total_output_tokens + (reasoning ?? 0)
+  return new Usage({
+    contextTokens: usage.raw_prompt_token ?? input,
+    inputTokens: input,
+    outputTokens: output,
+    nonCachedInputTokens: ProviderShared.subtractTokens(input, cached),
+    cacheReadInputTokens: cached,
+    reasoningTokens: reasoning,
+    totalTokens: usage.total_tokens ?? undefined,
+    providerMetadata: { [key]: usage },
+  })
+}
+
+const onStart = Effect.fn("GoogleInteractions.onStart")(function* (
+  state: ParserState,
+  index: number,
+  step: OutputStep,
+) {
+  const events: LLMEvent[] = []
+  let lifecycle = Lifecycle.stepStart(state.lifecycle, events)
+  let tools = state.tools
+  const id = String(index)
+  if (step.type === "thought") {
+    lifecycle = Lifecycle.reasoningStart(lifecycle, events, id, metadata(state, step))
+    for (const part of step.summary ?? []) lifecycle = Lifecycle.reasoningDelta(lifecycle, events, id, part.text)
+  } else if (step.type === "model_output") {
+    lifecycle = Lifecycle.textStart(lifecycle, events, id)
+    for (const part of step.content ?? []) {
+      if (part.type !== "text")
+        return yield* ProviderShared.eventError(
+          ADAPTER,
+          `Unsupported Interactions output: ${part.type}`,
+          encodeJson(step),
+        )
+      if (part.text) lifecycle = Lifecycle.textDelta(lifecycle, events, id, part.text)
+    }
+  } else if (step.type === "function_call") {
+    if (!step.id || !step.name)
+      return yield* ProviderShared.eventError(ADAPTER, "Interactions function call lacks id or name", encodeJson(step))
+    tools = ToolStream.start(tools, index, {
+      id: step.id,
+      name: step.name,
+      providerMetadata: metadata(state, step),
+      input: step.arguments && Object.keys(step.arguments).length ? encodeJson(step.arguments) : "",
+    })
+    events.push(LLMEvent.toolInputStart({ id: step.id, name: step.name, providerMetadata: metadata(state, step) }))
+  } else
+    return yield* ProviderShared.eventError(ADAPTER, `Unsupported Interactions step: ${step.type}`, encodeJson(step))
+  return [{ ...state, lifecycle, tools, steps: { ...state.steps, [index]: step } }, events] satisfies StepResult
+})
+
+const onDelta = Effect.fn("GoogleInteractions.onDelta")(function* (
+  state: ParserState,
+  index: number,
+  delta: typeof Delta.Type,
+) {
+  const step = state.steps[index]
+  if (!step)
+    return yield* ProviderShared.eventError(ADAPTER, "Interactions delta without step.start", encodeJson(delta))
+  const events: LLMEvent[] = []
+  if (delta.type === "text" && "text" in delta && step.type === "model_output")
+    return [
+      { ...state, lifecycle: Lifecycle.textDelta(state.lifecycle, events, String(index), delta.text) },
+      events,
+    ] satisfies StepResult
+  if (delta.type === "thought_summary" && "content" in delta && step.type === "thought")
+    return [
+      { ...state, lifecycle: Lifecycle.reasoningDelta(state.lifecycle, events, String(index), delta.content.text) },
+      events,
+    ] satisfies StepResult
+  if (delta.type === "thought_signature" && "signature" in delta) {
+    const next = { ...step, signature: delta.signature }
+    const tool = state.tools[index]
+    return [
+      {
+        ...state,
+        steps: { ...state.steps, [index]: next },
+        tools: tool ? { ...state.tools, [index]: { ...tool, providerMetadata: metadata(state, next) } } : state.tools,
+      },
+      events,
+    ] satisfies StepResult
+  }
+  if (delta.type === "arguments_delta" && "arguments" in delta && step.type === "function_call") {
+    const result = ToolStream.appendExisting(
+      ADAPTER,
+      state.tools,
+      index,
+      delta.arguments,
+      "Interactions arguments without function call",
+    )
+    if (ToolStream.isError(result)) return yield* result
+    return [{ ...state, tools: result.tools }, result.events] satisfies StepResult
+  }
+  return yield* ProviderShared.eventError(ADAPTER, `Unsupported Interactions delta: ${delta.type}`, encodeJson(delta))
+})
+
+const onStop = Effect.fn("GoogleInteractions.onStop")(function* (state: ParserState, index: number) {
+  const step = state.steps[index]
+  if (!step) return yield* ProviderShared.eventError(ADAPTER, "Interactions step.stop without step.start")
+  const events: LLMEvent[] = []
+  if (step.type === "thought")
+    return [
+      { ...state, lifecycle: Lifecycle.reasoningEnd(state.lifecycle, events, String(index), metadata(state, step)) },
+      events,
+    ] satisfies StepResult
+  if (step.type === "model_output")
+    return [
+      { ...state, lifecycle: Lifecycle.textEnd(state.lifecycle, events, String(index)) },
+      events,
+    ] satisfies StepResult
+  const result = yield* ToolStream.finish(ADAPTER, state.tools, index)
+  return [{ ...state, tools: result.tools }, result.events ?? []] satisfies StepResult
+})
+
+const step = Effect.fn("GoogleInteractions.step")(function* (state: ParserState, event: Event) {
+  switch (event.event_type) {
+    case "step.start":
+      return yield* onStart(state, event.index, event.step)
+    case "step.delta":
+      return yield* onDelta(state, event.index, event.delta)
+    case "step.stop":
+      return yield* onStop(state, event.index)
+    case "interaction.created":
+    case "interaction.status_update":
+      return [state, []] satisfies StepResult
+    case "error":
+      return yield* new AIError({
+        reason: classifyProviderFailure({
+          message: providerErrorMessage(encodeJson(event)) ?? "Google Interactions stream error",
+          data: event.error,
+          rawBody: encodeJson(event),
+        }),
+      })
+    case "interaction.completed": {
+      const interaction = event.interaction
+      if (interaction.status === "failed" || interaction.status === "cancelled")
+        return yield* new AIError({
+          reason: classifyProviderFailure({
+            message: `Google Interactions ${interaction.status}`,
+            data: interaction,
+            rawBody: encodeJson(event),
+          }),
+        })
+      if (!["completed", "requires_action", "incomplete"].includes(interaction.status))
+        return yield* ProviderShared.eventError(
+          ADAPTER,
+          `Unexpected terminal Interactions status: ${interaction.status}`,
+          encodeJson(event),
+        )
+      const pending = yield* ToolStream.finishAll(ADAPTER, state.tools)
+      const events = [...pending.events]
+      const lifecycle = Lifecycle.finish(state.lifecycle, events, {
+        reason: {
+          normalized:
+            interaction.status === "requires_action"
+              ? "tool-calls"
+              : interaction.status === "incomplete"
+                ? "length"
+                : "stop",
+          raw: interaction.status,
+        },
+        usage: mapUsage(interaction.usage, state.metadataKey),
+        providerMetadata: { [state.metadataKey]: { interactionId: interaction.id } },
+      })
+      return [{ ...state, lifecycle, tools: pending.tools, completed: true }, events] satisfies StepResult
+    }
+  }
+})
+
+// =============================================================================
+// Protocol And Route
+// =============================================================================
+export const protocol = Protocol.make({
+  id: ADAPTER,
+  sanitizer: "gemini",
+  body: { schema: Body, from: fromRequest },
+  stream: {
+    event: Protocol.jsonEvent(Event),
+    initial: (request): ParserState => ({
+      route: `${request.model.provider}/${ADAPTER}`,
+      metadataKey: request.model.route.providerMetadataKey ?? String(request.model.provider),
+      lifecycle: Lifecycle.initial(),
+      steps: {},
+      tools: ToolStream.empty<number>(),
+      completed: false,
+    }),
+    step,
+    terminal: (event) => event.event_type === "interaction.completed",
+    onHalt: (state) =>
+      state.completed
+        ? Effect.succeed([])
+        : Effect.fail(
+            ProviderShared.eventError(ADAPTER, "Google Interactions stream ended before interaction.completed"),
+          ),
+  },
+})
+
+export const route = Route.make({
+  id: ADAPTER,
+  provider: "google",
+  providerMetadataKey: "google",
+  protocol,
+  endpoint: Endpoint.path("/interactions", { baseURL: DEFAULT_BASE_URL }),
+  auth: Auth.none,
+  framing: Framing.sse,
+})
+
+export * as GoogleInteractions from "./google-interactions.js"
@@ -1,6 +1,8 @@
 export * as AnthropicMessages from "./anthropic-messages.js"
 export * as BedrockConverse from "./bedrock-converse.js"
+export * as CohereChat from "./cohere-chat.js"
 export * as Gemini from "./gemini.js"
+export * as GoogleInteractions from "./google-interactions.js"
 export * as MistralChat from "./mistral-chat.js"
 export * as OpenAIChat from "./openai-chat.js"
 export * as OpenAIImages from "./openai-images.js"
@@ -1,6 +1,5 @@
 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"
@@ -44,13 +43,6 @@ const ImageItem = Schema.Struct({
  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) })),
 })
@@ -62,12 +54,13 @@ interface ParserState extends OpenResponses.ParserState {
 const adapter = {
  id: ADAPTER,
  name: NAME,
+  nativeTool: (native) => ProviderShared.validateWith(Schema.decodeUnknownEffect(NativeTool))(native.meta),
  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(
+  return yield* OpenResponses.fromRequestWithAdapter(
    LLMRequest.update(request, {
      messages: request.messages.map((message) =>
        Message.make({
@@ -93,23 +86,8 @@ const fromRequest = Effect.fn("MetaResponses.fromRequest")(function* (request: L
        }),
      ),
    }),
+    adapter,
  )
-  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)
-              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 = {
@@ -222,7 +200,7 @@ const step = Effect.fn("MetaResponses.step")(function* (state: ParserState, inpu

 export const protocol = Protocol.make({
  id: ADAPTER,
-  body: { schema: Body, from: fromRequest },
+  body: { schema: OpenResponses.OpenResponsesBody, from: fromRequest },
  stream: {
    event: OpenResponses.protocol.stream.event,
    initial: (request): ParserState => ({ ...OpenResponses.initial(request, adapter), completedItems: new Set() }),
@@ -231,6 +209,6 @@ export const protocol = Protocol.make({
  },
 })

-export const httpTransport = HttpTransport.sseJson.with<Schema.Schema.Type<typeof Body>>()
+export const httpTransport = OpenResponses.httpTransport

 export * as MetaResponses from "./meta-responses.js"
@@ -68,7 +68,10 @@ const MistralAssistantToolCall = Schema.Struct({
 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("system"),
+    content: Schema.Union([Schema.String, Schema.Array(MistralTextContent)]),
+  }),
  Schema.Struct({
    role: Schema.Literal("user"),
    content: Schema.Union([Schema.String, Schema.Array(MistralUserContent)]),
@@ -335,7 +338,17 @@ const lowerToolResults = Effect.fn("MistralChat.lowerToolResults")(function* (
 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) }]
+    request.system.length === 0
+      ? []
+      : [
+          {
+            role: "system",
+            content:
+              request.system.length === 1
+                ? request.system[0].text
+                : request.system.map((part) => ({ type: "text", text: part.text })),
+          },
+        ]
  for (const message of request.messages) {
    if (message.role === "system") {
      const update = yield* ProviderShared.wrappedSystemUpdate("Mistral Chat", message)
@@ -168,10 +168,20 @@ export const ConfigurationUpdate = Schema.Struct({
  type: Schema.Literal("configuration_update"),
  reasoning: Schema.Struct({ effort: OpenResponsesOptions.ReasoningEffort }),
 })
-type ConfigurationUpdate = Schema.Schema.Type<typeof ConfigurationUpdate>
+export type ConfigurationUpdate = Schema.Schema.Type<typeof ConfigurationUpdate>
+
+export const HostedToolReplay = Schema.StructWithRest(
+  Schema.Struct({
+    type: Schema.String,
+    id: Schema.String,
+  }),
+  [JsonObject],
+)
+export type HostedToolReplayItem = Schema.Schema.Type<typeof HostedToolReplay>

 export const InputItem = Schema.Union([
  CompactionItem,
+  ConfigurationUpdate,
  Schema.Struct({ type: Schema.tag("message"), role: Schema.tag("system"), content: Schema.String }),
  Schema.Struct({ type: Schema.tag("message"), role: Schema.tag("developer"), content: Schema.String }),
  Schema.Struct({
@@ -204,24 +214,9 @@ export const InputItem = Schema.Union([
    output: OpenResponsesFunctionCallOutput,
  }),
  HostedToolItem,
+  HostedToolReplay,
 ])
 type OpenResponsesInputItem = Schema.Schema.Type<typeof InputItem>
-export type HostedToolReplayItem = {
-  readonly type: string
-  readonly id: string
-  readonly [key: string]: unknown
-}
-type LoweredInputItem =
-  | OpenResponsesInputItem
-  | HostedToolReplayItem
-  | ConfigurationUpdate
-  | {
-      readonly type: "message"
-      readonly id?: string
-      readonly role: "assistant"
-      readonly content: ReadonlyArray<{ readonly type: "output_text"; readonly text: string }>
-      readonly phase?: MessagePhase | null
-    }

 // Mutable counterpart of the schema reasoning item so `lowerMessages` can fold
 // multiple streamed summary parts into the same item before flushing.
@@ -239,6 +234,14 @@ export const Tool = Schema.Struct({
  strict: Schema.optional(Schema.Boolean),
 })

+export const HostedTool = Schema.StructWithRest(
+  Schema.Struct({
+    type: Schema.String,
+  }),
+  [JsonObject],
+)
+export type HostedTool = Schema.Schema.Type<typeof HostedTool>
+
 export const ToolChoice = Schema.Union([
  Schema.Literals(["auto", "none", "required"]),
  Schema.Struct({ type: Schema.tag("function"), name: Schema.String }),
@@ -257,7 +260,7 @@ export const coreFields = {
  model: Schema.String,
  input: Schema.Array(InputItem),
  instructions: Schema.optional(Schema.String),
-  tools: optionalArray(Tool),
+  tools: optionalArray(Schema.Union([Tool, HostedTool])),
  tool_choice: Schema.optional(ToolChoice),
  store: Schema.optional(Schema.Boolean),
  metadata: Schema.optional(Schema.Record(Schema.String, Schema.String)),
@@ -292,7 +295,7 @@ export const coreFields = {
  frequency_penalty: Schema.optional(Schema.Number),
 }

-const OpenResponsesBody = Schema.Struct({
+export const OpenResponsesBody = Schema.Struct({
  ...coreFields,
  stream: Schema.Literal(true),
 })
@@ -397,9 +400,7 @@ export const decodeChannelEvent = (frame: string) =>
 export interface ProviderAdapter {
  readonly id: string
  readonly name: string
-  readonly nativeTool?: (
-    native: NonNullable<ToolDefinition["native"]>,
-  ) => Effect.Effect<{ readonly type: string }, AIError>
+  readonly nativeTool?: (native: NonNullable<ToolDefinition["native"]>) => Effect.Effect<HostedTool, AIError>
  readonly lowerMedia?: (input: {
    readonly part: MediaPart
    readonly media: Media.Inline | undefined
@@ -455,8 +456,10 @@ export const lowerTool = Effect.fn("OpenResponses.lowerTool")(function* (protoco
 })

 export const lowerTools = (tools: ReadonlyArray<ToolDefinition>, adapter: ProviderAdapter) =>
-  Effect.forEach(tools, (tool) =>
-    tool.native !== undefined && adapter.nativeTool ? adapter.nativeTool(tool.native) : lowerTool(adapter.name, tool),
+  Effect.forEach(
+    tools,
+    (tool): Effect.Effect<Schema.Schema.Type<typeof Tool> | HostedTool, AIError> =>
+      tool.native !== undefined && adapter.nativeTool ? adapter.nativeTool(tool.native) : lowerTool(adapter.name, tool),
  )

 export const lowerToolChoice = (protocolName: string, toolChoice: NonNullable<LLMRequest["toolChoice"]>) =>
@@ -592,7 +595,7 @@ const lowerMessages = Effect.fn("OpenResponses.lowerMessages")(function* (
  request: LLMRequest,
  adapter: ProviderAdapter,
 ) {
-  const input: LoweredInputItem[] = []
+  const input: OpenResponsesInputItem[] = []
  const providerMetadataKey = metadataKey(request.model)

  for (const message of request.messages) {
@@ -827,11 +830,7 @@ export const fromRequestWithAdapter = Effect.fn("OpenResponses.fromRequestWithAd
  }
 })

-const decodeBody = ProviderShared.validateWith(Schema.decodeUnknownEffect(OpenResponsesBody))
-
-export const fromRequest = Effect.fn("OpenResponses.fromRequest")(function* (request: LLMRequest) {
-  return yield* decodeBody(yield* fromRequestWithAdapter(request, BASE_ADAPTER))
-})
+export const fromRequest = (request: LLMRequest) => fromRequestWithAdapter(request, BASE_ADAPTER)

 // =============================================================================
 // Stream Parsing
@@ -14,7 +14,6 @@ import {
  ProviderInternalError,
  UnknownProviderError,
  Usage,
-  type FinishReason,
  type FinishReasonDetails,
  type CacheHint,
  type LLMRequest,
@@ -46,12 +45,6 @@ const OpenAIChatCacheControl = Schema.Struct({
 })
 type OpenAIChatCacheControl = Schema.Schema.Type<typeof OpenAIChatCacheControl>

-const OpenAIChatFunction = Schema.Struct({
-  name: Schema.String,
-  description: Schema.String,
-  parameters: JsonObject,
-})
-
 const OpenAIChatTool = Schema.Struct({
  type: Schema.tag("function"),
  function: Schema.Struct({
@@ -103,15 +103,8 @@ const OpenAIResponsesToolChoice = Schema.Union([
  Schema.Struct({ type: Schema.tag("image_generation") }),
 ])

-const OpenAIResponsesInputItem = Schema.Union([
-  OpenResponses.InputItem,
-  OpenAIResponsesHostedToolItem,
-  OpenResponses.ConfigurationUpdate,
-])
-
 const OpenAIResponsesCoreFields = {
  ...OpenResponses.coreFields,
-  input: Schema.Array(OpenAIResponsesInputItem),
  tools: optionalArray(OpenAIResponsesTools),
  tool_choice: Schema.optional(OpenAIResponsesToolChoice),
  context_management: Schema.optional(
@@ -134,7 +127,7 @@ export type OpenAIResponsesBody = Schema.Schema.Type<typeof OpenAIResponsesBody>
 export const CompactionTrigger = Schema.Struct({ type: Schema.Literal("compaction_trigger") })
 const CheckpointBody = Schema.Struct({
  ...OpenAIResponsesBody.fields,
-  input: Schema.Array(Schema.Union([OpenAIResponsesInputItem, CompactionTrigger])),
+  input: Schema.Array(Schema.Union([OpenResponses.InputItem, CompactionTrigger])),
 })

 const adapter = {
@@ -202,15 +195,13 @@ const lowerToolChoice = (toolChoice: NonNullable<LLMRequest["toolChoice"]>, tool
        : { type: "function" as const, name },
  })

-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)
-  return yield* decodeBody({
+  return {
    ...(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 })),
@@ -220,7 +211,7 @@ const fromRequest = Effect.fn("OpenAIResponses.fromRequest")(function* (request:
        ? undefined
        : (OpenResponses.allowedToolChoice(request) ??
          (request.toolChoice ? yield* lowerToolChoice(request.toolChoice, request.tools) : undefined)),
-  })
+  }
 })

 const checkpointBody = {
@@ -31,19 +31,12 @@ const XAIResponsesHostedToolItem = Schema.Union([
  ),
 ])

-const XAIResponsesBody = Schema.Struct({
-  ...OpenResponses.coreFields,
-  input: Schema.Array(Schema.Union([OpenResponses.InputItem, XAIResponsesHostedToolItem])),
-  stream: Schema.Literal(true),
-})
-
 const adapter = {
  id: ADAPTER,
  name: NAME,
  restoreHostedToolItem: (item: unknown) => (Schema.is(XAIResponsesHostedToolItem)(item) ? item : undefined),
 } satisfies OpenResponses.ProviderAdapter

-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({
@@ -53,7 +46,7 @@ const fromRequest = Effect.fn("XAIResponses.fromRequest")(function* (request: LL
      message:
        "xAI requires explicit compaction through LLMClient.compact; automatic context management is not supported",
    })
-  return yield* decodeBody(yield* OpenResponses.fromRequestWithAdapter(request, adapter))
+  return yield* OpenResponses.fromRequestWithAdapter(request, adapter)
 })

 const HOSTED_TOOLS = {
@@ -83,7 +76,7 @@ const step = (state: OpenResponses.ParserState, input: OpenResponses.Event) => {
 export const protocol = Protocol.make({
  id: ADAPTER,
  body: {
-    schema: XAIResponsesBody,
+    schema: OpenResponses.OpenResponsesBody,
    from: fromRequest,
  },
  stream: {
@@ -55,7 +55,13 @@ const patterns = [

 const payloadPatterns = [/request entity too large/i, /payload too large/i, /request too large/i]

-const exclusions = [/^(throttling error|service unavailable):/i, /rate limit/i, /too many requests/i]
+const exclusions = [
+  /^(throttling error|service unavailable):/i,
+  /rate limit/i,
+  /too many requests/i,
+  // Cohere reports an output limit above the model maximum as "too many tokens"; compaction cannot fix it.
+  /max[_ ]tokens must be less than/i,
+]

 export const isContextOverflow = (message: string) =>
  !exclusions.some((pattern) => pattern.test(message)) &&
@@ -0,0 +1,66 @@
+import { CohereChat } from "../protocols/cohere-chat.js"
+import { OpenAIChat } from "../protocols/openai-chat.js"
+import { Route, type RouteDefaultsInput } from "../route/client.js"
+import { Endpoint } from "../route/endpoint.js"
+import { AuthOptions, type ProviderAuthOption } from "../route/auth-options.js"
+import { ProviderID, type ModelID, type OpenString } from "../schema/index.js"
+import type { ProviderPackage } from "../provider-package.js"
+
+export const id = ProviderID.make("cohere")
+const COMPATIBILITY_BASE_URL = "https://api.cohere.ai/compatibility/v1"
+export type ChatOptionsInput = { readonly reasoningEffort?: OpenString<"none" | "high"> }
+export type ProviderOptions = CohereChat.ProviderOptionsInput & ChatOptionsInput
+export type LanguageModelOptions = Omit<RouteDefaultsInput, "providerOptions"> &
+  ProviderAuthOption<"optional"> & {
+    readonly baseURL?: string
+    readonly providerOptions?: ProviderOptions
+  }
+export type Settings<Options = CohereChat.ProviderOptionsInput> = ProviderPackage.Settings &
+  Options & { readonly apiKey?: string; readonly baseURL?: string }
+
+export const route = CohereChat.route
+export const chatRoute = Route.make({
+  id: "cohere-chat-completions",
+  provider: id,
+  providerMetadataKey: "cohere",
+  protocol: OpenAIChat.protocol,
+  endpoint: Endpoint.path("/chat/completions", { baseURL: COMPATIBILITY_BASE_URL }),
+  framing: OpenAIChat.framing,
+})
+export const routes = [route, chatRoute]
+
+export const configure = (input: LanguageModelOptions = {}) => {
+  const { apiKey: _apiKey, auth: _auth, baseURL, ...defaults } = input
+  const auth = AuthOptions.bearer(input, "COHERE_API_KEY")
+  const native = route.with({ ...defaults, auth, endpoint: { baseURL: baseURL ?? CohereChat.DEFAULT_BASE_URL } })
+  const chat = chatRoute.with({ ...defaults, auth, endpoint: { baseURL: baseURL ?? COMPATIBILITY_BASE_URL } })
+  return {
+    id,
+    model: (modelID: string | ModelID) => native.model<CohereChat.ProviderOptionsInput>({ id: modelID }),
+    chat: (modelID: string | ModelID) =>
+      chat.model<ChatOptionsInput>({
+        id: modelID,
+        compatibility: {
+          maxTokensField: "max_tokens",
+          supportsStore: false,
+          supportsUsageInStreaming: true,
+          reasoningField: "reasoning_content",
+          supportsStrictMode: false,
+        },
+      }),
+    configure,
+  }
+}
+export const provider = configure()
+export const model: ProviderPackage.Definition<Settings, CohereChat.ProviderOptionsInput>["model"] = (
+  modelID,
+  { apiKey, baseURL, body, headers, ...providerOptions },
+) =>
+  configure({
+    apiKey,
+    baseURL,
+    headers,
+    http: body === undefined ? undefined : { body: { ...body } },
+    providerOptions,
+  }).model(modelID)
+export * as Cohere from "./cohere.js"
@@ -0,0 +1,16 @@
+import type { ProviderPackage } from "../../provider-package.js"
+import { Cohere } from "../cohere.js"
+
+export type Settings = Cohere.Settings<Cohere.ChatOptionsInput>
+
+export const model: ProviderPackage.Definition<Settings, Cohere.ChatOptionsInput>["model"] = (
+  modelID,
+  { apiKey, baseURL, body, headers, ...providerOptions },
+) =>
+  Cohere.configure({
+    apiKey,
+    baseURL,
+    headers,
+    http: body === undefined ? undefined : { body: { ...body } },
+    providerOptions,
+  }).chat(modelID)
@@ -5,6 +5,7 @@ import { MediaRoute } from "../route/media.js"
 import type { ProviderPackage } from "../provider-package.js"
 import { ProviderID, type ModelID } from "../schema/index.js"
 import { Gemini } from "../protocols/gemini.js"
+import { GoogleInteractions } from "../protocols/google-interactions.js"
 import { GoogleImages } from "../protocols/google-images.js"
 import { GoogleSpeech } from "../protocols/google-speech.js"
 import { GoogleTranscription } from "../protocols/google-transcription.js"
@@ -16,15 +17,16 @@ export type { GoogleTranscriptionOptions } from "../protocols/google-transcripti
 export type { GoogleVideoOptions } from "../protocols/google-video.js"
 export type GeminiOptionsInput = Gemini.OptionsInput
 export type GeminiProviderOptionsInput = Gemini.ProviderOptionsInput
+export type GoogleInteractionsOptionsInput = GoogleInteractions.OptionsInput

 export const id = ProviderID.make("google")

-export const routes = [Gemini.route]
+export const routes = [Gemini.route, GoogleInteractions.route]

 export type Config = RouteDefaultsInput &
  ProviderAuthOption<"optional"> & {
    readonly baseURL?: string
-    readonly providerOptions?: Gemini.ProviderOptionsInput
+    readonly providerOptions?: Gemini.ProviderOptionsInput & GoogleInteractions.ProviderOptionsInput
  }

 export type Settings = ProviderPackage.Settings &
@@ -45,12 +47,19 @@ const configuredRoute = (input: Config) => {
  return Gemini.route.with({ ...rest, endpoint: { baseURL }, auth: auth(input) })
 }

+const interactionsRoute = (input: Config) => {
+  const { apiKey: _, auth: _auth, baseURL, ...rest } = input
+  return GoogleInteractions.route.with({ ...rest, endpoint: { baseURL }, auth: auth(input) })
+}
+
 export const configure = (input: Config = {}) => {
  const route = configuredRoute(input)
  const media = MediaRoute.deployment(input, auth(input))
  return {
    id,
    model: (modelID: string | ModelID) => route.model<Gemini.ProviderOptionsInput>({ id: modelID }),
+    interactions: (modelID: string | ModelID) =>
+      interactionsRoute(input).model<GoogleInteractions.ProviderOptionsInput>({ id: modelID }),
    image: (modelID: string | ModelID) => GoogleImages.model({ ...media, id: modelID }),
    video: (modelID: string | ModelID) => GoogleVideo.model({ ...media, id: modelID }),
    speech: (modelID: string | ModelID) => GoogleSpeech.model({ ...media, id: modelID }),
@@ -73,6 +82,7 @@ export const model: ProviderPackage.Definition<Settings, Gemini.ProviderOptionsI
  }).model(modelID)

 export const image = provider.image
+export const interactions = provider.interactions
 export const video = provider.video
 export const speech = provider.speech
 export const transcription = provider.transcription
@@ -0,0 +1,21 @@
+import { configure } from "../google.js"
+import type { ProviderPackage } from "../../provider-package.js"
+import type { GoogleInteractions } from "../../protocols/google-interactions.js"
+
+export type Settings = ProviderPackage.Settings &
+  GoogleInteractions.ProviderOptionsInput & {
+    readonly apiKey?: string
+    readonly baseURL?: string
+  }
+
+export const model: ProviderPackage.Definition<Settings, GoogleInteractions.ProviderOptionsInput>["model"] = (
+  modelID,
+  { apiKey, baseURL, body, headers, ...providerOptions },
+) =>
+  configure({
+    apiKey,
+    baseURL,
+    headers: headers === undefined ? undefined : { ...headers },
+    http: body === undefined ? undefined : { body: { ...body } },
+    providerOptions,
+  }).interactions(modelID)
@@ -9,6 +9,7 @@ export * as Baseten from "./baseten.js"
 export * as BlackForestLabs from "./black-forest-labs.js"
 export * as Cartesia from "./cartesia.js"
 export * as Cerebras from "./cerebras.js"
+export * as Cohere from "./cohere.js"
 export * as CloudflareAIGateway from "./cloudflare-ai-gateway.js"
 export * as CloudflareWorkersAI from "./cloudflare-workers-ai.js"
 export * as DeepInfra from "./deepinfra.js"
@@ -358,7 +358,6 @@ function makeFromTransport<Body, Prepared, Frame, Event, State>(
  input: MakeTransportInput<Body, Prepared, Frame, Event, State>,
 ): Route<Body, Prepared> {
  const protocol = input.protocol
-  const encodeBody = Schema.encodeSync(Schema.fromJsonString(protocol.body.schema))
  const decodeEventEffect = Schema.decodeUnknownEffect(protocol.stream.event)
  const decodeEvent = (route: string) => (frame: Frame) =>
    decodeEventEffect(frame).pipe(
@@ -417,7 +416,7 @@ function makeFromTransport<Body, Prepared, Frame, Event, State>(
          request,
          endpoint: routeInput.endpoint,
          auth: routeInput.auth ?? Auth.none,
-          encodeBody,
+          encodeBody: ProviderShared.encodeJson,
          middleware: options?.http,
          webSocket: options?.webSocket,
        }),
@@ -576,9 +575,7 @@ const compile = Effect.fn("LLM.compile")(function* (request: LLMRequest, options
  const resolved = prepareRequest(request)
  const route = resolved.model.route

-  const body = yield* route.body
-    .from(resolved)
-    .pipe(Effect.flatMap(ProviderShared.validateWith(Schema.decodeUnknownEffect(route.body.schema))))
+  const body = yield* route.body.from(resolved)
  const prepared = yield* route.prepareTransport(body, resolved, options)

  return {
@@ -159,6 +159,15 @@ const nativeTransportFailure = (error: unknown) => {
  return failure
 }

+// HTTP hooks re-wrap response bodies, so a read failure can arrive as an HttpClientError caused by
+// another HttpClientError. The innermost cause carries the native failure.
+const rootCause = (error: unknown): unknown =>
+  HttpClientError.isHttpClientError(error) && "cause" in error.reason && error.reason.cause !== undefined
+    ? rootCause(error.reason.cause)
+    : error
+
+const CONNECTION_LOST = "Connection lost while reading the response"
+
 const httpError = (input: {
  readonly error: unknown
  readonly request: HttpClientRequest.HttpClientRequest
@@ -179,20 +188,21 @@ const httpError = (input: {
      }),
    })

