fix(ai): classify DeepInfra input length rejections as context overflow

Co-authored-by: Brendonovich <14191578+Brendonovich@users.noreply.github.com>

.github/workflows/publish.yml

@@ -662,7 +662,7 @@ jobs:
     needs:
       - version
       - publish
-    if: github.repository == 'anomalyco/opencode' && github.ref_name == 'v2' && needs.version.outputs.release && needs.publish.result == 'success'
+    if: ${{ !cancelled() && github.repository == 'anomalyco/opencode' && github.ref_name == 'v2' && needs.version.outputs.release && needs.publish.result == 'success' }}
     runs-on: blacksmith-4vcpu-ubuntu-2404
     steps:
       # Unlike dev, V2 publishes a tag rather than a GitHub Release event.

bun.lock

@@ -32,7 +32,7 @@
     },
     "packages/ai": {
       "name": "@opencode/ai",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@aws-sdk/credential-providers": "3.1057.0",
         "@opencode/schema": "workspace:*",
@@ -54,7 +54,7 @@
     },
     "packages/app": {
       "name": "@opencode/app",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@corvu/drawer": "catalog:",
         "@dnd-kit/abstract": "0.5.0",
@@ -112,7 +112,7 @@
     },
     "packages/cli": {
       "name": "@opencode/cli",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "bin": {
         "opencode": "./bin/opencode.cjs",
         "opencode2": "./bin/opencode2.cjs",
@@ -178,7 +178,7 @@
     },
     "packages/client": {
       "name": "@opencode/client",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@opencode/protocol": "workspace:*",
         "@opencode/schema": "workspace:*",
@@ -204,7 +204,7 @@
     },
     "packages/codemode": {
       "name": "@opencode/codemode",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "acorn": "8.15.0",
         "effect": "catalog:",
@@ -217,7 +217,7 @@
     },
     "packages/console/app": {
       "name": "@opencode/console-app",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@cloudflare/vite-plugin": "1.15.2",
         "@ibm/plex": "6.4.1",
@@ -253,7 +253,7 @@
     },
     "packages/console/core": {
       "name": "@opencode/console-core",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@aws-sdk/client-sts": "3.782.0",
         "@jsx-email/render": "1.1.1",
@@ -280,7 +280,7 @@
     },
     "packages/console/function": {
       "name": "@opencode/console-function",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@openauthjs/openauth": "0.0.0-20250322224806",
         "@opencode/console-core": "workspace:*",
@@ -297,7 +297,7 @@
     },
     "packages/console/mail": {
       "name": "@opencode/console-mail",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@jsx-email/all": "2.2.3",
         "@jsx-email/cli": "1.4.3",
@@ -321,7 +321,7 @@
     },
     "packages/console/support": {
       "name": "@opencode/console-support",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@cloudflare/vite-plugin": "1.15.2",
         "@opencode/console-core": "workspace:*",
@@ -341,7 +341,7 @@
     },
     "packages/core": {
       "name": "@opencode/core",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@ai-sdk/cohere": "3.0.27",
         "@ai-sdk/gateway": "3.0.104",
@@ -377,6 +377,7 @@
         "https-proxy-agent": "7.0.6",
         "ignore": "7.0.5",
         "immer": "11.1.4",
+        "jose": "6.0.11",
         "jsonc-parser": "3.3.1",
         "mime-types": "3.0.2",
         "tree-sitter-bash": "0.25.0",
@@ -409,7 +410,7 @@
     },
     "packages/desktop": {
       "name": "@opencode/desktop",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@zip.js/zip.js": "2.7.62",
         "electron-context-menu": "5.0.0",
@@ -439,7 +440,7 @@
         "drizzle-kit": "catalog:",
         "drizzle-orm": "catalog:",
         "effect": "catalog:",
-        "electron": "44.4.3",
+        "electron": "44.4.5",
         "electron-builder": "26.15.7",
         "electron-vite": "6.0.0-beta.1",
         "puppeteer-core": "25.9.0",
@@ -458,7 +459,7 @@
     },
     "packages/enterprise": {
       "name": "@opencode/enterprise",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@hono/standard-validator": "catalog:",
         "@opencode-ai/sdk": "1.18.21",
@@ -495,7 +496,7 @@
     },
     "packages/function": {
       "name": "@opencode/function",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@octokit/auth-app": "8.0.1",
         "@octokit/rest": "catalog:",
@@ -511,7 +512,7 @@
     },
     "packages/http-recorder": {
       "name": "@opencode/http-recorder",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@effect/platform-node-shared": "4.0.0-rc.112",
       },
@@ -530,7 +531,7 @@
     },
     "packages/httpapi-codegen": {
       "name": "@opencode/httpapi-codegen",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "effect": "catalog:",
         "prettier": "3.6.2",
@@ -543,7 +544,7 @@
     },
     "packages/latex": {
       "name": "@opencode/latex",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@opencode/plugin": "workspace:*",
         "@opentui/core": "catalog:",
@@ -557,7 +558,7 @@
     },
     "packages/merman": {
       "name": "@opencode/merman",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@opencode/plugin": "workspace:*",
         "@opentui/core": "catalog:",
@@ -572,7 +573,7 @@
     },
     "packages/plugin": {
       "name": "@opencode/plugin",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@ai-sdk/provider": "3.0.8",
         "@opencode/ai": "workspace:*",
@@ -598,8 +599,8 @@
       },
       "peerDependencies": {
         "@opencode/theme": "workspace:*",
-        "@opentui/core": ">=0.5.12",
-        "@opentui/solid": ">=0.5.12",
+        "@opentui/core": ">=0.5.14",
+        "@opentui/solid": ">=0.5.14",
         "solid-js": ">=1.9.0",
       },
       "optionalPeers": [
@@ -611,7 +612,7 @@
     },
     "packages/plugin-browser": {
       "name": "@opencode/plugin-browser",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@opencode/plugin": "workspace:*",
         "@opencode/schema": "workspace:*",
@@ -641,7 +642,7 @@
     },
     "packages/protocol": {
       "name": "@opencode/protocol",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@opencode/schema": "workspace:*",
         "effect": "catalog:",
@@ -656,7 +657,7 @@
     },
     "packages/schema": {
       "name": "@opencode/schema",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@standard-schema/spec": "catalog:",
         "effect": "catalog:",
@@ -680,7 +681,7 @@
     },
     "packages/sdk": {
       "name": "@opencode/sdk",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@opencode/client": "workspace:*",
         "@opencode/core": "workspace:*",
@@ -701,7 +702,7 @@
     },
     "packages/server": {
       "name": "@opencode/server",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@effect/platform-node": "catalog:",
         "@effect/platform-node-shared": "catalog:",
@@ -723,7 +724,7 @@
     },
     "packages/session-ui": {
       "name": "@opencode/session-ui",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@kobalte/core": "catalog:",
         "@opencode/client": "workspace:*",
@@ -758,7 +759,7 @@
     },
     "packages/simulation": {
       "name": "@opencode/simulation",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@opencode/ai": "workspace:*",
         "@opencode/core": "workspace:*",
@@ -778,7 +779,7 @@
     },
     "packages/stats/app": {
       "name": "@opencode/stats-app",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@ibm/plex": "6.4.1",
         "@kobalte/core": "catalog:",
@@ -812,7 +813,7 @@
     },
     "packages/stats/core": {
       "name": "@opencode/stats-core",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@aws-sdk/client-athena": "3.933.0",
         "@planetscale/database": "1.19.0",
@@ -831,7 +832,7 @@
     },
     "packages/stats/server": {
       "name": "@opencode/stats-server",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@aws-sdk/client-firehose": "3.933.0",
         "@effect/platform-node": "catalog:",
@@ -877,7 +878,7 @@
     },
     "packages/theme": {
       "name": "@opencode/theme",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@opentui/core": "catalog:",
         "effect": "catalog:",
@@ -891,7 +892,7 @@
     },
     "packages/tui": {
       "name": "@opencode/tui",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@opencode/client": "workspace:*",
         "@opencode/core": "workspace:*",
@@ -925,7 +926,7 @@
     },
     "packages/ui": {
       "name": "@opencode/ui",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@kobalte/core": "catalog:",
         "@pierre/diffs": "catalog:",
@@ -960,7 +961,7 @@
     },
     "packages/util": {
       "name": "@opencode/util",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@effect/opentelemetry": "catalog:",
         "@effect/platform-node": "catalog:",
@@ -998,7 +999,7 @@
     },
     "packages/web": {
       "name": "@opencode/web",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "@astrojs/cloudflare": "12.6.3",
         "@astrojs/markdown-remark": "6.3.1",
@@ -1039,7 +1040,7 @@
     },
     "services/update": {
       "name": "@opencode/update",
-      "version": "2.0.18",
+      "version": "2.0.20",
       "dependencies": {
         "jose": "6.0.11",
         "semver": "catalog:",
@@ -1116,10 +1117,10 @@
     "@npmcli/arborist": "9.4.0",
     "@octokit/rest": "22.0.0",
     "@openauthjs/openauth": "0.0.0-20250322224806",
-    "@opentui/core": "0.5.12",
-    "@opentui/keymap": "0.5.12",
-    "@opentui/solid": "0.5.12",
-    "@pierre/diffs": "1.2.10",
+    "@opentui/core": "0.5.14",
+    "@opentui/keymap": "0.5.14",
+    "@opentui/solid": "0.5.14",
+    "@pierre/diffs": "1.5.1",
     "@playwright/test": "1.59.1",
     "@sentry/solid": "10.71.0",
     "@sentry/vite-plugin": "5.4.0",
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+    "@opentui/solid": ["@opentui/solid@0.5.14", "", { "dependencies": { "@babel/core": "7.28.0", "@babel/preset-typescript": "7.27.1", "@opentui/core": "0.5.14", "babel-plugin-module-resolver": "5.0.2", "babel-preset-solid": "1.9.12", "entities": "7.0.1", "s-js": "^0.4.9" }, "peerDependencies": { "solid-js": "1.9.12" } }, "sha512-bBRl34mZ0wFGhjHX6y1VNiZmJ3DSm2DVPm0PNSVDpvq9qxRHuywEPTCn/Lgte0C9450tgf11cDqcE3pR9cZwVA=="],
 
     "@oslojs/asn1": ["@oslojs/asn1@1.0.0", "", { "dependencies": { "@oslojs/binary": "1.0.0" } }, "sha512-zw/wn0sj0j0QKbIXfIlnEcTviaCzYOY3V5rAyjR6YtOByFtJiT574+8p9Wlach0lZH9fddD4yb9laEAIl4vXQA=="],
 
@@ -2530,11 +2531,11 @@
 
     "@peculiar/webcrypto": ["@peculiar/webcrypto@1.7.1", "", { "dependencies": { "@peculiar/asn1-schema": "^2.7.0", "@peculiar/json-schema": "^1.1.12", "@peculiar/utils": "^2.0.2", "tslib": "^2.8.1", "webcrypto-core": "^1.9.2" } }, "sha512-ODOov0sGMJMf3jPonOkgGqPknTsu+DdQ7kD++gz8aI+aFMOMHFbWAA2taqXXVTdP+OTOQR/znGvSpmkeI0WTYQ=="],
 
-    "@pierre/diffs": ["@pierre/diffs@1.2.10", "", { "dependencies": { "@pierre/theme": "1.0.3", "@pierre/theming": "0.0.1", "@shikijs/transformers": "^3.0.0 || ^4.0.0", "diff": "8.0.3", "hast-util-to-html": "9.0.5", "lru_map": "0.4.1", "shiki": "^3.0.0 || ^4.0.0" }, "peerDependencies": { "react": "^18.3.1 || ^19.0.0", "react-dom": "^18.3.1 || ^19.0.0" } }, "sha512-rPeAmDWarxFVTQpaf4y6wTxjZxU44xKJKoJti2zU21P06DVd9nRHZX+xSIObLB307Qjpaesyb1x/j0z94t7vLw=="],
+    "@pierre/diffs": ["@pierre/diffs@1.5.1", "", { "dependencies": { "@pierre/theme": "2.0.0", "@pierre/theming": "1.0.1", "@shikijs/transformers": "^3.0.0 || ^4.0.0", "diff": "9.0.0", "hast-util-to-html": "9.0.5", "lru_map": "0.4.1", "shiki": "^3.0.0 || ^4.0.0" }, "peerDependencies": { "react": "^18.3.1 || ^19.0.0", "react-dom": "^18.3.1 || ^19.0.0" }, "optionalPeers": ["react", "react-dom"] }, "sha512-+EXNfz4ZXI6FHr7P6ToWEORwyYiPVfAmzhA70xF+0y/oNvj7gbNTLJJ6jNzkBjuMbRlu564TAmgYZLc5OyHURA=="],
 
-    "@pierre/theme": ["@pierre/theme@1.0.3", "", {}, "sha512-sWHv11TMoqKxKDgTIk5VbhQjdPhs8DCcBxbjh3mRlS3YOM/OcrWoGX6MM8eBGn9cUu3M46Py0JnxsG2nJaFTuA=="],
+    "@pierre/theme": ["@pierre/theme@2.0.0", "", {}, "sha512-yNDd9GYLQl1mEUJR8AneJ5e4ohLIHQd/wZLWr4fagt78vS2RwwZNW530vVgHqXFAyFVcFlRmGUD5ramXH46OXw=="],
 
-    "@pierre/theming": ["@pierre/theming@0.0.1", "", { "peerDependencies": { "@pierre/theme": "^1.0.0", "@shikijs/themes": "^3.0.0 || ^4.0.0", "react": "^18.3.1 || ^19.0.0", "react-dom": "^18.3.1 || ^19.0.0", "shiki": "^3.0.0 || ^4.0.0" }, "optionalPeers": ["@pierre/theme", "@shikijs/themes", "react", "react-dom", "shiki"] }, "sha512-1thlEtJbqdyLzc1ZS2KQa1q7FzDGHT4dTEdKHoyQjOMeWWOmbVG5/ndEfOKfAb5Fzkz8cNJrOjFLiZoDH/A03A=="],
+    "@pierre/theming": ["@pierre/theming@1.0.1", "", { "peerDependencies": { "@pierre/theme": "^1.1.0 || ^2.0.0", "@shikijs/themes": "^3.0.0 || ^4.0.0", "react": "^18.3.1 || ^19.0.0", "react-dom": "^18.3.1 || ^19.0.0", "shiki": "^3.0.0 || ^4.0.0" }, "optionalPeers": ["@pierre/theme", "@shikijs/themes", "react", "react-dom", "shiki"] }, "sha512-WCI5Qd7iprDpISL9fBYOLe8RV53+b7mFNA3bPzl60/2CKCSrsKN8zEcep6Y3BAzvARlmca50zGjDodqPGiTUKA=="],
 
     "@pierre/trees": ["@pierre/trees@1.0.0-beta.4", "", { "dependencies": { "preact": "11.0.0-beta.0", "preact-render-to-string": "6.6.5" }, "peerDependencies": { "react": "^18.3.1 || ^19.0.0", "react-dom": "^18.3.1 || ^19.0.0" } }, "sha512-OfT1yk9ne8Te5+GB5zUY8yqE6B8BqjBHQJleH4lu8ltwNpoocZl4vXt1AzlEExpxI/pp+AFX5QG+lR3JjtTEag=="],
 
@@ -3870,7 +3871,7 @@
 
     "ejs": ["ejs@3.1.10", "", { "dependencies": { "jake": "^10.8.5" }, "bin": { "ejs": "bin/cli.js" } }, "sha512-UeJmFfOrAQS8OJWPZ4qtgHyWExa088/MtK5UEyoJGFH67cDEXkZSviOiKRCZ4Xij0zxI3JECgYs3oKx+AizQBA=="],
 
-    "electron": ["electron@44.4.3", "", { "dependencies": { "@electron-internal/extract-zip": "^1.0.1", "@electron/get": "^5.0.0", "@types/node": "^24.9.0" }, "bin": { "electron": "cli.js", "install-electron": "install.js" } }, "sha512-LTpSFTB40qVCXIX5xMo+cgHI/Jjkbjw7VpB26PccEbroqOn72LBukeaDwPVo1fBYzSzs0c9iPuAucFCO7Tw81Q=="],
+    "electron": ["electron@44.4.5", "", { "dependencies": { "@electron-internal/extract-zip": "^1.0.1", "@electron/get": "^5.0.0", "@types/node": "^24.9.0" }, "bin": { "electron": "cli.js", "install-electron": "install.js" } }, "sha512-SjgoaeYsSWZfJzubgQU7juvuXMTvn6/e1gAHdGFA/yuMbpF+I+skYqIJ6DdXBXHeWbkbpNpmwZCTpiivtlWZSw=="],
 
     "electron-builder": ["electron-builder@26.15.7", "", { "dependencies": { "app-builder-lib": "26.15.7", "builder-util": "26.15.3", "builder-util-runtime": "9.7.0", "chalk": "^4.1.2", "ci-info": "^4.2.0", "dmg-builder": "26.15.7", "fs-extra": "^10.1.0", "lazy-val": "^1.0.5", "simple-update-notifier": "2.0.0", "yargs": "^17.6.2" }, "bin": { "electron-builder": "./cli.js", "install-app-deps": "./install-app-deps.js" } }, "sha512-DBpaNzxsPs1BvEblzFoNriSbzsBqDCy/gseIngeEhYzQG1IxfB7Hvc2tBBVmpWE2BTQGP9J1RrAvDT+Vc/uAxg=="],
 
@@ -6258,11 +6259,7 @@
 
     "@parcel/watcher/detect-libc": ["detect-libc@1.0.3", "", { "bin": { "detect-libc": "./bin/detect-libc.js" } }, "sha512-pGjwhsmsp4kL2RTz08wcOlGN83otlqHeD/Z5T8GXZB+/YcpQ/dgo+lbU8ZsGxV0HIvqqxo9l7mqYwyYMD9bKDg=="],
 
-    "@pierre/diffs/diff": ["diff@8.0.3", "", {}, "sha512-qejHi7bcSD4hQAZE0tNAawRK1ZtafHDmMTMkrrIGgSLl7hTnQHmKCeB45xAcbfTqK2zowkM3j3bHt/4b/ARbYQ=="],
-
-    "@pierre/diffs/react": ["react@19.2.8", "", {}, "sha512-PWaYA1L/q9u2u7xYQi+Y3L3Yfnie7XyLeaJICV1MGD6LprsBxcAqGjYyr0eY3p+QdsA+x/Irkt4Qif8D63+Sbw=="],
-
-    "@pierre/diffs/react-dom": ["react-dom@19.2.8", "", { "dependencies": { "scheduler": "^0.27.0" }, "peerDependencies": { "react": "^19.2.8" } }, "sha512-rVprimfGBG3DR+Tq0IQG2DT5PxKth1WIGDmj5yPmlzr4YBe7uyE+Du4oVqTDXZSHGGGXRtTJEGSSePyQCMBglQ=="],
+    "@pierre/diffs/diff": ["diff@9.0.0", "", {}, "sha512-svtcdpS8CgJyqAjEQIXdb3OjhFVVYjzGAPO8WGCmRbrml64SPw/jJD4GoE98aR7r25A0XcgrK3F02yw9R/vhQw=="],
 
     "@pierre/trees/react": ["react@19.2.8", "", {}, "sha512-PWaYA1L/q9u2u7xYQi+Y3L3Yfnie7XyLeaJICV1MGD6LprsBxcAqGjYyr0eY3p+QdsA+x/Irkt4Qif8D63+Sbw=="],
 
@@ -7160,8 +7157,6 @@
 
     "@oxc-resolver/binding-wasm32-wasi/@emnapi/core/@emnapi/wasi-threads": ["@emnapi/wasi-threads@1.2.2", "", { "dependencies": { "tslib": "^2.4.0" } }, "sha512-c95qOXkHdydNKhscBTebqEC1CVAZpyqOfVfBzQ1qgzyl3gfeldUjIggDbIZgDKsHLgnsM+igH7TJ/eAasaVuMA=="],
 
-    "@pierre/diffs/react-dom/scheduler": ["scheduler@0.27.0", "", {}, "sha512-eNv+WrVbKu1f3vbYJT/xtiF5syA5HPIMtf9IgY/nKg0sWqzAUEvqY/xm7OcZc/qafLx/iO9FgOmeSAp4v5ti/Q=="],
-
     "@pierre/trees/react-dom/scheduler": ["scheduler@0.27.0", "", {}, "sha512-eNv+WrVbKu1f3vbYJT/xtiF5syA5HPIMtf9IgY/nKg0sWqzAUEvqY/xm7OcZc/qafLx/iO9FgOmeSAp4v5ti/Q=="],
 
     "@puppeteer/browsers/yargs/cliui": ["cliui@9.0.1", "", { "dependencies": { "string-width": "^7.2.0", "strip-ansi": "^7.1.0", "wrap-ansi": "^9.0.0" } }, "sha512-k7ndgKhwoQveBL+/1tqGJYNz097I7WOvwbmmU2AR5+magtbjPWQTS1C5vzGkBC8Ym8UWRzfKUzUUqFLypY4Q+w=="],

package.json

@@ -2,7 +2,7 @@
   "$schema": "https://json.schemastore.org/package.json",
   "name": "opencode",
   "description": "AI-powered development tool",
-  "version": "2.0.18",
+  "version": "2.0.20",
   "private": true,
   "type": "module",
   "packageManager": "bun@1.4.2",
@@ -52,9 +52,9 @@
       "@octokit/rest": "22.0.0",
       "@hono/standard-validator": "0.2.0",
       "@hono/zod-validator": "0.4.2",
-      "@opentui/core": "0.5.12",
-      "@opentui/keymap": "0.5.12",
-      "@opentui/solid": "0.5.12",
+      "@opentui/core": "0.5.14",
+      "@opentui/keymap": "0.5.14",
+      "@opentui/solid": "0.5.14",
       "@tanstack/solid-virtual": "3.13.37",
       "@shikijs/stream": "4.4.3",
       "@standard-schema/spec": "1.1.0",
@@ -68,7 +68,7 @@
       "@tsconfig/bun": "1.0.9",
       "@cloudflare/workers-types": "4.20251008.0",
       "@openauthjs/openauth": "0.0.0-20250322224806",
-      "@pierre/diffs": "1.2.10",
+      "@pierre/diffs": "1.5.1",
       "opentui-spinner": "0.0.7",
       "@solid-primitives/event-listener": "2.4.6",
       "@solid-primitives/media": "2.3.6",

packages/ai/package.json

@@ -1,6 +1,6 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
-  "version": "2.0.18",
+  "version": "2.0.20",
   "name": "@opencode/ai",
   "type": "module",
   "license": "MIT",

packages/ai/src/cache-policy.ts

@@ -38,13 +38,30 @@ const resolve = (policy: CachePolicy | undefined): CachePolicyObject => {
 // prefix caching, Gemini's implicit + out-of-band CachedContent). Skip the
 // whole policy pass for these — emitting hints would be harmless but pointless.
 const RESPECTS_INLINE_HINTS = new Set([
+  "alibaba-messages",
   "anthropic-messages",
   "anthropic-compatible-messages",
+  "cloudflare-ai-gateway-messages",
   "google-vertex-messages",
+  "meta-messages",
+  "minimax-messages",
+  "moonshot-messages",
+  "zai-coding-messages",
   "bedrock-converse",
   "openrouter",
 ])
 
+// OpenRouter upstreams other than Anthropic and Alibaba Qwen cache without breakpoints. Gemini uses only the last
+// breakpoint, so a conversation-tail breakpoint writes a new cache every step and costs more than none. Qwen ignores
+// breakpoints on tool definitions and caches tools with the system prompt.
+const openRouterPolicy = (modelID: string): CachePolicyObject => {
+  // `~anthropic/claude-sonnet-latest` style IDs are OpenRouter aliases for the latest model in a family.
+  const id = modelID.replace(/^~/, "")
+  if (id.startsWith("anthropic/")) return AUTO
+  if (id.startsWith("qwen/")) return { system: true, messages: { tail: 1 } }
+  return NONE
+}
+
 const makeHint = (ttlSeconds: number | undefined): CacheHint =>
   ttlSeconds !== undefined ? new CacheHint({ type: "ephemeral", ttlSeconds }) : new CacheHint({ type: "ephemeral" })
 
@@ -150,9 +167,10 @@ const countHints = (request: LLMRequest) =>
 
 export const applyCachePolicy = (request: LLMRequest): LLMRequest => {
   if (!RESPECTS_INLINE_HINTS.has(request.model.route.id)) return request
-  if (request.model.route.id === "openrouter" && (request.cache === undefined || request.cache === "auto"))
-    return request
-  const policy = resolve(request.cache)
+  const policy =
+    request.model.route.id === "openrouter" && (request.cache === undefined || request.cache === "auto")
+      ? openRouterPolicy(request.model.id)
+      : resolve(request.cache)
   if (!policy.tools && !policy.system && !policy.messages) return request
 
   const hint = makeHint(policy.ttlSeconds)

packages/ai/src/protocols/anthropic-messages.ts

@@ -29,6 +29,7 @@ import { JsonObject, knownString, optionalArray, optionalNull, ProviderShared }
 import { classifyProviderFailure } from "../provider-error.js"
 import { effortUpdate, resolveEffortUpdates } from "../effort-updates.js"
 import * as Cache from "./utils/cache.js"
+import { claudeVersion, supportsThinkingBlockBinding, THINKING_BINDING_BETA } from "./utils/claude-model.js"
 import { Lifecycle } from "./utils/lifecycle.js"
 import { ToolStream } from "./utils/tool-stream.js"
 
@@ -988,22 +989,6 @@ const lowerMessages = Effect.fn("AnthropicMessages.lowerMessages")(function* (
   return messages
 })
 
-// Accept gateway namespaces and Vertex suffixes without treating a snapshot date as a minor version.
-const claudeVersion = (id: string) => {
-  const match = /(?:^|[./])claude-(?<family>[a-z]+)-(?<major>\d+)(?:[.-](?<minor>\d{1,2}))?(?:$|[-:@])/.exec(
-    id.toLowerCase(),
-  )?.groups
-  if (!match) return undefined
-  return { family: match.family, major: Number(match.major), minor: Number(match.minor ?? 0) }
-}
-
-const supportsThinkingBlockBinding = (model: LLMRequest["model"]) => {
-  const override = model.compatibility?.supportsThinkingBlockBinding
-  if (override !== undefined) return override
-  const version = claudeVersion(model.id)
-  return version !== undefined && (version.major > 5 || (version.major === 5 && version.minor >= 1))
-}
-
 const supportsEffortUpdates = (model: LLMRequest["model"]) => {
   const override = model.compatibility?.supportsEffortUpdates
   if (override !== undefined) return override
@@ -1652,8 +1637,7 @@ function requiredBetaHeaders(body: Pick<AnthropicMessagesBody, "messages" | "con
     betas.push("mid-conversation-output-config-2026-07-01")
 
   const thinking = body.thinking
-  if (thinking && thinking.type !== "disabled" && thinking.block_binding)
-    betas.push("thinking-binding-controls-2026-08-01")
+  if (thinking && thinking.type !== "disabled" && thinking.block_binding) betas.push(THINKING_BINDING_BETA)
   return betas
 }
 

packages/ai/src/protocols/bedrock-converse.ts

@@ -23,6 +23,7 @@ import { JsonObject, optionalArray, ProviderShared } from "./shared.js"
 import { BedrockAuth } from "./utils/bedrock-auth.js"
 import { BedrockCache } from "./utils/bedrock-cache.js"
 import { BedrockMedia } from "./utils/bedrock-media.js"
+import { supportsThinkingBlockBinding, THINKING_BINDING_BETA } from "./utils/claude-model.js"
 import { Lifecycle } from "./utils/lifecycle.js"
 import { MistralToolID } from "./utils/mistral-tool-id.js"
 import { ToolStream } from "./utils/tool-stream.js"
@@ -443,6 +444,23 @@ const decodeOptions = ProviderShared.validateWith(Schema.decodeUnknownEffect(Opt
 // Claude on Bedrock requires the thinking budget below `maxTokens`, with a minimum of 1,024.
 const MIN_THINKING_BUDGET = 1_024
 
