chore: update nix node_modules hashes

chore(core): upgrade drizzle orm to rc5 (#44573 )
fix(image): degrade photon resizer load failure to typed error on workerd (#43894 )
2026-08-24 02:26:24 +00:00 · 2026-08-24 02:18:31 +00:00 · 2026-08-23 21:56:02 -04:00 · 2026-08-23 21:44:01 -04:00 · 2026-08-24 11:22:42 +10:00 · 2026-08-23 20:21:15 -05:00
174 changed files with 4828 additions and 2259 deletions
@@ -0,0 +1,6 @@
+---
+"@opencode-ai/client": patch
+"@opencode-ai/plugin": patch
+---
+
+Add form reply and cancellation operations that reconcile terminal forms in the local TUI projection.
@@ -84,6 +84,11 @@ jobs:
        env:
          OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER: ${{ runner.os == 'Windows' && 'true' || 'false' }}

+      - name: Verify published codemode package
+        if: runner.os == 'Linux'
+        working-directory: packages/codemode
+        run: bun run script/publish.ts --dry-run
+
      - name: Verify compiled service lifecycle
        if: always()
        timeout-minutes: 10
@@ -54,12 +54,12 @@
      "name": "@opencode-ai/app",
      "version": "1.18.15",
      "dependencies": {
-        "@ibm/plex": "6.4.1",
        "@corvu/drawer": "catalog:",
        "@dnd-kit/abstract": "0.5.0",
        "@dnd-kit/dom": "0.5.0",
        "@dnd-kit/helpers": "0.5.0",
        "@dnd-kit/solid": "0.5.0",
+        "@ibm/plex": "6.4.1",
        "@kobalte/core": "catalog:",
        "@opencode-ai/client": "workspace:*",
        "@opencode-ai/schema": "workspace:*",
@@ -191,7 +191,7 @@
        "solid-js": "catalog:",
      },
      "peerDependencies": {
-        "effect": "4.0.0-rc.110",
+        "effect": "4.0.0-rc.111",
        "solid-js": ">=1.9.0",
      },
      "optionalPeers": [
@@ -525,7 +525,7 @@
      "name": "@opencode-ai/http-recorder",
      "version": "1.18.15",
      "dependencies": {
-        "@effect/platform-node-shared": "4.0.0-rc.110",
+        "@effect/platform-node-shared": "4.0.0-rc.111",
      },
      "devDependencies": {
        "@effect/platform-node": "catalog:",
@@ -671,6 +671,7 @@
        "effect": "catalog:",
      },
      "devDependencies": {
+        "@opencode-ai/ai": "workspace:*",
        "@opencode-ai/httpapi-codegen": "workspace:*",
        "@opencode-ai/protocol": "workspace:*",
        "@tsconfig/bun": "catalog:",
@@ -1054,7 +1055,6 @@
  "patchedDependencies": {
    "@pierre/trees@1.0.0-beta.4": "patches/@pierre%2Ftrees@1.0.0-beta.4.patch",
    "@tanstack/virtual-core@3.17.8": "patches/@tanstack%2Fvirtual-core@3.17.8.patch",
-    "drizzle-orm@1.0.0-rc.2": "patches/drizzle-orm@1.0.0-rc.2.patch",
    "@modelcontextprotocol/sdk@1.29.0": "patches/@modelcontextprotocol%2Fsdk@1.29.0.patch",
    "@standard-community/standard-openapi@0.2.9": "patches/@standard-community%2Fstandard-openapi@0.2.9.patch",
    "@ai-sdk/mistral@3.0.51": "patches/@ai-sdk%2Fmistral@3.0.51.patch",
@@ -1078,10 +1078,10 @@
  "catalog": {
    "@cloudflare/workers-types": "4.20251008.0",
    "@corvu/drawer": "0.2.4",
-    "@effect/opentelemetry": "4.0.0-rc.110",
-    "@effect/platform-node": "4.0.0-rc.110",
-    "@effect/platform-node-shared": "4.0.0-rc.110",
-    "@effect/sql-sqlite-bun": "4.0.0-rc.110",
+    "@effect/opentelemetry": "4.0.0-rc.111",
+    "@effect/platform-node": "4.0.0-rc.111",
+    "@effect/platform-node-shared": "4.0.0-rc.111",
+    "@effect/sql-sqlite-bun": "4.0.0-rc.111",
    "@hono/standard-validator": "0.2.0",
    "@hono/zod-validator": "0.4.2",
    "@kobalte/core": "0.13.11",
@@ -1116,9 +1116,9 @@
    "cross-spawn": "7.0.6",
    "diff": "8.0.2",
    "dompurify": "3.3.1",
-    "drizzle-kit": "1.0.0-rc.2",
-    "drizzle-orm": "1.0.0-rc.2",
-    "effect": "4.0.0-rc.110",
+    "drizzle-kit": "1.0.0-rc.5-ab785fc",
+    "drizzle-orm": "1.0.0-rc.5-169397b",
+    "effect": "4.0.0-rc.111",
    "fuzzysort": "3.1.0",
    "get-east-asian-width": "1.6.0",
    "hono": "4.10.7",
@@ -1683,15 +1683,15 @@

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-    "@drizzle-team/brocli": ["@drizzle-team/brocli@0.11.0", "", {}, "sha512-hD3pekGiPg0WPCCGAZmusBBJsDqGUR66Y452YgQsZOnkdQ7ViEPKuyP4huUGEZQefp8g34RRodXYmJ2TbCH+tg=="],
+    "@drizzle-team/brocli": ["@drizzle-team/brocli@0.12.0", "", {}, "sha512-mlUE+rZ8CatQekLhnaiN91Iemdd+e2gFKooGlnRB3oPTL3VghLfX24dx7HrzMNeC1JrIB/0kpsfyty3f5HNfxQ=="],

-    "@effect/opentelemetry": ["@effect/opentelemetry@4.0.0-rc.110", "", { "peerDependencies": { "@opentelemetry/api": ">=1.9.0 <2.0.0", "@opentelemetry/api-logs": ">=0.203.0 <0.300.0", "@opentelemetry/resources": ">=2.0.0 <3.0.0", "@opentelemetry/sdk-logs": ">=0.203.0 <0.300.0", "@opentelemetry/sdk-metrics": ">=2.0.0 <3.0.0", "@opentelemetry/sdk-trace-base": ">=2.0.0 <3.0.0", "@opentelemetry/sdk-trace-node": ">=2.0.0 <3.0.0", "@opentelemetry/sdk-trace-web": ">=2.0.0 <3.0.0", "@opentelemetry/semantic-conventions": ">=1.33.0 <2.0.0", "effect": "^4.0.0-rc.110" }, "optionalPeers": ["@opentelemetry/api", "@opentelemetry/api-logs", "@opentelemetry/resources", "@opentelemetry/sdk-logs", "@opentelemetry/sdk-metrics", "@opentelemetry/sdk-trace-base", "@opentelemetry/sdk-trace-node", "@opentelemetry/sdk-trace-web"] }, "sha512-8Uum1ikIAK2DjATeLseS71HZKVI/dduFYypvMhiO68RTli1xq9yaoTI1Y0IThPn2sI0i86ZdpFaKQx1hdw2tWw=="],
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-    "@effect/sql-sqlite-bun": ["@effect/sql-sqlite-bun@4.0.0-rc.110", "", { "peerDependencies": { "effect": "^4.0.0-rc.110" } }, "sha512-Lam3gY1xszjQS/cebdLbWbtR21FtQI4ke7QHqbBQ6AyVJF0CGUtS/ePL9zNq6wHNmJ95FUDGS6W+Qx/l6RPSzA=="],
+    "@effect/sql-sqlite-bun": ["@effect/sql-sqlite-bun@4.0.0-rc.111", "", { "peerDependencies": { "effect": "^4.0.0-rc.111" } }, "sha512-u5HqWLYISTH5ydsCr45nOGmkspmAeNzK4q+plMrJntDoG8sQttwizC4akGfbQDgoSxyYfyBzi3YyVW/NvhvSQQ=="],

    "@electron/asar": ["@electron/asar@3.4.1", "", { "dependencies": { "commander": "^5.0.0", "glob": "^7.1.6", "minimatch": "^3.0.4" }, "bin": { "asar": "bin/asar.js" } }, "sha512-i4/rNPRS84t0vSRa2HorerGRXWyF4vThfHesw0dmcWHp+cspK743UanA0suA5Q5y8kzY2y6YKrvbIUn69BCAiA=="],

@@ -3217,12 +3217,6 @@

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-    "@vercel/cli-config": ["@vercel/cli-config@0.2.3", "", { "dependencies": { "xdg-app-paths": "5", "zod": "4.1.11" } }, "sha512-Ggh0Wmi92TUkUexmSUPkkDtvJmbjUr7IvF5T3FkSsWrXXs3GFzOujfxFpECdJZpux1JG4SWDv9BT4w++TDgD6A=="],
-
-    "@vercel/cli-exec": ["@vercel/cli-exec@1.0.1", "", { "dependencies": { "execa": "5.1.1" } }, "sha512-g9XerViJ/paZujufXYcu5XYI2vU2rtB4sgdpjUHde5RnOkdmpu0ngH46LCFGHoPXO/C+qDPSczIHIRN+8Q2YKQ=="],
-
-    "@vercel/functions": ["@vercel/functions@3.9.3", "", { "dependencies": { "@vercel/oidc": "3.8.4" }, "peerDependencies": { "@aws-sdk/credential-provider-web-identity": "*", "ws": ">=8" }, "optionalPeers": ["@aws-sdk/credential-provider-web-identity", "ws"] }, "sha512-cbzTdASCZDnufrABc8oO00e/FqlqFFSdld+iGZPhrWBDHP4Pu8ESKKYIzASqYvbYYUIWujBvEa5LLCcZzm7WEw=="],
-
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@@ -3835,9 +3829,9 @@

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-    "drizzle-kit": ["drizzle-kit@1.0.0-rc.2", "", { "dependencies": { "@drizzle-team/brocli": "^0.11.0", "@js-temporal/polyfill": "^0.5.1", "esbuild": "^0.25.10", "get-tsconfig": "^4.13.6", "jiti": "^2.6.1" }, "bin": { "drizzle-kit": "bin.cjs" } }, "sha512-TRxUmj1wDA2QCt3GvuhfamvIa66wJ7+MzSxBMKkpRtYScjHTumT9BE+x6daSzuEacSrPEuUH5/cW1uo5RkoPIg=="],
+    "drizzle-kit": ["drizzle-kit@1.0.0-rc.5-ab785fc", "", { "dependencies": { "@drizzle-team/brocli": "^0.12.0", "@js-temporal/polyfill": "^0.5.1", "esbuild": "^0.25.10", "get-tsconfig": "^4.13.6", "jiti": "^2.6.1" }, "bin": { "drizzle-kit": "bin.cjs" } }, "sha512-TSg7sK1finOxdo48O9mDfyMY3lhi/aHCVIil5TFhthyq/H/89H/3nwX5V9Gdp7HYMUGFHyWJD5iowSn98l0elw=="],

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@@ -4869,8 +4851,6 @@

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@@ -5453,8 +5433,6 @@

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@@ -5847,10 +5825,6 @@

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@@ -6173,6 +6147,8 @@

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+    "@effect/platform-node-shared/ws": ["ws@8.21.3", "", { "peerDependencies": { "bufferutil": "^4.0.1", "utf-8-validate": ">=5.0.2" }, "optionalPeers": ["bufferutil", "utf-8-validate"] }, "sha512-201TZ/kPWxoPr/OKWjquZR1SWKXcvxdH+e1xrx89b3YbmzLMFCLfnaG1HFIgWzJOEWZ7MvpK++odZufgYR50Rw=="],
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@@ -6421,10 +6397,6 @@

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@@ -6527,6 +6499,8 @@

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@@ -6563,10 +6537,6 @@

    "esbuild-plugin-copy/chokidar": ["chokidar@3.6.0", "", { "dependencies": { "anymatch": "~3.1.2", "braces": "~3.0.2", "glob-parent": "~5.1.2", "is-binary-path": "~2.1.0", "is-glob": "~4.0.1", "normalize-path": "~3.0.0", "readdirp": "~3.6.0" }, "optionalDependencies": { "fsevents": "~2.3.2" } }, "sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw=="],

-    "execa/get-stream": ["get-stream@6.0.1", "", {}, "sha512-ts6Wi+2j3jQjqi70w5AlN8DFnkSwC+MqmxEzdEALB2qXZYV3X/b1CTfgPLGJNMeAWxdPfU8FO1ms3NUfaHCPYg=="],
-
-    "execa/signal-exit": ["signal-exit@3.0.7", "", {}, "sha512-wnD2ZE+l+SPC/uoS0vXeE9L1+0wuaMqKlfz9AMUo38JsyLSBWSFcHR1Rri62LZc12vLr1gb3jl7iwQhgwpAbGQ=="],
-
    "express/cookie": ["cookie@0.7.2", "", {}, "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w=="],

    "fetch-blob/web-streams-polyfill": ["web-streams-polyfill@3.3.3", "", {}, "sha512-d2JWLCivmZYTSIoge9MsgFCZrt571BikcWGYkjC1khllbTeDlGqZ2D8vD8E/lJa8WGWbb7Plm8/XJYV7IJHZZw=="],
@@ -7323,8 +7293,6 @@

    "@tailwindcss/node/lightningcss/lightningcss-win32-x64-msvc": ["lightningcss-win32-x64-msvc@1.32.0", "", { "os": "win32", "cpu": "x64" }, "sha512-Amq9B/SoZYdDi1kFrojnoqPLxYhQ4Wo5XiL8EVJrVsB8ARoC1PWW6VGtT0WKCemjy8aC+louJnjS7U18x3b06Q=="],

-    "@vercel/functions/@vercel/oidc/jose": ["jose@5.9.6", "", {}, "sha512-AMlnetc9+CV9asI19zHmrgS/WYsWUwCn2R7RzlbJWD7F9eWYUTGyBmU9o6PxngtLGOiDGPRu+Uc4fhKzbpteZQ=="],
-
    "@vitest/expect/@vitest/utils/@vitest/pretty-format": ["@vitest/pretty-format@3.2.4", "", { "dependencies": { "tinyrainbow": "^2.0.0" } }, "sha512-IVNZik8IVRJRTr9fxlitMKeJeXFFFN0JaB9PHPGQ8NKQbGpfjlTx9zO4RefN8gp7eqjNy8nyK3NZmBzOPeIxtA=="],

    "ai-gateway-provider/@ai-sdk/openai/@ai-sdk/provider": ["@ai-sdk/provider@3.0.14", "", { "dependencies": { "json-schema": "^0.4.0" } }, "sha512-5X1k57JBJ4H7H1QjX7CnJYAB1I19r/trVZTMcSms7/kLNZ8RaU4Nt2agcwZzv82Hfx6Q7/TOLU7agAKeFfc8cA=="],
@@ -1,8 +1,8 @@
 {
  "nodeModules": {
-    "x86_64-linux": "sha256-P8AZ2THuXiET4hiSYTwGGdTgbm2l3XGZGJxQwg6lusE=",
-    "aarch64-linux": "sha256-73LxDeDPQspY4Bn/gbGU43j/k7gBZ5ywMMpUjDl3elg=",
-    "aarch64-darwin": "sha256-sc9YyTAFlbWxlFb9vwFYLs6IYd3SRoju9mQufzeQdd8=",
-    "x86_64-darwin": "sha256-nnk637DELjzGB3t9aLDYbHz5h3Dd3nvWcWGdaQk8yPM="
+    "x86_64-linux": "sha256-iou+Ej/822crZq1EwR/eX7WzNVAf1sKKjc3eAr2pMJE=",
+    "aarch64-linux": "sha256-XYLgqMyZHClngu+LZVR2JngY/0f4U4cbiGkuMc3nr40=",
+    "aarch64-darwin": "sha256-rUtWNzK3s56LT4aEuoN4nSf1a1+AhWklBjz/GrhnTKU=",
+    "x86_64-darwin": "sha256-7BTJEefqMLddRM7eWbPcPQdGTkszXcucazkDffaXm/0="
  }
 }
@@ -39,10 +39,10 @@
      "packages/stats/*"
    ],
    "catalog": {
-      "@effect/opentelemetry": "4.0.0-rc.110",
-      "@effect/platform-node": "4.0.0-rc.110",
-      "@effect/platform-node-shared": "4.0.0-rc.110",
-      "@effect/sql-sqlite-bun": "4.0.0-rc.110",
+      "@effect/opentelemetry": "4.0.0-rc.111",
+      "@effect/platform-node": "4.0.0-rc.111",
+      "@effect/platform-node-shared": "4.0.0-rc.111",
+      "@effect/sql-sqlite-bun": "4.0.0-rc.111",
      "@npmcli/arborist": "9.4.0",
      "@types/bun": "1.3.13",
      "@types/cross-spawn": "6.0.6",
@@ -71,9 +71,9 @@
      "@tailwindcss/vite": "4.1.11",
      "diff": "8.0.2",
      "dompurify": "3.3.1",
-      "drizzle-kit": "1.0.0-rc.2",
-      "drizzle-orm": "1.0.0-rc.2",
-      "effect": "4.0.0-rc.110",
+      "drizzle-kit": "1.0.0-rc.5-ab785fc",
+      "drizzle-orm": "1.0.0-rc.5-169397b",
+      "effect": "4.0.0-rc.111",
      "ai": "6.0.168",
      "cross-spawn": "7.0.6",
      "hono": "4.10.7",
@@ -166,7 +166,6 @@
    "@npmcli/agent@4.0.2": "patches/@npmcli%2Fagent@4.0.2.patch",
    "@silvia-odwyer/photon-node@0.3.4": "patches/@silvia-odwyer%2Fphoton-node@0.3.4.patch",
    "@standard-community/standard-openapi@0.2.9": "patches/@standard-community%2Fstandard-openapi@0.2.9.patch",
-    "drizzle-orm@1.0.0-rc.2": "patches/drizzle-orm@1.0.0-rc.2.patch",
    "solid-js@1.9.10": "patches/solid-js@1.9.10.patch",
    "@ai-sdk/mistral@3.0.51": "patches/@ai-sdk%2Fmistral@3.0.51.patch",
    "gcp-metadata@8.1.2": "patches/gcp-metadata@8.1.2.patch",
@@ -213,7 +213,7 @@ Errors must be expressed as `ToolFailure`. The runtime catches it and emits a `t
 - Input failed the `parameters` Schema.
 - The handler returned a `ToolFailure`.

-Provider-defined / hosted tools (Anthropic `web_search` / `code_execution` / `web_fetch`, OpenAI Responses `web_search_call` / `file_search_call` / `code_interpreter_call` / `mcp_call` / `local_shell_call` / `image_generation_call` / `computer_use_call`) pass through the runtime untouched:
+Provider-defined / hosted tools (Anthropic `web_search` / `code_execution` / `web_fetch`, OpenAI Responses `web_search_call` / `file_search_call` / `code_interpreter_call` / `mcp_call` / `image_generation_call` / `computer_use_call`) pass through the runtime untouched:

 - Routes surface the model's call as a `tool-call` event with `providerExecuted: true`, and the provider's result as a matching `tool-result` event with `providerExecuted: true`.
 - Callers detect `providerExecuted` on `tool-call` and **skip local dispatch** — no handler is invoked and no `tool-error` is raised for "unknown tool". The provider already executed it.
@@ -41,6 +41,7 @@ const SSE_EVENTS = new Set([
  "content_block_start",
  "content_block_delta",
  "content_block_stop",
+  "ping",
  "error",
 ])
 export const framing = Framing.sseEvents(SSE_EVENTS)
@@ -53,7 +54,7 @@ export type ThinkingInput =
  | {
      readonly type: "disabled"
    }
-  | ({ readonly type: "enabled" } & (
+  | ({ readonly type: "enabled"; readonly display?: "summarized" | "omitted" } & (
      | { readonly budgetTokens: number; readonly budget_tokens?: number }
      | { readonly budgetTokens?: number; readonly budget_tokens: number }
    ))
@@ -212,6 +213,7 @@ const AnthropicThinking = Schema.Union([
  Schema.Struct({
    type: Schema.tag("enabled"),
    budget_tokens: Schema.Number,
+    display: Schema.optional(Schema.Literals(["summarized", "omitted"])),
  }),
  Schema.Struct({
    type: Schema.tag("adaptive"),
@@ -614,15 +616,12 @@ const resolveOptions = Effect.fn("AnthropicMessages.resolveOptions")(function* (

 const resolveThinking = Effect.fn("AnthropicMessages.resolveThinking")(function* (input: unknown) {
  if (!ProviderShared.isRecord(input)) return undefined
-  if (input.type === "adaptive") {
-    const display =
-      input.display === "summarized"
-        ? ("summarized" as const)
-        : input.display === "omitted"
-          ? ("omitted" as const)
-          : undefined
+  const display =
+    input.display === "summarized" || input.display === "omitted"
+      ? (input.display as "summarized" | "omitted")
+      : undefined
+  if (input.type === "adaptive")
    return { type: "adaptive" as const, ...(display === undefined ? {} : { display }) }
-  }
  if (input.type === "disabled") return { type: "disabled" as const }
  if (input.type !== "enabled") return undefined
  const budget =
@@ -633,7 +632,7 @@ const resolveThinking = Effect.fn("AnthropicMessages.resolveThinking")(function*
        : undefined
  if (budget === undefined)
    return yield* ProviderShared.invalidRequest("Anthropic thinking provider option requires budgetTokens")
-  return { type: "enabled" as const, budget_tokens: budget }
+  return { type: "enabled" as const, budget_tokens: budget, ...(display === undefined ? {} : { display }) }
 })

 const fromRequest = Effect.fn("AnthropicMessages.fromRequest")(function* (request: LLMRequest) {
@@ -1004,11 +1003,13 @@ const providerErrorMessage = (event: AnthropicEvent): string => {
 }

 const onError = (event: AnthropicEvent) =>
-  new AIError({
-    module: ADAPTER,
-    method: "stream",
-    reason: classifyProviderFailure({ message: providerErrorMessage(event), code: event.error?.type }),
-  })
+  Effect.fail(
+    new AIError({
+      module: ADAPTER,
+      method: "stream",
+      reason: classifyProviderFailure({ message: providerErrorMessage(event), code: event.error?.type }),
+    }),
+  )

 const step = (state: ParserState, event: AnthropicEvent) => {
  if (event.type === "message_start") return Effect.succeed(onMessageStart(state, event))
@@ -17,7 +17,7 @@ import {
  type ToolCallPart,
  type ToolDefinition,
 } from "../schema/index.js"
-import { JsonObject, optionalArray, ProviderShared } from "./shared.js"
+import { JsonObject, optionalArray, optionalNull, ProviderShared } from "./shared.js"
 import { GeminiToolSchema } from "./utils/gemini-tool-schema.js"
 import { Lifecycle } from "./utils/lifecycle.js"
 import { ToolSchemaProjection } from "./utils/tool-schema.js"
@@ -41,6 +41,13 @@ const requiresThoughtSignatureFallback = (modelID: string) => {
 // so their tool-result attachments lower as a separate user turn instead.
 const routesLegacyToolMedia = (modelID: string) => /gemini-2[.-]5(?:[.-]|$)/i.test(modelID)

+// Blacklist: Gemini 1.x/2.x ignore or reject explicit function call ids.
+// Every other model id (Gemini 3+, gemma, anything unrecognized) gets them.
+const omitsFunctionCallIds = (modelID: string) => {
+  const match = /^gemini(?:-live)?-(\d+)/i.exec(modelID)
+  return match !== null && Number(match[1]) < 3
+}
+
 export interface OptionsInput {
  readonly [key: string]: unknown
  readonly cachedContent?: string
@@ -75,10 +82,15 @@ export type ProviderOptionsInput = OptionsInput
 // =============================================================================
 // Request Body Schema
 // =============================================================================
+// Gemini is known to send explicit `null` for optional streaming fields
+// (usage counts, flags, whole subtrees), so every response-side optional uses
+// `optionalNull` instead of bare `Schema.optional`. The same part/content
+// schemas lower the outbound request body; encoding drops `undefined` keys,
+// so the shared schemas stay safe there.
 const GeminiTextPart = Schema.Struct({
  text: Schema.String,
-  thought: Schema.optional(Schema.Boolean),
-  thoughtSignature: Schema.optional(Schema.String),
+  thought: optionalNull(Schema.Boolean),
+  thoughtSignature: optionalNull(Schema.String),
 })

 const GeminiInlineDataPart = Schema.Struct({
@@ -91,11 +103,11 @@ type GeminiInlineDataPart = Schema.Schema.Type<typeof GeminiInlineDataPart>

 const GeminiFunctionCallPart = Schema.Struct({
  functionCall: Schema.Struct({
-    id: Schema.optional(Schema.String),
+    id: optionalNull(Schema.String),
    name: Schema.String,
    args: Schema.optional(Schema.Unknown),
  }),
-  thoughtSignature: Schema.optional(Schema.String),
+  thoughtSignature: optionalNull(Schema.String),
 })

 const GeminiFunctionResponsePart = Schema.Struct({
@@ -115,8 +127,8 @@ const GeminiContentPart = Schema.Union([
 ])

 const GeminiContent = Schema.Struct({
-  role: Schema.Literals(["user", "model"]),
-  parts: Schema.Array(GeminiContentPart),
+  role: optionalNull(Schema.Literals(["user", "model"])),
+  parts: optionalNull(Schema.Array(GeminiContentPart)),
 })
 type GeminiContent = Schema.Schema.Type<typeof GeminiContent>

@@ -179,33 +191,33 @@ const GeminiBody = Schema.Struct(GeminiBodyFields)
 export type GeminiBody = Schema.Schema.Type<typeof GeminiBody>

 const GeminiUsage = Schema.Struct({
-  cachedContentTokenCount: Schema.optional(Schema.Number),
-  thoughtsTokenCount: Schema.optional(Schema.Number),
-  promptTokenCount: Schema.optional(Schema.Number),
-  candidatesTokenCount: Schema.optional(Schema.Number),
-  totalTokenCount: Schema.optional(Schema.Number),
+  cachedContentTokenCount: optionalNull(Schema.Number),
+  thoughtsTokenCount: optionalNull(Schema.Number),
+  promptTokenCount: optionalNull(Schema.Number),
+  candidatesTokenCount: optionalNull(Schema.Number),
+  totalTokenCount: optionalNull(Schema.Number),
 })
 type GeminiUsage = Schema.Schema.Type<typeof GeminiUsage>

 const GeminiCandidate = Schema.Struct({
-  content: Schema.optional(GeminiContent),
-  finishReason: Schema.optional(Schema.String),
+  content: optionalNull(GeminiContent),
+  finishReason: optionalNull(Schema.String),
 })

 const GeminiPromptFeedback = Schema.StructWithRest(
  Schema.Struct({
-    blockReason: Schema.optional(Schema.String),
-    blockReasonMessage: Schema.optional(Schema.String),
-    safetyRatings: Schema.optional(Schema.Unknown),
+    blockReason: optionalNull(Schema.String),
+    blockReasonMessage: optionalNull(Schema.String),
+    safetyRatings: optionalNull(Schema.Unknown),
  }),
  [Schema.Record(Schema.String, Schema.Unknown)],
 )
 type GeminiPromptFeedback = Schema.Schema.Type<typeof GeminiPromptFeedback>

 const GeminiEvent = Schema.Struct({
-  candidates: optionalArray(GeminiCandidate),
-  promptFeedback: Schema.optional(GeminiPromptFeedback),
-  usageMetadata: Schema.optional(GeminiUsage),
+  candidates: optionalNull(Schema.Array(GeminiCandidate)),
+  promptFeedback: optionalNull(GeminiPromptFeedback),
+  usageMetadata: optionalNull(GeminiUsage),
 })
 type GeminiEvent = Schema.Schema.Type<typeof GeminiEvent>

@@ -217,6 +229,7 @@ interface ParserState {
  readonly lifecycle: Lifecycle.State
  readonly reasoningSignature?: string
  readonly textSignature?: string
+  readonly seenCallIds?: ReadonlySet<string>
 }

 // =============================================================================
@@ -274,20 +287,14 @@ const thoughtSignature = (providerMetadata: ProviderMetadata | undefined) => {
    : undefined
 }