-  const source =
-    HttpClientError.isHttpClientError(input.error) && "cause" in input.error.reason
-      ? (input.error.reason.cause ?? input.error)
-      : input.error
+  const source = rootCause(input.error)
  const native = nativeTransportFailure(source)
  const code = native?.code
-  const raw = native?.message ?? (input.error instanceof Error ? input.error.message : undefined)
-  const detail = raw
-  const message = code && detail && !detail.includes(code) ? `${code}: ${detail}` : detail
+  const detail =
+    code && native?.message && !native.message.includes(code) ? `${code}: ${native.message}` : native?.message
+  const message = detail ?? (input.error instanceof Error ? input.error.message : undefined)

  if (Cause.isTimeoutError(input.error) || Cause.isTimeoutError(source))
    return transportError({ message: message ?? "HTTP transport timed out", code: code ?? "Timeout" })
  if (!HttpClientError.isHttpClientError(input.error))
    return transportError({ message: message ?? "HTTP transport failed", code })
+  // Effect reports every response body read failure as a DecodeError, but the raw byte stream decodes
+  // nothing: provider output parsing happens later and fails as InvalidProviderOutput.
+  if (input.operation === "read" && input.error.reason._tag === "DecodeError")
+    return transportError({ message: detail ? `${CONNECTION_LOST}: ${detail}` : CONNECTION_LOST, code })
  if (input.error.reason._tag === "TransportError") {
    return transportError({
      message: message ?? input.error.reason.description ?? "HTTP transport failed",
@@ -1,11 +1,19 @@
-import { Effect } from "effect"
+import { Clock, Duration, Effect, Stream } from "effect"
 import { Headers, HttpClientRequest } from "effect/unstable/http"
 import { Auth } from "../auth.js"
 import { render as renderEndpoint } from "../endpoint.js"
 import { Framing } from "../framing.js"
 import type { HttpMiddleware, Transport, TransportPrepareInput } from "./index.js"
 import * as ProviderShared from "../../protocols/shared.js"
-import { mergeJsonRecords, type LLMRequest } from "../../schema/index.js"
+import {
+  AIError,
+  DEFAULT_HTTP_TIMEOUT_MS,
+  mergeJsonRecords,
+  TransportError,
+  type HttpContext,
+  type HttpTimeout,
+  type LLMRequest,
+} from "../../schema/index.js"
 import { RequestExecutor } from "../executor.js"

 export type JsonRequestInput<Body> = TransportPrepareInput<Body>
@@ -87,17 +95,53 @@ export const httpJson = <Body, Frame>(input: HttpJsonInput<Body, Frame>): HttpJs
        middleware: prepareInput.middleware,
      }
    }),
-  execute: (prepared, _request, runtime) =>
+  execute: (prepared, request, runtime) =>
    Effect.gen(function* () {
-      const response = yield* runtime.http.execute(prepared.request, prepared.middleware)
+      const timeout = (operation: "request" | "read", message: string, http?: HttpContext) =>
+        new AIError({
+          reason: new TransportError({
+            message,
+            transport: "http",
+            operation,
+            code: "Timeout",
+            url: prepared.request.url,
+            http,
+          }),
+        })
+      const started = yield* Clock.currentTimeMillis
+      // Unlike the header and chunk limits, the whole-request budget has no default.
+      const total = request.http?.timeout ? Duration.millis(request.http.timeout) : Duration.infinity
+      const response = yield* runtime.http.execute(prepared.request, prepared.middleware).pipe(
+        Effect.timeoutOrElse({
+          duration: Duration.min(timeoutDuration(request.http?.headerTimeout), total),
+          orElse: () => timeout("request", "Timed out waiting for response headers"),
+        }),
+      )
+      const http = RequestExecutor.responseHttp(response)
+      const remaining = Duration.subtract(total, Duration.millis((yield* Clock.currentTimeMillis) - started))
      return {
-        frames: prepared.framing.frame(RequestExecutor.responseStream(response)),
-        http: RequestExecutor.responseHttp(response),
+        frames: prepared.framing.frame(
+          RequestExecutor.responseStream(response).pipe(
+            Stream.timeoutOrElse({
+              duration: timeoutDuration(request.http?.chunkTimeout),
+              orElse: () => Stream.fail(timeout("read", "Timed out waiting for response data", http)),
+            }),
+            Stream.interruptWhen(
+              Effect.sleep(remaining).pipe(
+                Effect.andThen(Effect.fail(timeout("read", "Timed out waiting for the response to complete", http))),
+              ),
+            ),
+          ),
+        ),
+        http,
        body: prepared.framing.body,
      }
    }),
 })

+const timeoutDuration = (value: HttpTimeout | undefined) =>
+  value === false ? Duration.infinity : Duration.millis(value ?? DEFAULT_HTTP_TIMEOUT_MS)
+
 export const sseJson = {
  id: "http-json/sse",
  with: <Body>() => httpJson<Body, string>({ framing: Framing.sse }),
@@ -48,10 +48,23 @@ export const mergeProviderOptions = (
  ...items: ReadonlyArray<ProviderOptions | undefined>
 ): ProviderOptions | undefined => mergeJsonRecords(...items)

+/** Milliseconds for an HTTP timeout, or `false` to disable it. */
+export const HttpTimeout = Schema.Union([Schema.Number.check(Schema.isGreaterThan(0)), Schema.Literal(false)])
+export type HttpTimeout = Schema.Schema.Type<typeof HttpTimeout>
+
+/** Applied to `headerTimeout` and `chunkTimeout` when a request leaves them unset. */
+export const DEFAULT_HTTP_TIMEOUT_MS = 300_000
+
 export class HttpOptions extends Schema.Class<HttpOptions>("AI.HttpOptions")({
  body: Schema.optional(JsonSchema),
  headers: Schema.optional(Schema.Record(Schema.String, Schema.String)),
  query: Schema.optional(Schema.Record(Schema.String, Schema.String)),
+  /** Time allowed for the whole request, from send until the response completes. Unbounded when unset. */
+  timeout: Schema.optional(HttpTimeout),
+  /** Time allowed for response headers to arrive. */
+  headerTimeout: Schema.optional(HttpTimeout),
+  /** Time allowed between streamed response chunks once headers have arrived. */
+  chunkTimeout: Schema.optional(HttpTimeout),
 }) {}

 export namespace HttpOptions {
@@ -70,8 +83,12 @@ export const mergeHttpOptions = (...items: ReadonlyArray<HttpOptions | undefined
  const body = mergeJsonRecords(...items.map((item) => item?.body))
  const headers = mergeStringRecords(...items.map((item) => item?.headers))
  const query = mergeStringRecords(...items.map((item) => item?.query))
-  if (!body && !headers && !query) return undefined
-  return new HttpOptions({ body, headers, query })
+  const timeout = items.findLast((item) => item?.timeout !== undefined)?.timeout
+  const headerTimeout = items.findLast((item) => item?.headerTimeout !== undefined)?.headerTimeout
+  const chunkTimeout = items.findLast((item) => item?.chunkTimeout !== undefined)?.chunkTimeout
+  if (!body && !headers && !query && timeout === undefined && headerTimeout === undefined && chunkTimeout === undefined)
+    return undefined
+  return new HttpOptions({ body, headers, query, timeout, headerTimeout, chunkTimeout })
 }

 export class GenerationOptions extends Schema.Class<GenerationOptions>("LLM.GenerationOptions")({
@@ -14,7 +14,6 @@ import * as GoogleVertexChat from "../src/providers/google-vertex-chat.js"
 import * as GoogleVertexMessages from "../src/providers/google-vertex-messages.js"
 import * as GoogleVertexResponses from "../src/providers/google-vertex-responses.js"
 import * as OpenAI from "../src/providers/openai.js"
-import * as OpenAICompatible from "../src/providers/openai-compatible.js"
 import * as OpenRouter from "../src/providers/openrouter.js"
 import * as XAI from "../src/providers/xai.js"

@@ -145,6 +145,59 @@ describe("applyCachePolicy", () => {
    }),
  )

+  it.effect("Alibaba chat caches the system and conversation tail without marking tools", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: Alibaba.configure({ region: "ap-southeast-1", apiKey: "test" }).chat("qwen3.8-max"),
+          system: "You are concise.",
+          tools: [{ name: "lookup", description: "Look up a value", inputSchema: { type: "object", properties: {} } }],
+          prompt: "hi",
+        }),
+      )
+
+      expect(prepared.body).toMatchObject({
+        tools: [{ type: "function", function: { name: "lookup" } }],
+        messages: [
+          {
+            role: "system",
+            content: [{ text: "You are concise.", cache_control: { type: "ephemeral" } }],
+          },
+          { role: "user", content: [{ text: "hi", cache_control: { type: "ephemeral" } }] },
+        ],
+      })
+      expect(prepared.body.tools?.[0]?.cache_control).toBeUndefined()
+    }),
+  )
+
+  it.effect("Alibaba chat omits automatic cache markers when cache is none", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: Alibaba.configure({ region: "ap-southeast-1", apiKey: "test" }).chat("qwen3.8-max"),
+          system: "You are concise.",
+          prompt: "hi",
+          cache: "none",
+        }),
+      )
+
+      expect(JSON.stringify(prepared.body)).not.toContain("cache_control")
+    }),
+  )
+
+  it.effect("Alibaba chat does not assume non-Qwen models support cache markers", () =>
+    Effect.gen(function* () {
+      const alibaba = Alibaba.configure({ region: "ap-southeast-1", apiKey: "test" })
+      for (const modelID of ["kimi-k3", "glm-5.2", "deepseek-v4-flash-0731", "MiniMax-M2.5"]) {
+        const prepared = yield* compileRequest(
+          LLM.request({ model: alibaba.chat(modelID), system: "You are concise.", prompt: "hi" }),
+        )
+
+        expect(JSON.stringify(prepared.body)).not.toContain("cache_control")
+      }
+    }),
+  )
+
  it.effect("'auto' emits Anthropic cache markers on Anthropic-compatible routes", () =>
    Effect.gen(function* () {
      const prepared = yield* compileRequest(
@@ -1,11 +1,17 @@
 import { describe, expect } from "bun:test"
 import { Deferred, Effect, Fiber, Layer, Ref, Stream } from "effect"
-import { Headers, HttpClientError, HttpClientRequest } from "effect/unstable/http"
-import { LLM, AIError, HttpContext, InvalidProviderOutputError, TransportError } from "../src/index.js"
-import { LLMClient, RequestExecutor, WebSocketTransport, type WebSocketChannelExecutor } from "../src/route.js"
+import { Headers, HttpClientError, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+import { LLM, AIError, HttpContext, InvalidProviderOutputError, TransportError, isRetryable } from "../src/index.js"
+import {
+  LLMClient,
+  RequestExecutor,
+  WebSocketTransport,
+  type HttpMiddleware,
+  type WebSocketChannelExecutor,
+} from "../src/route.js"
 import { route } from "../src/protocols/openai-chat.js"
 import { configure } from "../src/providers/openai.js"
-import { dynamicResponse, fixedResponse, handlerLayer, systemError } from "./lib/http.js"
+import { dynamicResponse, fixedResponse, handlerLayer, systemError, truncatedStream } from "./lib/http.js"
 import { deltaChunk } from "./lib/openai-chunks.js"
 import { sseEvents, sseRaw } from "./lib/sse.js"
 import { it } from "./lib/effect.js"
@@ -18,6 +24,8 @@ const secretRequest = HttpClientRequest.post("https://provider.test/v1/chat?api_
  HttpClientRequest.setHeaders(Headers.fromInput({ authorization: "Bearer header-secret-456" })),
 )

+const sseRequest = HttpClientRequest.post("https://provider.test/v1/messages")
+
 const expectAIError = (error: unknown) => {
  expect(error).toBeInstanceOf(AIError)
  if (!(error instanceof AIError)) throw new Error("expected AIError")
@@ -93,7 +101,9 @@ describe("RequestExecutor", () => {
      const error = yield* RequestExecutor.stream(executor, secretRequest).pipe(Stream.runDrain, Effect.flip)

      expectAIError(error)
-      expect(error.message).toBe("ECONNRESET: disconnected query-secret-123 header-secret-456")
+      expect(error.message).toBe(
+        "Connection lost while reading the response: ECONNRESET: disconnected query-secret-123 header-secret-456",
+      )
      expect(error.reason.http).toMatchObject({ status: 200, url: secretRequest.url })
      expect(error.reason.cause).toMatchObject({ code: "ECONNRESET" })
      expect(error.reason).toMatchObject({
@@ -123,7 +133,7 @@ describe("RequestExecutor", () => {
      const error = yield* RequestExecutor.stream(executor, secretRequest).pipe(Stream.runDrain, Effect.flip)

      expectAIError(error)
-      expect(error.message).toBe("ECONNRESET: socket closed")
+      expect(error.message).toBe("Connection lost while reading the response: ECONNRESET: socket closed")
      expect(error.reason.cause).toBeInstanceOf(TypeError)
      expect(error.reason).toMatchObject({
        _tag: "Transport",
@@ -144,6 +154,54 @@ describe("RequestExecutor", () => {
    ),
  )

+  it.effect("reports a connection lost mid-stream through middleware that re-wraps the body", () =>
+    Effect.gen(function* () {
+      const executor = yield* RequestExecutor.Service
+      const chunks: Array<Uint8Array> = []
+      // Session HTTP hooks hand plugins a web Response, so the body is re-wrapped around the original stream.
+      const rewrap: HttpMiddleware = (input, handler) =>
+        Effect.gen(function* () {
+          const response = yield* handler(input)
+          const body = yield* Stream.toReadableStreamEffect(response.stream)
+          return HttpClientResponse.fromWeb(
+            input,
+            new Response(body, { status: response.status, headers: response.headers }),
+          )
+        })
+      const error = yield* RequestExecutor.stream(executor, sseRequest, rewrap).pipe(
+        Stream.runForEach((chunk) => Effect.sync(() => chunks.push(chunk))),
+        Effect.flip,
+      )
+
+      expectAIError(error)
+      expect(new TextDecoder().decode(chunks[0])).toBe('data: {"type":"ping"}\n\n')
+      expect(error.message).toBe("Connection lost while reading the response: ECONNRESET: other side closed")
+      expect(error.reason.cause).toBeInstanceOf(TypeError)
+      expect(error.reason.http).toMatchObject({ status: 200 })
+      expect(error.reason).toMatchObject({ _tag: "Transport", operation: "read", code: "ECONNRESET" })
+      expect(isRetryable(error)).toBeTrue()
+    }).pipe(
+      Effect.provide(
+        truncatedStream(
+          ['data: {"type":"ping"}\n\n'],
+          new TypeError("terminated", { cause: systemError("ECONNRESET", "other side closed") }),
+        ),
+      ),
+    ),
+  )
+
+  it.effect("does not report a body read failure without a native cause as a decode error", () =>
+    Effect.gen(function* () {
+      const executor = yield* RequestExecutor.Service
+      const error = yield* RequestExecutor.stream(executor, sseRequest).pipe(Stream.runDrain, Effect.flip)
+
+      expectAIError(error)
+      expect(error.message).toBe("Connection lost while reading the response")
+      expect(error.reason).toMatchObject({ _tag: "Transport", operation: "read", code: undefined })
+      expect(isRetryable(error)).toBeTrue()
+    }).pipe(Effect.provide(truncatedStream(['data: {"type":"ping"}\n\n'], new DOMException("aborted", "AbortError")))),
+  )
+
  it.effect("preserves middleware error messages", () =>
    Effect.gen(function* () {
      const executor = yield* RequestExecutor.Service
@@ -10,7 +10,7 @@
      "usage"
    ],
    "name": "alibaba-chat/qwen-3-7-plus-streams-thinking-disabled",
-    "recordedAt": "2026-09-08T03:10:42.782Z"
+    "recordedAt": "2026-10-02T01:23:37.836Z"
  },
  "interactions": [
    {
@@ -21,14 +21,14 @@
        "headers": {
          "content-type": "application/json"
        },
-        "body": "{\"model\":\"qwen3.7-plus\",\"messages\":[{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"max_completion_tokens\":4096,\"enable_thinking\":false}"
+        "body": "{\"model\":\"qwen3.7-plus\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"max_completion_tokens\":4096,\"enable_thinking\":false}"
      },
      "response": {
        "status": 200,
        "headers": {
          "content-type": "text/event-stream;charset=utf-8"
        },
-        "body": "data: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-047bcb67-b193-9a4f-9d77-ea0325be6d7c\",\"created\":1788837041,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-047bcb67-b193-9a4f-9d77-ea0325be6d7c\",\"choices\":[{\"delta\":{\"content\":\"3\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837041,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-047bcb67-b193-9a4f-9d77-ea0325be6d7c\",\"choices\":[{\"delta\":{\"content\":\"7887\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837041,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-047bcb67-b193-9a4f-9d77-ea0325be6d7c\",\"choices\":[{\"delta\":{\"content\":\"\"},\"index\":0,\"finish_reason\":\"stop\",\"logprobs\":null}],\"created\":1788837041,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"choices\":[],\"created\":1788837041,\"id\":\"chatcmpl-047bcb67-b193-9a4f-9d77-ea0325be6d7c\",\"model\":\"qwen3.7-plus\",\"object\":\"chat.completion.chunk\",\"usage\":{\"completion_tokens\":5,\"prompt_tokens\":32,\"prompt_tokens_details\":{\"cached_tokens\":0,\"text_tokens\":32},\"total_tokens\":37}}\n\ndata: [DONE]\n\n"
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  ]
@@ -10,7 +10,7 @@
      "usage"
    ],
    "name": "alibaba-chat/qwen-3-7-plus-streams-thinking-enabled",
-    "recordedAt": "2026-09-08T03:10:54.099Z"
+    "recordedAt": "2026-10-02T01:23:43.998Z"
  },
  "interactions": [
    {
@@ -21,14 +21,14 @@
        "headers": {
          "content-type": "application/json"
        },
-        "body": "{\"model\":\"qwen3.7-plus\",\"messages\":[{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"max_completion_tokens\":4096,\"enable_thinking\":true,\"thinking_budget\":1024}"
+        "body": "{\"model\":\"qwen3.7-plus\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"max_completion_tokens\":4096,\"enable_thinking\":true,\"thinking_budget\":1024}"
      },
      "response": {
        "status": 200,
        "headers": {
          "content-type": "text/event-stream;charset=utf-8"
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{\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\".  **Ident\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"ify the core question\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\":** The user wants\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: 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{\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" the constraint:** The\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" response must contain *\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"only\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"* the final integer\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"cLine truncated
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      }
    }
  ]
@@ -1,9 +1,15 @@
 {
  "version": 1,
  "metadata": {
-    "tags": ["prefix:alibaba-chat", "provider:alibaba", "protocol:alibaba-chat", "region:ap-southeast-1", "image"],
+    "tags": [
+      "prefix:alibaba-chat",
+      "provider:alibaba",
+      "protocol:alibaba-chat",
+      "region:ap-southeast-1",
+      "image"
+    ],
    "name": "alibaba-chat/qwen-3-8-flash-reads-image-bytes",
-    "recordedAt": "2026-09-08T03:10:55.585Z"
+    "recordedAt": "2026-10-02T01:23:45.179Z"
  },
  "interactions": [
    {
@@ -14,14 +20,14 @@
        "headers": {
          "content-type": "application/json"
        },
-        "body": "{\"model\":\"qwen3.8-flash\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Read the three words in this image. Reply with only the words in order.\"},{\"type\":\"image_url\",\"image_url\":{\"url\":\"data:image/png;base64,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 truncated
+        "body": "{\"model\":\"qwen3.8-flash\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Read the three words in this image. Reply with only the words in order.\",\"cache_control\":{\"type\":\"ephemeral\"}},{\"type\":\"image_url\",\"image_url\":{\"url\":\"data:image/png;base64,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 truncated
      },
      "response": {
        "status": 200,
        "headers": {
          "content-type": "text/event-stream;charset=utf-8"
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@@ -12,7 +12,7 @@
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{\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c075c2f7-07b5-975b-96bd-5ee12c72fb7c\",\"choices\":[{\"delta\":{\"content\":\" = $37\",\"reasoning_content\":\"\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836991,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c075c2f7-07b5-975b-96bd-5ee12c72fb7c\",\"choices\":[{\"delta\":{\"content\":\",887\",\"reasoning_content\":\Line truncated
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@@ -20,14 +20,14 @@
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@@ -11,7 +11,7 @@
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@@ -11,7 +11,7 @@
      "usage"
    ],
    "name": "alibaba-chat/qwen-3-8-max-streams-max-effort",
-    "recordedAt": "2026-09-08T03:09:49.033Z"
+    "recordedAt": "2026-10-02T01:23:30.455Z"
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@@ -22,14 +22,14 @@
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        "status": 200,
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      }
    }
  ]
@@ -11,7 +11,7 @@
      "usage"
    ],
    "name": "alibaba-chat/qwen-3-8-max-streams-medium-effort",
-    "recordedAt": "2026-09-08T03:09:38.233Z"
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+        "status": 200,
+        "headers": {
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+      }
+    }
+  ]
+}
@@ -0,0 +1,32 @@
+{
+  "version": 1,
+  "metadata": {
+    "tags": [
+      "prefix:google-interactions",
+      "provider:google",
+      "protocol:google-interactions"
+    ],
+    "name": "google-interactions/streams-reasoning-and-retains-thought-signatures",
+    "recordedAt": "2026-10-03T18:08:37.674Z"
+  },
+  "interactions": [
+    {
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+        "method": "POST",
+        "url": "https://generativelanguage.googleapis.com/v1beta/interactions",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"model\":\"gemini-3.8-flash\",\"input\":[{\"type\":\"user_input\",\"content\":[{\"type\":\"text\",\"text\":\"Find the smallest positive integer that leaves remainder 1 modulo 7, 2 modulo 9, and 3 modulo 11. Explain briefly.\"}]}],\"stream\":true,\"store\":false,\"generation_config\":{\"max_output_tokens\":4096,\"thinking_level\":\"high\",\"thinking_summaries\":\"auto\"}}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "text/event-stream"
+        },
+        "body": "event: interaction.created\ndata: {\"interaction\":{\"object\":\"interaction\",\"model\":\"gemini-3.8-flash\"},\"event_type\":\"interaction.created\"}\n\nevent: interaction.status_update\ndata: {\"status\":\"in_progress\",\"event_type\":\"interaction.status_update\"}\n\nevent: step.start\ndata: {\"index\":0,\"step\":{\"type\":\"thought\"},\"event_type\":\"step.start\"}\n\nevent: step.delta\ndata: {\"index\":0,\"delta\":{\"content\":{\"text\":\"**Analyzing Congruences**\\n\\nI'm tackling a system of congruences to find the smallest positive integer x. Currently, I'm reviewing the Chinese Remainder Theorem as a potential solution, or considering a direct congruence-based approach. The congruences are as follows: $x \\\\equiv 1 \\\\pmod{7}$, $x \\\\equiv 2 \\\\pmod{9}$, $x \\\\equiv 3 \\\\pmod{11}$. 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+      }
+    }
+  ]
+}
@@ -0,0 +1,32 @@
+{
+  "version": 1,
+  "metadata": {
+    "tags": [
+      "prefix:google-interactions",
+      "provider:google",
+      "protocol:google-interactions"
+    ],
+    "name": "google-interactions/streams-text-and-reports-usage",
+    "recordedAt": "2026-10-03T18:08:32.334Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://generativelanguage.googleapis.com/v1beta/interactions",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"model\":\"gemini-3.8-flash\",\"input\":[{\"type\":\"user_input\",\"content\":[{\"type\":\"text\",\"text\":\"Reply with exactly one word: hello\"}]}],\"stream\":true,\"store\":false,\"generation_config\":{\"max_output_tokens\":2048,\"thinking_level\":\"low\"}}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "text/event-stream"
+        },
+        "body": "event: interaction.created\ndata: {\"interaction\":{\"object\":\"interaction\",\"model\":\"gemini-3.8-flash\"},\"event_type\":\"interaction.created\"}\n\nevent: interaction.status_update\ndata: {\"status\":\"in_progress\",\"event_type\":\"interaction.status_update\"}\n\nevent: step.start\ndata: {\"index\":0,\"step\":{\"type\":\"thought\"},\"event_type\":\"step.start\"}\n\nevent: step.delta\ndata: {\"index\":0,\"delta\":{\"signature\":\"EmkKZwFpFH0TKZDuA7i8rhztLxjVI9+u+bpJI/x6/j60nie/dFgj5TyzAJCDDZQYfmeXEBrujJcdKT5FiKPuuMYWq1shTTILJ1JQpG2WkGAk6rAxxgxp7Ac0+rporJ7knHFF/jVWQD+AYGY=\",\"type\":\"thought_signature\"},\"event_type\":\"step.delta\"}\n\nevent: step.stop\ndata: {\"index\":0,\"event_type\":\"step.stop\"}\n\nevent: step.start\ndata: {\"index\":1,\"step\":{\"type\":\"model_output\"},\"event_type\":\"step.start\"}\n\nevent: step.delta\ndata: {\"index\":1,\"delta\":{\"text\":\"hello\",\"type\":\"text\"},\"event_type\":\"step.delta\"}\n\nevent: step.stop\ndata: {\"index\":1,\"event_type\":\"step.stop\"}\n\nevent: interaction.completed\ndata: {\"interaction\":{\"status\":\"completed\",\"usage\":{\"total_tokens\":9,\"total_input_tokens\":8,\"input_tokens_by_modality\":[{\"modality\":\"text\",\"tokens\":8}],\"total_cached_tokens\":0,\"total_output_tokens\":1,\"total_tool_use_tokens\":0,\"total_thought_tokens\":0,\"raw_prompt_token\":39,\"model_invocation_token_counts\":[{\"prompt_tokens_details\":[{\"modality\":\"text\",\"tokens\":39}],\"candidates_tokens_details\":[{\"modality\":\"text\",\"tokens\":5}]}],\"non_grounding_model_invocation_token_counts\":[{\"prompt_tokens_details\":[{\"modality\":\"text\",\"tokens\":39}],\"candidates_tokens_details\":[{\"modality\":\"text\",\"tokens\":5}]}]},\"created\":\"2026-10-03T18:08:32Z\",\"updated\":\"2026-10-03T18:08:32Z\",\"service_tier\":\"standard\",\"object\":\"interaction\",\"model\":\"gemini-3.8-flash\"},\"event_type\":\"interaction.completed\"}\n\nevent: done\ndata: [DONE]\n\n"
+      }
+    }
+  ]
+}
@@ -2,9 +2,16 @@
  "version": 1,
  "metadata": {
    "model": "mistral-small-latest",
-    "tags": ["prefix:mistral-chat", "provider:mistral", "protocol:mistral-chat", "tool", "tool-loop", "usage"],
+    "tags": [
+      "prefix:mistral-chat",
+      "provider:mistral",
+      "protocol:mistral-chat",
+      "tool",
+      "tool-loop",
+      "usage"
+    ],
    "name": "mistral-chat/drives-a-tool-loop",
-    "recordedAt": "2026-08-30T17:18:49.552Z"
+    "recordedAt": "2026-10-03T04:09:49.878Z"
  },
  "interactions": [
    {
@@ -15,14 +22,14 @@
        "headers": {
          "content-type": "application/json"
        },
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+        "body": "{\"model\":\"mistral-small-latest\",\"messages\":[{\"role\":\"system\",\"content\":[{\"type\":\"text\",\"text\":\"Call lookup_weather exactly once with Paris.\"},{\"type\":\"text\",\"text\":\"After the tool result, describe the weather briefly.\"}]},{\"role\":\"user\",\"content\":\"What is the weather?\"}],\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"description\":\"Look up the current weather for a city\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"strict\":false}}],\"tool_choice\":{\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\"}},\"stream\":true,\"max_tokens\":160,\"temperature\":0,\"reasoning_effort\":\"none\"}"
      },
      "response": {
        "status": 200,
        "headers": {
          "content-type": "text/event-stream; charset=utf-8"
        },
-        "body": "data: {\"id\":\"07491e37a5ed48f9987f1583753a466b\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"role\":\"assistant\",\"content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"id\":\"07491e37a5ed48f9987f1583753a466b\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"tool_calls\":[{\"id\":\"ffJovBNqY\",\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"arguments\":\"{\\\"city\\\": \\\"Paris\\\"}\"},\"index\":0}]},\"finish_reason\":\"tool_calls\"}],\"usage\":{\"prompt_tokens\":110,\"total_tokens\":122,\"completion_tokens\":12,\"prompt_tokens_details\":{\"cached_tokens\":0},\"service_tier\":\"standard\"},\"p\":\"abcdefghijklm\"}\n\ndata: [DONE]\n\n"
+        "body": "data: {\"id\":\"81417fdbfbeb4714ae737aab701cbee4\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"role\":\"assistant\",\"content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"id\":\"81417fdbfbeb4714ae737aab701cbee4\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"tool_calls\":[{\"id\":\"EwgHkPRLW\",\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"arguments\":\"{\\\"city\\\": \\\"Paris\\\"}\"},\"index\":0}]},\"finish_reason\":\"tool_calls\"}],\"usage\":{\"prompt_tokens\":120,\"total_tokens\":132,\"completion_tokens\":12,\"prompt_tokens_details\":{\"cached_tokens\":0},\"service_tier\":\"standard\"},\"p\":\"abcdefghij\"}\n\ndata: [DONE]\n\n"
      }
    },
    {
@@ -33,14 +40,14 @@
        "headers": {
          "content-type": "application/json"
        },
-        "body": "{\"model\":\"mistral-small-latest\",\"messages\":[{\"role\":\"system\",\"content\":\"Call lookup_weather exactly once with Paris.\"},{\"role\":\"user\",\"content\":\"What is the weather?\"},{\"role\":\"assistant\",\"content\":\"\",\"tool_calls\":[{\"id\":\"ffJovBNqY\",\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"arguments\":\"{\\\"city\\\":\\\"Paris\\\"}\"}}]},{\"role\":\"tool\",\"tool_call_id\":\"ffJovBNqY\",\"name\":\"lookup_weather\",\"content\":\"{\\\"condition\\\":\\\"sunny\\\",\\\"temperature\\\":\\\"18C\\\"}\"}],\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"description\":\"Look up the current weather for a city\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"strict\":false}}],\"tool_choice\":\"none\",\"stream\":true,\"max_tokens\":160,\"temperature\":0,\"reasoning_effort\":\"none\"}"
+        "body": "{\"model\":\"mistral-small-latest\",\"messages\":[{\"role\":\"system\",\"content\":[{\"type\":\"text\",\"text\":\"Call lookup_weather exactly once with Paris.\"},{\"type\":\"text\",\"text\":\"After the tool result, describe the weather briefly.\"}]},{\"role\":\"user\",\"content\":\"What is the weather?\"},{\"role\":\"assistant\",\"content\":\"\",\"tool_calls\":[{\"id\":\"EwgHkPRLW\",\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"arguments\":\"{\\\"city\\\":\\\"Paris\\\"}\"}}]},{\"role\":\"tool\",\"tool_call_id\":\"EwgHkPRLW\",\"name\":\"lookup_weather\",\"content\":\"{\\\"condition\\\":\\\"sunny\\\",\\\"temperature\\\":\\\"18C\\\"}\"}],\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"description\":\"Look up the current weather for a city\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"strict\":false}}],\"tool_choice\":\"none\",\"stream\":true,\"max_tokens\":160,\"temperature\":0,\"reasoning_effort\":\"none\"}"
      },
      "response": {
        "status": 200,
        "headers": {
          "content-type": "text/event-stream; charset=utf-8"
        },
-        "body": "data: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"role\":\"assistant\",\"content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"The\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmn\"}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" weather in Paris is\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmn\"}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" currently sunny with\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmnopqrstu\"}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" a temperature of \"},\"finish_reason\":null}],\"p\":\"abcdef\"}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"18°C\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmnopqr\"}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\".\"},\"finish_reason\":\"stop\"}],\"usage\":{\"prompt_tokens\":57,\"total_tokens\":74,\"completion_tokens\":17,\"prompt_tokens_details\":{\"cached_tokens\":0},\"service_tier\":\"standard\"},\"p\":\"abcdefghijklmnopqrstuvwxyz\"}\n\ndata: [DONE]\n\n"
+        "body": "data: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"role\":\"assistant\",\"content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"The\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmnopqrstuvwxyz01234\"}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" weather in Paris is\"},\"finish_reason\":null}],\"p\":\"abcdefghijkl\"}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" currently sunny with a\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmn\"}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" temperature of 1\"},\"finish_reason\":null}],\"p\":\"abcdefghi\"}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"8°C\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmnopqrstuvwx\"}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\".\"},\"finish_reason\":\"stop\"}],\"usage\":{\"prompt_tokens\":67,\"total_tokens\":84,\"completion_tokens\":17,\"prompt_tokens_details\":{\"cached_tokens\":0},\"service_tier\":\"standard\"},\"p\":\"abcdefghijklmnopqrs\"}\n\ndata: [DONE]\n\n"
      }
    }
  ]
@@ -0,0 +1,169 @@
+import { describe, expect } from "bun:test"
+import { Deferred, Effect, Fiber } from "effect"
+import * as TestClock from "effect/testing/TestClock"
+import { HttpOptions, LLM, mergeHttpOptions } from "../src/index.js"
+import { LLMClient } from "../src/route.js"
+import { configure } from "../src/providers/openai.js"
+import { dynamicResponse } from "./lib/http.js"
+import { deltaChunk, finishChunk } from "./lib/openai-chunks.js"
+import { sseEvents, sseRaw } from "./lib/sse.js"
+import { it } from "./lib/effect.js"
+
+const model = configure({ baseURL: "https://api.openai.test/v1/", apiKey: "test" }).chat("gpt-4.1-mini")
+const SSE = { headers: { "content-type": "text/event-stream" } }
+
+const silentServer = dynamicResponse(() => Effect.never)
+
+const slowHeadersServer = dynamicResponse((input) =>
+  Effect.sleep("10 minutes").pipe(
+    Effect.as(input.respond(sseEvents(deltaChunk({ role: "assistant", content: "Hi" }), finishChunk("stop")), SSE)),
+  ),
+)
+
+// Sends one chunk, then stalls until `resume` releases the rest of the body.
+const stalledServer = Effect.gen(function* () {
+  const stalled = yield* Deferred.make<void>()
+  let resume = () => {}
+  const released = new Promise<void>((resolve) => {
+    resume = resolve
+  })
+  const encoder = new TextEncoder()
+  const layer = dynamicResponse((input) =>
+    Effect.sync(() =>
+      input.respond(
+        new ReadableStream<Uint8Array>({
+          start(controller) {
+            controller.enqueue(encoder.encode(sseRaw(`data: ${JSON.stringify(deltaChunk({ content: "Hi" }))}`)))
+          },
+          async pull(controller) {
+            Deferred.doneUnsafe(stalled, Effect.void)
+            await released
+            controller.enqueue(encoder.encode(sseEvents(finishChunk("stop"))))
+            controller.close()
+          },
+        }),
+        SSE,
+      ),
+    ),
+  )
+  return { layer, stalled, resume: () => resume() }
+})
+
+describe("HTTP transport timeouts", () => {
+  it.effect("fails when response headers take longer than five minutes", () =>
+    Effect.gen(function* () {
+      const fiber = yield* LLMClient.generate(LLM.request({ model, prompt: "Hello" })).pipe(
+        Effect.provide(silentServer),
+        Effect.flip,
+        Effect.forkChild({ startImmediately: true }),
+      )
+      yield* TestClock.adjust("5 minutes")
+      const error = yield* Fiber.join(fiber)
+
+      expect(error.reason).toMatchObject({
+        _tag: "Transport",
+        transport: "http",
+        operation: "request",
+        code: "Timeout",
+      })
+    }),
+  )
+
+  it.effect("fails when the response body stalls for five minutes", () =>
+    Effect.gen(function* () {
+      const server = yield* stalledServer
+      const fiber = yield* LLMClient.generate(LLM.request({ model, prompt: "Hello" })).pipe(
+        Effect.provide(server.layer),
+        Effect.flip,
+        Effect.forkChild({ startImmediately: true }),
+      )
+      yield* Deferred.await(server.stalled)
+      yield* Effect.yieldNow
+      yield* TestClock.adjust("5 minutes")
+      const error = yield* Fiber.join(fiber)
+
+      expect(error.reason).toMatchObject({ _tag: "Transport", transport: "http", operation: "read", code: "Timeout" })
+      expect(error.reason.http).toMatchObject({ status: 200 })
+    }),
+  )
+
+  it.effect("applies a configured header timeout", () =>
+    Effect.gen(function* () {
+      const fiber = yield* LLMClient.generate(
+        LLM.request({ model, prompt: "Hello", http: { headerTimeout: 1_000 } }),
+      ).pipe(Effect.provide(silentServer), Effect.flip, Effect.forkChild({ startImmediately: true }))
+      yield* TestClock.adjust("1 second")
+      const error = yield* Fiber.join(fiber)
+
+      expect(error.reason).toMatchObject({ _tag: "Transport", operation: "request", code: "Timeout" })
+    }),
+  )
+
+  it.effect("disables the header timeout with false", () =>
+    Effect.gen(function* () {
+      const fiber = yield* LLMClient.generate(
+        LLM.request({ model, prompt: "Hello", http: { headerTimeout: false } }),
+      ).pipe(Effect.provide(slowHeadersServer), Effect.forkChild({ startImmediately: true }))
+      yield* TestClock.adjust("10 minutes")
+      const response = yield* Fiber.join(fiber)
+
+      expect(response.text).toBe("Hi")
+    }),
+  )
+
+  it.effect("disables the chunk timeout with false", () =>
+    Effect.gen(function* () {
+      const server = yield* stalledServer
+      const fiber = yield* LLMClient.generate(
+        LLM.request({ model, prompt: "Hello", http: { chunkTimeout: false } }),
+      ).pipe(Effect.provide(server.layer), Effect.forkChild({ startImmediately: true }))
+      yield* Deferred.await(server.stalled)
+      yield* Effect.yieldNow
+      yield* TestClock.adjust("10 minutes")
+      server.resume()
+      const response = yield* Fiber.join(fiber)
+
+      expect(response.text).toBe("Hi")
+    }),
+  )
+
+  it.effect("applies a whole-request timeout while the body is still streaming", () =>
+    Effect.gen(function* () {
+      const server = yield* stalledServer
+      const fiber = yield* LLMClient.generate(
+        LLM.request({ model, prompt: "Hello", http: { timeout: 60_000, chunkTimeout: false } }),
+      ).pipe(Effect.provide(server.layer), Effect.flip, Effect.forkChild({ startImmediately: true }))
+      yield* Deferred.await(server.stalled)
+      yield* Effect.yieldNow
+      yield* TestClock.adjust("1 minute")
+      const error = yield* Fiber.join(fiber)
+
+      expect(error.reason).toMatchObject({ _tag: "Transport", operation: "read", code: "Timeout" })
+    }),
+  )
+
+  it.effect("bounds the header wait by a shorter whole-request timeout", () =>
+    Effect.gen(function* () {
+      const fiber = yield* LLMClient.generate(
+        LLM.request({ model, prompt: "Hello", http: { timeout: 1_000, headerTimeout: false } }),
+      ).pipe(Effect.provide(silentServer), Effect.flip, Effect.forkChild({ startImmediately: true }))
+      yield* TestClock.adjust("1 second")
+      const error = yield* Fiber.join(fiber)
+
+      expect(error.reason).toMatchObject({ _tag: "Transport", operation: "request", code: "Timeout" })
+    }),
+  )
+
+  it.effect("merges timeouts with later values winning", () =>
+    Effect.sync(() => {
+      const merged = mergeHttpOptions(
+        new HttpOptions({ timeout: 5_000, headerTimeout: 1_000, chunkTimeout: 2_000 }),
+        new HttpOptions({ headers: { a: "b" } }),
+        new HttpOptions({ chunkTimeout: false }),
+      )
+
+      expect(merged).toMatchObject({ headers: { a: "b" }, timeout: 5_000, headerTimeout: 1_000, chunkTimeout: false })
+      expect(mergeHttpOptions(new HttpOptions({}), undefined)).toBeUndefined()
+    }),
+  )
+})
@@ -462,6 +462,27 @@ describe("provider error rawBody classification", () => {
    expect(reason._tag === "InvalidRequest" ? reason.classification : reason._tag).toBe("context-overflow")
  })