+const isThinkingDisabled = Schema.is(
+  Schema.Struct({
+    additionalModelRequestFields: Schema.Struct({ thinking: Schema.Struct({ type: Schema.Literal("disabled") }) }),
+  }),
+)
+
+// Claude 5.1+ binds each thinking signature to the prefix above it. Ask Bedrock to drop the affected blocks instead of
+// failing when that prefix changes. `http.body` overlays this field by field, so callers can still override it.
+const applyThinkingBindingDefault = (request: LLMRequest, thinking: Readonly<Record<string, unknown>> | undefined) => {
+  if (isThinkingDisabled(request.http?.body)) return thinking
+  if (!supportsThinkingBlockBinding(request.model)) return thinking
+  return {
+    ...(thinking ?? { type: "adaptive" as const }),
+    block_binding: { prefix_mismatch_behavior: "drop_block" },
+  }
+}
+
 const fromRequest = Effect.fn("BedrockConverse.fromRequest")(function* (request: LLMRequest) {
   const toolChoice = request.toolChoice ? yield* lowerToolChoice(request.toolChoice) : undefined
   const flattened = ProviderShared.flattenToolRequest(request)
@@ -450,7 +468,8 @@ const fromRequest = Effect.fn("BedrockConverse.fromRequest")(function* (request:
   const options = yield* decodeOptions(request.providerOptions ?? {})
   const maxTokens =
     isNova2(request.model) && isHighReasoningEffort(request.http?.body) ? undefined : generation?.maxTokens
-  const thinking =
+  const thinking = applyThinkingBindingDefault(
+    request,
     options.thinking === undefined
       ? undefined
       : {
@@ -460,7 +479,8 @@ const fromRequest = Effect.fn("BedrockConverse.fromRequest")(function* (request:
             maxTokens,
             MIN_THINKING_BUDGET,
           ),
-        }
+        },
+  )
   // Bedrock-Claude shares Anthropic's 4-breakpoint cap. Spend the budget in
   // tools → system → messages order to favour the highest-impact prefixes.
   const breakpoints = BedrockCache.breakpoints(request.model.id)
@@ -509,6 +529,8 @@ const fromRequest = Effect.fn("BedrockConverse.fromRequest")(function* (request:
         : {
             ...(generation?.topK === undefined ? {} : { top_k: generation.topK }),
             ...(thinking === undefined ? {} : { thinking }),
+            // Converse takes Anthropic betas in the body, and Bedrock rejects `block_binding` without this one.
+            ...(thinking?.block_binding === undefined ? {} : { anthropic_beta: [THINKING_BINDING_BETA] }),
           },
   }
 })
@@ -555,7 +577,7 @@ interface ParserState {
   readonly hasToolCalls: boolean
   readonly lifecycle: Lifecycle.State
   readonly reasoningSignatures: Readonly<Record<number, string>>
-  readonly reasoningRedactedContent: Readonly<Record<number, ReadonlyArray<Uint8Array>>>
+  readonly reasoningRedactedContent: Readonly<Record<number, Uint8Array[]>>
 }
 
 const encodeRedactedContent = (chunks: ReadonlyArray<Uint8Array>) => Encoding.encodeBase64(concatBytes(chunks))
@@ -605,10 +627,9 @@ const step = (state: ParserState, event: BedrockEvent) =>
       const index = event.contentBlockDelta.contentBlockIndex
       const reasoning = event.contentBlockDelta.delta.reasoningContent
       const events: LLMEvent[] = []
-      const redactedChunks = yield* (() => {
+      const redactedChunk = yield* (() => {
         if (reasoning.redactedContent === undefined) return Effect.succeed(undefined)
         return Effect.fromResult(Encoding.decodeBase64(reasoning.redactedContent)).pipe(
-          Effect.map((chunk) => [...(state.reasoningRedactedContent[index] ?? []), chunk]),
           Effect.mapError((cause) =>
             ProviderShared.eventError(
               ADAPTER,
@@ -619,17 +640,21 @@ const step = (state: ParserState, event: BedrockEvent) =>
           ),
         )
       })()
-      const redactedData = redactedChunks === undefined ? reasoning.data : encodeRedactedContent(redactedChunks)
+      const redactedChunks = state.reasoningRedactedContent[index] ?? []
+      if (redactedChunk !== undefined) redactedChunks.push(redactedChunk)
       const metadata = (() => {
         if (reasoning.signature) return providerMetadata(state.providerMetadataKey, { signature: reasoning.signature })
-        if (redactedData !== undefined) return providerMetadata(state.providerMetadataKey, { redactedData })
+        if (redactedChunk === undefined && reasoning.data !== undefined)
+          return providerMetadata(state.providerMetadataKey, { redactedData: reasoning.data })
       })()
       const lifecycle = (() => {
-        if (reasoning.text === undefined && metadata === undefined) return state.lifecycle
-        return Lifecycle.reasoningDelta(state.lifecycle, events, `reasoning-${index}`, reasoning.text ?? "", metadata)
+        if (reasoning.text !== undefined || metadata !== undefined)
+          return Lifecycle.reasoningDelta(state.lifecycle, events, `reasoning-${index}`, reasoning.text ?? "", metadata)
+        if (redactedChunk !== undefined) return Lifecycle.reasoningStart(state.lifecycle, events, `reasoning-${index}`)
+        return state.lifecycle
       })()
       const reasoningRedactedContent = (() => {
-        if (redactedChunks !== undefined) return { ...state.reasoningRedactedContent, [index]: redactedChunks }
+        if (redactedChunk !== undefined) return { ...state.reasoningRedactedContent, [index]: redactedChunks }
         if (reasoning.data === undefined) return state.reasoningRedactedContent
         return Object.fromEntries(
           Object.entries(state.reasoningRedactedContent).filter(([key]) => key !== String(index)),
@@ -765,7 +790,19 @@ const onHalt = (state: ParserState): ReadonlyArray<LLMEvent> => {
     return state.finishReason.normalized
   })()
   const events: LLMEvent[] = []
-  Lifecycle.finish(state.lifecycle, events, {
+  const lifecycle = Object.entries(state.reasoningRedactedContent).reduce((current, [index, chunks]) => {
+    const signature = state.reasoningSignatures[Number(index)]
+    return Lifecycle.reasoningEnd(
+      current,
+      events,
+      `reasoning-${index}`,
+      providerMetadata(
+        state.providerMetadataKey,
+        signature ? { signature } : { redactedData: encodeRedactedContent(chunks) },
+      ),
+    )
+  }, state.lifecycle)
+  Lifecycle.finish(lifecycle, events, {
     reason: {
       ...state.finishReason,
       normalized,

packages/ai/src/protocols/meta-messages.ts

@@ -10,14 +10,19 @@ const WebSearch = Schema.Struct({
   name: Schema.Literal("web_search"),
   user_location: MetaResponses.WebSearch.fields.user_location,
 })
+const MetaCacheControl = Schema.Struct({
+  type: Schema.tag("ephemeral"),
+  ttl: Schema.optional(Schema.Literals(["5m", "1h"])),
+})
+const FunctionTool = Schema.Struct({
+  name: Schema.String,
+  description: Schema.String,
+  input_schema: JsonObject,
+  cache_control: Schema.optional(MetaCacheControl),
+})
 const Body = Schema.Struct({
   ...AnthropicMessages.AnthropicMessagesBody.fields,
-  tools: optionalArray(
-    Schema.Union([
-      Schema.Struct({ name: Schema.String, description: Schema.String, input_schema: JsonObject }),
-      WebSearch,
-    ]),
-  ),
+  tools: optionalArray(Schema.Union([FunctionTool, WebSearch])),
 })
 
 const fromRequest = Effect.fn("MetaMessages.fromRequest")(function* (request: LLMRequest) {

packages/ai/src/protocols/mistral-chat.ts

@@ -426,6 +426,7 @@ interface ActiveContent {
   readonly type: "text" | "reasoning"
   readonly id: string
   readonly thinking?: MistralThinkingContent
+  readonly thinkingUnits?: MistralThinkingUnit[]
 }
 
 export interface ParserState {
@@ -502,8 +503,8 @@ const closeActive = (state: ParserState, events: LLMEvent[]) => {
           state.lifecycle,
           events,
           state.active.id,
-          thinkingMetadata(state.active.thinking ?? { type: "thinking", thinking: [] }),
-          thinkingText(state.active.thinking?.thinking ?? []),
+          thinkingMetadata({ ...state.active.thinking, type: "thinking", thinking: state.active.thinkingUnits ?? [] }),
+          thinkingText(state.active.thinkingUnits ?? []),
         )
   return { ...state, lifecycle, active: undefined }
 }
@@ -524,20 +525,23 @@ const appendThinking = (state: ParserState, events: LLMEvent[], part: MistralOut
   const current = state.active?.type === "reasoning" ? state : closeActive(state, events)
   const units = thinkingUnits(part.thinking)
   const active = current.active ?? { type: "reasoning" as const, id: `reasoning-${current.nextContent}` }
+  // Keep native units out of streamed events until the block is complete.
+  const accumulated = active.thinkingUnits ?? []
+  accumulated.push(...units)
   const thinking = {
     ...active.thinking,
     ...part,
     type: "thinking" as const,
-    thinking: [...(active.thinking?.thinking ?? []), ...units],
+    thinking: [],
   }
   const text = thinkingText(units)
   return {
     ...current,
     lifecycle:
       text.length > 0
-        ? Lifecycle.reasoningDelta(current.lifecycle, events, active.id, text, thinkingMetadata(thinking))
-        : Lifecycle.reasoningStart(current.lifecycle, events, active.id, thinkingMetadata(thinking)),
-    active: { ...active, thinking },
+        ? Lifecycle.reasoningDelta(current.lifecycle, events, active.id, text)
+        : Lifecycle.reasoningStart(current.lifecycle, events, active.id),
+    active: { ...active, thinking, thinkingUnits: accumulated },
     nextContent: current.active ? current.nextContent : current.nextContent + 1,
   }
 }

packages/ai/src/protocols/openai-chat.ts

@@ -20,7 +20,6 @@ import {
   type LLMRequest,
   type MediaPart,
   type ReasoningPart,
-  type TextPart,
   type ToolCallPart,
   type ToolDefinition,
 } from "../schema/index.js"
@@ -45,6 +44,7 @@ const OpenAIChatCacheControl = Schema.Struct({
   type: Schema.Literal("ephemeral"),
   ttl: Schema.optional(Schema.String),
 })
+type OpenAIChatCacheControl = Schema.Schema.Type<typeof OpenAIChatCacheControl>
 
 const OpenAIChatFunction = Schema.Struct({
   name: Schema.String,
@@ -121,12 +121,15 @@ const decodeReasoningDetail = Schema.decodeUnknownOption(ReasoningDetail)
 const knownReasoningDetails = (details: ReadonlyArray<unknown>) =>
   details.flatMap((detail) => Option.toArray(decodeReasoningDetail(detail)))
 
+const OpenAIChatTextContent = Schema.Struct({
+  type: Schema.Literal("text"),
+  text: Schema.String,
+  cache_control: Schema.optional(OpenAIChatCacheControl),
+})
+type OpenAIChatTextContent = Schema.Schema.Type<typeof OpenAIChatTextContent>
+
 const OpenAIChatUserContent = Schema.Union([
-  Schema.Struct({
-    type: Schema.Literal("text"),
-    text: Schema.String,
-    cache_control: Schema.optional(OpenAIChatCacheControl),
-  }),
+  OpenAIChatTextContent,
   Schema.Struct({
     type: Schema.Literal("image_url"),
     image_url: Schema.Struct({ url: Schema.String }),
@@ -136,6 +139,7 @@ const OpenAIChatUserContent = Schema.Union([
     file: Schema.Struct({ filename: Schema.String, file_data: Schema.String }),
   }),
 ])
+type OpenAIChatUserContent = Schema.Schema.Type<typeof OpenAIChatUserContent>
 
 const OpenAIChatMessage = Schema.Union([
   Schema.Struct({
@@ -149,21 +153,19 @@ const OpenAIChatMessage = Schema.Union([
   Schema.StructWithRest(
     Schema.Struct({
       role: Schema.Literal("assistant"),
-      content: Schema.NullOr(Schema.String),
+      content: Schema.NullOr(Schema.Union([Schema.String, Schema.Array(OpenAIChatTextContent)])),
       tool_calls: optionalArray(OpenAIChatAssistantToolCall),
       reasoning_content: Schema.optional(Schema.String),
       reasoning: Schema.optional(Schema.String),
       reasoning_text: Schema.optional(Schema.String),
       reasoning_details: Schema.optional(Schema.Unknown),
-      cache_control: Schema.optional(OpenAIChatCacheControl),
     }),
     [Schema.Record(Schema.String, Schema.Unknown)],
   ),
   Schema.Struct({
     role: Schema.Literal("tool"),
     tool_call_id: Schema.String,
-    content: Schema.String,
-    cache_control: Schema.optional(OpenAIChatCacheControl),
+    content: Schema.Union([Schema.String, Schema.Array(OpenAIChatTextContent)]),
   }),
 ]).pipe(Schema.toTaggedUnion("role"))
 type OpenAIChatMessage = Schema.Schema.Type<typeof OpenAIChatMessage>
@@ -327,9 +329,7 @@ export interface ParserState {
 // OpenAI Chat wire format. Keep provider quirks here instead of leaking native
 // fields into `LLMRequest`.
 interface LoweringOptions {
-  readonly cacheControl?: (
-    cache: CacheHint | undefined,
-  ) => Schema.Schema.Type<typeof OpenAIChatCacheControl> | undefined
+  readonly cacheControl?: (cache: CacheHint | undefined) => OpenAIChatCacheControl | undefined
   readonly toolCallID?: (id: string) => string
 }
 
@@ -415,7 +415,7 @@ const lowerUserMessage = Effect.fn("OpenAIChat.lowerUserMessage")(function* (
   message: OpenAIChatRequestMessage,
   options: LoweringOptions,
 ) {
-  const content: Array<Schema.Schema.Type<typeof OpenAIChatUserContent>> = []
+  const content: OpenAIChatUserContent[] = []
   for (const part of message.content) {
     if (part.type === "text") {
       content.push({ type: "text", text: part.text, cache_control: options.cacheControl?.(part.cache) })
@@ -441,14 +441,14 @@ const lowerAssistantMessage = Effect.fn("OpenAIChat.lowerAssistantMessage")(func
   requireReasoning: boolean,
   options: LoweringOptions & { readonly providerMetadataKey: string },
 ) {
-  const content: TextPart[] = []
+  const content: OpenAIChatTextContent[] = []
   const reasoning: ReasoningPart[] = []
   const toolCalls: OpenAIChatAssistantToolCall[] = []
   for (const part of message.content) {
     if (!ProviderShared.supportsContent(part, ["text", "reasoning", "tool-call"]))
       return yield* ProviderShared.unsupportedContent("OpenAI Chat", "assistant", ["text", "reasoning", "tool-call"])
     if (part.type === "text") {
-      content.push(part)
+      content.push({ type: "text", text: part.text, cache_control: options.cacheControl?.(part.cache) })
       continue
     }
     if (part.type === "reasoning") {
@@ -486,14 +486,15 @@ const lowerAssistantMessage = Effect.fn("OpenAIChat.lowerAssistantMessage")(func
     if (reasoning.length === 0) return nativeReasoning ?? (requireReasoning ? "" : undefined)
     return text
   })()
-  const cached = message.content.findLast((part) => "cache" in part && part.cache !== undefined)
-  const cacheControl = options.cacheControl?.(cached && "cache" in cached ? cached.cache : undefined)
   const result = {
     role: "assistant" as const,
-    content: content.length > 0 ? content.map((part) => part.text).join("") : toolCalls.length > 0 ? null : "",
+    content: (() => {
+      if (content.some((part) => part.cache_control !== undefined)) return content
+      if (content.length === 0 && toolCalls.length > 0) return null
+      return content.map((part) => part.text).join("")
+    })(),
     ...(toolCalls.length > 0 ? { tool_calls: toolCalls } : {}),
     ...(details !== undefined ? { reasoning_details: details } : {}),
-    ...(cacheControl !== undefined ? { cache_control: cacheControl } : {}),
   }
   if (field === undefined || reasoningText === undefined) return result
   return { ...result, [field]: reasoningText }
@@ -504,33 +505,38 @@ const lowerToolMessages = Effect.fn("OpenAIChat.lowerToolMessages")(function* (
   options: LoweringOptions,
 ) {
   const messages: OpenAIChatMessage[] = []
-  const attachments: Array<Schema.Schema.Type<typeof OpenAIChatUserContent>> = []
+  const attachments: OpenAIChatUserContent[] = []
   for (const part of message.content) {
     if (!ProviderShared.supportsContent(part, ["tool-result"]))
       return yield* ProviderShared.unsupportedContent("OpenAI Chat", "tool", ["tool-result"])
     if (part.result.type !== "content") {
-      messages.push({
-        role: "tool",
-        tool_call_id: options.toolCallID?.(part.id) ?? part.id,
-        content: ProviderShared.toolResultText(part),
-        cache_control: options.cacheControl?.(part.cache),
-      })
+      messages.push(
+        toolMessage(
+          options.toolCallID?.(part.id) ?? part.id,
+          ProviderShared.toolResultText(part),
+          options.cacheControl?.(part.cache),
+        ),
+      )
       continue
     }
     const content: ReadonlyArray<Tool.Content> = part.result.value
     const text = content.filter((item) => item.type === "text").map((item) => item.text)
-    messages.push({
-      role: "tool",
-      tool_call_id: options.toolCallID?.(part.id) ?? part.id,
-      content: text.join("\n"),
-      cache_control: options.cacheControl?.(part.cache),
-    })
+    messages.push(
+      toolMessage(options.toolCallID?.(part.id) ?? part.id, text.join("\n"), options.cacheControl?.(part.cache)),
+    )
     const files = content.filter((item) => item.type === "file")
     attachments.push(...(yield* Effect.forEach(files, (item) => lowerMedia(ProviderShared.toolFileMedia(item)))))
   }
   return { messages, attachments }
 })
 
+// Chat cache breakpoints belong on text content parts, not on the message itself.
+const toolMessage = (toolCallID: string, text: string, cacheControl: OpenAIChatCacheControl | undefined) => ({
+  role: "tool" as const,
+  tool_call_id: toolCallID,
+  content: cacheControl === undefined ? text : [{ type: "text" as const, text, cache_control: cacheControl }],
+})
+
 const lowerMessage = Effect.fn("OpenAIChat.lowerMessage")(function* (
   message: OpenAIChatRequestMessage,
   reasoningField: string | undefined,
@@ -589,7 +595,7 @@ const lowerMessages = Effect.fn("OpenAIChat.lowerMessages")(function* (request:
     if (requireAssistantAfterTool && messages.at(-1)?.role === "tool")
       messages.push({ role: "assistant", content: "Done." })
   }
-  const pendingAttachments: Array<Schema.Schema.Type<typeof OpenAIChatUserContent>> = []
+  const pendingAttachments: OpenAIChatUserContent[] = []
   const flushAttachments = () => {
     if (pendingAttachments.length === 0) return
     bridgeTools()
@@ -599,24 +605,25 @@ const lowerMessages = Effect.fn("OpenAIChat.lowerMessages")(function* (request:
     if (message.role === "user") bridgeTools()
     if (message.role === "system") {
       const part = yield* ProviderShared.wrappedSystemUpdate("OpenAI Chat", message)
+      const cacheControl = options.cacheControl?.(part.cache)
       if (pendingAttachments.length > 0) {
         messages.push({
           role: "user",
           content: [
             ...pendingAttachments.splice(0),
-            { type: "text", text: part.text, cache_control: options.cacheControl?.(part.cache) },
+            { type: "text", text: part.text, cache_control: cacheControl },
           ],
         })
         continue
       }
       const previous = messages.at(-1)
       if (previous?.role === "user" && typeof previous.content === "string")
-        messages[messages.length - 1] = options.cacheControl?.(part.cache)
+        messages[messages.length - 1] = cacheControl
           ? {
               role: "user",
               content: [
                 { type: "text", text: previous.content },
-                { type: "text", text: part.text, cache_control: options.cacheControl(part.cache) },
+                { type: "text", text: part.text, cache_control: cacheControl },
               ],
             }
           : { role: "user", content: `${previous.content}\n${part.text}` }
@@ -625,15 +632,15 @@ const lowerMessages = Effect.fn("OpenAIChat.lowerMessages")(function* (request:
           role: "user",
           content: [
             ...previous.content,
-            { type: "text", text: part.text, cache_control: options.cacheControl?.(part.cache) },
+            { type: "text", text: part.text, cache_control: cacheControl },
           ],
         }
       else
         messages.push(
-          options.cacheControl?.(part.cache)
+          cacheControl
             ? {
                 role: "user",
-                content: [{ type: "text", text: part.text, cache_control: options.cacheControl(part.cache) }],
+                content: [{ type: "text", text: part.text, cache_control: cacheControl }],
               }
             : { role: "user", content: part.text },
         )

packages/ai/src/protocols/utils/claude-model.ts

@@ -0,0 +1,19 @@
+import type { LLMRequest } from "../../schema/index.js"
+
+export const THINKING_BINDING_BETA = "thinking-binding-controls-2026-08-01"
+
+// Accept gateway namespaces and Vertex suffixes without treating a snapshot date as a minor version.
+export const claudeVersion = (id: string) => {
+  const match = /(?:^|[./])claude-(?<family>[a-z]+)-(?<major>\d+)(?:[.-](?<minor>\d{1,2}))?(?:$|[-:@])/.exec(
+    id.toLowerCase(),
+  )?.groups
+  if (!match) return undefined
+  return { family: match.family, major: Number(match.major), minor: Number(match.minor ?? 0) }
+}
+
+export const supportsThinkingBlockBinding = (model: LLMRequest["model"]) => {
+  const override = model.compatibility?.supportsThinkingBlockBinding
+  if (override !== undefined) return override
+  const version = claudeVersion(model.id)
+  return version !== undefined && (version.major > 5 || (version.major === 5 && version.minor >= 1))
+}

packages/ai/src/provider-error.ts

@@ -1,4 +1,4 @@
-import { Option, Schema } from "effect"
+import { Option, Schema, SchemaGetter } from "effect"
 import {
   AuthenticationError,
   ContentPolicyError,
@@ -16,12 +16,18 @@ import {
 const patterns = [
   /prompt is too long/i,
   /input is too long for requested model/i,
+  // Cloudflare Workers AI reports this as HTTP 413.
+  /exceeded this model context window limit/i,
   /exceeds the context window/i,
   /exceeds (?:the )?(?:model'?s )?maximum context length(?: of [\d,]+ tokens?|\s*\([\d,]+\))/i,
   /input token count.*exceeds the maximum/i,
+  // Amazon Nova on Bedrock reports this as a mid-stream validationException.
+  /number of input tokens exceeds maximum length/i,
   /tokens in request more than max tokens allowed/i,
   /maximum prompt length is \d+/i,
   /reduce the length of the messages/i,
+  // DeepInfra
+  /requested input length \d+ exceeds maximum input length/i,
   /maximum context length is \d+ tokens/i,
   /exceeds (?:the )?maximum allowed input length of [\d,]+ tokens?/i,
   /input \(\d+ tokens\) is longer than the model'?s context length \(\d+ tokens\)/i,
@@ -155,6 +161,41 @@ const CONTENT_POLICY_TEXT =
 const SERVER_ERROR_TEXT =
   /\b(?:try again|(?:please |you can )?retry (?:the |this |your )?request|try (?:the |this |your )?request again|(?:currently |temporarily )?at capacity|overloaded|temporarily unavailable|service[-_\s]?unavailable|(?:server|internal)[-_\s]?error|server (?:is )?busy|provider returned (?:an )?error|resource[-_\s]?exhausted|upstream (?:connect|connection|request)|request buffer limit while retrying upstream)\b/i
 
+const Message = Schema.String.check(Schema.isPattern(/\S/))
+
+const messageAt = <Fields extends Schema.Struct.Fields>(
+  fields: Fields,
+  message: (body: Schema.Struct<Fields>["Type"]) => string,
+) =>
+  Schema.Struct(fields).pipe(
+    Schema.decodeTo(Schema.String, {
+      decode: SchemaGetter.transform(message),
+      encode: SchemaGetter.forbidden(() => "Provider error messages are decode-only"),
+    }),
+  )
+
+// Common error body layouts that carry a human-readable message, in priority order.
+// Provider-specific layouts belong in their protocol.
+const decodeMessage = Schema.decodeUnknownOption(
+  Schema.fromJsonString(
+    Schema.Union([
+      messageAt({ error: Schema.Struct({ message: Message }) }, (body) => body.error.message),
+      messageAt({ error: Message }, (body) => body.error),
+      messageAt({ message: Message }, (body) => body.message),
+      // AWS services
+      messageAt({ Message: Message }, (body) => body.Message),
+      // RFC 9457 problem details
+      messageAt({ detail: Message }, (body) => body.detail),
+      messageAt(
+        { errors: Schema.NonEmptyArray(Schema.Struct({ message: Message })) },
+        (body) => body.errors[0].message,
+      ),
+    ]),
+  ),
+)
+
+export const providerErrorMessage = (body: string) => Option.getOrUndefined(decodeMessage(body))
+
 export interface ProviderFailure {
   readonly message: string
   readonly status?: number | undefined

packages/ai/src/route/executor.ts

@@ -8,7 +8,7 @@ import {
   HttpClientResponse,
 } from "effect/unstable/http"
 import { HttpContext, HttpRateLimitDetails, AIError, TransportError } from "../schema/index.js"
-import { classifyProviderFailure } from "../provider-error.js"
+import { classifyProviderFailure, providerErrorMessage } from "../provider-error.js"
 import { Service, type HttpMiddleware, type Interface } from "./executor-service.js"
 
 export { Service } from "./executor-service.js"
@@ -84,21 +84,17 @@ export const responseHttp = (response: HttpClientResponse.HttpClientResponse) =>
     headers: headerDetails(response.headers),
   })
 
-const decodeProviderBody = Schema.decodeUnknownOption(
-  Schema.fromJsonString(
-    Schema.Struct({
-      message: Schema.optionalKey(Schema.String),
-      error: Schema.optionalKey(Schema.Struct({ message: Schema.optionalKey(Schema.String) })),
-    }),
-  ),
-)
+const MAX_BODY_CHARS = 2000
 
+// Without a recognized message, show the raw body so the provider's explanation is never dropped.
 const providerMessage = (status: number, body: string | void) => {
-  const decoded = body === undefined ? undefined : Option.getOrUndefined(decodeProviderBody(body))
-  return (
-    [decoded?.error?.message, decoded?.message].find((message) => message?.trim()) ??
-    `Provider request failed with HTTP ${status}`
-  )
+  const fallback = `Provider request failed with HTTP ${status}`
+  const text = body?.trim() ?? ""
+  const message = providerErrorMessage(text)
+  if (message) return message
+  // Gateway and proxy HTML error pages are markup, not an explanation.
+  if (!text || /^<(?:!doctype|html)/i.test(text)) return fallback
+  return `${fallback}: ${text.length > MAX_BODY_CHARS ? `${text.slice(0, MAX_BODY_CHARS)}…` : text}`
 }
 
 const statusError = (response: HttpClientResponse.HttpClientResponse) =>

packages/ai/test/cache-policy.test.ts

@@ -3,7 +3,17 @@ import { Effect } from "effect"
 import { CacheHint, LLM, Message } from "../src/index.js"
 import { Auth } from "../src/route.js"
 import { compileRequest } from "../src/route/client.js"
-import { AmazonBedrock, AnthropicCompatible, GoogleVertexMessages } from "../src/providers.js"
+import {
+  Alibaba,
+  AmazonBedrock,
+  AnthropicCompatible,
+  CloudflareAIGateway,
+  GoogleVertexMessages,
+  Meta,
+  MiniMax,
+  Moonshot,
+  ZAICodingPlan,
+} from "../src/providers.js"
 import * as AnthropicMessages from "../src/protocols/anthropic-messages.js"
 import * as Gemini from "../src/protocols/gemini.js"
 import * as OpenAIChat from "../src/protocols/openai-chat.js"
@@ -127,6 +137,34 @@ describe("applyCachePolicy", () => {
     }),
   )
 
+  const messagesModels = [
+    ["alibaba-messages", Alibaba.configure({ region: "ap-southeast-1", apiKey: "test" }).messages("qwen3.8-max")],
+    [
+      "cloudflare-ai-gateway-messages",
+      CloudflareAIGateway.configure({ accountId: "test", gatewayId: "test", apiKey: "test" }).model(
+        "anthropic/claude-sonnet-4-6",
+      ),
+    ],
+    ["meta-messages", Meta.configure({ apiKey: "test" }).messages("muse-spark-1.3")],
+    ["minimax-messages", MiniMax.configure({ apiKey: "test" }).model("MiniMax-M3")],
+    ["moonshot-messages", Moonshot.configure({ apiKey: "test" }).messages("kimi-k3")],
+    ["zai-coding-messages", ZAICodingPlan.configure({ apiKey: "test" }).messages("glm-5.3")],
+  ] as const
+
+  messagesModels.forEach(([route, model]) =>
+    it.effect(`'auto' emits cache markers on ${route}`, () =>
+      Effect.gen(function* () {
+        const prepared = yield* compileRequest(LLM.request({ model, system: "Sys", prompt: "hi" }))
+
+        expect(prepared.route).toBe(route)
+        expect(prepared.body).toMatchObject({
+          system: [{ type: "text", text: "Sys", cache_control: { type: "ephemeral" } }],
+          messages: [{ role: "user", content: [{ type: "text", text: "hi", cache_control: { type: "ephemeral" } }] }],
+        })
+      }),
+    ),
+  )
+
   it.effect("'auto' is a no-op on OpenAI (implicit caching protocol)", () =>
     Effect.gen(function* () {
       const prepared = yield* compileRequest(

packages/ai/test/executor.test.ts

@@ -273,10 +273,56 @@ describe("RequestExecutor", () => {
       expectAIError(error)
       expect(error.reason).toMatchObject({ _tag: "InvalidRequest" })
       expect("classification" in error.reason ? error.reason.classification : undefined).toBeUndefined()
-      expect(error.message).toBe("Provider request failed with HTTP 400")
+      expect(error.message).toBe("Provider request failed with HTTP 400: invalid parameter")
     }).pipe(Effect.provide(fixedResponse("invalid parameter", { status: 400 }))),
   )
 