-const functionCallId = (providerMetadata: ProviderMetadata | undefined) => {
-  const google = providerMetadata?.google
-  return ProviderShared.isRecord(google) && typeof google.functionCallId === "string"
-    ? google.functionCallId
-    : undefined
-}
-
-const lowerToolCall = (part: ToolCallPart) => ({
-  functionCall: { id: functionCallId(part.providerMetadata), name: part.name, args: part.input },
+const lowerToolCall = (part: ToolCallPart, omitIds: boolean) => ({
+  functionCall: { ...(omitIds ? {} : { id: part.id }), name: part.name, args: part.input },
  thoughtSignature: thoughtSignature(part.providerMetadata),
 })

 const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMRequest) {
  const contents: GeminiContent[] = []
+  const omitCallIds = omitsFunctionCallIds(request.model.id)
  const legacyToolMedia = routesLegacyToolMedia(request.model.id)
  let pendingMedia: GeminiInlineDataPart[] | undefined
  const flushMedia = () => {
@@ -303,8 +310,8 @@ const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMR
      const previous = contents.at(-1)
      // Gemini rejects a continuation whose function-response turn carries extra
      // parts, so an update after a tool result starts its own user turn.
-      if (previous?.role === "user" && !previous.parts.some((item) => "functionResponse" in item))
-        contents[contents.length - 1] = { role: "user", parts: [...previous.parts, { text: part.text }] }
+      if (previous?.role === "user" && !(previous.parts ?? []).some((item) => "functionResponse" in item))
+        contents[contents.length - 1] = { role: "user", parts: [...(previous.parts ?? []), { text: part.text }] }
      else contents.push({ role: "user", parts: [{ text: part.text }] })
      continue
    }
@@ -336,7 +343,7 @@ const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMR
          continue
        }
        if (part.type === "tool-call") {
-          const lowered = lowerToolCall(part)
+          const lowered = lowerToolCall(part, omitCallIds)
          const signature = lowered.thoughtSignature
          parts.push({
            ...lowered,
@@ -361,7 +368,7 @@ const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMR
      if (part.result.type !== "content") {
        parts.push({
          functionResponse: {
-            id: functionCallId(part.providerMetadata),
+            ...(omitCallIds ? {} : { id: part.id }),
            name: part.name,
            response: {
              name: part.name,
@@ -382,7 +389,7 @@ const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMR
      if (legacyToolMedia && media.length > 0) (pendingMedia ??= []).push(...media)
      parts.push({
        functionResponse: {
-          id: functionCallId(part.providerMetadata),
+          ...(omitCallIds ? {} : { id: part.id }),
          name: part.name,
          response: {
            name: part.name,
@@ -395,8 +402,8 @@ const lowerMessages = Effect.fn("Gemini.lowerMessages")(function* (request: LLMR
    // Gemini requires every response to a parallel call batch in one user turn,
    // so consecutive tool results join the open function-response turn.
    const previous = contents.at(-1)
-    if (previous?.role === "user" && previous.parts.some((item) => "functionResponse" in item))
-      contents[contents.length - 1] = { role: "user", parts: [...previous.parts, ...parts] }
+    if (previous?.role === "user" && (previous.parts ?? []).some((item) => "functionResponse" in item))
+      contents[contents.length - 1] = { role: "user", parts: [...(previous.parts ?? []), ...parts] }
    else contents.push({ role: "user", parts })
  }

@@ -486,21 +493,25 @@ const fromRequest = Effect.fn("Gemini.fromRequest")(function* (request: LLMReque
 // to produce the inclusive `outputTokens` the rest of the contract expects.
 const mapUsage = (usage: GeminiUsage | undefined) => {
  if (!usage) return undefined
-  const cached = usage.cachedContentTokenCount
-  const nonCached = ProviderShared.subtractTokens(usage.promptTokenCount, cached)
+  // Explicit provider nulls decode as `null`; normalize to `undefined` so the
+  // token arithmetic below treats them like absent counts.
+  const promptTokens = usage.promptTokenCount ?? undefined
+  const cached = usage.cachedContentTokenCount ?? undefined
+  const thoughts = usage.thoughtsTokenCount ?? undefined
+  const visible = usage.candidatesTokenCount ?? undefined
+  const nonCached = ProviderShared.subtractTokens(promptTokens, cached)
  // `candidatesTokenCount` is visible-only; sum with thoughts to produce the
  // inclusive `outputTokens` the contract expects. Only compute the total
  // when the visible component is reported — otherwise we'd fabricate an
  // inclusive number from a partial breakdown.
-  const outputTokens =
-    usage.candidatesTokenCount !== undefined ? usage.candidatesTokenCount + (usage.thoughtsTokenCount ?? 0) : undefined
+  const outputTokens = visible !== undefined ? visible + (thoughts ?? 0) : undefined
  return new Usage({
-    inputTokens: usage.promptTokenCount,
+    inputTokens: promptTokens,
    outputTokens,
    nonCachedInputTokens: nonCached,
    cacheReadInputTokens: cached,
-    reasoningTokens: usage.thoughtsTokenCount,
-    totalTokens: ProviderShared.totalTokens(usage.promptTokenCount, outputTokens, usage.totalTokenCount),
+    reasoningTokens: thoughts,
+    totalTokens: ProviderShared.totalTokens(promptTokens, outputTokens, usage.totalTokenCount ?? undefined),
    providerMetadata: { google: usage },
  })
 }
@@ -535,7 +546,10 @@ const mapFinishReason = (finishReason: string | undefined, hasToolCalls: boolean
 }

 const finish = (state: ParserState): ReadonlyArray<LLMEvent> => {
-  const promptBlockReason = state.finishReason === undefined ? state.promptFeedback?.blockReason : undefined
+  // `?? undefined` normalizes an explicit `null` blockReason back to absent so
+  // the "nothing to finish" check below keeps its meaning.
+  const promptBlockReason =
+    state.finishReason === undefined ? (state.promptFeedback?.blockReason ?? undefined) : undefined
  const finishReason = state.finishReason ?? promptBlockReason
  if (finishReason === undefined && state.usage === undefined) return []

@@ -581,8 +595,10 @@ const step = (state: ParserState, event: GeminiEvent) => {
  let lifecycle = nextState.lifecycle
  let reasoningSignature = nextState.reasoningSignature
  let textSignature = nextState.textSignature
+  // Supplier ids must be tracked across chunks of the same response, not just within one event's parts.
+  const seenCallIds = new Set(nextState.seenCallIds)

-  for (const part of candidate.content.parts) {
+  for (const part of candidate.content.parts ?? []) {
    const signature = "thoughtSignature" in part && part.thoughtSignature ? part.thoughtSignature : undefined
    // Gemini attaches replay signatures to thought parts, visible text, or function calls;
    // each block kind must retain the signature attached to its own parts.
@@ -618,13 +634,14 @@ const step = (state: ParserState, event: GeminiEvent) => {

    if ("functionCall" in part) {
      const input = part.functionCall.args === undefined ? {} : part.functionCall.args
-      // Gemini 2.0+ and Vertex supply a unique function call ID on the part; when omitted (e.g. Gemini 1.5),
+      // Gemini 2.0+ supplies a unique function call ID on the part; when omitted (e.g. Gemini 1.5),
      // generate a globally unique ID rather than a per-request counter to prevent cross-request collisions in downstream registries.
-      const id = part.functionCall.id ?? `tool_${crypto.randomUUID().replaceAll("-", "")}`
-      const metadata = {
-        ...(part.functionCall.id === undefined ? {} : { functionCallId: part.functionCall.id }),
-        ...(part.thoughtSignature === undefined ? {} : { thoughtSignature: part.thoughtSignature }),
-      }
+      // A repeated supplier id would replay as two identical calls, so only the first occurrence keeps it.
+      // A `null` supplier id normalizes to absent so the generated-id fallback applies.
+      const supplied = part.functionCall.id ?? undefined
+      const duplicate = supplied !== undefined && seenCallIds.has(supplied)
+      if (supplied !== undefined) seenCallIds.add(supplied)
+      const id = supplied !== undefined && !duplicate ? supplied : `tool_${crypto.randomUUID().replaceAll("-", "")}`
      lifecycle = Lifecycle.reasoningEnd(
        lifecycle,
        events,
@@ -637,7 +654,8 @@ const step = (state: ParserState, event: GeminiEvent) => {
          id,
          name: part.functionCall.name,
          input,
-          providerMetadata: Object.keys(metadata).length > 0 ? googleMetadata(metadata) : undefined,
+          providerMetadata:
+            part.thoughtSignature ? googleMetadata({ thoughtSignature: part.thoughtSignature }) : undefined,
        }),
      )
      hasToolCalls = true
@@ -651,6 +669,7 @@ const step = (state: ParserState, event: GeminiEvent) => {
      lifecycle,
      reasoningSignature,
      textSignature,
+      seenCallIds,
      finishReason: candidate.finishReason ?? nextState.finishReason,
    },
    events,
@@ -112,6 +112,8 @@ const driver = (options: Options, body: string): WebSocketChannelDriver => {
          responseID = created
          return { type: "frame", frame }
        }
+        // Keepalives carry no response state and may arrive before response.created.
+        if (event.type === "keepalive") return { type: "frame", frame }
        if (!responseID)
          return yield* ProviderShared.eventError(
            options.id,
@@ -5,6 +5,7 @@ import { Protocol } from "../route/protocol.js"
 import {
  AIError,
  LLMEvent,
+  ProviderInternalReason,
  Usage,
  type FinishReason,
  type JsonSchema,
@@ -361,7 +362,7 @@ export const lowerTool = Effect.fn("OpenResponses.lowerTool")(function* (
    type: "function" as const,
    name: tool.name,
    description: tool.description,
-    parameters: ToolSchemaProjection.responses(inputSchema),
+    parameters: inputSchema,
    // The common tool definition does not currently express Responses strict-schema policy.
    strict: false,
  }
@@ -428,7 +429,7 @@ const lowerMedia = Effect.fn("OpenResponses.lowerMedia")(function* (
    return {
      type: "input_file" as const,
      filename: part.filename ?? (media.mime === "application/pdf" ? "document.pdf" : "file"),
-      ...(url ? { file_url: url } : { file_data: media.base64 }),
+      ...(url ? { file_url: url } : { file_data: media.dataUrl }),
    }
  }
  return { type: "input_image" as const, image_url: url ?? media.dataUrl }
@@ -580,10 +581,14 @@ const lowerMessages = Effect.fn("OpenResponses.lowerMessages")(function* (reques
        if (part.type === "tool-result" && part.providerExecuted === true) {
          flushText()
          const id = itemID(part.providerMetadata, providerMetadataKey)
-          if (store !== false && id && !hostedToolReferences.has(id))
-            input.push({ type: "item_reference", id })
-          if (store === false && part.result.type === "content") {
-            const content: ReadonlyArray<Content> = part.result.value
+          if (store !== false && id && !hostedToolReferences.has(id)) input.push({ type: "item_reference", id })
+          if (store === false) {
+            // The server is not storing this exchange, so the tool outcome has to
+            // travel in the input. Non-content results degrade to their text form.
+            const content: ReadonlyArray<Content> =
+              part.result.type === "content"
+                ? part.result.value
+                : [{ type: "text", text: ProviderShared.toolResultText(part) }]
            input.push({
              role: "user",
              content: yield* Effect.forEach(content, (item) =>
@@ -628,6 +633,7 @@ const lowerMessages = Effect.fn("OpenResponses.lowerMessages")(function* (reques

 const lowerOptions = (request: LLMRequest) => {
  const options = OpenResponsesOptions.resolve(request)
+  const cacheKey = ProviderShared.clampPromptCacheKey(request.promptCacheKey)
  return {
    ...(options.instructions ? { instructions: options.instructions } : {}),
    ...(options.store !== undefined ? { store: options.store } : {}),
@@ -637,7 +643,7 @@ const lowerOptions = (request: LLMRequest) => {
      ? { stream_options: { include_obfuscation: options.streamOptions.includeObfuscation } }
      : {}),
    ...(options.topLogprobs !== undefined ? { top_logprobs: options.topLogprobs } : {}),
-    ...(request.promptCacheKey ? { prompt_cache_key: request.promptCacheKey } : {}),
+    ...(cacheKey ? { prompt_cache_key: cacheKey } : {}),
    ...(options.include ? { include: options.include } : {}),
    ...(options.reasoningEffort || options.reasoningSummary
      ? { reasoning: { effort: options.reasoningEffort, summary: options.reasoningSummary } }
@@ -1105,11 +1111,19 @@ export const providerFailure = (id: string, event: Event, fallback: string) => {
      : typeof event.status_code === "number"
        ? event.status_code
        : undefined
+  const reason =
+    event.type === "error" &&
+    event.error === undefined &&
+    event.response === undefined &&
+    summary === undefined &&
+    status === undefined
+      ? new ProviderInternalReason({ message })
+      : classifyProviderFailure({ message, code, status, rawBody: body })
  return new AIError({
    module: id,
    method: "stream",
    body,
-    reason: classifyProviderFailure({ message, code, status, rawBody: body }),
+    reason,
  })
 }

@@ -1126,7 +1140,8 @@ export const step = (state: ParserState, event: Event) => {
  }
  if (event.type === "response.refusal.delta" || event.type === "response.refusal.done") {
    const value = event.type === "response.refusal.delta" ? event.delta : event.refusal
-    if (!event.item_id || typeof value !== "string") return ProviderShared.eventError(state.id, `${event.type} is malformed`)
+    if (!event.item_id || typeof value !== "string")
+      return ProviderShared.eventError(state.id, `${event.type} is malformed`)
    return Effect.succeed(
      event.type === "response.refusal.delta"
        ? onOutputTextDelta(state, event, event.item_id)
@@ -156,6 +156,9 @@ const OpenAIChatUsage = Schema.StructWithRest(
    prompt_tokens: optionalNull(Schema.Number),
    completion_tokens: optionalNull(Schema.Number),
    total_tokens: optionalNull(Schema.Number),
+    // Zai reports cache hits as top-level `cached_tokens`; DeepSeek uses `prompt_cache_hit_tokens`.
+    cached_tokens: optionalNull(Schema.Number),
+    prompt_cache_hit_tokens: optionalNull(Schema.Number),
    prompt_tokens_details: optionalNull(
      Schema.StructWithRest(
        Schema.Struct({
@@ -204,11 +207,16 @@ const OpenAIChatDelta = Schema.StructWithRest(
  [Schema.Record(Schema.String, Schema.Unknown)],
 )

-const OpenAIChatChoice = Schema.Struct({
-  delta: optionalNull(OpenAIChatDelta),
-  finish_reason: optionalNull(Schema.String),
-  native_finish_reason: optionalNull(Schema.String),
-})
+const OpenAIChatChoice = Schema.StructWithRest(
+  Schema.Struct({
+    delta: optionalNull(OpenAIChatDelta),
+    finish_reason: optionalNull(Schema.String),
+    native_finish_reason: optionalNull(Schema.String),
+    // Moonshot streams usage on `choice.usage` instead of top-level `usage`.
+    usage: optionalNull(OpenAIChatUsage),
+  }),
+  [Schema.Record(Schema.String, Schema.Unknown)],
+)

 const OpenAIChatError = Schema.Struct({
  code: optionalNull(Schema.Union([Schema.String, Schema.Number])),
@@ -261,7 +269,7 @@ const lowerTool = (tool: ToolDefinition, inputSchema: JsonSchema, options: Lower
  function: {
    name: tool.name,
    description: tool.description,
-    parameters: ToolSchemaProjection.openAI(inputSchema),
+    parameters: inputSchema,
  },
  cache_control: options.cacheControl?.(tool.cache),
 })
@@ -509,11 +517,23 @@ const lowerMessages = Effect.fn("OpenAIChat.lowerMessages")(function* (request:
  return messages
 })

+// Anthropic via LiteLLM and Amazon Bedrock require `tools` to be present
+// whenever the conversation history contains tool calls/results. Send an
+// explicit empty array when we have history but no active tools.
+const hasToolHistory = (messages: ReadonlyArray<LLMRequest["messages"][number]>) => {
+  for (const message of messages) {
+    if (message.role === "tool") return true
+    if (message.role === "assistant" && message.content.some((part) => part.type === "tool-call")) return true
+  }
+  return false
+}
+
 const lowerOptions = (request: LLMRequest) => {
  const options = OpenAIOptions.resolve(request)
+  const cacheKey = ProviderShared.clampPromptCacheKey(request.promptCacheKey)
  return {
    ...(options.store !== undefined ? { store: options.store } : {}),
-    ...(request.promptCacheKey ? { prompt_cache_key: request.promptCacheKey } : {}),
+    ...(cacheKey ? { prompt_cache_key: cacheKey } : {}),
    ...(options.reasoningEffort ? { reasoning_effort: options.reasoningEffort } : {}),
  }
 }
@@ -532,12 +552,15 @@ export const fromRequest = Effect.fn("OpenAIChat.fromRequest")(function* (
  const generation = request.generation
  const toolSchemaCompatibility = request.model.compatibility?.toolSchema
  const maxTokensField = request.model.compatibility?.maxTokensField ?? "max_tokens"
+  const hasHistory = hasToolHistory(request.messages)
  return {
    model: request.model.id,
    messages: yield* lowerMessages(request, options),
    tools:
      request.tools.length === 0
-        ? undefined
+        ? hasHistory
+          ? []
+          : undefined
        : request.tools.map((tool) =>
            lowerTool(
              tool,
@@ -581,11 +604,18 @@ const mapFinishReason = (reason: string | null | undefined): FinishReason => {
 // total) with a `reasoning_tokens` subset. We pass the inclusive totals
 // through and derive the non-cached breakdown so the `AI.Usage` contract is
 // satisfied on both sides.
+// Providers differ on cache-hit location: OpenAI uses
+// `prompt_tokens_details.cached_tokens`, DeepSeek uses
+// `prompt_cache_hit_tokens`, and Zai uses top-level `cached_tokens`.
 const mapUsage = (usage: OpenAIChatEvent["usage"]): Usage | undefined => {
  if (!usage) return undefined
  const input = usage.prompt_tokens ?? undefined
  const output = usage.completion_tokens ?? undefined
-  const cached = usage.prompt_tokens_details?.cached_tokens ?? undefined
+  const cached =
+    (usage.prompt_tokens_details?.cached_tokens ??
+      (usage as { prompt_cache_hit_tokens?: number | null }).prompt_cache_hit_tokens ??
+      (usage as { cached_tokens?: number | null }).cached_tokens ??
+      undefined) as number | undefined
  const cacheWrite = usage.prompt_tokens_details?.cache_write_tokens ?? undefined
  const reasoning = usage.completion_tokens_details?.reasoning_tokens ?? undefined
  const nonCached = ProviderShared.subtractTokens(input, ProviderShared.sumTokens(cached, cacheWrite))
@@ -691,8 +721,11 @@ const step = (state: ParserState, event: OpenAIChatEvent) =>
        }),
      })
    const events: LLMEvent[] = []
-    const usage = mapUsage(event.usage) ?? state.usage
    const choice = event.choices?.[0]
+    // Moonshot (and a few other OpenAI-compatible providers) attach usage to
+    // `choice.usage` instead of the top-level `usage` field.
+    const choiceUsage = (choice as unknown as { usage?: OpenAIChatEvent["usage"] })?.usage
+    const usage = mapUsage(event.usage) ?? (choiceUsage ? mapUsage(choiceUsage) : undefined) ?? state.usage
    const rawFinishReason = choice?.finish_reason
    const finishReason =
      rawFinishReason !== undefined && rawFinishReason !== null
@@ -134,13 +134,12 @@ const HOSTED_TOOLS = {
    name: "code_interpreter",
    input: (item) => ({ code: item.code, container_id: item.container_id }),
  },
-  computer_use_call: { name: "computer_use", input: (item) => item.action ?? {} },
+  computer_call: { name: "computer_use", input: (item) => item.action ?? {} },
  image_generation_call: { name: "image_generation", input: () => ({}), result: hostedToolResult },
  mcp_call: {
    name: "mcp",
    input: (item) => ({ server_label: item.server_label, name: item.name, arguments: item.arguments }),
  },
-  local_shell_call: { name: "local_shell", input: (item) => item.action ?? {} },
 } as const satisfies ResponsesHostedTools.Definitions

 const step = (state: OpenResponses.ParserState, event: OpenResponses.Event) => {
@@ -24,6 +24,17 @@ export const JsonObject = Schema.Record(Schema.String, Schema.Unknown)
 export const optionalArray = <const S extends Schema.Top>(schema: S) => Schema.optional(Schema.Array(schema))
 export const optionalNull = <const S extends Schema.Top>(schema: S) => Schema.optional(Schema.NullOr(schema))

+export const OPENAI_PROMPT_CACHE_KEY_MAX_LENGTH = 64
+
+// OpenAI limits `prompt_cache_key` to 64 chars; DeepSeek and Zai inherit the same
+// limit via their OpenAI-compatible APIs. Clamp with unicode-aware slicing.
+export const clampPromptCacheKey = (key: string | undefined): string | undefined => {
+  if (key === undefined) return undefined
+  const chars = Array.from(key)
+  if (chars.length <= OPENAI_PROMPT_CACHE_KEY_MAX_LENGTH) return key
+  return chars.slice(0, OPENAI_PROMPT_CACHE_KEY_MAX_LENGTH).join("")
+}
+
 /**
 * Streaming tool-call accumulator. Adapters that build a tool call across
 * multiple `tool-input-delta` chunks store the partial JSON input string here
@@ -28,7 +28,11 @@ export const ResponseIncludables = [
 export type ResponseIncludable = (typeof ResponseIncludables)[number] | (string & {})

 export const ServiceTiers = ["auto", "default", "flex", "priority"] as const
-export type ServiceTier = (typeof ServiceTiers)[number]
+export type ServiceTier = (typeof ServiceTiers)[number] | (string & {})
+export const ServiceTier = Schema.declare<ServiceTier>(
+  (value): value is ServiceTier => typeof value === "string",
+  { title: "ServiceTier" },
+)

 export const Truncations = ["auto", "disabled"] as const
 export type Truncation = (typeof Truncations)[number]
@@ -38,7 +42,7 @@ export const ResponseIncludableSchema = Schema.declare<ResponseIncludable>(
  (value): value is ResponseIncludable => typeof value === "string",
  { title: "ResponseIncludable" },
 )
-export const ServiceTierSchema = Schema.Literals(ServiceTiers)
+export const ServiceTierSchema = ServiceTier
 export const TruncationSchema = Schema.Literals(Truncations)

 export const AllowedTools = Schema.Struct({
@@ -9,8 +9,8 @@ export type OpenAITextVerbosity = OpenResponsesOptions.TextVerbosity
 // in lockstep with `openai-node/src/resources/responses/responses.ts`.
 export const OpenAIResponseIncludables = OpenResponsesOptions.ResponseIncludables
 export type OpenAIResponseIncludable = OpenResponsesOptions.ResponseIncludable
-export const OpenAIServiceTiers = OpenResponsesOptions.ServiceTiers
-export type OpenAIServiceTier = OpenResponsesOptions.ServiceTier
+export const OpenAIServiceTiers = [...OpenResponsesOptions.ServiceTiers, "scale"] as const
+export type OpenAIServiceTier = (typeof OpenAIServiceTiers)[number] | (string & {})

 export const OpenAIReasoningEffort = OpenResponsesOptions.ReasoningEffort
 export const OpenAITextVerbosity = OpenResponsesOptions.TextVerbosity
@@ -2,20 +2,6 @@ import type { JsonSchema, LanguageModelToolSchemaCompatibility } from "../../sch
 import { isRecord } from "../../utils/record.js"
 import { GeminiToolSchema } from "./gemini-tool-schema.js"

-const removeNullSchemas = (value: unknown): unknown => {
-  if (Array.isArray(value)) return value.map(removeNullSchemas)
-  if (!isRecord(value)) return value
-  const fields = Object.fromEntries(
-    Object.entries(value)
-      .filter(([key]) => key !== "anyOf")
-      .map(([key, field]) => [key, removeNullSchemas(field)]),
-  )
-  if (!Array.isArray(value.anyOf)) return fields
-  const variants = value.anyOf.filter((variant) => !isRecord(variant) || variant.type !== "null").map(removeNullSchemas)
-  if (variants.length === 1 && isRecord(variants[0])) return { ...fields, ...variants[0] }
-  return { ...fields, anyOf: variants }
-}
-
 const tupleItemsSchema = (items: ReadonlyArray<unknown>) => {
  const projected = items.map(moonshotNode)
  if (projected.length === 0) return {}
@@ -45,24 +31,7 @@ const moonshot = (schema: JsonSchema): JsonSchema => {
  return isRecord(projected) ? projected : {}
 }

-const openAI = (schema: JsonSchema): JsonSchema => {
-  const variants = Array.isArray(schema.anyOf) ? schema.anyOf.filter(isRecord) : []
-  const flattened =
-    variants.length === 0
-      ? { ...schema, type: "object" }
-      : {
-          ...Object.fromEntries(Object.entries(schema).filter(([key]) => key !== "anyOf")),
-          type: "object",
-          properties: variants.reduce(
-            (properties, variant) => ({ ...(isRecord(variant.properties) ? variant.properties : {}), ...properties }),
-            {},
-          ),
-          additionalProperties: false,
-        }
-  const normalized = removeNullSchemas(flattened)
-  return isRecord(normalized) ? normalized : { type: "object" }
-}
-
+const openAI = (schema: JsonSchema): JsonSchema => schema
 const responses = openAI

 const gemini = (schema: JsonSchema): JsonSchema => GeminiToolSchema.convert(schema) ?? {}
@@ -38,13 +38,23 @@ export type Settings = ProviderPackage.Settings &

 const fromRequest = Effect.fn("GoogleVertex.fromRequest")(function* (request: LLMRequest) {
  const body = yield* Gemini.protocol.body.from(request)
+  // Vertex's native REST schema rejects `id` on FunctionCall/FunctionResponse parts with HTTP 400,
+  // unlike AI Studio, so history minted there cannot be lowered verbatim.
+  const contents = body.contents.map((content) => ({
+    ...content,
+    parts: (content.parts ?? []).map((part) => {
+      if ("functionCall" in part) return { ...part, functionCall: { ...part.functionCall, id: undefined } }
+      if ("functionResponse" in part) return { ...part, functionResponse: { ...part.functionResponse, id: undefined } }
+      return part
+    }),
+  }))
  const value = request.providerOptions?.labels
  const labels = ProviderShared.isRecord(value)
    ? Object.fromEntries(
        Object.entries(value).filter((entry): entry is [string, string] => typeof entry[1] === "string"),
      )
    : undefined
-  return { ...body, labels }
+  return { ...body, contents, labels }
 })

 const protocol = {
@@ -1,9 +1,13 @@
 import { mergeProviderOptions, type ProviderOptions } from "../schema/index.js"
-import type { OpenResponsesOptionsInput } from "./open-responses-options.js"
+import type { OpenAIServiceTier } from "../protocols/utils/openai-options.js"
+import type { Options } from "../protocols/utils/open-responses-options.js"

 export type { OpenAIResponseIncludable, OpenAIServiceTier } from "../protocols/utils/openai-options.js"