+  test("separates Cohere prompt overflow from output limit rejections", () => {
+    const classify = (message: string) => {
+      const reason = classifyProviderFailure({
+        message,
+        status: 400,
+        rawBody: JSON.stringify({ error_type: "TOO_MANY_TOKENS", message }),
+      })
+      return reason._tag === "InvalidRequest" ? reason.classification : reason._tag
+    }
+    expect(
+      classify(
+        "too many tokens: size limit exceeded by 168512 tokens. Try using shorter or fewer inputs. The limit for this model is 132000 tokens.",
+      ),
+    ).toBe("context-overflow")
+    expect(
+      classify(
+        "too many tokens: max tokens must be less than or equal to 4096, the maximum output length for this model - received 1000000.",
+      ),
+    ).toBeUndefined()
+  })
+
  test("classifies invalid API keys reported as HTTP 400 as authentication failures", () => {
    const rawBody = JSON.stringify({
      error: {
@@ -121,6 +121,25 @@ describe("provider package entrypoints", () => {
    })
  })

+  test("maps Cohere entrypoints onto native and compatibility routes", async () => {
+    const modules = await Promise.all([
+      import("@opencode/ai/providers/cohere"),
+      import("@opencode/ai/providers/cohere/chat"),
+    ])
+    const settings = { apiKey: "fixture", headers: { "x-test": "fixture" }, body: { future_option: true } }
+    const routes = [
+      ["cohere-chat", "https://api.cohere.com/v2"],
+      ["cohere-chat-completions", "https://api.cohere.ai/compatibility/v1"],
+    ]
+    modules.forEach((module, index) => {
+      const selected = module.model("command-a-03-2025", settings)
+      expect(selected.provider).toBe("cohere")
+      expect([selected.route.id, selected.route.endpoint.baseURL]).toEqual(routes[index])
+      expect(selected.route.defaults.headers).toEqual(settings.headers)
+      expect(selected.route.defaults.http?.body).toEqual(settings.body)
+    })
+  })
+
  test("maps MiniMax API entrypoints onto provider-owned routes", async () => {
    const modules = await Promise.all([
      import("@opencode/ai/providers/minimax"),
@@ -411,6 +430,7 @@ describe("provider package entrypoints", () => {

  test("maps Google package settings onto the Gemini model", async () => {
    const Google = await import("@opencode/ai/providers/google")
+    const GoogleInteractions = await import("@opencode/ai/providers/google/interactions")
    const selected = Google.model("gemini-2.5-flash", {
      apiKey: "fixture",
      baseURL: "https://generativelanguage.test/v1beta",
@@ -424,6 +444,16 @@ describe("provider package entrypoints", () => {
    expect(selected.route.defaults.headers).toEqual({ "x-application": "opencode" })
    expect(selected.route.defaults.http?.body).toEqual({ safetySettings: [] })
    expect(selected.route.defaults.providerOptions).toEqual({ thinkingConfig: { thinkingBudget: 1_024 } })
+    const interactions = GoogleInteractions.model("gemini-3.8-flash", {
+      apiKey: "fixture",
+      baseURL: "https://generativelanguage.test/v1beta",
+      thinkingLevel: "low",
+      store: true,
+    })
+    expect(interactions.route.id).toBe("google-interactions")
+    expect(interactions.route.endpoint.baseURL).toBe("https://generativelanguage.test/v1beta")
+    expect(interactions.route.defaults.providerOptions).toEqual({ thinkingLevel: "low", store: true })
+    expect(Google.configure().interactions("gemini-3.8-flash").route.protocol).toBe("google-interactions")
  })

  test("selects Vertex entrypoints with the same model contract", async () => {
@@ -0,0 +1,98 @@
+import { expect } from "bun:test"
+import { Effect } from "effect"
+import { LLM, LLMEvent, LLMRequest, SystemPart } from "../../src/index.js"
+import { Cohere } from "../../src/providers/cohere.js"
+import { LLMClient } from "../../src/route.js"
+import { expectWeatherToolLoop, goldenWeatherToolLoopRequest, runWeatherToolLoop } from "../recorded-scenarios.js"
+import { recordedTests } from "../recorded-test.js"
+
+const recorded = recordedTests({ prefix: "cohere", provider: "cohere", requires: ["COHERE_API_KEY"] })
+const cohere = Cohere.configure({ apiKey: process.env.COHERE_API_KEY ?? "fixture" })
+
+recorded.effect(
+  "streams native text and usage",
+  () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          model: cohere.model("command-a-03-2025"),
+          prompt: "Reply exactly: OK",
+          generation: { maxTokens: 64 },
+        }),
+      )
+      expect(response.text.trim()).toMatch(/^OK\.?$/)
+      expect(response.usage.inputTokens).toBeGreaterThan(0)
+      expect(response.usage.outputTokens).toBeGreaterThan(0)
+      expect(response.events.find(LLMEvent.is.finish)?.reason).toEqual({ normalized: "stop", raw: "COMPLETE" })
+      expect(response.usage.providerMetadata?.cohere?.billed_units).toBeDefined()
+    }),
+  60_000,
+)
+
+recorded.effect(
+  "streams native thinking with a budget",
+  () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          model: cohere.model("command-a-reasoning-08-2025"),
+          prompt: "What is 17 times 23? Answer briefly.",
+          providerOptions: { thinking: { type: "enabled", tokenBudget: 128 } },
+          generation: { maxTokens: 2048 },
+        }),
+      )
+      expect(response.reasoning.length).toBeGreaterThan(0)
+      expect(response.text).toContain("391")
+      expect(response.usage.reasoningTokens).toBeGreaterThan(0)
+      expect(response.usage.reasoningTokens).toBeLessThanOrEqual(128)
+      expect(response.events.filter(LLMEvent.is.finish)).toHaveLength(1)
+    }),
+  60_000,
+)
+
+recorded.effect(
+  "continues a native tool call",
+  () =>
+    Effect.gen(function* () {
+      const events = yield* runWeatherToolLoop(
+        LLMRequest.update(
+          goldenWeatherToolLoopRequest({
+            id: "cohere-tool-loop",
+            model: cohere.model("command-a-plus-05-2026"),
+            maxTokens: 2048,
+            temperature: false,
+          }),
+          {
+            system: [
+              SystemPart.make("Use the get_weather tool exactly once."),
+              SystemPart.make("After the tool result, reply exactly: Paris is sunny."),
+            ],
+          },
+        ),
+      )
+      expectWeatherToolLoop(events)
+      expect(events.some(LLMEvent.is.toolInputDelta)).toBe(true)
+    }),
+  60_000,
+)
+
+recorded.effect(
+  "streams compatible chat reasoning",
+  () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          model: cohere.chat("command-a-reasoning-08-2025"),
+          prompt: "What is 17 times 23? Answer briefly.",
+          providerOptions: { reasoningEffort: "high" },
+          generation: { maxTokens: 2048 },
+        }),
+      )
+      expect(response.reasoning.length).toBeGreaterThan(0)
+      expect(response.text).toContain("391")
+      expect(response.events.find(LLMEvent.is.finish)?.reason.normalized).toBe("stop")
+      expect(response.usage.inputTokens).toBeGreaterThan(0)
+      expect(response.usage.reasoningTokens).toBeGreaterThan(0)
+    }),
+  60_000,
+)
@@ -0,0 +1,272 @@
+import { expect, test } from "bun:test"
+import { Effect } from "effect"
+import { LLM, LLMClient, LLMEvent, Media, Message, SystemPart, isRetryable } from "../../src/index.js"
+import { Cohere } from "../../src/providers/cohere.js"
+import { compileRequest } from "../../src/route/client.js"
+import { it } from "../lib/effect.js"
+import { fixedResponse } from "../lib/http.js"
+import { sseEvents } from "../lib/sse.js"
+
+const cohere = Cohere.configure({ apiKey: "fixture" })
+
+test("Cohere exposes native and compatible endpoints without Core remapping", () => {
+  expect(cohere.model("command-a-03-2025").route.endpoint.baseURL).toBe("https://api.cohere.com/v2")
+  expect(cohere.chat("command-a-03-2025").route.endpoint.baseURL).toBe("https://api.cohere.ai/compatibility/v1")
+  expect(
+    Cohere.model("command-a-03-2025", { apiKey: "fixture", headers: { "X-Test": "yes" }, body: { temperature: 0 } })
+      .route.defaults?.http,
+  ).toMatchObject({ body: { temperature: 0 } })
+})
+
+it.effect("Cohere lowers native history, thinking, tools, and sampling", () =>
+  Effect.gen(function* () {
+    const prepared = yield* compileRequest(
+      LLM.request({
+        model: cohere.model("command-a-reasoning-08-2025"),
+        system: [SystemPart.make("Be concise.\nKeep this newline."), SystemPart.make("Second instructions.")],
+        messages: [
+          Message.user("Lookup Paris"),
+          Message.assistant([{ type: "tool-call", id: "lookup-1", name: "lookup", input: { city: "Paris" } }]),
+          Message.tool({ id: "lookup-1", name: "lookup", result: { sunny: true } }),
+        ],
+        tools: [{ name: "lookup", description: "Look up a city", inputSchema: { type: "object", properties: {} } }],
+        toolChoice: "required",
+        providerOptions: { thinking: { tokenBudget: 128 } },
+        generation: { maxTokens: 2048, topP: 0.9, topK: 10 },
+      }),
+    )
+    expect(prepared.body).toMatchObject({
+      model: "command-a-reasoning-08-2025",
+      stream: true,
+      p: 0.9,
+      k: 10,
+      max_tokens: 2048,
+      thinking: { type: "enabled", token_budget: 128 },
+      tool_choice: "REQUIRED",
+      messages: [
+        {
+          role: "system",
+          content: [
+            { type: "text", text: "Be concise.\nKeep this newline." },
+            { type: "text", text: "Second instructions." },
+          ],
+        },
+        { role: "user", content: [{ type: "text", text: "Lookup Paris" }] },
+        {
+          role: "assistant",
+          tool_calls: [{ id: "lookup-1", function: { name: "lookup", arguments: '{"city":"Paris"}' } }],
+        },
+        { role: "tool", tool_call_id: "lookup-1", content: '{"sunny":true}' },
+      ],
+    })
+  }),
+)
+
+it.effect("Cohere compatibility omits unsupported OpenAI fields", () =>
+  Effect.gen(function* () {
+    const prepared = yield* compileRequest(
+      LLM.request({
+        model: cohere.chat("command-a-reasoning-08-2025"),
+        prompt: "Hello",
+        providerOptions: { reasoningEffort: "high" },
+        generation: { maxTokens: 64 },
+      }),
+    )
+    expect(prepared.body).toMatchObject({ reasoning_effort: "high", max_tokens: 64, stream: true })
+    expect(prepared.body.stream_options).toEqual({ include_usage: true })
+    for (const key of ["store", "max_completion_tokens", "parallel_tool_calls", "prompt_cache_key"])
+      expect(prepared.body[key]).toBeUndefined()
+  }),
+)
+
+it.effect("Cohere maps inclusive usage while retaining distinct billed units", () =>
+  Effect.gen(function* () {
+    const response = yield* LLMClient.generate(
+      LLM.request({ model: cohere.model("command-a-03-2025"), prompt: "Hi" }),
+    ).pipe(
+      Effect.provide(
+        fixedResponse(
+          sseEvents(
+            { type: "message-start" },
+            { type: "content-start", index: 0, delta: { message: { content: { type: "thinking", thinking: "" } } } },
+            { type: "content-delta", index: 0, delta: { message: { content: { thinking: "Think" } } } },
+            { type: "content-end", index: 0 },
+            { type: "content-start", index: 1, delta: { message: { content: { type: "text", text: "" } } } },
+            { type: "content-delta", index: 1, delta: { message: { content: { text: "OK" } } } },
+            { type: "content-end", index: 1 },
+            {
+              type: "message-end",
+              delta: {
+                finish_reason: "COMPLETE",
+                usage: {
+                  tokens: { input_tokens: 100, output_tokens: 20, reasoning_tokens: 10 },
+                  billed_units: { input_tokens: 30, output_tokens: 15 },
+                  cached_tokens: 60,
+                },
+              },
+            },
+          ),
+        ),
+      ),
+    )
+    expect(response.text).toBe("OK")
+    expect(response.reasoning).toBe("Think")
+    expect(response.usage).toMatchObject({
+      inputTokens: 100,
+      nonCachedInputTokens: 40,
+      cacheReadInputTokens: 60,
+      outputTokens: 20,
+      reasoningTokens: 10,
+      totalTokens: 120,
+      providerMetadata: { cohere: { billed_units: { input_tokens: 30, output_tokens: 15 } } },
+    })
+    expect(response.events.filter(LLMEvent.is.finish)).toHaveLength(1)
+  }),
+)
+
+it.effect("Cohere rejects incomplete streams", () =>
+  Effect.gen(function* () {
+    const error = yield* LLMClient.generate(
+      LLM.request({ model: cohere.model("command-a-03-2025"), prompt: "Hi" }),
+    ).pipe(Effect.provide(fixedResponse(sseEvents({ type: "message-start" }))), Effect.flip)
+    expect(error.message).toContain("without message-end")
+  }),
+)
+
+it.effect("Cohere preserves native tool plans in continued history", () =>
+  Effect.gen(function* () {
+    const response = yield* LLMClient.generate(
+      LLM.request({ model: cohere.model("command-a-03-2025"), prompt: "Hi" }),
+    ).pipe(
+      Effect.provide(
+        fixedResponse(
+          sseEvents(
+            { type: "message-start" },
+            { type: "tool-plan-delta", delta: { message: { tool_plan: "Look up the weather." } } },
+            {
+              type: "tool-call-start",
+              index: 0,
+              delta: { message: { tool_calls: { id: "lookup-1", function: { name: "lookup", arguments: "" } } } },
+            },
+            {
+              type: "tool-call-delta",
+              index: 0,
+              delta: { message: { tool_calls: { function: { arguments: '{"city":"Paris"}' } } } },
+            },
+            { type: "tool-call-end", index: 0 },
+            { type: "message-end", delta: { finish_reason: "TOOL_CALL" } },
+          ),
+        ),
+      ),
+    )
+    expect(response.toolCalls[0]?.input).toEqual({ city: "Paris" })
+    const prepared = yield* compileRequest(
+      LLM.request({
+        model: cohere.model("command-a-03-2025"),
+        messages: [response.message, Message.tool({ id: "lookup-1", name: "lookup", result: { sunny: true } })],
+      }),
+    )
+    expect(prepared.body.messages).toMatchObject([
+      { role: "assistant", tool_plan: "Look up the weather.", tool_calls: [{ id: "lookup-1" }] },
+      { role: "tool", tool_call_id: "lookup-1" },
+    ])
+  }),
+)
+
+it.effect("Cohere rejects unsupported media instead of silently dropping it", () =>
+  Effect.gen(function* () {
+    const error = yield* compileRequest(
+      LLM.request({
+        model: cohere.model("command-a-03-2025"),
+        messages: [Message.user([{ type: "media", media: Media.base64("Zm9v", "audio/wav") }])],
+      }),
+    ).pipe(Effect.flip)
+    expect(error.reason._tag).toBe("InvalidRequest")
+  }),
+)
+
+it.effect("Cohere thinking budgets must be positive integers", () =>
+  Effect.gen(function* () {
+    const error = yield* compileRequest(
+      LLM.request({
+        model: cohere.model("command-a-reasoning-08-2025"),
+        providerOptions: { thinking: { tokenBudget: 0 } },
+      }),
+    ).pipe(Effect.flip)
+    expect(error.reason._tag).toBe("InvalidRequest")
+  }),
+)
+
+it.effect("Cohere fits thinking budgets under the output limit", () =>
+  Effect.gen(function* () {
+    const prepared = yield* compileRequest(
+      LLM.request({
+        model: cohere.model("command-a-reasoning-08-2025"),
+        prompt: "Hi",
+        providerOptions: { thinking: { tokenBudget: 31_999 } },
+        generation: { maxTokens: 4096 },
+      }),
+    )
+    expect(prepared.body.thinking).toEqual({ type: "enabled", token_budget: 2048 })
+  }),
+)
+
+// Bodies captured live on 2026-10-02, except 402 and 429, which are Cohere's documented messages.
+const errors = [
+  { status: 401, message: "Incorrect API key provided: ***-123.", tag: "Authentication", retry: false },
+  { status: 404, message: "model 'no-such-model-xyz' not found", tag: "InvalidRequest", retry: false },
+  {
+    status: 400,
+    message: "invalid request: temperature must be between 0 and 2.0 inclusive.",
+    tag: "InvalidRequest",
+    retry: false,
+  },
+  {
+    status: 400,
+    error_type: "TOO_MANY_TOKENS",
+    message: "too many tokens: size limit exceeded by 168512 tokens. The limit for this model is 132000 tokens.",
+    tag: "InvalidRequest",
+    classification: "context-overflow",
+    retry: false,
+  },
+  {
+    status: 400,
+    error_type: "TOO_MANY_TOKENS",
+    message:
+      "too many tokens: max tokens must be less than or equal to 4096, the maximum output length for this model - received 1000000.",
+    tag: "InvalidRequest",
+    retry: false,
+  },
+  { status: 402, message: "Please add or update your payment method to continue", tag: "QuotaExceeded", retry: false },
+  {
+    status: 429,
+    message: "You are using a Trial key, which is limited to 40 API calls / minute.",
+    tag: "RateLimit",
+    retry: true,
+  },
+  { status: 500, message: "internal server error", tag: "ProviderInternal", retry: true },
+]
+
+it.effect("Cohere HTTP errors map to AI error reasons", () =>
+  Effect.forEach(errors, (item) =>
+    Effect.gen(function* () {
+      const error = yield* LLMClient.generate(
+        LLM.request({ model: cohere.model("command-a-03-2025"), prompt: "Hi" }),
+      ).pipe(
+        Effect.provide(
+          fixedResponse(JSON.stringify({ id: "fixture", error_type: item.error_type, message: item.message }), {
+            status: item.status,
+            headers: { "content-type": "application/json" },
+          }),
+        ),
+        Effect.flip,
+      )
+      expect({
+        message: error.message,
+        tag: error.reason._tag,
+        classification: error.reason._tag === "InvalidRequest" ? error.reason.classification : undefined,
+        retry: isRetryable(error),
+      }).toEqual({ message: item.message, tag: item.tag, classification: item.classification, retry: item.retry })
+    }),
+  ),
+)
@@ -0,0 +1,169 @@
+import { describe, expect } from "bun:test"
+import { Effect, Schema } from "effect"
+import { HttpClientRequest } from "effect/unstable/http"
+import { LLM, LLMEvent, Message } from "../../src/index.js"
+import { Google } from "../../src/providers.js"
+import { LLMClient, RequestExecutor } from "../../src/route.js"
+import { recordedTests } from "../recorded-test.js"
+import { weatherTool } from "../recorded-scenarios.js"
+
+const model = Google.configure({ apiKey: process.env.GEMINI_API_KEY ?? "fixture" }).interactions("gemini-3.8-flash")
+const recorded = recordedTests({
+  prefix: "google-interactions",
+  provider: "google",
+  protocol: "google-interactions",
+  requires: ["GEMINI_API_KEY"],
+})
+const InteractionMetadata = Schema.Struct({ interactionId: Schema.String })
+
+describe("Google Interactions recorded", () => {
+  recorded.effect("streams text and reports usage", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          model,
+          prompt: "Reply with exactly one word: hello",
+          generation: { maxTokens: 2048 },
+          providerOptions: { thinkingLevel: "low" },
+        }),
+      )
+
+      expect(response.text.trim().toLowerCase()).toBe("hello")
+      expect(response.events.some(LLMEvent.is.textDelta)).toBe(true)
+      expect(response.finishReason.normalized).toBe("stop")
+      expect(response.events.filter(LLMEvent.is.finish)).toHaveLength(1)
+      expect(response.usage?.inputTokens).toBeGreaterThan(0)
+      expect(response.usage?.contextTokens).toBeGreaterThan(0)
+      expect(response.usage?.providerMetadata?.google).toMatchObject({ total_input_tokens: expect.any(Number) })
+    }),
+  )
+
+  recorded.effect(
+    "streams reasoning and retains thought signatures",
+    () =>
+      Effect.gen(function* () {
+        const response = yield* LLMClient.generate(
+          LLM.request({
+            model,
+            prompt:
+              "Find the smallest positive integer that leaves remainder 1 modulo 7, 2 modulo 9, and 3 modulo 11. Explain briefly.",
+            generation: { maxTokens: 4096 },
+            providerOptions: { thinkingLevel: "high", thinkingSummaries: "auto" },
+          }),
+        )
+
+        expect(response.reasoning.length).toBeGreaterThan(0)
+        expect(response.events.some(LLMEvent.is.reasoningDelta)).toBe(true)
+        expect(response.events.filter(LLMEvent.is.reasoningEnd)).toEqual(
+          expect.arrayContaining([
+            expect.objectContaining({
+              providerMetadata: { google: { interactionSignature: expect.any(String) } },
+            }),
+          ]),
+        )
+        expect(response.text.length).toBeGreaterThan(0)
+        expect(response.finishReason.normalized).toBe("stop")
+      }),
+    120_000,
+  )
+
+  recorded.effect(
+    "replays native tool results and signatures statelessly",
+    () =>
+      Effect.gen(function* () {
+        const request = LLM.request({
+          model,
+          system: "Use get_weather for weather questions. Answer concisely after receiving the result.",
+          prompt: "What is the weather in Paris?",
+          tools: [weatherTool],
+          toolChoice: { type: "tool", name: weatherTool.name },
+          generation: { maxTokens: 2048 },
+          providerOptions: { thinkingLevel: "low", thinkingSummaries: "auto" },
+        })
+        const first = yield* LLMClient.generate(request)
+
+        expect(first.toolCalls).toHaveLength(1)
+        expect(first.events.some(LLMEvent.is.toolInputDelta)).toBe(true)
+        expect(first.finishReason.normalized).toBe("tool-calls")
+        const call = first.toolCalls[0]
+        if (!call) throw new Error("Missing recorded weather tool call")
+        expect(call.name).toBe(weatherTool.name)
+        expect(call.input).toEqual({ city: "Paris" })
+        expect(call.providerMetadata?.google).toHaveProperty("interactionSignature")
+        const second = yield* LLMClient.generate(
+          LLM.request({
+            model,
+            system: request.system,
+            tools: [weatherTool],
+            toolChoice: "none",
+            generation: { maxTokens: 2048 },
+            providerOptions: { thinkingLevel: "low", thinkingSummaries: "auto" },
+            messages: [
+              ...request.messages,
+              first.message,
+              Message.tool({ id: call.id, name: call.name, result: { temperature: 22, condition: "sunny" } }),
+            ],
+          }),
+        )
+
+        expect(second.text.toLowerCase()).toContain("sunny")
+        expect(second.text).toContain("22")
+        expect(second.toolCalls).toHaveLength(0)
+        expect(second.finishReason.normalized).toBe("stop")
+      }),
+    120_000,
+  )
+
+  recorded.effect(
+    "continues tool results with previous interaction id",
+    () =>
+      Effect.gen(function* () {
+        const request = LLM.request({
+          model,
+          system: "Use get_weather for weather questions. Answer concisely after receiving the result.",
+          prompt: "What is the weather in Paris?",
+          tools: [weatherTool],
+          toolChoice: "required",
+          generation: { maxTokens: 2048 },
+          providerOptions: { thinkingLevel: "low", store: true },
+        })
+        const first = yield* LLMClient.generate(request)
+        const metadata = yield* Schema.decodeUnknownEffect(InteractionMetadata)(
+          first.events.find(LLMEvent.is.finish)?.providerMetadata?.google,
+        )
+        const executor = yield* RequestExecutor.Service
+        const cleanup = executor
+          .execute(
+            HttpClientRequest.delete(
+              `https://generativelanguage.googleapis.com/v1beta/interactions/${metadata.interactionId}`,
+            ).pipe(HttpClientRequest.setHeader("x-goog-api-key", process.env.GEMINI_API_KEY ?? "fixture")),
+          )
+          .pipe(Effect.orDie)
+
+        yield* Effect.gen(function* () {
+          expect(first.toolCalls).toHaveLength(1)
+          const call = first.toolCalls[0]
+          if (!call) throw new Error("Missing recorded weather tool call")
+          const second = yield* LLMClient.generate(
+            LLM.request({
+              model,
+              system: request.system,
+              tools: [weatherTool],
+              toolChoice: "none",
+              generation: { maxTokens: 2048 },
+              providerOptions: { thinkingLevel: "low", previousInteractionId: metadata.interactionId, store: false },
+              messages: [
+                Message.tool({ id: call.id, name: call.name, result: { temperature: 22, condition: "sunny" } }),
+              ],
+            }),
+          )
+
+          expect(second.text.toLowerCase()).toContain("sunny")
+          expect(second.text).toContain("22")
+          expect(second.toolCalls).toHaveLength(0)
+          expect(second.finishReason.normalized).toBe("stop")
+        }).pipe(Effect.ensuring(cleanup))
+      }),
+    120_000,
+  )
+})
@@ -1,7 +1,7 @@
 import { describe, expect, test } from "bun:test"
 import { ConfigProvider, Effect } from "effect"
 import { HttpClientRequest } from "effect/unstable/http"
-import { LLM, LLMEvent, Message, ToolDefinition, Media } from "../../src/index.js"
+import { LLM, LLMEvent, Message, SystemPart, ToolDefinition, Media } from "../../src/index.js"
 import { Mistral } from "../../src/providers/index.js"
 import { MistralChat } from "../../src/protocols/index.js"
 import { LLMClient } from "../../src/route.js"
@@ -41,7 +41,7 @@ describe("Mistral Chat", () => {
      const prepared = yield* compileRequest(
        LLM.request({
          model,
-          system: "Initial",
+          system: [SystemPart.make("Initial\nKeep this newline."), SystemPart.make("Second instructions.")],
          messages: [
            Message.system("Updated"),
            Message.user([
@@ -105,7 +105,13 @@ describe("Mistral Chat", () => {
        reasoning_effort: "high",
      })
      expect(prepared.body.messages.slice(0, 4)).toMatchObject([
-        { role: "system", content: "Initial" },
+        {
+          role: "system",
+          content: [
+            { type: "text", text: "Initial\nKeep this newline." },
+            { type: "text", text: "Second instructions." },
+          ],
+        },
        { role: "user", content: "<system-update>\nUpdated\n</system-update>" },
        {
          role: "user",
@@ -1,7 +1,7 @@
 import { configure } from "@opencode/ai/providers/mistral"
 import { describe, expect } from "bun:test"
 import { Effect } from "effect"
-import { LLM, LLMEvent, LLMRequest, Message, ToolChoice, ToolDefinition } from "../../src/index.js"
+import { LLM, LLMEvent, LLMRequest, Message, SystemPart, ToolChoice, ToolDefinition } from "../../src/index.js"
 import { LLMClient } from "../../src/route.js"
 import { compileRequest } from "../../src/route/client.js"
 import { recordedTests } from "../recorded-test.js"
@@ -97,7 +97,10 @@ describe("Mistral recorded", () => {
        const model = configure({ apiKey, providerOptions: { reasoningEffort: "none" } }).model("mistral-small-latest")
        const firstRequest = LLM.request({
          model,
-          system: "Call lookup_weather exactly once with Paris.",
+          system: [
+            SystemPart.make("Call lookup_weather exactly once with Paris."),
+            SystemPart.make("After the tool result, describe the weather briefly."),
+          ],
          prompt: "What is the weather?",
          tools: [weather],
          toolChoice: weather,
@@ -2205,7 +2205,7 @@ describe("OpenAI Chat route", () => {
      )

      expect((yield* Ref.get(events)).some((event) => event.type === "text-delta")).toBeTrue()
-      expect(error.message).toBe("ECONNRESET: socket closed unexpectedly")
+      expect(error.message).toBe("Connection lost while reading the response: ECONNRESET: socket closed unexpectedly")
      expect(error.reason).toMatchObject({
        _tag: "Transport",
        transport: "http",
@@ -2223,7 +2223,7 @@ describe("OpenAI Chat route", () => {
        Effect.flip,
      )