+  it.effect("shows unrecognized provider error bodies", () =>
+    Effect.gen(function* () {
+      const executor = yield* RequestExecutor.Service
+      const error = yield* executor.execute(request).pipe(Effect.flip)
+
+      expect(error.message).toBe(
+        'Provider request failed with HTTP 422: {"object":"error","message":{"detail":[{"msg":"Input should be less than or equal to 1.5"}]}}',
+      )
+    }).pipe(
+      Effect.provide(
+        fixedResponse('{"object":"error","message":{"detail":[{"msg":"Input should be less than or equal to 1.5"}]}}', {
+          status: 422,
+        }),
+      ),
+    ),
+  )
+
+  it.effect("shows messages from common provider error layouts", () =>
+    Effect.gen(function* () {
+      const executor = yield* RequestExecutor.Service
+      const error = yield* executor.execute(request).pipe(Effect.flip)
+
+      expect(error.message).toBe("Invalid API Key")
+    }).pipe(Effect.provide(fixedResponse('{"detail":"Invalid API Key"}', { status: 401 }))),
+  )
+
+  it.effect("truncates long unrecognized provider error bodies", () =>
+    Effect.gen(function* () {
+      const executor = yield* RequestExecutor.Service
+      const error = yield* executor.execute(request).pipe(Effect.flip)
+
+      expect(error.message).toBe(`Provider request failed with HTTP 400: ${"x".repeat(2000)}…`)
+      expect(error.reason.body).toHaveLength(5000)
+    }).pipe(Effect.provide(fixedResponse("x".repeat(5000), { status: 400 }))),
+  )
+
+  it.effect("does not show HTML error pages", () =>
+    Effect.gen(function* () {
+      const executor = yield* RequestExecutor.Service
+      const error = yield* executor.execute(request).pipe(Effect.flip)
+
+      expect(error.message).toBe("Provider request failed with HTTP 502")
+      expect(error.reason.body).toContain("Bad Gateway")
+    }).pipe(Effect.provide(fixedResponse("<!DOCTYPE html><html><body>Bad Gateway</body></html>", { status: 502 }))),
+  )
+
   it.effect("preserves structured provider messages from large error bodies", () =>
     Effect.gen(function* () {
       const executor = yield* RequestExecutor.Service
@@ -299,7 +345,7 @@ describe("RequestExecutor", () => {
     ),
   )
 
-  it.effect("falls back when structured provider messages are empty", () =>
+  it.effect("shows the body when structured provider messages are empty", () =>
     Effect.gen(function* () {
       const executor = yield* RequestExecutor.Service
       const error = yield* executor.execute(request).pipe(Effect.flip)
@@ -308,7 +354,7 @@ describe("RequestExecutor", () => {
       expect(error.reason).toMatchObject({
         _tag: "InvalidRequest",
       })
-      expect(error.message).toBe("Provider request failed with HTTP 400")
+      expect(error.message).toBe('Provider request failed with HTTP 400: {"error":{"message":"  "}}')
     }).pipe(Effect.provide(fixedResponse('{"error":{"message":"  "}}', { status: 400 }))),
   )
 

packages/ai/test/fixtures/recordings/alibaba-messages/qwen-3-7-plus-streams-thinking-disabled.json

@@ -10,7 +10,7 @@
       "usage"
     ],
     "name": "alibaba-messages/qwen-3-7-plus-streams-thinking-disabled",
-    "recordedAt": "2026-09-08T03:10:57.819Z"
+    "recordedAt": "2026-09-29T05:26:24.450Z"
   },
   "interactions": [
     {
@@ -21,14 +21,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.7-plus\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}]}],\"stream\":true,\"max_tokens\":4096,\"thinking\":{\"type\":\"disabled\"}}"
+        "body": "{\"model\":\"qwen3.7-plus\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"max_tokens\":4096,\"thinking\":{\"type\":\"disabled\"}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream"
         },
-        "body": "event:ping\ndata:{\"type\":\"ping\"}\n\nevent:message_start\ndata:{\"message\":{\"model\":\"qwen3.7-plus\",\"id\":\"msg_c4d58b4f-a61d-9d0c-a9e4-cb45d34b1120\",\"role\":\"assistant\",\"type\":\"message\",\"content\":[],\"usage\":{\"input_tokens\":20,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent:content_block_start\ndata:{\"type\":\"content_block_start\",\"content_block\":{\"type\":\"text\",\"text\":\"\"},\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"type\":\"text_delta\",\"text\":\"3\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"type\":\"text_delta\",\"text\":\"7887\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_stop\ndata:{\"type\":\"content_block_stop\",\"index\":0}\n\nevent:message_delta\ndata:{\"delta\":{\"stop_reason\":\"end_turn\"},\"type\":\"message_delta\",\"usage\":{\"output_tokens\":5,\"cache_creation_input_tokens\":0,\"input_tokens\":32,\"cache_read_input_tokens\":0,\"prompt_tokens_details\":{\"cached_tokens\":0}}}\n\nevent:message_stop\ndata:{\"type\":\"message_stop\"}\n\n"
+        "body": "event:ping\ndata:{\"type\":\"ping\"}\n\nevent:message_start\ndata:{\"message\":{\"model\":\"qwen3.7-plus\",\"id\":\"msg_39067759-5f01-9b3a-b2c1-09111797f7b5\",\"role\":\"assistant\",\"type\":\"message\",\"content\":[],\"usage\":{\"input_tokens\":20,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent:content_block_start\ndata:{\"type\":\"content_block_start\",\"content_block\":{\"type\":\"text\",\"text\":\"\"},\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"type\":\"text_delta\",\"text\":\"3\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"type\":\"text_delta\",\"text\":\"788\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"type\":\"text_delta\",\"text\":\"7\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_stop\ndata:{\"type\":\"content_block_stop\",\"index\":0}\n\nevent:message_delta\ndata:{\"delta\":{\"stop_reason\":\"end_turn\"},\"type\":\"message_delta\",\"usage\":{\"cache_creation\":{\"ephemeral_5m_input_tokens\":0},\"output_tokens\":5,\"cache_creation_input_tokens\":0,\"input_tokens\":32,\"cache_read_input_tokens\":0,\"prompt_tokens_details\":{\"cached_tokens\":0}}}\n\nevent:message_stop\ndata:{\"type\":\"message_stop\"}\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-messages/qwen-3-8-max-follows-a-json-schema.json

@@ -9,7 +9,7 @@
       "structured-output"
     ],
     "name": "alibaba-messages/qwen-3-8-max-follows-a-json-schema",
-    "recordedAt": "2026-09-08T03:11:30.530Z"
+    "recordedAt": "2026-09-29T05:26:41.466Z"
   },
   "interactions": [
     {
@@ -20,14 +20,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Return a JSON object with one key \\\"city\\\" set to the capital city of France.\"}]}],\"stream\":true,\"max_tokens\":1024,\"thinking\":{\"type\":\"disabled\"},\"output_config\":{\"format\":{\"type\":\"json_schema\",\"schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\"}},\"required\":[\"city\"],\"additionalProperties\":false}}}}"
+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Return a JSON object with one key \\\"city\\\" set to the capital city of France.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"max_tokens\":1024,\"thinking\":{\"type\":\"disabled\"},\"output_config\":{\"format\":{\"type\":\"json_schema\",\"schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\"}},\"required\":[\"city\"],\"additionalProperties\":false}}}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream"
         },
-        "body": "event:ping\ndata:{\"type\":\"ping\"}\n\nevent:message_start\ndata:{\"message\":{\"model\":\"qwen3.8-max\",\"id\":\"msg_16e067c1-984b-94d3-9abb-11792d794271\",\"role\":\"assistant\",\"type\":\"message\",\"content\":[],\"usage\":{\"input_tokens\":18,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent:content_block_start\ndata:{\"type\":\"content_block_start\",\"content_block\":{\"type\":\"text\",\"text\":\"\"},\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"type\":\"text_delta\",\"text\":\"{\\\"\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"type\":\"text_delta\",\"text\":\"city\\\":\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"type\":\"text_delta\",\"text\":\" \\\"Paris\\\"}\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_stop\ndata:{\"type\":\"content_block_stop\",\"index\":0}\n\nevent:message_delta\ndata:{\"delta\":{\"stop_reason\":\"end_turn\"},\"type\":\"message_delta\",\"usage\":{\"output_tokens\":6,\"cache_creation_input_tokens\":0,\"input_tokens\":32,\"cache_read_input_tokens\":0,\"prompt_tokens_details\":{\"cached_tokens\":0}}}\n\nevent:message_stop\ndata:{\"type\":\"message_stop\"}\n\n"
+        "body": "event:ping\ndata:{\"type\":\"ping\"}\n\nevent:message_start\ndata:{\"message\":{\"model\":\"qwen3.8-max\",\"id\":\"msg_61ee9b9d-a224-9b69-98f7-9f9ea3937b41\",\"role\":\"assistant\",\"type\":\"message\",\"content\":[],\"usage\":{\"input_tokens\":18,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent:content_block_start\ndata:{\"type\":\"content_block_start\",\"content_block\":{\"type\":\"text\",\"text\":\"\"},\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"type\":\"text_delta\",\"text\":\"{\\\"\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"type\":\"text_delta\",\"text\":\"city\\\":\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"type\":\"text_delta\",\"text\":\" \\\"Paris\\\"}\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_stop\ndata:{\"type\":\"content_block_stop\",\"index\":0}\n\nevent:message_delta\ndata:{\"delta\":{\"stop_reason\":\"end_turn\"},\"type\":\"message_delta\",\"usage\":{\"cache_creation\":{\"ephemeral_5m_input_tokens\":0},\"output_tokens\":6,\"cache_creation_input_tokens\":0,\"input_tokens\":32,\"cache_read_input_tokens\":0,\"prompt_tokens_details\":{\"cached_tokens\":0}}}\n\nevent:message_stop\ndata:{\"type\":\"message_stop\"}\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-messages/qwen-3-8-max-obeys-named-tool-choice.json

@@ -10,7 +10,7 @@
       "tool-choice"
     ],
     "name": "alibaba-messages/qwen-3-8-max-obeys-named-tool-choice",
-    "recordedAt": "2026-09-08T03:11:06.590Z"
+    "recordedAt": "2026-09-29T05:26:40.212Z"
   },
   "interactions": [
     {
@@ -21,14 +21,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Find the current weather in Paris.\"}]}],\"tools\":[{\"name\":\"get_weather\",\"description\":\"Get weather in a city\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"]}}],\"tool_choice\":{\"type\":\"tool\",\"name\":\"get_weather\"},\"stream\":true,\"max_tokens\":4096,\"thinking\":{\"type\":\"disabled\"}}"
+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Find the current weather in Paris.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"tools\":[{\"name\":\"get_weather\",\"description\":\"Get weather in a city\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"]},\"cache_control\":{\"type\":\"ephemeral\"}}],\"tool_choice\":{\"type\":\"tool\",\"name\":\"get_weather\"},\"stream\":true,\"max_tokens\":4096,\"thinking\":{\"type\":\"disabled\"}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream"
         },
-        "body": "event:ping\ndata:{\"type\":\"ping\"}\n\nevent:message_start\ndata:{\"message\":{\"model\":\"qwen3.8-max\",\"id\":\"msg_0e8f1abf-f2bc-9a86-a6a7-14804ac17eac\",\"role\":\"assistant\",\"type\":\"message\",\"content\":[],\"usage\":{\"input_tokens\":45,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent:content_block_start\ndata:{\"type\":\"content_block_start\",\"content_block\":{\"name\":\"get_weather\",\"input\":{},\"id\":\"toolu_cf9cab33261f4709ae096d8a\",\"type\":\"tool_use\"},\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"partial_json\":\"\",\"type\":\"input_json_delta\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"partial_json\":\"{\\\"city\\\": \\\"Paris\",\"type\":\"input_json_delta\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"partial_json\":\"\\\"\",\"type\":\"input_json_delta\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"partial_json\":\"}\",\"type\":\"input_json_delta\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_stop\ndata:{\"type\":\"content_block_stop\",\"index\":0}\n\nevent:message_delta\ndata:{\"delta\":{\"stop_reason\":\"end_turn\"},\"type\":\"message_delta\",\"usage\":{\"output_tokens\":19,\"cache_creation_input_tokens\":0,\"input_tokens\":288,\"cache_read_input_tokens\":0,\"prompt_tokens_details\":{\"cached_tokens\":0}}}\n\nevent:message_stop\ndata:{\"type\":\"message_stop\"}\n\n"
+        "body": "event:ping\ndata:{\"type\":\"ping\"}\n\nevent:message_start\ndata:{\"message\":{\"model\":\"qwen3.8-max\",\"id\":\"msg_dab3e1c5-e75e-978d-902e-1b0a82918cff\",\"role\":\"assistant\",\"type\":\"message\",\"content\":[],\"usage\":{\"input_tokens\":45,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent:content_block_start\ndata:{\"type\":\"content_block_start\",\"content_block\":{\"name\":\"get_weather\",\"input\":{},\"id\":\"toolu_9a1c3c06a04744cc97df33a2\",\"type\":\"tool_use\"},\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"partial_json\":\"\",\"type\":\"input_json_delta\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"partial_json\":\"{\\\"city\\\": \\\"Paris\",\"type\":\"input_json_delta\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"partial_json\":\"\\\"\",\"type\":\"input_json_delta\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_delta\ndata:{\"delta\":{\"partial_json\":\"}\",\"type\":\"input_json_delta\"},\"type\":\"content_block_delta\",\"index\":0}\n\nevent:content_block_stop\ndata:{\"type\":\"content_block_stop\",\"index\":0}\n\nevent:message_delta\ndata:{\"delta\":{\"stop_reason\":\"end_turn\"},\"type\":\"message_delta\",\"usage\":{\"cache_creation\":{\"ephemeral_5m_input_tokens\":0},\"output_tokens\":19,\"cache_creation_input_tokens\":0,\"input_tokens\":288,\"cache_read_input_tokens\":0,\"prompt_tokens_details\":{\"cached_tokens\":0}}}\n\nevent:message_stop\ndata:{\"type\":\"message_stop\"}\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/bedrock-converse-thinking-binding/accepts-the-default-binding-with-no-thinking-configured.json

@@ -0,0 +1,34 @@
+{
+  "version": 1,
+  "metadata": {
+    "tags": [
+      "prefix:bedrock-converse-thinking-binding",
+      "provider:amazon-bedrock",
+      "protocol:bedrock-converse",
+      "reasoning"
+    ],
+    "name": "bedrock-converse-thinking-binding/accepts-the-default-binding-with-no-thinking-configured",
+    "recordedAt": "2026-09-28T23:09:14.527Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://bedrock-runtime.us-east-1.amazonaws.com/model/global.anthropic.claude-opus-5-5/converse-stream",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"modelId\":\"global.anthropic.claude-opus-5-5\",\"messages\":[{\"role\":\"user\",\"content\":[{\"text\":\"Say hello.\"}]}],\"system\":[{\"text\":\"Reply with the single word 'Hello'.\"}],\"inferenceConfig\":{\"maxTokens\":1024},\"additionalModelRequestFields\":{\"thinking\":{\"type\":\"adaptive\",\"block_binding\":{\"prefix_mismatch_behavior\":\"drop_block\"}},\"anthropic_beta\":[\"thinking-binding-controls-2026-08-01\"]}}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "application/vnd.amazon.eventstream"
+        },
+        "body": "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",
+        "bodyEncoding": "base64"
+      }
+    }
+  ]
+}

packages/ai/test/fixtures/recordings/meta-messages/replays-encrypted-thinking-through-a-tool-loop.json

@@ -2,9 +2,16 @@
   "version": 1,
   "metadata": {
     "model": "muse-spark-1.3",
-    "tags": ["prefix:meta-messages", "provider:meta", "protocol:meta-messages", "tool", "tool-loop", "reasoning"],
+    "tags": [
+      "prefix:meta-messages",
+      "provider:meta",
+      "protocol:meta-messages",
+      "tool",
+      "tool-loop",
+      "reasoning"
+    ],
     "name": "meta-messages/replays-encrypted-thinking-through-a-tool-loop",
-    "recordedAt": "2026-09-07T17:27:03.540Z"
+    "recordedAt": "2026-09-29T05:29:52.700Z"
   },
   "interactions": [
     {
@@ -15,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"muse-spark-1.3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Look up the current weather in Paris using lookup_weather. After receiving the result, report Paris's weather in one short sentence.\"}]}],\"tools\":[{\"name\":\"lookup_weather\",\"description\":\"Look up current weather\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false}}],\"tool_choice\":{\"type\":\"auto\"},\"stream\":true,\"max_tokens\":1024,\"thinking\":{\"type\":\"adaptive\",\"display\":\"omitted\"},\"output_config\":{\"effort\":\"low\"}}"
+        "body": "{\"model\":\"muse-spark-1.3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Look up the current weather in Paris using lookup_weather. After receiving the result, report Paris's weather in one short sentence.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"tools\":[{\"name\":\"lookup_weather\",\"description\":\"Look up current weather\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"cache_control\":{\"type\":\"ephemeral\"}}],\"tool_choice\":{\"type\":\"auto\"},\"stream\":true,\"max_tokens\":1024,\"thinking\":{\"type\":\"adaptive\",\"display\":\"omitted\"},\"output_config\":{\"effort\":\"low\"}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream"
         },
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@@ -33,14 +40,14 @@
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         },
-        "body": "event: message_start\ndata: {\"message\":{\"content\":[],\"id\":\"msg_6a9ef3e77f6ef36fdd8f4925\",\"model\":\"muse-spark-1.3\",\"role\":\"assistant\",\"stop_reason\":null,\"stop_sequence\":null,\"type\":\"message\",\"usage\":{\"input_tokens\":0,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"data\":\"Q-PaDgH-GUZkiqnb_seFaP70it_GxAEIUjt2BLllpyzfckiBOUVwr72xGQsSnj0y9aOhoaQ24A_HB0MHh4XWyYziVdRgq6lDPLHkJlmMzbusZxUZUx7D7B8kD8HrBbiTeIFbFlHaM9MiZW_PpYY9fpkdc7aeuX0mORdK8XTT3JPjvW1HPp4Qqp_iEOl9G2iM2Y6xno8SqeTcbc4EQs1LePaKrq86dBPmXBjkgQbYfvIw57o0SBEyelcudtnzJnaluOyOQdV2Ytk_r_xrYSCoBwgbf2KBCOFjdeQyruuwVZZ32JJdVOpWLw8eopUwAo2xYOZP0g8S8hTmOFvDKuzXipm1OoAXwD8Swm6ED3IIo0hHA5xSfMygDCee47nd-EpShNPamkCKodfX1QvePEJsIQK2iTgkh8IGUeEEne5dxgLuXvEAbeqGDvEy6T7IoSgZnc-KPtH6SoWM_kgc_eF_oN73Nxg2prMyCqTUNg5Qs2WLPjA9wSLmmnCoiDr1bYNIuQyn6adgv0-nZZXETJoRAHJBj65Asa8kbLyCYesb192178xCj2aBSdwyj-jc0i328sa9STS7mUSI7KvOt0Yi3kllLs1aSnHW-ogsUJUM7tTf83VO9fRRU_aW4H6qr4OAr8jbBKSD3bxE0AekDd24ZS-8YIjiP1tMOAPZ2JGQrNqbxnaeqhCZzD2nl-E8TMXaAJIk4L3oZtV80xJiUW7mLEf_jQBPAWhph4ujbkDaufGvNrl4FXyBJ-XpKMIA5z0jAYU2b3ul5-Qn5Km7Oc8fPu1M_0XGAOKG-pF9ppr4y-an4B4mKDYoAiSHp3cjv-fW57D87wBfQPaJRjOzWhzqENO-5MlB0CEsnDtrLveE2ui8wSECszParUNk5SEaeSYvrXLY0QkaE7CTK9ljwTKjJM34r1a8o16KFxGuzMrloNlxIYIaO_suM9CDuf8wNwe8KkAV2Kt28g9LwkL5b3mtI7ZSjTdHYOOhFFMzs-sjXboQoGAJGOhMnCQNc3E5-goSzvOzEIXehSTs8Mzyq8d3C2k5F9PSgdO6ZouHVURDgbEXTqWqoqjQ8huk5AbrUX16QwhJambd6P-3i--Idz9CbIVuWIqiMm80TvYlMttobYxTyFDIJrKJTrVA0PkAOFvOMfYt27d7z2ZMrTf6Vtm_DNniuhVbvVU3ZcWbb4LO-XkwH3bfHB-sckpwURP34KzOMvogaqWaMAZlabdd-lQKCc7tMhmo9BrYwHHvLxAELD2qQnyym43Yo1iJNAyrqoUAFk6K029fDon7h9ybmKZdBxRtS3arUesY_91Xep0tA0Y1UYUKo8zKjK3Op_DbVyC5OoR8rxpumKiqk2PtG7RPf-WjEXGkleGqZtxix7ILSkQXxW6McY1r_6LAh2Nv0nUzqS019tTb7mx2OLyt2g\",\"type\":\"redacted_thinking\"},\"index\":0,\"type\":\"content_block_start\"}\n\nevent: content_block_stop\ndata: {\"index\":0,\"type\":\"content_block_stop\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"text\":\"\",\"type\":\"text\"},\"index\":1,\"type\":\"content_block_start\"}\n\nevent: content_block_delta\ndata: {\"delta\":{\"text\":\"It's sunny in Paris.\",\"type\":\"text_delta\"},\"index\":1,\"type\":\"content_block_delta\"}\n\nevent: content_block_stop\ndata: {\"index\":1,\"type\":\"content_block_stop\"}\n\nevent: message_delta\ndata: {\"delta\":{\"stop_reason\":\"end_turn\",\"stop_sequence\":null},\"type\":\"message_delta\",\"usage\":{\"cache_creation_input_tokens\":0,\"cache_read_input_tokens\":0,\"input_tokens\":210,\"output_tokens\":50,\"output_tokens_details\":{\"thinking_tokens\":35}}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
+        "body": "event: message_start\ndata: {\"message\":{\"content\":[],\"id\":\"msg_6abb4cd0b3f15768e1ae4287\",\"model\":\"muse-spark-1.3\",\"role\":\"assistant\",\"stop_reason\":null,\"stop_sequence\":null,\"type\":\"message\",\"usage\":{\"input_tokens\":0,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"data\":\"Q-PaDgF70ZwJMdvZQh6urOFUjgHa2IrdJbBv8RFXDpivwOudmj9QoCi81uRWeArjn_7V2nNk6i6jlHMjN7ACeZUE-faBnl4bTI10Fs0w0SSgcdkMaume2hpXBrZB85wlEttQviz-Pc5EHhAzU5QFIrK83CQkhJENqcfY3NJW1-55JFqlXmWSFV0GtNp3clG7V0LR1Zaq54hqIUY5iwf1pB8VIXLxPca3LwXMGbQPgjOgj_WNKHEBGl6mIafeca1OlGuDrJPN9tWBhlfxJCkcRU0zl14NA8chEyr96N40KrPewjVAlWO3jSejy9V7PnglilNewhUXOEQ75w2tYiZDajBfz6iG_n27zD3uvgD3QQthdyeUhJqlBaX81zMIe39Ctfo-cX-62cKwE3_EHy_7SxkwY5Olbf_bwL4GGzR39MObZoyv8-ZU1kwwVuSLXuDFvIx6iaAMZ50U4xXYbOphAaw2rylql0_kiPlFS9V3Fr_Jvx4vplj-8xh9JI7Uu9t9O7ltECpN9Qfu32fqxzWy9-ZVIh15gzhyegNeICBOcz6b9s3CIFHnzRcU69Ru9-lbydKv7scII_2xxLd-wlHQDCXHXyTeTeZjbTRiul0u5J2m8gGefF-j0lVChJOh8F4vBltzYTFTiQoSP8KtL61VJOt6dLsxOQA0Rq4PR5Lcs2fAfJbKb7jYB23bmXvQQ1d76keuvq_yoSIhrSyxLvXRCxouoWttkI8QC0u7O5pZUIPVfiYMI-j3bbc63BFOu4wAGbckm8Txo-gAY8UYAAwMBX17SD5EcTR82njKmd1R0Y8XOJLiwZRlN0ou-syq8xhahVgd0VcyB1HKr1f9mbhJdqFkKGpWh9-SR6jT6fKCCFxeMA3caczpG5wP_q5SGgyUiK0GWYpHabjSeJWac-04TDOfqL4QwLEKuL4PjlINe9OZY1n1lPJa2_MS9YGt6qlgLe3uZSEBwHk-ul5_yRetU8bd7lYcwDtUHT6puEkdjqeYwYQ8XWkUjoYwvSIMB_2v_owa5p9gPzf5Fr_zWqG7pizrStNNHq1MjXQX8Pl4Z6e2LZ2NjItfjR1GKdErNEJWXyh0oHCQKD1fIOXl64lpQorAHUcKV2HZm_SkwV7kxvzAfhdeT9Fe3AXZmtPBS1m0ZMMYNMYsNKb813JnWu8LvNg_zgXLBWsiB-hl4kCk1NKVAsCoA0i8JUFnGGm_uQp6t06a5NQYEXvi5A0akZTacle4UTBflNdsIVR6tSaO_m49nnr-XYSIh3tEzfjOsXpFz5L_A9SBDdPSGpcMJrs00nl1wDpF78OKC8NhwkIx8ydwF5A-ecXf91SbgqzVgv2T-wzuziA1wjJbPsGzTxP_wULUc2P5-ftFAMpsiRHB_-7hq6ZGo3HwNWjK2DTTN_89u7RCjuErEVPXUv-2fQ\",\"type\":\"redacted_thinking\"},\"index\":0,\"type\":\"content_block_start\"}\n\nevent: content_block_stop\ndata: {\"index\":0,\"type\":\"content_block_stop\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"text\":\"\",\"type\":\"text\"},\"index\":1,\"type\":\"content_block_start\"}\n\nevent: content_block_delta\ndata: {\"delta\":{\"text\":\"It's sunny in Paris right now.\",\"type\":\"text_delta\"},\"index\":1,\"type\":\"content_block_delta\"}\n\nevent: content_block_stop\ndata: {\"index\":1,\"type\":\"content_block_stop\"}\n\nevent: message_delta\ndata: {\"delta\":{\"stop_reason\":\"end_turn\",\"stop_sequence\":null},\"type\":\"message_delta\",\"usage\":{\"cache_creation_input_tokens\":0,\"cache_read_input_tokens\":0,\"input_tokens\":152,\"output_tokens\":55,\"output_tokens_details\":{\"thinking_tokens\":38}}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/meta-messages/streams-text-with-adaptive-thinking.json