-export type OpenAIOptionsInput = OpenResponsesOptionsInput
+export type OpenAIOptionsInput = Omit<Options, "serviceTier"> & {
+  readonly serviceTier?: OpenAIServiceTier
+  readonly [key: string]: unknown
+}

 export type OpenAIProviderOptionsInput = OpenAIOptionsInput

@@ -9,7 +9,7 @@ import type { ProviderPackage } from "../provider-package.js"
 import * as OpenAICompatibleProfiles from "./openai-compatible-profile.js"
 import * as OpenAIChat from "../protocols/openai-chat.js"
 import { newBreakpoints, ttlBucket } from "../protocols/utils/cache.js"
-import { isRecord } from "../protocols/shared.js"
+import { isRecord, ProviderShared } from "../protocols/shared.js"

 export const profile = OpenAICompatibleProfiles.profiles.openrouter
 export const id = ProviderID.make(profile.provider)
@@ -115,11 +115,12 @@ export const protocol = Protocol.make({
              reasoning_details: reasoningDetails,
            }
          })
+          const cacheKey = ProviderShared.clampPromptCacheKey(request.promptCacheKey)
          return {
            ...body,
            messages,
            ...bodyOptions(request.providerOptions),
-            ...(request.promptCacheKey ? { prompt_cache_key: request.promptCacheKey } : {}),
+            ...(cacheKey ? { prompt_cache_key: cacheKey } : {}),
          } as OpenRouterBody
        }),
      ),
@@ -0,0 +1,31 @@
+{
+  "version": 1,
+  "metadata": {
+    "tags": [
+      "prefix:azure",
+      "provider:azure"
+    ],
+    "name": "azure/chat-streams-text",
+    "recordedAt": "2026-08-23T17:21:53.198Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://aiden-azury-group.openai.azure.com/openai/v1/chat/completions?api-version=v1",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"model\":\"gpt-5.6-luna\",\"messages\":[{\"role\":\"user\",\"content\":\"Reply with exactly one word: hello\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"store\":false,\"reasoning_effort\":\"medium\"}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "text/event-stream; charset=utf-8"
+        },
+        "body": "data: {\"choices\":[],\"created\":0,\"id\":\"\",\"model\":\"\",\"object\":\"\",\"prompt_filter_results\":[{\"prompt_index\":0,\"content_filter_results\":{}}]}\n\ndata: {\"choices\":[{\"content_filter_results\":{},\"delta\":{\"content\":\"\",\"refusal\":null,\"role\":\"assistant\"},\"finish_reason\":null,\"index\":0,\"logprobs\":null}],\"created\":1787505712,\"id\":\"chatcmpl-EG6BEiYSfrcTSI2WX8PqNzERZDcPc\",\"model\":\"gpt-5.6-luna-2026-07-09\",\"obfuscation\":\"Mxr\",\"object\":\"chat.completion.chunk\",\"service_tier\":\"default\",\"system_fingerprint\":null,\"usage\":null}\n\ndata: {\"choices\":[{\"content_filter_results\":{},\"delta\":{\"content\":\"hello\"},\"finish_reason\":null,\"index\":0,\"logprobs\":null}],\"created\":1787505712,\"id\":\"chatcmpl-EG6BEiYSfrcTSI2WX8PqNzERZDcPc\",\"model\":\"gpt-5.6-luna-2026-07-09\",\"obfuscation\":\"\",\"object\":\"chat.completion.chunk\",\"service_tier\":\"default\",\"system_fingerprint\":null,\"usage\":null}\n\ndata: {\"choices\":[{\"content_filter_results\":{},\"delta\":{},\"finish_reason\":\"stop\",\"index\":0,\"logprobs\":null}],\"created\":1787505712,\"id\":\"chatcmpl-EG6BEiYSfrcTSI2WX8PqNzERZDcPc\",\"model\":\"gpt-5.6-luna-2026-07-09\",\"obfuscation\":\"WyZa5AY1CaCeFdS\",\"object\":\"chat.completion.chunk\",\"service_tier\":\"default\",\"system_fingerprint\":null,\"usage\":null}\n\ndata: {\"choices\":[],\"created\":1787505712,\"id\":\"chatcmpl-EG6BEiYSfrcTSI2WX8PqNzERZDcPc\",\"latency_checkpoint\":{\"engine_tbt_ms\":20,\"engine_ttft_ms\":106,\"engine_ttlt_ms\":206,\"pre_inference_ms\":89,\"service_tbt_ms\":20,\"service_ttft_ms\":480,\"service_ttlt_ms\":576,\"total_duration_ms\":491,\"user_visible_ttft_ms\":391},\"model\":\"gpt-5.6-luna-2026-07-09\",\"obfuscation\":\"6\",\"object\":\"chat.completion.chunk\",\"service_tier\":\"default\",\"system_fingerprint\":null,\"usage\":{\"completion_tokens\":5,\"completion_tokens_details\":{\"accepted_prediction_tokens\":0,\"audio_tokens\":0,\"reasoning_tokens\":0,\"rejected_prediction_tokens\":0},\"prompt_tokens\":13,\"prompt_tokens_details\":{\"audio_tokens\":0,\"cache_write_tokens\":0,\"cached_tokens\":0},\"total_tokens\":18}}\n\ndata: [DONE]\n\n"
+      }
+    }
+  ]
+}
@@ -0,0 +1,32 @@
+{
+  "version": 1,
+  "metadata": {
+    "tags": [
+      "prefix:google-vertex",
+      "provider:google-vertex",
+      "protocol:gemini"
+    ],
+    "name": "google-vertex/calls-a-tool",
+    "recordedAt": "2026-08-23T17:21:51.036Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://aiplatform.googleapis.com/v1/publishers/google/models/gemini-3.5-flash:streamGenerateContent?alt=sse",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"contents\":[{\"role\":\"user\",\"parts\":[{\"text\":\"What is the weather in Paris? Use the lookup_weather tool.\"}]}],\"tools\":[{\"functionDeclarations\":[{\"name\":\"lookup_weather\",\"description\":\"Look up the current weather for a city\",\"parameters\":{\"required\":[\"city\"],\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\"}}}}]}]}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "text/event-stream"
+        },
+        "body": "data: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"functionCall\": {\"name\": \"lookup_weather\",\"args\": {\"city\": \"Paris\"},\"id\": \"call_425130\"},\"thoughtSignature\": \"AY89a1+1fXnLgYhHMuN3Ak6LBhT6PcrYOW7iPav4LfsacvG/Z6l1yJ+AsU7vWhFj/JyPIbsJJQ+GjohM9sCIZ6nqUOIg3reo/7osmrCvFrVHedTHQcwiPzoz2Kp3gb+uWjFAXxk1EX4IRAKcu0ox1W/Z9PpuZvHkTerGO2a82e02N6MAF1YhhtbXFvSdqLRih2Os68rdOk5/Bcld7ol8qUgeyIZ3CtI3OJ5jwRcD8LjvK33A7ZFzH5Bxp/peUmXvqnu5iNhnGBxZaJy/vupCtxRZxjaS+ojG0/UhyrnRiKIpbzQ0FBkxePPn8GCX/LOe2y3GUc98co8lN8OOuCd9ZmEdx5AjHmQkPO9fAV9SxG6Bda6SDWVL8o/Uz3WSQYoUEfAdoajEWIBvcisoeCJjb7zgmRRZ9VQSPl3RXj5LFRvX8jn0YKV1CahYbc24jA==\"}]}}],\"usageMetadata\": {\"trafficType\": \"ON_DEMAND\"},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:50.308576Z\",\"responseId\": \"LiyLauDqErCErb8Pj8aWkAs\"}\r\n\r\ndata: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"\"}]},\"finishReason\": \"STOP\"}],\"usageMetadata\": {\"promptTokenCount\": 39,\"candidatesTokenCount\": 16,\"totalTokenCount\": 102,\"trafficType\": \"ON_DEMAND\",\"promptTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 39}],\"candidatesTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 16}],\"thoughtsTokenCount\": 47},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:50.308576Z\",\"responseId\": \"LiyLauDqErCErb8Pj8aWkAs\"}\r\n\r\n"
+      }
+    }
+  ]
+}
@@ -0,0 +1,32 @@
+{
+  "version": 1,
+  "metadata": {
+    "tags": [
+      "prefix:google-vertex",
+      "provider:google-vertex",
+      "protocol:gemini"
+    ],
+    "name": "google-vertex/continues-after-a-tool-result",
+    "recordedAt": "2026-08-23T17:21:51.853Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://aiplatform.googleapis.com/v1/publishers/google/models/gemini-3.5-flash:streamGenerateContent?alt=sse",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"contents\":[{\"role\":\"user\",\"parts\":[{\"text\":\"What is the weather in Paris?\"}]},{\"role\":\"model\",\"parts\":[{\"functionCall\":{\"name\":\"lookup_weather\",\"args\":{\"city\":\"Paris\"}},\"thoughtSignature\":\"skip_thought_signature_validator\"}]},{\"role\":\"user\",\"parts\":[{\"functionResponse\":{\"name\":\"lookup_weather\",\"response\":{\"name\":\"lookup_weather\",\"content\":\"18C, light rain\"}}}]}],\"tools\":[{\"functionDeclarations\":[{\"name\":\"lookup_weather\",\"description\":\"Look up the current weather for a city\",\"parameters\":{\"required\":[\"city\"],\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\"}}}}]}]}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "text/event-stream"
+        },
+        "body": "data: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"The weather in Paris is currently 18°C with light rain.\"}]}}],\"usageMetadata\": {\"trafficType\": \"ON_DEMAND\"},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:51.220919Z\",\"responseId\": \"LyyLave9DbWnrb8P1IjLmQQ\"}\r\n\r\ndata: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"\",\"thoughtSignature\": \"AY89a197c+fpHJftPtcufnqMAyoRQKVEQK+KeG+RVHVx2wKil3L4jP4YWvfVbcuOFr2jio4Kre/hCrDANAoMFSvaZrdaPeo1b5bXQSmJKMH03yM5M6q6ME6JiBvXym143U4exIde4UbOh2tMeyXMvB3aWxcavIHd78g5G5QPLreo6A3LO5871cYYVeRwteY+/zbEdqfaAq1hlk6WYpWkNljYpjMyKwr15YC8rFLh3HYayS9tTN++GGrk/reZn6C3OEPlzPou/pXRATzcEAGVl/TW\"}]},\"finishReason\": \"STOP\"}],\"usageMetadata\": {\"promptTokenCount\": 59,\"candidatesTokenCount\": 15,\"totalTokenCount\": 98,\"trafficType\": \"ON_DEMAND\",\"promptTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 59}],\"candidatesTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 15}],\"thoughtsTokenCount\": 24},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:51.220919Z\",\"responseId\": \"LyyLave9DbWnrb8P1IjLmQQ\"}\r\n\r\n"
+      }
+    }
+  ]
+}
@@ -0,0 +1,32 @@
+{
+  "version": 1,
+  "metadata": {
+    "tags": [
+      "prefix:google-vertex",
+      "provider:google-vertex",
+      "protocol:gemini"
+    ],
+    "name": "google-vertex/streams-text",
+    "recordedAt": "2026-08-23T17:21:50.112Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://aiplatform.googleapis.com/v1/publishers/google/models/gemini-3.5-flash:streamGenerateContent?alt=sse",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"contents\":[{\"role\":\"user\",\"parts\":[{\"text\":\"Reply with exactly one word: hello\"}]}]}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "text/event-stream"
+        },
+        "body": "data: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"Hello\"}]}}],\"usageMetadata\": {\"trafficType\": \"ON_DEMAND\"},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:48.528714Z\",\"responseId\": \"LCyLasqiIO6crb8P1sDboQc\"}\r\n\r\ndata: {\"candidates\": [{\"content\": {\"role\": \"model\",\"parts\": [{\"text\": \"\",\"thoughtSignature\": \"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\"}]},\"finishReason\": \"STOP\"}],\"usageMetadata\": {\"promptTokenCount\": 7,\"candidatesTokenCount\": 1,\"totalTokenCount\": 150,\"trafficType\": \"ON_DEMAND\",\"promptTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 7}],\"candidatesTokensDetails\": [{\"modality\": \"TEXT\",\"tokenCount\": 1}],\"thoughtsTokenCount\": 142},\"modelVersion\": \"gemini-3.5-flash\",\"createTime\": \"2026-08-23T17:21:48.528714Z\",\"responseId\": \"LCyLasqiIO6crb8P1sDboQc\"}\r\n\r\n"
+      }
+    }
+  ]
+}
@@ -4,10 +4,4 @@ import { GoogleVertexChat } from "../../src/providers.js"
 const model = GoogleVertexChat.configure({ accessToken: "test", project: "project" }).model("gemini")

 LLM.request({ model, prompt: "Hello", providerOptions: { serviceTier: "priority" } })
-
-LLM.request({
-  model,
-  prompt: "Hello",
-  // @ts-expect-error Vertex OpenAI-compatible service tiers use the OpenAI union.
-  providerOptions: { serviceTier: "premium" },
-})
+LLM.request({ model, prompt: "Hello", providerOptions: { serviceTier: "future-tier" } })
@@ -8,6 +8,8 @@ LLM.request({ model: selected, prompt: "Hello", providerOptions: { reasoningEffo
 LLM.request({ model: selected, prompt: "Hello", providerOptions: { reasoningEffort: "experimental" } })
 LLM.request({ model: selected, prompt: "Hello", providerOptions: { textVerbosity: "low" } })
 LLM.request({ model: selected, prompt: "Hello", providerOptions: { textVerbosity: "verbose" } })
+LLM.request({ model: selected, prompt: "Hello", providerOptions: { serviceTier: "scale" } })
+LLM.request({ model: selected, prompt: "Hello", providerOptions: { serviceTier: "future-tier" } })
 LLM.request({ model: chat, prompt: "Hello", providerOptions: { reasoningEffort: "max" } })
 LLM.request({ model: chat, prompt: "Hello", providerOptions: { reasoningEffort: "experimental" } })

@@ -0,0 +1,93 @@
+import { describe, expect } from "bun:test"
+import { Effect } from "effect"
+import { LLM, Message, ToolDefinition, ToolCallPart } from "../../src/index.js"
+import { Azure } from "../../src/providers.js"
+import { LLMClient } from "../../src/route.js"
+import { recordedTests } from "../recorded-test.js"
+
+const resourceName = process.env.AZURE_OPENAI_RESOURCE_NAME ?? "aiden-azury-group"
+
+const chatModel = Azure.configure({
+  resourceName,
+  apiKey: process.env.AZURE_OPENAI_API_KEY ?? "fixture",
+}).chat("gpt-5.6-luna")
+
+const responsesModel = Azure.configure({
+  resourceName,
+  apiKey: process.env.AZURE_OPENAI_API_KEY ?? "fixture",
+}).responses("gpt-5.6-luna")
+
+const lookupWeather = ToolDefinition.make({
+  name: "lookup_weather",
+  description: "Look up the current weather for a city",
+  inputSchema: { type: "object", properties: { city: { type: "string" } }, required: ["city"] },
+})
+
+const recorded = recordedTests({
+  prefix: "azure",
+  provider: "azure",
+  requires: ["AZURE_OPENAI_API_KEY"],
+})
+
+describe("Azure OpenAI recorded", () => {
+  recorded.effect("chat streams text", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({ model: chatModel, prompt: "Reply with exactly one word: hello" }),
+      )
+
+      expect(response.text.toLowerCase()).toContain("hello")
+    }),
+  )
+
+  recorded.effect("responses streams text", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({ model: responsesModel, prompt: "Reply with exactly one word: bonjour" }),
+      )
+
+      expect(response.text.toLowerCase()).toContain("bonjour")
+    }),
+  )
+
+  recorded.effect("responses calls a tool", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          model: responsesModel,
+          prompt: "What is the weather in Paris? Use the lookup_weather tool.",
+          tools: [lookupWeather],
+        }),
+      )
+
+      const call = response.toolCalls.find((part) => part.name === "lookup_weather")
+      expect(call).toBeDefined()
+      expect(call?.input).toMatchObject({ city: "Paris" })
+    }),
+  )
+
+  recorded.effect("responses continues after a tool result", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          model: responsesModel,
+          messages: [
+            Message.user("What is the weather in Paris?"),
+            Message.assistant([
+              ToolCallPart.make({ id: "call_paris_1", name: "lookup_weather", input: { city: "Paris" } }),
+            ]),
+            Message.tool({
+              id: "call_paris_1",
+              name: "lookup_weather",
+              result: "18C, light rain",
+              resultType: "text",
+            }),
+          ],
+          tools: [lookupWeather],
+        }),
+      )
+
+      expect(response.text.length).toBeGreaterThan(0)
+    }),
+  )
+})
@@ -156,14 +156,13 @@ describe("Gemini route", () => {
      expect(prepared.body.contents).toEqual([
        {
          role: "model",
-          parts: [{ functionCall: { id: undefined, name: "lookup", args: { query: "weather" } } }],
+          parts: [{ functionCall: { name: "lookup", args: { query: "weather" } } }],
        },
        {
          role: "user",
          parts: [
            {
              functionResponse: {
-                id: undefined,
                name: "lookup",
                response: { name: "lookup", content: "done" },
              },
@@ -201,8 +200,8 @@ describe("Gemini route", () => {
        {
          role: "model",
          parts: [
-            { functionCall: { id: undefined, name: "lookup", args: { query: "weather" } } },
-            { functionCall: { id: undefined, name: "lookup", args: { query: "time" } } },
+            { functionCall: { name: "lookup", args: { query: "weather" } } },
+            { functionCall: { name: "lookup", args: { query: "time" } } },
          ],
        },
        {
@@ -210,14 +209,12 @@ describe("Gemini route", () => {
          parts: [
            {
              functionResponse: {
-                id: undefined,
                name: "lookup",
                response: { name: "lookup", content: "sunny" },
              },
            },
            {
              functionResponse: {
-                id: undefined,
                name: "lookup",
                response: { name: "lookup", content: "noon" },
              },
@@ -228,6 +225,104 @@ describe("Gemini route", () => {
    }),
  )

+  it.effect("lowers function call ids for gemini 3 models", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: gemini3,
+          messages: [
+            Message.assistant([ToolCallPart.make({ id: "call_1", name: "lookup", input: { query: "weather" } })]),
+            Message.tool({ id: "call_1", name: "lookup", result: "done", resultType: "text" }),
+          ],
+        }),
+      )
+
+      expect(prepared.body.contents).toEqual([
+        {
+          role: "model",
+          parts: [
+            {
+              functionCall: { id: "call_1", name: "lookup", args: { query: "weather" } },
+              thoughtSignature: "skip_thought_signature_validator",
+            },
+          ],
+        },
+        {
+          role: "user",
+          parts: [
+            {
+              functionResponse: {
+                id: "call_1",
+                name: "lookup",
+                response: { name: "lookup", content: "done" },
+              },
+            },
+          ],
+        },
+      ])
+    }),
+  )
+
+  it.effect("omits function call ids entirely for pre-gemini-3 models", () =>
+    Effect.gen(function* () {
+      const messages = [
+        Message.assistant([ToolCallPart.make({ id: "call_1", name: "lookup", input: { query: "weather" } })]),
+        Message.tool({ id: "call_1", name: "lookup", result: "done", resultType: "text" }),
+      ]
+      const legacy = yield* compileRequest(LLM.request({ model, messages }))
+      const older = yield* compileRequest(
+        LLM.request({
+          model: Gemini.route
+            .with({
+              endpoint: { baseURL: "https://generativelanguage.test/v1beta/" },
+              auth: Auth.header("x-goog-api-key", "test"),
+            })
+            .model({ id: "gemini-1.5-flash" }),
+          messages,
+        }),
+      )
+
+      expect(legacy.body.contents).toEqual([
+        { role: "model", parts: [{ functionCall: { name: "lookup", args: { query: "weather" } } }] },
+        {
+          role: "user",
+          parts: [{ functionResponse: { name: "lookup", response: { name: "lookup", content: "done" } } }],
+        },
+      ])
+      expect(JSON.stringify(legacy.body.contents)).not.toContain('"id"')
+      expect(JSON.stringify(older.body.contents)).not.toContain('"id"')
+    }),
+  )
+
+  it.effect("includes function call ids for non-gemini model ids", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: Gemini.route
+            .with({
+              endpoint: { baseURL: "https://generativelanguage.test/v1beta/" },
+              auth: Auth.header("x-goog-api-key", "test"),
+            })
+            .model({ id: "gemma-3-27b-it" }),
+          messages: [
+            Message.assistant([ToolCallPart.make({ id: "call_1", name: "lookup", input: { query: "weather" } })]),
+            Message.tool({ id: "call_1", name: "lookup", result: "done", resultType: "text" }),
+          ],
+        }),
+      )
+
+      expect(prepared.body.contents).toEqual([
+        { role: "model", parts: [{ functionCall: { id: "call_1", name: "lookup", args: { query: "weather" } } }] },
+        {
+          role: "user",
+          parts: [
+            { functionResponse: { id: "call_1", name: "lookup", response: { name: "lookup", content: "done" } } },
+          ],
+        },
+      ])
+    }),
+  )
+
  it.effect("prepares multimodal user input and tool history", () =>
    Effect.gen(function* () {
      const prepared = yield* compileRequest(
@@ -419,13 +514,16 @@ describe("Gemini route", () => {
      expect(prepared.body.contents).toEqual([
        {
          role: "model",
-          parts: [{ functionCall: { name: "read", args: { path: "pixel.png" } }, thoughtSignature: "sig_1" }],
+          parts: [
+            { functionCall: { id: "call_image", name: "read", args: { path: "pixel.png" } }, thoughtSignature: "sig_1" },
+          ],
        },
        {
          role: "user",
          parts: [
            {
              functionResponse: {
+                id: "call_image",
                name: "read",
                response: { name: "read", content: "Image read successfully" },
                parts: [{ inlineData: { mimeType: "image/png", data: "AAECAw==" } }],
@@ -849,7 +947,7 @@ describe("Gemini route", () => {
      })
      expect(toolCall).toMatchObject({
        id: "provider_call",
-        providerMetadata: { google: { functionCallId: "provider_call", thoughtSignature: "tool_sig" } },
+        providerMetadata: { google: { thoughtSignature: "tool_sig" } },
      })
      expect(response.events.findIndex((event) => event.type === "reasoning-end")).toBeLessThan(
        response.events.findIndex((event) => event.type === "tool-call"),
@@ -857,7 +955,7 @@ describe("Gemini route", () => {

      const prepared = yield* compileRequest(
        LLM.request({
-          model,
+          model: gemini3,
          messages: [
            Message.assistant([
              { type: "reasoning", text: "thinking", providerMetadata: reasoningEnd?.providerMetadata },
@@ -873,7 +971,6 @@ describe("Gemini route", () => {
              name: "lookup",
              result: "done",
              resultType: "text",
-              providerMetadata: toolCall?.providerMetadata,
            }),
          ],
        }),
@@ -977,7 +1074,7 @@ describe("Gemini route", () => {
          role: "model",
          parts: [
            {
-              functionCall: { id: undefined, name: "lookup", args: { query: "weather" } },
+              functionCall: { id: "tool_0", name: "lookup", args: { query: "weather" } },
              thoughtSignature: "skip_thought_signature_validator",
            },
          ],
@@ -987,7 +1084,7 @@ describe("Gemini route", () => {
          parts: [
            {
              functionResponse: {
-                id: undefined,
+                id: "tool_0",
                name: "lookup",
                response: { name: "lookup", content: "done" },
              },
@@ -1023,15 +1120,15 @@ describe("Gemini route", () => {
          role: "model",
          parts: [
            {
-              functionCall: { id: undefined, name: "lookup", args: { query: "weather" } },
+              functionCall: { id: "tool_0", name: "lookup", args: { query: "weather" } },
              thoughtSignature: "parallel_signature",
            },
            {
-              functionCall: { id: undefined, name: "lookup", args: { query: "news" } },
+              functionCall: { id: "tool_1", name: "lookup", args: { query: "news" } },
              thoughtSignature: undefined,
            },
            {
-              functionCall: { id: undefined, name: "lookup", args: { query: "sports" } },
+              functionCall: { id: "tool_2", name: "lookup", args: { query: "sports" } },
              thoughtSignature: undefined,
            },
          ],
@@ -1059,11 +1156,11 @@ describe("Gemini route", () => {
          role: "model",
          parts: [
            {
-              functionCall: { id: undefined, name: "lookup", args: { query: "weather" } },
+              functionCall: { id: "tool_0", name: "lookup", args: { query: "weather" } },
              thoughtSignature: "skip_thought_signature_validator",
            },
            {
-              functionCall: { id: undefined, name: "lookup", args: { query: "news" } },
+              functionCall: { id: "tool_1", name: "lookup", args: { query: "news" } },
              thoughtSignature: "skip_thought_signature_validator",
            },
          ],
@@ -1214,7 +1311,6 @@ describe("Gemini route", () => {
        id: "call_0",
        name: "lookup",
        input: { query: "weather" },
-        providerMetadata: { google: { functionCallId: "call_0" } },
      })
      expect(response.toolCalls[1]).toMatchObject({
        type: "tool-call",
@@ -1230,6 +1326,37 @@ describe("Gemini route", () => {
    }),
  )

+  it.effect("replaces repeated supplier ids with fresh fallback ids", () =>
+    Effect.gen(function* () {
+      const body = sseEvents({
+        candidates: [
+          {
+            content: {
+              role: "model",
+              parts: [
+                { functionCall: { id: "dup_call", name: "lookup", args: { query: "weather" } } },
+                { functionCall: { id: "dup_call", name: "lookup", args: { query: "news" } } },
+              ],
+            },
+            finishReason: "STOP",
+          },
+        ],
+      })
+      const response = yield* LLMClient.generate(
+        LLMRequest.update(request, {
+          tools: [ToolDefinition.make({ name: "lookup", description: "Lookup data", inputSchema: { type: "object" } })],
+        }),
+      ).pipe(Effect.provide(fixedResponse(body)))
+
+      expect(response.toolCalls[0]).toMatchObject({
+        id: "dup_call",
+        providerMetadata: undefined,
+      })
+      expect(response.toolCalls[1].id).toMatch(/^tool_[0-9a-zA-Z]+$/)
+      expect(response.toolCalls[1].id).not.toBe(response.toolCalls[0].id)
+    }),
+  )
+
  it.effect("assigns distinct unique fallback ids across separate requests", () =>
    Effect.gen(function* () {
      const body = sseEvents({
@@ -1365,6 +1492,73 @@ describe("Gemini route", () => {
    }),
  )

+  it.effect("survives explicit null usage counts", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(request).pipe(
+        Effect.provide(
+          fixedResponse(
+            sseEvents(
+              { candidates: [{ content: { role: "model", parts: [{ text: "Hi" }] } }] },
+              { usageMetadata: { promptTokenCount: null, candidatesTokenCount: 5 } },
+            ),
+          ),
+        ),
+      )
+
+      expect(response.text).toBe("Hi")
+      expect(response.usage).toMatchObject({ outputTokens: 5, totalTokens: 5 })
+      expect(response.usage?.inputTokens).toBeUndefined()
+      expect(response.usage?.nonCachedInputTokens).toBeUndefined()
+      expect(response.usage?.cacheReadInputTokens).toBeUndefined()
+      expect(response.usage?.reasoningTokens).toBeUndefined()
+    }),
+  )
+
+  it.effect("survives null candidates, content, parts, and finish reason", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(request).pipe(
+        Effect.provide(
+          fixedResponse(
+            sseEvents(
+              { candidates: null },
+              { candidates: [{ content: { role: "model", parts: null } }] },
+              { candidates: [{ content: null, finishReason: null }] },
+              {
+                candidates: [
+                  { content: { role: "model", parts: [{ text: "Hello" }] }, finishReason: "STOP" as const },
+                ],
+              },
+            ),
+          ),
+        ),
+      )
+
+      expect(response.text).toBe("Hello")
+      expect(response.finishReason).toEqual({ normalized: "stop", raw: "STOP" })
+    }),
+  )
+
+  it.effect("treats a null thought flag on a text part as visible output", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(request).pipe(
+        Effect.provide(
+          fixedResponse(
+            sseEvents({
+              candidates: [
+                { content: { role: "model", parts: [{ text: "Visible", thought: null }] }, finishReason: "STOP" },
+              ],
+            }),
+          ),
+        ),
+      )
+      const reasoningStart = response.events.find((event) => event.type === "reasoning-start")
+
+      expect(reasoningStart).toBeUndefined()
+      expect(response.reasoning ?? "").toBe("")
+      expect(response.text).toBe("Visible")
+    }),
+  )
+
  it.effect("fails invalid stream events", () =>
    Effect.gen(function* () {
      const error = yield* LLMClient.generate(request).pipe(
@@ -0,0 +1,77 @@
+import { describe, expect } from "bun:test"
+import { Effect } from "effect"
+
+import { LLM, Message, ToolDefinition, ToolCallPart } from "../../src/index.js"
+import { GoogleVertex } from "../../src/providers.js"
+import { LLMClient } from "../../src/route.js"
+import { recordedTests } from "../recorded-test.js"
+
+const model = GoogleVertex.configure({
+  apiKey: process.env.GOOGLE_VERTEX_API_KEY ?? "fixture",
+}).model("gemini-3.5-flash")
+
+const lookupWeather = ToolDefinition.make({
+  name: "lookup_weather",
+  description: "Look up the current weather for a city",
+  inputSchema: { type: "object", properties: { city: { type: "string" } }, required: ["city"] },
+})
+
+const recorded = recordedTests({
+  prefix: "google-vertex",
+  provider: "google-vertex",
+  protocol: "gemini",
+  requires: ["GOOGLE_VERTEX_API_KEY"],
+})
+
+describe("Google Vertex Gemini recorded", () => {
+  recorded.effect("streams text", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({ model, prompt: "Reply with exactly one word: hello" }),
+      )
+
+      expect(response.text.toLowerCase()).toContain("hello")
+    }),
+  )
+
+  recorded.effect("calls a tool", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          model,
+          prompt: "What is the weather in Paris? Use the lookup_weather tool.",
+          tools: [lookupWeather],
+        }),
+      )
+
+      const call = response.toolCalls.find((part) => part.name === "lookup_weather")
+      expect(call).toBeDefined()
+      expect(call?.input).toMatchObject({ city: "Paris" })
+    }),
+  )
+
+  recorded.effect("continues after a tool result", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          model,
+          messages: [
+            Message.user("What is the weather in Paris?"),
+            Message.assistant([
+              ToolCallPart.make({ id: "call_paris_1", name: "lookup_weather", input: { city: "Paris" } }),
+            ]),
+            Message.tool({
+              id: "call_paris_1",
+              name: "lookup_weather",
+              result: "18C, light rain",
+              resultType: "text",
+            }),
+          ],
+          tools: [lookupWeather],
+        }),
+      )
+
+      expect(response.text.length).toBeGreaterThan(0)
+    }),
+  )
+})
@@ -1,7 +1,7 @@
 import { describe, expect } from "bun:test"
 import { Effect } from "effect"
 import { HttpClientRequest } from "effect/unstable/http"
-import { LLM } from "../../src/index.js"
+import { LLM, Message, ToolCallPart } from "../../src/index.js"
 import { GoogleVertex, GoogleVertexChat, GoogleVertexMessages, GoogleVertexResponses } from "../../src/providers.js"
 import { LLMClient } from "../../src/route.js"
 import { compileRequest } from "../../src/route/client.js"
@@ -75,6 +75,53 @@ describe("Google Vertex providers", () => {
    }),
  )

+  it.effect("strips function call ids Vertex does not accept from lowered bodies", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: GoogleVertex.configure({
+            accessToken: "vertex-token",
+            project: "vertex-project",
+          }).model("gemini-3.5-flash"),
+          messages: [
+            Message.assistant([
+              ToolCallPart.make({
+                id: "call_1",
+                name: "lookup",
+                input: { query: "weather" },
+                providerMetadata: { google: { functionCallId: "provider_call_1" } },
+              }),
+            ]),
+            Message.tool({
+              id: "call_1",
+              name: "lookup",
+              result: "sunny",
+              resultType: "text",
+              providerMetadata: { google: { functionCallId: "provider_call_1" } },
+            }),
+          ],
+        }),
+      )
+
+      expect(JSON.stringify(prepared.body.contents)).not.toContain('"id"')
+      expect(prepared.body.contents).toMatchObject([
+        { role: "model", parts: [{ functionCall: { id: undefined, name: "lookup", args: { query: "weather" } } }] },
+        {
+          role: "user",
+          parts: [
+            {
+              functionResponse: {
+                id: undefined,
+                name: "lookup",
+                response: { name: "lookup", content: "sunny" },
+              },
+            },
+          ],
+        },
+      ])
+    }),
+  )
+
  it.effect("projects Anthropic Messages onto the Vertex raw-predict API", () =>
    Effect.gen(function* () {
      const model = GoogleVertexMessages.configure({
@@ -342,6 +342,7 @@ describe("OpenAI Chat route", () => {
          },
          { role: "tool", tool_call_id: "call_1", content: encodeJson({ forecast: "sunny" }) },
        ],
+        tools: [],
        stream: true,
        stream_options: { include_usage: true },
      })
@@ -78,6 +78,45 @@ describe("Open Responses-compatible route", () => {
    }),
  )