-      expect(error.message).toBe("ECONNRESET: socket closed before output")
+      expect(error.message).toBe("Connection lost while reading the response: ECONNRESET: socket closed before output")
      expect(error.reason).toMatchObject({
        _tag: "Transport",
        transport: "http",
@@ -2,6 +2,7 @@
  "$schema": "https://json.schemastore.org/tsconfig.json",
  "extends": "@tsconfig/bun/tsconfig.json",
  "compilerOptions": {
+    "noUnusedLocals": true,
    "module": "NodeNext",
    "moduleResolution": "NodeNext",
    "allowImportingTsExtensions": false,
@@ -0,0 +1,87 @@
+import { fileURLToPath } from "node:url"
+import { expect, story } from "../../storybook/playwright/story"
+
+const source = (path: string) => `/@fs/${fileURLToPath(new URL(path, import.meta.url)).replaceAll("\\", "/")}`
+
+const modules = {
+  fixture: source("../../gui-extensions/src/browser/panel.fixture.tsx"),
+  host: source("../src/runtime/extension/host.tsx"),
+  panels: source("../src/runtime/extension/panels.tsx"),
+  language: source("../src/runtime/i18n/language.tsx"),
+  browser: source("../../gui-extensions/src/browser/index.ts"),
+  browserRenderer: source("../../gui-extensions/src/browser/renderer.tsx"),
+  file: source("../../gui-extensions/src/file/index.ts"),
+  fileRenderer: source("../../gui-extensions/src/file/renderer.tsx"),
+}
+
+story.beforeEach(async ({ mount, page }) => {
+  // Any story loads the app styles; the fixture mounts the real side region and extensions beside it.
+  await mount("ui-line-comment--editor")
+  await page.evaluate(async (modules) => {
+    const [{ mountBrowserRegion }, host, panels, language, browser, file] = await Promise.all([
+      import(modules.fixture),
+      import(modules.host),
+      import(modules.panels),
+      import(modules.language),
+      import(modules.browser),
+      import(modules.file),
+    ])
+
+    mountBrowserRegion({
+      LanguageProvider: language.LanguageProvider,
+      ExtensionHostProvider: host.ExtensionHostProvider,
+      useExtensionHost: host.useExtensionHost,
+      createRegion: panels.createRegion,
+      definitions: [
+        { ...browser.default, renderer: () => import(modules.browserRenderer) },
+        { ...file.default, renderer: () => import(modules.fileRenderer) },
+      ],
+    })
+  }, modules)
+})
+
+story("keeps a restored browser tab selected and undrawn until the desktop's first inventory", async ({ page }) => {
+  const root = page.getByTestId("browser-region-fixture")
+  const tabs = root.getByRole("tab")
+  const tree = root.getByTestId("tree")
+  await expect(root.getByText("Registrations: 1", { exact: true })).toBeVisible()
+  await expect(tabs).toHaveText(["alpha.ts"])
+  await expect(tree).toHaveText('{"tab":"changes"}')
+
+  // Beta was left on its browser tab, which the desktop has not reported yet.
+  await root.getByRole("button", { name: "Beta", exact: true }).click()
+  await expect(root.getByText("Registrations: 2", { exact: true })).toBeVisible()
+  await expect(root.getByTestId("selected")).toHaveText(/^browser:tab_/)
+  await expect(tabs).toHaveText(["beta.ts"])
+  // No fallback tab was selected, so the file tab's selection never switched the tree to All files.
+  await expect(tree).toHaveText('{"tab":"changes"}')
+
+  await root.getByRole("button", { name: "First inventory", exact: true }).click()
+  await expect(tabs).toHaveText(["beta.ts", "Preview"])
+  await expect(root.getByRole("tab", { name: "Preview", exact: true })).toHaveAttribute("aria-selected", "true")
+  await expect(tree).toHaveText('{"tab":"changes"}')
+})
+
+story(
+  "keeps the browser tabs while the pane's Ipc is away and registers them again when it returns",
+  async ({ page }) => {
+    const root = page.getByTestId("browser-region-fixture")
+    const tabs = root.getByRole("tab")
+    await expect(root.getByText("Registrations: 1", { exact: true })).toBeVisible()
+    await root.getByRole("button", { name: "Beta", exact: true }).click()
+    await expect(root.getByText("Registrations: 2", { exact: true })).toBeVisible()
+    await root.getByRole("button", { name: "First inventory", exact: true }).click()
+    await expect(tabs).toHaveText(["beta.ts", "Preview"])
+
+    // The pane's main extension reloads: every binding goes with it, and the strip keeps the tab it will restore.
+    await root.getByRole("button", { name: "Pane away", exact: true }).click()
+    await expect(tabs).toHaveText(["beta.ts", "Preview"])
+    await expect(root.getByRole("tab", { name: "Preview", exact: true })).toHaveAttribute("aria-selected", "true")
+
+    // Both attachments register again at once, without a retry timer; Beta hands main the tab to restore.
+    await root.getByRole("button", { name: "Pane back", exact: true }).click()
+    await expect(root.getByText("Registrations: 4", { exact: true })).toBeVisible()
+    await expect(root.getByText("Beta restores: 1", { exact: true })).toBeVisible()
+    await expect(tabs).toHaveText(["beta.ts", "Preview"])
+  },
+)
@@ -2,23 +2,25 @@ import { fileURLToPath } from "node:url"
 import { expect, story } from "../../storybook/playwright/story"

 const source = (path: string) => `/@fs/${fileURLToPath(new URL(path, import.meta.url)).replaceAll("\\", "/")}`
+
 const modules = {
  fixture: source("../../gui-extensions/src/browser/panel.fixture.tsx"),
-  surface: source("../src/runtime/extension/surface.tsx"),
+  embeds: source("../src/runtime/extension/embeds.tsx"),
  language: source("../src/runtime/i18n/language.tsx"),
 }

 story.beforeEach(async ({ mount, page }) => {
-  // Any story loads the app styles; the fixture mounts the pane beside it on the real host surface.
+  // Any story loads the app styles; the fixture mounts the pane beside it on the real host embeds.
  await mount("ui-line-comment--editor")
  await page.evaluate(async (modules) => {
-    const [{ mountBrowserPane }, { createSurfaces }, language] = await Promise.all([
+    const [{ mountBrowserPane }, { createEmbeds }, language] = await Promise.all([
      import(modules.fixture),
-      import(modules.surface),
+      import(modules.embeds),
      import(modules.language),
    ])
+
    mountBrowserPane({
-      createSurfaces,
+      createEmbeds,
      LanguageProvider: language.LanguageProvider,
      UiI18nBridge: language.UiI18nBridge,
      useLanguage: language.useLanguage,
@@ -26,6 +28,7 @@ story.beforeEach(async ({ mount, page }) => {
  }, modules)
  await expect(page.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
 })
+
 story("hides a native page when another takes the pane, the pane hides, or it unmounts", async ({ page }) => {
  const root = page.getByTestId("browser-pane-fixture")
  const alpha = root.getByTestId("native-Alpha")
@@ -50,11 +53,14 @@ story("hides the native view immediately while the pane stays mounted", async ({
  const root = page.getByTestId("browser-pane-fixture")
  const toggle = root.getByRole("button", { name: "Toggle Review tab", exact: true })
  await expect(toggle).toBeEnabled()
+
  // Read in the same task as the click so a deferred animation-frame hide cannot pass.
  const visible = await toggle.evaluate((element) => {
    element.dispatchEvent(new MouseEvent("click", { bubbles: true }))
+
    return document.querySelector('[data-testid="native-Alpha"]')?.getAttribute("data-visible")
  })
+
  expect(visible).toBe("false")
  await expect(root.locator("#browser-panel")).toHaveCount(1)
  await toggle.click()
@@ -108,6 +114,19 @@ story("comments on a picked element over a still of the page", async ({ page })
  await expect(root.locator('[data-component="browser-comment"]')).toHaveCount(0)
  await expect(root.getByText("Highlights: clear", { exact: true })).toBeVisible()
  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+
+  // The pane stays mounted when Beta is routed, and its picker then listens to Beta's page.
+  await root.getByRole("button", { name: "Beta", exact: true }).click()
+  await expect(root.getByTestId("native-Beta")).toHaveAttribute("data-visible", "true")
+  await picker.click()
+  await root.getByRole("button", { name: "Pick element", exact: true }).click()
+  await expect(editor).toBeFocused()
+  await editor.fill("Beta's button too")
+  await editor.press("Enter")
+  await expect(root.getByTestId("fixture-comments").getByRole("listitem")).toHaveText([
+    "button.primary @e7: Make this the primary colour",
+    "button.primary @e7: Beta's button too",
+  ])
 })

 story("cancels the picker and a comment with Escape", async ({ page }) => {
@@ -157,6 +176,7 @@ story("keeps the comment editor and its actions inside the page", async ({ page
    .poll(async () => {
      const surface = await root.locator('[data-component="browser-comment"]').boundingBox()
      const box = await editor.boundingBox()
+
      return !!surface && !!box && box.y + box.height <= surface.y + surface.height
    })
    .toBe(true)
@@ -0,0 +1,84 @@
+import { fileURLToPath } from "node:url"
+import type { Definition } from "@opencode/gui-extensions/sdk"
+import { expect, story } from "../../storybook/playwright/story"
+
+const source = (path: string) => `/@fs/${fileURLToPath(new URL(path, import.meta.url)).replaceAll("\\", "/")}`
+
+const modules = {
+  fixture: source("./extension-host.fixture.tsx"),
+  builtins: source("../../gui-extensions/src/renderer.ts"),
+}
+
+story.beforeEach(async ({ mount }) => {
+  // Any story loads the app; the fixture mounts the real host beside it.
+  await mount("ui-line-comment--editor")
+})
+
+// The built-in renderer composition as a graph: `requires` edges must not form a cycle, and every optional (`uses`)
+// edge gets one row that boots the real host with that provider disabled. The first row disables nothing.
+story("built-ins: no requires cycle, and each consumer activates without each optional provider", async ({ page }) => {
+  const result = await page.evaluate(async (modules) => {
+    const [{ mountExtensions, until }, { builtins }] = await Promise.all([
+      import(modules.fixture),
+      import(modules.builtins),
+    ])
+
+    // The window this host serves has no OS, so OS-specific built-ins are left out as the app leaves them out.
+    const composition: readonly Definition[] = builtins
+    const definitions = composition.filter((definition) => !definition.os)
+    const ids = (tokens: Definition["provides"]) => Object.values(tokens ?? {}).map((token) => token.id)
+    const providerOf = (token: string) => definitions.find((definition) => ids(definition.provides).includes(token))?.id
+
+    const requires = new Map(
+      definitions.map((definition) => [
+        definition.id,
+        ids(definition.requires).flatMap((token) => providerOf(token) ?? []),
+      ]),
+    )
+
+    const cycles = definitions.flatMap((definition) => {
+      const walk = (id: string, path: readonly string[]): string[][] =>
+        path.includes(id)
+          ? id === definition.id
+            ? [[...path, id]]
+            : []
+          : (requires.get(id) ?? []).flatMap((next) => walk(next, [...path, id]))
+
+      return walk(definition.id, [])
+    })
+
+    // A renderer that uses the Ipc its own main entry provides depends on no other extension.
+    const edges = definitions.flatMap((consumer) =>
+      ids(consumer.uses).flatMap((token) => {
+        const provider = providerOf(token)
+
+        return provider && provider !== consumer.id ? [{ consumer: consumer.id, provider, token }] : []
+      }),
+    )
+
+    const rows = [{ consumer: "*", provider: "", token: "" }, ...edges]
+    const outcomes = []
+
+    for (const row of rows) {
+      const host = mountExtensions({ definitions, disabled: row.provider ? [row.provider] : [] })
+      host.release()
+      await until(() => host.ready())
+      const consumers = row.consumer === "*" ? definitions.map((definition) => definition.id) : [row.consumer]
+      outcomes.push({
+        ...row,
+        results: consumers.map((id) => ({ id, status: host.status(id), failure: host.failure(id)?.error ?? null })),
+      })
+      host.unmount()
+    }
+
+    return { cycles, outcomes }
+  }, modules)
+
+  expect(result.cycles).toEqual([])
+  expect(result.outcomes).toEqual(
+    result.outcomes.map((outcome) => ({
+      ...outcome,
+      results: outcome.results.map((item) => ({ id: item.id, status: "active", failure: null })),
+    })),
+  )
+})
@@ -1,21 +1,138 @@
 import { DialogProvider } from "@opencode/ui/context/dialog"
-import type { Setup } from "@opencode/gui-extensions/sdk"
-import { createSignal } from "solid-js"
+import {
+  Panel,
+  type Appearance,
+  type Build,
+  type Definition,
+  type Keybinds,
+  type Layout,
+  type Locale,
+  type MountedSession,
+  type Router,
+  type Servers,
+  type SessionScreen,
+  type Setup,
+  type Storage,
+  type StoreOptions,
+  type Workspaces,
+} from "@opencode/gui-extensions/sdk"
+import { createMemo, createSignal, getOwner, onCleanup, runWithOwner, Show, type ParentProps } from "solid-js"
+import { createStore, produce } from "solid-js/store"
+import { Schema } from "effect"
 import { render } from "solid-js/web"
-import { ExtensionHostProvider, useExtensionHost } from "../src/runtime/extension/host"
+import { PlatformProvider, type Platform } from "@/runtime/platform/platform"
+import { Persist, persisted } from "@/runtime/persistence/storage"
+import { ServerScope } from "@/runtime/server/scope"
+import { ExtensionHostProvider, useExtensionHost, type HostApiFactories } from "../src/runtime/extension/host"
+import { createHostApis } from "../src/runtime/extension/host-apis"
+import { createRegion, RegionContent } from "../src/runtime/extension/panels"
+import { ExtensionSlot } from "../src/runtime/extension/render"
+import { persistedHandle } from "../src/runtime/extension/stores"
 import { LanguageProvider } from "../src/runtime/i18n/language"

+export { Contract, createKeyed, Panel, Slot, Store } from "@opencode/gui-extensions/sdk"
+
+export { Schema }
+
+type ExtensionHost = ReturnType<typeof useExtensionHost>
+
+/** What the app interface hands the real host APIs when it mounts. */
+type Interface = Parameters<ReturnType<typeof createHostApis>["attach"]>[0]
+
+/** The host APIs a mounted fixture created, once it rendered. */
+type Captured = { apis?: ReturnType<typeof createHostApis> }
+
+/** A value the fixture's storage holds as JSON. */
+type Json = string | number | boolean | null | readonly Json[] | { readonly [key: string]: Json }
+
+export { createMemo, createSignal, getOwner, onCleanup, runWithOwner }
+
+const layout: Layout = {
+  narrow: () => false,
+  ready: () => true,
+  open() {},
+  close() {},
+  toggle() {},
+  state: () => "closed",
+  stored: () => [],
+  side: { opened: () => false, toggle() {} },
+  sidebar: { opened: () => true },
+  dock: { opened: () => false, placement: () => "bottom" },
+  scroll: { get: () => undefined, set() {} },
+  settings() {},
+  project() {},
+}
+
+const build: Build = { version: "", channel: "dev", platform: "desktop", packaged: false }
+
+const locale: Locale = { locale: () => "en", direction: () => "ltr", setDirection() {} }
+
+const appearance: Appearance = { font: () => "monospace" }
+
+const router: Router = { routing: () => false, path: () => "/" }
+
+const keybinds: Keybinds = { keybind: () => [], keys: (bind) => bind.split("+"), matches: () => false }
+
+const servers: Servers = { list: () => [] }
+
+const workspaces: Workspaces = { on: () => () => undefined }
+
+/** Every HostApi faked at its boundary, with the given storage. */
+function fakeApis(storage: (extension: string) => Storage): HostApiFactories {
+  return {
+    build: () => build,
+    locale: () => locale,
+    appearance: () => appearance,
+    router: () => router,
+    keybinds: () => keybinds,
+    servers: () => servers,
+    workspaces: () => workspaces,
+    desktop: () => undefined,
+    sessions: () => ({ list: () => [], current: () => undefined }),
+    screen: () => ({ current: () => undefined }),
+    layout: () => layout,
+    storage,
+    system: () => ({ copy: async () => {}, save: async () => false, openExternal() {} }),
+    embeds: () => ({ View: () => null, capture: async () => undefined }),
+  }
+}
+
+/** The fake HostApis' app interface, which is always mounted: a dialog shows at once. */
+function mounted(run: () => void) {
+  run()
+
+  return () => undefined
+}
+
+/** Storage that no test of `mountExtensionHost` reads. */
+const unused = (): Storage => {
+  throw new Error("The fixture extension reads no storage")
+}
+
+/** Resolves once `check` holds, checking every frame; rejects after five seconds. */
+export async function until(check: () => boolean) {
+  const deadline = performance.now() + 5000
+
+  while (!check()) {
+    if (performance.now() > deadline) throw new Error("The fixture never reached the expected state")
+    await new Promise((resolve) => requestAnimationFrame(resolve))
+  }
+}
+
 /** Mounts the real extension host with one extension whose every renderer load settles when the test says so. */
 export function mountExtensionHost() {
-  const loads: PromiseWithResolvers<{ default: Setup }>[] = []
+  const loads: PromiseWithResolvers<{ default: Setup<Definition> }>[] = []
  const [disabled, setDisabled] = createSignal<ReadonlySet<string>>(new Set())
-  const state = { host: undefined as ReturnType<typeof useExtensionHost> | undefined }
+  const hosts: ExtensionHost[] = []
  const container = document.createElement("div")
  document.body.appendChild(container)
+
  function Capture() {
-    state.host = useExtensionHost()
+    hosts.push(useExtensionHost())
+
    return null
  }
+
  const dispose = render(
    () => (
      <LanguageProvider locale="en">
@@ -25,14 +142,16 @@ export function mountExtensionHost() {
              {
                id: "fixture",
                renderer: () => {
-                  const load = Promise.withResolvers<{ default: Setup }>()
+                  const load = Promise.withResolvers<{ default: Setup<Definition> }>()
                  loads.push(load)
+
                  return load.promise
                },
              },
            ]}
            disabled={disabled}
-            services={[]}
+            apis={fakeApis(unused)}
+            whenMounted={mounted}
          >
            <Capture />
          </ExtensionHostProvider>
@@ -41,22 +160,359 @@ export function mountExtensionHost() {
    ),
    container,
  )
+
  return {
    unmount: () => {
      dispose()
      container.remove()
    },
    /** Resolves the nth renderer load (the first by default) with this setup. */
-    load: (setup: Setup, index = 0) => loads[index].resolve({ default: setup }),
+    load: (setup: Setup<Definition>, index = 0) => loads[index].resolve({ default: setup }),
    /** Rejects the nth renderer load. */
-    fail: (index: number, error: unknown) => loads[index].reject(error),
+    fail: (index: number, cause: unknown) => loads[index].reject(cause),
    /** Renderer loads requested so far. */
    count: () => loads.length,
-    reload: () => state.host?.reload("fixture"),
+    reload: () => hosts[0]?.reload("fixture"),
    disable: () => setDisabled(new Set(["fixture"])),
    enable: () => setDisabled(new Set<string>()),
-    status: () => state.host?.state.status.fixture,
+    status: () => hosts[0]?.state.status.fixture,
    /** Contributions the host holds for a point; readable after the host unmounts. */
-    entries: (point: string) => state.host?.state.entries[point]?.length ?? 0,
+    entries: (point: string) => hosts[0]?.state.entries[point]?.length ?? 0,
+  }
+}
+
+/**
+ * Mounts the real host over these definitions, before any session mounts, with the HostApis faked at their
+ * boundary. Storage is the real persisted store of a desktop window whose reads wait until `release()`; `stored` seeds
+ * it. Renders the `window.bottom` slot once the startup gate opens.
+ */
+export function mountExtensions(input: {
+  definitions: readonly Definition[]
+  disabled?: readonly string[]
+  stored?: Readonly<Record<string, Json>>
+}) {
+  const held = Promise.withResolvers<void>()
+  const [disabled, setDisabled] = createSignal<ReadonlySet<string>>(new Set(input.disabled ?? []))
+  const hosts: ExtensionHost[] = []
+  const container = document.createElement("div")
+  document.body.appendChild(container)
+
+  const platform: Platform = {
+    platform: "desktop",
+    windowID: "extension-host-fixture",
+    openExternal: () => undefined,
+    openDirectoryPickerDialog: async () => null,
+    restart: async () => undefined,
+    notify: async () => undefined,
+    storage: () => ({
+      getItem: async (key: string) => {
+        await held.promise
+
+        return key in (input.stored ?? {}) ? JSON.stringify(input.stored?.[key]) : null
+      },
+      setItem: async () => undefined,
+      removeItem: async () => undefined,
+    }),
+  }
+
+  const storage = (extension: string): Storage => ({
+    store<S extends Schema.ConstraintCodec<object, unknown>>(key: string, options: StoreOptions<S>) {
+      const pair = persisted(Persist.global(`extension.${extension}.${key}`), options.schema, options.initial, platform)
+
+      return persistedHandle({ store: pair[0], set: pair[1], init: pair[3].promise })
+    },
+    memory: (_key, options) => {
+      const [value, set] = createStore(options.initial)
+
+      return [value, (mutation) => set(produce(mutation))] as const
+    },
+    remove() {},
+  })
+
+  function MountedHost() {
+    return (
+      <ExtensionHostProvider
+        definitions={input.definitions}
+        disabled={disabled}
+        apis={fakeApis(storage)}
+        whenMounted={mounted}
+      >
+        <Capture />
+      </ExtensionHostProvider>
+    )
+  }
+
+  function Capture() {
+    const host = useExtensionHost()
+    hosts.push(host)
+
+    return (
+      <Show when={host.ready()}>
+        <ExtensionSlot at="window.bottom" input={{}} />
+      </Show>
+    )
+  }
+
+  const dispose = render(
+    () => (
+      <LanguageProvider locale="en">
+        <DialogProvider>
+          <MountedHost />
+        </DialogProvider>
+      </LanguageProvider>
+    ),
+    container,
+  )
+
+  return {
+    container,
+    unmount: () => {
+      dispose()
+      container.remove()
+    },
+    /** Lets the held storage reads answer. */
+    release: () => held.resolve(),
+    disable: (ids: readonly string[]) => setDisabled(new Set(ids)),
+    reload: (id: string) => hosts[0]?.reload(id),
+    ready: () => hosts[0]?.ready() ?? false,
+    status: (id: string) => hosts[0]?.state.status[id],
+    failure: (id: string) => hosts[0]?.state.failures[id],
+    entries: (point: string) => hosts[0]?.state.entries[point]?.length ?? 0,
+  }
+}
+
+const web: Platform = {
+  platform: "web",
+  openExternal: () => undefined,
+  restart: async () => undefined,
+  notify: async () => undefined,
+}
+
+/** A stand-in for the app interface the real host APIs attach to; each test overrides what it observes. */
+function standIn(overrides: Partial<Interface>): Interface {
+  return {
+    sessions: () => [],
+    current: () => undefined,
+    screen: () => undefined,
+    scope: () => ServerScope.local,
+    scoped: () => undefined,
+    layout: {
+      ready: () => true,
+      open() {},
+      close() {},
+      toggle() {},
+      state: () => "closed",
+      stored: () => [],
+      side: { opened: () => true, toggle() {} },
+      sidebar: { opened: () => false },
+      dock: { opened: () => false, placement: () => "bottom" },
+      scroll: { get: () => undefined, set() {} },
+    },
+    settings() {},
+    project() {},
+    font: () => "fixture mono",
+    routing: () => false,
+    path: () => "/",
+    keybind: () => [],
+    matches: () => false,
+    servers: () => ["local"],
+    ...overrides,
+  }
+}
+
+/** The real host over the real HostApis of a web window; `mounted`, when given, attaches as the app interface. */
+function RealHost(props: ParentProps<{ definitions: readonly Definition[]; captured: Captured; mounted?: Interface }>) {
+  const apis = createHostApis()
+  props.captured.apis = apis
+
+  if (props.mounted) onCleanup(apis.attach(props.mounted))
+
+  return (
+    <ExtensionHostProvider
+      definitions={props.definitions}
+      disabled={() => new Set<string>()}
+      apis={apis.apis}
+      whenMounted={apis.whenMounted}
+    >
+      {props.children}
+    </ExtensionHostProvider>
+  )
+}
+
+/**
+ * Mounts the real host and HostApis, and the parts of the session screen that render extension content for the routed
+ * session: the side region (`createRegion`, `RegionContent`) with every panel's tabs stored, and the
+ * `session.panel.end` slot, whose input the screen builds this way. `route(id)` routes a session the way the screen
+ * does: a new session object each time, delivered through the same reactive inputs, while the one screen object
+ * `ctx.screen` returns follows the route. Its composer records which session each attachment reached.
+ */
+export function mountSessionRegion(input: { definitions: readonly Definition[]; active: string }) {
+  const container = document.createElement("div")
+  document.body.appendChild(container)
+  const hosts: ExtensionHost[] = []
+  const captured: Captured = {}
+  const attached: string[] = []
+
+  const object = (id: string) => {
+    const value = { key: `fixture\n${id}`, id, tab: id, pending: false, location: { directory: "/repo" }, visit: {} }
+
+    // SAFETY: the region and slot pass the object through; the test's extension reads only `key` and `id`.
+    // oxlint-disable-next-line anti-slop/no-chained-type-assertions -- see SAFETY above
+    return value as unknown as MountedSession
+  }
+
+  const [view, setView] = createSignal(object("a"))
+
+  const route = {
+    get session() {
+      return view()
+    },
+    composer: { attach: () => void attached.push(view().id), update() {}, detach() {} },
+  }
+
+  // SAFETY: the test's extension reads only `session` and `composer.attach` of the screen.
+  // oxlint-disable-next-line anti-slop/no-chained-type-assertions -- see SAFETY above
+  const screen = route as unknown as SessionScreen
+
+  const sidebar = { opened: () => false, width: () => 0, transition: () => false, resize() {}, toggle() {} }
+
+  function Region() {
+    const host = useExtensionHost()
+    hosts.push(host)
+    // Every panel's `main` tab is stored, and `active` selected, as a strip restored after a reload.
+    const all = () => host.items(Panel).map((item) => `${item.extension}:main`)
+
+    const region = createRegion({
+      region: "side",
+      view,
+      tabs: () => ({
+        all,
+        active: () => input.active,
+        setAll() {},
+        setActive() {},
+        close() {},
+        remap() {},
+      }),
+    })
+
+    return (
+      <Show when={host.ready()}>
+        <ExtensionSlot
+          at="session.panel.end"
+          input={{
+            get session() {
+              return view()
+            },
+          }}
+        />
+        <RegionContent
+          region={region}
+          view={view()}
+          frame={{
+            shown: () => true,
+            present: () => true,
+            placement: () => "side",
+            reserve: () => false,
+            animate: () => false,
+            sidebar,
+          }}
+        />
+      </Show>
+    )
+  }
+
+  const dispose = render(
+    () => (
+      <LanguageProvider locale="en">
+        <PlatformProvider value={web}>
+          <DialogProvider>
+            <RealHost
+              definitions={input.definitions}
+              captured={captured}
+              mounted={standIn({ current: view, screen: () => screen })}
+            >
+              <Region />
+            </RealHost>
+          </DialogProvider>
+        </PlatformProvider>
+      </LanguageProvider>
+    ),
+    container,
+  )
+
+  return {
+    container,
+    /** Routes a session: the screen creates a new session object for it. */
+    route: (id: string) => setView(object(id)),
+    /** The session each composer attachment reached, in order. */
+    attached,
+    status: (id: string) => hosts[0]?.state.status[id],
+    unmount: () => {
+      dispose()
+      container.remove()
+    },
+  }
+}
+
+/**
+ * Mounts the real host over the real HostApis of a web window, before the app interface mounts. `attach()` mounts a
+ * stand-in for the interface: its layout records each write and reports a tab it opened as visible, its server is
+ * the local one, and its mono font is "fixture mono".
+ */
+export function mountHostApis(input: { definitions: readonly Definition[] }) {
+  const container = document.createElement("div")
+  document.body.appendChild(container)
+  const writes: string[] = []
+  const [opened, setOpened] = createSignal<readonly string[]>([])
+  const hosts: ExtensionHost[] = []
+  const captured: Captured = {}
+  const layout = standIn({}).layout
+
+  const mounted = standIn({
+    layout: {
+      ...layout,
+      open(key) {
+        writes.push(`open ${key}`)
+        setOpened((keys) => [...keys, key])
+      },
+      close: (key) => void writes.push(`close ${key}`),
+      toggle: (key) => void writes.push(`toggle ${key}`),
+      state: (key) => (opened().includes(key) ? "visible" : "closed"),
+      scroll: { get: () => undefined, set: (_session, key) => void writes.push(`scroll ${key}`) },
+    },
+    settings: (page) => void writes.push(`settings ${page}`),
+  })
+
+  function Capture() {
+    hosts.push(useExtensionHost())
+
+    return null
+  }
+
+  const dispose = render(
+    () => (
+      <LanguageProvider locale="en">
+        <PlatformProvider value={web}>
+          <DialogProvider>
+            <RealHost definitions={input.definitions} captured={captured}>
+              <Capture />
+            </RealHost>
+          </DialogProvider>
+        </PlatformProvider>
+      </LanguageProvider>
+    ),
+    container,
+  )
+
+  return {
+    /** Layout writes the interface received, in order. */
+    writes,
+    /** Mounts the interface. */
+    attach: () => void captured.apis?.attach(mounted),
+    status: (id: string) => hosts[0]?.state.status[id],
+    unmount: () => {
+      dispose()
+      container.remove()
+    },
  }
 }
@@ -1,9 +1,19 @@
 import { fileURLToPath } from "node:url"
-import type { Context, Dialogs } from "@opencode/gui-extensions/sdk"
+import type { Owner } from "solid-js"
+import type { Context, Contract, DialogHandle, Dialogs, SessionRef } from "@opencode/gui-extensions/sdk"
 import { expect, story } from "../../storybook/playwright/story"

 const fixture = `/@fs/${fileURLToPath(new URL("./extension-host.fixture.tsx", import.meta.url)).replaceAll("\\", "/")}`