@@ -2,9 +2,16 @@
   "version": 1,
   "metadata": {
     "model": "muse-spark-1.3",
-    "tags": ["prefix:meta-messages", "provider:meta", "protocol:meta-messages", "text", "reasoning", "adaptive"],
+    "tags": [
+      "prefix:meta-messages",
+      "provider:meta",
+      "protocol:meta-messages",
+      "text",
+      "reasoning",
+      "adaptive"
+    ],
     "name": "meta-messages/streams-text-with-adaptive-thinking",
-    "recordedAt": "2026-09-07T17:26:18.565Z"
+    "recordedAt": "2026-09-29T05:29:46.263Z"
   },
   "interactions": [
     {
@@ -15,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"muse-spark-1.3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}]}],\"stream\":true,\"max_tokens\":2048,\"thinking\":{\"type\":\"adaptive\",\"display\":\"omitted\"},\"output_config\":{\"effort\":\"low\"}}"
+        "body": "{\"model\":\"muse-spark-1.3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"max_tokens\":2048,\"thinking\":{\"type\":\"adaptive\",\"display\":\"omitted\"},\"output_config\":{\"effort\":\"low\"}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream"
         },
-        "body": "event: message_start\ndata: {\"message\":{\"content\":[],\"id\":\"msg_6a9ef3b8e46a777cfdc94a93\",\"model\":\"muse-spark-1.3\",\"role\":\"assistant\",\"stop_reason\":null,\"stop_sequence\":null,\"type\":\"message\",\"usage\":{\"input_tokens\":0,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"data\":\"Q-PaDgFtwwNGqSqKxPk9Zj-j9xogYigpDsDHrLKPV-DxmXcbhtXDPrGPuj5qB4l1FslhuEQFCA8zIRyNGaCmzM0JG4GOZe3LpFYM2iegBbi24l4V7souryAwUs_7PrInxObuguMwh2S66ML6PwlfVRVTAwPsgDSCl6Y9tkoDHr2KBRY2fzJhmjkotuFRK2LYvNp9pKi89JxnoIKK8B_UJc_B2r4vU_Txq9_rWTmo2eXFoGOSMZNaHpVrvACRQKC1jc6-8Pj5JkJN11_Cs2fHqlaCwOoPDVJxHXUXP1AMHU1mG0jR4qf9wUaz8kMmyCBBijlfQJ4G7nsQs7LJO9gS2ropmynDoO5IEIAFf7ekxLw54Fx3JigC0_qz4Jx4a04Ey8JBzWRlZNdqggpq2_I_VoT3S0zhCYDp8ZAJQs2JqvvF-ZmLcMPH1PmpkgRySqXl5TDxERIpdL3aOUzTl-PTHVMIGEcSAz84fFwU4p1kS5llGEGC6jHlClscEEto1Y-qthL6BoeDALzk7GHEMVQD0bfC4E5yGCh0_xlWqsG3XPj0wpYKBc0hfh7vjO1NpzPxCtaDjnRwR6TzSo6x_HrEL3VELArHhpYAXl30fNO-EepduZ3Hd_kWqWj_GhdIM4dRh2zoytbhIesVD7OvBqU47urKFnpXw4kswJ-NoVVNk00ysMMHwobT9BdJL9UCoXlNzyErPe8LkA9f0VrKkuLCg5FDr_DCEYXHXr7fdRmC3JTKuzvxffvPYppUt3hs5gbdXWgT2iZzunt4bSfFne7BPkj9OGREyfLcukvGAh_oqPLXuu0lert9wbTAqRUTyM5Y1nSjw3h2B3jv91mH78mGvhy8LeVNLkrSMxEa4GtrrUvlzkPnZayc_LE2Sr7JnQjhwylVNWvkcIAjstOZShjPKe4pUJwj-cUXmXZB7Zwr-Q9WLtprFgQoBvadd5DHD4aynsYEabKZVcOqhV8l2zyaUCGobUzdPqBC5kk5-VPmNTqm6Qs91mb1y_5ydmHjTWmSW6qtN_op-Xfwqr_hllvOjhnAvvDJWUOKH-YIgZw_k_db2mzW1hO093jSDMYv6wpiy_5XWMNJBjcH8hvR_pFjXIqScUnKPranEZvCyGfHR-UBNJ89s_JEE49chcIt8LiukBeXQ_TOe29kzWnT1tYtfGQXP8FY2Wukw5yhvP3coGp1-LPZRuw3BLP2tWmiijmyj5lMikp8MIeqOztN8zgsArZ9jq21EtDSNfpO_0C4GEOtCZQYvZHRpDeY966XDnN7Blenn_8FZ95M-M-1My8hsmF__JrnY4ZFZr2274f_FbyJaSqGj6H-YRuzawO2TVLWHxAr6v2LCiB_QX01PwUI1yaJmP0mI-Qz5zXgSHzfVzhF7l1zEnM8qIYcSXzD1Gp3rjpn2sq-rR-JLqeHq080Hl0X9c8lzozw3qCpvcTfA-4ZTdXU9ax3nt7emcPVFo9N_JBjYashC7KvjkIWjMhQoTbIRlO18gjEa-Dvtsmo4_xE1ApYRoylbhxg3_fQJjKLfCBv32V6BM8qWKINL7d1nYP7PtAKnglCdnT_dK0_pCK6ejGfmdWZgVj0DhVZUCXf2kN530Y0hoCb1jBgwJ16a5gUqJMtnWScarIGSVrsYMA_uEt7DwQzGYAGESVIgi8JVATkxoq4EbyOLCHX7MIKmAPGV2WWTjWAWLnE2ITjlXtBkUAwjq2v957BMgIqxSNxEjG75Gd0i1XjZAujCSCXMrywZ72-VdQy4cD6kzH9mv04fZ7_dqn9eKPHBY7_T7V6myRDj_ImkffXcygmd7F-_-kHMExI6ABas1WtfDjkYgbRM0jMtIHYL-W9xT8vCSLSdvHcb5Y8XSXT5GTwI7eIlBHnCvFrgunbCo9bJJlT2Gc1RcgeZ4rg3yu1MNF4Mfk6DBwDhduGh5l7nypL00B0HokLfF4H7N1oSKL9jdVE3oMyJuA9NV1SJiyqcneSVHBzqjFZ5sszFXPlBKEz31izxFToAF4tDYMR507zYLcxyLA4AmHlkmn0qeozPb5qk-qZB6yLywtewv8O1KqxieAEJnEmyiqGnoKBdkjpeYmplErSxJyzoRX4fXb9mOdb-izJgvqSQ5uLm0_EXf3OklpMoAJ2CPJ6cxpg_5bhiwbgEtafCuDyXVL9Zzi872yUb_Z-ATlqU1M2Ai67f1piHIUDzMn4kulXQhPMb_R4eznMbX_aRigQh92-t1USoFtX2vmyCUQageFcrHHK524gPQ7rkOfDvZ8GHPXi3YZFnzGkSKjQD0jumFtzDiRqYkkMECep0zgY8MjuWLMjlMuigpkzSm8GPZ2aFeIMxJCYR8iMf7fH9NyHAJnicx4wdW_UqqgY5jfVtDvPSL0SRScyyK0jNdmofDHjWp4Tehih5OOw81E3BYLCiIv2p2zTMRSTZxFyG3HI91tIEaJu_RnIMFxzCilaP1LcbMrjyFzBtLJiXXJ--eFYyIMYKgfbWIOTsjLLJGC8NS2wuzaXB-C6GLsuSEHci5a8f5KGqaXK99LvHtY4k36WhEoVUjQEGY7HNJrtdjBUlqDgnT9iO06gGd2QCGvlP4us-Z3q2Bcyhf0LzOgn_Bpjc6YBk4TNF1AMxG15qmhnsrWcGElkpk3Vh9npC8--vkvhh7pOPfTZlNjQQh900OemY9gwxHyCBbt1096g4qkYOntGJmw-wVjyWxOt9K9CaM9WxY3wFyOmwqiFL1PK4CMeKMZk54iZ1ZiyXDOvsO7qUa9XQGDy3W8ic6R3DUzdkxEEBFYHAjDy3qE\",\"type\":\"redacted_thinking\"},\"index\":0,\"type\":\"content_block_start\"}\n\nevent: content_block_stop\ndata: {\"index\":0,\"type\":\"content_block_stop\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"text\":\"\",\"type\":\"text\"},\"index\":1,\"type\":\"content_block_start\"}\n\nevent: content_block_delta\ndata: {\"delta\":{\"text\":\"37887\",\"type\":\"text_delta\"},\"index\":1,\"type\":\"content_block_delta\"}\n\nevent: content_block_stop\ndata: {\"index\":1,\"type\":\"content_block_stop\"}\n\nevent: message_delta\ndata: {\"delta\":{\"stop_reason\":\"end_turn\",\"stop_sequence\":null},\"type\":\"message_delta\",\"usage\":{\"cache_creation_input_tokens\":0,\"cache_read_input_tokens\":0,\"input_tokens\":23,\"output_tokens\":266,\"output_tokens_details\":{\"thinking_tokens\":254}}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
+        "body": "event: message_start\ndata: {\"message\":{\"content\":[],\"id\":\"msg_6abb4cc8199fc8fa6763470e\",\"model\":\"muse-spark-1.3\",\"role\":\"assistant\",\"stop_reason\":null,\"stop_sequence\":null,\"type\":\"message\",\"usage\":{\"input_tokens\":0,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"data\":\"Q-PaDgEdq_xGJ7Hl5i3AUq-IGolHfh7VsPu8914OD3BSVMiPCf1QVZ4O553OKpiejFGIkjBEfR2gGxcXlTsKuK78wfAiGAft2yQIHPeCJt4Csoxc3UUX405gUHqO9M06WeU118pTrlITW4g4dElALKmE2zi_pkQzEvU07jPqsF4n-3-9FkEnJ3D5Ag0UsU4LI1Mn5-EwPyPkitspoB-ytXsugMGQTMMfInzNq0OKDDMAO88aRQv24EslYBviairfM5c-k6dqOdGfsg_SntRiZJVNoo1yowGhQuiMKXreeQiQj_hrSVEXo8PVybmaCXtfW0I_2rI7JKR1uO-fxUHZckcCvLKMS3Wa2cwPUM9MPAnq05l3lbD1LpqZ_UPlf534p8_0BmF4hVGI2pamDWkL--7UaWrGFYtwBc3r9GVW0aIZC1ArnGjXsInKCnJuJ-elKu8H0Wp8-lxrsEfqtmxCamrsil8jOkIMezwSMUGtawhcOSdOnyQRje2b3OXiRx7Y-XZjrBlErbS13tdMJhXGlVqp9tazXlKdIt9CpMfMxjYW-Z5VkrJNymsBcjW1r2x5DC2VzGcqcha91rBkskrhKGWix95cdaEqUkP66DW9jThk4RS__E_oyt8DMTpvCxoZ5pe_mLkuS-ZpYKFeZbRegegIQErP_yuhvPWCwTYZymW4uUTVEmxdJ1otAST4ICF4ChsbHLLzJc4XHO7TA5GcwEc69m-poLTFrJvuYRErYhHHONOGWZGoyaPXApsmytUW6-lH2OiVpViVrLg_qvDw1NwyTgguQfP1d6JJYTmnjgN-Pa9170lqGzMI1fVjsC9zY5e6qe6NiyOwpxbFoV-jfdzyfeKX5LMVacpj2xV6dk6dYW7zcIZ3rJJvCpnwJROCjKbSRa4RvBFWNW2xjiWi1tYltzsz1YR1RHZJEN8szlfJjdMrfJdR5GbOiiDMcwGgGNOF5kbQqLgkggzR-B4lUNGLvSyBjAd_AdLpab0r9j1XdKBPWLFiXfAtX8lPSfeCSV41LFxKopB-MIVOpgtrwW6dsEayU7_w4Tc1nBTtYOGf2cGUV2XYzEpt5vxzCDC-og8WZ2lr3hOczp543-_I8n2ZOQEEk1k3suykPiQen_wgcpRccm18Aqsjy2t3uitZ-p1p4g0s6tG6Y_DCS4ku713v9Uw2ezHosl4Qk5JVk-KNvi9ZCYb9Jmc7PqHubP6Ua_UTyIeTiBB60zK5EgatIglUv3_NudfsplEH8YJkMvoAPJk-HW7c2WwzoymfA4TFoCg8vt3YHGAtuiyqF17-S3sfhl9J6oX-7FFpGn6bRqgwguC6sHUQw3bqWtyG4LjUy3_qzWfCI5zSm1hxjd6YRaxkdlv37Ol3Ua-65b3gRmQoUlA7omPbHuC8r2TNnG_ltsp9EMJlz7HN-Gyggw\",\"type\":\"redacted_thinking\"},\"index\":0,\"type\":\"content_block_start\"}\n\nevent: content_block_stop\ndata: {\"index\":0,\"type\":\"content_block_stop\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"text\":\"\",\"type\":\"text\"},\"index\":1,\"type\":\"content_block_start\"}\n\nevent: content_block_delta\ndata: {\"delta\":{\"text\":\"37887\",\"type\":\"text_delta\"},\"index\":1,\"type\":\"content_block_delta\"}\n\nevent: content_block_stop\ndata: {\"index\":1,\"type\":\"content_block_stop\"}\n\nevent: message_delta\ndata: {\"delta\":{\"stop_reason\":\"end_turn\",\"stop_sequence\":null},\"type\":\"message_delta\",\"usage\":{\"cache_creation_input_tokens\":0,\"cache_read_input_tokens\":0,\"input_tokens\":23,\"output_tokens\":161,\"output_tokens_details\":{\"thinking_tokens\":149}}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/meta-messages/streams-text-with-enabled-thinking.json

@@ -2,9 +2,16 @@
   "version": 1,
   "metadata": {
     "model": "muse-spark-1.3",
-    "tags": ["prefix:meta-messages", "provider:meta", "protocol:meta-messages", "text", "reasoning", "enabled"],
+    "tags": [
+      "prefix:meta-messages",
+      "provider:meta",
+      "protocol:meta-messages",
+      "text",
+      "reasoning",
+      "enabled"
+    ],
     "name": "meta-messages/streams-text-with-enabled-thinking",
-    "recordedAt": "2026-09-07T17:26:20.464Z"
+    "recordedAt": "2026-09-29T05:29:50.023Z"
   },
   "interactions": [
     {
@@ -15,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"muse-spark-1.3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}]}],\"stream\":true,\"max_tokens\":2048,\"thinking\":{\"type\":\"enabled\",\"budget_tokens\":1024,\"display\":\"omitted\"},\"output_config\":{\"effort\":\"low\"}}"
+        "body": "{\"model\":\"muse-spark-1.3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"max_tokens\":2048,\"thinking\":{\"type\":\"enabled\",\"budget_tokens\":1024,\"display\":\"omitted\"},\"output_config\":{\"effort\":\"low\"}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream"
         },
-        "body": "event: message_start\ndata: {\"message\":{\"content\":[],\"id\":\"msg_6a9ef3bbb7e691b3ea26427b\",\"model\":\"muse-spark-1.3\",\"role\":\"assistant\",\"stop_reason\":null,\"stop_sequence\":null,\"type\":\"message\",\"usage\":{\"input_tokens\":0,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"data\":\"Q-PaDgEpowvGua1C8z2RSICyyeSLruZ1JBUhrhLhgqf_XauiaESRHyHgIPVF0Cfxp7eLB_ESNObq7vJNDLdffE-RaN5nEauXhRxH6fJErC-4H_KELZFGF-qNnGu2DWl-gEojkwwkq1HtTtT3rOEk5isGjdribnDvR7a1zkpG3I0BxE_UyseISDSbkev5tyV7DkiH4xyv2ZmwuO3HHGgmAztEek9vm0ZTElZ8PIPvHG6P38aYGTGKrTjyOhmN3LBa_NFvtQQkUMKRB3n7L_N5KB1NbYkPzLEJ6L5dL9DJZBSsZms0O62QZ2zs2oWZ-ekQWL4oIuiRozWVpmwzjtkJl9WXtyvdL-4MACucXMSN9V7hWzC50g-DgdeFPSslsA9gy619wTNPPIxPymGWeD9LYKR3iwTRLNYzuycHakNqikhiwz9MweMod5GLTdbtypZJcV7ourz58jmK4YKsqleVPVvXM6bIoNuT2yGj23-tAYxQszGXQMHxSTnaLAHl6sUdiwTqX4wbFYfX-ogkIZsrca9mv5E2gkH1wJl19GPCxFaSDCHxh3QAW0RIExKUJly9Ydpoegmojfo0F4Hjt13zDm03fLEQ0eY8GjxIIHDt_zVRQGTW8d4tgZpTt4K9H1TTefG34EerN7jl7L-WNUe_gKorN4aSYBS6S6ma4Vb91NlUQ4cEGBKVQvumYe16p9Xj6Te-tCuiBmTOCq6iDsTH-eMlip_Bc18MD2BCGr2NdF4PB2vqHGSPIvSHDRXBjoPNtm18opAsUnOBu7-tysb8-EKFd5z7JbWgegQWNs11FdX0uFtC-U9ROwbHLJ3IHk4m2UHc2USwi7v4Xe6FtnkJ0VCZTajFUTXW33lwO3UsHuqEbxVnU_Rzuj6Ryjb08bpXpJBjIEGf2wBS3_I78cuXKOChHu-evtnjezc77joRUP8_I8pWsQbQ6bHABD95p8q6ZdQpDr9XQALbVg3ZvD5_QgF59rIxkW9a2L78oQpu0O3UT7-jxNFe38-OXuEr3VTv7RzISu1zjvBZD0k9-2q-T9BAJmsK6oPajJQWKwHBYF3w6vbsQ8tRDdh2uerhlAIWU0YL92gPCmT3mR6HxSGjAx08t-gib_YrzvWn0oTfLNk_BNfAMpG7Mj2GYNbyTkd_tjNZ2fOwVKbygsoFIUEvh2B-xyHOYuhXfxzI8-Gt55FMGDLLKcHfgmOZAUz1xVkIdm6bcuRFuQppgTzYIr66GN6tsr9KxTN2GZ2NHCwexe0hSAGfKVyLr8QBxTDRlzubBqe-osgQJrJtS7uM1MuWK_8grkZrNsn6g3ami0JboEmM_Ct3gVhkXo6lhCCcjn1gnGX-HOLczT3Xty1wYkeayUpi9x326nrSmypxzbzCRS3bOaPvSoBCszri0uTfUnVQK5kTVuRD30fGxauPhA\",\"type\":\"redacted_thinking\"},\"index\":0,\"type\":\"content_block_start\"}\n\nevent: content_block_stop\ndata: {\"index\":0,\"type\":\"content_block_stop\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"text\":\"\",\"type\":\"text\"},\"index\":1,\"type\":\"content_block_start\"}\n\nevent: content_block_delta\ndata: {\"delta\":{\"text\":\"37887\",\"type\":\"text_delta\"},\"index\":1,\"type\":\"content_block_delta\"}\n\nevent: content_block_stop\ndata: {\"index\":1,\"type\":\"content_block_stop\"}\n\nevent: message_delta\ndata: {\"delta\":{\"stop_reason\":\"end_turn\",\"stop_sequence\":null},\"type\":\"message_delta\",\"usage\":{\"cache_creation_input_tokens\":0,\"cache_read_input_tokens\":0,\"input_tokens\":23,\"output_tokens\":143,\"output_tokens_details\":{\"thinking_tokens\":131}}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
+        "body": "event: message_start\ndata: {\"message\":{\"content\":[],\"id\":\"msg_6abb4ccc0beea22bb95a41de\",\"model\":\"muse-spark-1.3\",\"role\":\"assistant\",\"stop_reason\":null,\"stop_sequence\":null,\"type\":\"message\",\"usage\":{\"input_tokens\":0,\"output_tokens\":0}},\"type\":\"message_start\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"data\":\"Q-PaDgGoJiKtl-javJ6dY04Ws79OK_mVBNQgu19iuCSru9wUy0jS0-87v1Lr1jC3I6cI8gnBvTl3HcRgR8MqmTOddFg5f_QSqhUweOVsCzaNL18Bjkye_cK3jGmlc9IsGLJ8dGFvFMPwflkMcofmwZ1P0EsMivXgwsDsWuiHP3PAP6_DfKgpVnNoz1oxNXgoVMTaNylNHtKHXpeC4_doHgWONMjhca771bIh_x0sRT-mQlONkr6HHgzzpCftEGOgnELEC7DlmJ46CDe_VSuaiUk8VLeNV4xyNm4XBHoyFuEn2N4tmG6mxo3cQlN2er8lY39XmY5gqy4ZIJddoY4sVFxBfL-axfDDv89hAhTYgXxH4dj4MyAj5TPWdyVZwunw2dRwf9JobQW-HCGcPxW6rqE7znOAegWSLD-mKRGZXNp7-kTY5Wicv9toV-VsBIFc1YpHFRpw36pxZftd2JnbW38dNYH0fO_QYnCknHxE9RA68uFpu_JvvpHOO0sFAuqwOCMynQyqFZRY9vVJBMYnuB_RIY_WCEuZwt7hV9es1aPk2QJyAWFh-LnNDzp9ktLaNwnnJxRpEK1r0PMbUsIQJMuxcNH7lCstE2dGBf02O4lH4HlZSHNsLcZuUjb01HCISf7cQXzIjG6rO_47m52h6bMpYZITElM66XVlKRE5V3wF_7sQ2BaT4g8GLxxTkgh-C0x8ISPVaU773cDvJSuOI-5FlUbviG9oQG_0PxU5ulQDCMSEM4wZENu6ZRlngTloFSxHJfeQvShiy9pC9kv-DuOT1stUT4HqpV0bV7WGrJjlX9l17JbMgjMBwzhNWTJwGiuw2Ya2cCveYgSzxMZtcI_YH9mv0n53c2h7_1Lq2-kVDx_R5UngrMLu9YxjIwIgK_UtbtnTXJ-q5X4DexgovoBPjzc2GOQeK0DoOnfOczVLMALAkQMnyxCQ65ZuawVuJFmIKY9ooznuqWjl5mLxVCn5Fyhk2uTKjFlbW1JO-RdvNF9CMRD2y2bY2Igy4w9Gh1R_xAhM7rwF0dt_p2g8CUjqsEyIn9bSGuRuzXfkxNz7KYfyCD2rkZc1gw8oU7jiLEpNl5gCkcj7bNql7lcDYgJtGSDRwZlIzZcb7MaxFHyFw7dXGtrOIvLL5eF8TOidjaRaY27xkCCBkQXWeIiX0qV5AuojjrpRAJsVVvdT5s2dHd1IYHU0nnsePU1Dd7gyB59upU9W1AaFrXjx0pn4MsNuYDcyLyzihq1lCeK23OSoXkwH9UI-zaLkV6MGUf_K0jMJPr6FrMgYF1x_SpXYOKSXPHhY5UE3pGLIL5_vFCRkAkMcvpw-H3tyljgnCZwt3g-Yuy4Uj05MS3PseQxuUor-0trgRBaBW4AdB925t2D41RJ4xp3HnEpjEkNFJ8Hsqbs3QxyVoTAvElXOrQ\",\"type\":\"redacted_thinking\"},\"index\":0,\"type\":\"content_block_start\"}\n\nevent: content_block_stop\ndata: {\"index\":0,\"type\":\"content_block_stop\"}\n\nevent: content_block_start\ndata: {\"content_block\":{\"text\":\"\",\"type\":\"text\"},\"index\":1,\"type\":\"content_block_start\"}\n\nevent: content_block_delta\ndata: {\"delta\":{\"text\":\"37887\",\"type\":\"text_delta\"},\"index\":1,\"type\":\"content_block_delta\"}\n\nevent: content_block_stop\ndata: {\"index\":1,\"type\":\"content_block_stop\"}\n\nevent: message_delta\ndata: {\"delta\":{\"stop_reason\":\"end_turn\",\"stop_sequence\":null},\"type\":\"message_delta\",\"usage\":{\"cache_creation_input_tokens\":0,\"cache_read_input_tokens\":0,\"input_tokens\":23,\"output_tokens\":198,\"output_tokens_details\":{\"thinking_tokens\":186}}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/minimax-messages/m2-7-streams-default-thinking.json

@@ -11,7 +11,7 @@
       "reasoning"
     ],
     "name": "minimax-messages/m2-7-streams-default-thinking",
-    "recordedAt": "2026-09-07T16:53:20.721Z"
+    "recordedAt": "2026-09-29T05:27:50.902Z"
   },
   "interactions": [
     {
@@ -22,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"MiniMax-M2.7\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}]}],\"stream\":true,\"max_tokens\":1536}"
+        "body": "{\"model\":\"MiniMax-M2.7\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"max_tokens\":1536}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream; charset=utf-8"
         },
-        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"bd0c49bb4f5e6f26b77bab9b5a917484\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"MiniMax-M2.7\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":57,\"output_tokens\":0}}}\n\nevent: ping\ndata: {\"type\":\"ping\"}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"thinking\",\"thinking\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"The user\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" asks: \\\"What is 173 multiplied by 219? Reply with only the final integer.\\\" So we compute 173 * 219. Compute:\\n\\n173 * 219 = \"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"173 * (200 + 19) = 173*200 + 173*19 = 34600 + (173*19). 173*19 = 173*20\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" - 173 = 3460 - 173 = 3287. So total = 34600 + 3287 = 37887.\\n\\nAlternatively compute directly: 219 * \"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"173 = 219 * 173 = (219 * 100) + (219 * 70) + (219 * 3) = 21900 + 15330 + 657\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" = 37887.\\n\\nThus answer is 37887. We must reply with only the final integer: \\\"37887\\\". No extra text.\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"signature_delta\",\"signature\":\"1625da2f905565076ee90b9c2919db39b1719731c0820eca2f2a1c9c28324e87\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":1,\"content_block\":{\"type\":\"text\",\"text\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"text_delta\",\"text\":\"37887\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":1}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"end_turn\"},\"usage\":{\"input_tokens\":57,\"output_tokens\":187,\"output_tokens_details\":{\"thinking_tokens\":184}}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
+        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"419c5ecf093decc95250bc4cc3afce52\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"MiniMax-M2.7\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":0,\"output_tokens\":0,\"cache_creation_input_tokens\":21,\"cache_read_input_tokens\":36}}}\n\nevent: ping\ndata: {\"type\":\"ping\"}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"thinking\",\"thinking\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"The user\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" asks: \\\"What is 173 multiplied by 219? Reply with only the final integer.\\\"\\n\\nWe need to calculate 173 * 219 = ?\\n\\nLet's compute.\\n\\n173 *\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" 219:\\n\\nOption 1: compute 173 * 200 = 34,600 (actually 173*200 = 34,600\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"? Wait 173 * 200 = 34,600? Let's check: 173 * 2 = 346, then times 100 = 34,600. Yes\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\".)\\n\\n173 * 19 = 173 * 20 - 173 = 3,460 - 173 = 3\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\",287.\\n\\nAdd them: 34,600 + 3,287 = 37,887.\\n\\nThus product is 37,887.\\n\\nAlternatively, compute \"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"219 * 173: 219*100 = 21,900; 219*70 = 15,330; 219*3 = 657\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"; sum = 21,900 + 15,330 = 37,230; +657 = 37,887. Same.\\n\\nThus answer: 378\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"87.\\n\\nThe user wants only the final integer. So reply \\\"37887\\\". No other text.\\n\\nThus final answer: 37887.\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"signature_delta\",\"signature\":\"48b0f683a3fb6cfc2e060ff709c12a905c76d2e5bdddc709fb5b1cfc5aa600f7\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":1,\"content_block\":{\"type\":\"text\",\"text\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"text_delta\",\"text\":\"37887\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":1}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"end_turn\"},\"usage\":{\"input_tokens\":0,\"output_tokens\":259,\"cache_creation_input_tokens\":21,\"cache_read_input_tokens\":36,\"output_tokens_details\":{\"thinking_tokens\":256}}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/minimax-messages/m3-continues-a-tool-loop-with-adaptive-thinking.json

@@ -13,7 +13,7 @@
       "usage"
     ],
     "name": "minimax-messages/m3-continues-a-tool-loop-with-adaptive-thinking",
-    "recordedAt": "2026-09-07T16:53:25.185Z"
+    "recordedAt": "2026-09-29T05:27:53.421Z"
   },
   "interactions": [
     {
@@ -24,14 +24,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"MiniMax-M3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Look up the current weather in Paris using get_weather before answering. After receiving the result, report the weather in one short sentence.\"}]}],\"tools\":[{\"name\":\"get_weather\",\"description\":\"Get the current weather in a city\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false}}],\"tool_choice\":{\"type\":\"auto\"},\"stream\":true,\"max_tokens\":1536,\"thinking\":{\"type\":\"adaptive\"}}"
+        "body": "{\"model\":\"MiniMax-M3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Look up the current weather in Paris using get_weather before answering. After receiving the result, report the weather in one short sentence.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"tools\":[{\"name\":\"get_weather\",\"description\":\"Get the current weather in a city\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"cache_control\":{\"type\":\"ephemeral\"}}],\"tool_choice\":{\"type\":\"auto\"},\"stream\":true,\"max_tokens\":1536,\"thinking\":{\"type\":\"adaptive\"}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream; charset=utf-8"
         },
-        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"6a532037868639a6189e7c0b9e1c9aa2\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"MiniMax-M3\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":0,\"output_tokens\":0,\"service_tier\":\"standard\"},\"service_tier\":\"standard\"}}\n\nevent: ping\ndata: {\"type\":\"ping\"}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"thinking\",\"thinking\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"The user wants me\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" to look up the\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" current weather in Paris\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" using the get_\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"weather tool, then\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" report it\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" in one short sentence\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\". Let\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" me call the tool\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\".\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"signature_delta\",\"signature\":\"f05cb5f4873950f23d194289c41d79b96ebd37c9411a45b306ed44f135a910d4\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":1,\"content_block\":{\"type\":\"tool_use\",\"id\":\"call_01a07cc9f2d47d83a6424ff3\",\"name\":\"get_weather\",\"input\":{}}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"{\\\"city\\\":\\\"Paris\\\"}\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":1}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"tool_use\"},\"usage\":{\"input_tokens\":239,\"output_tokens\":63,\"cache_read_input_tokens\":203,\"service_tier\":\"standard\",\"output_tokens_details\":{\"thinking_tokens\":33}}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
+        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"6e8c4645c02dd05c2f08c22e5eba9a89\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"MiniMax-M3\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":0,\"output_tokens\":0,\"service_tier\":\"standard\"},\"service_tier\":\"standard\"}}\n\nevent: ping\ndata: {\"type\":\"ping\"}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"thinking\",\"thinking\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"The user wants me\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" to look up the\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" current weather in Paris\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" using the get_\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"weather tool, then\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" report the weather in\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" one short sentence after\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" receiving the result.\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" Let\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" me call the tool\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\".\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"signature_delta\",\"signature\":\"61f13458806572210eb8e1809b12f191297eea1a7f0104aa12f86595ef5eb1dc\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":1,\"content_block\":{\"type\":\"tool_use\",\"id\":\"call_01a0eba239b7718ba67e5aa3\",\"name\":\"get_weather\",\"input\":{}}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"{\\\"city\\\":\\\"Paris\\\"}\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":1}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"tool_use\"},\"usage\":{\"input_tokens\":239,\"output_tokens\":68,\"cache_read_input_tokens\":203,\"service_tier\":\"standard\",\"output_tokens_details\":{\"thinking_tokens\":38}}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
       }
     },
     {
@@ -42,14 +42,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"MiniMax-M3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Look up the current weather in Paris using get_weather before answering. After receiving the result, report the weather in one short sentence.\"}]},{\"role\":\"assistant\",\"content\":[{\"type\":\"thinking\",\"thinking\":\"The user wants me to look up the current weather in Paris using the get_weather tool, then report it in one short sentence. Let me call the tool.\",\"signature\":\"f05cb5f4873950f23d194289c41d79b96ebd37c9411a45b306ed44f135a910d4\"},{\"type\":\"tool_use\",\"id\":\"call_01a07cc9f2d47d83a6424ff3\",\"name\":\"get_weather\",\"input\":{\"city\":\"Paris\"}}]},{\"role\":\"user\",\"content\":[{\"type\":\"tool_result\",\"tool_use_id\":\"call_01a07cc9f2d47d83a6424ff3\",\"content\":\"{\\\"condition\\\":\\\"sunny\\\",\\\"temperature\\\":\\\"18C\\\"}\"}]}],\"tools\":[{\"name\":\"get_weather\",\"description\":\"Get the current weather in a city\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false}}],\"tool_choice\":{\"type\":\"none\"},\"stream\":true,\"max_tokens\":1536,\"thinking\":{\"type\":\"adaptive\"}}"
+        "body": "{\"model\":\"MiniMax-M3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Look up the current weather in Paris using get_weather before answering. After receiving the result, report the weather in one short sentence.\"}]},{\"role\":\"assistant\",\"content\":[{\"type\":\"thinking\",\"thinking\":\"The user wants me to look up the current weather in Paris using the get_weather tool, then report the weather in one short sentence after receiving the result. Let me call the tool.\",\"signature\":\"61f13458806572210eb8e1809b12f191297eea1a7f0104aa12f86595ef5eb1dc\"},{\"type\":\"tool_use\",\"id\":\"call_01a0eba239b7718ba67e5aa3\",\"name\":\"get_weather\",\"input\":{\"city\":\"Paris\"}}]},{\"role\":\"user\",\"content\":[{\"type\":\"tool_result\",\"tool_use_id\":\"call_01a0eba239b7718ba67e5aa3\",\"content\":\"{\\\"condition\\\":\\\"sunny\\\",\\\"temperature\\\":\\\"18C\\\"}\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"tools\":[{\"name\":\"get_weather\",\"description\":\"Get the current weather in a city\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"cache_control\":{\"type\":\"ephemeral\"}}],\"tool_choice\":{\"type\":\"none\"},\"stream\":true,\"max_tokens\":1536,\"thinking\":{\"type\":\"adaptive\"}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream; charset=utf-8"
         },
-        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"e9e7ea89f63eca1cd17a037aef28eed1\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"MiniMax-M3\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":0,\"output_tokens\":0,\"service_tier\":\"standard\"},\"service_tier\":\"standard\"}}\n\nevent: ping\ndata: {\"type\":\"ping\"}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"text\",\"text\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\"The weather\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\" in Paris is sunny\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\" with\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\" a\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\" temperature of 18\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\"°C.\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"end_turn\"},\"usage\":{\"input_tokens\":164,\"output_tokens\":16,\"cache_read_input_tokens\":128,\"service_tier\":\"standard\"}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
+        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"0f6a842fc54eecab0d6df9ffebd8dd3b\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"MiniMax-M3\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":0,\"output_tokens\":0,\"service_tier\":\"standard\"},\"service_tier\":\"standard\"}}\n\nevent: ping\ndata: {\"type\":\"ping\"}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"thinking\",\"thinking\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"The weather\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" in Paris is sunny\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" with a\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" temperature of 18\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"°C. I'll\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" report this in one\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"short sentence.\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"signature_delta\",\"signature\":\"fefe2c0e5f3f0a0edc24b21d37c8b7fb12ed0755bd1898f71acc2325f1b35958\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":1,\"content_block\":{\"type\":\"text\",\"text\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"text_delta\",\"text\":\"It's\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"text_delta\",\"text\":\" currently\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"text_delta\",\"text\":\" sunny in\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"text_delta\",\"text\":\" Paris with a temperature\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"text_delta\",\"text\":\" of 18°C\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"text_delta\",\"text\":\".\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":1}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"end_turn\"},\"usage\":{\"input_tokens\":169,\"output_tokens\":38,\"cache_read_input_tokens\":128,\"service_tier\":\"standard\",\"output_tokens_details\":{\"thinking_tokens\":22}}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/minimax-messages/m3-generates-a-named-tool-call-with-default-thinking-off.json