+  it.effect("uses data URLs for embedded PDF messages and tool results", () =>
+    Effect.gen(function* () {
+      const model = configure({
+        apiKey: "test-key",
+        baseURL: "https://responses.example.test/v1",
+        provider: "example",
+      }).model("example-model")
+      const pdf = "data:application/pdf;base64,JVBERi0xLjQ="
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model,
+          messages: [
+            Message.user([{ type: "media", mediaType: "application/pdf", data: pdf, filename: "input.pdf" }]),
+            Message.assistant({ type: "tool-call", id: "call_1", name: "read", input: {} }),
+            Message.tool({
+              id: "call_1",
+              name: "read",
+              resultType: "content",
+              result: [{ type: "file", uri: pdf, mime: "application/pdf", name: "result.pdf" }],
+            }),
+          ],
+        }),
+      )
+
+      expect(prepared.body.input).toEqual([
+        {
+          role: "user",
+          content: [{ type: "input_file", filename: "input.pdf", file_data: pdf }],
+        },
+        { type: "function_call", call_id: "call_1", name: "read", arguments: "{}" },
+        {
+          type: "function_call_output",
+          call_id: "call_1",
+          output: [{ type: "input_file", filename: "result.pdf", file_data: pdf }],
+        },
+      ])
+    }),
+  )
+
  it.effect("rejects OpenAI-native tools", () =>
    Effect.gen(function* () {
      const model = configure({
@@ -114,7 +153,12 @@ describe("Open Responses-compatible route", () => {

      expect(prepared.body).toMatchObject({
        input: [
-          { type: "message", role: "assistant", content: [{ type: "output_text", text: "Unclassified." }], phase: null },
+          {
+            type: "message",
+            role: "assistant",
+            content: [{ type: "output_text", text: "Unclassified." }],
+            phase: null,
+          },
        ],
      })
    }),
@@ -189,6 +233,7 @@ describe("Open Responses-compatible route", () => {
          streamOptions: { includeObfuscation: false },
          topLogprobs: 3,
          truncation: "auto",
+          serviceTier: "provider-tier",
          allowedTools: { toolNames: ["lookup"] },
          maxToolCalls: 2,
          parallelToolCalls: false,
@@ -213,6 +258,7 @@ describe("Open Responses-compatible route", () => {
        presence_penalty: 0.2,
        frequency_penalty: -0.1,
        truncation: "auto",
+        service_tier: "provider-tier",
        tool_choice: {
          type: "allowed_tools",
          mode: "auto",
@@ -188,17 +188,15 @@ describe("OpenAI Responses route", () => {
    }),
  )

-  it.effect("omits unsupported semantic service tiers", () =>
+  it.effect("passes through provider-defined service tiers", () =>
    Effect.gen(function* () {
-      const prepared = yield* compileRequest(
-        LLMRequest.update(request, { providerOptions: { serviceTier: "unsupported" } }),
-      )
+      const prepared = yield* compileRequest(LLMRequest.update(request, { providerOptions: { serviceTier: "scale" } }))

-      expect(prepared.body).not.toHaveProperty("service_tier")
+      expect(prepared.body.service_tier).toBe("scale")
    }),
  )

-  it.effect("flattens top-level object unions in function schemas", () =>
+  it.effect("preserves function schemas", () =>
    Effect.gen(function* () {
      const prepared = yield* compileRequest(
        LLMRequest.update(request, {
@@ -238,13 +236,22 @@ describe("OpenAI Responses route", () => {
          strict: false,
          parameters: {
            type: "object",
-            properties: {
-              path: { type: "string" },
-              reference: { type: "string" },
-              limit: { type: "integer", maximum: 2000 },
-              resource: { type: "string" },
-            },
-            additionalProperties: false,
+            anyOf: [
+              {
+                type: "object",
+                properties: {
+                  path: { type: "string" },
+                  reference: { anyOf: [{ type: "string" }, { type: "null" }] },
+                  limit: { type: "integer", maximum: 2000 },
+                },
+                required: ["path"],
+              },
+              {
+                type: "object",
+                properties: { resource: { type: "string" }, limit: { type: "integer", maximum: 51200 } },
+                required: ["resource"],
+              },
+            ],
          },
        },
      ])
@@ -394,6 +401,38 @@ describe("OpenAI Responses route", () => {
    }),
  )

+  it.effect("tolerates keepalive frames before response.created", () =>
+    Effect.gen(function* () {
+      const webSocket = WebSocketTransport.makeDirect({
+        open: () =>
+          Effect.succeed({
+            sendText: () => Effect.void,
+            messages: Stream.fromArray([
+              ProviderShared.encodeJson({ type: "keepalive", sequence_number: 0 }),
+              ProviderShared.encodeJson({ type: "response.created", response: { id: "resp_alive" } }),
+              ProviderShared.encodeJson({
+                type: "response.completed",
+                response: { id: "resp_alive", usage: { input_tokens: 1, output_tokens: 1 } },
+              }),
+            ]),
+            close: Effect.void,
+          }),
+      })
+      const deps = Layer.succeed(
+        RequestExecutor.Service,
+        RequestExecutor.Service.of({ execute: () => Effect.die("unexpected HTTP request") }),
+      )
+      const model = OpenAI.configure({ baseURL: "https://api.openai.test/v1/", apiKey: "test" }).responses(
+        "gpt-4.1-mini",
+      )
+
+      const response = yield* LLMClient.generate(LLM.request({ model, prompt: "hi" }), { webSocket }).pipe(
+        Effect.provide(LLMClient.layer.pipe(Layer.provide(deps))),
+      )
+      expect(response.finishReason?.normalized).toBe("stop")
+    }),
+  )
+
  it.effect("continues a tool call with only the new tool output", () =>
    Effect.gen(function* () {
      const firstRequest = {
@@ -1273,7 +1312,7 @@ describe("OpenAI Responses route", () => {
        {
          type: "input_file",
          filename: "report.pdf",
-          file_data: "JVBERi0xLjQ=",
+          file_data: "data:application/pdf;base64,JVBERi0xLjQ=",
        },
      ])
    }),
@@ -1300,7 +1339,7 @@ describe("OpenAI Responses route", () => {
      )

      expect(expectToolOutput(prepared.body).output).toEqual([
-        { type: "input_file", filename: "report.pdf", file_data: base64 },
+        { type: "input_file", filename: "report.pdf", file_data: dataUrl },
      ])
    }),
  )
@@ -1333,7 +1372,7 @@ describe("OpenAI Responses route", () => {
        {
          type: "input_file",
          filename: "report.pdf",
-          file_data: "JVBERi0xLjQ=",
+          file_data: "data:application/pdf;base64,JVBERi0xLjQ=",
        },
      ])
    }),
@@ -1358,7 +1397,7 @@ describe("OpenAI Responses route", () => {
      )

      expect(expectToolOutput(prepared.body).output).toEqual([
-        { type: "input_file", filename: "file", file_data: "AAECAw==" },
+        { type: "input_file", filename: "file", file_data: "data:audio/mpeg;base64,AAECAw==" },
      ])
    }),
  )
@@ -2272,6 +2311,44 @@ describe("OpenAI Responses route", () => {
    }),
  )

+  it.effect("continues stateless hosted tool results with their text form", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model,
+          messages: [
+            Message.user("Search."),
+            Message.assistant([
+              ToolCallPart.make({
+                id: "ws_1",
+                name: "web_search",
+                input: { query: "effect 4" },
+                providerExecuted: true,
+                providerMetadata: { openai: { itemId: "ws_1" } },
+              }),
+              {
+                type: "tool-result",
+                id: "ws_1",
+                name: "web_search",
+                result: { type: "json", value: { type: "web_search_call", id: "ws_1", status: "completed" } },
+                providerExecuted: true,
+                providerMetadata: { openai: { itemId: "ws_1" } },
+              },
+            ]),
+            Message.user("Continue."),
+          ],
+          providerOptions: { store: false },
+        }),
+      )
+
+      expect(prepared.body.input).toEqual([
+        { role: "user", content: [{ type: "input_text", text: "Search." }] },
+        { role: "user", content: [{ type: "input_text", text: '{"type":"web_search_call","id":"ws_1","status":"completed"}' }] },
+        { role: "user", content: [{ type: "input_text", text: "Continue." }] },
+      ])
+    }),
+  )
+
  it.effect("continues stateless hosted image generation with the generated image", () =>
    Effect.gen(function* () {
      const imageTool = OpenAI.imageGeneration({ action: "edit" })
@@ -2652,6 +2729,47 @@ describe("OpenAI Responses route", () => {
    }),
  )

+  it.effect("decodes computer_call as provider-executed tool-call + tool-result", () =>
+    Effect.gen(function* () {
+      const item = {
+        type: "computer_call",
+        id: "computer_1",
+        call_id: "call_1",
+        status: "completed",
+        action: { type: "click", x: 100, y: 200 },
+      }
+      const response = yield* LLMClient.generate(request).pipe(
+        Effect.provide(
+          fixedResponse(
+            sseEvents(
+              { type: "response.output_item.done", item },
+              { type: "response.completed", response: { usage: { input_tokens: 5, output_tokens: 1 } } },
+            ),
+          ),
+        ),
+      )
+
+      expect(response.events.filter((event) => event.type === "tool-call" || event.type === "tool-result")).toEqual([
+        {
+          type: "tool-call",
+          id: "computer_1",
+          name: "computer_use",
+          input: { type: "click", x: 100, y: 200 },
+          providerExecuted: true,
+          providerMetadata: { openai: { itemId: "computer_1" } },
+        },
+        {
+          type: "tool-result",
+          id: "computer_1",
+          name: "computer_use",
+          result: { type: "json", value: item },
+          providerExecuted: true,
+          providerMetadata: { openai: { itemId: "computer_1" } },
+        },
+      ])
+    }),
+  )
+
  it.effect("decodes image generation output as image content", () =>
    Effect.gen(function* () {
      const item = {
@@ -2765,7 +2883,7 @@ describe("OpenAI Responses route", () => {
            {
              type: "input_file",
              filename: "report.pdf",
-              file_data: "JVBERi0xLjQ=",
+              file_data: "data:application/pdf;base64,JVBERi0xLjQ=",
            },
          ],
        },
@@ -2796,7 +2914,7 @@ describe("OpenAI Responses route", () => {
            {
              type: "input_file",
              filename: "report.pdf",
-              file_data: "JVBERi0xLjQ=",
+              file_data: "data:application/pdf;base64,JVBERi0xLjQ=",
            },
          ],
        },
@@ -2821,7 +2939,7 @@ describe("OpenAI Responses route", () => {
            {
              type: "input_file",
              filename: "file",
-              file_data: "AAECAw==",
+              file_data: "data:application/x-tar;base64,AAECAw==",
            },
          ],
        },
@@ -3029,14 +3147,14 @@ describe("OpenAI Responses route", () => {
    }),
  )

-  it.effect("falls back to the raw payload when both error and response are absent", () =>
+  it.effect("classifies a detail-free error event as a transient provider failure", () =>
    Effect.gen(function* () {
      const error = yield* LLMClient.generate(request).pipe(
-        Effect.provide(fixedResponse(sseEvents({ type: "error" }))),
+        Effect.provide(fixedResponse(sseEvents({ type: "error", sequence_number: 2 }))),
        Effect.flip,
      )

-      expect(error.reason).toMatchObject({ _tag: "UnknownProvider" })
+      expect(error.reason).toMatchObject({ _tag: "ProviderInternal" })
      expect(error.reason.message).toContain('"type":"error"')
      expect(error.body).toBe(error.reason.message)
    }),
@@ -191,7 +191,7 @@ describe("LLMClient tools", () => {
        success: Schema.String,
        execute: () => Effect.succeed("hello"),
      })
-      const providerMetadata = { google: { functionCallId: "provider_call" } }
+      const providerMetadata = { google: { thoughtSignature: "provider_sig" } }
      const dispatched = yield* ToolRuntime.dispatch(
        { tool },
        LLMEvent.toolCall({ id: "call_1", name: "tool", input: {}, providerMetadata }),
@@ -50,32 +50,7 @@ describe("tool schema projections", () => {
    })
  })

-  test("openai keeps one flat object top-level schema", () => {
-    expect(
-      ToolSchemaProjection.openAI({
-        anyOf: [
-          {
-            type: "object",
-            properties: {
-              path: { type: "string" },
-              maybe: { anyOf: [{ type: "string" }, { type: "null" }] },
-            },
-          },
-          { type: "object", properties: { resource: { type: "string" } } },
-        ],
-      }),
-    ).toEqual({
-      type: "object",
-      properties: {
-        path: { type: "string" },
-        maybe: { type: "string" },
-        resource: { type: "string" },
-      },
-      additionalProperties: false,
-    })
-  })
-
-  it.effect("applies model compatibility before protocol projection", () =>
+  it.effect("applies model compatibility without changing schema semantics", () =>
    Effect.gen(function* () {
      const model = OpenAIChat.route
        .with({ endpoint: { baseURL: "https://api.openai.test/v1/" }, auth: Auth.bearer("test") })
@@ -107,11 +82,15 @@ describe("tool schema projections", () => {

      expect(prepared.body.tools?.[0]?.function.parameters).toEqual({
        type: "object",
-        properties: {
-          tuple: { type: "array", items: { anyOf: [{ type: "string" }, { type: "number" }] } },
-          linked: { $ref: "#/$defs/Linked" },
-        },
-        additionalProperties: false,
+        anyOf: [
+          {
+            type: "object",
+            properties: {
+              tuple: { type: "array", items: { anyOf: [{ type: "string" }, { type: "number" }] } },
+              linked: { $ref: "#/$defs/Linked" },
+            },
+          },
+        ],
      })
    }),
  )
@@ -899,8 +899,26 @@ function provider() {
        name: "OpenCode",
        models: { "claude-opus-4-6": { id: "claude-opus-4-6", name: "Claude Opus 4.6", limit: { context: 200_000 } } },
      },
+      {
+        id: "company-gateway",
+        name: "Company Gateway",
+        models: {
+          "fast-nano": {
+            id: "fast-nano",
+            api: { id: "openai/gpt-5.4-nano" },
+            name: "GPT-5.4 nano",
+            limit: { context: 128_000 },
+          },
+          "long-context": {
+            id: "long-context",
+            api: { id: "company/long-context" },
+            name: "Company Gateway Extra Long Context Model for Narrow Timeline Layouts",
+            limit: { context: 128_000 },
+          },
+        },
+      },
    ],
-    connected: ["opencode"],
+    connected: ["opencode", "company-gateway"],
    default: { providerID: "opencode", modelID: "claude-opus-4-6" },
  }
 }
@@ -179,6 +179,7 @@ async function expectMountedTree(page: Page, total: number) {
 }

 async function expectSideGeometry(page: Page) {
+  await expectPanelGap(page, 8)
  const geometry = await page.evaluate(() => {
    const review = document.querySelector<HTMLElement>("#review-panel")!.getBoundingClientRect()
    const terminal = document.querySelector<HTMLElement>("#terminal-panel")!.getBoundingClientRect()
@@ -188,15 +189,20 @@ async function expectSideGeometry(page: Page) {
      terminalLeft: terminal.left,
      terminalRight: terminal.right,
      terminalTop: terminal.top,
+      terminalBottom: terminal.bottom,
      reviewTop: review.top,
+      reviewBottom: review.bottom,
    }
  })
  expect(Math.abs(geometry.terminalLeft - geometry.reviewLeft)).toBeLessThanOrEqual(1)
  expect(Math.abs(geometry.terminalRight - geometry.reviewRight)).toBeLessThanOrEqual(1)
  expect(geometry.terminalTop).toBeGreaterThan(geometry.reviewTop)
+  expect(geometry.terminalTop - geometry.reviewBottom).toBeGreaterThanOrEqual(7)
+  expect(geometry.terminalTop - geometry.reviewBottom).toBeLessThanOrEqual(9)
 }

 async function expectBottomGeometry(page: Page) {
+  await expectPanelGap(page, 8)
  const geometry = await page.evaluate(() => {
    const review = document.querySelector<HTMLElement>("#review-panel")!
    const terminal = document.querySelector<HTMLElement>("#terminal-panel")!
@@ -226,6 +232,30 @@ async function expectBottomGeometry(page: Page) {
  expect(geometry.sidebar).toBeGreaterThanOrEqual(240)
 }

+async function expectPanelGap(page: Page, expected: number) {
+  await expect
+    .poll(() => {
+      return page.evaluate(() => {
+        const review = document.querySelector<HTMLElement>("#review-panel")?.getBoundingClientRect()
+        const terminal = document.querySelector<HTMLElement>("#terminal-panel")?.getBoundingClientRect()
+        if (!review || !terminal) return Number.NEGATIVE_INFINITY
+        const gap = terminal.top - review.bottom
+        return gap
+      })
+    })
+    .toBeGreaterThanOrEqual(expected - 1)
+  await expect
+    .poll(() => {
+      return page.evaluate(() => {
+        const review = document.querySelector<HTMLElement>("#review-panel")?.getBoundingClientRect()
+        const terminal = document.querySelector<HTMLElement>("#terminal-panel")?.getBoundingClientRect()
+        if (!review || !terminal) return Number.POSITIVE_INFINITY
+        return terminal.top - review.bottom
+      })
+    })
+    .toBeLessThanOrEqual(expected + 1)
+}
+
 function base64Encode(value: string) {
  return Buffer.from(value, "utf8").toString("base64").replace(/\+/g, "-").replace(/\//g, "_").replace(/=/g, "")
 }
@@ -250,6 +250,43 @@ test.describe("session timeline projection", () => {
    expect(rows).toEqual(["AssistantPart", "TurnDivider", "AssistantPart"])
  })

+  test("renders aliased and long custom model notices", async ({ page }) => {
+    const shortName = "GPT-5.4 nano"
+    const longName = "Company Gateway Extra Long Context Model for Narrow Timeline Layouts"
+    await setupTimeline(page, {
+      viewport: { width: 420, height: 700 },
+      sessionMessages: [
+        {
+          id: "msg_model_fast_nano",
+          type: "model-switched",
+          time: { created: 1700000000000 },
+          model: { providerID: "company-gateway", id: "fast-nano", variant: "xhigh" },
+        },
+        {
+          id: "msg_model_long_context",
+          type: "model-switched",
+          time: { created: 1700000001000 },
+          model: { providerID: "company-gateway", id: "long-context" },
+        },
+        userMessage(),
+        assistantMessage(),
+      ],
+    })
+
+    const shortNotice = page.locator('[data-slot="session-timeline-notice"]').filter({ hasText: shortName })
+    const longNotice = page.locator('[data-slot="session-timeline-notice"]').filter({ hasText: longName })
+    await expect(shortNotice).toBeVisible()
+    await expect(shortNotice.getByText(`Switched to ${shortName}`, { exact: true })).toBeVisible()
+    await expect(shortNotice.locator('[data-slot="session-timeline-notice-variant"]')).toHaveText("xhigh")
+    await expect(page.getByText("fast-nano", { exact: true })).toHaveCount(0)
+    await expect(shortNotice.locator('[data-component="provider-icon"]')).toBeVisible()
+    await expect(longNotice).toBeVisible()
+    await expect(longNotice.locator('[data-component="provider-icon"]')).toBeVisible()
+    await expect(longNotice.locator('[data-slot="session-timeline-notice-variant"]')).toHaveCount(0)
+    await expect(longNotice.locator("[title]")).toHaveAttribute("title", `Switched to ${longName}`)
+    await expect.poll(() => longNotice.evaluate((element) => element.scrollWidth <= element.clientWidth)).toBe(true)
+  })
+
  test("renders user image, file attachment, file reference, and agent reference", async ({ page }) => {
    const text = "Use @explore with @src/a.ts and inspect the attachments"
    const parts: PartSeed<"user">[] = [
@@ -243,7 +243,8 @@ test("focuses a terminal created from the new-terminal button", async ({ page })

  await page.getByRole("button", { name: "New terminal" }).click()
  await expect(page.getByRole("tab", { name: "Terminal 2" })).toHaveAttribute("aria-selected", "true")
-  await expect.poll(() => terminal.evaluate((element) => element.contains(document.activeElement))).toBe(true)
+  const active = page.locator(`#terminal-wrapper-${newPtyID} [data-component="terminal"]`)
+  await expect.poll(() => active.evaluate((element) => element.contains(document.activeElement))).toBe(true)
 })

 function seedCachedTerminal(page: Page) {
@@ -1,4 +1,4 @@
-import { expect, test } from "@playwright/test"
+import { expect, test, type Page } from "@playwright/test"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectSessionTitle } from "../utils/waits"

@@ -8,7 +8,7 @@ const sessionID = "ses_hidden_terminal_regression"
 const title = "Hidden terminal regression"
 const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`

-test("unmounts the terminal panel while it is hidden", async ({ page }) => {
+test("animates review and terminal panels while caching hidden terminal content", async ({ page }) => {
  await page.setViewportSize({ width: 1400, height: 900 })
  await mockOpenCodeServer(page, {
    directory,
@@ -42,6 +42,16 @@ test("unmounts the terminal panel while it is hidden", async ({ page }) => {
        time: { created: 1700000000000, updated: 1700000000000 },
      },
    ],
+    vcsDiff: [
+      {
+        file: "src/animation.ts",
+        additions: 1,
+        deletions: 1,
+        status: "modified",
+        patch:
+          "diff --git a/src/animation.ts b/src/animation.ts\n--- a/src/animation.ts\n+++ b/src/animation.ts\n@@ -1 +1 @@\n-export const value = 'before'\n+export const value = 'after'\n",
+      },
+    ],
    pageMessages: () => ({ items: [] }),
  })
  await page.route("**/api/pty*", (route) =>
@@ -94,24 +104,454 @@ test("unmounts the terminal panel while it is hidden", async ({ page }) => {

  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
  await expectSessionTitle(page, title)
+  await installMotionProbe(page)
+
+  const reviewToggle = page.getByRole("button", { name: "Toggle review" })
+  await reviewToggle.click()
+  await expect(page.locator("#review-panel")).toBeVisible()
+  await expectWidthMotions(page, 1)
+  await expectReviewWidthStable(page)
+  await expectLogicalSideAlignment(page, "ltr")
+  await page.evaluate(() => (document.documentElement.dir = "rtl"))
+  await expectLogicalSideAlignment(page, "rtl")
+  await page.evaluate(() => (document.documentElement.dir = "ltr"))

-  await page.keyboard.press("Control+Backquote")
  const panel = page.locator("#terminal-panel")
+  const terminalContent = page.locator('[data-component="terminal"]')
+  await page.keyboard.press("Control+Backquote")
+  await expect(panel).toBeVisible()
+  await expect(terminalContent).toBeVisible()
+  await terminalContent.evaluate((element) => element.setAttribute("data-cache-probe", "original"))
+  await expectHeightMotions(page, "session-side-region", 1)
+  await expectHeightMotions(page, "session-side-terminal-region", 1)
+  await expectStackedGeometry(page)
+  await expectPanelGapHeld(page)
+
+  await resetTerminalTopMotion(page)
+  await resetTerminalBottomMotion(page)
+  await resetTerminalAnchorGaps(page)
+  await resetPanelGaps(page)
+  const reviewContent = page.locator('[data-component="session-review-v2"]')
+  await reviewContent.evaluate((element) => element.setAttribute("data-cache-probe", "original"))
+  await reviewToggle.click()
+  await expect(page.locator("#review-panel")).toBeHidden()
+  await expect(reviewContent).toHaveAttribute("data-cache-probe", "original")
+  await expect(panel).toBeVisible()
+  await expectHeightMotions(page, "session-side-region", 2)
+  await expectHeightMotions(page, "session-side-terminal-region", 2)
+  await expectTerminalTopMotion(page)
+  await expectTerminalBottomFixed(page)
+  await expectTerminalTopAnchored(page)
+  await expectPanelGapHeld(page)
+  await reviewToggle.click()
+  await expect(page.locator("#review-panel")).toBeVisible()
+  await expect(reviewContent).toHaveAttribute("data-cache-probe", "original")
+  await expectHeightMotions(page, "session-side-region", 3)
+  await expectHeightMotions(page, "session-side-terminal-region", 3)
+
+  await resetTerminalContentSizes(page)
+  await resetPanelGaps(page)
+  await page.keyboard.press("Control+Backquote")
+  await expect(page.locator('[data-slot="side-terminal-panel-clip"]')).toHaveCSS("overflow", "clip")
+  await expectHeightMotions(page, "session-side-region", 4)
+  await expectHeightMotions(page, "session-side-terminal-region", 4)
+  await expect(panel).toBeHidden()
+  await expect(terminalContent).toHaveAttribute("data-cache-probe", "original")
+  await expectTerminalContentCachedSize(page)
+  await expectStackPainted(page)
+  await expectPanelGapHeld(page)
+  await expect(page.locator('[data-slot="session-side-panel-gap"]')).toHaveCSS("height", "0px")
+
+  await reviewToggle.click()
+  await expect(page.locator("#review-panel")).toHaveCount(0)
+  await expectWidthMotions(page, 2)
+  await expectSideSlideSettled(page, 2)
+  await expectHiddenSideAligned(page)
+
+  await resetHeightMotions(page)
+  await resetHorizontalScrolls(page)
+  await page.keyboard.press("Control+Backquote")
  await expect(panel).toHaveAttribute("aria-hidden", "false")
  await expect(page.locator('[data-component="terminal"]')).toBeVisible()
+  await expectWidthMotions(page, 3)
+  await expectSideSlideSettled(page, 3)
+  await expectNoHeightMotion(page)
+  await expectNoHorizontalScroll(page)

  await page.keyboard.press("Control+Backquote")
-  await expect(panel).toHaveCount(0)
-  await expect(page.locator('[data-component="terminal"]')).toHaveCount(0)
+  await expect(panel).toBeHidden()
+  await expect(terminalContent).toHaveAttribute("data-cache-probe", "original")
+  await expectWidthMotions(page, 4)

  await page.setViewportSize({ width: 1200, height: 700 })
-  await expect(page.locator('[data-component="terminal"]')).toHaveCount(0)
+  await expect(terminalContent).toHaveAttribute("data-cache-probe", "original")

  await page.keyboard.press("Control+Backquote")
  await expect(panel).toBeVisible()
-  await expect(page.locator('[data-component="terminal"]')).toBeVisible()
+  await expect(terminalContent).toBeVisible()
+  await expect(terminalContent).toHaveAttribute("data-cache-probe", "original")
+  await expectWidthMotions(page, 5)
+
+  await page.keyboard.press("Control+Backquote")
+  await expect(panel).toBeHidden()
+
+  await page.evaluate(() => {
+    const settings = JSON.parse(localStorage.getItem("settings.v3") ?? "{}")
+    localStorage.setItem(
+      "settings.v3",
+      JSON.stringify({ ...settings, general: { ...settings.general, terminalPlacement: "bottom" } }),
+    )
+  })
+  await page.reload()
+  await expectSessionTitle(page, title)
+  await installMotionProbe(page)
+
+  await page.keyboard.press("Control+Backquote")
+  await expect(panel).toBeVisible()
+  await expectAnimation(page, "terminal-panel-size-in")
+  await page.keyboard.press("Control+Backquote")
+  await expectAnimation(page, "terminal-panel-size-out")
+  await expect(panel).toBeHidden()
+  await expect(page.locator('[data-component="terminal"]')).toBeAttached()
 })