+/** What the scoped-registration case keeps from inside its extension. */
+type Scope = { owner?: Owner | null; end: () => void; ctx?: Context }
+
+/** The context the session-routing case keeps from inside its extension. */
+type Kept = { ctx?: Context }
+
+/** What the pre-mount case reads from inside its extension's setup. */
+type Reads = { state?: () => string; font?: () => string; prefs?: { value?: { count: number }; ready(): boolean } }
+
 story.beforeEach(async ({ mount }) => {
  // Any story loads the app; the fixture mounts the real host beside it.
  await mount("ui-line-comment--editor")
@@ -17,35 +27,41 @@ story("an extension that finishes loading after the host unmounts is never set u
    host.unmount()
    host.load(() => void state.setups++)
    await new Promise((resolve) => setTimeout(resolve, 100))
+
    return state.setups
  }, fixture)
+
  expect(setups).toBe(0)
 })

 story("an async setup that resolves after the host unmounts releases everything it registers", async ({ page }) => {
  const result = await page.evaluate(async (fixture) => {
-    const { mountExtensionHost } = await import(fixture)
+    const { mountExtensionHost, onCleanup } = await import(fixture)
    const host = mountExtensionHost()
    const started = Promise.withResolvers<void>()
    const resume = Promise.withResolvers<void>()
    const cleaned: string[] = []
    const point = { kind: "point" as const, id: "fixture-point" }
+    const resumed = { aborted: false }
    host.load(async (ctx: Context) => {
      ctx.add(point, "before")
+      onCleanup(() => void cleaned.push("owner"))
      started.resolve()
      await resume.promise
+      // After an await there is no owner: the signal tells the setup it outlived its instance.
+      resumed.aborted = ctx.signal.aborted
      ctx.add(point, "after")
-      ctx.cleanup(() => void cleaned.push("registered"))
-      return () => void cleaned.push("returned")
    })
    await started.promise
    const before = host.entries(point.id)
    host.unmount()
    resume.resolve()
    await new Promise((resolve) => setTimeout(resolve, 100))
-    return { before, after: host.entries(point.id), cleaned }
+
+    return { before, after: host.entries(point.id), cleaned, aborted: resumed.aborted }
  }, fixture)
-  expect(result).toEqual({ before: 1, after: 0, cleaned: ["registered", "returned"] })
+
+  expect(result).toEqual({ before: 1, after: 0, cleaned: ["owner"], aborted: true })
 })

 story("older loads neither set up nor fail over the replacement after reloads", async ({ page }) => {
@@ -62,8 +78,10 @@ story("older loads neither set up nor fail over the replacement after reloads",
    await new Promise((resolve) => setTimeout(resolve, 100))
    const outcome = { setups, status: host.status() }
    host.unmount()
+
    return outcome
  }, fixture)
+
  expect(result).toEqual({ setups: ["third"], status: "active" })
 })

@@ -71,8 +89,8 @@ story("a dialog service kept from before a reload opens and closes nothing under
  const result = await page.evaluate(async (fixture) => {
    const { mountExtensionHost } = await import(fixture)
    const host = mountExtensionHost()
-    const services: Dialogs[] = []
-    const setup = (ctx: Context) => void services.push(ctx.use({ kind: "host" as const, id: "dialog" }) as Dialogs)
+    const dialogs: Dialogs[] = []
+    const setup = (ctx: Context) => void dialogs.push(ctx.dialogs)
    const text = (value: string) => () => Object.assign(document.createElement("p"), { textContent: value })
    const shown = (value: string) => !!document.body.textContent?.includes(value)
    const wait = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms))
@@ -81,37 +99,248 @@ story("a dialog service kept from before a reload opens and closes nothing under
    host.reload()
    host.load(setup, 1)
    await wait(20)
-    const [stale, fresh] = services
-    stale.push(text("stale dialog"))
-    fresh.push(text("fresh dialog"))
+    const [stale, fresh] = dialogs
+    const kept = stale.open(text("stale dialog"))
+    fresh.open(text("fresh dialog"))
    await wait(50)
-    stale.close()
+    kept.close()
    await wait(300)
    const outcome = { stale: shown("stale dialog"), fresh: shown("fresh dialog") }
    host.unmount()
+
    return outcome
  }, fixture)
+
  expect(result).toEqual({ stale: false, fresh: true })
 })

+story("a dialog handle closes its own dialog, and a dialog closes with the scope that opened it", async ({ page }) => {
+  const result = await page.evaluate(async (fixture) => {
+    const { mountExtensionHost, createKeyed, createSignal } = await import(fixture)
+    const host = mountExtensionHost()
+    const text = (value: string) => () => Object.assign(document.createElement("p"), { textContent: value })
+
+    const shown = () =>
+      ["below", "middle", "scoped", "cancelled", "brief"].filter((value) => document.body.textContent?.includes(value))
+
+    const wait = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms))
+    const scope = { end: () => {} }
+    const handles: DialogHandle[] = []
+    host.load((ctx: Context) => {
+      const [on, set] = createSignal(true)
+      scope.end = () => set(false)
+      handles.push(ctx.dialogs.open(text("below")), ctx.dialogs.open(text("middle")))
+      createKeyed(on, () => void ctx.dialogs.open(text("scoped")))
+      // Ended in the tick they open, before the deferred opening: neither shows, and the replacing one replaces nothing.
+      ctx.dialogs.open(text("cancelled"), { replace: true }).close()
+      const [brief, end] = createSignal(true)
+      createKeyed(brief, () => void ctx.dialogs.open(text("brief")))
+      end(false)
+    }, 0)
+    await wait(100)
+    const opened = shown()
+    // The middle dialog is not on top: its handle closes it and nothing else.
+    handles[1]?.close()
+    await wait(300)
+    const closed = shown()
+    scope.end()
+    await wait(300)
+    const ended = shown()
+    host.unmount()
+
+    return { opened, closed, ended }
+  }, fixture)
+
+  expect(result).toEqual({
+    opened: ["below", "middle", "scoped"],
+    closed: ["below", "scoped"],
+    ended: ["below"],
+  })
+})
+
 story("a dialog pushed in the same tick as a reload never mounts", async ({ page }) => {
  const shown = await page.evaluate(async (fixture) => {
    const { mountExtensionHost } = await import(fixture)
    const host = mountExtensionHost()
-    const services: Dialogs[] = []
+    const dialogs: Dialogs[] = []
    const wait = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms))
-    host.load((ctx: Context) => void services.push(ctx.use({ kind: "host" as const, id: "dialog" }) as Dialogs), 0)
+    host.load((ctx: Context) => void dialogs.push(ctx.dialogs), 0)
    await wait(20)
-    services[0].push(() => Object.assign(document.createElement("p"), { textContent: "same tick dialog" }))
+    dialogs[0].open(() => Object.assign(document.createElement("p"), { textContent: "same tick dialog" }))
    host.reload()
    await wait(300)
    const outcome = !!document.body.textContent?.includes("same tick dialog")
    host.unmount()
+
    return outcome
  }, fixture)
+
  expect(shown).toBe(false)
 })

+story(
+  "routing A, B, then A again: a kept session stays A, the same screen follows the route, and no render remounts",
+  async ({ page }) => {
+    const result = await page.evaluate(async (fixture) => {
+      const { mountSessionRegion, until, Panel, Slot } = await import(fixture)
+      const mounts = { single: 0, grouped: 0, slot: 0 }
+      const inputs: Partial<Record<keyof typeof mounts, { readonly session: { readonly id: string } }>> = {}
+      const kept: Kept = {}
+      const node = () => document.createElement("p")
+
+      // One render of each kind the host has: a selected tab, a group that stays mounted, and a slot.
+      const render = (kind: keyof typeof mounts) => (input: { readonly session: { readonly id: string } }) => {
+        mounts[kind]++
+        inputs[kind] = input
+
+        return node()
+      }
+
+      const host = mountSessionRegion({
+        active: "single:main",
+        definitions: [
+          {
+            id: "single",
+            renderer: async () => ({
+              default: (ctx: Context) => {
+                const tab = { id: "main", title: "Single" }
+                kept.ctx = ctx
+                ctx.add(Panel, { id: "main", region: "side", list: () => [tab], render: render("single") })
+                ctx.add(Slot, { at: "session.panel.end", render: render("slot") })
+              },
+            }),
+          },
+          {
+            id: "grouped",
+            renderer: async () => ({
+              default: (ctx: Context) => {
+                const tab = { id: "main", title: "Grouped", group: "group" }
+                ctx.add(Panel, { id: "main", region: "side", list: () => [tab], render: render("grouped") })
+              },
+            }),
+          },
+        ],
+      })
+
+      await until(() => mounts.single > 0 && mounts.grouped > 0 && mounts.slot > 0)
+
+      // Session A's object, as an extension keeps it, and the screen while it routes A.
+      const session = kept.ctx?.sessions.current()
+      const screen = kept.ctx?.screen.current()
+
+      const seen = () => ({
+        mounts: { ...mounts },
+        sessions: [inputs.single?.session.id, inputs.grouped?.session.id, inputs.slot?.session.id],
+        kept: session?.id,
+        fresh: kept.ctx?.sessions.current() !== session,
+        screen: { same: kept.ctx?.screen.current() === screen, session: screen?.session?.id },
+      })
+
+      const steps = [seen()]
+      host.route("b")
+      steps.push(seen())
+      // An action through the screen targets the session routed now.
+      screen?.composer.attach({ type: "file", path: "notes.md" })
+      host.route("a")
+      steps.push(seen())
+      host.unmount()
+
+      return { steps, attached: host.attached }
+    }, fixture)
+
+    const step = (id: string, fresh: boolean) => ({
+      mounts: { single: 1, grouped: 1, slot: 1 },
+      sessions: [id, id, id],
+      kept: "a",
+      fresh,
+      screen: { same: true, session: id },
+    })
+
+    // Routing A again makes a new object for the new visit; the kept one still names A.
+    expect(result).toEqual({ steps: [step("a", false), step("b", true), step("a", true)], attached: ["b"] })
+  },
+)
+
+story(
+  "before the app interface mounts, host APIs read their defaults and keep writes and dialogs until it mounts",
+  async ({ page }) => {
+    const result = await page.evaluate(async (fixture) => {
+      const { mountHostApis, until, createMemo, Schema } = await import(fixture)
+      const Prefs = Schema.Struct({ count: Schema.Number })
+      const text = (value: string) => () => Object.assign(document.createElement("p"), { textContent: value })
+      const shown = () => ["kept", "cancelled"].filter((value) => document.body.textContent?.includes(value))
+      const wait = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms))
+      const fake = { key: "local\nses_fixture", id: "ses_fixture", tab: "tab", pending: false, location: undefined }
+      // SAFETY: the stand-in interface reads only the key it is given; the host APIs pass the session through.
+      // oxlint-disable-next-line anti-slop/no-chained-type-assertions -- see SAFETY above
+      const session = fake as unknown as SessionRef
+
+      const reads: Reads = {}
+
+      const host = mountHostApis({
+        definitions: [
+          {
+            id: "fixture",
+            renderer: async () => ({
+              default: (ctx: Context) => {
+                // Setup runs before the interface mounts, as every built-in's does.
+                ctx.layout.open("fixture:main", session)
+                ctx.layout.settings("fixture")
+                // A dialog waits for the interface too; one its handle closes meanwhile never shows.
+                ctx.dialogs.open(text("kept"))
+                ctx.dialogs.open(text("cancelled")).close()
+
+                const prefs = ctx.storage.store("prefs", {
+                  schema: Prefs,
+                  initial: { count: 0 },
+                  scope: { server: "local" },
+                })
+
+                prefs.update((draft) => ({ count: draft.count + 1 }))
+                reads.state = createMemo(() => ctx.layout.state("fixture:main", session))
+                reads.font = createMemo(() => ctx.appearance.font("mono"))
+                reads.prefs = prefs
+              },
+            }),
+          },
+        ],
+      })
+
+      const read = () => ({
+        state: reads.state?.(),
+        font: reads.font?.().startsWith('"JetBrainsMono Nerd Font Mono"') ? "default mono" : reads.font?.(),
+        prefs: reads.prefs?.value?.count,
+        ready: reads.prefs?.ready(),
+        writes: [...host.writes],
+        dialogs: shown(),
+      })
+
+      await until(() => host.status("fixture") === "active")
+      // Long enough for a dialog's deferred opening to have shown it.
+      await wait(300)
+      const before = read()
+      host.attach()
+      await until(() => host.writes.length === 2 && shown().length > 0)
+      const after = read()
+      host.unmount()
+
+      return { before, after }
+    }, fixture)
+
+    expect(result).toEqual({
+      before: { state: "closed", font: "default mono", prefs: undefined, ready: false, writes: [], dialogs: [] },
+      after: {
+        state: "visible",
+        font: "fixture mono",
+        prefs: 1,
+        ready: true,
+        writes: ["open fixture:main", "settings fixture"],
+        dialogs: ["kept"],
+      },
+    })
+  },
+)
+
 story("an extension reloaded while disabled starts when it is enabled again", async ({ page }) => {
  const result = await page.evaluate(async (fixture) => {
    const { mountExtensionHost } = await import(fixture)
@@ -124,6 +353,7 @@ story("an extension reloaded while disabled starts when it is enabled again", as
    await wait(20)
    host.reload()
    const afterReload = host.status()
+
    // A load the reload started finishes while the extension is still disabled.
    if (host.count() > 1) host.load(() => void setups.push("while disabled"), 1)
    await wait(20)
@@ -133,7 +363,196 @@ story("an extension reloaded while disabled starts when it is enabled again", as
    await wait(50)
    const outcome = { afterReload, setups, status: host.status() }
    host.unmount()
+
    return outcome
  }, fixture)
+
  expect(result).toEqual({ afterReload: "disabled", setups: ["first", "enabled"], status: "active" })
 })
+
+story(
+  "a registration is withdrawn with the scope that made it, and at once when that scope already ended",
+  async ({ page }) => {
+    const result = await page.evaluate(async (fixture) => {
+      const { mountExtensions, until, createKeyed, createSignal, getOwner, runWithOwner } = await import(fixture)
+      const point = { kind: "point" as const, id: "fixture-scoped" }
+      const scope: Scope = { end: () => {} }
+
+      const host = mountExtensions({
+        definitions: [
+          {
+            id: "fixture",
+            renderer: async () => ({
+              default: (ctx: Context) => {
+                const [on, set] = createSignal(true)
+                scope.end = () => set(false)
+                scope.ctx = ctx
+                createKeyed(on, () => {
+                  scope.owner = getOwner()
+                  ctx.add(point, "during")
+                })
+              },
+            }),
+          },
+        ],
+      })
+
+      await until(() => host.status("fixture") === "active")
+      const during = host.entries(point.id)
+      scope.end()
+      const ended = host.entries(point.id)
+      // A captured owner of a generation that ended, as async work resuming late would hold.
+      runWithOwner(scope.owner, () => scope.ctx?.add(point, "late"))
+      const late = host.entries(point.id)
+      host.unmount()
+
+      return { during, ended, late }
+    }, fixture)
+
+    expect(result).toEqual({ during: 1, ended: 0, late: 0 })
+  },
+)
+
+story("a contribution that throws renders nothing and records the error; the others stay", async ({ page }) => {
+  const result = await page.evaluate(async (fixture) => {
+    const { mountExtensions, until, Slot } = await import(fixture)
+    const text = (value: string) => () => Object.assign(document.createElement("p"), { textContent: value })
+
+    const host = mountExtensions({
+      definitions: [
+        {
+          id: "fixture",
+          renderer: async () => ({
+            default: (ctx: Context) => {
+              ctx.add(Slot, {
+                at: "window.bottom",
+                render: () => {
+                  throw new Error("broken contribution")
+                },
+              })
+              ctx.add(Slot, { at: "window.bottom", render: text("kept") })
+            },
+          }),
+        },
+        {
+          id: "other",
+          renderer: async () => ({
+            default: (ctx: Context) => void ctx.add(Slot, { at: "window.bottom", render: text("other") }),
+          }),
+        },
+      ],
+    })
+
+    await until(() => !!host.failure("fixture") && !!host.container.textContent?.includes("other"))
+    const failure = host.failure("fixture")
+
+    const outcome = {
+      text: host.container.textContent,
+      status: [host.status("fixture"), host.status("other")],
+      failure: { phase: failure?.phase, named: !!failure?.error.includes("broken contribution") },
+    }
+
+    host.unmount()
+
+    return outcome
+  }, fixture)
+
+  expect(result).toEqual({
+    text: "keptother",
+    status: ["active", "active"],
+    failure: { phase: "render", named: true },
+  })
+})
+
+story("an extension that requires a contract starts once it is active and restarts with it", async ({ page }) => {
+  const result = await page.evaluate(async (fixture) => {
+    const { mountExtensions, until, Contract, onCleanup } = await import(fixture)
+    const Tree: Contract<{ version: number }, "provider.tree"> = Contract.define("provider.tree")
+    const providerLoad = Promise.withResolvers<void>()
+    const log: string[] = []
+    const versions = { value: 0 }
+
+    const definitions = [
+      {
+        id: "provider",
+        provides: { tree: Tree },
+        renderer: async () => {
+          await providerLoad.promise
+
+          return { default: (ctx: Context) => void ctx.provide(Tree, { version: ++versions.value }) }
+        },
+      },
+      {
+        id: "consumer",
+        requires: { tree: Tree },
+        renderer: async () => ({
+          default: (ctx: Context & { requires: { tree: { version: number } } }) => {
+            const version = ctx.requires.tree.version
+            log.push(`setup ${version}`)
+            onCleanup(() => void log.push(`cleanup ${version}`))
+          },
+        }),
+      },
+    ]
+
+    // Hard contracts gate startup: a consumer whose provider is disabled settles the gate without starting.
+    const gated = mountExtensions({ definitions, disabled: ["provider"] })
+    await until(() => gated.ready())
+    const blocked = { status: gated.status("consumer"), log: [...log] }
+    gated.unmount()
+
+    const host = mountExtensions({ definitions })
+    await new Promise((resolve) => setTimeout(resolve, 50))
+    const waiting = { status: host.status("consumer"), log: [...log] }
+    providerLoad.resolve()
+    await until(() => host.status("consumer") === "active")
+    host.reload("provider")
+    await until(() => log.length === 3)
+    host.disable(["provider"])
+    await until(() => log.length === 4)
+    const outcome = { blocked, waiting, log, after: host.status("consumer") }
+    host.unmount()
+
+    return outcome
+  }, fixture)
+
+  expect(result).toEqual({
+    blocked: { status: "loading", log: [] },
+    waiting: { status: "loading", log: [] },
+    log: ["setup 1", "cleanup 1", "setup 2", "cleanup 2"],
+    after: "loading",
+  })
+})
+
+story("declared global stores load before setup, so setup reads the stored value", async ({ page }) => {
+  const result = await page.evaluate(async (fixture) => {
+    const { mountExtensions, until, Schema, Store } = await import(fixture)
+    const Prefs = Schema.Struct({ open: Schema.Boolean })
+    const seen: unknown[] = []
+
+    const host = mountExtensions({
+      stored: { "extension.fixture.prefs": { open: true } },
+      definitions: [
+        {
+          id: "fixture",
+          stores: { prefs: Store.global(Prefs, { open: false }) },
+          renderer: async () => ({
+            default: (ctx: Context & { stores: { prefs: { value: { open: boolean } } } }) =>
+              void seen.push(ctx.stores.prefs.value.open),
+          }),
+        },
+      ],
+    })
+
+    await new Promise((resolve) => setTimeout(resolve, 50))
+    const held = { status: host.status("fixture"), seen: [...seen] }
+    host.release()
+    await until(() => host.status("fixture") === "active")
+    const outcome = { held, seen }
+    host.unmount()
+
+    return outcome
+  }, fixture)
+
+  expect(result).toEqual({ held: { status: "loading", seen: [] }, seen: [true] })
+})
@@ -1,7 +1,6 @@
 import { expect, test } from "@playwright/test"
 import {
  defineVisualRegions,
-  mapVisualRegions,
  reportVisualStability,
  startVisualProbe,
  stopVisualProbe,
@@ -242,7 +242,7 @@ test("keeps an older answer selected while scrolling within the interaction buff

 test("tracks keyboard scrolling from a focused timeline descendant", async ({ page }, testInfo) => {
  const shellID = "prt_descendant_keyboard_01_shell"
-  const timeline = await setupTimeline(page, {
+  await setupTimeline(page, {
    messages: [...history(12), userMessage(), assistantMessage([shell(shellID, "completed", lines(5))])],
    settings: { shellToolPartsExpanded: false },
    cpuRate: 4,
@@ -15,7 +15,6 @@ import {
  partUpdated,
  renderedPartID,
  setupTimeline,
-  shell,
  status,
  textPart,
  toolPart,
@@ -1,4 +1,4 @@
-import type { CDPSession, Page } from "@playwright/test"
+import type { Page } from "@playwright/test"
 import path from "node:path"
 import { mkdir, writeFile } from "node:fs/promises"

@@ -9,16 +9,32 @@ test("answers /btw in the side panel without admitting a prompt", async ({ page
  const generations: { sessionID: string; prompt: string }[] = []
  const prompts: unknown[] = []
  const generated = Promise.withResolvers<void>()
+  const abandoned = Promise.withResolvers<void>()
  const main = { id: "ses_btw_sidebar", title: "Side question session" }
  const other = { id: "ses_btw_sidebar_other", title: "Other side question session" }
+  const ownerWarnings: string[] = []
+  page.on("console", (message) => {
+    if (message.text().includes("computations created outside a `createRoot` or `render`"))
+      ownerWarnings.push(message.text())
+  })
+
  const { editor } = await openSession(page, {
    name: "BtwSidebar",
    sessions: [main, other],
    onPrompt: (input) => prompts.push(input),
    generate: async (input) => {
      generations.push(input)
+
      if (input.sessionID === other.id) return { text: "This answer belongs to the **other session**." }
+
+      if (input.prompt.includes("left behind")) {
+        await abandoned.promise
+
+        return { text: "This answer arrived after the user left." }
+      }
+
      await generated.promise
+
      return {
        text: "The retry loop uses **exponential backoff** and stops after three attempts.\n\n```ts\nconst delay = 2 ** attempt\n```",
      }
@@ -65,8 +81,21 @@ test("answers /btw in the side panel without admitting a prompt", async ({ page
  await expect(panel.getByText("exponential backoff", { exact: false })).toBeVisible()
  await expect(panel.getByText("other session", { exact: false })).toHaveCount(0)

+  // Leaving a session abandons its in-flight question, so it reads as failed on return.
+  await editor.fill("/btw is this question left behind?")
+  await editor.press("Enter")
+  await expect(panel.getByRole("status")).toContainText("Working")
+  await page.locator(`[data-titlebar-tab-link][href="${sessionHref(other.id)}"]`).click()
+  await expectSessionTitle(page, other.title)
+  await page.locator(`[data-titlebar-tab-link][href="${sessionHref(main.id)}"]`).click()
+  await expectSessionTitle(page, main.title)
+  await expect(panel.getByText("Couldn’t answer that question", { exact: true })).toBeVisible()
+  await expect(panel.getByRole("button", { name: "Retry", exact: true })).toBeVisible()
+  abandoned.resolve()
+
  await page.reload()
  await expectSessionTitle(page, main.title)
  await expect(page.getByRole("tab", { name: "/btw" })).toHaveCount(0)
  await expect(panel).toHaveCount(0)
+  expect(ownerWarnings).toEqual([])
 })
@@ -183,6 +183,35 @@ test("keeps a narrow session composer contained when invoking a built-in", async
  await expect(editor).toHaveText("keep me")
 })

+test("lists slash commands in their built-in order", async ({ page }) => {
+  const { editor } = await openSession(page, {
+    name: "ComposerSlash",
+    provider: NO_PROVIDER,
+    commands: [
+      { name: "init", description: "Create AGENTS.md" },
+      { name: "review", description: "Review changes" },
+    ],
+    // A sent message enables /undo, /compact and /fork.
+    pageMessages: () => ({ items: [{ id: "msg_slash", type: "user", text: "Hello", time: { created: T0 } }] }),
+  })
+  await editor.fill("/")
+  await expect(page.locator('[data-component="composer-suggestions"] [data-suggestion-id] bdi')).toHaveText([
+    "/init",
+    "/review",
+    "/new",
+    "/undo",
+    "/compact",
+    "/fork",
+    "/export",
+    "/open",
+    "/terminal",
+    "/mcp",
+    "/model",
+    "/connect",
+    "/btw",
+  ])
+})
+
 const followUp = "Add follow-up, / for commands, @ for context…"
 for (const row of [
  { state: "an idle", copy: "Ask anything, / for commands, @ for context…" },
@@ -10,7 +10,7 @@ test("mobile files browse, comment, search, and close tabs", async ({ page }) =>
    fileList: (path) => (path ? [] : ["first.ts", "second.ts"].map((name) => fileNode(fixture.directory, name))),
    fileContent: (path) => `contents:${path}`,
    findFiles: ({ query }) =>
-      ["first.ts", "second.ts"].filter((path) => path.includes(query)).map((path) => fileNode(fixture.directory, path)),
+      ["first.ts", "second.ts"].flatMap((path) => (path.includes(query) ? [fileNode(fixture.directory, path)] : [])),
  })
  await page.goto(sessionHref(fixture.targetID))
  const navigation = page.getByRole("tablist", { name: "Session view", exact: true })
@@ -21,15 +21,19 @@ test("mobile files browse, comment, search, and close tabs", async ({ page }) =>
  await files.locator('[data-column-number="1"]').click()
  const editor = files.locator('[data-component="line-comment-v2"][data-variant="editor"]')
  await expect(editor.getByRole("textbox")).toBeVisible()
+
  const fullWidth = async (card: typeof editor) => {
    const panel = (await files.boundingBox())!
    const box = await card.boundingBox()
+
    return !!box && Math.abs(box.x - panel.x - 12) < 2 && Math.abs(box.width - panel.width + 24) < 2
  }
+
  for (const width of [390, 700]) {
    await page.setViewportSize({ width, height: 844 })
    await expect.poll(() => fullWidth(editor)).toBe(true)
  }
+
  await editor.getByRole("textbox").fill("Full-width file comment")
  await editor.getByRole("button", { name: "Comment", exact: true }).click()
  const comment = files.locator('[data-component="line-comment-v2"][data-variant="display"]')
@@ -37,6 +41,17 @@ test("mobile files browse, comment, search, and close tabs", async ({ page }) =>
  await expect.poll(() => fullWidth(comment)).toBe(true)

  await page.setViewportSize({ width: 390, height: 844 })
+  // Its composer chip reveals the comment without leaving the conversation.
+  const session = navigation.getByRole("tab", { name: "Session", exact: true })
+  await session.click()
+  await page
+    .locator('[data-component="composer-attachments"]')
+    .getByText("Full-width file comment", { exact: true })
+    .click()
+  await expect(session).toHaveAttribute("aria-selected", "true")
+  await expect(page.getByRole("textbox", { name: "Prompt", exact: true })).toBeVisible()
+  await navigation.getByRole("tab", { name: "Files", exact: true }).click()
+  await expect(files.getByText("contents:first.ts", { exact: true })).toBeVisible()
  const filter = files.getByRole("combobox", { name: "Filter files", exact: true })
  await expect(filter).toBeHidden()
  await files.getByRole("button", { name: "All files", exact: true }).click()
@@ -100,6 +115,7 @@ test("mobile changes summarize expanded diffs, stage comments, wrap by setting,
    ],
    fileContent: async (path) => {
      if (path === "modified.ts") await held.promise
+
      return `contents:${path}`
    },
  })
@@ -128,11 +144,13 @@ test("mobile changes summarize expanded diffs, stage comments, wrap by setting,
    await expect(summary.getByRole("button", { name: "Open file", exact: true })).toBeVisible()
    await expect(summary.locator('[data-slot="diff-changes-additions"]')).toHaveText(change.additions)
    await expect(summary.locator('[data-slot="diff-changes-deletions"]')).toHaveText(change.deletions)
+
    if (change.status) await expect(summary.getByText(change.status, { exact: true })).toBeVisible()
    await trigger.click()
    await expect(trigger).toHaveAttribute("aria-expanded", "false")
    await expect(summary).toHaveCount(0)
  }
+
  await expect(review.locator('[data-slot="session-review-view-button"]')).toHaveCount(0)
  const modified = review.locator('[data-file="modified.ts"]')
  await modified.getByRole("button", { name: "modified.ts", exact: true }).click()
@@ -143,9 +161,11 @@ test("mobile changes summarize expanded diffs, stage comments, wrap by setting,

  // A line comment is staged into the composer context without writing anything to the server.
  const writes: string[] = []
+
  const recordWrite = (request: Request) => {
    if (request.method() !== "GET") writes.push(`${request.method()} ${new URL(request.url()).pathname}`)
  }
+
  page.on("request", recordWrite)
  const note = "Use the existing value instead"
  const commented = review.locator('[data-file="src/review.ts"]')
@@ -166,8 +186,12 @@ test("mobile changes summarize expanded diffs, stage comments, wrap by setting,
  const settings = page.getByTestId("settings-screen")
  const wrap = settings.getByRole("switch", { name: "Wrap lines", exact: true })
  const wrapControl = settings.locator('[data-action="settings-mobile-diff-wrap"] [data-slot="switch-control"]')
+
  const storedWrap = () =>
-    page.evaluate(() => JSON.parse(localStorage.getItem("settings.v3") ?? "{}").general?.mobileDiffWrap)
+    page.evaluate(
+      () => JSON.parse(localStorage.getItem("opencode.global.dat:extension.review.mobileDiff") ?? "{}").wrap,
+    )
+
  await expect(wrap).toBeChecked()
  await wrapControl.click()
  await expect(wrap).not.toBeChecked()
@@ -203,6 +227,7 @@ test("mobile changes summarize expanded diffs, stage comments, wrap by setting,
    .poll(async () => {
      const button = (await openFile.boundingBox())!
      const summary = (await modified.locator('[data-slot="session-review-change-summary"]').boundingBox())!
+
      return button.x + button.width < summary.x + summary.width / 2
    })
    .toBe(true)
@@ -210,12 +235,14 @@ test("mobile changes summarize expanded diffs, stage comments, wrap by setting,
  // Opening a changed file selects its tab at once, before a slower file finishes loading; reopening switches back.
  await review.locator('[data-file="added.ts"]').getByRole("button", { name: "added.ts", exact: true }).click()
  const selected = files.getByRole("tablist", { name: "Open files", exact: true }).getByRole("tab", { selected: true })
+
  for (const file of ["added.ts", "modified.ts", "added.ts", "modified.ts"]) {
    await navigation.getByRole("tab", { name: "Changes", exact: true }).click()
    await review.locator(`[data-file="${file}"]`).getByRole("button", { name: "Open file", exact: true }).click()
    await expect(navigation.getByRole("tab", { name: "Files", exact: true })).toHaveAttribute("aria-selected", "true")
    await expect(selected).toHaveText([file])
    await expect(files).toHaveAttribute("data-browsing", "false")
+
    if (file === "modified.ts") held.resolve()
    await expect(files.getByText(`contents:${file}`, { exact: true })).toBeVisible()
  }
@@ -224,9 +251,11 @@ test("mobile changes summarize expanded diffs, stage comments, wrap by setting,
 test("summary drawer dismisses by button, backdrop, Escape, and drag", async ({ page }) => {
  await mockStressTimeline(page)
  await page.goto(sessionHref(fixture.targetID))
+
  const more = page
    .locator('[data-slot="session-mobile-view-navigation"]')
    .getByRole("button", { name: "More options", exact: true })
+
  const drawer = page.getByRole("dialog", { name: "Session details", exact: true })
  const overlay = page.locator('[data-slot="mobile-drawer-overlay"]')