@@ -11,7 +11,7 @@
       "usage"
     ],
     "name": "minimax-messages/m3-generates-a-named-tool-call-with-default-thinking-off",
-    "recordedAt": "2026-09-07T16:53:24.366Z"
+    "recordedAt": "2026-09-29T05:27:51.660Z"
   },
   "interactions": [
     {
@@ -22,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"MiniMax-M3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Use get_weather to look up the current weather in Paris.\"}]}],\"tools\":[{\"name\":\"get_weather\",\"description\":\"Get the current weather in a city\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false}}],\"tool_choice\":{\"type\":\"tool\",\"name\":\"get_weather\"},\"stream\":true,\"max_tokens\":512}"
+        "body": "{\"model\":\"MiniMax-M3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Use get_weather to look up the current weather in Paris.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"tools\":[{\"name\":\"get_weather\",\"description\":\"Get the current weather in a city\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"cache_control\":{\"type\":\"ephemeral\"}}],\"tool_choice\":{\"type\":\"tool\",\"name\":\"get_weather\"},\"stream\":true,\"max_tokens\":512}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream; charset=utf-8"
         },
-        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"a60a8adb2eff7545f809b9df2689f1b8\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"MiniMax-M3\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":0,\"output_tokens\":0,\"service_tier\":\"standard\"},\"service_tier\":\"standard\"}}\n\nevent: ping\ndata: {\"type\":\"ping\"}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"text\",\"text\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\"I'll\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\" look\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\" up the current weather\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\" in Paris for you\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\".\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":1,\"content_block\":{\"type\":\"tool_use\",\"id\":\"call_b0246853f3c4432ea455cc99\",\"name\":\"get_weather\",\"input\":{}}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"{\\\"city\\\":\\\"Paris\\\"}\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":1}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"tool_use\"},\"usage\":{\"input_tokens\":401,\"output_tokens\":39,\"service_tier\":\"standard\"}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
+        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"5f4a7ce22c5a82497fedc65028aa4825\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"MiniMax-M3\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":0,\"output_tokens\":0,\"service_tier\":\"standard\"},\"service_tier\":\"standard\"}}\n\nevent: ping\ndata: {\"type\":\"ping\"}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"text\",\"text\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\"I'll\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\" look\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\" up the current weather\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\" in Paris for you\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\".\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":1,\"content_block\":{\"type\":\"tool_use\",\"id\":\"call_01a0eba235fb7281a0f2ea2c\",\"name\":\"get_weather\",\"input\":{}}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"{\\\"city\\\":\\\"Paris\\\"}\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":1}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"tool_use\"},\"usage\":{\"input_tokens\":287,\"output_tokens\":39,\"cache_read_input_tokens\":128,\"service_tier\":\"standard\"}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/minimax-messages/m3-streams-text-with-thinking-disabled.json

@@ -11,7 +11,7 @@
       "thinking-off"
     ],
     "name": "minimax-messages/m3-streams-text-with-thinking-disabled",
-    "recordedAt": "2026-09-07T16:53:16.028Z"
+    "recordedAt": "2026-09-29T05:27:36.888Z"
   },
   "interactions": [
     {
@@ -22,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"MiniMax-M3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}]}],\"stream\":true,\"max_tokens\":1536,\"thinking\":{\"type\":\"disabled\"}}"
+        "body": "{\"model\":\"MiniMax-M3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"max_tokens\":1536,\"thinking\":{\"type\":\"disabled\"}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream; charset=utf-8"
         },
-        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"01664c047875a0f573c966467c8cccc1\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"MiniMax-M3\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":0,\"output_tokens\":0,\"service_tier\":\"standard\"},\"service_tier\":\"standard\"}}\n\nevent: ping\ndata: {\"type\":\"ping\"}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"text\",\"text\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\"378\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\"87\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"end_turn\"},\"usage\":{\"input_tokens\":51,\"output_tokens\":3,\"cache_read_input_tokens\":128,\"service_tier\":\"standard\"}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
+        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"444066751666f2071c999bfd0b4c16b0\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"MiniMax-M3\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":0,\"output_tokens\":0,\"service_tier\":\"standard\"},\"service_tier\":\"standard\"}}\n\nevent: ping\ndata: {\"type\":\"ping\"}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"text\",\"text\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\"378\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"text_delta\",\"text\":\"87\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"end_turn\"},\"usage\":{\"input_tokens\":179,\"output_tokens\":3,\"service_tier\":\"standard\"}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/moonshot-messages/k3-respects-tool-choice-required.json

@@ -2,9 +2,16 @@
   "version": 1,
   "metadata": {
     "model": "kimi-k3",
-    "tags": ["prefix:moonshot-messages", "provider:moonshot", "protocol:messages", "tool", "tool-choice", "usage"],
+    "tags": [
+      "prefix:moonshot-messages",
+      "provider:moonshot",
+      "protocol:messages",
+      "tool",
+      "tool-choice",
+      "usage"
+    ],
     "name": "moonshot-messages/k3-respects-tool-choice-required",
-    "recordedAt": "2026-09-07T20:37:07.770Z"
+    "recordedAt": "2026-09-29T05:28:21.798Z"
   },
   "interactions": [
     {
@@ -15,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"kimi-k3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Use get_weather to look up the current weather in Paris.\"}]}],\"tools\":[{\"name\":\"get_weather\",\"description\":\"Get the current weather in a city\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false}}],\"tool_choice\":{\"type\":\"any\"},\"stream\":true,\"max_tokens\":4096,\"output_config\":{\"effort\":\"low\"}}"
+        "body": "{\"model\":\"kimi-k3\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Use get_weather to look up the current weather in Paris.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"tools\":[{\"name\":\"get_weather\",\"description\":\"Get the current weather in a city\",\"input_schema\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"cache_control\":{\"type\":\"ephemeral\"}}],\"tool_choice\":{\"type\":\"any\"},\"stream\":true,\"max_tokens\":4096,\"output_config\":{\"effort\":\"low\"}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream"
         },
-        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"chatcmpl-2f2e02780e8a031b1b1307171\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"kimi-k3\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":223,\"cache_creation_input_tokens\":0,\"cache_read_input_tokens\":0,\"output_tokens\":0,\"service_tier\":\"standard\",\"inference_geo\":\"not_available\",\"prompt_tokens\":223,\"cached_tokens\":0}}}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"thinking\",\"thinking\":\"\",\"signature\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"Need\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" use\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" get\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"_we\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"ather\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" for\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" Paris\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\".\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" Call\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" function\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\".\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" Then\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" final\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" summarize\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" result\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\".\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" Use\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" tool\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\".\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":1,\"content_block\":{\"type\":\"tool_use\",\"id\":\"get_weather_0\",\"name\":\"get_weather\",\"input\":{}}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"{\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"\\\"city\\\": \\\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"Paris\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"\\\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"}\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":1}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"tool_use\",\"stop_sequence\":null},\"usage\":{\"input_tokens\":0,\"cache_creation_input_tokens\":0,\"cache_read_input_tokens\":223,\"output_tokens\":69,\"output_tokens_details\":{\"thinking_tokens\":19},\"prompt_tokens\":223,\"completion_tokens\":69,\"total_tokens\":292,\"cached_tokens\":223}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
+        "body": "event: message_start\ndata: {\"type\":\"message_start\",\"message\":{\"id\":\"chatcmpl-c877bb3f-cb6b-9d0f-b91e-37849d7bff39\",\"type\":\"message\",\"role\":\"assistant\",\"content\":[],\"model\":\"kimi-k3\",\"stop_reason\":null,\"stop_sequence\":null,\"usage\":{\"input_tokens\":223,\"cache_creation_input_tokens\":0,\"cache_read_input_tokens\":0,\"output_tokens\":0,\"cache_creation\":{\"ephemeral_5m_input_tokens\":0,\"ephemeral_1h_input_tokens\":0},\"service_tier\":\"standard\",\"inference_geo\":\"not_available\",\"prompt_tokens\":223,\"cached_tokens\":0}}}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"thinking\",\"thinking\":\"\",\"signature\":\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\"The\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" user explicitly\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" asks to use\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" get_weather for\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" Paris. Need call\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" the\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" tool. Do\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":0,\"delta\":{\"type\":\"thinking_delta\",\"thinking\":\" that.\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":0}\n\nevent: content_block_start\ndata: {\"type\":\"content_block_start\",\"index\":1,\"content_block\":{\"type\":\"tool_use\",\"id\":\"get_weather_0_7e180ea4\",\"name\":\"get_weather\",\"input\":{}}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"{\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"\\\"city\\\":\\\"Paris\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"\\\"\"}}\n\nevent: content_block_delta\ndata: {\"type\":\"content_block_delta\",\"index\":1,\"delta\":{\"type\":\"input_json_delta\",\"partial_json\":\"}\"}}\n\nevent: content_block_stop\ndata: {\"type\":\"content_block_stop\",\"index\":1}\n\nevent: message_delta\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"tool_use\",\"stop_sequence\":null},\"usage\":{\"input_tokens\":223,\"cache_creation_input_tokens\":0,\"cache_read_input_tokens\":0,\"output_tokens\":73,\"cache_creation\":{\"ephemeral_5m_input_tokens\":0,\"ephemeral_1h_input_tokens\":0},\"output_tokens_details\":{\"thinking_tokens\":20},\"prompt_tokens\":223,\"completion_tokens\":73,\"total_tokens\":296,\"cached_tokens\":0}}\n\nevent: message_stop\ndata: {\"type\":\"message_stop\"}\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/openrouter-reasoning.json

@@ -4,7 +4,7 @@
     "model": "anthropic/claude-sonnet-4.6",
     "tags": ["prefix:openai-compatible-chat", "provider:openrouter", "protocol:openai-chat", "reasoning"],
     "name": "openrouter-reasoning",
-    "recordedAt": "2026-07-18T11:28:39.267Z"
+    "recordedAt": "2026-09-29T16:19:02.835Z"
   },
   "interactions": [
     {
@@ -15,14 +15,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"anthropic/claude-sonnet-4.6\",\"messages\":[{\"role\":\"system\",\"content\":\"Think through the arithmetic, then reply with only the final integer.\"},{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219?\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"temperature\":0,\"reasoning\":{\"max_tokens\":1024},\"max_completion_tokens\":1536,\"store\":false,\"usage\":{\"include\":true}}"
+        "body": "{\"model\":\"anthropic/claude-sonnet-4.6\",\"messages\":[{\"role\":\"system\",\"content\":[{\"type\":\"text\",\"text\":\"Think through the arithmetic, then reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]},{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219?\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"store\":false,\"max_completion_tokens\":1536,\"temperature\":0,\"usage\":{\"include\":true},\"reasoning\":{\"max_tokens\":1024}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream"
         },
-        "body": ": OPENROUTER PROCESSING\n\n: OPENROUTER PROCESSING\n\ndata: {\"id\":\"gen-1784374117-AXXPsQRoclZeQGx2uHeK\",\"object\":\"chat.completion.chunk\",\"created\":1784374117,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Anthropic\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning\":\"173\",\"reasoning_details\":[{\"type\":\"reasoning.text\",\"text\":\"173\",\"format\":\"anthropic-claude-v1\",\"index\":0}]},\"finish_reason\":null,\"native_finish_reason\":null}]}\n\n: OPENROUTER PROCESSING\n\ndata: {\"id\":\"gen-1784374117-AXXPsQRoclZeQGx2uHeK\",\"object\":\"chat.completion.chunk\",\"created\":1784374117,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Anthropic\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning\":\" × 219\\n\\n173 × 200 = 34,600\\n173 × 19 = 173 × 20 - 173 = 3,460 - 173 = 3,287\",\"reasoning_details\":[{\"type\":\"reasoning.text\",\"text\":\" × 219\\n\\n173 × 200 = 34,600\\n173 × 19 = 173 × 20 - 173 = 3,460 - 173 = 3,287\",\"format\":\"anthropic-claude-v1\",\"index\":0}]},\"finish_reason\":null,\"native_finish_reason\":null}]}\n\ndata: {\"id\":\"gen-1784374117-AXXPsQRoclZeQGx2uHeK\",\"object\":\"chat.completion.chunk\",\"created\":1784374117,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Anthropic\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning\":\"\\n\\n34,600 + 3,287 = 37,887\",\"reasoning_details\":[{\"type\":\"reasoning.text\",\"text\":\"\\n\\n34,600 + 3,287 = 37,887\",\"format\":\"anthropic-claude-v1\",\"index\":0}]},\"finish_reason\":null,\"native_finish_reason\":null}]}\n\ndata: {\"id\":\"gen-1784374117-AXXPsQRoclZeQGx2uHeK\",\"object\":\"chat.completion.chunk\",\"created\":1784374117,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Anthropic\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning_details\":[{\"type\":\"reasoning.text\",\"signature\":\"EtgCCosBCA8YAipA0W4viH3kgBs43Cl5ewwVBPXTQElvzfbA2TLF4iSbKy9ZZDCSDjjAlF3Bs4ELEnP3vrrTuTioC6OB380lXQdyIDIRY2xhdWRlLXNvbm5ldC00LTY4AEIIdGhpbmtpbmdaJDRjMGYwNDZmLTI1ZmQtNDVmYi1iZmIzLWEwOGE4ZTI0OWNhNxIMMiUlJC3x/5p5PuTwGgwlc8eipZyoM94BHwMiMO45uQx/ymeOjbugi7RDVPZ4jZXSIiEbVi2CD7zPjAK5fFQoVGP1HD55v9CER823JCp6Dg5Xb7Lrk6NUd1XN2KTKrttK7mATE+IBrDTFmor/1cNeg+9gjIbxM/jn/6L5HPmh3/esEVu24Q0IGLZVoE7cTgGgxsrceKMD71Jp2XQgIWD8ltsPfWw3gSc4p+z18UuPN6LuR0mHHENTnClHrAPnOrxbDIl4ZwZgMX8YAQ==\",\"format\":\"anthropic-claude-v1\",\"index\":0}]},\"finish_reason\":null,\"native_finish_reason\":null}]}\n\ndata: {\"id\":\"gen-1784374117-AXXPsQRoclZeQGx2uHeK\",\"object\":\"chat.completion.chunk\",\"created\":1784374117,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Anthropic\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"37887\",\"role\":\"assistant\"},\"finish_reason\":null,\"native_finish_reason\":null}]}\n\ndata: {\"id\":\"gen-1784374117-AXXPsQRoclZeQGx2uHeK\",\"object\":\"chat.completion.chunk\",\"created\":1784374117,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Anthropic\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning\":null},\"finish_reason\":\"stop\",\"native_finish_reason\":\"end_turn\"}]}\n\ndata: {\"id\":\"gen-1784374117-AXXPsQRoclZeQGx2uHeK\",\"object\":\"chat.completion.chunk\",\"created\":1784374117,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Anthropic\",\"service_tier\":\"default\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\"},\"finish_reason\":\"stop\",\"native_finish_reason\":\"end_turn\"}],\"usage\":{\"prompt_tokens\":61,\"completion_tokens\":80,\"total_tokens\":141,\"cost\":0.001383,\"is_byok\":false,\"prompt_tokens_details\":{\"cached_tokens\":0,\"cache_write_tokens\":0,\"audio_tokens\":0,\"video_tokens\":0},\"cache_creation\":{\"ephemeral_5m_input_tokens\":0,\"ephemeral_1h_input_tokens\":0},\"cost_details\":{\"upstream_inference_cost\":0.001383,\"upstream_inference_prompt_cost\":0.000183,\"upstream_inference_completions_cost\":0.0012},\"completion_tokens_details\":{\"reasoning_tokens\":29,\"image_tokens\":0,\"audio_tokens\":0}}}\n\ndata: [DONE]\n\n"
+        "body": "data: {\"id\":\"gen-1790698739-Acm5E9n2uVTO14sqrick\",\"object\":\"chat.completion.chunk\",\"created\":1790698739,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Claude Platform on AWS\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning\":\"173\",\"reasoning_details\":[{\"type\":\"reasoning.text\",\"text\":\"173\",\"format\":\"anthropic-claude-v1\",\"index\":0}]},\"finish_reason\":null,\"native_finish_reason\":null}]}\n\n: OPENROUTER PROCESSING\n\ndata: {\"id\":\"gen-1790698739-Acm5E9n2uVTO14sqrick\",\"object\":\"chat.completion.chunk\",\"created\":1790698739,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Claude Platform on AWS\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning\":\" × 219\\n\\n173 × 200 = 34,600\\n173 × 19 = 173 × 20 - 173 = 3,460 - 173 = 3,287\\n\\n34,600 + 3,287 = 37,887\",\"reasoning_details\":[{\"type\":\"reasoning.text\",\"text\":\" × 219\\n\\n173 × 200 = 34,600\\n173 × 19 = 173 × 20 - 173 = 3,460 - 173 = 3,287\\n\\n34,600 + 3,287 = 37,887\",\"format\":\"anthropic-claude-v1\",\"index\":0}]},\"finish_reason\":null,\"native_finish_reason\":null}]}\n\ndata: {\"id\":\"gen-1790698739-Acm5E9n2uVTO14sqrick\",\"object\":\"chat.completion.chunk\",\"created\":1790698739,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Claude Platform on AWS\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning_details\":[{\"type\":\"reasoning.text\",\"signature\":\"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.eyJlbmRwb2ludF9zbHVnIjoiYW50aHJvcGljL2NsYXVkZS00LjYtc29ubmV0LTIwMjYwMjE3fGNsYXVkZS1vbi1hd3MifQ\",\"format\":\"anthropic-claude-v1\",\"index\":0}]},\"finish_reason\":null,\"native_finish_reason\":null}]}\n\ndata: {\"id\":\"gen-1790698739-Acm5E9n2uVTO14sqrick\",\"object\":\"chat.completion.chunk\",\"created\":1790698739,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Claude Platform on AWS\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"37\",\"role\":\"assistant\"},\"finish_reason\":null,\"native_finish_reason\":null}]}\n\ndata: {\"id\":\"gen-1790698739-Acm5E9n2uVTO14sqrick\",\"object\":\"chat.completion.chunk\",\"created\":1790698739,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Claude Platform on AWS\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"887\",\"role\":\"assistant\"},\"finish_reason\":null,\"native_finish_reason\":null}]}\n\ndata: {\"id\":\"gen-1790698739-Acm5E9n2uVTO14sqrick\",\"object\":\"chat.completion.chunk\",\"created\":1790698739,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Claude Platform on AWS\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning\":null},\"finish_reason\":\"stop\",\"native_finish_reason\":\"end_turn\"}]}\n\ndata: {\"id\":\"gen-1790698739-Acm5E9n2uVTO14sqrick\",\"object\":\"chat.completion.chunk\",\"created\":1790698739,\"model\":\"anthropic/claude-sonnet-4.6\",\"provider\":\"Claude Platform on AWS\",\"service_tier\":\"default\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\"},\"finish_reason\":\"stop\",\"native_finish_reason\":\"end_turn\"}],\"usage\":{\"prompt_tokens\":61,\"completion_tokens\":80,\"total_tokens\":141,\"cost\":0.001383,\"is_byok\":false,\"prompt_tokens_details\":{\"cached_tokens\":0,\"cache_write_tokens\":0,\"audio_tokens\":0,\"video_tokens\":0},\"cost_details\":{\"upstream_inference_cost\":0.001383,\"upstream_inference_prompt_cost\":0.000183,\"upstream_inference_completions_cost\":0.0012},\"completion_tokens_details\":{\"reasoning_tokens\":73,\"image_tokens\":0,\"audio_tokens\":0}}}\n\ndata: [DONE]\n\n"
       }
     }
   ]

packages/ai/test/provider-error.test.ts

@@ -1,12 +1,13 @@
 import { describe, expect, test } from "bun:test"
 import { isContextOverflow } from "../src/index.js"
-import { classifyProviderFailure } from "../src/provider-error.js"
+import { classifyProviderFailure, providerErrorMessage } from "../src/provider-error.js"
 
 describe("provider error classification", () => {
   test("classifies provider token limit messages as context overflow", () => {
     const messages = [
       "tokens in request more than max tokens allowed",
       "Requested token count exceeds the model's maximum context length of 131072 tokens.",
+      "Requested input length 600010 exceeds maximum input length 131071",
       "Input length (265330) exceeds model's maximum context length (262144).",
       "Input length 131393 exceeds the maximum allowed input length of 131040 tokens.",
       "The input (516368 tokens) is longer than the model's context length (262144 tokens).",
@@ -355,6 +356,34 @@ describe("provider error rawBody classification", () => {
     }
   })
 
+  test("classifies Workers AI context window rejections as context overflow despite HTTP 413", () => {
+    const message =
+      "AiError: Ai: The estimated number of input and maximum output tokens (900047) exceeded this model context window limit (32000). (17851589-f2e6-405d-b67c-5550e52ee1c1)"
+    const reason = classifyProviderFailure({
+      message,
+      status: 413,
+      rawBody: JSON.stringify({ errors: [{ message, code: 5021 }], success: false, result: {}, messages: [] }),
+    })
+    expect(reason._tag === "InvalidRequest" ? reason.classification : reason._tag).toBe("context-overflow")
+  })
+
+  test("classifies Amazon Nova input token rejections as context overflow", () => {
+    const message =
+      "The model returned the following errors: Input Tokens Exceeded: Number of input tokens exceeds maximum length. Please update the input to try again."
+    const reason = classifyProviderFailure({
+      message,
+      rawBody: JSON.stringify({
+        headers: {
+          ":exception-type": { type: "string", value: "validationException" },
+          ":content-type": { type: "string", value: "application/json" },
+          ":message-type": { type: "string", value: "exception" },
+        },
+        body: JSON.stringify({ message }),
+      }),
+    })
+    expect(reason._tag === "InvalidRequest" ? reason.classification : reason._tag).toBe("context-overflow")
+  })
+
   test("classifies Google invalid API keys as authentication failures", () => {
     const rawBody = JSON.stringify({
       error: {
@@ -396,3 +425,42 @@ describe("provider error rawBody classification", () => {
     ).toBe("QuotaExceeded")
   })
 })
+
+describe("provider error messages", () => {
+  test("reads messages from common error body layouts", () => {
+    expect(
+      [
+        '{"error":{"message":"Invalid API Key","type":"invalid_request_error"}}',
+        '{"code":"invalid-argument","error":"Incorrect API key provided."}',
+        '{"message":"1 validation error detected"}',
+        '{"Message":"Invalid API Key format: Must start with pre-defined prefix"}',
+        '{"type":"about:blank","title":"Gone","status":410,"detail":"The model has reached its end of life"}',
+        '{"result":null,"success":false,"errors":[{"code":10000,"message":"Authentication error"}]}',
+      ].map(providerErrorMessage),
+    ).toEqual([
+      "Invalid API Key",
+      "Incorrect API key provided.",
+      "1 validation error detected",
+      "Invalid API Key format: Must start with pre-defined prefix",
+      "The model has reached its end of life",
+      "Authentication error",
+    ])
+  })
+
+  test("prefers the nested error message over a top-level message", () => {
+    expect(providerErrorMessage('{"message":"Bad Request","error":{"message":"model not found"}}')).toBe(
+      "model not found",
+    )
+  })
+
+  test("ignores blank, non-string, and non-JSON messages", () => {
+    expect(
+      [
+        '{"error":{"message":"  "}}',
+        '{"message":{"detail":[{"msg":"too high"}]}}',
+        '{"errors":[]}',
+        "invalid parameter",
+      ].map(providerErrorMessage),
+    ).toEqual([undefined, undefined, undefined, undefined])
+  })
+})

packages/ai/test/provider/bedrock-converse-thinking-binding.recorded.test.ts

@@ -0,0 +1,103 @@
+import { describe, expect } from "bun:test"
+import { Effect } from "effect"
+import { LLM, LLMRequest, Message } from "../../src/index.js"
+import { LLMClient } from "../../src/route.js"
+import { AmazonBedrock } from "../../src/providers.js"
+import { recordedTests } from "../recorded-test.js"
+
+const RECORDING_REGION = process.env.BEDROCK_RECORDING_REGION ?? "us-east-1"
+
+// Claude Opus 5.5 enforces the conversation-prefix check on Bedrock, so a changed system prompt is a real
+// mismatch. Override with BEDROCK_BINDING_MODEL_ID for another model that enforces it.
+const modelID = process.env.BEDROCK_BINDING_MODEL_ID ?? "global.anthropic.claude-opus-5-5"
+
+// Mirrors the "high" variant, so the recording covers the real overlay and default merge.
+const model = (blockBinding?: { readonly prefix_mismatch_behavior: string }) =>
+  AmazonBedrock.model(modelID, {
+    apiKey: process.env.AWS_BEARER_TOKEN_BEDROCK ?? "fixture",
+    region: RECORDING_REGION,
+    body: {
+      additionalModelRequestFields: {
+        thinking: { type: "adaptive", display: "summarized", ...(blockBinding ? { block_binding: blockBinding } : {}) },
+        output_config: { effort: "high" },
+      },
+    },
+  })
+
+const question = "How many positive integers below 5000 have exactly 12 positive divisors? Reply with the number only."
+
+const first = LLM.request({
+  id: "recorded_bedrock_thinking_binding_first",
+  model: model(),
+  system: "You are a concise assistant.",
+  prompt: question,
+  cache: "none",
+  generation: { maxTokens: 12_000 },
+})
+
+const recorded = recordedTests({
+  prefix: "bedrock-converse-thinking-binding",
+  provider: "amazon-bedrock",
+  protocol: "bedrock-converse",
+  requires: ["AWS_BEARER_TOKEN_BEDROCK"],
+})
+
+describe("Bedrock Converse thinking binding recorded", () => {
+  recorded.effect.with("accepts the default binding with no thinking configured", { tags: ["reasoning"] }, () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          id: "recorded_bedrock_thinking_binding_default",
+          model: AmazonBedrock.model(modelID, {
+            apiKey: process.env.AWS_BEARER_TOKEN_BEDROCK ?? "fixture",
+            region: RECORDING_REGION,
+          }),
+          system: "Reply with the single word 'Hello'.",
+          prompt: "Say hello.",
+          cache: "none",
+          generation: { maxTokens: 1_024 },
+        }),
+      )
+
+      expect(response.finishReason?.normalized).toBe("stop")
+      expect(response.text).toMatch(/hello/i)
+    }),
+  )
+
+  recorded.effect.with(
+    "keeps a session working after the system prompt changes",
+    { tags: ["reasoning"] },
+    () =>
+      Effect.gen(function* () {
+        const turn = yield* LLMClient.generate(first)
+        // The signed thinking block is what Bedrock binds to the first system prompt.
+        expect(turn.message.content.some((part) => part.type === "reasoning")).toBe(true)
+
+        // Replay the assistant turn under a different system prompt, as a prompt rebuild or compaction would.
+        const next = LLMRequest.update(first, {
+          id: "recorded_bedrock_thinking_binding_next",
+          system: [{ type: "text", text: "You are a concise assistant. Today is Monday." }],
+          messages: [
+            ...first.messages,
+            Message.assistant(turn.message.content),
+            Message.user("Now double it. Reply with the number only."),
+          ],
+        })
+
+        const bound = yield* LLMClient.generate(next)
+        expect(bound.finishReason?.normalized).toBe("stop")
+        expect(bound.text).toMatch(/\d/)
+
+        // The same replay is rejected when the caller asks for the default `error` behavior, proving the check is
+        // enforced and that the default `drop_block` is what let the request above through.
+        const rejected = yield* LLMClient.generate(
+          LLMRequest.update(next, {
+            id: "recorded_bedrock_thinking_binding_error",
+            model: model({ prefix_mismatch_behavior: "error" }),
+          }),
+        ).pipe(Effect.flip)
+        expect(rejected.message).toContain("bound to a different conversation")
+      }),
+    60_000,
+  )
+})