+type MotionProbe = {
+  widths: number
+  widthEnds: number
+  horizontalScrolls: number[]
+  reviewWidths: number[]
+  paintGaps: { review: number; terminalSurface: number }[]
+  terminalContentSizes: { width: number; height: number }[]
+  terminalAnchorGaps: number[]
+  resetAnchorOnMotion: boolean
+  panelGaps: number[]
+  terminalTops: number[]
+  terminalBottoms: number[]
+  heights: string[]
+  animations: string[]
+}
+
+async function installMotionProbe(page: Page) {
+  await page.evaluate(() => {
+    const probe: MotionProbe = {
+      widths: 0,
+      widthEnds: 0,
+      horizontalScrolls: [],
+      reviewWidths: [],
+      paintGaps: [],
+      terminalContentSizes: [],
+      terminalAnchorGaps: [],
+      resetAnchorOnMotion: false,
+      panelGaps: [],
+      terminalTops: [],
+      terminalBottoms: [],
+      heights: [],
+      animations: [],
+    }
+    const observed = new WeakSet<Element>()
+    const observers: ResizeObserver[] = []
+    const observeReview = () => {
+      const review = document.querySelector('[data-component="session-review-v2"]')
+      if (!review || observed.has(review)) return
+      observed.add(review)
+      const observer = new ResizeObserver(([entry]) => probe.reviewWidths.push(entry.contentRect.width))
+      observer.observe(review)
+      observers.push(observer)
+    }
+    const observedRegions = new WeakSet<Element>()
+    const observeStack = () => {
+      const reviewRegion = document.querySelector<HTMLElement>('[data-slot="session-side-region"]')
+      const terminalRegion = document.querySelector<HTMLElement>('[data-slot="session-side-terminal-region"]')
+      if (!reviewRegion || !terminalRegion || observedRegions.has(reviewRegion)) return
+      observedRegions.add(reviewRegion)
+      const observer = new ResizeObserver(() => {
+        const review = document.querySelector<HTMLElement>("#review-panel")
+        const terminal = document.querySelector<HTMLElement>("#terminal-panel")
+        const terminalContent = document.querySelector<HTMLElement>('[data-slot="terminal-panel-content"]')
+        const panelGap = document.querySelector<HTMLElement>('[data-slot="session-side-panel-gap"]')
+        if (!terminal || !terminalContent) return
+        probe.terminalTops.push(terminal.getBoundingClientRect().top)
+        probe.terminalBottoms.push(terminal.getBoundingClientRect().bottom)
+        probe.terminalContentSizes.push({
+          width: terminalContent.getBoundingClientRect().width,
+          height: terminalContent.getBoundingClientRect().height,
+        })
+        const anchorGap = Math.abs(terminal.getBoundingClientRect().top - terminalContent.getBoundingClientRect().top)
+        if (probe.resetAnchorOnMotion) {
+          if (anchorGap > 8) return
+          probe.terminalAnchorGaps = []
+          probe.resetAnchorOnMotion = false
+        }
+        probe.terminalAnchorGaps.push(anchorGap)
+        if (panelGap && terminalRegion.getBoundingClientRect().height > 1)
+          probe.panelGaps.push(panelGap.getBoundingClientRect().height)
+        if (!review) return
+        probe.paintGaps.push({
+          review: Math.abs(reviewRegion.getBoundingClientRect().height - review.getBoundingClientRect().height),
+          terminalSurface: Math.abs(
+            terminalRegion.getBoundingClientRect().height - terminal.getBoundingClientRect().height,
+          ),
+        })
+      })
+      observer.observe(reviewRegion)
+      observer.observe(terminalRegion)
+      observers.push(observer)
+    }
+    new MutationObserver(() => {
+      observeReview()
+      observeStack()
+    }).observe(document.body, { childList: true, subtree: true })
+    observeReview()
+    observeStack()
+    document.addEventListener("transitionrun", (event) => {
+      if (!(event.target instanceof Element)) return
+      const slot = event.target.getAttribute("data-slot")
+      if (event.propertyName === "width" && slot === "session-chat-panel") probe.widths++
+      if (event.propertyName === "height" && slot) {
+        probe.heights.push(slot)
+      }
+    })
+    document.addEventListener("transitionend", (event) => {
+      if (!(event.target instanceof Element)) return
+      if (event.propertyName === "width" && event.target.getAttribute("data-slot") === "session-chat-panel")
+        probe.widthEnds++
+    })
+    document.addEventListener("animationstart", (event) => {
+      if (!(event.target instanceof Element) || event.target.getAttribute("data-component") !== "terminal-panel") return
+      probe.animations.push(event.animationName)
+    })
+    window.addEventListener("scroll", () => probe.horizontalScrolls.push(window.scrollX))
+    ;(window as Window & { __panelMotion?: MotionProbe }).__panelMotion = probe
+  })
+}
+
+async function expectWidthMotions(page: Page, count: number) {
+  await expect
+    .poll(() => page.evaluate(() => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.widths ?? 0))
+    .toBeGreaterThanOrEqual(count)
+}
+
+async function resetHeightMotions(page: Page) {
+  await page.evaluate(() => {
+    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
+    if (probe) probe.heights = []
+  })
+}
+
+async function expectSideSlideSettled(page: Page, count: number) {
+  await expect
+    .poll(() => page.evaluate(() => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.widthEnds ?? 0))
+    .toBeGreaterThanOrEqual(count)
+}
+
+async function expectNoHeightMotion(page: Page) {
+  const heights = await page.evaluate(
+    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.heights ?? [],
+  )
+  expect(heights).toEqual([])
+}
+
+async function expectHiddenSideAligned(page: Page) {
+  await expect
+    .poll(() =>
+      page.evaluate(() => {
+        const chat = document.querySelector<HTMLElement>('[data-slot="session-chat-panel"]')
+        const side = document.querySelector<HTMLElement>('[data-slot="session-side-panel-presence"]')
+        if (!chat?.parentElement || !side) return Number.POSITIVE_INFINITY
+        const row = chat.parentElement.getBoundingClientRect()
+        const hidden = side.getBoundingClientRect()
+        return Math.max(
+          Math.abs(row.top - hidden.top),
+          Math.abs(row.right - hidden.right),
+          Math.abs(row.bottom - hidden.bottom),
+        )
+      }),
+    )
+    .toBeLessThanOrEqual(1)
+}
+
+async function resetHorizontalScrolls(page: Page) {
+  await page.evaluate(() => {
+    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
+    if (probe) probe.horizontalScrolls = []
+  })
+}
+
+async function expectNoHorizontalScroll(page: Page) {
+  const scrolls = await page.evaluate(
+    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.horizontalScrolls ?? [],
+  )
+  expect(Math.max(0, ...scrolls)).toBe(0)
+  expect(await page.evaluate(() => window.scrollX)).toBe(0)
+}
+
+async function expectReviewWidthStable(page: Page) {
+  const side = page.locator('[data-slot="session-side-panel-presence"]')
+  await expect
+    .poll(() => side.evaluate((element) => element.getAnimations().every((item) => item.playState === "finished")))
+    .toBe(true)
+  await expect
+    .poll(() =>
+      page.evaluate(() => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.reviewWidths.length ?? 0),
+    )
+    .toBeGreaterThan(0)
+  const widths = await page.evaluate(
+    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.reviewWidths.map(Math.round) ?? [],
+  )
+  expect(new Set(widths).size).toBe(1)
+}
+
+async function expectStackedGeometry(page: Page) {
+  await expect
+    .poll(() =>
+      page.evaluate(() => {
+        const review = document.querySelector<HTMLElement>("#review-panel")?.getBoundingClientRect()
+        const terminal = document.querySelector<HTMLElement>("#terminal-panel")?.getBoundingClientRect()
+        if (!review || !terminal) return Number.POSITIVE_INFINITY
+        return terminal.top - review.bottom
+      }),
+    )
+    .toBeLessThanOrEqual(9)
+  await expect
+    .poll(() =>
+      page.evaluate(() => {
+        const review = document.querySelector<HTMLElement>("#review-panel")?.getBoundingClientRect()
+        const terminal = document.querySelector<HTMLElement>("#terminal-panel")?.getBoundingClientRect()
+        if (!review || !terminal) return Number.NEGATIVE_INFINITY
+        return terminal.top - review.bottom
+      }),
+    )
+    .toBeGreaterThanOrEqual(7)
+}
+
+async function expectLogicalSideAlignment(page: Page, direction: "ltr" | "rtl") {
+  await expect
+    .poll(() =>
+      page.evaluate((direction) => {
+        const frame = document.querySelector('[data-slot="session-side-panel-presence"]')?.getBoundingClientRect()
+        const content = document.querySelector('[data-slot="session-side-panel-content"]')?.getBoundingClientRect()
+        if (!frame || !content) return Number.POSITIVE_INFINITY
+        return direction === "rtl" ? Math.abs(frame.right - content.right) : Math.abs(frame.left - content.left)
+      }, direction),
+    )
+    .toBeLessThanOrEqual(1)
+}
+
+async function expectStackPainted(page: Page) {
+  const gaps = await page.evaluate(
+    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.paintGaps ?? [],
+  )
+  expect(gaps.length).toBeGreaterThan(0)
+  expect(Math.max(...gaps.map((gap) => gap.review))).toBeLessThanOrEqual(1)
+  expect(Math.max(...gaps.map((gap) => gap.terminalSurface)), JSON.stringify(gaps)).toBeLessThanOrEqual(1)
+}
+
+async function resetTerminalTopMotion(page: Page) {
+  await page.evaluate(() => {
+    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
+    if (probe) probe.terminalTops = []
+  })
+}
+
+async function resetTerminalBottomMotion(page: Page) {
+  await page.evaluate(() => {
+    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
+    if (probe) probe.terminalBottoms = []
+  })
+}
+
+async function expectTerminalBottomFixed(page: Page) {
+  const bottoms = await page.evaluate(
+    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.terminalBottoms ?? [],
+  )
+  expect(bottoms.length).toBeGreaterThan(0)
+  expect(Math.max(...bottoms) - Math.min(...bottoms)).toBeLessThanOrEqual(1)
+}
+
+async function resetTerminalAnchorGaps(page: Page) {
+  await page.evaluate(() => {
+    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
+    if (probe) probe.resetAnchorOnMotion = true
+  })
+}
+
+async function resetPanelGaps(page: Page) {
+  await page.evaluate(() => {
+    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
+    if (probe) probe.panelGaps = []
+  })
+}
+
+async function expectPanelGapHeld(page: Page) {
+  const gaps = await page.evaluate(
+    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.panelGaps ?? [],
+  )
+  expect(gaps.length).toBeGreaterThan(0)
+  expect(gaps.filter((gap) => gap >= 7 && gap <= 9).length / gaps.length).toBeGreaterThan(0.6)
+  expect(Math.min(...gaps)).toBeGreaterThanOrEqual(0)
+  expect(Math.max(...gaps)).toBeLessThanOrEqual(9)
+}
+
+async function expectTerminalTopAnchored(page: Page) {
+  const gaps = await page.evaluate(
+    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.terminalAnchorGaps ?? [],
+  )
+  expect(gaps.length).toBeGreaterThan(0)
+  expect(Math.max(...gaps), JSON.stringify(gaps)).toBeLessThanOrEqual(8)
+}
+
+async function resetTerminalContentSizes(page: Page) {
+  await page.evaluate(() => {
+    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
+    if (probe) probe.terminalContentSizes = []
+  })
+}
+
+async function expectTerminalContentCachedSize(page: Page) {
+  const sizes = await page.evaluate(
+    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.terminalContentSizes ?? [],
+  )
+  expect(sizes.length).toBeGreaterThan(0)
+  expect(Math.min(...sizes.map((size) => size.width))).toBeGreaterThan(100)
+  expect(Math.min(...sizes.map((size) => size.height))).toBeGreaterThan(100)
+}
+
+async function expectTerminalTopMotion(page: Page) {
+  const tops = await page.evaluate(
+    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.terminalTops.map(Math.round) ?? [],
+  )
+  const unique = [...new Set(tops)]
+  const range = Math.max(...unique) - Math.min(...unique)
+  const maxDelta = Math.max(...unique.slice(1).map((value, index) => Math.abs(value - unique[index])))
+  expect(unique.length, JSON.stringify(unique)).toBeGreaterThan(6)
+  expect(maxDelta, JSON.stringify({ unique, range, maxDelta })).toBeLessThan(range * 0.3)
+}
+
+async function expectHeightMotions(page: Page, slot: string, count: number) {
+  await expect
+    .poll(() =>
+      page.evaluate(
+        (slot) =>
+          (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.heights.filter((value) => value === slot)
+            .length ?? 0,
+        slot,
+      ),
+    )
+    .toBeGreaterThanOrEqual(count)
+}
+
+async function expectAnimation(page: Page, name: string) {
+  await expect
+    .poll(() =>
+      page.evaluate(
+        (name) =>
+          (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.animations.includes(name) ?? false,
+        name,
+      ),
+    )
+    .toBe(true)
+}
+
 function base64Encode(value: string) {
  return Buffer.from(value, "utf8").toString("base64").replace(/\+/g, "-").replace(/\//g, "_").replace(/=/g, "")
 }
@@ -501,7 +501,7 @@ function currentModels(value: unknown) {
        return [
          {
            id: model.id,
-            modelID: model.id,
+            modelID: record(model.api) && typeof model.api.id === "string" ? model.api.id : model.id,
            providerID: provider.id,
            name: model.name,
            capabilities: { tools: true, input: ["text"], output: ["text"] },
@@ -33,6 +33,133 @@
 }

@layer components {
+  [data-slot="session-side-panel-presence"][data-opened="true"] {
+    animation: terminal-panel-presence-in 240ms cubic-bezier(0.22, 1, 0.36, 1);
+  }
+
+  [data-slot="session-side-panel-presence"][data-opened="false"] {
+    animation: terminal-panel-presence-out 240ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
+  }
+
+  [data-slot="session-side-region-presence"][data-opened="true"] {
+    animation: side-region-presence-in 240ms cubic-bezier(0.22, 1, 0.36, 1);
+  }
+
+  [data-slot="session-side-region-presence"][data-opened="false"] {
+    animation: side-region-presence-out 240ms cubic-bezier(0.22, 1, 0.36, 1);
+  }
+
+  [data-slot="terminal-panel-presence"][data-opened="true"] {
+    animation: terminal-panel-presence-in 200ms cubic-bezier(0.22, 1, 0.36, 1);
+  }
+
+  [data-slot="terminal-panel-presence"][data-opened="false"] {
+    animation: terminal-panel-presence-out 200ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
+  }
+
+  [data-slot="side-terminal-panel-presence"][data-opened="true"] {
+    animation: side-terminal-panel-presence-in 240ms cubic-bezier(0.22, 1, 0.36, 1);
+  }
+
+  [data-slot="side-terminal-panel-presence"][data-opened="false"] {
+    animation: side-terminal-panel-presence-out 240ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
+  }
+
+  [data-component="terminal-panel"][data-size-animated="true"][data-opened="true"] {
+    animation: terminal-panel-size-in 200ms cubic-bezier(0.22, 1, 0.36, 1);
+  }
+
+  [data-component="terminal-panel"][data-size-animated="true"][data-opened="false"] {
+    animation: terminal-panel-size-out 200ms cubic-bezier(0.22, 1, 0.36, 1);
+  }
+
+  @media (prefers-reduced-motion: reduce) {
+    [data-slot="terminal-panel-presence"],
+    [data-slot="side-terminal-panel-presence"],
+    [data-slot="session-side-panel-presence"],
+    [data-slot="session-side-region-presence"],
+    [data-component="terminal-panel"] {
+      animation: none !important;
+    }
+  }
+
+  @keyframes terminal-panel-presence-in {
+    from {
+      opacity: 0;
+    }
+    to {
+      opacity: 1;
+    }
+  }
+
+  @keyframes terminal-panel-presence-out {
+    from {
+      opacity: 1;
+    }
+    to {
+      opacity: 0;
+    }
+  }
+
+  @keyframes side-terminal-panel-presence-in {
+    from {
+      opacity: 0.999999;
+    }
+    to {
+      opacity: 1;
+    }
+  }
+
+  @keyframes side-terminal-panel-presence-out {
+    from {
+      opacity: 1;
+    }
+    to {
+      opacity: 0.999999;
+      visibility: hidden;
+    }
+  }
+
+  @keyframes side-region-presence-in {
+    from {
+      opacity: 0;
+    }
+    0.01% {
+      opacity: 0.999999;
+    }
+    to {
+      opacity: 1;
+    }
+  }
+
+  @keyframes side-region-presence-out {
+    from {
+      opacity: 1;
+    }
+    to {
+      opacity: 0.999999;
+      visibility: hidden;
+    }
+  }
+
+  @keyframes terminal-panel-size-in {
+    from {
+      height: 0;
+    }
+    to {
+      height: var(--terminal-panel-height);
+    }
+  }
+
+  @keyframes terminal-panel-size-out {
+    from {
+      height: var(--terminal-panel-height);
+    }
+    to {
+      height: 0;
+    }
+  }
+
  [data-component="getting-started"] {
    container-type: inline-size;
    container-name: getting-started;
@@ -1,7 +1,7 @@
 import { describe, expect, test } from "bun:test"
 import type { OpenCodeEvent } from "@opencode-ai/client/promise"
 import { createRoot } from "solid-js"
-import { createOpenCodeEventSource } from "./client"
+import { createOpenCodeEventSource, createServerTransport } from "./client"

 const permission = {
  id: "evt_permission",
@@ -84,3 +84,39 @@ describe("server event stream", () => {
    second.dispose()
  })
 })
+
+test("rotates HTTP and PTY clients together", async () => {
+  const requests: Array<{ url: string; authorization: string | null }> = []
+  const fetch = (async (input: string | URL | Request, init?: RequestInit) => {
+    const request = input instanceof Request ? input : new Request(input, init)
+    requests.push({ url: request.url, authorization: request.headers.get("authorization") })
+    return Response.json({ healthy: true, version: "2.0.0-test", pid: 1 })
+  }) as typeof globalThis.fetch
+  const transport = createServerTransport({
+    http: { url: "http://127.0.0.1:4100", username: "opencode", password: "first" },
+    fetch,
+  })
+  const initialPty = transport.pty
+
+  await transport.api.health.get()
+  const replacement = transport.update({
+    url: "http://127.0.0.1:4200",
+    username: "opencode",
+    password: "second",
+  })
+  await transport.api.health.get()
+
+  expect(replacement).toBe(transport.api)
+  expect(transport.pty).not.toBe(initialPty)
+  expect(transport.url).toBe("http://127.0.0.1:4200")
+  expect(requests).toEqual([
+    {
+      url: "http://127.0.0.1:4100/api/health",
+      authorization: `Basic ${btoa("opencode:first")}`,
+    },
+    {
+      url: "http://127.0.0.1:4200/api/health",
+      authorization: `Basic ${btoa("opencode:second")}`,
+    },
+  ])
+})
@@ -72,11 +72,12 @@ type ServerSDKBase = {

 function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerScope): ServerSDKBase {
  const platform = usePlatform()
-  const api = createApiForServer({ server: server.http, fetch: platform.fetch })
-  const pty = createPtyClient(api, { url: server.http.url })
+  const transport = createServerTransport({ http: server.http, fetch: platform.fetch })
  const events = createOpenCodeEventSource()
+  const reconnect = server.type === "sidecar" && server.variant === "base" ? server.reconnect : undefined

-  const connection = createClientConnection(api, {
+  const connection = createClientConnection(transport.api, {
+    reconnect: reconnect ? async (signal) => transport.update(await reconnect(signal)) : undefined,
    flushInterval: 16,
    pageLifecycle: true,
    onEvent(event) {
@@ -85,7 +86,7 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
    log: {
      info(message, data) {
        if (message !== "event stream disconnected") return
-        console.info("[global-sdk] event stream disconnected", { url: server.http.url, ...data })
+        console.info("[global-sdk] event stream disconnected", { url: transport.url, managed: !!reconnect, ...data })
      },
    },
  })
@@ -93,14 +94,48 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
  return {
    server,
    scope,
-    url: server.http.url,
-    api,
-    pty,
+    get url() {
+      return transport.url
+    },
+    get api() {
+      return transport.api
+    },
+    get pty() {
+      return transport.pty
+    },
    connection,
    event: events.event,
  }
 }

+export function createServerTransport(input: { http: ServerConnection.HttpBase; fetch?: typeof globalThis.fetch }): {
+  update(http: ServerConnection.HttpBase): ServerApi
+  readonly url: string
+  readonly api: ServerApi
+  readonly pty: ReturnType<typeof createPtyClient>
+} {
+  const build = (http: ServerConnection.HttpBase) => {
+    const api = createApiForServer({ server: http, fetch: input.fetch })
+    return { http, api, pty: createPtyClient(api, { url: http.url }) }
+  }
+  const state = { current: build(input.http) }
+  return {
+    update(http: ServerConnection.HttpBase) {
+      state.current = build(http)
+      return state.current.api
+    },
+    get url() {
+      return state.current.http.url
+    },
+    get api() {
+      return state.current.api
+    },
+    get pty() {
+      return state.current.pty
+    },
+  }
+}
+
 export type ServerSDK = ServerSDKBase & {
  ensureDirSdkContext: (directory: string) => ReturnType<typeof createDirSdkContext>
 }
@@ -210,7 +210,7 @@ export namespace ServerConnection {
    http: HttpBase
  } & (
    | // Regular desktop server
-    { variant: "base" }
+    { variant: "base"; reconnect?: (signal: AbortSignal) => Promise<HttpBase> }
    // WSL server (windows only)
    | {
        variant: "wsl"
@@ -36,10 +36,10 @@ export const loadLspQuery = (scope: ServerScope, directory: string) =>
    queryFn: async () => [],
  })

-function makeQueryOptionsApi(scope: ServerScope, serverAPI: ServerApi) {
+function makeQueryOptionsApi(scope: ServerScope, serverAPI: () => ServerApi) {
  return {
    globalConfig: () => loadGlobalConfigQuery(scope),
-    path: () => loadPathQuery(scope, null, serverAPI.location),
+    path: () => loadPathQuery(scope, null, serverAPI().location),
    lsp: (directory: PathKey) => loadLspQuery(scope, directory),
  }
 }
@@ -52,7 +52,7 @@ export function createServerSyncContextInner(serverSDK: ServerSDK, data: Data) {
  if (!owner) throw new Error("ServerSync must be created within owner")

  const booting = new Map<string, Promise<void>>()
-  const queryOptionsApi = makeQueryOptionsApi(serverSDK.scope, serverSDK.api)
+  const queryOptionsApi = makeQueryOptionsApi(serverSDK.scope, () => serverSDK.api)
  const connected = () => serverSDK.connection.status() === "connected"

  const [configQuery, pathQuery] = useQueries(() => ({
@@ -36,7 +36,7 @@ export function SessionComposerRegion(props: {
      <div
        classList={{
          "w-full px-3 pointer-events-auto": true,
-          "md:max-w-200 md:mx-auto 2xl:max-w-[1000px]": controller.centered(),
+          "md:max-w-[1000px] md:mx-auto": controller.centered(),
        }}
      >
        <Show when={controller.state.questionRequest()} keyed>
@@ -62,7 +62,7 @@ export function SessionSidePanel(props: {
  fileBrowserState: SessionFileBrowserState
  activeDiff?: string
  focusReviewDiff: (path: string) => void
-  reviewSnap: boolean
+  reviewPresent?: boolean
  size: Sizing
  stacked?: boolean
 }) {
@@ -79,6 +79,7 @@ export function SessionSidePanel(props: {
  const shown = settings.visibility.fileTree

  const reviewOpen = createMemo(() => isDesktop() && view().reviewPanel.opened())
+  const reviewVisible = createMemo(() => reviewOpen() || !!props.reviewPresent)
  const fileOpen = createMemo(
    () =>
      isDesktop() &&
@@ -88,11 +89,12 @@ export function SessionSidePanel(props: {
      }),
  )
  const open = createMemo(() => reviewOpen() || fileOpen())
+  const visible = createMemo(() => reviewVisible() || fileOpen())
  const fileTreeWidth = createMemo(() => Math.max(FILE_TREE_WIDTH_MIN, layout.fileTree.width()))
  const reviewTab = createMemo(() => isDesktop())
  const panelWidth = createMemo(() => {
-    if (!open()) return "0px"
-    if (reviewOpen()) return "auto"
+    if (!visible()) return "0px"
+    if (reviewVisible()) return "auto"
    return `${fileTreeWidth()}px`
  })
  const treeWidth = createMemo(() => (fileOpen() ? `${fileTreeWidth()}px` : "0px"))
@@ -252,14 +254,14 @@ export function SessionSidePanel(props: {
          "h-full min-h-0": props.stacked,
          "pointer-events-none": !open(),
          "transition-[width] duration-[240ms] ease-[cubic-bezier(0.22,1,0.36,1)] will-change-[width] motion-reduce:transition-none":
-            !props.size.active() && !props.reviewSnap,
-          "flex-1": reviewOpen(),
+            !props.size.active(),
+          "flex-1": reviewVisible(),
        }}
        style={{ width: panelWidth() }}
      >
-        <Show when={open()}>
+        <Show when={visible()}>
          <div class="size-full flex">
-            <Show when={reviewOpen()}>
+            <Show when={reviewVisible()}>
              <div class="relative min-w-0 h-full flex-1 overflow-hidden bg-v2-background-bg-base">
                <div class="size-full min-w-0 h-full bg-v2-background-bg-base">
                  <DragDropProvider
@@ -101,11 +101,11 @@ export const focusTerminalById = (id: string) => {

  const textarea = terminal.querySelector("textarea")
  if (textarea instanceof HTMLTextAreaElement) {
-    textarea.focus()
+    textarea.focus({ preventScroll: true })
    return true
  }

-  terminal.focus()
+  terminal.focus({ preventScroll: true })
  terminal.dispatchEvent(
    typeof PointerEvent === "function"
      ? new PointerEvent("pointerdown", { bubbles: true, cancelable: true })
@@ -124,11 +124,12 @@ export function createSessionReview(input: {
      queryKey: [server.scope, "session-details", input.session.workspace.directory()],
    })
  }, 100)
-  onCleanup(
-    location().event.listen((event) => {
+  createEffect(() => {
+    const stop = location().event.listen((event) => {
      if (event.type === "filesystem.changed") refresh()
-    }),
-  )
+    })
+    onCleanup(stop)
+  })
  createEffect(
    on(
      () => input.screen.review.open() || mobileChanges(),
@@ -58,7 +58,7 @@ export function SessionMobileReview(props: { review: SessionReviewModel }) {
  )
 }

-export function SessionDesktopReview(props: { review: SessionReviewModel }) {
+export function SessionDesktopReview(props: { review: SessionReviewModel; present?: boolean }) {
  return (
    <Suspense>
      <SessionSidePanel
@@ -79,7 +79,7 @@ export function SessionDesktopReview(props: { review: SessionReviewModel }) {
        fileBrowserState={props.review.panelState}
        activeDiff={props.review.activeFile()}
        focusReviewDiff={props.review.focusFile}
-        reviewSnap={props.review.screen.review.snap()}
+        reviewPresent={props.present}
        size={props.review.screen.size}
        stacked={props.review.screen.side.layout().stacked}
      />
@@ -2,12 +2,11 @@ import { ErrorBoundary, createEffect, createMemo, Show, type ParentProps } from
 import { useParams } from "@solidjs/router"
 import { CommentsProvider } from "@/composer/comments"
 import { FileProvider } from "@/workspaces/files/model"
-import { LocationProvider, useWorkspaceLocation } from "@/workspaces/location"
+import { LocationProvider } from "@/workspaces/location"
 import { ModelsProvider } from "@/providers/models/models"
 import { useNotification } from "@/shell/notifications/notification"
 import { ComposerPersistenceProvider } from "@/composer/persistence"
 import { useData, useServer } from "@/runtime/server/current"
-import { useServerSDK } from "@/runtime/server/client"
 import { ServerConnection } from "@/runtime/server/registry"
 import { TerminalProvider } from "@/session/terminal/context"
 import { useSettingsCommand } from "@/settings/command"
@@ -86,7 +85,7 @@ function ResolvedTargetSessionRoute() {
    >
      <Show when={directory()} fallback={<PendingSessionState sessionID={params.id} />}>
        {(value) => (
-          <LocationProvider directory={value()}>
+          <LocationProvider directory={value}>
            <SessionUIProvider directory={value()} server={server.key}>
              <TargetSessionPage />
            </SessionUIProvider>
@@ -114,23 +113,18 @@ function SessionStatePanel(props: ParentProps) {
 }

 function TargetSessionPage() {
-  const location = useWorkspaceLocation()
-  const server = useServerSDK()
-
  return (
-    // Keep workspace-scoped file, prompt, comment, and terminal state alive when
-    // the user switches between Sessions in the same workspace.
-    <Show when={`${server.scope}\0${location().directory}`} keyed>
-      <TerminalProvider>
-        <FileProvider>
-          <ComposerPersistenceProvider>
-            <CommentsProvider>
-              <SessionPage />
-            </CommentsProvider>
-          </ComposerPersistenceProvider>
-        </FileProvider>
-      </TerminalProvider>
-    </Show>
+    // These providers select their scoped state reactively and retain bounded caches,
+    // so keep their owners alive while navigating between workspaces on this server.
+    <TerminalProvider>
+      <FileProvider>
+        <ComposerPersistenceProvider>
+          <CommentsProvider>
+            <SessionPage />
+          </CommentsProvider>
+        </ComposerPersistenceProvider>
+      </FileProvider>
+    </TerminalProvider>
  )
 }