@@ -240,9 +269,13 @@ test("summary drawer dismisses by button, backdrop, Escape, and drag", async ({
      .poll(() => drawer.evaluate((element) => new DOMMatrixReadOnly(getComputedStyle(element).transform).m42))
      .toBe(0)
    await expect(drawer).not.toHaveAttribute("data-transitioning")
+
    if (dismissal === "button") await drawer.getByRole("button", { name: "Close", exact: true }).click()
+
    if (dismissal === "backdrop") await overlay.click({ position: { x: 10, y: 10 } })
+
    if (dismissal === "escape") await page.keyboard.press("Escape")
+
    if (dismissal === "drag") {
      const bounds = (await drawer.locator('[data-slot="mobile-drawer-handle"]').boundingBox())!
      await page.mouse.move(bounds.x + bounds.width / 2, bounds.y + bounds.height / 2)
@@ -251,6 +284,7 @@ test("summary drawer dismisses by button, backdrop, Escape, and drag", async ({
      await page.mouse.move(bounds.x + bounds.width / 2, 843)
      await page.mouse.up()
    }
+
    await expect(drawer, `dismissal: ${dismissal}`).toBeHidden()
    await expect(overlay).toHaveCount(0)
    await expect(more).toBeFocused()
@@ -221,6 +221,54 @@ test("the summary's changes row switches the view and keeps the side tabs", asyn

  await page.setViewportSize({ width: 1280, height: 900 })
  await expect(readme).toHaveAttribute("aria-selected", "true")
+
+  // After a reload forgets the preview, a stored Open file tab is still the slot a narrow-screen file open replaces.
+  const launcher = panel.getByRole("tab", { name: "Open file", exact: true })
+  await panel.getByRole("button", { name: "Open file", exact: true }).click()
+  await expect(launcher).toHaveAttribute("aria-selected", "true")
+  await expect(readme).toHaveCount(0)
+  await page.reload()
+  await expect(launcher).toHaveAttribute("aria-selected", "true")
+  await page.setViewportSize({ width: 390, height: 844 })
+  await tabs.getByRole("tab", { name: "Files", exact: true }).click()
+  const files = page.locator('[data-slot="session-mobile-files"]')
+  await files.getByRole("button", { name: "README.md", exact: true }).click()
+  await expect(files.getByText("contents:README.md", { exact: true })).toBeVisible()
+  await page.setViewportSize({ width: 1280, height: 900 })
+  await expect(readme).toHaveAttribute("aria-selected", "true")
+  await expect(launcher).toHaveCount(0)
+})
+
+test("a narrow-screen palette pick keeps the view and dock, and the side region shows the file when wide", async ({
+  page,
+}) => {
+  await page.setViewportSize({ width: 390, height: 844 })
+  await mockStressTimeline(page, {
+    fileList: (path) => (path ? [] : [fileNode(fixture.directory, "README.md")]),
+    fileContent: (path) => ({ type: "text", content: `contents:${path}` }),
+    findFiles: ({ query }) => ("README.md".includes(query) ? [fileNode(fixture.directory, "README.md")] : []),
+    pty: {},
+  })
+  await openStress(page, { lastProject: { local: fixture.directory } })
+  await page.goto(sessionHref(fixture.targetID))
+
+  const tabs = page.getByRole("tablist", { name: "Session view", exact: true })
+  const terminal = page.locator("#terminal-panel")
+  await tabs.getByRole("tab", { name: "Terminal", exact: true }).click()
+  await expect(terminal.locator("textarea")).toBeEditable()
+  await page.keyboard.press("ControlOrMeta+p")
+  const dialog = page.getByRole("dialog")
+  await dialog.getByRole("textbox").fill("README")
+  await dialog.getByRole("option", { name: "/ README.md", exact: true }).click()
+  await expect(dialog).toHaveCount(0)
+  await expect(tabs.getByRole("tab", { selected: true })).toHaveText("Terminal")
+  await expect(terminal).toHaveAttribute("data-opened", "true")
+
+  await page.setViewportSize({ width: 1280, height: 900 })
+  await expect(terminal).toHaveAttribute("data-opened", "true")
+  const panel = page.locator("#review-panel")
+  await expect(panel.getByRole("tab", { name: "README.md", exact: true })).toHaveAttribute("aria-selected", "true")
+  await expect(panel.getByText("contents:README.md", { exact: true })).toBeVisible()
 })

 test.describe("touch", () => {
@@ -90,6 +90,7 @@ test("settings opened from a remote session sweep every server and keep the remo
  await expect(page).toHaveURL("/settings")
  await expect(page.locator('[data-titlebar-tab][data-active="true"]')).toHaveCount(0)
  await expect(page.getByRole("dialog")).toHaveCount(0)
+  await expect(settings.getByRole("tab", { name: "Models", exact: true })).toHaveCount(0)
  await view.listed(REMOTE_SERVER, directoryB)
  await expect.poll(() => view.replies).toEqual([reply(sessionA.id, "permission-pending-a")])

@@ -112,6 +113,7 @@ test("settings opened from a remote session sweep every server and keep the remo
  await expect(page.locator('[data-titlebar-tab][data-active="true"]')).toContainText(sessionB.title)
  await page.keyboard.press("Control+]")
  await expect(page).toHaveURL("/settings")
+  await expect(settings.getByRole("tab", { name: "Preferences", exact: true })).toHaveAttribute("aria-selected", "true")
  await page.keyboard.press("Escape")
  await expectPath(page, sessionHref(sessionB.id, REMOTE_SERVER))
  await expectSessionTitle(page, sessionB.title)
@@ -220,13 +220,16 @@ for (const scenario of scenarios) {
                const top = sessionTop + (group?.getBoundingClientRect().height ?? 0)
                const rect = element.getBoundingClientRect()
                const trigger = element.querySelector("button")!
+                // The header stuck directly below the session title sits where the title's fade starts.
+                const hits = (target: Element, box: DOMRect) =>
+                  [box.top + 1, box.top + box.height / 2].every((y) =>
+                    target.contains(document.elementFromPoint(box.left + box.width / 2, y)),
+                  )
                return {
                  gap: Math.abs(rect.top - top - (toolTitle?.getBoundingClientRect().height ?? 0)),
                  groupGap: group ? Math.abs(group.getBoundingClientRect().top - sessionTop) : 0,
                  titleGap: toolTitle ? Math.abs(toolTitle.getBoundingClientRect().top - top) : 0,
-                  clickable: trigger.contains(
-                    document.elementFromPoint(rect.left + rect.width / 2, rect.top + rect.height / 2),
-                  ),
+                  clickable: hits(trigger, rect) && (!group || hits(group, group.getBoundingClientRect())),
                }
              }),
            )
@@ -1,16 +1,43 @@
 import type { OpenCodeEvent, SessionMessageInfo } from "@opencode/client/promise"
 import { expect, test, type Locator, type Page } from "@playwright/test"
 import { base64Encode } from "@opencode/util/encode"
-import { workspaceKey } from "../utils/app"
+import { SERVER, project, provider, session, workspaceKey } from "../utils/app"
+import { mockOpenCodeServer } from "../utils/mock-server"
 import { fileDiff, fileNode, openSession } from "../utils/workspace"
 import { expectSessionTitle } from "../utils/waits"

 test.use({ viewport: { width: 1440, height: 900 } })

+for (const view of ["desktop", "mobile"] as const) {
+  test(`offers Git initialization for a project without VCS (${view})`, async ({ page }) => {
+    if (view === "mobile") await page.setViewportSize({ width: 390, height: 844 })
+    const requests: { directory: string; provider?: string }[] = []
+
+    const workspace = await openSession(page, {
+      name: "ReviewWithoutGit",
+      project: { vcs: undefined },
+      onVcsInit: (input) => requests.push(input),
+    })
+
+    if (view === "desktop") await page.getByRole("button", { name: "Toggle review" }).click()
+    else await page.getByRole("tablist", { name: "Session view" }).getByRole("tab", { name: "Changes" }).click()
+
+    const panel = view === "desktop" ? page.locator("#review-panel") : page.locator('[data-component="session-review"]')
+    await expect(panel.getByText("Track, review, and undo changes in this project")).toBeVisible()
+    await expect(panel.getByRole("button", { name: "Git changes" })).toHaveCount(0)
+    const init = panel.getByRole("button", { name: "Create Git repository" })
+    await init.click()
+    await expect.poll(() => requests).toEqual([{ directory: workspace.directory, provider: "git" }])
+    await expect(panel.getByRole("button", { name: "Git changes" })).toBeVisible()
+    await expect(init).toHaveCount(0)
+  })
+}
+
 test("open file tab browses, searches, and tracks missing files", async ({ page }) => {
  const searches: { query: string; dirs?: string; limit?: number }[] = []
  const directory = "C:/OpenCode/ReviewOpenFile"
  const files = Array.from({ length: 80 }, (_, index) => `file-${String(index).padStart(2, "0")}.ts`)
+
  const workspace = await openSession(page, {
    name: "ReviewOpenFile",
    vcsDiff: [fileDiff("src/changed.ts")],
@@ -25,6 +52,7 @@ test("open file tab browses, searches, and tracks missing files", async ({ page
    fileContent: (path) => ({ type: "text", content: `contents:${path}` }),
    findFiles: (input) => {
      searches.push(input)
+
      return input.query === "nested" ? [fileNode(directory, "src/nested.ts")] : []
    },
    seed: {
@@ -66,6 +94,8 @@ test("open file tab browses, searches, and tracks missing files", async ({ page
    route.fulfill({
      status: 404,
      headers: { "access-control-allow-origin": "*" },
+      // SAFETY: the server's wire body for a missing file, which the client decodes into its own error.
+      // oxlint-disable-next-line anti-slop-effect/no-manual-tagged-construction -- see SAFETY above
      json: { _tag: "FileNotFoundError", path: "README.md", message: "File not found: README.md" },
    }),
  )
@@ -118,9 +148,10 @@ test("open file tab browses, searches, and tracks missing files", async ({ page
    .toBeLessThanOrEqual(1)
  const scrolled = await viewport.evaluate((element) => element.scrollTop)
  expect(scrolled).toBeGreaterThan(0)
-  await root.evaluate((element) => ((element as HTMLElement & { e2eProbe?: string }).e2eProbe = "original"))
+  await root.evaluate((element) => void (element.dataset.e2eProbe = "original"))
+
  const expectSidebarKept = async () => {
-    expect(await root.evaluate((element) => (element as HTMLElement & { e2eProbe?: string }).e2eProbe)).toBe("original")
+    expect(await root.evaluate((element) => element.dataset.e2eProbe)).toBe("original")
    await expect.poll(() => viewport.evaluate((element) => element.scrollTop)).toBe(scrolled)
  }

@@ -245,7 +276,9 @@ test("file tree expands Windows paths and scrolls long names in both directions"
          { ...fileNode(directory, longPath), path: `frontend\\${longFilename}` },
        ]
      }
+
      if (path) return []
+
      return [
        { ...fileNode(directory, "frontend", "directory"), name: "", path: "frontend\\" },
        fileNode(directory, "README.md"),
@@ -347,6 +380,7 @@ test("a restored file tab keeps the file tree on Files Changed", async ({ page }

 test("rereads a file each time an artifact link opens it", async ({ page }) => {
  const file = { content: "first draft" }
+
  const messages = [
    { id: "msg_prompt", type: "user", text: "Write the shopping list", time: { created: 1 } },
    {
@@ -358,6 +392,7 @@ test("rereads a file each time an artifact link opens it", async ({ page }) => {
      time: { created: 2, completed: 3 },
    },
  ] satisfies SessionMessageInfo[]
+
  await openSession(page, {
    name: "ArtifactReopen",
    fileList: () => [],
@@ -381,6 +416,9 @@ test("rereads a file each time an artifact link opens it", async ({ page }) => {
  await expect(panel.getByText("first draft", { exact: true })).toHaveCount(0)
 })

+/** What the image case's frame probe records on the window. */
+type ImageProbe = { problems: string[]; frames: number; running: boolean }
+
 test("image files keep the review panel painted while loading", async ({ page }) => {
  await page.setViewportSize({ width: 960, height: 900 })
  const directory = "C:/OpenCode/ReviewImage"
@@ -394,12 +432,16 @@ test("image files keep the review panel painted while loading", async ({ page })
      if (path !== image) return undefined
      read.resolve()
      await release.promise
+
      return { type: "binary", content: "iVBORw0KGgo=", encoding: "base64", mimeType: "image/png" }
    },
    fileList: (path) => {
      if (!path) return [fileNode(directory, "assets", "directory"), fileNode(directory, "src", "directory")]
+
      if (path === "assets") return [fileNode(directory, image)]
+
      if (path === "src") return [fileNode(directory, "src/example.ts")]
+
      return []
    },
  })
@@ -408,27 +450,37 @@ test("image files keep the review panel painted while loading", async ({ page })

  // Records every painted frame from before the click until after the image read completes.
  await page.evaluate(() => {
-    const probe = { problems: [] as string[], frames: 0, running: true }
+    const probe: ImageProbe = { problems: [], frames: 0, running: true }
+
    const sample = () => {
      const panel = document.querySelector<HTMLElement>('#review-panel [data-component="session-review-v2"]')
      const rect = panel?.getBoundingClientRect()
+
      const hit =
        rect?.width && rect.height ? document.elementFromPoint(rect.x + rect.width / 2, rect.y + rect.height / 2) : null
+
      const frame = [
        !panel?.checkVisibility() && "hidden",
        !panel?.textContent?.trim() && "blank",
        !(hit && document.querySelector("#review-panel")?.contains(hit)) && "outside the review panel",
        hit && getComputedStyle(hit).backgroundColor === "rgb(0, 0, 0)" && "black",
-      ].filter((problem) => typeof problem === "string")
+      ].filter((problem) => problem !== false && problem !== null)
+
      probe.problems.push(...frame)
      probe.frames += 1
+
      if (probe.running) requestAnimationFrame(sample)
    }
-    ;(window as Window & { e2eImageProbe?: typeof probe }).e2eImageProbe = probe
+
+    // The evaluates below read it.
+    Object.assign(window, { e2eImageProbe: probe })
    requestAnimationFrame(sample)
  })
+
  const frames = () =>
-    page.evaluate(() => (window as Window & { e2eImageProbe?: { frames: number } }).e2eImageProbe!.frames)
+    // SAFETY: the evaluate above stored the probe on the window before any frame is counted.
+    page.evaluate(() => (window as Window & { e2eImageProbe?: ImageProbe }).e2eImageProbe!.frames)
+
  const response = page.waitForResponse((item) => item.url().includes(`/api/fs/read/${image}`))
  await page.getByRole("button", { name: /preview\.png/ }).click()
  await read.promise
@@ -441,8 +493,10 @@ test("image files keep the review panel painted while loading", async ({ page })
  await expect.poll(frames).toBeGreaterThan(loaded)
  expect(
    await page.evaluate(() => {
-      const probe = (window as Window & { e2eImageProbe?: { problems: string[]; running: boolean } }).e2eImageProbe!
+      // SAFETY: the evaluate above stored the probe on the window.
+      const probe = (window as Window & { e2eImageProbe?: ImageProbe }).e2eImageProbe!
      probe.running = false
+
      return probe.problems
    }),
  ).toEqual([])
@@ -454,6 +508,7 @@ test("restores review state and the side-panel tab per session", async ({ page }
    { id: "ses_review_state_b", title: "Beta review state" },
    { id: "ses_review_state_c", title: "Gamma review state" },
  ]
+
  const directory = "C:/OpenCode/ReviewState"
  await openSession(page, {
    name: "ReviewState",
@@ -469,10 +524,13 @@ test("restores review state and the side-panel tab per session", async ({ page }
  const panel = page.locator("#review-panel")
  const review = panel.locator("#session-side-panel-review-tab")
  const toggle = page.getByRole("button", { name: "Toggle review" })
+
  const selectedTab = (name: string) =>
    expect(panel.getByRole("tab", { name, exact: true })).toHaveAttribute("aria-selected", "true")
+
  const selectedFile = (file: string) =>
    expect(page.locator('[data-slot="session-review-v2-file-name"]')).toHaveText(file)
+
  const switchSession = async (title: string) => {
    await page.locator("[data-titlebar-tab-slot]", { hasText: title }).click()
    await expectSessionTitle(page, title)
@@ -579,6 +637,7 @@ test("keeps the review state a session stored before extensions", async ({ page
  })
  const mode = (name: string) => page.getByRole("button", { name, exact: true })
  const changes = page.getByRole("tablist", { name: "Session view", exact: true }).getByRole("tab", { name: "Changes" })
+
  const trigger = (file: string) =>
    page
      .locator(`[data-component="session-review"] [data-file="${file}"]`)
@@ -603,6 +662,98 @@ test("keeps the review state a session stored before extensions", async ({ page
  await expect(trigger("gamma.ts")).toBeVisible()
 })

+test("desktop review waits for the session's stored mode before it loads changes", async ({ page }) => {
+  const directory = "C:/OpenCode/ReviewDesktop"
+  const id = "ses_review_desktop"
+  const title = "Desktop review"
+  await mockOpenCodeServer(page, {
+    directory,
+    project: project({ id: "proj_review_desktop", directory }),
+    provider: provider(),
+    sessions: [session({ id, directory, title })],
+    pageMessages: () => ({ items: [] }),
+    vcs: { current: "feature", default: "dev" },
+    vcsDiff: ({ mode }) => (mode === "branch" ? [fileDiff("beta.ts")] : [fileDiff("gamma.ts")]),
+  })
+  const working: string[] = []
+  page.on("request", (request) => {
+    const url = new URL(request.url())
+
+    if (url.pathname.endsWith("/vcs/diff") && url.searchParams.get("mode") === "working") working.push(request.url())
+  })
+
+  const desktop = (hold?: string) =>
+    `/e2e/utils/settings-wsl.html?${new URLSearchParams({
+      server: SERVER,
+      mode: "stopped",
+      storage: "async",
+      path: `/server/${base64Encode("sidecar")}/session/${id}`,
+      ...(hold && { hold }),
+    })}`
+
+  const mode = (name: string) => page.getByRole("button", { name, exact: true })
+  const file = page.locator('[data-slot="session-review-v2-file-name"]')
+  const toggle = page.getByRole("button", { name: "Toggle review", exact: true })
+
+  await page.goto(desktop())
+  await expectSessionTitle(page, title)
+  await toggle.click()
+  await mode("Git changes").click()
+  await page.getByRole("option", { name: "Branch changes" }).click()
+  await expect(file).toHaveText("beta.ts")
+  await expect
+    .poll(() =>
+      page.evaluate(() =>
+        Object.entries(localStorage).some(
+          ([key, value]) => key.includes("extension.review.session") && value.includes('"branch"'),
+        ),
+      ),
+    )
+    .toBe(true)
+
+  // The reopened window's review mounts before its session store has loaded.
+  working.length = 0
+  await page.goto(desktop("extension.review.session"))
+  await expectSessionTitle(page, title)
+  await expect(toggle).toHaveAttribute("aria-expanded", "true")
+  await expect(page.locator("#review-panel").getByText("Loading changes…", { exact: true })).toBeVisible()
+  await expect(mode("Git changes")).toHaveCount(0)
+  await page.getByRole("button", { name: "Load held storage" }).click()
+  await expect(mode("Branch changes")).toBeVisible()
+  await expect(file).toHaveText("beta.ts")
+  expect(working).toEqual([])
+})
+
+test("a chosen mode the session stops offering shows as Git, and comes back when it is offered again", async ({
+  page,
+}) => {
+  // The mock server reads the branches on each request, so a reload sees the session's branch change.
+  const vcs = { current: "feature", default: "dev" }
+  await openSession(page, {
+    name: "ReviewModeBack",
+    vcs,
+    vcsDiff: ({ mode }) => (mode === "branch" ? [fileDiff("beta.ts")] : [fileDiff("gamma.ts")]),
+  })
+  const mode = (name: string) => page.getByRole("button", { name, exact: true })
+  const file = page.locator('[data-slot="session-review-v2-file-name"]')
+
+  await page.getByRole("button", { name: "Toggle review", exact: true }).click()
+  await mode("Git changes").click()
+  await page.getByRole("option", { name: "Branch changes" }).click()
+  await expect(file).toHaveText("beta.ts")
+
+  // Back on the default branch, Branch is not offered.
+  vcs.current = "dev"
+  await page.reload()
+  await expect(mode("Git changes")).toBeVisible()
+  await expect(file).toHaveText("gamma.ts")
+
+  vcs.current = "feature"
+  await page.reload()
+  await expect(mode("Branch changes")).toBeVisible()
+  await expect(file).toHaveText("beta.ts")
+})
+
 for (const direction of ["ltr", "rtl"] as const) {
  test(`review toggle stays at the header edge in ${direction}`, async ({ page }) => {
    await page.setViewportSize({ width: 1000, height: 900 })
@@ -625,6 +776,7 @@ for (const direction of ["ltr", "rtl"] as const) {
    await expect
      .poll(async () => {
        const box = (await panel.boundingBox())!
+
        return (
          closed.x >= box.x &&
          closed.x + closed.width <= box.x + box.width &&
@@ -636,6 +788,7 @@ for (const direction of ["ltr", "rtl"] as const) {
    await expect
      .poll(async () => {
        const box = await panel.locator('[data-slot="session-side-panel-actions"]').boundingBox()
+
        return box ? box.y + box.height / 2 : undefined
      })
      .toBe(closed.y + closed.height / 2)
@@ -648,7 +801,9 @@ for (const direction of ["ltr", "rtl"] as const) {
    // Pause in the same task as each click so even the first painted state can be inspected.
    for (const opened of [true, false]) {
      await toggle.evaluate((element) => {
-        ;(element as HTMLButtonElement).click()
+        // SAFETY: `toggle` is the review toggle, a button.
+        const button = element as HTMLButtonElement
+        button.click()
        document
          .getAnimations()
          .filter((animation) => animation.timeline instanceof DocumentTimeline)
@@ -656,6 +811,7 @@ for (const direction of ["ltr", "rtl"] as const) {
      })
      await expect(toggle).toHaveAttribute("aria-expanded", String(opened))
      await expect(panel).toHaveAttribute("aria-hidden", String(!opened))
+
      for (const progress of [0.25, 0.8]) await expectHeaderClearOfToggle(page, toggle, progress)
      await page.evaluate(() =>
        document
@@ -664,6 +820,7 @@ for (const direction of ["ltr", "rtl"] as const) {
          .forEach((animation) => animation.finish()),
      )
    }
+
    await expect(panel).toBeHidden()
  })
 }
@@ -681,6 +838,7 @@ async function statusInset(status: Locator, side: "left" | "right") {
  return status.evaluate((element, side) => {
    const viewport = element.closest<HTMLElement>(".scroll-view__viewport")!.getBoundingClientRect()
    const box = element.getBoundingClientRect()
+
    return side === "right" ? viewport.right - box.right : box.left - viewport.left
  }, side)
 }
@@ -698,18 +856,22 @@ function filesystemEvent(directory: string, file: string, event: "add" | "change
 async function expectHeaderClearOfToggle(page: Page, toggle: Locator, progress: number) {
  const geometry = await page.locator('[data-slot="session-chat-panel"]').evaluate((chat, progress) => {
    const row = chat.parentElement!
+
    const animations = row
      .getAnimations({ subtree: true })
      .filter((animation) => animation.timeline instanceof DocumentTimeline)
+
    const width = animations.find(
      (animation) => animation instanceof CSSTransition && animation.transitionProperty === "width",
    )!
+
    animations.forEach((animation) => {
      animation.pause()
      animation.currentTime = Number(width.effect!.getTiming().duration) * progress
    })
    const chatBounds = chat.getBoundingClientRect()
    const panelBounds = document.querySelector("#review-panel")!.getBoundingClientRect()
+
    return {
      row: row.getBoundingClientRect().width,
      panelWidth: panelBounds.width,
@@ -721,8 +883,11 @@ async function expectHeaderClearOfToggle(page: Page, toggle: Locator, progress:
      panels: chatBounds.width + panelBounds.width + parseFloat(getComputedStyle(row).columnGap),
    }
  }, progress)
+
  expect(geometry.gap).toBeCloseTo(8, 1)
+
  if (geometry.panelWidth > 0) expect(Math.abs(geometry.row - geometry.panels)).toBeLessThanOrEqual(1)
+
  if (progress === 0.25) {
    expect(geometry.contentOpacity).toBeGreaterThan(0)
    expect(geometry.contentOpacity).toBeLessThan(1)
@@ -10,7 +10,8 @@ for (const custom of [false, true]) {
  test(`summary toggle ${custom ? "custom" : "default"} shortcut follows the active session`, async ({ page }) => {
    await mockStressTimeline(page)
    await installStressSessionTabs(page)
-    // The legacy command ID; the keybind migration renames it to `summary.toggle`.
+
+    // The legacy command ID; the keybind migration renames it to `details.toggle`.
    if (custom) await seed(page, { settings: { keybinds: { "session.summary.toggle": "f8" } } })
    await page.goto(sessionHref(fixture.sourceID))
    const trigger = page.getByRole("button", { name: "Session details", exact: true })
@@ -25,7 +26,8 @@ for (const custom of [false, true]) {
    await expect(tooltip.locator('[data-slot="keybind-v2-label"]')).toHaveText(
      custom ? ["F8"] : mac ? ["⇧", "⌘", "Y"] : ["Ctrl", "Shift", "Y"],
    )
-    for (const id of [fixture.targetID, fixture.sourceID]) {
+
+    for (const id of [fixture.sourceID, fixture.targetID, fixture.sourceID]) {
      await page.locator(`[data-titlebar-tab-link][href="${sessionHref(id)}"]`).click()
      const messages = id === fixture.sourceID ? fixture.expected.sourceMessageIDs : fixture.expected.targetMessageIDs
      await expect(
@@ -41,6 +43,18 @@ for (const custom of [false, true]) {
      await expect(summary).toBeHidden()
      await expect(trigger).toBeFocused()
    }
+
+    if (!custom) return
+
+    // The override moved, so storage keeps only its new id and Shortcuts lists no row titled with the old one.
+    const keybinds = () => page.evaluate(() => JSON.parse(localStorage.getItem("settings.v3") ?? "null")?.keybinds)
+    await expect.poll(keybinds).toEqual({ "details.toggle": "f8" })
+    await page.goto("/settings")
+    const settings = page.getByTestId("settings-screen")
+    await settings.getByRole("tab", { name: "Shortcuts", exact: true }).click()
+    await expect(settings.getByText("Toggle summary", { exact: true })).toBeVisible()
+    await expect(settings.getByText("session.summary.toggle", { exact: true })).toHaveCount(0)
+    expect(await keybinds()).toEqual({ "details.toggle": "f8" })
  })
 }

@@ -74,7 +88,7 @@ test("summary disclosures import legacy settings and persist in extension storag
  await expect(trigger).toBeFocused()
  await expect
    .poll(() =>
-      page.evaluate(() => JSON.parse(localStorage.getItem("opencode.global.dat:extension.summary.prefs") ?? "null")),
+      page.evaluate(() => JSON.parse(localStorage.getItem("opencode.global.dat:extension.details.prefs") ?? "null")),
    )
    .toEqual({ projectExpanded: true, serverExpanded: false })

@@ -120,6 +134,49 @@ test("a session in a worktree subfolder names its worktree and lists cached work
  list.release()
 })

+test("the details follow the routed session when it moves to another worktree", async ({ page }) => {
+  const root = "C:/OpenCode/SmokeWorktrees"
+
+  const sessions = fixture.sessions.map((item) =>
+    item.id === fixture.targetID ? { ...item, directory: `${root}/feature` } : { ...item },
+  )
+
+  const mock = await mockStressTimeline(page, {
+    sessions,
+    worktrees: [
+      { directory: fixture.directory },
+      { directory: `${root}/feature`, strategy: "git" },
+      { directory: `${root}/other`, strategy: "git" },
+    ],
+  })
+
+  await page.goto(sessionHref(fixture.targetID))
+  const trigger = page.getByRole("button", { name: "Session details", exact: true })
+  const summary = page.getByRole("dialog", { name: "Session details", exact: true })
+  const location = (name: string) => summary.getByRole("button", { name, exact: true })
+  await trigger.click()
+  await expect(location("feature")).toBeVisible()
+  await page.keyboard.press("Escape")
+  await expect(summary).toBeHidden()
+
+  // The server moves the session; the screen stays mounted while its extensions read the new worktree.
+  const moved = sessions.find((item) => item.id === fixture.targetID)
+
+  if (moved) moved.directory = `${root}/other`
+  await mock.push([
+    {
+      id: "evt_details_session_moved",
+      type: "session.moved",
+      created: 2,
+      durable: { aggregateID: fixture.targetID, seq: 1, version: 1 },
+      data: { sessionID: fixture.targetID, location: { directory: `${root}/other` }, projectID: fixture.project.id },
+    },
+  ])
+  await trigger.click()
+  await expect(location("other")).toBeVisible()
+  await expect(location("feature")).toHaveCount(0)
+})
+
 for (const direction of ["ltr", "rtl"] as const) {
  test(`summary overlays the view and submenus follow ${direction}`, async ({ page }) => {
    await page.setViewportSize({ width: 1440, height: 900 })
@@ -131,9 +188,11 @@ for (const direction of ["ltr", "rtl"] as const) {
    await expect(page.locator("html")).toHaveAttribute("dir", direction)
    await expect(page.locator("html")).toHaveAttribute("lang", "en")
    const warnings = ownerWarnings(page)
+
    const row = page.locator(
      `[data-timeline-row="UserMessage"][data-message-id="${fixture.expected.targetMessageIDs.at(-1)}"]`,
    )
+
    const composer = page.locator('[data-component="session-composer-dock"] > div')
    const summary = page.getByRole("dialog", { name: "Session details", exact: true })
    await expect(row).toBeInViewport()
@@ -145,6 +204,7 @@ for (const direction of ["ltr", "rtl"] as const) {
      .poll(async () => {
        const message = (await row.boundingBox())!
        const input = (await composer.boundingBox())!
+
        return Math.max(Math.abs(message.x - before.row.x), Math.abs(input.x - before.composer.x))
      })
      .toBeLessThan(1)
@@ -152,6 +212,7 @@ for (const direction of ["ltr", "rtl"] as const) {
      .poll(async () => {
        const message = (await row.boundingBox())!
        const details = (await summary.boundingBox())!
+
        return Math.min(message.x + message.width, details.x + details.width) - Math.max(message.x, details.x)
      })
      .toBeGreaterThan(0)
@@ -160,10 +221,12 @@ for (const direction of ["ltr", "rtl"] as const) {
    await expect.poll(() => text.evaluate((element) => element.scrollWidth > element.clientWidth)).toBe(true)
    // Labels, including the truncated branch, stop 12px before the trailing indicator column.
    const workspace = summary.getByRole("button", { name: "Local repository", exact: true })
+
    for (const [label, indicator] of [
      [text, workspace.locator(".session-summary-menu-indicator")],
      ...["Local repository", "MCP", "Plugins", "Skills", "LSP"].map((name) => {
        const item = summary.getByRole("button", { name, exact: true })
+
        return [item.locator(".session-summary-label"), item.locator(".session-summary-menu-indicator")]
      }),
    ]) {
@@ -171,10 +234,12 @@ for (const direction of ["ltr", "rtl"] as const) {
        .poll(async () => {
          const start = (await label!.boundingBox())!
          const end = (await indicator!.boundingBox())!
+
          return direction === "ltr" ? end.x - start.x - start.width : start.x - end.x - end.width
        })
        .toBeGreaterThanOrEqual(12)
    }
+
    await expectAlignedWithHeader(page, direction)

    const mcp = summary.getByRole("button", { name: "MCP", exact: true })
@@ -188,6 +253,7 @@ for (const direction of ["ltr", "rtl"] as const) {
      .poll(async () => {
        const item = (await mcp.boundingBox())!
        const menu = (await submenu.boundingBox())!
+
        return direction === "ltr" ? menu.x + menu.width <= item.x : menu.x >= item.x + item.width
      })
      .toBe(true)
@@ -209,6 +275,7 @@ for (const direction of ["ltr", "rtl"] as const) {
      await expect(page.getByRole("dialog", { name, exact: true }).getByText(empty, { exact: true })).toBeVisible()
      await expect(submenu).toBeHidden()
    }
+
    await summary.getByRole("button", { name: "Extensions", exact: true }).click()
    await expect(page.getByRole("dialog", { name: "LSP", exact: true })).toBeHidden()
    await page.keyboard.press("Escape")
@@ -224,6 +291,7 @@ for (const direction of ["ltr", "rtl"] as const) {
 test("summary catalogs load, refresh while cached, and tell errors from empty", async ({ page }) => {
  const state = { fail: true, extra: false, empty: false }
  const pluginDirectories: string[] = []
+
  const lsp = [
    {
      type: "document",
@@ -236,6 +304,7 @@ test("summary catalogs load, refresh while cached, and tell errors from empty",
    },
    { type: "document", info: { lsp: { rust: { disabled: true } } } },
  ]
+
  await mockStressTimeline(page, {
    mcp: () => (state.empty ? [] : [{ name: "summary-mcp", status: { status: "connected" } }]),
    plugins: () =>
@@ -280,7 +349,9 @@ test("summary catalogs load, refresh while cached, and tell errors from empty",
    (route) => {
      if (route.request().method() === "OPTIONS") return route.fallback()
      pluginDirectories.push(new URL(route.request().url()).searchParams.get("location[directory]") ?? "")
+
      if (state.fail) return route.fulfill({ status: 500, headers: cors, json: { message: "Unavailable" } })
+
      return route.fallback()
    },
  )
@@ -337,6 +408,7 @@ test("summary catalogs load, refresh while cached, and tell errors from empty",

  state.empty = true
  lsp.length = 0
+
  for (const service of [
    { name: "MCP", path: "/api/mcp", empty: "No MCP servers configured" },
    { name: "Plugins", path: "/api/plugin", empty: "No plugins configured" },
@@ -347,6 +419,7 @@ test("summary catalogs load, refresh while cached, and tell errors from empty",
    await expect(menu(service.name).getByText(service.empty, { exact: true })).toBeVisible()
    await expectRefreshKeeps(page, service.name, service.path, service.empty)
  }
+
  expect(warnings).toEqual([])
 })