packages/ai/test/provider/bedrock-converse-thinking-binding.test.ts

@@ -0,0 +1,100 @@
+import { describe, expect } from "bun:test"
+import { Effect } from "effect"
+import { GenerationOptions, LanguageModel, LLM } from "../../src/index.js"
+import { compileRequest } from "../../src/route/client.js"
+import { AmazonBedrock } from "../../src/providers.js"
+import { it } from "../lib/effect.js"
+
+const binding = { prefix_mismatch_behavior: "drop_block" }
+const beta = ["thinking-binding-controls-2026-08-01"]
+
+const bedrock = (id: string, settings: Parameters<typeof AmazonBedrock.model>[1] = {}) =>
+  AmazonBedrock.model(id, { baseURL: "https://bedrock-runtime.test", apiKey: "test-bearer", ...settings })
+
+const fields = (model: LanguageModel, generation?: GenerationOptions) =>
+  compileRequest(
+    LLM.request({ id: "req_1", model, system: "You are concise.", prompt: "Say hello.", cache: "none", generation }),
+  ).pipe(Effect.map((prepared) => prepared.body.additionalModelRequestFields))
+
+describe("Bedrock Converse thinking block binding", () => {
+  for (const id of [
+    "global.anthropic.claude-fable-5-1",
+    "us.anthropic.claude-fable-5-1-v1:0",
+    "anthropic.claude-fable-5.1",
+    "anthropic.claude-mythos-5-1",
+    "us.anthropic.claude-opus-5-5",
+    "global.anthropic.claude-sonnet-5-5",
+    "anthropic.claude-opus-6",
+  ]) {
+    it.effect(`defaults adaptive thinking to drop_block with the beta for ${id}`, () =>
+      Effect.gen(function* () {
+        expect(yield* fields(bedrock(id))).toEqual({
+          thinking: { type: "adaptive", block_binding: binding },
+          anthropic_beta: beta,
+        })
+      }),
+    )
+  }
+
+  for (const id of [
+    "global.anthropic.claude-opus-5",
+    "us.anthropic.claude-sonnet-5",
+    "global.anthropic.claude-fable-5",
+    "anthropic.claude-fable-5-v1:0",
+    "global.anthropic.claude-opus-4-8",
+    "us.anthropic.claude-opus-4-5-20251101-v1:0",
+    "us.anthropic.claude-haiku-4-5-20251001-v1:0",
+    "anthropic.claude-3-5-sonnet-20241022-v2:0",
+    "us.amazon.nova-2-lite-v1:0",
+  ]) {
+    it.effect(`leaves ${id} untouched`, () =>
+      Effect.gen(function* () {
+        expect(yield* fields(bedrock(id))).toBeUndefined()
+      }),
+    )
+  }
+
+  it.effect("binds a manual thinking budget and keeps top_k", () =>
+    Effect.gen(function* () {
+      expect(
+        yield* fields(
+          bedrock("global.anthropic.claude-fable-5-1", { thinking: { type: "enabled", budgetTokens: 4_000 } }),
+          GenerationOptions.make({ maxTokens: 64_000, topK: 40 }),
+        ),
+      ).toEqual({
+        top_k: 40,
+        thinking: { type: "enabled", budget_tokens: 4_000, block_binding: binding },
+        anthropic_beta: beta,
+      })
+    }),
+  )
+
+  it.effect("does not bind disabled thinking", () =>
+    Effect.gen(function* () {
+      expect(
+        yield* fields(
+          bedrock("global.anthropic.claude-fable-5-1", {
+            body: { additionalModelRequestFields: { thinking: { type: "disabled" } } },
+          }),
+        ),
+      ).toBeUndefined()
+    }),
+  )
+
+  it.effect("honors the compatibility override in both directions", () =>
+    Effect.gen(function* () {
+      const arn = "arn:aws:bedrock:us-east-1:123456789012:application-inference-profile/abc123"
+      expect(yield* fields(bedrock(arn))).toBeUndefined()
+      expect(
+        yield* fields(LanguageModel.update(bedrock(arn), { compatibility: { supportsThinkingBlockBinding: true } })),
+      ).toEqual({ thinking: { type: "adaptive", block_binding: binding }, anthropic_beta: beta })
+      expect(
+        yield* fields(
+          LanguageModel.update(bedrock("global.anthropic.claude-fable-5-1"), {
+            compatibility: { supportsThinkingBlockBinding: false },
+          }),
+        ),
+      ).toBeUndefined()
+    }),
+  )
+})

packages/ai/test/provider/bedrock-converse.test.ts

@@ -1301,11 +1301,11 @@ describe("Bedrock Converse route", () => {
           ),
         ),
       )
-      expect(response.events.filter((event) => event.type === "reasoning-delta" && event.text === "").at(-1)).toEqual({
-        type: "reasoning-delta",
+      expect(response.events.filter((event) => event.type === "reasoning-delta")).toEqual([])
+      expect(response.events.find((event) => event.type === "reasoning-start")).toEqual({
+        type: "reasoning-start",
         id: "reasoning-0",
-        text: "",
-        providerMetadata: { bedrock: { redactedData } },
+        providerMetadata: undefined,
       })
       expect(response.events.find((event) => event.type === "reasoning-end")).toEqual({
         type: "reasoning-end",
@@ -1383,6 +1383,13 @@ describe("Bedrock Converse route", () => {
         ),
       )
 
+      expect(response.events.filter((event) => event.type === "reasoning-delta")).toEqual([])
+      expect(response.events.find((event) => event.type === "reasoning-end")).toEqual({
+        type: "reasoning-end",
+        id: "reasoning-0",
+        providerMetadata: { bedrock: { redactedData: "AQID" } },
+        text: undefined,
+      })
       expect(response.message.content).toEqual([
         { type: "reasoning", text: "", providerMetadata: { bedrock: { redactedData: "AQID" } } },
       ])

packages/ai/test/provider/meta-capabilities.test.ts

@@ -33,7 +33,12 @@ it.effect("Meta selects Messages and lowers native search alongside ordinary fun
       output_config: { effort: "low" },
       tools: [
         { type: "web_search", name: "web_search", user_location: { type: "approximate", country: "US" } },
-        { name: "lookup", description: "Lookup", input_schema: { type: "object" } },
+        {
+          name: "lookup",
+          description: "Lookup",
+          input_schema: { type: "object" },
+          cache_control: { type: "ephemeral" },
+        },
       ],
     })
     const entrypoint = yield* Effect.promise(() => import("@opencode/ai/providers/meta/messages"))

packages/ai/test/provider/mistral-chat.test.ts

@@ -303,7 +303,8 @@ describe("Mistral Chat", () => {
           fixedResponse(
             sseEvents(
               chunk({ content: [{ type: "thinking", thinking: [], marker: "empty" }] }),
-              chunk({ content: [{ type: "thinking", thinking: [{ type: "text", text: "Consider" }] }] }),
+              chunk({ content: [{ type: "thinking", thinking: [{ type: "text", text: "Con" }] }] }),
+              chunk({ content: [{ type: "thinking", thinking: [{ type: "text", text: "sider" }], closed: true }] }),
               chunk({ content: [{ type: "text", text: "Answer" }] }),
               chunk({}, "stop"),
             ),
@@ -313,6 +314,11 @@ describe("Mistral Chat", () => {
 
       expect(response.reasoning).toBe("Consider")
       expect(response.text).toBe("Answer")
+      expect(response.events.find(LLMEvent.is.reasoningStart)?.providerMetadata).toBeUndefined()
+      expect(response.events.filter(LLMEvent.is.reasoningDelta).map((event) => [event.text, event.providerMetadata])).toEqual([
+        ["Con", undefined],
+        ["sider", undefined],
+      ])
       expect(response.message.content).toEqual([
         {
           type: "reasoning",
@@ -321,8 +327,12 @@ describe("Mistral Chat", () => {
             mistral: {
               thinking: {
                 type: "thinking",
-                thinking: [{ type: "text", text: "Consider" }],
+                thinking: [
+                  { type: "text", text: "Con" },
+                  { type: "text", text: "sider" },
+                ],
                 marker: "empty",
+                closed: true,
               },
             },
           },
@@ -337,8 +347,12 @@ describe("Mistral Chat", () => {
           content: [
             {
               type: "thinking",
-              thinking: [{ type: "text", text: "Consider" }],
+              thinking: [
+                { type: "text", text: "Con" },
+                { type: "text", text: "sider" },
+              ],
               marker: "empty",
+              closed: true,
             },
             { type: "text", text: "Answer" },
           ],
@@ -357,6 +371,8 @@ describe("Mistral Chat", () => {
           ),
         ),
       )
+      expect(response.events.find(LLMEvent.is.reasoningStart)?.providerMetadata).toBeUndefined()
+      expect(response.events.filter(LLMEvent.is.reasoningDelta)).toEqual([])
       expect(response.message.content).toEqual([
         {
           type: "reasoning",

packages/ai/test/provider/openai-chat-reasoning.recorded.test.ts

@@ -89,7 +89,14 @@ for (const item of cases) {
 
           const replay = yield* compileRequest(LLM.request({ model: item.model, messages: [response.message] }))
           expect(replay.body.messages).toMatchObject([
-            { role: "assistant", content: response.text, reasoning: response.reasoning },
+            {
+              role: "assistant",
+              content:
+                item.model.route.id === "openrouter"
+                  ? [{ type: "text", text: response.text, cache_control: { type: "ephemeral" } }]
+                  : response.text,
+              reasoning: response.reasoning,
+            },
           ])
           const replayDetails =
             replay.body.messages[0]?.role === "assistant" ? replay.body.messages[0].reasoning_details : undefined

packages/ai/test/provider/openai-responses.test.ts

@@ -4996,6 +4996,42 @@ describe("OpenAI Responses route", () => {
     }),
   )
 
+  it.effect("retains the token-sharing HTTP 429 body for retry hooks", () =>
+    Effect.gen(function* () {
+      const body = JSON.stringify({ error: { code: "subscription_sharing_usage_limit_exceeded", message: "Rate limit exceeded" } })
+      const error = yield* LLMClient.generate(request).pipe(
+        Effect.provide(
+          fixedResponse(body, { status: 429, headers: { "content-type": "application/json" } }),
+        ),
+        Effect.flip,
+      )
+
+      expect(error).toMatchObject({ reason: { _tag: "RateLimit", http: { status: 429 }, body } })
+    }),
+  )
+
+  it.effect("retains the token-sharing response.failed event for retry hooks", () =>
+    Effect.gen(function* () {
+      const error = yield* LLMClient.generate(request).pipe(
+        Effect.provide(
+          fixedResponse(
+            sseEvents({
+              type: "response.failed",
+              response: {
+                id: "resp_usage_limit",
+                error: { code: "subscription_sharing_usage_limit_exceeded", message: "Rate limit exceeded" },
+              },
+            }),
+          ),
+        ),
+        Effect.flip,
+      )
+
+      expect(error).toMatchObject({ reason: { _tag: "RateLimit" } })
+      expect(error.reason.body).toContain("subscription_sharing_usage_limit_exceeded")
+    }),
+  )
+
   it.effect("surfaces response.failed code when no nested message is present", () =>
     Effect.gen(function* () {
       const error = yield* LLMClient.generate(request).pipe(

packages/ai/test/provider/openrouter.test.ts

@@ -32,6 +32,125 @@ describe("OpenRouter", () => {
     }),
   )
 
+  it.effect("places default cache breakpoints on tools, system boundaries, and the conversation tail", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: OpenRouter.configure({ apiKey: "test-key" }).model("anthropic/claude-sonnet-4.6"),
+          system: [
+            { type: "text", text: "Base agent" },
+            { type: "text", text: "Model details" },
+            { type: "text", text: "Project instructions" },
+          ],
+          tools: [
+            { name: "read", description: "Read", inputSchema: { type: "object", properties: {} } },
+            { name: "lookup", description: "Lookup", inputSchema: { type: "object", properties: {} } },
+          ],
+          prompt: "Hello",
+        }),
+      )
+
+      expect(prepared.body.tools?.map((tool) => tool.cache_control)).toEqual([undefined, { type: "ephemeral" }])
+      expect(prepared.body.messages).toMatchObject([
+        {
+          role: "system",
+          content: [
+            { text: "Base agent", cache_control: { type: "ephemeral" } },
+            { text: "Model details" },
+            { text: "Project instructions", cache_control: { type: "ephemeral" } },
+          ],
+        },
+        { role: "user", content: [{ text: "Hello", cache_control: { type: "ephemeral" } }] },
+      ])
+      expect(prepared.body.messages[0]?.content).not.toContainEqual(
+        expect.objectContaining({ text: "Model details", cache_control: expect.anything() }),
+      )
+    }),
+  )
+
+  it.effect("places default cache breakpoints on OpenRouter latest-model aliases", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: OpenRouter.configure({ apiKey: "test-key" }).model("~anthropic/claude-sonnet-latest"),
+          system: "Base agent",
+          tools: [{ name: "lookup", description: "Lookup", inputSchema: { type: "object", properties: {} } }],
+          prompt: "Hello",
+        }),
+      )
+
+      expect(prepared.body.tools?.[0]?.cache_control).toEqual({ type: "ephemeral" })
+      expect(prepared.body.messages).toMatchObject([
+        { role: "system", content: [{ text: "Base agent", cache_control: { type: "ephemeral" } }] },
+        { role: "user", content: [{ text: "Hello", cache_control: { type: "ephemeral" } }] },
+      ])
+    }),
+  )
+
+  it.effect("skips the tool breakpoint for Qwen, which caches tools with the system prompt", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: OpenRouter.configure({ apiKey: "test-key" }).model("qwen/qwen3-coder-plus"),
+          system: "Base agent",
+          tools: [{ name: "lookup", description: "Lookup", inputSchema: { type: "object", properties: {} } }],
+          prompt: "Hello",
+        }),
+      )
+
+      expect(prepared.body.tools?.[0]?.cache_control).toBeUndefined()
+      expect(prepared.body.messages).toMatchObject([
+        { role: "system", content: [{ text: "Base agent", cache_control: { type: "ephemeral" } }] },
+        { role: "user", content: [{ text: "Hello", cache_control: { type: "ephemeral" } }] },
+      ])
+    }),
+  )
+
+  it.effect("places the default Qwen conversation-tail breakpoint inside tool-result text", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: OpenRouter.configure({ apiKey: "test-key" }).model("qwen/qwen3-coder-plus"),
+          messages: [
+            Message.user("Call the tool"),
+            Message.assistant([{ type: "tool-call", id: "call_1", name: "lookup", input: {} }]),
+            Message.tool({ id: "call_1", name: "lookup", result: "Done" }),
+          ],
+        }),
+      )
+
+      expect(prepared.body.messages.at(-1)).toMatchObject({
+        role: "tool",
+        tool_call_id: "call_1",
+        content: [{ type: "text", text: '"Done"', cache_control: { type: "ephemeral" } }],
+      })
+    }),
+  )
+
+  it.effect("sends no default breakpoints to upstreams that cache without them", () =>
+    Effect.gen(function* () {
+      const openrouter = OpenRouter.configure({ apiKey: "test-key" })
+      const bodies = yield* Effect.forEach(["google/gemini-2.5-flash", "openai/gpt-5-mini"], (id) =>
+        compileRequest(
+          LLM.request({
+            model: openrouter.model(id),
+            system: "Base agent",
+            tools: [{ name: "lookup", description: "Lookup", inputSchema: { type: "object", properties: {} } }],
+            prompt: "Hello",
+          }),
+        ).pipe(Effect.map((prepared) => prepared.body)),
+      )
+
+      bodies.forEach((body) => {
+        expect(body.tools?.[0]?.cache_control).toBeUndefined()
+        expect(body.messages).toMatchObject([
+          { role: "system", content: "Base agent" },
+          { role: "user", content: "Hello" },
+        ])
+      })
+    }),
+  )
+
   it.effect("lowers the native cache policy to OpenRouter cache controls", () =>
     Effect.gen(function* () {
       const prepared = yield* compileRequest(
@@ -74,6 +193,8 @@ describe("OpenRouter", () => {
           cache: "none",
           messages: [
             Message.user("Call the tool"),
+            Message.assistant("Unmarked reply"),
+            Message.user("Call again"),
             Message.assistant([
               { type: "text", text: "Calling", cache: new CacheHint({ type: "ephemeral" }) },
               { type: "tool-call", id: "call_1", name: "lookup", input: {} },
@@ -90,8 +211,17 @@ describe("OpenRouter", () => {
 
       expect(prepared.body.messages).toMatchObject([
         { role: "user", content: "Call the tool" },
-        { role: "assistant", content: "Calling", cache_control: { type: "ephemeral" } },
-        { role: "tool", content: '"Done"', cache_control: { type: "ephemeral", ttl: "1h" } },
+        { role: "assistant", content: "Unmarked reply" },
+        { role: "user", content: "Call again" },
+        {
+          role: "assistant",
+          content: [{ type: "text", text: "Calling", cache_control: { type: "ephemeral" } }],
+          tool_calls: [{ id: "call_1", type: "function", function: { name: "lookup", arguments: "{}" } }],
+        },
+        {
+          role: "tool",
+          content: [{ type: "text", text: '"Done"', cache_control: { type: "ephemeral", ttl: "1h" } }],
+        },
       ])
     }),
   )
@@ -118,7 +248,7 @@ describe("OpenRouter", () => {
     }),
   )
 
-  it.effect("preserves cache policy hints on reasoning-only assistant messages", () =>
+  it.effect("does not emit text cache markers on reasoning-only assistant messages", () =>
     Effect.gen(function* () {
       const prepared = yield* compileRequest(
         LLM.request({
@@ -130,8 +260,38 @@ describe("OpenRouter", () => {
 
       expect(prepared.body.messages).toMatchObject([
         { role: "user", content: "Think" },
-        { role: "assistant", cache_control: { type: "ephemeral" } },
+        { role: "assistant", content: "" },
       ])
+      expect(prepared.body.messages[1]).not.toHaveProperty("cache_control")
+    }),
+  )
+
+  it.effect("counts wrapped system-update markers once so all four default breakpoints survive", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: OpenRouter.configure({ apiKey: "test-key" }).model("anthropic/claude-sonnet-4.6"),
+          system: [
+            { type: "text", text: "Base agent" },
+            { type: "text", text: "Project instructions" },
+          ],
+          tools: [{ name: "lookup", description: "Lookup", inputSchema: { type: "object", properties: {} } }],
+          messages: [Message.user("Start"), Message.system("Updated instructions")],
+        }),
+      )
+
+      expect(prepared.body.tools?.[0]?.cache_control).toEqual({ type: "ephemeral" })
+      expect(prepared.body.messages.at(-1)).toMatchObject({
+        role: "user",
+        content: [
+          { type: "text", text: "Start" },
+          {
+            type: "text",
+            text: "<system-update>\nUpdated instructions\n</system-update>",
+            cache_control: { type: "ephemeral" },
+          },
+        ],
+      })
     }),
   )
 

packages/app/component-tests/browser-pane.fixture.tsx

@@ -4,9 +4,9 @@ import { For, Show } from "solid-js"
 import { createStore } from "solid-js/store"
 import { Portal, render } from "solid-js/web"
 import { LanguageProvider, UiI18nBridge } from "../src/runtime/i18n/language"
-import type { BrowserPaneLayout, BrowserPaneRegistration } from "../src/runtime/platform/browser-pane"
+import type { BrowserPaneEvent, BrowserPaneLayout, BrowserPaneRegistration } from "../src/runtime/platform/browser-pane"
 import type { createSessionBrowser } from "../src/session/browser/model"
-import { SessionBrowserPane } from "../src/session/browser/pane"
+import { SessionBrowserPane, type SessionBrowserComment } from "../src/session/browser/pane"
 
 export function mountBrowserPane() {
   const host = document.createElement("main")
@@ -30,9 +30,15 @@ export function mountBrowserPane() {
       covered: false,
       captures: 0,
       holdCapture: false,
+      picker: {} as Record<string, boolean | undefined>,
+      highlights: [] as string[],
+      comments: [] as SessionBrowserComment[],
     })
     // Each capture waits until the fixture releases it, so a spec can observe the pending state.
     const held: (() => void)[] = []
+    const inspectors = new Set<(event: Extract<BrowserPaneEvent, { type: "inspect" }>) => void>()
+    const emitInspect = (event: Extract<BrowserPaneEvent, { type: "inspect" }>) =>
+      inspectors.forEach((listener) => listener(event))
     const tabs = ["Alpha", "Beta"].map((name) => ({
       id: Browser.TabID.make(`tab_${name === "Alpha" ? "11111111" : "22222222"}-1111-1111-1111-111111111111`),
       title: name,
@@ -60,6 +66,12 @@ export function mountBrowserPane() {
             }
             return canvas.convertToBlob()
           },
+          // The desktop confirms each picker change, as the page does once inspect mode is armed.
+          inspect: (tabID, enabled) => {
+            setStore("picker", tab.title, enabled)
+            emitInspect({ type: "inspect", tabID, active: enabled })
+          },
+          highlight: (_tabID, ref) => setStore("highlights", (items) => [...items, ref ?? "clear"]),
           close: () => undefined,
         },
       ]),
@@ -97,7 +109,26 @@ export function mountBrowserPane() {
         }
         if (command.type === "stop") setStore("loading", false)
       },
+      onInspect: (listener) => {
+        inspectors.add(listener)
+        return () => inspectors.delete(listener)
+      },
+      reveal: () => undefined,
     }
+    const pick = () =>
+      emitInspect({
+        type: "inspect",
+        tabID: browser.active().id,
+        active: false,
+        element: {
+          ref: Browser.Ref.make("e7"),
+          selector: "main > button.primary",
+          label: "button.primary",
+          role: "button",
+          name: "Save changes",
+          rect: { x: 48, y: 40, width: 160, height: 36 },
+        },
+      })
     return (
       <>
         <h1 style={{ "font-size": "24px", "margin-bottom": "16px" }}>Browser pane lifecycle</h1>
@@ -137,13 +168,30 @@ export function mountBrowserPane() {
           <button onClick={() => setStore("holdCapture", true)}>Hold capture</button>
           <button onClick={() => held.splice(0).forEach((resolve) => resolve())}>Release capture</button>
           <button onClick={() => setStore("covered", (covered) => !covered)}>Toggle popover</button>
+          <button onClick={pick}>Pick element</button>
         </nav>
         <p>Captures: {store.captures}</p>
+        <p>Picker: {store.picker[store.session] ? "on" : "off"}</p>
+        <p>Highlights: {store.highlights.join(",")}</p>
         <div style={{ position: "relative", width: "640px", height: "360px", border: "1px solid #555" }}>
           <Show when={store.mounted}>
-            <SessionBrowserPane browser={browser} visible={store.visible} />
+            <SessionBrowserPane
+              browser={browser}
+              visible={store.visible}
+              onComment={(comment) => setStore("comments", (items) => [...items, comment])}
+            />
           </Show>
         </div>
+        <ul data-testid="fixture-comments">
+          <For each={store.comments}>
+            {(comment) => (
+              <li>
+                {comment.element.label} {comment.element.ref ? `@${comment.element.ref}` : "(no ref)"}:{" "}
+                {comment.comment}
+              </li>
+            )}
+          </For>
+        </ul>
         <Show when={store.covered}>
           {/* Floating content portals into <body> like a menu or hover card over the page. */}
           <Portal mount={document.body}>

packages/app/component-tests/browser-pane.spec.ts

@@ -79,6 +79,81 @@ story("keeps a still of the page under floating content that covers it", async (
   await expect(root.getByText("Captures: 1", { exact: true })).toBeVisible()
 })
 
+story("comments on a picked element over a still of the page", async ({ page }, testInfo) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  const picker = root.getByRole("button", { name: "Select an element to comment on", exact: true })
+  await picker.click()
+  await expect(picker).toHaveAttribute("aria-pressed", "true")
+  await expect(root.getByText("Picker: on", { exact: true })).toBeVisible()
+
+  await root.getByRole("button", { name: "Pick element", exact: true }).click()
+  await expect(picker).toHaveAttribute("aria-pressed", "false")
+  const editor = root.locator('[data-slot="browser-comment-editor"] textarea')
+  await expect(editor).toBeFocused()
+  await expect(root.locator('[data-slot="browser-comment-editor"]')).toContainText("button.primary")
+  // The native page hides behind its still so the editor can float over it.
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "false")
+  await expect(root.locator("#browser-panel img")).toBeVisible()
+  await page.screenshot({ path: testInfo.outputPath("comment.png") })
+
+  await editor.fill("Make this the primary colour")
+  await editor.press("Enter")
+  await expect(root.getByTestId("fixture-comments")).toHaveText("button.primary @e7: Make this the primary colour")
+  await expect(root.locator('[data-component="browser-comment"]')).toHaveCount(0)
+  await expect(root.getByText("Highlights: clear", { exact: true })).toBeVisible()
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+})
+
+story("cancels the picker and a comment with Escape", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  const picker = root.getByRole("button", { name: "Select an element to comment on", exact: true })
+  await picker.click()
+  await expect(picker).toHaveAttribute("aria-pressed", "true")
+  await page.keyboard.press("Escape")
+  await expect(picker).toHaveAttribute("aria-pressed", "false")
+  await expect(root.getByText("Picker: off", { exact: true })).toBeVisible()
+
+  await picker.click()
+  await root.getByRole("button", { name: "Pick element", exact: true }).click()
+  const editor = root.locator('[data-slot="browser-comment-editor"] textarea')
+  await expect(editor).toBeFocused()
+  await editor.press("Escape")
+  await expect(root.locator('[data-component="browser-comment"]')).toHaveCount(0)
+  await expect(root.getByTestId("fixture-comments")).toHaveText("")
+  await expect(root.getByTestId("native-Alpha")).toHaveAttribute("data-visible", "true")
+})
+
+story("keeps a comment draft but drops its ref when the page navigates", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  await root.getByRole("button", { name: "Select an element to comment on", exact: true }).click()
+  await root.getByRole("button", { name: "Pick element", exact: true }).click()
+  const editor = root.locator('[data-slot="browser-comment-editor"] textarea')
+  await editor.fill("Still misaligned after the reload")
+  await root.getByRole("button", { name: "Load current page", exact: true }).click()
+  await expect(editor).toHaveValue("Still misaligned after the reload")
+  await editor.press("Enter")
+  await expect(root.getByTestId("fixture-comments")).toHaveText(
+    "button.primary (no ref): Still misaligned after the reload",
+  )
+})
+
+story("keeps the comment editor and its actions inside the page", async ({ page }) => {
+  const root = page.getByTestId("browser-pane-fixture")
+  await root.getByRole("button", { name: "Select an element to comment on", exact: true }).click()
+  await root.getByRole("button", { name: "Pick element", exact: true }).click()
+  const editor = root.locator('[data-slot="browser-comment-editor"]')
+  // As if the user dragged the textarea's resize handle far past the page.
+  await editor.locator("textarea").evaluate((element) => {
+    element.style.height = "900px"
+  })
+  const surface = await root.locator('[data-component="browser-comment"]').boundingBox()
+  const box = await editor.boundingBox()
+  expect(surface && box && box.y + box.height <= surface.y + surface.height).toBe(true)
+  const submit = editor.getByRole("button", { name: "Comment", exact: true })
+  await submit.scrollIntoViewIfNeeded()
+  await expect(submit).toBeInViewport()
+})
+
 story("shows the empty state over a blank native page and restores navigation", async ({ page }) => {
   const root = page.getByTestId("browser-pane-fixture")
   await root.getByRole("button", { name: "Blank page", exact: true }).click()

packages/app/e2e/regression/patch-sticky-header.spec.ts

@@ -186,11 +186,17 @@ for (const scenario of scenarios) {
                 const toolTitle = element
                   .closest('[data-component="edit-tool"]')
                   ?.querySelector('[data-slot="collapsible-trigger"][data-locked]')
-                const top = viewport.getBoundingClientRect().top + (title?.getBoundingClientRect().height ?? 0)
+                // Grouped file headers stack below the stuck Used header.
+                const group = element
+                  .closest('[data-component="collapsed-tool-group"]')
+                  ?.querySelector(':scope > [data-component="collapsible"] > [data-slot="collapsible-trigger"]')
+                const sessionTop = viewport.getBoundingClientRect().top + (title?.getBoundingClientRect().height ?? 0)
+                const top = sessionTop + (group?.getBoundingClientRect().height ?? 0)
                 const rect = element.getBoundingClientRect()
                 const trigger = element.querySelector("button")!
                 return {
                   gap: Math.abs(rect.top - top - (toolTitle?.getBoundingClientRect().height ?? 0)),
+                  groupGap: group ? Math.abs(group.getBoundingClientRect().top - sessionTop) : 0,
                   titleGap: toolTitle ? Math.abs(toolTitle.getBoundingClientRect().top - top) : 0,
                   clickable: trigger.contains(
                     document.elementFromPoint(rect.left + rect.width / 2, rect.top + rect.height / 2),
@@ -198,7 +204,7 @@ for (const scenario of scenarios) {
                 }
               }),
             )
-            .toEqual({ gap: 0, titleGap: 0, clickable: true })
+            .toEqual({ gap: 0, groupGap: 0, titleGap: 0, clickable: true })
           await page.screenshot({ path: info.outputPath(`${file}.png`) })
         }
 

packages/app/e2e/regression/session-id-links.spec.ts

@@ -0,0 +1,43 @@
+import { expect, test } from "@playwright/test"
+import { base64Encode } from "@opencode/util/encode"
+import {
+  assistantMessage,
+  session,
+  setupTimeline,
+  textPart,
+  userMessage,
+} from "../performance/timeline-stability/fixture"
+
+const target = "ses_0123456789abcdefghijklmnop"
+const missing = "ses_abcdefghijklmnopqrstuvwxyz"
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+
+test("opens a verified session from agent prose or inline code with the keyboard", async ({ page }) => {
+  await setupTimeline(page, {
+    sessions: [session(), session({ id: target, title: "Linked session" })],
+    messages: [
+      userMessage(),
+      assistantMessage([textPart("prt_session_links", `Visit ${target} or \`${target}\` to see the result.`)]),
+    ],
+  })
+  const markdown = page.locator('[data-component="markdown"]').filter({ hasText: `Visit ${target}` })
+  await expect(markdown).toHaveAttribute("data-markdown-ready", "")
+  await expect(markdown.getByRole("button", { name: target })).toHaveCount(2)
+  await markdown
+    .getByRole("button", { name: target })
+    .filter({ has: page.locator("code") })
+    .press("Enter")
+  await expect(page).toHaveURL(`/server/${base64Encode(server)}/session/${target}`)
+  await expect(page.locator(`[data-titlebar-tab-link][href$="/session/${target}"]`)).toContainText("Linked session")
+})
+
+test("does not navigate to an ID that is absent from the current server", async ({ page }) => {
+  await setupTimeline(page, {
+    messages: [userMessage(), assistantMessage([textPart("prt_session_missing", `See ${missing}.`)])],
+  })
+  const markdown = page.locator('[data-component="markdown"]').filter({ hasText: `See ${missing}.` })
+  await expect(markdown).toHaveAttribute("data-markdown-ready", "")
+  await markdown.getByRole("button", { name: missing }).click()
+  await expect(page.getByText("This session cannot be found")).toBeVisible()
+  await expect(page).toHaveURL(/\/session\/ses_timeline_stability$/)
+})

packages/app/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@opencode/app",
-  "version": "2.0.18",
+  "version": "2.0.20",
   "description": "",
   "type": "module",
   "exports": {

packages/app/src/composer/adapter.ts

@@ -30,6 +30,10 @@ export type ComposerControls = {
       opened: () => boolean
       open: () => void
     }
+    /** Present in sessions with a desktop browser pane. */
+    browser?: {
+      reveal: (tabID: string, ref?: string) => void
+    }
   }
 }
 

packages/app/src/composer/comment-note.test.ts

@@ -0,0 +1,41 @@
+import { describe, expect, test } from "bun:test"
+import { commentContextItem, formatBrowserCommentNote, readPromptPresentation } from "./comment-note"
+
+const browser = {
+  type: "browser" as const,
+  tabID: "tab_00000000-0000-4000-8000-000000000000",
+  url: "http://localhost:5173/",
+  element: { ref: "e42", selector: "#save", label: "button#save" },
+  comment: "Rename this",
+}
+
+describe("browser element comments", () => {
+  test("read from message metadata beside file comments and skip malformed entries", () => {
+    const value = readPromptPresentation({
+      displayText: "hi",
+      comments: [browser, { ...browser, element: { label: "button" } }, { path: "src/app.ts", comment: "Keep" }],
+    })
+    expect(value?.comments).toEqual([browser, { path: "src/app.ts", comment: "Keep" }])
+  })
+
+  test("explain a selector that crosses into a shadow root", () => {
+    expect(
+      formatBrowserCommentNote({ ...browser, element: { ...browser.element, selector: "#card >>> div > button" } }),
+    ).toContain('selector "#card >>> div > button" (">>>" enters a shadow root)')
+    expect(formatBrowserCommentNote(browser)).not.toContain("shadow root")
+  })
+
+  test("leave out a selector that was too long to keep", () => {
+    expect(formatBrowserCommentNote({ ...browser, element: { ...browser.element, selector: "" } })).toBe(
+      'The user made the following comment regarding the "button#save" element in browser tab tab_00000000-0000-4000-8000-000000000000 at http://localhost:5173/ (browser ref @e42, usable as ref in any browser tool including browser.evaluate until the page navigates): Rename this',
+    )
+  })
+
+  test("return to the composer without their element ref", () => {
+    expect(commentContextItem(browser)).toEqual({
+      ...browser,
+      element: { selector: "#save", label: "button#save" },
+      commentID: expect.any(String),
+    })
+  })
+})

packages/app/src/composer/comment-note.ts

@@ -1,12 +1,18 @@
+import { Option, Schema } from "effect"
 import type { FileSelection } from "@/workspaces/files/model"
+import { BrowserComment, durableBrowserElement, type ContextItem } from "./schema"
 