@@ -1,4 +1,5 @@
-import { createComputed, createMemo, createSignal, onCleanup } from "solid-js"
+import { createEffect, createMemo } from "solid-js"
+import { createStore } from "solid-js/store"
 import { createResizeObserver } from "@solid-primitives/resize-observer"
 import { useLayout } from "@/shell/state/layout"
 import { useSettings } from "@/settings/model"
@@ -14,11 +15,9 @@ export function createSessionScreenLayout(session: SessionModel, serverScope: st
  const reviewOpen = createMemo(() => session.isDesktop() && session.layout.view().reviewPanel.opened())
  const reviewPanelOpen = createMemo(() => reviewOpen() && !!session.identity.params.id)
  const terminalOpen = createMemo(() => session.layout.view().terminal.opened())
-  const desktopTerminalOpen = createMemo(() => session.isDesktop() && terminalOpen())
-  const sideTerminalOpen = createMemo(() => desktopTerminalOpen() && settings.general.terminalPlacement() === "side")
-  const bottomTerminalOpen = createMemo(
-    () => desktopTerminalOpen() && settings.general.terminalPlacement() === "bottom",
-  )
+  const sideTerminal = createMemo(() => session.isDesktop() && settings.general.terminalPlacement() === "side")
+  const bottomTerminal = createMemo(() => session.isDesktop() && settings.general.terminalPlacement() === "bottom")
+  const sideTerminalOpen = createMemo(() => terminalOpen() && sideTerminal())
  const fileTreeOpen = createMemo(
    () =>
      session.isDesktop() &&
@@ -29,14 +28,14 @@ export function createSessionScreenLayout(session: SessionModel, serverScope: st
  )
  const resizable = createMemo(() => reviewPanelOpen() || sideTerminalOpen())
  const sidePanelOpen = createMemo(() => resizable() || fileTreeOpen())
-  const [rowWidth, setRowWidth] = createSignal<number>()
+  const [rowSize, setRowSize] = createStore<{ width?: number; height?: number }>({})
  let row: HTMLDivElement | undefined
  createResizeObserver(
    () => row,
-    ({ width }) => setRowWidth(width),
+    ({ width, height }) => setRowSize({ width, height }),
  )
  const available = createMemo<number | undefined>(() => {
-    const width = rowWidth()
+    const width = rowSize.width
    if (width === undefined) return undefined
    return width - 8
  })
@@ -65,24 +64,30 @@ export function createSessionScreenLayout(session: SessionModel, serverScope: st
      files: fileTreeOpen(),
    }),
  )
-  const [reviewSnap, setReviewSnap] = createSignal(false)
-  let reviewFrame: number | undefined
-  createComputed((previous) => {
-    const open = reviewOpen()
-    if (previous === undefined || previous === open) return open
-
-    if (reviewFrame !== undefined) cancelAnimationFrame(reviewFrame)
-    setReviewSnap(true)
-    reviewFrame = requestAnimationFrame(() => {
-      reviewFrame = undefined
-      setReviewSnap(false)
-    })
-    return open
-  }, reviewOpen())
-  onCleanup(() => {
-    if (reviewFrame !== undefined) cancelAnimationFrame(reviewFrame)
+  const [motion, setMotion] = createStore({ gap: panelLayout().stacked, closing: false })
+  createEffect((previous) => {
+    const stacked = panelLayout().stacked
+    if (previous !== stacked) setMotion({ gap: stacked, closing: !stacked })
+    return stacked
+  }, panelLayout().stacked)
+  const sideRegionOpen = createMemo(() => reviewPanelOpen() || fileTreeOpen())
+  const terminalPane = createMemo(() =>
+    Math.min(layout.terminal.height(), typeof window === "undefined" ? 600 : window.innerHeight * 0.6),
+  )
+  const terminalPaneHeight = createMemo(() => `${terminalPane()}px`)
+  const sideHeight = createMemo(() => rowSize.height)
+  const fullSideHeight = createMemo(() => (sideHeight() === undefined ? "100%" : `${sideHeight()}px`))
+  const stackedReviewHeight = createMemo(() => {
+    const height = sideHeight()
+    if (height === undefined) return `calc(100% - ${terminalPaneHeight()} - 8px)`
+    return `${Math.max(0, height - terminalPane() - 8)}px`
  })
-
+  const sideContentWidth = createMemo<string>((previous) => {
+    const width = available()
+    if (resizable() && width !== undefined) return `${Math.max(0, width - resizedWidth())}px`
+    if (fileTreeOpen()) return `${layout.fileTree.width()}px`
+    return previous
+  }, "100%")
  return {
    centered: createMemo(() => session.isDesktop()),
    files: { open: fileTreeOpen },
@@ -99,14 +104,36 @@ export function createSessionScreenLayout(session: SessionModel, serverScope: st
    review: {
      open: reviewOpen,
      panelOpen: reviewPanelOpen,
-      snap: reviewSnap,
    },
-    side: { layout: panelLayout },
+    side: {
+      contentWidth: sideContentWidth,
+      gap: {
+        closing: () => motion.closing,
+        height: createMemo(() => (motion.gap ? "8px" : "0px")),
+      },
+      layout: panelLayout,
+      region: {
+        height: createMemo(() => {
+          if (!sideRegionOpen()) return "0px"
+          if (sideTerminalOpen()) return stackedReviewHeight()
+          return fullSideHeight()
+        }),
+        open: sideRegionOpen,
+      },
+      terminal: {
+        contentHeight: createMemo(() => (sideRegionOpen() ? terminalPaneHeight() : fullSideHeight())),
+        height: createMemo(() => {
+          if (!sideTerminalOpen()) return "0px"
+          if (sideRegionOpen()) return terminalPaneHeight()
+          return fullSideHeight()
+        }),
+      },
+    },
    size,
    terminal: {
-      bottomOpen: bottomTerminalOpen,
-      inlineOnlyOpen: createMemo(() => sideTerminalOpen() && !reviewPanelOpen()),
+      bottom: bottomTerminal,
      open: terminalOpen,
+      side: sideTerminal,
    },
  }
 }
@@ -1,5 +1,6 @@
 import { ErrorBoundary, Show, Match, Switch, createMemo, createEffect, createComputed, on } from "solid-js"
 import { createStore } from "solid-js/store"
+import createPresence from "solid-presence"
 import { ResizeHandle } from "@opencode-ai/ui/resize-handle"
 import { SessionHeader } from "@/session/header/session-header"
 import { useLayout } from "@/shell/state/layout"
@@ -28,7 +29,42 @@ export function SessionScreen(props: { session: SessionModel }) {
  const screen = createSessionScreenLayout(session, serverSDK.scope)
  const timeline = createSessionTimelineInteraction(session)
  const messagesReady = timeline.ready
-  const [store, setStore] = createStore({ deferRender: false })
+  const [store, setStore] = createStore({
+    deferRender: false,
+    bottomTerminalCached: false,
+    sideHeightMotion: false,
+    sideRegionPresent: false,
+    sideReviewPresent: false,
+    sideTerminalPresent: false,
+  })
+  const [elements, setElements] = createStore<{
+    side?: HTMLDivElement
+    bottomTerminal?: HTMLDivElement
+  }>({})
+  const sideVisible = createMemo(() => isDesktop() && screen.side.layout().visible)
+  const sideTerminalVisible = createMemo(() => isDesktop() && screen.terminal.side() && screen.terminal.open())
+  const bottomTerminalVisible = createMemo(() => screen.terminal.open() && (!isDesktop() || screen.terminal.bottom()))
+  const sidePresence = createPresence({
+    show: sideVisible,
+    element: () => elements.side ?? null,
+  })
+  const bottomTerminalPresence = createPresence({
+    show: bottomTerminalVisible,
+    element: () => elements.bottomTerminal ?? null,
+  })
+  createEffect(() => {
+    if (sideTerminalVisible()) setStore("sideTerminalPresent", true)
+    if (bottomTerminalVisible()) setStore("bottomTerminalCached", true)
+    if (!sideVisible()) setStore("sideHeightMotion", false)
+  })
+  createEffect(() => {
+    if (!isDesktop() || screen.terminal.bottom()) setStore("sideTerminalPresent", false)
+    if (isDesktop() && screen.terminal.side()) setStore("bottomTerminalCached", false)
+  })
+  createEffect(() => {
+    if (screen.side.region.open()) setStore("sideRegionPresent", true)
+    if (screen.review.panelOpen()) setStore("sideReviewPresent", true)
+  })

  createComputed((prev) => {
    const key = session.identity.sessionKey()
@@ -75,15 +111,9 @@ export function SessionScreen(props: { session: SessionModel }) {
          </Match>
          <Match when={session.identity.params.id}>
            <Show when={!messagesReady()}>
-              <SessionIdentityHeader
-                sessionID={session.identity.params.id ?? ""}
-                session={session.data.info()}
-              />
+              <SessionIdentityHeader sessionID={session.identity.params.id ?? ""} session={session.data.info()} />
            </Show>
-            <Show
-              when={messagesReady() ? session.identity.params.id : undefined}
-              keyed
-            >
+            <Show when={messagesReady() ? session.identity.params.id : undefined} keyed>
              {(_id) => (
                <MessageTimeline
                  session={session}
@@ -135,13 +165,14 @@ export function SessionScreen(props: { session: SessionModel }) {
    <>
      <SessionHeader />
      <div class="flex-1 min-h-0 flex flex-col gap-2 p-2">
-        <div ref={screen.panel.ref} class="flex-1 min-h-0 flex flex-col md:flex-row gap-2">
+        <div ref={screen.panel.ref} class="relative flex-1 min-h-0 flex flex-col md:flex-row gap-2">
          <div
            classList={{
-              "@container relative shrink-0 flex flex-col min-h-0 h-full flex-1 md:flex-none transition-[width]": true,
+              "@container relative z-10 shrink-0 flex flex-col min-h-0 h-full flex-1 md:flex-none transition-[width]": true,
              "duration-[240ms] ease-[cubic-bezier(0.22,1,0.36,1)] will-change-[width] motion-reduce:transition-none":
-                !screen.size.active() && !screen.review.snap() && !screen.terminal.inlineOnlyOpen(),
+                !screen.size.active(),
            }}
+            data-slot="session-chat-panel"
            style={{
              width: screen.panel.width(),
            }}
@@ -171,51 +202,125 @@ export function SessionScreen(props: { session: SessionModel }) {
            </Show>
          </div>

-          <Show when={isDesktop() && screen.side.layout().visible}>
-            <div class="min-w-0 h-full flex flex-1 flex-col">
-              <Show when={screen.review.panelOpen() || screen.files.open()}>
-                <div class="min-h-0 flex-1">
-                  <SessionDesktopReview review={review} />
-                </div>
-              </Show>
-              <Show when={screen.side.layout().stacked}>
-                <div class="relative h-2 shrink-0" onPointerDown={() => screen.size.start()}>
-                  <ResizeHandle
-                    class="!relative !inset-auto !h-full !w-full !transform-none"
-                    direction="vertical"
-                    size={layout.terminal.height()}
-                    min={100}
-                    max={typeof window === "undefined" ? 600 : window.innerHeight * 0.6}
-                    collapseThreshold={50}
-                    onResize={(height) => {
-                      screen.size.touch()
-                      layout.terminal.resize(height)
-                    }}
-                    onCollapse={() => session.layout.view().terminal.close()}
-                  />
-                </div>
-              </Show>
-              <Show when={screen.terminal.open() && !screen.terminal.bottomOpen()}>
+          <Show when={sidePresence.present() || store.sideTerminalPresent}>
+            <div
+              ref={(element) => setElements("side", element)}
+              data-slot="session-side-panel-presence"
+              data-opened={sideVisible()}
+              onAnimationEnd={(event) => {
+                if (event.currentTarget !== event.target) return
+                if (event.animationName !== "terminal-panel-presence-in" || !sideVisible()) return
+                setStore("sideHeightMotion", true)
+              }}
+              classList={{
+                "relative z-0 min-w-0 h-full flex-1 overflow-visible": sidePresence.present(),
+                "absolute inset-y-0 end-0 z-0 w-0 invisible pointer-events-none overflow-visible":
+                  !sidePresence.present(),
+              }}
+            >
+              <div
+                data-slot="session-side-panel-content"
+                class="absolute inset-y-0 start-0 h-full"
+                style={{ width: screen.side.contentWidth() }}
+              >
                <div
+                  data-slot="session-side-region"
                  classList={{
-                    "min-h-0 shrink-0": screen.side.layout().stacked,
-                    "min-h-0 flex-1": !screen.side.layout().stacked,
+                    "absolute inset-x-0 top-0 min-h-0 overflow-visible transition-[height] duration-[240ms] ease-[cubic-bezier(0.22,1,0.36,1)] motion-reduce:transition-none": true,
+                    "will-change-[height]": !screen.size.active() && store.sideHeightMotion,
+                    "transition-none": screen.size.active() || !store.sideHeightMotion,
                  }}
+                  style={{ height: screen.side.region.height() }}
                >
-                  <TerminalPanel stacked={screen.side.layout().stacked} />
+                  <Show when={store.sideRegionPresent}>
+                    <div
+                      data-slot="session-side-region-presence"
+                      data-opened={screen.side.region.open()}
+                      class="absolute inset-0"
+                      onAnimationEnd={(event) => {
+                        if (event.currentTarget !== event.target) return
+                        if (event.animationName !== "side-region-presence-out") return
+                        if (screen.side.region.open()) return
+                        if (sideTerminalVisible()) return
+                        setStore("sideRegionPresent", false)
+                        setStore("sideReviewPresent", false)
+                      }}
+                    >
+                      <SessionDesktopReview review={review} present={store.sideReviewPresent} />
+                    </div>
+                  </Show>
                </div>
-              </Show>
+                <div class="absolute inset-x-0 bottom-0 flex flex-col">
+                  <div
+                    data-slot="session-side-panel-gap"
+                    classList={{
+                      "relative z-0 shrink-0 overflow-visible bg-v2-background-bg-deep transition-[height] duration-[40ms] ease-[cubic-bezier(0.22,1,0.36,1)] motion-reduce:transition-none": true,
+                      "delay-0": !screen.side.gap.closing(),
+                      "delay-[200ms]": screen.side.gap.closing(),
+                    }}
+                    style={{ height: screen.side.gap.height() }}
+                    onPointerDown={() => screen.size.start()}
+                  >
+                    <Show when={screen.side.layout().stacked}>
+                      <ResizeHandle
+                        class="!relative !inset-auto !h-full !w-full !transform-none"
+                        direction="vertical"
+                        size={layout.terminal.height()}
+                        min={100}
+                        max={typeof window === "undefined" ? 600 : window.innerHeight * 0.6}
+                        collapseThreshold={50}
+                        onResize={(height) => {
+                          screen.size.touch()
+                          layout.terminal.resize(height)
+                        }}
+                        onCollapse={() => session.layout.view().terminal.close()}
+                      />
+                    </Show>
+                  </div>
+                  <div
+                    data-slot="session-side-terminal-region"
+                    classList={{
+                      "relative z-10 min-h-0 shrink-0 overflow-visible transition-[height] duration-[240ms] ease-[cubic-bezier(0.22,1,0.36,1)] motion-reduce:transition-none": true,
+                      "will-change-[height]": !screen.size.active() && store.sideHeightMotion,
+                      "transition-none": screen.size.active() || !store.sideHeightMotion,
+                    }}
+                    style={{ height: screen.side.terminal.height() }}
+                  >
+                    <Show when={store.sideTerminalPresent}>
+                      <div
+                        data-slot="side-terminal-panel-presence"
+                        data-opened={sideTerminalVisible()}
+                        class="absolute inset-0 rounded-[10px] bg-v2-background-bg-base shadow-[var(--v2-elevation-raised)]"
+                      >
+                        <div data-slot="side-terminal-panel-clip" class="size-full overflow-clip rounded-[10px]">
+                          <TerminalPanel
+                            fill
+                            framed={false}
+                            present={store.sideTerminalPresent}
+                            contentHeight={screen.side.terminal.contentHeight()}
+                          />
+                        </div>
+                      </div>
+                    </Show>
+                  </div>
+                </div>
+              </div>
            </div>
          </Show>
        </div>

-        <Show when={screen.terminal.open() && (!isDesktop() || screen.terminal.bottomOpen())}>
-          <div classList={{ "relative min-h-0 shrink-0": isDesktop() }}>
+        <Show when={bottomTerminalPresence.present() || store.bottomTerminalCached}>
+          <div
+            ref={(element) => setElements("bottomTerminal", element)}
+            data-slot="terminal-panel-presence"
+            data-opened={bottomTerminalVisible()}
+            classList={{
+              hidden: !bottomTerminalPresence.present(),
+              "relative min-h-0 shrink-0": isDesktop(),
+            }}
+          >
            <Show when={isDesktop()}>
-              <div
-                class="absolute z-10 -top-1 left-0 right-0 h-2"
-                onPointerDown={() => screen.size.start()}
-              >
+              <div class="absolute z-10 -top-1 left-0 right-0 h-2" onPointerDown={() => screen.size.start()}>
                <ResizeHandle
                  class="!relative !inset-auto !h-full !w-full !transform-none"
                  direction="vertical"
@@ -231,7 +336,7 @@ export function SessionScreen(props: { session: SessionModel }) {
                />
              </div>
            </Show>
-            <TerminalPanel stacked={isDesktop()} />
+            <TerminalPanel stacked={isDesktop()} present={store.bottomTerminalCached} />
          </div>
        </Show>
      </div>
@@ -18,7 +18,7 @@ import { Terminal } from "@/session/terminal/terminal"
 import { useCommand } from "@/shell/commands/command"
 import { useLanguage } from "@/runtime/i18n/language"
 import { useLayout } from "@/shell/state/layout"
-import { useTerminal } from "@/session/terminal/context"
+import { useTerminal, type LocalPTY } from "@/session/terminal/context"
 import { useWorkspaceLocation } from "@/workspaces/location"
 import { terminalTabLabel } from "@/session/terminal/terminal-label"
 import { createSizing, focusTerminalById } from "@/session/helpers"
@@ -26,7 +26,20 @@ import { getTerminalHandoff, setTerminalHandoff } from "@/session/handoff"
 import { useSessionLayout } from "@/session/session-layout"
 import { TerminalSurface } from "./surface"

-export function TerminalPanel(props: { stacked?: boolean } = {}) {
+const MAX_CACHED_TERMINAL_WORKSPACES = 20
+
+type TerminalBinding = ReturnType<ReturnType<typeof useTerminal>["bind"]>
+type CachedTerminalSurface = {
+  key: string
+  workspace: string
+  pty: LocalPTY
+  ops: TerminalBinding
+  focus: boolean
+}
+
+export function TerminalPanel(
+  props: { stacked?: boolean; fill?: boolean; framed?: boolean; present?: boolean; contentHeight?: string } = {},
+) {
  const layout = useLayout()
  const terminal = useTerminal()
  const sdk = useWorkspaceLocation()
@@ -45,18 +58,26 @@ export function TerminalPanel(props: { stacked?: boolean } = {}) {
  onCleanup(() => terminal.cancelFocus())

  const [store, setStore] = createStore({
-    autoCreated: false,
+    autoCreated: undefined as string | undefined,
    recovered: {} as Record<string, boolean>,
+    surfaces: [] as CachedTerminalSurface[],
+    workspaces: [] as string[],
    view: typeof window === "undefined" ? 1000 : (window.visualViewport?.height ?? window.innerHeight),
  })

  const max = () => store.view * 0.6
  const pane = () => Math.min(height(), max())
  const stacked = createMemo(() => isDesktop() && !!props.stacked)
-  const panelHeight = createMemo(() =>
-    isDesktop() ? (stacked() ? `${pane()}px` : "100%") : opened() ? `${pane()}px` : "0px",
+  const panelHeight = createMemo(() => {
+    if (props.fill) return "100%"
+    if (!opened()) return "0px"
+    if (isDesktop()) return stacked() ? `${pane()}px` : "100%"
+    return `${pane()}px`
+  })
+  const contentHeight = createMemo(
+    () => props.contentHeight ?? (isDesktop() ? (stacked() ? `${pane()}px` : "100%") : `${pane()}px`),
  )
-  const contentHeight = createMemo(() => (isDesktop() ? (stacked() ? `${pane()}px` : "100%") : `${pane()}px`))
+  const present = createMemo(() => opened() || !!props.present)
  const newTerminalKeybind = createMemo(() => command.keybindParts("terminal.new"))

  onMount(() => {
@@ -68,24 +89,29 @@ export function TerminalPanel(props: { stacked?: boolean } = {}) {
    sync()
    makeEventListener(window, "resize", sync)
    if (port) makeEventListener(port, "resize", sync)
+    makeEventListener(document, "focusin", (event) => {
+      if (event.target instanceof Element && event.target.closest("#terminal-panel")) return
+      setStore("surfaces", (surface) => surface.focus, "focus", false)
+    })
  })

  createEffect(() => {
    if (!opened()) {
-      setStore("autoCreated", false)
+      setStore("autoCreated", undefined)
      return
    }

-    if (!terminal.ready() || terminal.all().length !== 0 || store.autoCreated) return
+    const workspace = workspaceKey()
+    if (!terminal.ready() || terminal.all().length !== 0 || store.autoCreated === workspace) return
    terminal.new()
-    setStore("autoCreated", true)
+    setStore("autoCreated", workspace)
  })

  createEffect(
    on(
-      () => terminal.all().length,
-      (count, prevCount) => {
-        if (prevCount === undefined || prevCount <= 0 || count !== 0) return
+      () => [workspaceKey(), terminal.all().length] as const,
+      ([workspace, count], previous) => {
+        if (!previous || previous[0] !== workspace || previous[1] <= 0 || count !== 0) return
        if (!opened()) return
        close()
      },
@@ -97,7 +123,10 @@ export function TerminalPanel(props: { stacked?: boolean } = {}) {
      () => [opened(), terminal.active(), terminal.focusRequested(terminal.active())] as const,
      ([next, id, requested]) => {
        if (!next || !id || !requested) return
-        focusTerminalById(id)
+        requestAnimationFrame(() => {
+          if (!opened() || terminal.active() !== id || !terminal.focusRequested(id)) return
+          focusTerminalById(id)
+        })
      },
    ),
  )
@@ -136,19 +165,44 @@ export function TerminalPanel(props: { stacked?: boolean } = {}) {

  const all = terminal.all

+  createEffect(
+    on(
+      () => [workspaceKey(), terminal.ready(), terminal.active(), terminal.all()] as const,
+      ([workspace, ready, active, ptys]) => {
+        if (!ready) return
+
+        const ids = new Set(ptys.map((pty) => pty.id))
+        const surfaces = store.surfaces.filter((surface) => surface.workspace !== workspace || ids.has(surface.pty.id))
+        const pty = ptys.find((item) => item.id === active)
+        const key = pty ? `${workspace}\0${pty.id}` : undefined
+        if (pty && key && !surfaces.some((surface) => surface.key === key)) {
+          surfaces.push({ key, workspace, pty, ops: terminal.bind(), focus: terminal.focusRequested(pty.id) })
+        }
+
+        const workspaces = [...store.workspaces.filter((item) => item !== workspace), workspace].slice(
+          -MAX_CACHED_TERMINAL_WORKSPACES,
+        )
+        const keep = new Set(workspaces)
+        setStore({ surfaces: surfaces.filter((surface) => keep.has(surface.workspace)), workspaces })
+      },
+    ),
+  )
+
  const recoverTerminal = (key: string, id: string, clone: (id: string) => Promise<void>) => {
    if (store.recovered[key]) return
    setStore("recovered", key, true)
    void clone(id)
  }

-  const terminalRecoveryKey = (pty: { id: string; title: string; titleNumber: number }) => {
-    return String(pty.titleNumber || pty.title || pty.id)
-  }
-
  const markTerminalConnected = (key: string, id: string, trim: (id: string) => void) => {
    setStore("recovered", key, false)
    trim(id)
+    const index = store.surfaces.findIndex((surface) => surface.key === key)
+    if (!store.surfaces[index]?.focus) return
+    setStore("surfaces", index, "focus", false)
+    if (!opened() || terminal.active() !== id) return
+    focusTerminalById(id)
+    terminal.consumeFocus(id)
  }

  const handleTerminalDragEnd = () => {
@@ -167,6 +221,8 @@ export function TerminalPanel(props: { stacked?: boolean } = {}) {
      }}
      label={language.t("terminal.title")}
      opened={opened()}
+      present={present()}
+      framed={props.framed}
      desktop={isDesktop()}
      stacked={stacked()}
      height={panelHeight()}
@@ -182,7 +238,7 @@ export function TerminalPanel(props: { stacked?: boolean } = {}) {
      onCollapse={close}
    >
      <Show
-        when={terminal.ready()}
+        when={terminal.ready() || store.surfaces.length > 0}
        fallback={
          <div class="flex flex-col h-full pointer-events-none">
            <div class="h-10 flex items-center gap-2 px-2 border-b border-border-weaker-base bg-v2-background-bg-base overflow-hidden">
@@ -268,34 +324,35 @@ export function TerminalPanel(props: { stacked?: boolean } = {}) {
              </Tabs.List>
            </Tabs>
            <div class="flex-1 min-h-0 relative">
-              <Show when={opened() && terminal.active()} keyed>
-                {(id) => {
-                  const ops = terminal.bind()
-                  return (
-                    <Show when={all().find((pty) => pty.id === id)}>
-                      {(pty) => (
-                        <div id={`terminal-wrapper-${id}`} class="absolute inset-0">
-                          <Terminal
-                            pty={pty()}
-                            autoFocus={terminal.focusRequested(id)}
-                            onAutoFocus={() => terminal.consumeFocus(id)}
-                            class="!px-[14px]"
-                            onConnect={() =>
-                              markTerminalConnected(terminalRecoveryKey(pty()), id, (terminalID) =>
-                                ops.trim(terminalID),
-                              )
-                            }
-                            onCleanup={(terminal) => ops.update(terminal)}
-                            onConnectError={() =>
-                              recoverTerminal(terminalRecoveryKey(pty()), id, (terminalID) => ops.clone(terminalID))
-                            }
-                          />
-                        </div>
-                      )}
-                    </Show>
-                  )
-                }}
-              </Show>
+              <For each={store.surfaces}>
+                {(surface) => (
+                  <div
+                    id={`terminal-wrapper-${surface.pty.id}`}
+                    class="absolute inset-0"
+                    classList={{
+                      hidden:
+                        !present() || surface.workspace !== workspaceKey() || surface.pty.id !== terminal.active(),
+                    }}
+                  >
+                    <Terminal
+                      pty={surface.pty}
+                      autoFocus={terminal.focusRequested(surface.pty.id)}
+                      onAutoFocus={() => {
+                        focusTerminalById(surface.pty.id)
+                        terminal.consumeFocus(surface.pty.id)
+                      }}
+                      class="!px-[14px]"
+                      onConnect={() =>
+                        markTerminalConnected(surface.key, surface.pty.id, (terminalID) => surface.ops.trim(terminalID))
+                      }
+                      onCleanup={(terminal) => surface.ops.update(terminal)}
+                      onConnectError={() =>
+                        recoverTerminal(surface.key, surface.pty.id, (terminalID) => surface.ops.clone(terminalID))
+                      }
+                    />
+                  </div>
+                )}
+              </For>
            </div>
          </div>
        </DragDropProvider>
@@ -5,6 +5,8 @@ export function TerminalSurface(
  props: ParentProps<{
    label: string
    opened: boolean
+    present?: boolean
+    framed?: boolean
    desktop: boolean
    stacked: boolean
    height: string
@@ -22,6 +24,9 @@ export function TerminalSurface(
    <aside
      ref={props.ref}
      id="terminal-panel"
+      data-component="terminal-panel"
+      data-opened={props.opened}
+      data-size-animated={!props.resizing && (!props.desktop || props.stacked)}
      role="region"
      aria-label={props.label}
      aria-hidden={!props.opened}
@@ -29,13 +34,12 @@ export function TerminalSurface(
      class="relative shrink-0 overflow-hidden bg-v2-background-bg-base"
      classList={{
        "w-full": !props.desktop || props.stacked,
-        "min-w-0 h-full flex-1": props.desktop && props.opened && !props.stacked,
-        "w-0 h-full pointer-events-none": props.desktop && !props.opened,
-        "rounded-[10px] shadow-[var(--v2-elevation-raised)]": props.desktop,
-        "transition-[height] duration-200 ease-[cubic-bezier(0.22,1,0.36,1)] will-change-[height] motion-reduce:transition-none":
-          !props.desktop && !props.resizing,
+        "min-w-0 h-full flex-1": props.desktop && (props.present ?? props.opened) && !props.stacked,
+        "w-0 h-full pointer-events-none": props.desktop && !(props.present ?? props.opened),
+        "rounded-[10px] shadow-[var(--v2-elevation-raised)]": props.desktop && (props.framed ?? true),
+        "will-change-[height]": !props.resizing && (!props.desktop || props.stacked),
      }}
-      style={{ height: props.height }}
+      style={{ height: props.height, "--terminal-panel-height": props.contentHeight }}
    >
      <div classList={{ "md:hidden": !props.stacked, hidden: props.stacked }} onPointerDown={props.onResizeStart}>
        <ResizeHandle
@@ -50,7 +54,8 @@ export function TerminalSurface(
        />
      </div>
      <div
-        class="absolute inset-0 flex flex-col overflow-hidden"
+        data-slot="terminal-panel-content"
+        class="absolute inset-x-0 top-0 flex flex-col overflow-hidden"
        classList={{
          "border-t border-border-weak-base": props.opened && !props.desktop,
          "pointer-events-none": !props.opened,
@@ -347,9 +347,9 @@ export const Terminal = (props: TerminalProps) => {
  const focusTerminal = () => {
    const t = term
    if (!t) return
-    t.focus()
-    t.textarea?.focus()
-    setTimeout(() => t.textarea?.focus(), 0)
+    const focus = () => (t.textarea ? t.textarea.focus({ preventScroll: true }) : t.focus())
+    focus()
+    setTimeout(focus, 0)
  }
  const handlePointerDown = () => {
    const activeElement = document.activeElement
@@ -499,7 +499,7 @@ function MessageTimelineView(
            data-component="session-background-hint-row"
            classList={{
              "min-w-0 w-full max-w-full": true,
-              "md:max-w-200 2xl:max-w-[1000px] md:mx-auto": props.centered,
+              "md:max-w-[1000px] md:mx-auto": props.centered,
            }}
          >
            <div
@@ -9,7 +9,7 @@ import { type LocalProject } from "@/shell/state/layout"
 import { ServerConnection } from "@/runtime/server/registry"

 export function createEditProjectModel(props: { project: LocalProject; server: ServerConnection.Any }) {
-  const supported = true
+  const supported = !props.project.id || props.project.id === "global"
  const dialog = useDialog()
  const global = useGlobal()
  const serverCtx = createMemo(() => global.ensureServerCtx(props.server))
@@ -72,18 +72,9 @@ export function createEditProjectModel(props: { project: LocalProject; server: S
      const start = store.startup.trim()

      if (props.project.id && props.project.id !== "global") {
-        const project = await serverCtx().sdk.api.project.update({
-          projectID: props.project.id,
-          name,
-          icon: { color: store.color || "", override: store.iconOverride || "" },
-          commands: { start },
-        })
-        serverCtx().sync.set("project", (items) =>
-          items.map((item) => (item.id === project.id ? normalizeProjectInfo(project) : item)),
-        )
-        serverCtx().sync.project.icon(props.project.worktree, store.iconOverride || undefined)
-        dialog.close()
-        return
+        // TODO: Restore project edits when the V2 client exposes a project update API.
+        // await serverCtx().sdk.api.project.update({ projectID: props.project.id, name, icon, commands })
+        throw new Error(`Project ${props.project.id} cannot be updated`)
      }

      serverCtx().sync.project.meta(props.project.worktree, {
@@ -1,6 +1,7 @@
 import { DataProvider } from "@opencode-ai/session-ui/context"
 import { useNavigate, useParams } from "@solidjs/router"
 import { createMemo, type ParentProps } from "solid-js"
+import { useProviders } from "@/providers/catalog/providers"
 import { LocalProvider } from "@/providers/models/selection"
 import type { ServerConnection } from "@/runtime/server/registry"
 import { sessionHref } from "@/shell/routes/session"
@@ -30,7 +31,11 @@ export function SessionUIProvider(
    await data.session.sync(sessionID).catch(() => undefined)
    navigate(href(sessionID))
  }
+  const providers = useProviders(directory)
  const sessionUIData = createMemo(() => ({
+    provider: providers.ready()
+      ? { all: providers.all(), default: providers.default(), connected: providers.connected().map((item) => item.id) }
+      : undefined,
    session: data.session.list(),
    session_status: Object.fromEntries(
      data.session
@@ -225,20 +225,23 @@ export const { use: useFile, provider: FileProvider } = createSimpleContext({
          },
        )