@@ -363,6 +436,7 @@ test("every MCP row hit area toggles exactly once and keeps the submenu open", a
  const writes: { path: string; directory: string | null }[] = []
  page.on("request", (request) => {
    const url = new URL(request.url())
+
    if (request.method() !== "POST" || !url.pathname.startsWith("/api/experimental/mcp/")) return
    writes.push({ path: url.pathname, directory: url.searchParams.get("location[directory]") })
  })
@@ -371,9 +445,11 @@ test("every MCP row hit area toggles exactly once and keeps the submenu open", a
  await page.getByRole("button", { name: "MCP", exact: true }).click()
  const submenu = page.getByRole("dialog", { name: "MCP", exact: true })
  const toggle = submenu.getByRole("switch", { name: "figma", exact: true })
+
  const row = submenu
    .locator('[data-component="switch"]')
    .filter({ has: page.getByRole("switch", { name: "figma", exact: true }) })
+
  await expect(toggle).toBeChecked()
  await expect(submenu.getByRole("switch", { name: "playwright", exact: true })).toBeChecked()
  await expect(submenu.getByRole("switch", { name: "playwright", exact: true })).toHaveAccessibleDescription("Failed")
@@ -386,14 +462,20 @@ test("every MCP row hit area toggles exactly once and keeps the submenu open", a
  for (const [index, target] of ["label", "dot", "padding", "control", "keyboard"].entries()) {
    const enabled = index % 2 !== 0
    await expect(toggle).toBeEnabled()
+
    if (target === "label") await row.getByText("figma", { exact: true }).click()
+
    if (target === "dot") await row.locator(".session-service-dot").click()
+
    if (target === "padding") await row.click({ position: { x: 3, y: 3 } })
+
    if (target === "control") await row.locator('[data-slot="switch-control"]').click()
+
    if (target === "keyboard") await toggle.press("Space")
    await expect(toggle).toBeChecked({ checked: enabled })
    await expect(toggle).toBeEnabled()
    await expect(submenu).toBeVisible()
+
    if (target === "keyboard") await expect(toggle).toBeFocused()
    expect(writes).toHaveLength(index + 1)
    expect(writes[index]).toEqual({
@@ -411,6 +493,7 @@ test("MCP authentication starts before a slow resource catalog finishes", async
    mcp: [{ name: "linear", integrationID: "linear-oauth", status: { status: "disabled" } }],
    onMcpAction: () => {
      state.connected = true
+
      return { status: "needs_auth" }
    },
    integrations: [{ id: "linear-oauth", name: "Linear", methods: [{ id: "oauth", type: "oauth" }], connections: [] }],
@@ -420,16 +503,19 @@ test("MCP authentication starts before a slow resource catalog finishes", async
    if (request.method() === "POST" && new URL(request.url()).pathname.startsWith("/api/integration/"))
      attempts.push(request.url())
  })
+
  // Only the resource catalog refresh after connecting is slow.
  const resources = await holdRoute(page, (url) => state.connected && url.pathname === "/api/mcp/resource", {
    method: "GET",
  })
+
  await page.goto(sessionHref(fixture.targetID))
  await page.getByRole("button", { name: "Session details", exact: true }).click()
  await page.getByRole("button", { name: "MCP", exact: true }).click()
  const submenu = page.getByRole("dialog", { name: "MCP", exact: true })
  const toggle = submenu.getByRole("switch", { name: "linear", exact: true })
  await expect(toggle).toBeEnabled()
+
  try {
    const popup = page.waitForEvent("popup")
    await submenu.getByText("linear", { exact: true }).click()
@@ -440,6 +526,7 @@ test("MCP authentication starts before a slow resource catalog finishes", async
  } finally {
    resources.release()
  }
+
  await expect(toggle).toBeEnabled()
  expect(attempts).toHaveLength(1)
  expect(new URL(attempts[0]).searchParams.get("location[directory]")).toBe(fixture.directory)
@@ -475,6 +562,7 @@ test.describe("remote configuration", () => {
  test("remote servers copy each service's configuration path", async ({ page }) => {
    const remote = "http://summary-remote.test:4096"
    const home = "/home/remote/.config/opencode"
+
    const entries = [
      { type: "document", path: `${home}/mcp.jsonc`, info: { mcp: { servers: {} } } },
      { type: "document", path: `${home}/plugins.json`, info: { plugins: [] } },
@@ -483,6 +571,7 @@ test.describe("remote configuration", () => {
      { type: "document", path: `${fixture.directory}/opencode.json`, info: {} },
      { type: "document", path: `${fixture.directory}/.opencode/agents/review.md`, info: {} },
    ]
+
    await mockOpenCodeServer(page, {
      server: remote,
      sessions: fixture.sessions,
@@ -512,15 +601,18 @@ test.describe("remote configuration", () => {
      await expect(tooltip).toHaveCount(0)
      await copy.hover()
      await expect(tooltip).toHaveText("Copy")
+
      if (index === 0) {
        await expect
          .poll(async () => {
            const icon = (await copy.locator("svg").boundingBox())!
            const tip = (await tooltip.boundingBox())!
+
            return Math.abs(tip.x + tip.width / 2 - icon.x - icon.width / 2)
          })
          .toBeLessThanOrEqual(1)
      }
+
      await copy.click()
      await expect.poll(() => page.evaluate(() => navigator.clipboard.readText())).toBe(service.path)
      await expect(tooltip).toHaveText("Copied")
@@ -533,9 +625,11 @@ test.describe("remote configuration", () => {
    await page.evaluate(() => navigator.clipboard.writeText("original clipboard"))
    await trigger.click()
    await summary.getByRole("button", { name: "Skills", exact: true }).click()
+
    const copy = page
      .getByRole("dialog", { name: "Skills", exact: true })
      .getByRole("button", { name: "Copy configuration file path", exact: true })
+
    await copy.click()
    await expect(page.getByText("No configuration file found", { exact: true })).toBeVisible()
    await expect(copy).toBeEnabled()
@@ -562,6 +656,7 @@ test("long MCP lists stay in the viewport in a real RTL locale", async ({ page }
  await expect
    .poll(async () => {
      const bounds = (await menu.boundingBox())!
+
      return bounds.x >= 15 && bounds.y >= 15 && bounds.x + bounds.width <= 785 && bounds.y + bounds.height <= 585
    })
    .toBe(true)
@@ -579,6 +674,7 @@ function ownerWarnings(page: Page) {
  page.on("console", (event) => {
    if (event.text().includes("computations created outside")) warnings.push(event.text())
  })
+
  return warnings
 }

@@ -589,6 +685,7 @@ async function expectAlignedWithHeader(page: Page, direction: "ltr" | "rtl") {
    .poll(async () => {
      const header = (await page.locator("[data-session-title]").boundingBox())!
      const panel = (await summary.boundingBox())!
+
      return direction === "ltr"
        ? Math.abs(header.x + header.width - panel.x - panel.width - 12)
        : Math.abs(panel.x - header.x - 12)
@@ -30,6 +30,7 @@ for (const mode of ["failed", "stopped", "ready"] as const) {
      await page.getByRole("menuitem", { name: "Retry start", exact: true }).click()
      await expect(page.getByLabel("WSL actions")).toHaveText("start:wsl:Ubuntu")
    }
+
    await expect(settings.getByRole("tab", { name: "Projects", exact: true })).toBeEnabled()
    await connection.getByRole("button", { name: "Update OpenCode", exact: true }).click()
    await expect(page.getByLabel("WSL actions")).toContainText("update:Ubuntu")
@@ -43,10 +44,54 @@ for (const mode of ["failed", "stopped", "ready"] as const) {
  })
 }

+test("adding a WSL server while the WSL extension is down shows that WSL is unavailable", async ({ page }) => {
+  await mockOpenCodeServer(page, {
+    directory: "/repo",
+    project: project({ id: "proj_wsl_unavailable", directory: "/repo", name: "WSL project" }),
+    provider: NO_PROVIDER,
+    sessions: [],
+    pageMessages: () => ({ items: [] }),
+  })
+  await page.goto(`/e2e/utils/settings-wsl.html?${new URLSearchParams({ server: SERVER, mode: "ready" })}`)
+  const settings = page.getByTestId("settings-screen")
+  await expect(settings.getByRole("tab", { name: "Ubuntu", exact: true })).toHaveCount(1)
+  await page.getByRole("checkbox", { name: "WSL extension" }).uncheck()
+
+  await settings.getByRole("button", { name: "Add server", exact: true }).press("Enter")
+  await page.getByRole("menuitem", { name: "Add WSL server", exact: true }).click()
+  const dialog = page.getByRole("dialog")
+  await expect(dialog.getByRole("heading", { name: "WSL unavailable", exact: true })).toBeVisible()
+  await expect(dialog.getByText("OpenCode could not verify WSL on this machine.", { exact: true })).toBeVisible()
+  await expect(dialog.getByText("WSL is unavailable", { exact: true })).toBeVisible()
+})
+
+test("adding an SSH server while the SSH extension is down fails instead of connecting forever", async ({ page }) => {
+  await mockOpenCodeServer(page, {
+    directory: "/repo",
+    project: project({ id: "proj_ssh_unavailable", directory: "/repo", name: "SSH project" }),
+    provider: NO_PROVIDER,
+    sessions: [],
+    pageMessages: () => ({ items: [] }),
+  })
+  await page.goto(`/e2e/utils/settings-wsl.html?${new URLSearchParams({ server: SERVER, mode: "ready" })}`)
+  const settings = page.getByTestId("settings-screen")
+  await expect(settings.getByRole("tab", { name: "Ubuntu", exact: true })).toHaveCount(1)
+  await page.getByRole("checkbox", { name: "SSH extension" }).uncheck()
+
+  await settings.getByRole("button", { name: "Add server", exact: true }).press("Enter")
+  await page.getByRole("menuitem", { name: "Add SSH server", exact: true }).click()
+  const dialog = page.getByRole("dialog")
+  await dialog.getByRole("textbox", { name: "Host or SSH command" }).fill("ssh devbox")
+  await dialog.getByRole("button", { name: "Add server", exact: true }).click()
+  await expect(dialog.getByRole("alert")).toHaveText("Request failed")
+  await expect(dialog.getByRole("button", { name: "Add server", exact: true })).toBeEnabled()
+})
+
 test("an open session's terminal follows its WSL server to the endpoint it restarts on", async ({ page }) => {
  const restarted = "http://127.0.0.1:4098"
  const directory = "/home/ubuntu/project"
  const wsl = session({ id: "ses_wsl", directory, title: "WSL session" })
+
  const config = {
    directory,
    project: project({ id: "proj_wsl", directory }),
@@ -54,11 +99,13 @@ test("an open session's terminal follows its WSL server to the endpoint it resta
    sessions: [wsl],
    pageMessages: () => ({ items: [] }),
  }
+
  const servers = await mockServers(page, {
    [SERVER]: { ...config, sessions: [] },
    [REMOTE_SERVER]: { ...config, pty: { prefix: "pty_before" } },
    [restarted]: { ...config, pty: { prefix: "pty_after" } },
  })
+
  const path = `/server/${base64Encode("wsl:Ubuntu")}/session/${wsl.id}`
  await page.goto(
    `/e2e/utils/settings-wsl.html?${new URLSearchParams({ server: SERVER, mode: "ready", wsl: REMOTE_SERVER, restart: restarted, path })}`,
@@ -86,6 +133,7 @@ test("an open session's terminal follows its WSL server to the endpoint it resta
 test("WSL session and draft tabs outlive the extension going away until the server is removed", async ({ page }) => {
  const directory = "/home/ubuntu/project"
  const wsl = session({ id: "ses_wsl_tabs", directory, title: "WSL tabs session" })
+
  const config = {
    directory,
    project: project({ id: "proj_wsl_tabs", directory }),
@@ -93,6 +141,7 @@ test("WSL session and draft tabs outlive the extension going away until the serv
    sessions: [wsl],
    pageMessages: () => ({ items: [] }),
  }
+
  await mockServers(page, { [SERVER]: { ...config, sessions: [] }, [REMOTE_SERVER]: config })
  const href = `/server/${base64Encode("wsl:Ubuntu")}/session/${wsl.id}`
  await page.goto(
@@ -105,11 +154,13 @@ test("WSL session and draft tabs outlive the extension going away until the serv
  await editor.fill("keep this draft")
  await expect(editor).toHaveText("keep this draft")
  const tabs = page.locator("a[data-titlebar-tab-link]")
+
  const expectTabs = async () => {
    await expect(tabs).toHaveCount(2)
    await expect(tabs.nth(0)).toHaveAttribute("href", href)
    await expect(tabs.nth(1)).toHaveAttribute("href", /^\/new-session\?draftId=/)
  }
+
  await expectTabs()

  const extension = page.getByRole("checkbox", { name: "WSL extension" })
@@ -131,17 +182,66 @@ test("WSL session and draft tabs outlive the extension going away until the serv
  await expect(tabs).toHaveCount(0)
 })

+test("an SSH host that asks for sign-in again opens the dialog once per selected tab", async ({ page }) => {
+  const directory = "/home/box/project"
+  const box = session({ id: "ses_ssh_offer", directory, title: "SSH offer session" })
+
+  const config = {
+    directory,
+    project: project({ id: "proj_ssh_offer", directory }),
+    provider: provider(),
+    sessions: [box],
+    pageMessages: () => ({ items: [] }),
+  }
+
+  await mockServers(page, { [SERVER]: { ...config, sessions: [] }, [REMOTE_SERVER]: config })
+  const path = `/server/${base64Encode("ssh:box")}/session/${box.id}`
+  await page.goto(
+    `/e2e/utils/settings-wsl.html?${new URLSearchParams({ server: SERVER, mode: "ready", ssh: REMOTE_SERVER, path })}`,
+  )
+  await expectSessionTitle(page, box.title)
+  const connects = page.getByLabel("SSH connects")
+  const signIn = page.getByRole("button", { name: "Require SSH sign-in" })
+  const authenticate = page.getByRole("button", { name: "Authenticate", exact: true })
+
+  // The first request on the tab opens sign-in by itself; the fixture's host connects without a prompt.
+  await signIn.click()
+  await expect(connects).toHaveText("1")
+  await expectSessionTitle(page, box.title)
+  // A later request on the same tab only offers the button.
+  await signIn.click()
+  await expect(authenticate).toBeVisible()
+  await expect(connects).toHaveText("1")
+  await authenticate.click()
+  await expect(connects).toHaveText("2")
+  await expectSessionTitle(page, box.title)
+
+  // Another tab selected and this one selected again is a new selection, even while the host was ready.
+  const tabs = page.locator("a[data-titlebar-tab-link]")
+  await page.getByRole("button", { name: "New session", exact: true }).click()
+  await expect(tabs).toHaveCount(2)
+  await expect(tabs.nth(1)).toHaveAttribute("href", /^\/new-session\?draftId=/)
+  await expect(page.getByRole("heading", { name: box.title })).toHaveCount(0)
+  await tabs.nth(0).click()
+  await expectSessionTitle(page, box.title)
+  await signIn.click()
+  await expect(connects).toHaveText("3")
+})
+
 test("an open session moves to the controller a new SSH sign-in creates", async ({ page }) => {
  const directory = "/home/box/project"
  const model = { id: "box-model", name: "Box Model" }
+
  const box = session({
    id: "ses_ssh",
    directory,
    title: "SSH session",
    model: { id: model.id, providerID: "opencode" },
  })
+
  const remote = { password: "ssh-1" }
  const prompts: unknown[] = []
+
  const config = {
    directory,
    project: project({ id: "proj_ssh", directory }),
@@ -149,6 +249,7 @@ test("an open session moves to the controller a new SSH sign-in creates", async
    sessions: [box],
    pageMessages: () => ({ items: [] }),
  }
+
  const servers = await mockServers(page, {
    [SERVER]: { ...config, sessions: [] },
    [REMOTE_SERVER]: {
@@ -157,6 +258,7 @@ test("an open session moves to the controller a new SSH sign-in creates", async
      onPrompt: (input) => prompts.push(input.body.text),
    },
  })
+
  const path = `/server/${base64Encode("ssh:box")}/session/${box.id}`
  await page.goto(
    `/e2e/utils/settings-wsl.html?${new URLSearchParams({ server: SERVER, mode: "ready", ssh: REMOTE_SERVER, path })}`,
@@ -1,7 +1,7 @@
 import { expect, test, type Page } from "@playwright/test"
 import type { ConfigEntry, OpenCodeEvent, WorktreeDirectory } from "@opencode/client/promise"
 import { NO_PROVIDER, REMOTE_SERVER, SERVER, holdRoute, project, session } from "../utils/app"
-import { mockRemoteServer, openSettings, type WorkspaceInput } from "../utils/workspace"
+import { mockRemoteServer, mockWorkspace, openSettings, type WorkspaceInput } from "../utils/workspace"

 const directory = "C:/Projects/settings-demo"
 const projectID = "proj_settings_demo"
@@ -65,6 +65,20 @@ test("settings has its own route and returns through app history", async ({ page
  await expect(settings).toBeHidden()
 })

+test("Ctrl+, opens settings as soon as the app loads", async ({ page }) => {
+  await mockWorkspace(page, {
+    name: "Settings demo",
+    directory,
+    provider: NO_PROVIDER,
+    sessions: [],
+    seed: { tabs: [] },
+  })
+  await page.goto("/")
+  await page.keyboard.press("Control+,")
+  await expect(page.getByTestId("settings-screen")).toBeVisible()
+  await expect(page).toHaveURL("/settings")
+})
+
 test("a settings page survives refresh", async ({ page }) => {
  const { settings } = await open(page)
  const appearance = settings.getByRole("tab", { name: "Appearance", exact: true })
@@ -200,9 +200,11 @@ test("terminal stacks under review by default and spans the bottom when configur
  await expect
    .poll(() =>
      page.evaluate(() => {
-        const review = document.querySelector("#review-panel")!.getBoundingClientRect()
-        const terminal = document.querySelector("#terminal-panel")!.getBoundingClientRect()
-        const sidebar = document.querySelector('#review-panel [data-slot="session-review-v2-sidebar"]')!
+        const review = document.querySelector("#review-panel")?.getBoundingClientRect()
+        const terminal = document.querySelector("#terminal-panel")?.getBoundingClientRect()
+        const sidebar = document.querySelector('#review-panel [data-slot="session-review-v2-sidebar"]')
+        // The side region appears before its lazy review content after reload.
+        if (!review || !terminal || !sidebar) return false
        const gap = terminal.top - review.bottom
        return (
          terminal.left <= 9 &&
@@ -13,11 +13,13 @@ import {
 } from "../utils/app"
 import { mockServers } from "../utils/mock-server"
 import { fixture, mockStressTimeline } from "../utils/session-fixture"
-import { mockWorkspace } from "../utils/workspace"
+import { fileNode, mockWorkspace, openSession } from "../utils/workspace"
 import { expectSessionTitle } from "../utils/waits"

 const a = { id: "ses_tab_a", title: "Tab A session" }
+
 const b = { id: "ses_tab_b", title: "Tab B session" }
+
 const c = { id: "ses_tab_c", title: "Tab C session" }

 test.use({ serviceWorkers: "block" })
@@ -28,6 +30,7 @@ test("tab strip keeps draft tabs as wide as session tabs and navigates on mouse
    sessions: [a, b],
    seed: { tabs: [a.id, { draft: "draft_tab_width", directory: "C:/OpenCode/Tabs" }, b.id] },
  })
+
  await page.goto(sessionHref(a.id))

  const tabs = page.locator("[data-titlebar-tab-slot]")
@@ -36,6 +39,7 @@ test("tab strip keeps draft tabs as wide as session tabs and navigates on mouse
    .poll(() =>
      tabs.evaluateAll((tabs) => {
        const widths = tabs.map((tab) => tab.getBoundingClientRect().width)
+
        return Math.max(...widths) - Math.min(...widths)
      }),
    )
@@ -43,6 +47,7 @@ test("tab strip keeps draft tabs as wide as session tabs and navigates on mouse

  const link = page.locator(`a[data-titlebar-tab-link][href="${sessionHref(b.id, workspace.server)}"]`)
  const box = await link.boundingBox()
+
  if (!box) throw new Error("tab link has no bounding box")
  await page.mouse.move(box.x + box.width / 2, box.y + box.height / 2)
  await page.mouse.down()
@@ -118,6 +123,7 @@ for (const row of [

    await expectPath(page, sessionHref(b.id))
    await expect(page.getByRole("dialog", { name: "Tabs", exact: true })).toBeHidden()
+
    if (row.tabLayout !== "vertical") return
    await page.setViewportSize({ width: 1280, height: 720 })
    await expect(
@@ -156,11 +162,13 @@ test("vertical tabs resize, scroll, show shortcut hints, and navigate", async ({
  await expect(page.locator('[data-slot="titlebar-tabs"]')).toHaveCount(0)

  const handle = sidebar.locator('[data-component="resize-handle"]')
+
  for (const [offset, width] of [
    [-80, "180px"],
    [-200, "140px"],
  ] as const) {
    const box = await handle.boundingBox()
+
    if (!box) throw new Error("vertical tab resize handle has no bounding box")
    await page.mouse.move(box.x + box.width / 2, box.y + box.height / 2)
    await page.mouse.down()
@@ -168,6 +176,7 @@ test("vertical tabs resize, scroll, show shortcut hints, and navigate", async ({
    await page.mouse.up()
    await expect(sidebar).toHaveCSS("width", width)
  }
+
  for (const name of ["Home", "New session"]) {
    const label = sidebar.getByRole("button", { name, exact: true }).getByText(name, { exact: true })
    await expect(label).toBeVisible()
@@ -242,8 +251,11 @@ test("inactive tabs load attention, but read transcript and inbox only on select
  })
  page.on("request", (request) => {
    const path = new URL(request.url()).pathname
+
    if (!path.startsWith("/api/")) return
+
    if (request.method() === "GET") reads.push(path)
+
    if (request.method() === "DELETE" || /\/(interrupt|prompt)$/.test(path)) mutations.push(path)
  })
  const state = { text: "Original fixture answer" }
@@ -267,6 +279,7 @@ test("inactive tabs load attention, but read transcript and inbox only on select
    lastProject: { local: fixture.directory },
    tabs: [fixture.sourceID, fixture.targetID, fixture.childID],
  })
+
  const attention = Promise.all(
    [fixture.targetID, fixture.childID].flatMap((id) =>
      ["permission", "form"].map((kind) =>
@@ -274,6 +287,7 @@ test("inactive tabs load attention, but read transcript and inbox only on select
      ),
    ),
  )
+
  await page.goto(sessionHref(fixture.sourceID))
  await expectSessionTitle(page, fixture.expected.sourceTitle)
  await expect(page.locator(`[data-timeline-part-id="msg_${fixture.sourceID}_assistant:text:0"]`)).toContainText(
@@ -292,10 +306,12 @@ test("inactive tabs load attention, but read transcript and inbox only on select
  await expect(page.locator(`[data-timeline-part-id="msg_${fixture.targetID}_assistant:text:0"]`)).toContainText(
    state.text,
  )
+
  for (const id of [fixture.sourceID, fixture.targetID]) {
    expect(reads.filter((path) => path === `/api/session/${id}/message`)).toHaveLength(1)
    expect(reads.filter((path) => path === `/api/session/${id}/inbox`)).toHaveLength(1)
  }
+
  expect(
    reads.filter(
      (path) => path === `/api/session/${fixture.childID}/message` || path === `/api/session/${fixture.childID}/inbox`,
@@ -307,12 +323,14 @@ test("inactive tabs load attention, but read transcript and inbox only on select

 test("five loaded workspace tabs stay rendered and reactive through repeated switches", async ({ page }) => {
  await page.setViewportSize({ width: 1440, height: 900 })
+
  const sessions = Array.from({ length: 5 }, (_, index) => ({
    ...fixture.sessions[0]!,
    id: `ses_workspace_cycle_${index}`,
    directory: `${fixture.directory}/worktree-${index}`,
    title: `Workspace session ${index}`,
  }))
+
  const mock = await mockStressTimeline(page, {
    sessions,
    pageMessages: (id) => ({
@@ -329,6 +347,7 @@ test("five loaded workspace tabs stay rendered and reactive through repeated swi
      ] satisfies SessionMessageInfo[],
    }),
  })
+
  // Each worktree session resolves to its own location in the shared project (the mock echoes the requested one).
  await seed(page, {
    projects: { local: [{ worktree: fixture.directory, expanded: true }] },
@@ -342,6 +361,7 @@ test("five loaded workspace tabs stay rendered and reactive through repeated swi
    await expect(page.locator(`[data-timeline-part-id="msg_assistant_${item.id}:text:0"]`)).toBeVisible()
    await expect(page.locator("[data-timeline-virtual-content]")).toHaveCSS("visibility", "visible")
  }
+
  const active = sessions[0]!
  await mock.push([
    {
@@ -361,6 +381,56 @@ test("five loaded workspace tabs stay rendered and reactive through repeated swi
  await expect(page.getByText("Still receiving updates", { exact: true })).toBeVisible()
 })

+test("each session tab shows its own file tab after a switch to a session in another folder", async ({ page }) => {
+  await page.setViewportSize({ width: 1440, height: 900 })
+  const directory = "C:/OpenCode/FolderSwitch"
+  const alpha = { id: "ses_folderswitch_alpha", title: "Folder switch alpha" }
+  const beta = { id: "ses_folderswitch_beta", title: "Folder switch beta" }
+  const other = { id: "ses_folderswitch_other", title: "Folder switch other", directory: "C:/OpenCode/FolderOther" }
+  await openSession(page, {
+    name: "FolderSwitch",
+    sessions: [alpha, beta, other],
+    fileList: (path) => (path ? [] : ["greet.ts", "guide.md", "notes.txt"].map((file) => fileNode(directory, file))),
+    fileContent: (path) => ({ type: "text", content: `contents:${path}` }),
+    seed: { panes: Object.fromEntries([alpha, beta, other].map((item) => [item.id, { review: true }])) },
+  })
+  const panel = page.locator("#review-panel")
+
+  const shows = async (file: string) => {
+    await expect(panel.getByRole("tab", { name: file, exact: true })).toHaveAttribute("aria-selected", "true")
+    await expect(panel.getByText(`contents:${file}`, { exact: true })).toBeVisible()
+  }
+
+  const visit = async (target: { id: string; title: string }) => {
+    await page.locator(`[data-titlebar-tab-link][href="${sessionHref(target.id)}"]`).click()
+    await expectSessionTitle(page, target.title)
+  }
+
+  const open = async (file: string) => {
+    await panel.getByRole("button", { name: "Open file" }).click()
+    await panel.getByRole("button", { name: file, exact: true }).click()
+    await shows(file)
+  }
+
+  await open("greet.ts")
+  await visit(other)
+  await open("notes.txt")
+  await visit(beta)
+  await open("guide.md")
+
+  // The session screen stays mounted while the route moves between folders, and each tab reads its own folder.
+  for (const [target, file] of [
+    [alpha, "greet.ts"],
+    [other, "notes.txt"],
+    [beta, "guide.md"],
+    [other, "notes.txt"],
+    [alpha, "greet.ts"],
+  ] as const) {
+    await visit(target)
+    await shows(file)
+  }
+})
+
 // Windows has no native menu bar: the titlebar menu owns Paste, which only the desktop edit action can perform.
 test("the Windows titlebar menu pastes through the desktop edit action", async ({ page }) => {
  await mockWorkspace(page, { name: "WindowsMenu", sessions: [] })
@@ -384,6 +454,7 @@ async function twoServers(
 ) {
  const config = (sessions: ReturnType<typeof session>[], id: string) => {
    const directory = String(sessions[0]!.directory)
+
    return {
      directory,
      project: project({ id, directory }),
@@ -393,6 +464,7 @@ async function twoServers(
      strictDirectory: true,
    }
  }
+
  await mockServers(page, {
    [SERVER]: config(input.a, "proj_server_a"),
    [REMOTE_SERVER]: {
@@ -543,6 +543,26 @@ test.describe("Working", () => {
    await expect(working).toHaveCount(0)
  })