-export type PromptComment = {
+export type PromptFileComment = {
+  type?: "file"
   path: string
   selection?: FileSelection
   comment: string
   preview?: string
   origin?: "review" | "file"
 }
+export type PromptComment = PromptFileComment | BrowserComment
+
+const decodeBrowserComment = Schema.decodeUnknownOption(BrowserComment)
 
 /** An attachment the model receives as a path on the server rather than inline bytes. */
 export type PromptAttachmentReference = {
@@ -30,7 +36,7 @@ function selection(selection: unknown) {
   } satisfies FileSelection
 }
 
-export function createCommentMetadata(input: PromptComment) {
+export function createCommentMetadata(input: PromptFileComment) {
   return {
     opencodeComment: {
       path: input.path,
@@ -78,6 +84,7 @@ export function readPromptPresentation(value: unknown) {
     }),
     comments: comments.flatMap((item): PromptComment[] => {
       if (!item || typeof item !== "object") return []
+      if ((item as { type?: unknown }).type === "browser") return Option.toArray(decodeBrowserComment(item))
       const path = (item as { path?: unknown }).path
       const comment = (item as { comment?: unknown }).comment
       if (typeof path !== "string" || typeof comment !== "string") return []
@@ -100,6 +107,39 @@ export function formatAttachmentReference(input: PromptAttachmentReference) {
   return `Attached file: \`${input.path}\``
 }
 
+export function formatBrowserCommentNote(input: BrowserComment) {
+  const element = input.element
+  // Page-provided strings are quoted so they read as data, not as part of the user's request.
+  const details = [
+    element.role ? `role ${element.role}` : undefined,
+    element.name ? `accessible name ${JSON.stringify(element.name)}` : undefined,
+    element.text && element.text !== element.name ? `text ${JSON.stringify(element.text.slice(0, 80))}` : undefined,
+    // A selector too long to keep is empty rather than cut into invalid syntax.
+    element.selector
+      ? `selector ${JSON.stringify(element.selector)}${element.selector.includes(" >>> ") ? ' (">>>" enters a shadow root)' : ""}`
+      : undefined,
+    element.ref
+      ? `browser ref @${element.ref}, usable as ref in any browser tool including browser.evaluate until the page navigates`
+      : undefined,
+  ].filter((detail) => detail !== undefined)
+  return `The user made the following comment regarding the ${JSON.stringify(element.label)} element in browser tab ${input.tabID} at ${input.url}${details.length ? ` (${details.join("; ")})` : ""}: ${input.comment}`
+}
+
+/** Restores a sent comment to the composer, for example after a revert or fork. */
+export function commentContextItem(comment: PromptComment): ContextItem {
+  // The message may predate the desktop process, so its element ref can no longer be trusted.
+  if (comment.type === "browser")
+    return { ...comment, element: durableBrowserElement(comment.element), commentID: crypto.randomUUID() }
+  return {
+    type: "file",
+    path: comment.path,
+    selection: comment.selection,
+    comment: comment.comment,
+    preview: comment.preview,
+    commentOrigin: comment.origin,
+  }
+}
+
 export function formatCommentNote(input: { path: string; selection?: FileSelection; comment: string }) {
   const start = input.selection ? Math.min(input.selection.startLine, input.selection.endLine) : undefined
   const end = input.selection ? Math.max(input.selection.startLine, input.selection.endLine) : undefined

packages/app/src/composer/composer.stories.tsx

@@ -279,6 +279,39 @@ export const MixedAttachments = {
   ),
 }
 
+export const BrowserElementComment = {
+  render: () => (
+    <ComposerStory
+      prompt={text("Tidy up the settings page")}
+      comments={[
+        {
+          type: "browser",
+          key: "browser:tab_story:c=save",
+          tabID: "tab_00000000-0000-4000-8000-000000000000",
+          url: "http://localhost:5173/settings",
+          title: "Settings",
+          element: {
+            ref: "e42",
+            selector: "#settings > form > button.btn.primary",
+            label: "button.btn.primary",
+            role: "button",
+            name: "Save changes",
+          },
+          comment: "Match the secondary button height",
+          commentID: "save",
+        },
+        {
+          type: "file",
+          key: "comment:src/app.tsx",
+          path: "src/app.tsx",
+          selection: { startLine: 12, startChar: 0, endLine: 14, endChar: 0 },
+          comment: "Keep the normal flow flat",
+        },
+      ]}
+    />
+  ),
+}
+
 export const ModelAndVariant = { render: () => <ComposerStory prompt={text("Compare both variants")} /> }
 
 export const SlashSuggestions = { render: () => <ComposerStory suggestions="command" /> }

packages/app/src/composer/editor/editor.tsx

@@ -533,8 +533,11 @@ export function ComposerAttachments(props: {
                 >
                   <CommentCard
                     comment={comment.comment ?? ""}
-                    path={comment.path}
-                    selection={comment.selection}
+                    target={
+                      comment.type === "browser"
+                        ? { type: "browser", element: comment.element.label }
+                        : { type: "file", path: comment.path, selection: comment.selection }
+                    }
                     active={comment.key === props.activeCommentID}
                     onClick={() => props.onCommentClick?.(comment)}
                   />

packages/app/src/composer/model.ts

@@ -98,7 +98,7 @@ export function createComposerModel(adapter: ComposerAdapter, options?: { queue?
     const byID = new Map(comments.all().map((item) => [`${item.file}\n${item.id}`, item] as const))
     return prompt.context.items().flatMap((item) => {
       const comment = item.comment?.trim()
-      if (!comment) return []
+      if (!comment || item.type !== "file") return []
       const selection = item.commentID ? byID.get(`${item.path}\n${item.commentID}`)?.selection : undefined
       const nextSelection =
         selection ??
@@ -129,9 +129,11 @@ export function createComposerModel(adapter: ComposerAdapter, options?: { queue?
         time: item.time,
       })),
     )
-    prompt.context.replaceComments(
-      items.map((item) => ({
-        type: "file",
+    // History records file comments only; browser comments stay with the draft while it is browsed.
+    prompt.context.replaceComments([
+      ...prompt.context.items().filter((item) => item.type === "browser"),
+      ...items.map((item) => ({
+        type: "file" as const,
         path: item.path,
         selection: selectionFromLines(item.selection),
         comment: item.comment,
@@ -139,7 +141,7 @@ export function createComposerModel(adapter: ComposerAdapter, options?: { queue?
         commentOrigin: item.origin,
         preview: item.preview,
       })),
-    )
+    ])
   }
 
   const referenceDescription = (reference: ReferenceInfo) =>
@@ -298,7 +300,7 @@ export function createComposerModel(adapter: ComposerAdapter, options?: { queue?
         mention: { type: "file", path, content: `@${path}`, start: 0, end: 0 },
       })),
     onContextRemove(item) {
-      if (item?.commentID) comments.remove(item.path, item.commentID)
+      if (item.type === "file" && item.commentID) comments.remove(item.path, item.commentID)
     },
     openAttachment: (attachment) => {
       if (attachment.type !== "image") return
@@ -308,6 +310,10 @@ export function createComposerModel(adapter: ComposerAdapter, options?: { queue?
     },
     openContext(key) {
       const item = controller.contextItem(key)
+      if (item?.type === "browser") {
+        adapter.controls().session.browser?.reveal(item.tabID, item.element.ref)
+        return
+      }
       if (item) openComment(item, adapter.controls(), layout, files, comments)
     },
     onEditor(element) {

packages/app/src/composer/persistence.tsx

@@ -28,6 +28,7 @@ export {
 } from "./state"
 export type {
   AgentPart,
+  BrowserContextItem,
   ContentPart,
   ContextItem,
   FileAttachmentPart,
@@ -160,7 +161,7 @@ export const { use: useComposerState, provider: ComposerPersistenceProvider } =
         removeComment: (path: string, commentID: string) => session().context.removeComment(path, commentID),
         updateComment: (path: string, commentID: string, next: Partial<FileContextItem> & { comment?: string }) =>
           session().context.updateComment(path, commentID, next),
-        replaceComments: (items: FileContextItem[]) => session().context.replaceComments(items),
+        replaceComments: (items: ContextItem[]) => session().context.replaceComments(items),
       },
       set: (prompt: Prompt, cursorPosition?: number, scope?: PromptScope) => pick(scope).set(prompt, cursorPosition),
       reset: (scope?: PromptScope) => pick(scope).reset(),

packages/app/src/composer/request.test.ts

@@ -144,6 +144,57 @@ describe("buildPromptRequest", () => {
     expect(result.files.some((file) => file.uri === "file:///repo/src/shared.ts")).toBe(true)
   })
 
+  test("sends a browser element comment as a note the browser tools can act on", () => {
+    const result = buildPromptRequest({
+      prompt: [{ type: "text", content: "tidy up", start: 0, end: 7 }],
+      context: [
+        {
+          key: "browser:tab:c=1",
+          type: "browser",
+          tabID: "tab_00000000-0000-4000-8000-000000000000",
+          url: "http://localhost:5173/settings",
+          title: "Settings",
+          element: {
+            ref: "e42",
+            selector: "#settings > button.primary",
+            label: "button.primary",
+            role: "button",
+            name: "Save",
+            text: "Save",
+          },
+          comment: "Match @src/button.css",
+          commentID: "1",
+        },
+      ],
+      images: [],
+      text: "tidy up",
+      sessionDirectory: "/repo",
+    })
+
+    expect(result.text).toBe(
+      'tidy up\nThe user made the following comment regarding the "button.primary" element in browser tab tab_00000000-0000-4000-8000-000000000000 at http://localhost:5173/settings (role button; accessible name "Save"; selector "#settings > button.primary"; browser ref @e42, usable as ref in any browser tool including browser.evaluate until the page navigates): Match @src/button.css',
+    )
+    expect(result.comments).toEqual([
+      {
+        type: "browser",
+        tabID: "tab_00000000-0000-4000-8000-000000000000",
+        url: "http://localhost:5173/settings",
+        title: "Settings",
+        element: {
+          ref: "e42",
+          selector: "#settings > button.primary",
+          label: "button.primary",
+          role: "button",
+          name: "Save",
+          text: "Save",
+        },
+        comment: "Match @src/button.css",
+      },
+    ])
+    // A browser comment has no file of its own; only files it mentions are attached.
+    expect(result.files).toEqual([{ uri: "file:///repo/src/button.css", mime: "text/plain", name: "button.css" }])
+  })
+
   test("handles Windows paths correctly (simulated on macOS)", () => {
     const prompt: Prompt = [{ type: "file", path: "src\\foo.ts", content: "@src\\foo.ts", start: 0, end: 11 }]
 

packages/app/src/composer/request.ts

@@ -1,9 +1,18 @@
 import { getFilename } from "@opencode/util/path"
 import type { FileSelection } from "@/workspaces/files/model"
 import { encodeFilePath } from "@/workspaces/files/path"
-import type { AgentPart, FileAttachmentPart, ImageAttachmentPart, PathAttachmentPart, Prompt, SkillPart } from "@/composer/state"
+import type {
+  AgentPart,
+  ContextItem,
+  FileAttachmentPart,
+  ImageAttachmentPart,
+  PathAttachmentPart,
+  Prompt,
+  SkillPart,
+} from "@/composer/state"
 import {
   formatAttachmentReference,
+  formatBrowserCommentNote,
   formatCommentNote,
   type PromptAttachmentReference,
   type PromptComment,
@@ -20,20 +29,9 @@ type PromptRequest = {
   attachments: PromptAttachmentReference[]
 }
 
-type ContextFile = {
-  key: string
-  type: "file"
-  path: string
-  selection?: FileSelection
-  comment?: string
-  commentID?: string
-  commentOrigin?: "review" | "file"
-  preview?: string
-}
-
 type BuildPromptRequestInput = {
   prompt: Prompt
-  context: ContextFile[]
+  context: (ContextItem & { key: string })[]
   images: (Omit<ImageAttachmentPart, "blob"> & { dataUrl: string })[]
   text: string
   sessionDirectory: string
@@ -87,7 +85,27 @@ export function buildPromptRequest(input: BuildPromptRequestInput): PromptReques
 
   const used = new Set(files.map((file) => file.uri))
   const comments: PromptComment[] = []
+  const mentioned = (comment: string) =>
+    parseCommentMentions(comment).flatMap((path) => {
+      const uri = `file://${encodeFilePath(absolute(input.sessionDirectory, path))}`
+      if (used.has(uri)) return []
+      used.add(uri)
+      return [{ uri, mime: "text/plain", name: getFilename(path) }]
+    })
   const context = input.context.flatMap((item) => {
+    if (item.type === "browser") {
+      const comment = item.comment.trim()
+      if (!comment) return []
+      comments.push({
+        type: "browser",
+        tabID: item.tabID,
+        url: item.url,
+        ...(item.title ? { title: item.title } : {}),
+        element: { ...item.element },
+        comment,
+      })
+      return mentioned(comment)
+    }
     const path = absolute(input.sessionDirectory, item.path)
     const uri = `file://${encodeFilePath(path)}${fileQuery(item.selection)}`
     const comment = item.comment?.trim()
@@ -104,13 +122,7 @@ export function buildPromptRequest(input: BuildPromptRequestInput): PromptReques
       preview: item.preview,
       origin: item.commentOrigin,
     })
-    const mentions = parseCommentMentions(comment).flatMap((path) => {
-      const uri = `file://${encodeFilePath(absolute(input.sessionDirectory, path))}`
-      if (used.has(uri)) return []
-      used.add(uri)
-      return [{ uri, mime: "text/plain", name: getFilename(path) }]
-    })
-    return [file, ...mentions]
+    return [file, ...mentioned(comment)]
   })
 
   const inline = input.images.map((attachment) => ({
@@ -127,7 +139,9 @@ export function buildPromptRequest(input: BuildPromptRequestInput): PromptReques
     text: [
       ...(input.text.trim() ? [input.text] : []),
       ...attachments.map(formatAttachmentReference),
-      ...comments.map(formatCommentNote),
+      ...comments.map((comment) =>
+        comment.type === "browser" ? formatBrowserCommentNote(comment) : formatCommentNote(comment),
+      ),
     ].join("\n"),
     displayText: input.text,
     files: [...files, ...context, ...inline],

packages/app/src/composer/schema.test.ts

@@ -53,6 +53,28 @@ describe("composer persistence schemas", () => {
     expect(decode({}).prompt).toEqual(DEFAULT_PROMPT)
   })
 
+  test("restores browser element comments without the process-bound element ref", () => {
+    const decode = Schema.decodeUnknownSync(
+      Persistence.withInitial(ComposerStore, { prompt: DEFAULT_PROMPT, context: { items: [] } }),
+    )
+    const browser = {
+      type: "browser" as const,
+      tabID: "tab_00000000-0000-4000-8000-000000000000",
+      url: "http://localhost:5173/",
+      element: { ref: "e42", selector: "#save", label: "button#save", role: 42 },
+      comment: "Rename this",
+      commentID: "note",
+    }
+    const value = decode({ context: { items: [browser, { ...browser, url: null }] } })
+    expect(value.context.items).toEqual([
+      {
+        ...browser,
+        element: { selector: "#save", label: "button#save" },
+        key: "browser:tab_00000000-0000-4000-8000-000000000000:c=note",
+      },
+    ])
+  })
+
   test("drops invalid parts without losing valid mentions or optional field recovery", () => {
     const value = Schema.decodeUnknownSync(
       Persistence.withInitial(ComposerStore, { prompt: DEFAULT_PROMPT, context: { items: [] } }),

packages/app/src/composer/schema.ts

@@ -134,9 +134,49 @@ export const FileContextItem = Persistence.struct({
   preview: Persistence.optional(Schema.String),
 })
 export type FileContextItem = typeof FileContextItem.Type
-export type ContextItem = FileContextItem
+
+/** An element the user picked in a desktop browser tab. The ref is valid until the page navigates. */
+export const BrowserElement = Persistence.struct({
+  ref: Persistence.optional(Schema.String),
+  selector: Schema.String,
+  label: Schema.String,
+  role: Persistence.optional(Schema.String),
+  name: Persistence.optional(Schema.String),
+  text: Persistence.optional(Schema.String),
+})
+export type BrowserElement = typeof BrowserElement.Type
+
+/**
+ * A ref names an element only inside the desktop process that picked it; a later process can hand
+ * the same ref to another element. Anything that may outlive the pick keeps the description only.
+ */
+export function durableBrowserElement(element: BrowserElement): BrowserElement {
+  return {
+    selector: element.selector,
+    label: element.label,
+    ...(element.role ? { role: element.role } : {}),
+    ...(element.name ? { name: element.name } : {}),
+    ...(element.text ? { text: element.text } : {}),
+  }
+}
+
+const BrowserCommentFields = {
+  type: Schema.Literal("browser"),
+  tabID: Schema.String,
+  url: Schema.String,
+  title: Persistence.optional(Schema.String),
+  element: BrowserElement,
+  comment: Schema.String,
+}
+/** A comment on a browser element as sent in message metadata. */
+export const BrowserComment = Persistence.struct(BrowserCommentFields)
+export type BrowserComment = typeof BrowserComment.Type
+export const BrowserContextItem = Persistence.struct({ ...BrowserCommentFields, commentID: Schema.String })
+export type BrowserContextItem = typeof BrowserContextItem.Type
+export type ContextItem = FileContextItem | BrowserContextItem
 
 export function contextItemKey(item: ContextItem) {
+  if (item.type === "browser") return `browser:${item.tabID}:c=${item.commentID}`
   const key = `${item.type}:${item.path}:${item.selection?.startLine}:${item.selection?.endLine}`
   if (item.commentID) return `${key}:c=${item.commentID}`
   const comment = item.comment?.trim()
@@ -145,12 +185,27 @@ export function contextItemKey(item: ContextItem) {
   return `${key}:c=${digest.slice(0, 8)}`
 }
 
-const ContextEntry = Schema.Struct({ ...FileContextItem.fields, key: Persistence.optional(Schema.String) }).pipe(
+const FileContextEntry = Schema.Struct({ ...FileContextItem.fields, key: Persistence.optional(Schema.String) }).pipe(
   Schema.decodeTo(Persistence.struct({ ...FileContextItem.fields, key: Schema.String }).pipe(Schema.toType), {
     decode: SchemaGetter.transform((item) => ({ ...item, key: contextItemKey(item) })),
     encode: SchemaGetter.transform((item) => item),
   }),
 )
+const BrowserContextEntry = Schema.Struct({
+  ...BrowserContextItem.fields,
+  key: Persistence.optional(Schema.String),
+}).pipe(
+  Schema.decodeTo(Persistence.struct({ ...BrowserContextItem.fields, key: Schema.String }).pipe(Schema.toType), {
+    // A stored draft can outlive the desktop process that picked the element.
+    decode: SchemaGetter.transform((item) => ({
+      ...item,
+      element: durableBrowserElement(item.element),
+      key: contextItemKey(item),
+    })),
+    encode: SchemaGetter.transform((item) => item),
+  }),
+)
+const ContextEntry = Schema.Union([FileContextEntry, BrowserContextEntry])
 
 export const DEFAULT_PROMPT: Prompt = [{ type: "text", content: "", start: 0, end: 0 }]
 

packages/app/src/composer/selection.ts

@@ -12,7 +12,11 @@ import { cycleModelVariant, getConfiguredAgentVariant, resolveModelVariant } fro
 import { useComposerState } from "./persistence"
 import { useConfiguredModel } from "@/providers/models/configured"
 
-export function createComposerControls(input: { sessionKey: Accessor<string>; model?: ModelSelection }) {
+export function createComposerControls(input: {
+  sessionKey: Accessor<string>
+  model?: ModelSelection
+  browser?: ComposerControls["session"]["browser"]
+}) {
   const layout = useLayout()
   const local = useLocal()
   const sdk = useWorkspaceLocation()
@@ -40,6 +44,7 @@ export function createComposerControls(input: { sessionKey: Accessor<string>; mo
       session: {
         tabs: layout.tabs(input.sessionKey),
         reviewPanel: view.reviewPanel,
+        browser: input.browser,
       },
     }
   })

packages/app/src/composer/state.ts

@@ -17,6 +17,9 @@ import {
 export { DEFAULT_PROMPT } from "./schema"
 export type {
   AgentPart,
+  BrowserComment,
+  BrowserContextItem,
+  BrowserElement,
   ComposerStore,
   ContentPart,
   ContextItem,
@@ -38,7 +41,7 @@ type InitialPrompt = {
 }
 
 export function isCommentItem(item: ContextItem | (ContextItem & { key: string })) {
-  return item.type === "file" && !!item.comment?.trim()
+  return !!item.comment?.trim()
 }
 
 function createComposerActions(setStore: SetStoreFunction<ComposerStore>) {
@@ -137,7 +140,7 @@ function createComposerStateValue(store: ComposerStore, setStore: SetStoreFuncti
         )
         clearRetry()
       },
-      replaceComments(items: FileContextItem[]) {
+      replaceComments(items: ContextItem[]) {
         setStore("context", "items", (current) => [
           ...current.filter((item) => !isCommentItem(item)),
           ...items.map((item) => ({ ...item, key: contextItemKey(item) })),

packages/app/src/composer/submit.ts

@@ -1,6 +1,7 @@
 import { SessionMessage } from "@opencode/schema/session-message"
 import type { SessionMessageUser } from "@opencode/client/promise"
 import type { Accessor } from "solid-js"
+import type { PromptComment } from "./comment-note"
 import type { PromptHistoryComment } from "./history/entry"
 import type { ImageAttachmentPart, Prompt } from "./state"
 import { clonePrompt, promptLength } from "./prompt-parts"
@@ -73,10 +74,13 @@ export function createComposerSubmit(input: ComposerSubmitInput) {
     const submission = createComposerSubmission({
       target: input.adapter.state,
       prompt,
-      context: input.adapter.state.context.items().map((item) => ({
-        ...item,
-        selection: item.selection ? { ...item.selection } : undefined,
-      })),
+      context: input.adapter.state.context
+        .items()
+        .map((item) =>
+          item.type === "browser"
+            ? { ...item, element: { ...item.element } }
+            : { ...item, selection: item.selection ? { ...item.selection } : undefined },
+        ),
     })
     const read = readSubmission(input, submission.prompt, submission.context, text, options?.alternate ?? false)
     if (!read) {
@@ -195,19 +199,30 @@ function handoffMessage(value: ComposerSubmission): SessionMessageUser {
       attachments: value.prompt.flatMap((part) =>
         part.type === "path" ? [{ name: part.filename, mime: part.mime, path: part.path }] : [],
       ),
-      comments: value.context.flatMap((item) =>
-        item.comment?.trim()
-          ? [
-              {
-                path: item.path,
-                comment: item.comment.trim(),
-                ...(item.selection ? { selection: { ...item.selection } } : {}),
-                ...(item.preview !== undefined ? { preview: item.preview } : {}),
-                ...(item.commentOrigin ? { origin: item.commentOrigin } : {}),
-              },
-            ]
-          : [],
-      ),
+      comments: value.context.flatMap((item): PromptComment[] => {
+        const comment = item.comment?.trim()
+        if (!comment) return []
+        if (item.type === "browser")
+          return [
+            {
+              type: "browser",
+              tabID: item.tabID,
+              url: item.url,
+              ...(item.title ? { title: item.title } : {}),
+              element: { ...item.element },
+              comment,
+            },
+          ]
+        return [
+          {
+            path: item.path,
+            comment,
+            ...(item.selection ? { selection: { ...item.selection } } : {}),
+            ...(item.preview !== undefined ? { preview: item.preview } : {}),
+            ...(item.commentOrigin ? { origin: item.commentOrigin } : {}),
+          },
+        ]
+      }),
       agent: value.selection.agent,
       model: {
         ...value.selection.model,
@@ -287,15 +302,27 @@ function restoreSubmission(
   restored.target.context.replaceComments(
     restored.context
       .filter((item) => !!item.comment?.trim())
-      .map((item) => ({
-        type: "file",
-        path: item.path,
-        selection: item.selection,
-        comment: item.comment,
-        commentID: item.commentID,
-        commentOrigin: item.commentOrigin,
-        preview: item.preview,
-      })),
+      .map((item) =>
+        item.type === "browser"
+          ? {
+              type: "browser",
+              tabID: item.tabID,
+              url: item.url,
+              title: item.title,
+              element: item.element,
+              comment: item.comment,
+              commentID: item.commentID,
+            }
+          : {
+              type: "file",
+              path: item.path,
+              selection: item.selection,
+              comment: item.comment,
+              commentID: item.commentID,
+              commentOrigin: item.commentOrigin,
+              preview: item.preview,
+            },
+      ),
   )
   // A recovered follow-up changes the payload, so it must use a new admission ID.
   if (value.mode === "normal" && restored.prompt === submission.prompt) {

packages/app/src/desktop.ts

@@ -5,6 +5,7 @@ export { loadLocaleDict, normalizeLocale, type Locale, useLanguage } from "./run
 export { type FatalRendererErrorLog, type Platform, PlatformProvider } from "./runtime/platform/platform"
 export type {
   BrowserPaneCommand,
+  BrowserPaneElement,
   BrowserPaneEndpoint,
   BrowserPaneEvent,
   BrowserPaneLayout,