-    const stop = sdk().event.on("filesystem.changed", (event) => {
-      invalidateFromWatcher(event, {
-        normalize: path.normalize,
-        hasFile: (file) => Boolean(store.file[file]),
-        isOpen: (file) => tabs.all().some((tab) => path.pathFromTab(tab) === file),
-        loadFile: (file) => {
-          void load(file, { force: true })
-        },
-        node: tree.node,
-        isDirLoaded: tree.isLoaded,
-        refreshDir: (dir) => {
-          void tree.listDir(dir, { force: true })
-        },
+    createEffect(() => {
+      const stop = sdk().event.on("filesystem.changed", (event) => {
+        invalidateFromWatcher(event, {
+          normalize: path.normalize,
+          hasFile: (file) => Boolean(store.file[file]),
+          isOpen: (file) => tabs.all().some((tab) => path.pathFromTab(tab) === file),
+          loadFile: (file) => {
+            void load(file, { force: true })
+          },
+          node: tree.node,
+          isDirLoaded: tree.isLoaded,
+          refreshDir: (dir) => {
+            void tree.listDir(dir, { force: true })
+          },
+        })
      })
+      onCleanup(stop)
    })

    const get = (input: string) => {
@@ -266,7 +269,6 @@ export const { use: useFile, provider: FileProvider } = createSimpleContext({
      withPath(input, (file) => view().setSelectedLines(file, range))

    onCleanup(() => {
-      stop()
      viewCache.clear()
    })

@@ -185,7 +185,11 @@ async function compileExecutable(item: (typeof allTargets)[number]) {
    headers: { Accept: "application/octet-stream", ...(token ? { Authorization: `Bearer ${token}` } : {}) },
  })
  if (!response.ok) throw new Error(`Failed to download ${name} from Bun release ${release}: ${response.status}`)
-  await Bun.write(archive, response)
+  // Stream to disk instead of `Bun.write(archive, response)`: passing the Response object
+  // hangs forever if it gets GC'd mid-download (https://github.com/oven-sh/bun/issues/40278).
+  const sink = Bun.file(archive).writer()
+  for await (const chunk of response.body!) await sink.write(chunk)
+  await sink.end()
  await $`unzip -oq ${archive} -d ${cache}`
  await rm(archive)
  return executable
@@ -37,7 +37,7 @@
    "@opencode-ai/protocol": "workspace:*"
  },
  "peerDependencies": {
-    "effect": "4.0.0-rc.110",
+    "effect": "4.0.0-rc.111",
    "solid-js": ">=1.9.0"
  },
  "peerDependenciesMeta": {
@@ -1291,15 +1291,6 @@ export interface CredentialApi<E = never> {
 export type ProjectListOutput = ReadonlyArray<Project.Info>
 export type ProjectListOperation<E = never> = () => Effect.Effect<ProjectListOutput, E>

-export type ProjectUpdateInput = {
-  readonly projectID: Project.ID
-  readonly name?: string | undefined
-  readonly icon?: Project.Icon | undefined
-  readonly commands?: Project.Commands | undefined
-}
-export type ProjectUpdateOutput = Project.Info
-export type ProjectUpdateOperation<E = never> = (input: ProjectUpdateInput) => Effect.Effect<ProjectUpdateOutput, E>
-
 export type ProjectCurrentInput = {
  readonly location?: { readonly directory?: string | undefined; readonly workspace?: string | undefined } | undefined
 }
@@ -1308,7 +1299,6 @@ export type ProjectCurrentOperation<E = never> = (input?: ProjectCurrentInput) =

 export interface ProjectApi<E = never> {
  readonly list: ProjectListOperation<E>
-  readonly update: ProjectUpdateOperation<E>
  readonly current: ProjectCurrentOperation<E>
 }

@@ -139,8 +139,6 @@ import type {
  CredentialRemoveInput,
  CredentialRemoveOutput,
  ProjectListOutput,
-  ProjectUpdateInput,
-  ProjectUpdateOutput,
  ProjectCurrentInput,
  ProjectCurrentOutput,
  FormRequestListInput,
@@ -921,14 +919,6 @@ const adaptGroupCredential = (raw: RawClient["server.credential"]) => ({
 const EndpointProjectList = (raw: RawClient["server.project"]) => () =>
  preserveEffect<ProjectListOutput>()(raw["project.list"]({}).pipe(Effect.mapError(mapClientError)))

-const EndpointProjectUpdate = (raw: RawClient["server.project"]) => (input: ProjectUpdateInput) =>
-  preserveEffect<ProjectUpdateOutput>()(
-    raw["project.update"]({
-      params: { projectID: input["projectID"] },
-      payload: { name: input["name"], icon: input["icon"], commands: input["commands"] },
-    }).pipe(Effect.mapError(mapClientError)),
-  )
-
 const EndpointProjectCurrent = (raw: RawClient["server.project"]) => (input?: ProjectCurrentInput) =>
  preserveEffect<ProjectCurrentOutput>()(
    raw["project.current"]({ query: { location: input?.["location"] } }).pipe(Effect.mapError(mapClientError)),
@@ -936,7 +926,6 @@ const EndpointProjectCurrent = (raw: RawClient["server.project"]) => (input?: Pr

 const adaptGroupProject = (raw: RawClient["server.project"]) => ({
  list: EndpointProjectList(raw),
-  update: EndpointProjectUpdate(raw),
  current: EndpointProjectCurrent(raw),
 })

@@ -133,8 +133,6 @@ import type {
  CredentialRemoveInput,
  CredentialRemoveOutput,
  ProjectListOutput,
-  ProjectUpdateInput,
-  ProjectUpdateOutput,
  ProjectCurrentInput,
  ProjectCurrentOutput,
  FormRequestListInput,
@@ -1253,18 +1251,6 @@ export function make(options: ClientOptions) {
          { method: "GET", path: `/api/project`, successStatus: 200, declaredStatuses: [401, 400], empty: false },
          requestOptions,
        ),
-      update: (input: ProjectUpdateInput, requestOptions?: RequestOptions) =>
-        request<ProjectUpdateOutput>(
-          {
-            method: "PATCH",
-            path: `/api/project/${encodeURIComponent(input.projectID)}`,
-            body: { name: input["name"], icon: input["icon"], commands: input["commands"] },
-            successStatus: 200,
-            declaredStatuses: [404, 401, 400],
-            empty: false,
-          },
-          requestOptions,
-        ),
      current: (input?: ProjectCurrentInput, requestOptions?: RequestOptions) =>
        request<ProjectCurrentOutput>(
          {
@@ -6,7 +6,9 @@
 import type {
  AgentInfo,
  CommandInfo,
+  FormCancelInput,
  FormInfo,
+  FormReplyInput,
  IntegrationInfo,
  LocationRef,
  LocationGetOutput,
@@ -37,7 +39,12 @@ import type {
 import { Worktree } from "@opencode-ai/schema/worktree"
 import { SessionID } from "@opencode-ai/schema/session-id"
 import { SessionMessage } from "@opencode-ai/schema/session-message"
-import { isPermissionNotFoundError, type SessionPromptInput } from "../promise"
+import {
+  isFormAlreadySettledError,
+  isFormNotFoundError,
+  isPermissionNotFoundError,
+  type SessionPromptInput,
+} from "../promise"
 import { createStore, produce, reconcile } from "solid-js/store"
 import type { SessionInbox } from "@opencode-ai/schema/session-inbox"
 import { batch, createEffect, createMemo, createSignal, onCleanup } from "solid-js"
@@ -120,6 +127,16 @@ function locationQuery(ref?: LocationRef) {
  return ref ? { directory: ref.directory, workspace: ref.workspaceID } : undefined
 }

+function formRequestOptions(sessionID: string, ref?: LocationRef) {
+  if (sessionID !== "global" || !ref) return undefined
+  return {
+    headers: {
+      "x-opencode-directory": encodeURIComponent(ref.directory),
+      ...(ref.workspaceID ? { "x-opencode-workspace": ref.workspaceID } : {}),
+    },
+  }
+}
+
 function createSync() {
  type Pending = { promise: Promise<void>; invalidated: boolean }
  const state = new Map<string, true | Pending>()
@@ -228,6 +245,32 @@ export function createData(config: CreateDataInput) {
    )
  }

+  function removeForm(sessionID: string, formID: string, ref?: LocationRef) {
+    const forms = store.session.form[sessionID]
+    if (!forms) return false
+    const location = ref && locationKey(ref)
+    const next = forms.filter((form) => {
+      if (form.id !== formID) return true
+      if (sessionID !== "global" || !location) return false
+      return !form.location || locationKey(form.location) !== location
+    })
+    if (next.length === forms.length) return false
+    setStore("session", "form", sessionID, next)
+    return true
+  }
+
+  function settleForm(input: FormCancelInput, ref: LocationRef | undefined, request: Promise<void>) {
+    return request
+      .catch((error: unknown) => {
+        if ((!isFormNotFoundError(error) && !isFormAlreadySettledError(error)) || error.id !== input.formID) throw error
+      })
+      .then(() => {
+        if (!removeForm(input.sessionID, input.formID, ref)) return
+        result.session.form.invalidate(input.sessionID, ref)
+        void result.session.form.sync(input.sessionID, ref).catch(() => undefined)
+      })
+  }
+
  function updatePending(sessionID: string, inboxID: string, delivery: SessionInbox.Delivery) {
    const index = store.session.pending[sessionID]?.findIndex((item) => item.id === inboxID) ?? -1
    const item = store.session.pending[sessionID]?.[index]
@@ -998,12 +1041,7 @@ export function createData(config: CreateDataInput) {
        return
      case "form.replied":
      case "form.cancelled":
-        setStore(
-          "session",
-          "form",
-          event.data.sessionID,
-          (store.session.form[event.data.sessionID] ?? []).filter((form) => form.id !== event.data.id),
-        )
+        removeForm(event.data.sessionID, event.data.id, event.location)
        return
    }

@@ -1420,6 +1458,12 @@ export function createData(config: CreateDataInput) {
            `session.form:${sessionID}:${sessionID === "global" ? locationKey(ref ?? defaultLocation()) : ""}`,
          )
        },
+        reply(input: FormReplyInput, ref?: LocationRef) {
+          return settleForm(input, ref, api().form.reply(input, formRequestOptions(input.sessionID, ref)))
+        },
+        cancel(input: FormCancelInput, ref?: LocationRef) {
+          return settleForm(input, ref, api().form.cancel(input, formRequestOptions(input.sessionID, ref)))
+        },
      },
    },
    project: {
@@ -2,20 +2,26 @@

 import { Script } from "@opencode-ai/script"
 import { $ } from "bun"
-import { rm } from "node:fs/promises"
+import { mkdtemp, rm } from "node:fs/promises"
+import { tmpdir } from "node:os"
+import { join } from "node:path"
 import { fileURLToPath } from "node:url"

 process.chdir(fileURLToPath(new URL("..", import.meta.url)))

+const dryRun = Bun.argv.includes("--dry-run")
 const originalText = await Bun.file("package.json").text()
 const pkg = JSON.parse(originalText) as {
  name: string
  version: string
  exports: Record<string, string | { import: string; types: string }>
+  imports: Record<string, Record<string, string>>
 }
 const tarball = `${pkg.name.replace("@", "").replace("/", "-")}-${pkg.version}.tgz`
+const output = (value: string, types = false) =>
+  value.replace("./src/", "./dist/").replace(/\.ts$/, types ? ".d.ts" : ".js")

-if ((await $`npm view ${pkg.name}@${pkg.version} version`.nothrow()).exitCode === 0) {
+if (!dryRun && (await $`npm view ${pkg.name}@${pkg.version} version`.nothrow()).exitCode === 0) {
  console.log(`already published ${pkg.name}@${pkg.version}`)
  process.exit(0)
 }
@@ -29,16 +35,38 @@ try {
      return [
        key,
        {
-          import: value.replace("./src/", "./dist/").replace(/\.ts$/, ".js"),
-          types: value.replace("./src/", "./dist/").replace(/\.ts$/, ".d.ts"),
+          import: output(value),
+          types: output(value, true),
        },
      ]
    }),
  )
+  pkg.imports = Object.fromEntries(
+    Object.entries(pkg.imports).map(([key, conditions]) => [
+      key,
+      Object.fromEntries(Object.entries(conditions).map(([condition, value]) => [condition, output(value)])),
+    ]),
+  )
  await Bun.write("package.json", JSON.stringify(pkg, null, 2) + "\n")
  await rm(tarball, { force: true })
  await $`bun pm pack`
-  await $`npm publish ${tarball} --tag ${Script.channel} --access public`
+  const consumer = await mkdtemp(join(tmpdir(), "opencode-codemode-"))
+  try {
+    await Bun.write(
+      join(consumer, "package.json"),
+      JSON.stringify({
+        private: true,
+        type: "module",
+        dependencies: { [pkg.name]: `file:${join(process.cwd(), tarball)}` },
+      }),
+    )
+    await $`npm install --ignore-scripts --no-audit --no-fund`.cwd(consumer)
+    await $`node --input-type=module -e ${`await import(${JSON.stringify(pkg.name)})`}`.cwd(consumer)
+    await $`bun --conditions=workerd -e ${`await import(${JSON.stringify(pkg.name)})`}`.cwd(consumer)
+  } finally {
+    await rm(consumer, { recursive: true, force: true })
+  }
+  if (!dryRun) await $`npm publish ${tarball} --tag ${Script.channel} --access public`
 } finally {
  await Bun.write("package.json", originalText)
  await rm(tarball, { force: true })
@@ -3,7 +3,6 @@ import { defineConfig } from "drizzle-kit"

 export default defineConfig({
  out: "./migrations/",
-  strict: true,
  schema: ["./src/**/*.sql.ts"],
  verbose: true,
  dialect: "mysql",
@@ -3,19 +3,11 @@ import { Resource } from "@opencode-ai/console-resource"
 export * from "drizzle-orm"
 import { Client } from "@planetscale/database"

-import { MySqlTransaction, type MySqlTransactionConfig } from "drizzle-orm/mysql-core"
-import type { PlanetScalePreparedQueryHKT, PlanetscaleQueryResultHKT } from "drizzle-orm/planetscale-serverless"
+import type { MySqlTransactionConfig } from "drizzle-orm/mysql-core"
 import { Context } from "../context"
 import { memo } from "../util/memo"

 export namespace Database {
-  export type Transaction = MySqlTransaction<
-    PlanetscaleQueryResultHKT,
-    PlanetScalePreparedQueryHKT,
-    Record<string, never>,
-    any
-  >
-
  const client = memo(() => {
    const result = new Client({
      host: Resource.Database.host,
@@ -26,6 +18,7 @@ export namespace Database {
    return db
  })

+  export type Transaction = Parameters<Parameters<ReturnType<typeof client>["transaction"]>[0]>[0]
  export type TxOrDb = Transaction | ReturnType<typeof client>

  const TransactionContext = Context.create<{
@@ -1,8 +1,8 @@
 {
  "version": "7",
  "dialect": "sqlite",
-  "id": "3fb67508-0196-4bae-b2bd-c08ece7583fd",
-  "prevIds": ["dcde8e6b-4bf4-4f6b-b2be-4030c2c3e936"],
+  "id": "be60f352-8da1-40e1-8d70-dc41121cfbc5",
+  "prevIds": ["3fb67508-0196-4bae-b2bd-c08ece7583fd"],
  "ddl": [
    {
      "name": "account_state",
@@ -1442,7 +1442,7 @@
    },
    {
      "type": "text",
-      "notNull": true,
+      "notNull": false,
      "autoincrement": false,
      "default": null,
      "generated": null,
@@ -48,7 +48,7 @@ async function generate() {
          renderMigration(name, await Bun.file(path.join(incremental, name, "migration.sql")).text()),
        ),
      )
-      await fs.copyFile(path.join(incremental, name, "snapshot.json"), snapshot)
+      await Bun.write(snapshot, await formatJson(await Bun.file(path.join(incremental, name, "snapshot.json")).text()))
    }

    await fs.mkdir(full)
@@ -192,6 +192,19 @@ async function formatTypescript(input: string) {
  })
 }

+// Drizzle emits every array multi-line; format the snapshot so regeneration
+// diffs stay minimal against the prettier-styled checked-in copy.
+async function formatJson(input: string) {
+  const prettier = await import("prettier")
+  const babel = await import("prettier/plugins/babel")
+  const estree = await import("prettier/plugins/estree")
+  return prettier.format(input, {
+    parser: "json",
+    plugins: [babel.default, estree.default],
+    printWidth: 120,
+  })
+}
+
 function renderRegistry(names: string[]) {
  return `import type { DatabaseMigration } from "./migration.js"
 ${names.map((name, index) => `import m${index.toString().padStart(2, "0")} from "./migration/${name}.js"`).join("\n")}
@@ -6,7 +6,7 @@ import { EffectCache } from "drizzle-orm/cache/core/cache-effect"
 import { EffectLogger } from "drizzle-orm/effect-core"
 import { entityKind } from "drizzle-orm/entity"
 import type { AnyRelations, EmptyRelations } from "drizzle-orm/relations"
-import { SQLiteAsyncDialect } from "drizzle-orm/sqlite-core/dialect"
+import { SQLiteDialect } from "drizzle-orm/sqlite-core/dialect"
 import { SQLiteEffectDatabase } from "../sqlite-core/effect/db.js"
 import type { DrizzleConfig } from "drizzle-orm/utils"
 import { jitCompatCheck } from "../internal/drizzle-utils.js"
@@ -53,12 +53,13 @@ export const make = Effect.fn("SQLiteDrizzle.make")(function* <TRelations extend
  const cache = yield* EffectCache
  const logger = yield* EffectLogger

-  const dialect = new SQLiteAsyncDialect()
+  const useJitMappers = jitCompatCheck(config.jit)
+  const dialect = new SQLiteDialect({ useJitMappers })
  const relations = config.relations ?? ({} as TRelations)
  const session = new EffectSQLiteSession(client, dialect, relations, {
    logger,
    cache,
-    useJitMappers: jitCompatCheck(config.jit),
+    useJitMappers,
  })
  const db = new EffectSQLiteDatabase(dialect, session, relations) as EffectSQLiteDatabase<TRelations> & {
    $client: SqlClient
@@ -14,7 +14,7 @@ import { entityKind } from "drizzle-orm/entity"
 import type { AnyRelations } from "drizzle-orm/relations"
 import type { RelationalQueryMapperConfig } from "drizzle-orm/relations"
 import type { Query } from "drizzle-orm/sql/sql"
-import type { SQLiteAsyncDialect } from "drizzle-orm/sqlite-core/dialect"
+import type { SQLiteDialect } from "drizzle-orm/sqlite-core/dialect"
 import {
  SQLiteEffectPreparedQuery,
  SQLiteEffectSession,
@@ -59,7 +59,7 @@ export class EffectSQLiteSession<TRelations extends AnyRelations> extends SQLite

  constructor(
    private client: SqlClient,
-    dialect: SQLiteAsyncDialect,
+    dialect: SQLiteDialect,
    protected relations: TRelations,
    private options: EffectSQLiteSessionOptions,
  ) {
@@ -41,14 +41,34 @@ export function orderSelectedFields<TColumn extends Column>(
 ): SelectedFieldsOrdered {
  return Object.entries(fields).flatMap(([name, field]) => {
    const path = pathPrefix ? [...pathPrefix, name] : [name]
-    if (is(field, Column) || is(field, SQL) || is(field, SQL.Aliased) || is(field, Subquery)) {
-      return [{ path, field }] as SelectedFieldsOrdered
-    }
+    if (is(field, Column)) return [{ path, field, fieldType: "Column", column: field }] as SelectedFieldsOrdered
+    if (is(field, SQL)) return [{ path, field, fieldType: "SQL" }] as SelectedFieldsOrdered
+    if (is(field, SQL.Aliased)) return [{ path, field, fieldType: "SQL.Aliased" }] as SelectedFieldsOrdered
+    if (is(field, Subquery)) return [{ path, field, fieldType: "Subquery" }] as SelectedFieldsOrdered
    if (is(field, Table)) return orderSelectedFields(getTableColumnsRuntime(field as SQLiteTable), path)
    return orderSelectedFields(field as Record<string, unknown>, path)
  }) as SelectedFieldsOrdered
 }

+export function resolveNullableObjectPaths(
+  columns: SelectedFieldsOrdered,
+  joinsNotNullableMap: Record<string, boolean> | undefined,
+) {
+  if (!joinsNotNullableMap) return undefined
+  const tableOf = columns
+    .filter((column) => column.path.length > 1 && column.fieldType === "Column")
+    .reduce<Record<string, string | false>>((result, column) => {
+      const key = column.path[0]!
+      const tableName = getTableName(getColumnTable(column.field as Column))
+      const current = result[key]
+      result[key] = current === undefined ? tableName : current === tableName ? current : false
+      return result
+    }, {})
+  return Object.entries(tableOf)
+    .filter(([, tableName]) => typeof tableName === "string" && !joinsNotNullableMap[tableName])
+    .map(([key]) => key)
+}
+
 export function mapUpdateSet<TTable extends SQLiteTable>(table: TTable, values: SQLiteUpdateSetSource<TTable>) {
  const entries = Object.entries(values).filter(([, value]) => value !== undefined)
  if (entries.length === 0) throw new Error("No values to set")
@@ -9,7 +9,7 @@ import type { TypedQueryBuilder } from "drizzle-orm/query-builders/query-builder
 import type { AnyRelations, EmptyRelations } from "drizzle-orm/relations"
 import { SelectionProxyHandler } from "drizzle-orm/selection-proxy"
 import { type ColumnsSelection, type SQL, sql, type SQLWrapper } from "drizzle-orm/sql/sql"
-import type { SQLiteAsyncDialect } from "drizzle-orm/sqlite-core/dialect"
+import type { SQLiteDialect } from "drizzle-orm/sqlite-core/dialect"
 import { QueryBuilder } from "drizzle-orm/sqlite-core/query-builders/query-builder"
 import type { SelectedFields } from "drizzle-orm/sqlite-core/query-builders/select.types"
 import type { SQLiteTransactionConfig } from "drizzle-orm/sqlite-core/session"
@@ -45,7 +45,7 @@ export class SQLiteEffectDatabase<

  constructor(
    /** @internal */
-    readonly dialect: SQLiteAsyncDialect,
+    readonly dialect: SQLiteDialect,
    /** @internal */
    readonly session: SQLiteEffectSession<TEffectHKT, TRunResult, TRelations>,
    relations: TRelations,
@@ -3,14 +3,15 @@ import type * as Effect from "effect/Effect"
 import { applyEffectWrapper, type QueryEffectHKTBase } from "drizzle-orm/effect-core/query-effect"
 import { entityKind, is } from "drizzle-orm/entity"
 import type { SelectResultFields } from "drizzle-orm/query-builders/select.types"
+import type { TypedQueryBuilder } from "drizzle-orm/query-builders/query-builder"
 import type { RunnableQuery } from "drizzle-orm/runnable-query"
 import type { Query, SQLWrapper } from "drizzle-orm/sql/sql"
-import { Param, SQL, sql } from "drizzle-orm/sql/sql"
+import { SQL, sql } from "drizzle-orm/sql/sql"
 import type { SQLiteDialect } from "drizzle-orm/sqlite-core/dialect"
 import type { IndexColumn } from "drizzle-orm/sqlite-core/indexes"
 import type {
  SQLiteInsertConfig,
-  SQLiteInsertSelectQueryBuilder,
+  SQLiteInsertSelection,
  SQLiteInsertValue,
 } from "drizzle-orm/sqlite-core/query-builders/insert"
 import type { SelectedFieldsFlat } from "drizzle-orm/sqlite-core/query-builders/select.types"
@@ -152,34 +153,24 @@ export class SQLiteEffectInsertBuilder<
    if (values.length === 0) {
      throw new Error("values() must be called with at least one value")
    }
-    const mappedValues = values.map((entry) => {
-      const result: Record<string, Param | SQL> = {}
-      const cols = getTableColumnsRuntime(this.table)
-      for (const colKey of Object.keys(entry)) {
-        const colValue = entry[colKey as keyof typeof entry]
-        result[colKey] = is(colValue, SQL) ? colValue : new Param(colValue, cols[colKey])
-      }
-      return result
-    })
-
-    return new SQLiteEffectInsertBase(this.table, mappedValues, this.session, this.dialect, this.withList)
+    return new SQLiteEffectInsertBase(this.table, values, this.session, this.dialect, this.withList)
  }

  select(
-    selectQuery: (qb: QueryBuilder) => SQLiteInsertSelectQueryBuilder<TTable>,
+    selectQuery: (qb: QueryBuilder) => TypedQueryBuilder<SQLiteInsertSelection<TTable>>,
  ): SQLiteEffectInsertBase<TTable, TRunResult, undefined, false, never, TEffectHKT>
  select(
    selectQuery: (qb: QueryBuilder) => SQL,
  ): SQLiteEffectInsertBase<TTable, TRunResult, undefined, false, never, TEffectHKT>
  select(selectQuery: SQL): SQLiteEffectInsertBase<TTable, TRunResult, undefined, false, never, TEffectHKT>
  select(
-    selectQuery: SQLiteInsertSelectQueryBuilder<TTable>,
+    selectQuery: TypedQueryBuilder<SQLiteInsertSelection<TTable>>,
  ): SQLiteEffectInsertBase<TTable, TRunResult, undefined, false, never, TEffectHKT>
  select(
    selectQuery:
      | SQL
-      | SQLiteInsertSelectQueryBuilder<TTable>
-      | ((qb: QueryBuilder) => SQLiteInsertSelectQueryBuilder<TTable> | SQL),
+      | TypedQueryBuilder<SQLiteInsertSelection<TTable>>
+      | ((qb: QueryBuilder) => TypedQueryBuilder<SQLiteInsertSelection<TTable>> | SQL),
  ): SQLiteEffectInsertBase<TTable, TRunResult, undefined, false, never, TEffectHKT> {
    const select = typeof selectQuery === "function" ? selectQuery(new QueryBuilder()) : selectQuery

@@ -5,7 +5,7 @@ import { entityKind } from "drizzle-orm/entity"
 import type { RunnableQuery } from "drizzle-orm/runnable-query"
 import type { PreparedQuery } from "drizzle-orm/session"
 import type { Query, SQL, SQLWrapper } from "drizzle-orm/sql/sql"
-import type { SQLiteAsyncDialect } from "drizzle-orm/sqlite-core/dialect"
+import type { SQLiteDialect } from "drizzle-orm/sqlite-core/dialect"

 type SQLiteEffectRawAction = "all" | "get" | "values" | "run"

@@ -29,7 +29,7 @@ export class SQLiteEffectRaw<TResult, TEffectHKT extends QueryEffectHKTBase = Qu
    /** @internal */
    public getSQL: () => SQL,
    private action: SQLiteEffectRawAction,
-    private dialect: SQLiteAsyncDialect,
+    private dialect: SQLiteDialect,
    private mapBatchResult: (result: unknown) => unknown,
  ) {}

@@ -15,7 +15,7 @@ import { SQL } from "drizzle-orm/sql/sql"
 import type { ColumnsSelection, SQLWrapper } from "drizzle-orm/sql/sql"
 import type { SQLiteColumn } from "drizzle-orm/sqlite-core/columns"
 import type { SQLiteDialect } from "drizzle-orm/sqlite-core/dialect"
-import { SQLiteSelectQueryBuilderBase } from "drizzle-orm/sqlite-core/query-builders/select"
+import { SQLiteSelectBase } from "drizzle-orm/sqlite-core/query-builders/select"
 import type {
  CreateSQLiteSelectFromBuilderMode,
  SelectedFields,
@@ -97,8 +97,8 @@ export class SQLiteEffectSelectBuilder<
      >
    : CreateSQLiteSelectFromBuilderMode<
        TBuilderMode,
+        SQLiteEffectSelectHKT<TEffectHKT>,
        GetSelectTableName<TFrom>,
-        "async",
        TRunResult,
        TSelection extends undefined ? GetSelectTableSelection<TFrom> : TSelection,
        TSelection extends undefined ? "single" : "partial"
@@ -164,10 +164,9 @@ export interface SQLiteEffectSelectBase<
  out TResult extends any[] = SelectResult<TSelection, TSelectMode, TNullabilityMap>[],
  out TSelectedFields extends ColumnsSelection = BuildSubquerySelection<TSelection, TNullabilityMap>,
  out TEffectHKT extends QueryEffectHKTBase = QueryEffectHKTBase,
-> extends SQLiteSelectQueryBuilderBase<
+> extends SQLiteSelectBase<
      SQLiteEffectSelectHKT<TEffectHKT>,
      TTableName,
-      "async",
      TRunResult,
      TSelection,
      TSelectMode,
@@ -193,10 +192,9 @@ export class SQLiteEffectSelectBase<
    out TSelectedFields extends ColumnsSelection = BuildSubquerySelection<TSelection, TNullabilityMap>,
    out TEffectHKT extends QueryEffectHKTBase = QueryEffectHKTBase,
  >
-  extends SQLiteSelectQueryBuilderBase<
+  extends SQLiteSelectBase<
    SQLiteEffectSelectHKT<TEffectHKT>,
    TTableName,
-    "async",
    TRunResult,
    TSelection,
    TSelectMode,
@@ -215,7 +213,7 @@ export class SQLiteEffectSelectBase<
  }

  /** @internal */
-  getSQL(): SQL {
+  override getSQL(): SQL {
    return this.dialect.buildSelectQuery(this.effectConfig)
  }

@@ -240,7 +238,7 @@ export class SQLiteEffectSelectBase<
    return query as ReturnType<this["prepare"]>
  }