+  test("keeps Working instead of Used 1 Thought while reasoning is the only activity", async ({ page }) => {
+    const timeline = await setupTimeline(page, {
+      messages: [
+        userMessage(),
+        assistantMessage([reasoningPart("prt_only_thought", "Still considering the answer.")], { completed: false }),
+      ],
+      settings: { timelineDetail: detailed },
+    })
+    const working = page.locator('[data-component="session-working"]')
+    const group = page.locator('[data-component="collapsed-tool-group"]')
+    await expect(working).toBeVisible()
+    await expect(group).toHaveCount(0)
+    await expect(page.getByRole("button", { name: "Used 1 Thought" })).toHaveCount(0)
+
+    await timeline.send(partUpdated(toolPart("prt_after_thought", "read", "running", { filePath: "package.json" })))
+    await expect(group).toBeVisible()
+    await expect(group).toHaveAttribute("data-timeline-part-ids", `${assistantID}:reasoning:0,prt_after_thought`)
+    await expect(working).toBeVisible()
+  })
+
  for (const name of ["shell", "patch", "subagent"] as const) {
    test(`hides Working during ${name} input and execution, then restores it on completion`, async ({ page }) => {
      const timeline = await setupTimeline(page, {
@@ -0,0 +1,211 @@
+import { expect, test, type Page } from "@playwright/test"
+import pkg from "../../package.json" with { type: "json" }
+import type { SeedInput } from "../utils/app"
+import { openHeldStart } from "../utils/direction"
+import { expectAppVisible } from "../utils/waits"
+import { mockWorkspace } from "../utils/workspace"
+
+// The web app's version, which What's New compares with the version last seen.
+const current = pkg.version
+
+const SEEN = "opencode.global.dat:extension.updater.seen"
+
+const RELEASE_NOTES = "opencode.global.dat:extension.updater.releaseNotes"
+
+const cors = { "access-control-allow-origin": "*" }
+
+const splitPanes = {
+  title: "Split panes",
+  description: "Work side by side.",
+  media: { type: "image", src: "/split.png" },
+}
+
+// Newest first. Since 1.9.1 the app shows five desktop highlights: the CLI group, the repeat and the sixth stay out.
+const changelog = {
+  releases: [
+    {
+      tag: `v${current}`,
+      highlights: [
+        {
+          source: "Desktop",
+          items: [
+            splitPanes,
+            {
+              title: "Voice input",
+              shortDescription: "Talk to the agent.",
+              media: { type: "VIDEO", url: "/voice.mp4" },
+            },
+          ],
+        },
+        { source: "cli", items: [{ title: "Terminal only", description: "Not in the desktop app." }] },
+      ],
+    },
+    {
+      tag: "1.9.2",
+      highlights: [
+        { source: "desktop", title: "Faster startup", description: "Opens in half the time." },
+        {
+          source: "desktop",
+          items: [
+            splitPanes,
+            { title: "Themes", description: "Pick a theme." },
+            { title: "Session tabs", description: "Keep sessions open." },
+            { title: "Sixth", description: "Past the limit." },
+          ],
+        },
+      ],
+    },
+    { tag: "1.9.1", highlights: [{ source: "desktop", title: "Seen before", description: "Shown at 1.9.1." }] },
+  ],
+}
+
+// The list form, whose one release in range has no desktop highlights.
+const cliOnly = [{ tag: current, highlights: [{ source: "cli", title: "Terminal only", description: "Not here." }] }]
+
+// A user who last saw 1.9.1, stored where the app kept it before the updater extension owned What's New.
+const upgraded = { storage: { "highlights.v1": { version: "1.9.1" } } }
+
+test("What's New shows the highlights since the version seen, pages to Get started, and is seen once shown", async ({
+  page,
+}) => {
+  const requests = await serveChangelog(page)
+  await start(page, upgraded)
+  const dialog = page.getByRole("dialog")
+  const title = dialog.getByRole("heading", { level: 1 })
+  const next = dialog.getByRole("button", { name: "Next", exact: true })
+  await expect(title).toHaveText("Split panes")
+  await expect(dialog.getByText("Work side by side.", { exact: true })).toBeVisible()
+  await expect(dialog.getByRole("img", { name: "Split panes", exact: true })).toHaveAttribute("src", "/split.png")
+  // Seen as soon as it shows, so however it closes, the next start shows nothing.
+  await expect.poll(() => stored(page, SEEN)).toEqual({ version: current })
+
+  await next.click()
+  await expect(title).toHaveText("Voice input")
+  await expect(dialog.getByText("Talk to the agent.", { exact: true })).toBeVisible()
+  await expect(dialog.locator("video")).toHaveAttribute("src", "/voice.mp4")
+  await page.keyboard.press("ArrowLeft")
+  await expect(title).toHaveText("Split panes")
+  await page.keyboard.press("ArrowRight")
+  await expect(title).toHaveText("Voice input")
+
+  await next.click()
+  await expect(title).toHaveText("Faster startup")
+  await expect(dialog.locator("img, video")).toHaveCount(0)
+  await next.click()
+  await expect(title).toHaveText("Themes")
+  await next.click()
+  await expect(title).toHaveText("Session tabs")
+  await expect(next).toHaveCount(0)
+  await dialog.getByRole("button", { name: "Get started", exact: true }).click()
+  await expect(dialog).toBeHidden()
+  expect(requests).toHaveLength(1)
+})
+
+test("Don't show these in the future turns release notes off and closes What's New", async ({ page }) => {
+  await serveChangelog(page)
+  await start(page, upgraded)
+  const dialog = page.getByRole("dialog")
+  await expect(dialog.getByRole("heading", { level: 1 })).toHaveText("Split panes")
+  await dialog.getByRole("button", { name: "Don't show these in the future", exact: true }).click()
+  await expect(dialog).toBeHidden()
+  await expect.poll(() => stored(page, RELEASE_NOTES)).toEqual({ enabled: false })
+})
+
+test("What's New opened after the attachment mounts waits for the routes, then keeps focus over restored Settings", async ({ page }) => {
+  const held = Promise.withResolvers<void>()
+  await serveChangelog(page, changelog, held.promise)
+  await mockWorkspace(page, { name: "Whats New", sessions: [], seed: upgraded })
+  const app = await openHeldStart(page, "/settings")
+  await app.start()
+  held.resolve()
+  // What's New marks the release seen as it opens: after attachment, while an extension still holds the routes.
+  await expect.poll(() => stored(page, SEEN)).toEqual({ version: "test" })
+
+  const dialog = page.getByRole("dialog")
+  const focused = () => dialog.evaluate((element) => element.contains(document.activeElement))
+  await expect(dialog).toHaveCount(0)
+  await expect(page.getByTestId("settings-screen")).toHaveCount(0)
+  await app.finish()
+  await expect(page.getByTestId("settings-screen")).toBeAttached()
+  await expect(dialog.getByRole("heading", { level: 1 })).toHaveText("Split panes")
+  await expect.poll(focused).toBe(true)
+
+  for (const key of ["Tab", "Tab", "Tab", "Tab", "Shift+Tab"]) {
+    await page.keyboard.press(key)
+    await expect.poll(focused).toBe(true)
+  }
+})
+
+test("a failed changelog request leaves What's New for the next start", async ({ page }) => {
+  const failed = Promise.withResolvers<void>()
+  const requests: string[] = []
+
+  await page.route("https://opencode.ai/changelog.json", async (route) => {
+    requests.push(route.request().url())
+
+    if (requests.length > 1) return route.fulfill({ headers: cors, json: changelog })
+
+    await route.fulfill({ status: 503, headers: cors })
+    failed.resolve()
+  })
+
+  await start(page, upgraded)
+  await failed.promise
+  expect(await stored(page, SEEN)).toEqual({ version: "1.9.1" })
+  await page.reload()
+  await expect(page.getByRole("dialog").getByRole("heading", { level: 1 })).toHaveText("Split panes")
+})
+
+// Each start ends with the current version seen and no dialog; only a release in range is worth a changelog request.
+for (const row of [
+  { name: "the first run only remembers the version", seed: {}, requests: 0 },
+  {
+    name: "a version seen before, stored as highlights.v1, shows nothing",
+    seed: { storage: { "highlights.v1": { version: current } } },
+    requests: 0,
+  },
+  {
+    name: "release notes turned off before, in settings.v3, only remember the version",
+    seed: { ...upgraded, settings: { general: { releaseNotes: false } } },
+    requests: 0,
+  },
+  {
+    name: "a changelog without desktop highlights since the version seen only remembers the version",
+    seed: upgraded,
+    changelog: cliOnly,
+    requests: 1,
+  },
+]) {
+  test(`What's New: ${row.name}`, async ({ page }) => {
+    const requests = await serveChangelog(page, row.changelog)
+    await start(page, row.seed)
+    await expect.poll(() => stored(page, SEEN)).toEqual({ version: current })
+    expect(requests).toHaveLength(row.requests)
+    await expect(page.getByRole("dialog")).toHaveCount(0)
+  })
+}
+
+/** Serves this changelog and records each request for it. */
+async function serveChangelog(page: Page, body: typeof changelog | typeof cliOnly = changelog, held?: Promise<void>) {
+  const requests: string[] = []
+
+  await page.route("https://opencode.ai/changelog.json", async (route) => {
+    requests.push(route.request().url())
+    await held
+
+    return route.fulfill({ headers: cors, json: body })
+  })
+
+  return requests
+}
+
+/** Opens Home over one empty project, with this storage, and waits until the window renders. */
+async function start(page: Page, seed: SeedInput) {
+  await mockWorkspace(page, { name: "Whats New", sessions: [], seed })
+  await page.goto("/")
+  await expectAppVisible(page.getByRole("button", { name: "Settings", exact: true }))
+}
+
+function stored(page: Page, key: string) {
+  return page.evaluate((name) => localStorage.getItem(name), key).then((raw) => JSON.parse(raw ?? "null"))
+}
@@ -1,28 +1,95 @@
 import { MemoryRouter, createMemoryHistory } from "@solidjs/router"
+import { createSignal, Show } from "solid-js"
 import { render } from "solid-js/web"
-import { AppBaseProviders, AppInterface } from "../../src/app"
+import { AppBaseProviders, AppInterface, preloadRoute } from "../../src/app"
 import { useLanguage, type Direction } from "../../src/runtime/i18n/language"
 import { PlatformProvider } from "../../src/runtime/platform/platform"
 import { createWebPlatform } from "../../src/runtime/platform/web"
 import { ServerConnection } from "../../src/runtime/server/registry"
+import { Command } from "@opencode/gui-extensions/sdk"
+import { useExtensionHost } from "../../src/runtime/extension/host"
+import { useCommand } from "../../src/shell/commands/command"

-export function mount(input: { server: string; route: string; direction: Direction }) {
+/**
+ * Mounts the app at a route. With `held`, the window's providers and extensions start at once and the app interface
+ * mounts only when "Start app" is pressed, over its preloaded route, as the desktop shell mounts it once its server is up.
+ * One extension's load also waits for "Finish startup", so the attachment can mount before the routes render.
+ */
+export function mount(input: { server: string; route: string; direction: Direction; held?: boolean }) {
  const root = document.getElementById("root")
+
  if (!root) throw new Error("Missing fixture root")
  const history = createMemoryHistory()
  history.set({ value: input.route, replace: true, scroll: false })
  const server: ServerConnection.Http = { type: "http", http: { url: input.server } }
+  const [started, setStarted] = createSignal(!input.held)
+  const [finished, setFinished] = createSignal(false)
+  const held = Promise.withResolvers<void>()
+
+  function StartupGate() {
+    const host = useExtensionHost()
+    const command = useCommand()
+
+    // ExtensionCommands publishes before ready, proving the attachment mounted even while the routes wait.
+    const registered = () =>
+      host
+        .items(Command)
+        .some((item) => command.options.some((option) => option.id === `${item.extension}.${item.value.id}`))
+
+    return (
+      <button
+        disabled={!registered()}
+        onClick={() => {
+          held.resolve()
+          setFinished(true)
+        }}
+      >
+        Finish startup
+      </button>
+    )
+  }

  function DirectedApp() {
    const language = useLanguage()
    language.setDirection(input.direction)
+
    return (
      <AppInterface
        servers={[server]}
        defaultServer={ServerConnection.key(server)}
        canonicalLocalServer={ServerConnection.key(server)}
        router={(props) => <MemoryRouter {...props} history={history} />}
-      />
+      >
+        <Show when={input.held && !finished()}>
+          <StartupGate />
+        </Show>
+      </AppInterface>
+    )
+  }
+
+  function Startup() {
+    const host = useExtensionHost()
+    const definition = host.definitions().find((item) => item.renderer)
+    const load = definition?.renderer
+
+    // Hold a real extension through the public reload API before the startup gate first settles.
+    if (input.held && definition && load)
+      host.reload(definition.id, {
+        ...definition,
+        renderer: async () => {
+          await held.promise
+
+          return load()
+        },
+      })
+
+    return (
+      <Show
+        when={started()}
+        fallback={<button onClick={() => void preloadRoute(input.route).then(() => setStarted(true))}>Start app</button>}
+      >
+        <DirectedApp />
+      </Show>
    )
  }

@@ -30,7 +97,7 @@ export function mount(input: { server: string; route: string; direction: Directi
    () => (
      <PlatformProvider value={createWebPlatform("test").platform}>
        <AppBaseProviders locale="en">
-          <DirectedApp />
+          <Startup />
        </AppBaseProviders>
      </PlatformProvider>
    ),
@@ -14,7 +14,12 @@
    <script type="module">
      import { mount } from "./app-direction.fixture.tsx"
      const query = new URLSearchParams(location.search)
-      mount({ server: query.get("server"), route: query.get("route"), direction: query.get("direction") })
+      mount({
+        server: query.get("server"),
+        route: query.get("route"),
+        direction: query.get("direction"),
+        held: query.has("held"),
+      })
    </script>
  </body>
 </html>
@@ -1,6 +1,28 @@
-import type { Page } from "@playwright/test"
+import { expect, type Page } from "@playwright/test"
 import { SERVER } from "./app"

 export async function openWithDirection(page: Page, route: string, direction: "ltr" | "rtl") {
  await page.goto(`/e2e/utils/app-direction.html?${new URLSearchParams({ server: SERVER, route, direction })}`)
 }
+
+/**
+ * Opens the app at a route as the desktop shell starts it: the window's extensions run at once, and the app interface
+ * mounts over the preloaded route only when `start` runs, as it does once the desktop's server is up. One extension
+ * stays loading until `finish` runs; commands are published meanwhile, but the routes wait.
+ */
+export async function openHeldStart(page: Page, route: string) {
+  await page.goto(
+    `/e2e/utils/app-direction.html?${new URLSearchParams({ server: SERVER, route, direction: "ltr", held: "" })}`,
+  )
+  const start = page.getByRole("button", { name: "Start app", exact: true, includeHidden: true })
+  await expect(start).toBeVisible()
+
+  return {
+    // A modal open meanwhile hides the page outside it, so the button is found and clicked past the modal.
+    start: async () => {
+      await start.dispatchEvent("click")
+      await expect(page.getByRole("button", { name: "Finish startup", exact: true, includeHidden: true })).toBeEnabled()
+    },
+    finish: () => page.getByRole("button", { name: "Finish startup", exact: true, includeHidden: true }).dispatchEvent("click"),
+  }
+}
@@ -169,6 +169,7 @@ const Group = HttpApiGroup.make("mock")
  )
  .add(HttpApiEndpoint.get("formRequests", "/api/form", { success: Json }))
  .add(HttpApiEndpoint.get("vcs", "/api/vcs", { success: Json }))
+  .add(HttpApiEndpoint.post("vcsInit", "/api/vcs/init", { success: NoContent, error: Unsupported }))
  .add(HttpApiEndpoint.get("vcsStatus", "/api/vcs/status", { success: Json }))
  .add(HttpApiEndpoint.get("vcsBranches", "/api/vcs/branch", { success: Json }))
  .add(HttpApiEndpoint.get("vcsDiff", "/api/vcs/diff", { query: Query, success: Json }))
@@ -43,6 +43,8 @@ export interface MockServerConfig {
    cursor?: string
  }
  vcs?: { current: string; default: string }
+  // Initializes the mock project's VCS; without a handler this mutation answers 501.
+  onVcsInit?: (input: { directory: string; provider?: string }) => void
  vcsDiff?: unknown[] | ((input: { mode?: string }) => unknown[])
  // Benchmark latency only. Tests hold message pages with `beforeMessagesResponse`.
  messageDelay?: number
@@ -817,6 +819,24 @@ function mockHandlers(
            location: location(config),
            data: { branch: config.vcs ?? { current: "main", default: "main" } },
          }),
+        vcsInit: (ctx) => {
+          if (!config.onVcsInit) return unsupported("initialize VCS", "onVcsInit")
+          return Effect.sync(() => {
+            const url = new URL(ctx.request.url, "http://localhost")
+            const provider = url.searchParams.get("provider") ?? undefined
+            config.onVcsInit?.({ directory: requestDirectory(config, ctx.request), provider })
+            const project = config.project as { id: string; vcs?: string }
+            project.vcs = provider ?? "git"
+            state.emit([
+              {
+                id: "evt_vcs_initialized",
+                type: "worktree.updated",
+                created: Date.now(),
+                data: { projectID: project.id },
+              },
+            ])
+          }).pipe(Effect.andThen(noContent))
+        },
        vcsStatus: () => Effect.succeed({ location: location(config), data: [] }),
        vcsBranches: () => Effect.succeed({ location: location(config), data: ["main"] }),
        vcsDiff: (ctx) =>
Author	SHA1	Message	Date
Kit Langton	3913203f0f	feat(server): stream fs.read responses with HTTP Range support	2026-10-03 22:17:16 -07:00
Kit Langton	2884b49f8f	refactor(tui): remove permanently disabled unshare command (#53003 )	2026-10-03 21:34:00 -07:00
Kit Langton	b79da2697a	refactor(tui): drop unused ComposerTab.onClose and composer re-export (#53002 )	2026-10-03 21:33:55 -07:00
Kit Langton	552d2b9c8a	refactor(tui): drop never-passed component props (#53001 )	2026-10-03 21:33:51 -07:00
Kit Langton	0d98734fb2	refactor(tui): share mini requestOptions helper (#53000 )	2026-10-03 21:33:47 -07:00
Kit Langton	5ac5027cce	refactor(tui): remove unused mini thinking override (#52999 )	2026-10-03 21:33:42 -07:00
Kit Langton	4cb7ac9dab	refactor(tui): drop constant mini frontend exit code (#52998 )	2026-10-03 21:33:37 -07:00
Kit Langton	bc499e4562	refactor(tui): remove unused monoTruncateMiddle (#52997 )	2026-10-03 21:33:33 -07:00
Kit Langton	fa373ddb51	refactor(tui): share clamp between tab pulse and fade-in text (#52996 )	2026-10-03 21:33:28 -07:00
Kit Langton	2a02be02a7	refactor(tui): remove unused TabPulse outerFlashTail prop (#52995 )	2026-10-03 21:33:23 -07:00
Kit Langton	fc224dc8f0	refactor(tui): remove unused DialogSelect details and category view options (#52994 )	2026-10-03 21:33:18 -07:00
Kit Langton	eec8cf912e	refactor(tui): remove unused Prompt hint, right, and showPlaceholder props (#52993 )	2026-10-03 21:33:13 -07:00
Kit Langton	86f9edc107	refactor(tui): remove unread terminal environment fields (#52991 )	2026-10-03 21:33:08 -07:00
Kit Langton	5d6804eaac	refactor(tui): remove unused v1 config aliases and keybind values (#52990 )	2026-10-03 21:33:03 -07:00
Kit Langton	697ca1c9d3	refactor(tui): drop unused theme re-exports (#52986 )	2026-10-03 21:32:58 -07:00
Kit Langton	1287996a91	refactor(tui): drop stale terminal-win32 export (#52985 )	2026-10-03 21:32:54 -07:00
Kit Langton	a30f24355e	refactor(tui): share file change status label (#53004 )	2026-10-03 23:50:25 -04:00
Jérôme Benoit	96ecd60bdb	fix(nix): provide desktop signing tools on darwin (#53007 )	2026-10-03 22:33:12 -05:00
Aiden Cline	15c4e5d537	feat(ai): add Google Interactions protocol (#52981 )	2026-10-03 22:22:58 -05:00
Aiden Cline	5617044dc9	refactor(ai): avoid redundant request body validation (#52909 )	2026-10-03 22:22:15 -05:00
Luke Parker	0048c97c27	feat(gui-extensions): add typed composition and lifetime primitives (#52868 )	2026-10-04 13:16:37 +10:00
opencode-agent[bot]andHona	f72a103a4b	fix(windows): hide background subprocess windows (#52871 ) Co-authored-by: Hona <10430890+Hona@users.noreply.github.com>	2026-10-04 11:20:47 +10:00
opencode-agent[bot]	f74512bfe0	chore: update nix node_modules hashes	2026-10-03 23:05:19 +00:00
opencode-agent[bot]andneriousy	63b7de9434	fix(cli): restore Linux x64 musl PTY lock entry (#53035 ) Co-authored-by: neriousy <34747899+neriousy@users.noreply.github.com>	2026-10-04 00:55:38 +02:00
Filip	e8c75c2de0	fix(cli): run the curl installer with Git Bash on Windows (#53029 )	2026-10-04 00:29:09 +02:00
opencode-agent[bot]	d1f8f5b35e	chore: update nix node_modules hashes	2026-10-03 18:57:44 +00:00
Kit Langton	334f7a3510	fix(core): keep the first PTY output after spawn (#52960 )	2026-10-03 11:51:01 -07:00
opencode-agent[bot]	f02e184ba4	chore: update nix node_modules hashes	2026-10-03 14:32:42 +00:00
James Long	5ad0786536	fix(core): never let persistent PTY handoff break a server restart (#52573 )	2026-10-03 10:23:31 -04:00
opencode-agent[bot]	d8a3962923	chore(core): refresh bundled models.dev snapshot	2026-10-03 13:46:03 +00:00
Simon Klee	40679546d4	fix(tui): keep transcript rows stable when history is prepended (#52824 ) Session rows have no id, so reconcile matched them by position. Each page of older history shifted every row into a different store object and remounted the visible transcript. Newly mounted markdown is blank until highlighting finishes, so the transcript blinked once per page. This was most visible with Low verbosity, where opening a session loads several pages to complete the oldest group.	2026-10-03 06:09:37 +00:00
Daniel Chen	12810e84d3	docs(www): add Fledge Alpha Free to Console models (#52896 )	2026-10-02 21:59:24 -07:00
Aiden Cline	3e1aa1e58c	fix(server): return 404 when a location folder is missing (#52668 )	2026-10-02 23:43:56 -05:00
Aiden Cline	7ced9326e6	fix(ai): preserve Mistral and Cohere system parts (#52890 )	2026-10-02 23:36:36 -05:00
Aiden Cline	d1ff6f90cf	fix(ai): preserve Gemini system text parts (#52888 )	2026-10-02 23:04:49 -05:00
James Long	d9d094a543	fix(tui): keep question form highlights on the raised surface (#52872 )	2026-10-02 20:34:12 -04:00
Kit Langton	d113a40f55	fix(core): rename legacy provider in top-level model (#51901 )	2026-10-02 16:02:13 -07:00
Kit Langton	54956aac22	chore: enable noUnusedLocals in ai and core (#52858 )	2026-10-02 22:45:27 +00:00
Kit Langton	c1536734ce	chore(cli): enable noUnusedLocals (#52857 )	2026-10-02 22:45:05 +00:00
Kit Langton	cf7fcfad0a	chore(app): enable noUnusedLocals (#52856 )	2026-10-02 22:44:02 +00:00
Kit Langton	17955a1100	refactor(core): remove duplicate v1 config migration (#51889 )	2026-10-02 15:40:41 -07:00
Kit Langton	c0c9c69a27	chore(tui): enable noUnusedLocals (#52851 )	2026-10-02 22:36:03 +00:00
Kit Langton	eb1a9ea4d9	chore: enable noUnusedLocals in schema, server, sdk and smaller packages (#52850 )	2026-10-02 15:23:59 -07:00
Kit Langton	680bca3183	chore: enable noUnusedLocals in already-clean packages (#52849 )	2026-10-02 15:23:50 -07:00
Kit Langton	22f81eed0b	test(tui): drop title shimmer animation timing tests (#52848 )	2026-10-02 15:23:31 -07:00
Aiden Cline	421a04f5fd	fix(core): retry transient MCP connect failures (#52614 )	2026-10-02 17:22:25 -05:00
Jérôme BenoitandTest User	ec541abbcd	chore(nix): run the nix eval workflow on v2 (#52143 ) Co-authored-by: Test User <test@test.com>	2026-10-02 16:52:46 -05:00
Kit Langton	4c63a35dbe	refactor(schema): drop unused FileAttachment re-export from SessionEvent (#52842 )	2026-10-02 21:35:12 +00:00
Kit Langton	0e4dd7bfe9	refactor(ai): remove unused declarations in OpenAI chat protocol (#52840 )	2026-10-02 21:33:58 +00:00
Kit Langton	e28a624b8b	refactor(core): remove unused git strategy in worktree layer (#52841 )	2026-10-02 21:28:27 +00:00
Kit Langton	9277761af6	refactor(schema): remove unused QuestionV1 contract (#52838 )	2026-10-02 21:28:13 +00:00
Kit Langton	0bef0eab67	refactor(core): remove legacy id prefix table (#52810 )	2026-10-02 18:40:26 +00:00
Shoubhit Dash	66d15a7352	refactor(acp): split module seams and drop dead code (#52803 )	2026-10-03 00:04:06 +05:30
Kit Langton	9f8551ab6b	refactor(core): require job ids from their subject (#52806 )	2026-10-02 18:27:13 +00:00
Kit Langton	8bcda4c718	refactor(core): name tool output files in ToolOutput (#52808 )	2026-10-02 18:24:57 +00:00
Kit Langton	ccd2aca07a	test(core): match Code Mode description after allSettled change (#52812 )	2026-10-02 18:14:27 +00:00
opencode-agent[bot]rekram1-node Aiden Cline	1391c0d52c	docs(core): recommend settled results for independent calls (#52798 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com> Co-authored-by: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>	2026-10-02 12:26:05 -05:00
Shoubhit Dash	ec90ad50d3	fix(acp): settle permissions replied elsewhere and type request failures (#52774 )	2026-10-02 22:43:32 +05:30
Shoubhit Dash	2a01ed60b1	perf(core): keep unchanged messages in request shaping (#52784 )	2026-10-02 22:12:21 +05:30
Shoubhit Dash	80caae8ad1	test(acp): keep only spec and essential tests (#52775 )	2026-10-02 22:01:49 +05:30
Jack	35a41b5d53	docs(www): add Ling 3.1 Flash Free to Console models (#52780 )	2026-10-03 00:08:55 +08:00
Aiden Cline	d49ec44298	feat(ai): add native Cohere chat provider (#52633 )	2026-10-02 11:07:02 -05:00
Shoubhit Dash	7440ff7844	chore(acp): trim comments (#52770 )	2026-10-02 20:50:09 +05:30
Shoubhit Dash	f902a0fae7	fix(cli): support Homebrew Core upgrades (#52753 )	2026-10-02 20:27:14 +05:30
Filip	661853903b	fix(tui): gate terminals on server persistent PTY support (#52760 )	2026-10-02 16:49:15 +02:00
Shoubhit Dash	06b6c916a5	refactor(acp): drop the promise client (#52751 )	2026-10-02 19:52:02 +05:30
Shoubhit Dash	bf25bd2ec7	docs(acp): document opencode protocol extensions (#52745 )	2026-10-02 19:50:17 +05:30
Filip	3ddb0cb1d3	docs: remove skill slash frontmatter from v2 docs (#52752 )	2026-10-02 15:09:38 +02:00
Filip	f3a23e52b3	feat(core): support disable-model-invocation in skill frontmatter (#52747 )	2026-10-02 15:07:30 +02:00
opencode-agent[bot]	dbe08d2ac3	chore(core): refresh bundled models.dev snapshot	2026-10-02 12:22:07 +00:00
Shoubhit Dash	77eceb8c85	fix(core): merge formatter config across files (#52739 )	2026-10-02 17:49:12 +05:30
Shoubhit Dash	e2a700dc90	fix(acp): let the model continue when a question can't be shown (#52740 )	2026-10-02 17:39:54 +05:30
Shoubhit Dash	ebad4bc84c	feat(acp): report compaction with standard session updates (#52737 )	2026-10-02 17:39:24 +05:30
opencode-agent[bot]	d82b75f090	chore: update nix node_modules hashes	2026-10-02 11:32:57 +00:00
Shoubhit Dash	134d0ede4d	fix(acp): align permission requests with the tool call spec (#52565 )	2026-10-02 16:51:36 +05:30
Shoubhit Dash	4a2c024ea7	fix(acp): detach new and resumed sessions when setup fails (#52558 )	2026-10-02 16:07:33 +05:30
Shoubhit Dash	4cb56a829e	fix(acp): send remote image links as references (#52557 )	2026-10-02 16:06:58 +05:30
opencode-agent[bot]andBrendonovich	41516c78c8	fix(app): restore Git initialization for non-Git projects (#51455 ) Co-authored-by: Brendonovich <14191578+Brendonovich@users.noreply.github.com>	2026-10-02 06:13:19 +00:00
opencode	d259ae7163	sync release versions for v2.0.22	2026-10-02 04:23:05 +00:00
Kit Langton	bb381e8bdd	refactor(core): drop unused SessionRevert error re-export (#52661 )	2026-10-02 04:14:44 +00:00
opencode-agent[bot]Brendonovich Brendan Allan	81efb7f146	fix(app): keep Working during reasoning-only turns (#51090 ) Co-authored-by: Brendonovich <14191578+Brendonovich@users.noreply.github.com> Co-authored-by: Brendan Allan <git@brendonovich.dev>	2026-10-02 12:14:04 +08:00
Kit Langton	77c5f7a516	refactor(schema): remove unused SessionV1.WithParts (#52662 )	2026-10-02 04:11:35 +00:00
Kit Langton	4a18a86653	refactor(schema): remove unused IDE event definition (#52660 )	2026-10-02 04:11:15 +00:00
Jérôme BenoitandTest User	c07905012f	fix(nix): repair three packaging defects on the v2 branch (#51891 ) Co-authored-by: Test User <test@test.com>	2026-10-01 23:09:54 -05:00
opencode-agent[bot]andrekram1-node	e067948dd5	refactor(worktree): tag errors without changing the API (#52631 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-10-01 23:09:27 -05:00
Aiden Cline	64744ce034	fix(core): explain why the provider blocked a compaction (#52664 )	2026-10-01 23:07:32 -05:00
Kit Langton	840cd232a8	refactor(core): remove orphaned filesystem ignore patterns (#52658 )	2026-10-02 04:05:58 +00:00
Kit Langton	ce97dd2805	refactor(core): drop unused imports (#52659 )	2026-10-02 04:05:40 +00:00
Kit Langton	f00390665f	refactor(core): remove unused aisdk text helper (#52657 )	2026-10-02 04:05:05 +00:00
Kit Langton	05018b8862	refactor(schema): export Identifier namespace and drop core re-export (#52644 )	2026-10-02 03:46:17 +00:00
Aiden Cline	1404566141	refactor(core): type directory initialization errors (#52649 )	2026-10-01 22:45:08 -05:00
Kit Langton	37a426e7f4	refactor(core): delete unused v1 permission and config errors (#52637 )	2026-10-02 03:29:43 +00:00
Kit Langton	ef867267a5	refactor(core): drop unused default Copilot provider instance (#52648 )	2026-10-02 03:29:28 +00:00
Kit Langton	e366ab40c4	refactor(core): delete unused Newtype helper (#52647 )	2026-10-02 03:27:38 +00:00
Kit Langton	317dfbc6b3	fix(ai): report mid-stream connection loss instead of a decode error (#52634 )	2026-10-02 03:21:36 +00:00
James Long	a8761745a2	fix(core): accept partial model capabilities in native provider config (#51365 )	2026-10-01 22:15:01 -05:00
Luke Parker	b47d8db9bc	fix(app): keep stuck timeline headers out of the title fade (#52639 )	2026-10-02 12:59:37 +10:00
Aiden Clineandrekram1-node	4c0d0ff478	fix(core): default provider header and chunk timeouts to five minutes (#49229 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-10-01 21:41:53 -05:00
Luke Parker	ba0eeddff4	fix(app): keep browser surface aligned through layout transitions (#52632 )	2026-10-02 12:36:43 +10:00
Aiden Cline	3bae692dd2	fix(ai): enable Alibaba chat prompt caching (#52612 )	2026-10-01 20:56:45 -05:00
Luke Parker	56145fce05	fix(app): restore pre-extension behavior found in the A/B audit (#52620 )	2026-10-02 11:41:46 +10:00
opencode-agent[bot]andrekram1-node	4f0d6d0ab6	docs(tui): correct shortcut reference (#52606 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-10-01 20:24:10 -05:00
opencode-agent[bot]andrekram1-node	5fdeed271d	docs(compaction): use authenticated API command (#52608 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-10-01 20:23:58 -05:00
opencode-agent[bot]andrekram1-node	ab5d49666a	docs(plugin): align session methods with API (#52607 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-10-01 19:58:30 -05:00