-  $withCache(config?: { config?: CacheConfig; tag?: string; autoInvalidate?: boolean } | false) {
+  override $withCache(config?: { config?: CacheConfig; tag?: string; autoInvalidate?: boolean } | false) {
    this.cacheConfig =
      config === undefined
        ? { config: {}, enabled: true, autoInvalidate: true }
@@ -21,12 +21,12 @@ import type {
 import { makeJitRqbMapper } from "drizzle-orm/relations"
 import type { PreparedQuery } from "drizzle-orm/session"
 import { fillPlaceholders, type Query, type SQL, sql } from "drizzle-orm/sql/sql"
-import type { SQLiteAsyncDialect } from "drizzle-orm/sqlite-core/dialect"
+import type { SQLiteDialect } from "drizzle-orm/sqlite-core/dialect"
 import type { SelectedFieldsOrdered } from "drizzle-orm/sqlite-core/query-builders/select.types"
 import type { PreparedQueryConfig, SQLiteExecuteMethod, SQLiteTransactionConfig } from "drizzle-orm/sqlite-core/session"
 import { upgradeIfNeeded } from "../../up-migrations/effect-sqlite.js"
 import { assertUnreachable, makeJitQueryMapper, type RowsMapper } from "drizzle-orm/utils"
-import { mapResultRow } from "../../internal/drizzle-utils.js"
+import { mapResultRow, resolveNullableObjectPaths } from "../../internal/drizzle-utils.js"
 import { SQLiteEffectDatabase } from "./db.js"

 type MigrationConfigWithInit = MigrationConfig & { init?: boolean }
@@ -155,7 +155,10 @@ export class SQLiteEffectPreparedQuery<
    return this.useJitMappers
      ? (this.jitMapper =
          (this.jitMapper as RowsMapper<T["all"]>) ??
-          makeJitQueryMapper<T["all"]>(this.fields!, this.joinsNotNullableMap))(rows as unknown[][])
+          makeJitQueryMapper<T["all"]>(
+            this.fields!,
+            resolveNullableObjectPaths(this.fields!, this.joinsNotNullableMap),
+          ))(rows as unknown[][])
      : (rows as unknown[][]).map((row) => mapResultRow(this.fields!, row, this.joinsNotNullableMap))
  }

@@ -187,7 +190,10 @@ export class SQLiteEffectPreparedQuery<
    return this.useJitMappers
      ? (this.jitMapper =
          (this.jitMapper as RowsMapper<T["get"][]>) ??
-          makeJitQueryMapper<T["get"][]>(this.fields!, this.joinsNotNullableMap))([row as unknown[]])[0]
+          makeJitQueryMapper<T["get"][]>(
+            this.fields!,
+            resolveNullableObjectPaths(this.fields!, this.joinsNotNullableMap),
+          ))([row as unknown[]])[0]
      : mapResultRow(this.fields!, row as unknown[], this.joinsNotNullableMap)
  }

@@ -311,7 +317,7 @@ export abstract class SQLiteEffectSession<
 > {
  static readonly [entityKind]: string = "SQLiteEffectSession"

-  constructor(readonly dialect: SQLiteAsyncDialect) {}
+  constructor(readonly dialect: SQLiteDialect) {}

  abstract prepareQuery<T extends PreparedQueryConfig = PreparedQueryConfig>(
    query: Query,
@@ -412,7 +418,7 @@ export abstract class SQLiteEffectTransaction<
  static override readonly [entityKind]: string = "SQLiteEffectTransaction"

  constructor(
-    dialect: SQLiteAsyncDialect,
+    dialect: SQLiteDialect,
    session: SQLiteEffectSession<TEffectHKT, TRunResult, TRelations>,
    protected relations: TRelations,
  ) {
@@ -44,6 +44,7 @@ import m41 from "./migration/20260811161259_execution_claim_attempts.js"
 import m42 from "./migration/20260812181746_session_inbox.js"
 import m43 from "./migration/20260812213948_worktree.js"
 import m44 from "./migration/20260819222447_session_viewed_state.js"
+import m45 from "./migration/20260823191254_nullable_workspace_binding.js"

 export const migrations = [
  m00,
@@ -91,4 +92,5 @@ export const migrations = [
  m42,
  m43,
  m44,
+  m45,
 ] satisfies DatabaseMigration.Migration[]
@@ -0,0 +1,27 @@
+import { Effect } from "effect"
+import type { DatabaseMigration } from "../migration.js"
+
+const migration: DatabaseMigration.Migration = {
+  id: "20260823191254_nullable_workspace_binding",
+  foreignKeys: false,
+  up(tx) {
+    return Effect.gen(function* () {
+      yield* tx.run(`
+        CREATE TABLE \`__new_workspace\` (
+          \`id\` text PRIMARY KEY,
+          \`provider\` text NOT NULL,
+          \`binding\` text,
+          \`created_at\` integer NOT NULL,
+          \`last_used_at\` integer NOT NULL
+        );
+      `)
+      yield* tx.run(
+        `INSERT INTO \`__new_workspace\`(\`id\`, \`provider\`, \`binding\`, \`created_at\`, \`last_used_at\`) SELECT \`id\`, \`provider\`, \`binding\`, \`created_at\`, \`last_used_at\` FROM \`workspace\`;`,
+      )
+      yield* tx.run(`DROP TABLE \`workspace\`;`)
+      yield* tx.run(`ALTER TABLE \`__new_workspace\` RENAME TO \`workspace\`;`)
+    })
+  },
+}
+
+export default migration
@@ -223,7 +223,7 @@ const schema: Omit<DatabaseMigration.Migration, "id"> = {
        CREATE TABLE \`workspace\` (
          \`id\` text PRIMARY KEY,
          \`provider\` text NOT NULL,
-          \`binding\` text NOT NULL,
+          \`binding\` text,
          \`created_at\` integer NOT NULL,
          \`last_used_at\` integer NOT NULL
        );
@@ -63,7 +63,13 @@ const baseLayer = Layer.effect(
    const fs = yield* FSUtil.Service
    const location = yield* Location.Service
    const search = yield* FileSystemSearch.Service
-    const root = yield* fs.realPath(location.directory).pipe(Effect.orDie)
+    // Workspace-placed directories exist only inside the workspace, so a host
+    // realpath probe at boot consults the wrong filesystem and would block
+    // construction on servers without a matching local directory. Treat the
+    // configured directory as canonical; local placements keep symlink
+    // canonicalization. This skip is boot-only: resolve/read/list below still
+    // access the host filesystem per operation (tracked in #44568).
+    const root = location.workspaceID ? location.directory : yield* fs.realPath(location.directory).pipe(Effect.orDie)
    const resolve = Effect.fnUntraced(function* (input?: RelativePath) {
      const absolute = path.resolve(location.directory, input ?? ".")
      if (!FSUtil.contains(location.directory, absolute))
@@ -2,7 +2,7 @@ export * as FileSystemSearch from "./search.js"

 import { makeLocationNode } from "@opencode-ai/util/effect/app-node"
 import path from "path"
-import { Clock, Context, Duration, Effect, Layer, Schema, Scope } from "effect"
+import { Clock, Context, Deferred, Duration, Effect, Layer, Schema, Scope } from "effect"
 import { Fff } from "#fff"
 import fuzzysort from "fuzzysort"
 import { FileSystem } from "../filesystem.js"
@@ -61,7 +61,7 @@ export const ripgrepLayer = Layer.effect(
    let index = emptyIndex()
    let initialized = false
    let settledAt = Number.NEGATIVE_INFINITY
-    let refreshing = false
+    let refreshing: Deferred.Deferred<void> | undefined
    const scan = Effect.gen(function* () {
      const next = emptyIndex()
      const previous = index
@@ -84,21 +84,25 @@ export const ripgrepLayer = Layer.effect(
      })
      index = next
      initialized = true
-    }).pipe(
-      Effect.orDie,
-      Effect.ensuring(
-        Effect.sync(() => {
-          settledAt = clock.currentTimeMillisUnsafe()
-          refreshing = false
-        }),
-      ),
-    )
-    const refresh = Effect.sync(() => {
-      if (refreshing || clock.currentTimeMillisUnsafe() < settledAt + REFRESH_INTERVAL) return
-      refreshing = true
-      return scan
-    }).pipe(Effect.flatMap((effect) => (effect ? effect.pipe(Effect.forkIn(scope)) : Effect.void)))
-    yield* refresh
+    }).pipe(Effect.orDie)
+    const refresh = Effect.suspend(() => {
+      if (refreshing) return initialized ? Effect.void : Deferred.await(refreshing)
+      if (initialized && clock.currentTimeMillisUnsafe() < settledAt + REFRESH_INTERVAL) return Effect.void
+
+      const attempt = Deferred.makeUnsafe<void>()
+      refreshing = attempt
+      return scan.pipe(
+        Effect.onExit((exit) =>
+          Effect.sync(() => {
+            settledAt = clock.currentTimeMillisUnsafe()
+            if (refreshing === attempt) refreshing = undefined
+            Deferred.doneUnsafe(attempt, exit)
+          }),
+        ),
+        Effect.forkIn(scope),
+        Effect.flatMap(() => (initialized ? Effect.void : Deferred.await(attempt))),
+      )
+    })
    return Service.of({
      find: (input) =>
        Effect.gen(function* () {
@@ -180,9 +184,12 @@ export const fffLayer = Layer.effect(
 export const layer = (options?: Options) =>
  Layer.unwrap(
    Effect.gen(function* () {
+      const location = yield* Location.Service
+      // Workspace-backed Locations resolve in a remote sandbox; fff would index the local server directory
+      // in-process and serve wrong results. Ripgrep routes through the Location environment spawner.
+      if (location.workspaceID) return ripgrepLayer
      if (options?.fff === false || (options?.fff === undefined && process.platform === "win32") || !Fff.available())
        return ripgrepLayer
-      const location = yield* Location.Service
      // Non-VCS locations can contain many repositories, so avoid eagerly content-indexing the entire aggregate tree.
      return location.vcs && !Protected.isHome(location.directory) ? fffLayer : ripgrepLayer
    }),
@@ -7,7 +7,6 @@ import {
 import { convertToBase64, parseProviderOptions } from "@ai-sdk/provider-utils"
 import { z } from "zod/v4"
 import type { OpenAIResponsesInput, OpenAIResponsesReasoning } from "./openai-responses-api-types.js"
-import { localShellInputSchema, localShellOutputSchema } from "./tool/local-shell.js"

 /**
 * Check if a string is a file ID based on the given prefixes
@@ -23,13 +22,11 @@ export async function convertToOpenAIResponsesInput({
  systemMessageMode,
  fileIdPrefixes,
  store,
-  hasLocalShellTool = false,
 }: {
  prompt: LanguageModelV3Prompt
  systemMessageMode: "system" | "developer" | "remove"
  fileIdPrefixes?: readonly string[]
  store: boolean
-  hasLocalShellTool?: boolean
 }): Promise<{
  input: OpenAIResponsesInput
  warnings: Array<SharedV3Warning>
@@ -138,25 +135,6 @@ export async function convertToOpenAIResponsesInput({
                break
              }

-              if (hasLocalShellTool && part.toolName === "local_shell") {
-                const parsedInput = localShellInputSchema.parse(part.input)
-                input.push({
-                  type: "local_shell_call",
-                  call_id: part.toolCallId,
-                  id: store ? ((part.providerOptions?.copilot?.itemId as string) ?? undefined) : undefined,
-                  action: {
-                    type: "exec",
-                    command: parsedInput.action.command,
-                    timeout_ms: parsedInput.action.timeoutMs,
-                    user: parsedInput.action.user,
-                    working_directory: parsedInput.action.workingDirectory,
-                    env: parsedInput.action.env,
-                  },
-                })
-
-                break
-              }
-
              input.push({
                type: "function_call",
                call_id: part.toolCallId,
@@ -261,15 +239,6 @@ export async function convertToOpenAIResponsesInput({
            }
          }

-          if (hasLocalShellTool && part.toolName === "local_shell" && output.type === "json") {
-            input.push({
-              type: "local_shell_call_output",
-              call_id: part.toolCallId,
-              output: localShellOutputSchema.parse(output.value).output,
-            })
-            break
-          }
-
          let contentValue: string
          switch (output.type) {
            case "text":
@@ -9,8 +9,6 @@ export type OpenAIResponsesInputItem =
  | OpenAIResponsesFunctionCall
  | OpenAIResponsesFunctionCallOutput
  | OpenAIResponsesComputerCall
-  | OpenAIResponsesLocalShellCall
-  | OpenAIResponsesLocalShellCallOutput
  | OpenAIResponsesReasoning
  | OpenAIResponsesItemReference
  | OpenAIResponsesMcpApprovalResponse
@@ -69,26 +67,6 @@ export type OpenAIResponsesComputerCall = {
  status?: string
 }

-export type OpenAIResponsesLocalShellCall = {
-  type: "local_shell_call"
-  id?: string
-  call_id: string
-  action: {
-    type: "exec"
-    command: string[]
-    timeout_ms?: number
-    user?: string
-    working_directory?: string
-    env?: Record<string, string>
-  }
-}
-
-export type OpenAIResponsesLocalShellCallOutput = {
-  type: "local_shell_call_output"
-  call_id: string
-  output: string
-}
-
 export type OpenAIResponsesItemReference = {
  type: "item_reference"
  id: string
@@ -199,9 +177,6 @@ export type OpenAIResponsesTool =
      quality: "auto" | "low" | "medium" | "high" | undefined
      size: "auto" | "1024x1024" | "1024x1536" | "1536x1024" | undefined
    }
-  | {
-      type: "local_shell"
-    }

 export type OpenAIResponsesReasoning = {
  type: "reasoning"
@@ -29,7 +29,6 @@ import { mapOpenAIResponseFinishReason } from "./map-openai-responses-finish-rea
 import type { OpenAIResponsesIncludeOptions, OpenAIResponsesIncludeValue } from "./openai-responses-api-types.js"
 import { prepareResponsesTools } from "./openai-responses-prepare-tools.js"
 import type { OpenAIResponsesModelId } from "./openai-responses-settings.js"
-import { localShellInputSchema } from "./tool/local-shell.js"

 const webSearchCallItem = z.object({
  type: z.literal("web_search_call"),
@@ -86,20 +85,6 @@ const codeInterpreterCallItem = z.object({
    .nullable(),
 })

-const localShellCallItem = z.object({
-  type: z.literal("local_shell_call"),
-  id: z.string(),
-  call_id: z.string(),
-  action: z.object({
-    type: z.literal("exec"),
-    command: z.array(z.string()),
-    timeout_ms: z.number().optional(),
-    user: z.string().optional(),
-    working_directory: z.string().optional(),
-    env: z.record(z.string(), z.string()).optional(),
-  }),
-})
-
 const imageGenerationCallItem = z.object({
  type: z.literal("image_generation_call"),
  id: z.string(),
@@ -205,7 +190,6 @@ export class OpenAIResponsesLanguageModel implements LanguageModelV3 {
      systemMessageMode: modelConfig.systemMessageMode,
      fileIdPrefixes: this.config.fileIdPrefixes,
      store,
-      hasLocalShellTool: hasOpenAITool("openai.local_shell"),
    })

    warnings.push(...inputWarnings)
@@ -462,7 +446,6 @@ export class OpenAIResponsesLanguageModel implements LanguageModelV3 {
              fileSearchCallItem,
              codeInterpreterCallItem,
              imageGenerationCallItem,
-              localShellCallItem,
              z.object({
                type: z.literal("function_call"),
                call_id: z.string(),
@@ -560,22 +543,6 @@ export class OpenAIResponsesLanguageModel implements LanguageModelV3 {
          break
        }

-        case "local_shell_call": {
-          content.push({
-            type: "tool-call",
-            toolCallId: part.call_id,
-            toolName: "local_shell",
-            input: JSON.stringify({ action: part.action } satisfies z.infer<typeof localShellInputSchema>),
-            providerMetadata: {
-              copilot: {
-                itemId: part.id,
-              },
-            },
-          })
-
-          break
-        }
-
        case "message": {
          for (const contentPart of part.content) {
            if (options.providerOptions?.copilot?.logprobs && contentPart.logprobs) {
@@ -1093,27 +1060,6 @@ export class OpenAIResponsesLanguageModel implements LanguageModelV3 {
                    result: value.item.result,
                  } satisfies z.infer<typeof imageGenerationOutputSchema>,
                })
-              } else if (value.item.type === "local_shell_call") {
-                ongoingToolCalls[value.output_index] = undefined
-
-                controller.enqueue({
-                  type: "tool-call",
-                  toolCallId: value.item.call_id,
-                  toolName: "local_shell",
-                  input: JSON.stringify({
-                    action: {
-                      type: "exec",
-                      command: value.item.action.command,
-                      timeoutMs: value.item.action.timeout_ms,
-                      user: value.item.action.user,
-                      workingDirectory: value.item.action.working_directory,
-                      env: value.item.action.env,
-                    },
-                  } satisfies z.infer<typeof localShellInputSchema>),
-                  providerMetadata: {
-                    copilot: { itemId: value.item.id },
-                  },
-                })
              } else if (value.item.type === "message") {
                if (currentTextId) {
                  controller.enqueue({
@@ -1528,7 +1474,6 @@ const responseOutputItemDoneSchema = z.object({
    imageGenerationCallItem,
    webSearchCallItem,
    fileSearchCallItem,
-    localShellCallItem,
    z.object({
      type: z.literal("computer_call"),
      id: z.string(),
@@ -70,12 +70,6 @@ export function prepareResponsesTools({

            break
          }
-          case "openai.local_shell": {
-            openaiTools.push({
-              type: "local_shell",
-            })
-            break
-          }
          case "openai.web_search_preview": {
            const args = webSearchPreviewArgsSchema.parse(tool.args)
            openaiTools.push({
@@ -1,16 +0,0 @@
-import { z } from "zod/v4"
-
-export const localShellInputSchema = z.object({
-  action: z.object({
-    type: z.literal("exec"),
-    command: z.array(z.string()),
-    timeoutMs: z.number().optional(),
-    user: z.string().optional(),
-    workingDirectory: z.string().optional(),
-    env: z.record(z.string(), z.string()).optional(),
-  }),
-})
-
-export const localShellOutputSchema = z.object({
-  output: z.string(),
-})
@@ -8,13 +8,27 @@ import { DecodeError, ResizerUnavailableError, SizeError } from "../image.js"
 const JPEG_QUALITIES = [80, 85, 70, 55, 40]

 export const make = Effect.gen(function* () {
-  ;(globalThis as typeof globalThis & { __OPENCODE_PHOTON_WASM_PATH?: string }).__OPENCODE_PHOTON_WASM_PATH =
-    path.isAbsolute(photonWasm) ? photonWasm : fileURLToPath(new URL(photonWasm, import.meta.url))
  const loadPhoton = yield* Effect.cached(
-    Effect.tryPromise({
-      try: () => import("@silvia-odwyer/photon-node"),
-      catch: () => new ResizerUnavailableError(),
-    }),
+    // A runtime without a photon wasm artifact (#photon-wasm resolves to the
+    // empty string on workerd) has no resizer, by declaration: fail typed
+    // before touching URLs or module loading. The path resolution and import
+    // for runtimes that DO have an artifact stay inside the guard too — a
+    // throw outside it (workerd's undefined import.meta.url was one) is a
+    // defect that escapes the ResizerUnavailableError handling and turns any
+    // image-bearing prompt into a 500 instead of degrading to passthrough.
+    photonWasm === ""
+      ? Effect.fail(new ResizerUnavailableError())
+      : Effect.tryPromise({
+          try: async () => {
+            ;(
+              globalThis as typeof globalThis & { __OPENCODE_PHOTON_WASM_PATH?: string }
+            ).__OPENCODE_PHOTON_WASM_PATH = path.isAbsolute(photonWasm)
+              ? photonWasm
+              : fileURLToPath(new URL(photonWasm, import.meta.url))
+            return await import("@silvia-odwyer/photon-node")
+          },
+          catch: () => new ResizerUnavailableError(),
+        }),
  )
  return Effect.fn("Image.Photon.normalize")(function* (
    resource: string,
@@ -147,7 +147,14 @@ export function buildLocationServiceMap(
            Layer.provide(LayerNode.compile(location.hoisted)),
          )
        },
-        { idleTimeToLive: (ref) => (existsSync(ref.directory) ? Duration.infinity : Duration.zero) },
+        {
+          // Workspace-placed directories exist only inside the workspace, so a
+          // local stat consults the wrong filesystem. Workspace liveness is
+          // owned by placement; do not probe the sandbox here, which would
+          // provision lazily-idle workspaces.
+          idleTimeToLive: (ref) =>
+            ref.workspaceID !== undefined || existsSync(ref.directory) ? Duration.infinity : Duration.zero,
+        },
      ),
      (inner) => ({
        ...inner,
@@ -273,28 +273,53 @@ export const layer = (options?: Options) =>
          return MCPOAuth.provider({ ...base, store: MCPOAuth.memoryStore() })
        const credentialID = found.id
        const methodID = found.value.methodID
-        let current: Credential.OAuth | undefined = found.value
+        const integrationID = entry.integrationID
+        // Tracks the refresh token this provider last presented, so invalidate can tell whether the SDK
+        // rejected the currently-stored credential or a snapshot another connection has already rotated past.
+        let presented = found.value.refresh
+        const readOAuthCredential = async () => {
+          const stored = await Effect.runPromise(credentials.list(integrationID))
+          const match = stored.find((credential) => credential.id === credentialID)
+          return match && match.value.type === "oauth" ? match.value : undefined
+        }
        return MCPOAuth.provider({
          ...base,
-          // Drop a credential the SDK rejected so the next connect cleanly reports needs_auth. Uses the raw
-          // credential service (no integration event) to avoid re-triggering the reconnect subscriber mid-connect.
+          // Drop a credential the SDK rejected so the next connect cleanly reports needs_auth — but only if it is
+          // still the stored one. Rotating servers hand out a fresh refresh token per use, so a concurrent
+          // connection may have already replaced ours; deleting then would discard the newer valid credential and
+          // strand every connection in needs_auth until a manual re-auth. Uses the raw credential service (no
+          // integration event) to avoid re-triggering the reconnect subscriber mid-connect.
          invalidate: async (scope) => {
            if (scope === "verifier" || scope === "discovery") return
-            current = undefined
+            const oauth = await readOAuthCredential()
+            if (!oauth || oauth.refresh !== presented) return
            await Effect.runPromise(credentials.remove(credentialID))
          },
+          // Always read the latest stored tokens instead of caching at connect time: with refresh-token rotation,
+          // a cached snapshot goes stale the moment another connection refreshes, and re-presenting the consumed
+          // token fails with invalid_grant.
          store: {
-            tokens: async () => (current ? MCPOAuth.toTokens(current) : undefined),
+            tokens: async () => {
+              const oauth = await readOAuthCredential()
+              if (!oauth) return undefined
+              presented = oauth.refresh
+              return MCPOAuth.toTokens(oauth)
+            },
            saveTokens: async (tokens) => {
-              current = MCPOAuth.toCredential({
+              const previous = await readOAuthCredential()
+              const value = MCPOAuth.toCredential({
                methodID,
                serverUrl: remote.url,
                tokens,
-                client: current ? MCPOAuth.clientFromCredential(current) : undefined,
+                client: previous ? MCPOAuth.clientFromCredential(previous) : undefined,
              })
-              await Effect.runPromise(credentials.update(credentialID, { value: current }))
+              presented = value.refresh
+              await Effect.runPromise(credentials.update(credentialID, { value }))
+            },
+            clientInformation: async () => {
+              const oauth = await readOAuthCredential()
+              return oauth ? MCPOAuth.clientFromCredential(oauth) : undefined
            },
-            clientInformation: async () => (current ? MCPOAuth.clientFromCredential(current) : undefined),
            saveClientInformation: async () => {},
            codeVerifier: async () => undefined,
            saveCodeVerifier: async () => {},
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
opencode-agent[bot]	73974dc668	chore: update nix node_modules hashes	2026-08-24 02:18:31 +00:00
Kit Langton	1593479454	chore(core): upgrade drizzle orm to rc5 (#44573 )	2026-08-23 21:56:02 -04:00
Kit Langton	971681c567	fix(image): degrade photon resizer load failure to typed error on workerd (#43894 )	2026-08-23 21:44:01 -04:00
Luke Parker	378a7b7be1	fix: stream Bun runtime downloads to disk to avoid Bun.write GC hang (#44572 )	2026-08-24 11:22:42 +10:00
Aiden Cline	6d57667168	fix(ai): clamp prompt_cache_key to 64 chars for all chat protocols (#44571 )	2026-08-23 20:21:15 -05:00
Aiden Cline	d4935360c5	fix(ai): keep stateless hosted tool results and tolerate WS keepalives (#44488 )	2026-08-23 20:19:14 -05:00
Aiden Cline	89281dcd01	fix(ai): preserve display on enabled thinking (#44544 )	2026-08-23 20:05:30 -05:00
Aiden Cline	9f9184b002	fix(ai): preserve OpenAI tool schemas (#44546 )	2026-08-23 20:05:06 -05:00
Kit Langton	c6f4fa0d1f	fix(core): never build fff index for workspace locations (#44563 )	2026-08-24 01:00:27 +00:00
Kit Langton	c505c91438	fix(codemode): package conditional transpilers (#44565 )	2026-08-23 20:50:39 -04:00
Kit Langton	8887c2ffa9	fix(core): skip host realpath canonicalization for workspace locations (#44564 )	2026-08-23 20:50:29 -04:00
opencode-agent[bot]	ddaf9ff433	chore: update nix node_modules hashes	2026-08-24 00:35:01 +00:00
usrnk1andLukeParkerDev	d3e5d6d268	feat(desktop): add model change notices (#43288 ) Co-authored-by: LukeParkerDev <10430890+Hona@users.noreply.github.com>	2026-08-24 00:17:35 +00:00
Kit Langton	f9bc948912	fix(core): skip local liveness check for workspace locations (#44560 )	2026-08-23 20:17:04 -04:00
opencode-agent[bot]	6f238feeff	chore: update nix node_modules hashes	2026-08-24 00:07:29 +00:00
Kit Langton	e867a21ea5	feat(core): decouple workspace identity from provisioning (#44526 )	2026-08-23 23:49:51 +00:00
Luke Parker	64c0411edb	fix(session-ui): align tool error card with figma (#44543 )	2026-08-23 23:31:45 +00:00
opencode-agent[bot]andrekram1-node	7da10aa65d	fix(ai): retry detail-free response errors (#44537 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-08-23 17:39:55 -05:00
Luke Parker	d80b0a1e7e	fix(desktop): reconnect to elected service (#44369 )	2026-08-24 08:27:04 +10:00
opencode-agent[bot]	481125f617	chore: update nix node_modules hashes	2026-08-23 22:15:43 +00:00
Kit Langton	59d0d64a6b	chore: upgrade Effect to rc.111 (#44518 )	2026-08-23 18:01:44 -04:00
opencode-agent[bot]andthdxr	e0cdf1ed09	fix(tui): restore global prompt history (#44416 ) Co-authored-by: thdxr <thdxr@users.noreply.github.com>	2026-08-23 17:53:16 -04:00
Kit Langton	9e50d76416	fix(codegen): write prettier-stable schema snapshot (#43985 )	2026-08-23 17:34:47 -04:00
Dax	771c0f5850	fix(core): avoid stale MCP OAuth snapshots destroying rotated credentials (#44527 )	2026-08-23 17:02:51 -04:00
Kit Langton	b1a0ef91bb	refactor(core): use FiberMap for title generation (#44519 )	2026-08-23 16:22:43 -04:00
Kit Langton	2e67cee75b	fix(tui): recover from terminal forms (#44516 )	2026-08-23 16:21:28 -04:00
opencode-agent[bot]andrekram1-node	890735c1d7	feat(plugin): expose tool input schema (#44510 ) Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>	2026-08-23 14:19:57 -05:00
Aiden Cline	049f0b0c3b	fix(ai): handle additional usage locations and tool history for OpenAI Chat (#44502 )	2026-08-23 13:48:30 -05:00
Aiden Cline	6020f36862	fix(ai): handle anthropic error events and ping frames (#44500 )	2026-08-23 13:45:21 -05:00
Simon Klee	0d24ebdbbe	tui: preserve selection after copy (#44496 ) Copy-on-select reset the click counter, so a third click could not select the full line. Keep the selection after copying to preserve multi-click input.	2026-08-23 20:40:19 +02:00
opencode-agent[bot]andrekram1-node	b22c182406	fix(ai): preserve inline file data URLs (#44499 ) Co-authored-by: rekram1-node <63023139+rekram1-node@users.noreply.github.com>	2026-08-23 13:39:38 -05:00
Aiden Cline	c7f2f367e3	refactor(ai): remove deprecated local shell (#44497 )	2026-08-23 13:36:10 -05:00
Aiden Cline	ccd2135e7a	fix(ai): tolerate explicit nulls in Gemini stream payloads (#44490 )	2026-08-23 13:17:13 -05:00
Brendan Allan	c7c22b9d7e	fix(app): stabilize pane transitions (#44484 )	2026-08-23 17:59:00 +00:00
Aiden Cline	67e99993f5	fix(ai): align Responses compatibility (#44482 )	2026-08-23 12:53:14 -05:00
Brendan Allan	be6abc02b5	fix(app): preserve session panes across navigation (#44477 )	2026-08-23 17:37:24 +00:00
Aiden Cline	e012a57d1d	fix(ai): harden Gemini tool call id handling on Vertex and duplicate streams (#44454 )	2026-08-23 12:31:30 -05:00
Brendan Allan	697e3e13cc	fix(app): simplify session max width (#44468 )	2026-08-24 01:01:11 +08:00