packages/app/src/index.css

@@ -445,6 +445,42 @@
     }
   }
 
+  @keyframes browser-comment-enter {
+    from {
+      opacity: 0;
+    }
+  }
+
+  @keyframes browser-comment-editor-enter {
+    from {
+      opacity: 0;
+      transform: translateY(4px) scale(0.98);
+    }
+  }
+
+  [data-component="browser-comment"] {
+    animation: browser-comment-enter 160ms cubic-bezier(0.215, 0.61, 0.355, 1);
+  }
+
+  /* Dim the frozen page around the picked element, whose DevTools highlight stays in the still. */
+  [data-component="browser-comment"] [data-slot="browser-comment-spotlight"] {
+    box-shadow:
+      0 0 0 1px var(--v2-border-border-focus),
+      0 0 0 100vmax color-mix(in srgb, var(--v2-overlay-simple-overlay-scrim) 50%, transparent);
+  }
+
+  [data-component="browser-comment"] [data-slot="browser-comment-editor"] {
+    animation: browser-comment-editor-enter 200ms cubic-bezier(0.215, 0.61, 0.355, 1);
+    transform-origin: top left;
+  }
+
+  @media (prefers-reduced-motion: reduce) {
+    [data-component="browser-comment"],
+    [data-component="browser-comment"] [data-slot="browser-comment-editor"] {
+      animation: none;
+    }
+  }
+
   [data-slot="home-projects-scroll"] {
     timeline-scope: --home-projects-scroll;
   }

packages/app/src/new-session/project/controller.ts

@@ -62,6 +62,7 @@ export function createComposerProjectControls(props: { draftId: string; worktree
   return createMemo<PromptProjectControls>(() => ({
     available: projects(),
     directory: location().directory,
+    projectID: location().current?.project.id,
     server: servers.list.length > 1 ? ServerConnection.key(projectServer()) : undefined,
     select: selectProject,
     add: addProject,

packages/app/src/new-session/project/selector.test.tsx

@@ -0,0 +1,51 @@
+import { describe, expect, mock, test } from "bun:test"
+import { createRoot } from "solid-js"
+import type { PromptProjectControls } from "./selector"
+
+mock.module("@/runtime/i18n/language", () => ({ useLanguage: () => ({ t: (key: string) => key }) }))
+
+const { createPromptProjectController } = await import("./selector")
+
+describe("new session project selection", () => {
+  test("shows the current project's appearance before its worktree inventory loads", () => {
+    const generic = { id: "other", worktree: "/other" }
+    const current = {
+      id: "current",
+      worktree: "/repo",
+      name: "My custom name",
+      icon: { override: "data:image/png;base64,AAAA" },
+    }
+    const controls: PromptProjectControls = {
+      available: [generic, current],
+      directory: "/repo/.opencode/worktree/feature",
+      projectID: "current",
+      select() {},
+      add() {},
+    }
+
+    createRoot((dispose) => {
+      const controller = createPromptProjectController({ controls: () => controls, onDone() {} })
+      expect(controller.selected()).toEqual(current)
+      dispose()
+    })
+  })
+
+  test("does not select a matching project ID from another server", () => {
+    const remote = { id: "shared", worktree: "/remote", server: { key: "remote", name: "Remote" } }
+    const local = { id: "shared", worktree: "/local", server: { key: "local", name: "Local" } }
+    const controls: PromptProjectControls = {
+      available: [remote, local],
+      directory: "/local/feature",
+      projectID: "shared",
+      server: "local",
+      select() {},
+      add() {},
+    }
+
+    createRoot((dispose) => {
+      const controller = createPromptProjectController({ controls: () => controls, onDone() {} })
+      expect(controller.selected()).toEqual(local)
+      dispose()
+    })
+  })
+})

packages/app/src/new-session/project/selector.tsx

@@ -31,6 +31,7 @@ export type PromptProject = {
 export type PromptProjectControls = {
   available: PromptProject[]
   directory: string
+  projectID?: string
   server?: string
   select: (worktree: string, server?: string) => void
   add: (title: string, server?: string) => void
@@ -56,14 +57,15 @@ export function createPromptProjectController(input: {
   let searchRef: HTMLInputElement | undefined
 
   const current = () => {
-    const key = pathKey(input.controls().directory)
-    return input
-      .controls()
-      .available.find(
+    const controls = input.controls()
+    const key = pathKey(controls.directory)
+    const projects = controls.available.filter((project) => !project.server || project.server.key === controls.server)
+    return (
+      projects.find(
         (project) =>
-          (!project.server || project.server.key === input.controls().server) &&
-          (pathKey(project.worktree) === key || project.sandboxes?.some((sandbox) => pathKey(sandbox) === key)),
-      )
+          pathKey(project.worktree) === key || project.sandboxes?.some((sandbox) => pathKey(sandbox) === key),
+      ) ?? projects.find((project) => controls.projectID && project.id === controls.projectID)
+    )
   }
   const selected = () => current() ?? input.controls().available[0]
   const projects = () => {

packages/app/src/providers/connect/chatgpt-usage-limit.stories.tsx

@@ -0,0 +1,23 @@
+import { Button } from "@opencode/ui/button"
+import { useDialog } from "@opencode/ui/context/dialog"
+import { onMount } from "solid-js"
+import { DialogChatGPTUsageLimit } from "./chatgpt-usage-limit"
+
+function UsageLimitStory() {
+  const dialog = useDialog()
+  const open = () => dialog.show(() => <DialogChatGPTUsageLimit />)
+  onMount(open)
+
+  return (
+    <Button variant="neutral" onClick={open}>
+      Open ChatGPT usage limit
+    </Button>
+  )
+}
+
+export default {
+  title: "App/Dialogs/Connect Provider",
+  id: "app-dialog-chatgpt-usage-limit",
+}
+
+export const ChatGPTUsageLimit = { render: () => <UsageLimitStory /> }

packages/app/src/providers/connect/chatgpt-usage-limit.tsx

@@ -0,0 +1,48 @@
+import { Button } from "@opencode/ui/button"
+import { useDialog } from "@opencode/ui/context/dialog"
+import { Dialog, DialogTitle } from "@opencode/ui/dialog"
+import { ProviderIcon } from "@opencode/ui/provider-icon"
+import { useLanguage } from "@/runtime/i18n/language"
+import { usePlatform } from "@/runtime/platform/platform"
+
+export function DialogChatGPTUsageLimit() {
+  const dialog = useDialog()
+  const language = useLanguage()
+  const platform = usePlatform()
+
+  return (
+    <Dialog fit containerClass="!w-[min(calc(100vw_-_32px),390px)] !rounded-xl">
+      <div class="flex w-full flex-col items-center px-8 pb-8 pt-9 text-center [font-family:var(--v2-font-family-sans)]">
+        <ProviderIcon id="openai" class="!size-12 text-v2-icon-icon-base" aria-hidden="true" />
+        <div class="mt-6 max-w-[270px] text-[20px] font-[530] leading-7 tracking-[-0.3px] text-v2-text-text-base">
+          <DialogTitle>
+            <bdi dir="auto">{language.t("provider.connect.chatgptUsageLimit.title")}</bdi>
+          </DialogTitle>
+        </div>
+        <p class="mt-3 text-[13px] leading-5 text-v2-text-text-muted">
+          <bdi dir="auto">{language.t("provider.connect.chatgptUsageLimit.description")}</bdi>
+        </p>
+        <Button
+          variant="contrast"
+          size="large"
+          class="mt-8 w-full"
+          autofocus
+          onClick={() => {
+            platform.openExternal("https://chatgpt.com/settings/usage")
+            dialog.close()
+          }}
+        >
+          {language.t("provider.connect.chatgptUsageLimit.manage")}
+        </Button>
+        <Button
+          variant="ghost"
+          size="large"
+          class="mt-2 w-full"
+          onClick={() => dialog.close()}
+        >
+          {language.t("provider.connect.chatgptUsageLimit.close")}
+        </Button>
+      </div>
+    </Dialog>
+  )
+}

packages/app/src/providers/connect/chatgpt-welcome.stories.tsx

@@ -0,0 +1,23 @@
+import { Button } from "@opencode/ui/button"
+import { useDialog } from "@opencode/ui/context/dialog"
+import { onMount } from "solid-js"
+import { DialogChatGPTPlanWelcome } from "./chatgpt-welcome"
+
+function WelcomeStory() {
+  const dialog = useDialog()
+  const open = () => dialog.show(() => <DialogChatGPTPlanWelcome />)
+  onMount(open)
+
+  return (
+    <Button variant="neutral" onClick={open}>
+      Open ChatGPT plan welcome
+    </Button>
+  )
+}
+
+export default {
+  title: "App/Dialogs/Connect Provider",
+  id: "app-dialog-chatgpt-welcome",
+}
+
+export const ChatGPTPlanWelcome = { render: () => <WelcomeStory /> }

packages/app/src/providers/connect/chatgpt-welcome.tsx

@@ -0,0 +1,37 @@
+import { Button } from "@opencode/ui/button"
+import { useDialog } from "@opencode/ui/context/dialog"
+import { Dialog, DialogTitle } from "@opencode/ui/dialog"
+import { ProviderIcon } from "@opencode/ui/provider-icon"
+import { useLanguage } from "@/runtime/i18n/language"
+import { ExternalLink } from "@/runtime/platform/external-link"
+
+export function DialogChatGPTPlanWelcome() {
+  const dialog = useDialog()
+  const language = useLanguage()
+
+  return (
+    <Dialog fit containerClass="!w-[min(calc(100vw_-_32px),390px)] !rounded-xl">
+      <div class="flex w-full flex-col items-center px-8 pb-8 pt-9 text-center [font-family:var(--v2-font-family-sans)]">
+        <ProviderIcon id="openai" class="!size-12 text-v2-icon-icon-base" aria-hidden="true" />
+        <div class="mt-6 max-w-[270px] text-[20px] font-[530] leading-7 tracking-[-0.3px] text-v2-text-text-base">
+          <DialogTitle>
+            <bdi dir="auto">{language.t("provider.connect.chatgptWelcome.title")}</bdi>
+          </DialogTitle>
+        </div>
+        <p class="mt-3 text-[13px] leading-5 text-v2-text-text-muted">
+          <bdi dir="auto">{language.t("provider.connect.chatgptWelcome.description")}</bdi>
+        </p>
+        <ExternalLink
+          href="https://chatgpt.com/settings/usage"
+          dir="auto"
+          class="mt-1 rounded-sm text-[13px] leading-5 text-v2-text-text-muted underline-offset-2 hover:text-v2-text-text-base focus-visible:outline focus-visible:outline-2"
+        >
+          {language.t("provider.connect.chatgptWelcome.usage")}
+        </ExternalLink>
+        <Button variant="contrast" size="large" class="mt-8 w-full" autofocus onClick={() => dialog.close()}>
+          {language.t("provider.connect.chatgptWelcome.confirm")}
+        </Button>
+      </div>
+    </Dialog>
+  )
+}

packages/app/src/providers/connect/dialog.tsx

@@ -39,6 +39,9 @@ import { OpenCodeLogo } from "@/providers/opencode-logo"
 import { decode64 } from "@/runtime/persistence/base64"
 import { SettingsList } from "@/settings/list"
 import { useTabs } from "@/shell/tabs/tabs"
+import { Persist, persisted } from "@/runtime/persistence/storage"
+import { Persistence } from "@/runtime/persistence/schema"
+import { Schema } from "effect"
 import {
   CONSOLE_INTEGRATION,
   CONSOLE_PROVIDERS,
@@ -48,6 +51,7 @@ import {
   type ProviderConnectMethod,
 } from "./controller"
 import { ConsoleAuthorization } from "./console"
+import { DialogChatGPTPlanWelcome } from "./chatgpt-welcome"
 import { authServerName, RemoteAuthNotice } from "./remote"
 import "./models.css"
 
@@ -81,8 +85,15 @@ export const DialogConnectProvider: Component<{
     completed: false,
     modelProvider: undefined as { id: string; name: string } | undefined,
     authorization: false,
+    chatgptWelcome: false,
   })
   const language = useLanguage()
+  const dialog = useDialog()
+  const [welcome, setWelcome, , welcomeReady] = persisted(
+    Persist.global("chatgpt-plan-welcome.v1"),
+    Persistence.struct({ seen: Schema.Boolean }),
+    { seen: false },
+  )
   const reset = controller.reset
   const back = { current: reset }
   const consoleSelected = () => CONSOLE_PROVIDERS.has(controller.selected() ?? "")
@@ -112,7 +123,11 @@ export const DialogConnectProvider: Component<{
               setBack={(handler) => (back.current = handler)}
               selection={props.selection}
               onDone={props.onDone ? () => setState("completed", true) : undefined}
-              onConnected={() => props.onConnected?.(provider)}
+              onConnected={(methodID) => {
+                props.onConnected?.(provider)
+                if (provider === "openai" && methodID === "chatgpt-token-sharing")
+                  setState("chatgptWelcome", true)
+              }}
               onFirstConnection={(provider) => setState("modelProvider", provider)}
               onAuthorization={(authorization) => setState("authorization", authorization)}
             />
@@ -136,9 +151,16 @@ export const DialogConnectProvider: Component<{
             : "!h-[min(calc(100vh_-_16px),512px)] !w-[min(calc(100vw_-_16px),640px)]"
       }
       onCloseAutoFocus={(event) => {
-        if (!state.completed || !props.onDone) return
-        event.preventDefault()
-        props.onDone()
+        if (state.completed && props.onDone) {
+          event.preventDefault()
+          props.onDone()
+        }
+        if (!state.chatgptWelcome) return
+        void Promise.resolve(welcomeReady.promise).then(() => {
+          if (welcome.seen) return
+          setWelcome("seen", true)
+          void dialog.show(() => <DialogChatGPTPlanWelcome />)
+        })
       }}
       class="[font-family:var(--v2-font-family-sans)] [&_[data-slot=dialog-header]]:!px-5 [&_[data-slot=dialog-header-title]]:!text-[15px] [&_[data-slot=dialog-header-title]]:!tracking-[-0.13px]"
       classList={{
@@ -354,7 +376,7 @@ function ProviderConnection(props: {
   setBack: (handler: () => void) => void
   selection?: ModelSelection
   onDone?: () => void
-  onConnected?: () => void
+  onConnected?: (methodID?: string) => void
   onFirstConnection: (provider: { id: string; name: string }) => void
   onAuthorization: (authorization: boolean) => void
 }) {
@@ -401,7 +423,8 @@ function ProviderConnection(props: {
     prepare: isConsole ? prepareConsoleCatalog : undefined,
     pollInterval: isConsole ? 500 : undefined,
     onComplete: () => {
-      props.onConnected?.()
+      const method = controller.currentMethod()
+      props.onConnected?.(method?.type === "oauth" ? method.id : undefined)
       // The picker only lists the newest model per family by default, which hides most of
       // what a new connection just unlocked. Show everything the connected integration offers.
       global.models.show(

packages/app/src/providers/models/select-dialog.stories.tsx

@@ -0,0 +1,78 @@
+import { Button } from "@opencode/ui/button"
+import { createSignal } from "solid-js"
+import type { ModelSelection } from "./selection"
+import { ModelSelectorPopoverView } from "./select-dialog"
+
+const chatgpt = {
+  id: "gpt-5.6-sol",
+  providerID: "openai",
+  api: { id: "gpt-5.6-sol", url: "https://api.openai.com/v1", npm: "@opencode/ai/providers/openai" },
+  name: "GPT-5.6 Sol",
+  family: "gpt",
+  capabilities: {
+    temperature: true,
+    reasoning: true,
+    attachment: true,
+    toolcall: true,
+    input: { text: true, audio: false, image: true, video: false, pdf: false },
+    output: { text: true, audio: false, image: false, video: false, pdf: false },
+    interleaved: true,
+  },
+  cost: { input: 0, output: 0, cache: { read: 0, write: 0 } },
+  limit: { context: 400_000, output: 64_000 },
+  status: "active",
+  options: {},
+  headers: {},
+  release_date: "2026-09-01",
+  variants: {},
+  provider: {
+    id: "openai",
+    name: "OpenAI",
+    source: "custom",
+    env: [],
+    options: {},
+    models: {},
+  },
+  latest: true,
+} satisfies NonNullable<ReturnType<ModelSelection["current"]>>
+
+const models = [
+  chatgpt,
+  {
+    ...chatgpt,
+    id: "gpt-5.6-terra",
+    api: { ...chatgpt.api, id: "gpt-5.6-terra" },
+    name: "GPT-5.6 Terra",
+    latest: false,
+  },
+]
+
+function SelectorStory(props: { plan: boolean }) {
+  const [current, setCurrent] = createSignal(models[0].id)
+  return (
+    <div class="flex min-h-[280px] items-end justify-center">
+      <ModelSelectorPopoverView
+        trigger={(trigger) => (
+          <Button {...trigger} variant="ghost-muted">
+            {models.find((model) => model.id === current())?.name}
+          </Button>
+        )}
+        models={(search) => models.filter((model) => model.name.toLowerCase().includes(search.toLowerCase()))}
+        groups={(items) => [{ category: "openai", items }]}
+        current={`openai:${current()}`}
+        chatgptPlan={props.plan}
+        select={(item) => setCurrent(item.id)}
+        onManage={() => undefined}
+        onClose={() => undefined}
+      />
+    </div>
+  )
+}
+
+export default {
+  title: "App/Dialogs/Model Selector",
+  id: "app-dialog-model-selector",
+}
+
+export const ChatGPTPlan = { render: () => <SelectorStory plan /> }
+export const ApiKey = { render: () => <SelectorStory plan={false} /> }

packages/app/src/providers/models/select-dialog.tsx

@@ -15,13 +15,16 @@ import { Menu } from "@opencode/ui/menu"
 import { TextInput } from "@opencode/ui/text-input"
 import { ModelTooltip } from "./tooltip"
 import { useLanguage } from "@/runtime/i18n/language"
+import { ExternalLink } from "@/runtime/platform/external-link"
+import { useData } from "@/runtime/server/current"
+import { useWorkspaceLocation } from "@/workspaces/location"
 import { decode64 } from "@/runtime/persistence/base64"
 import { handleDocumentSearchKeydown } from "@/shell/commands/search-keydown"
 import { createMenuDismissController } from "@/shell/commands/menu-dismiss"
 import { createEventListener } from "@solid-primitives/event-listener"
 import { matchesModelSearch } from "./search"
 import { SettingsList } from "@/settings/list"
-import { CONSOLE_GROUP_KEY, consoleModelGroup, ProviderModelSections } from "@/providers/models/provider-group"
+import { CONSOLE_GROUP_KEY, consoleModelGroup, ProviderModelIcon, ProviderModelSections } from "@/providers/models/provider-group"
 import "@/settings/settings.css"
 
 const isFree = (provider: string, cost: { input: number } | undefined) =>
@@ -218,11 +221,21 @@ export function ModelSelectorPopover(props: {
   onClose?: () => void
 }) {
   const dialog = useDialog()
+  const data = useData()
+  const location = useWorkspaceLocation()
   const controller = createModelSelectorController({
     model: props.model,
     provider: () => props.provider,
     onSelect: () => props.onClose?.(),
   })
+  const chatgptPlan = () => {
+    if (!controller.current()?.startsWith("openai:")) return false
+    const connection = data.location.integration
+      .list(location().ref)
+      ?.find((integration) => integration.id === "openai")
+      ?.connections[0]
+    return connection?.type === "credential" && connection.method === "oauth"
+  }
 
   return (
     <ModelSelectorPopoverView
@@ -230,6 +243,7 @@ export function ModelSelectorPopover(props: {
       models={controller.models}
       groups={controller.groups}
       current={controller.current()}
+      chatgptPlan={chatgptPlan()}
       select={controller.select}
       onManage={() => {
         void import("./manage").then((module) => {
@@ -281,11 +295,12 @@ function createModelSelectorController(input: {
   }
 }
 
-function ModelSelectorPopoverView(props: {
+export function ModelSelectorPopoverView(props: {
   trigger: ModelSelectorTrigger
   models: (search: string) => ModelItem[]
   groups: (models: ModelItem[]) => { category: string; items: ModelItem[] }[]
   current: string | undefined
+  chatgptPlan?: boolean
   select: (item: ModelItem) => void
   onManage: () => void
   onClose: () => void
@@ -368,7 +383,8 @@ function ModelSelectorPopoverView(props: {
       <Menu.Portal>
         <Menu.Content
           ref={(element: HTMLDivElement) => (contentRef = element)}
-          class="w-[284px] overflow-hidden rounded-md border-0 bg-v2-background-bg-layer-01 !p-0 shadow-[var(--v2-elevation-floating)] focus:outline-none"
+          class="w-[284px] max-w-[calc(100vw-16px)] overflow-hidden rounded-md border-0 bg-v2-background-bg-layer-01 !p-0 shadow-[var(--v2-elevation-floating)] focus:outline-none"
+          classList={{ "!w-[320px]": props.chatgptPlan }}
           onPointerDownOutside={dismiss.preventTriggerRestore}
           onFocusOutside={dismiss.preventTriggerRestore}
           onCloseAutoFocus={dismiss.onCloseAutoFocus}
@@ -505,6 +521,20 @@ function ModelSelectorPopoverView(props: {
               <span class="min-w-0 flex-1 truncate leading-5">{language.t("dialog.model.manage")}</span>
             </Menu.Item>
           </div>
+          <Show when={props.chatgptPlan}>
+            <div class="h-px bg-v2-border-border-muted" />
+            <div class="flex min-h-10 items-center gap-2 px-3 py-2 text-[13px] leading-5 text-v2-text-text-base">
+              <ProviderModelIcon provider={{ id: "openai", name: "OpenAI" }} class="shrink-0" />
+              <span class="min-w-0 flex-1 truncate">{language.t("dialog.model.chatgptPlan")}</span>
+              <ExternalLink
+                href="https://chatgpt.com/settings/usage"
+                class="flex shrink-0 items-center gap-1 rounded-sm text-v2-text-text-muted no-underline hover:text-v2-text-text-base focus-visible:outline focus-visible:outline-2"
+              >
+                {language.t("dialog.model.chatgptManageUsage")}
+                <Icon name="arrow-up-right" size="small" />
+              </ExternalLink>
+            </div>
+          </Show>
         </Menu.Content>
       </Menu.Portal>
     </Menu>

packages/app/src/runtime/i18n/en.ts

@@ -111,6 +111,7 @@ export const dict = {
   "command.file.open": "Open file",
   "command.browser.open": "Open browser",
   "command.browser.reload": "Reload browser page",
+  "command.browser.inspect": "Select an element in the browser page",
   "command.tab.close": "Close tab",
   "command.tab.reopenClosed": "Reopen closed tab",
   "command.context.addSelection": "Add selection to context",
@@ -186,6 +187,8 @@ export const dict = {
   "dialog.model.empty": "No model results",
   "dialog.model.manage": "Manage models",
   "dialog.model.manage.description": "Customize which models appear in the model selector.",
+  "dialog.model.chatgptPlan": "Using ChatGPT plan",
+  "dialog.model.chatgptManageUsage": "Manage usage",
   "dialog.model.manage.provider.toggle": "Toggle all {{provider}} models",
 
   "dialog.model.unpaid.freeModels.title": "Free models provided by OpenCode",
@@ -217,7 +220,15 @@ export const dict = {
   "provider.connect.models.title": "Connected to {{provider}}",
   "provider.connect.models.description": "Choose a model to start with. You can switch models anytime.",
   "provider.connect.models.available": "Available models",
+  "provider.connect.chatgptWelcome.title": "ChatGPT connected",
+  "provider.connect.chatgptWelcome.description": "Eligible requests in OpenCode can use your ChatGPT plan.",
+  "provider.connect.chatgptWelcome.usage": "Manage usage in ChatGPT settings",
+  "provider.connect.chatgptWelcome.confirm": "Got it",
   "provider.connect.models.list": "Models available from {{provider}}",
+  "provider.connect.chatgptUsageLimit.title": "ChatGPT usage limit reached",
+  "provider.connect.chatgptUsageLimit.description": "Check your usage and limits in ChatGPT settings.",
+  "provider.connect.chatgptUsageLimit.manage": "Manage usage",
+  "provider.connect.chatgptUsageLimit.close": "Close",
   "provider.connect.console.refreshFailed":
     "Your account is connected, but we couldn't load your models. Try again to refresh them.",
   "provider.connect.console.connected": "OpenCode connected",
@@ -1012,6 +1023,9 @@ export const dict = {
   "session.browser.unsupported": "This desktop app does not support the browser pane.",
   "session.browser.suspended": "Browser suspended. Interact with this session to reconnect.",
   "session.browser.address.placeholder": "Enter URL",
+  "session.browser.inspect": "Select an element to comment on",
+  "session.browser.inspect.active": "Click an element in the page to comment on it. Press Escape to cancel.",
+  "session.browser.inspect.pageShortcut": "While the page has focus",
   "session.browser.empty.title": "Enter URL",
   "session.browser.empty.description": 'Or prompt "Open in the app browser"',
   "session.browser.failed.title": "URL can't be reached",

packages/app/src/runtime/platform/browser-pane.ts

@@ -17,16 +17,32 @@ export type BrowserPaneLayout = {
 
 export type BrowserPaneCommand = Browser.Action
 export type BrowserPaneState = Browser.State | null
+/** An element the user picked in the page. The ref stays valid for browser tools until the page navigates. */
+export type BrowserPaneElement = {
+  ref: Browser.Ref
+  selector: string
+  label: string
+  role?: string
+  name?: string
+  text?: string
+  /** Border box in the native view's DIPs. */
+  rect: { x: number; y: number; width: number; height: number }
+}
 export type BrowserPaneEvent =
   | { type: "focus"; tabID: Browser.TabID }
   | { type: "preview"; path: string }
   | { type: "state"; state: BrowserPaneState; error?: string }
+  | { type: "inspect"; tabID: Browser.TabID; active: boolean; element?: BrowserPaneElement }
 
 export type BrowserPaneRegistration = {
   setLayout(layout?: BrowserPaneLayout): void
   command(command: BrowserPaneCommand): Promise<void>
   /** Captures the shown page, or resolves null when nothing is on screen. */
   capture(tabID: Browser.TabID): Promise<Blob | null>
+  /** Starts or stops the page's element picker; the page reports picks and exits as inspect events. */
+  inspect(tabID: Browser.TabID, enabled: boolean): void
+  /** Highlights a picked element briefly, or clears any highlight when ref is omitted. */
+  highlight(tabID: Browser.TabID, ref?: Browser.Ref): void
   close(): void
 }
 

packages/app/src/session/browser/attachments.ts

@@ -2,7 +2,8 @@ import { batch, createEffect, createMemo, createRoot, getOwner, on, onCleanup, r
 import { createStore, reconcile } from "solid-js/store"
 import { createSimpleContext } from "@opencode/ui/context"
 import { useLanguage } from "@/runtime/i18n/language"
-import type { BrowserPaneCommand } from "@/runtime/platform/browser-pane"
+import type { Browser } from "@opencode/plugin-browser/rpc"
+import type { BrowserPaneCommand, BrowserPaneEvent } from "@/runtime/platform/browser-pane"
 import { usePlatform } from "@/runtime/platform/platform"
 import type { useServer } from "@/runtime/server/current"
 import type { SessionStateKey } from "@/runtime/server/scope"
@@ -13,6 +14,7 @@ import { createEventListener } from "@solid-primitives/event-listener"
 import { createBrowserConnection, type BrowserConnectionState } from "./connection"
 
 type Server = ReturnType<typeof useServer>
+type InspectEvent = Extract<BrowserPaneEvent, { type: "inspect" }>
 
 export type BrowserAttachment = BrowserConnectionState
 
@@ -42,6 +44,7 @@ export const { use: useBrowserAttachments, provider: BrowserAttachmentsProvider
     const [unsupported, setUnsupported] = createStore<Record<string, true | undefined>>({})
     const live = new Map<string, Live>()
     const preview = new Map<string, Set<(path: string) => void>>()
+    const inspect = new Map<string, Set<(event: InspectEvent) => void>>()
     const key = (server: Server, sessionID: string) => `${server.key}\n${sessionID}`
     const enabled = createMemo(() => !!platform.browserPane)
     const close = (id: string) => {
@@ -110,6 +113,7 @@ export const { use: useBrowserAttachments, provider: BrowserAttachmentsProvider
             })
           },
           preview: (path) => preview.get(id)?.forEach((listener) => listener(path)),
+          inspect: (event) => inspect.get(id)?.forEach((listener) => listener(event)),
           change: (state) => {
             if (state.error === "browser.pane.unsupported") {
               setUnsupported(server.key, true)
@@ -152,20 +156,34 @@ export const { use: useBrowserAttachments, provider: BrowserAttachmentsProvider
       },
       /** Agent requests to show a file in this session's Review pane. */
       onPreview(server: Server, sessionID: string, listener: (path: string) => void) {
-        const id = key(server, sessionID)
-        const listeners = preview.get(id) ?? new Set()
-        listeners.add(listener)
-        preview.set(id, listeners)
-        return () => {
-          listeners.delete(listener)
-          if (!listeners.size) preview.delete(id)
-        }
+        return subscribe(preview, key(server, sessionID), listener)
+      },
+      /** The page's element picker starting, stopping, or picking an element. */
+      onInspect(server: Server, sessionID: string, listener: (event: InspectEvent) => void) {
+        return subscribe(inspect, key(server, sessionID), listener)
       },
       command(server: Server, sessionID: string, command: BrowserPaneCommand) {
         const connection = live.get(key(server, sessionID))?.connection
         if (!connection) return Promise.reject(new Error("browser.pane.unavailable"))
         return connection.command(command)
       },
+      highlight(server: Server, sessionID: string, tabID: Browser.TabID, ref?: Browser.Ref) {
+        live.get(key(server, sessionID))?.connection.highlight(tabID, ref)
+      },
     }
   },
 })
+
+function subscribe<Value>(
+  listeners: Map<string, Set<(value: Value) => void>>,
+  id: string,
+  listener: (value: Value) => void,
+) {
+  const set = listeners.get(id) ?? new Set()
+  set.add(listener)
+  listeners.set(id, set)
+  return () => {
+    set.delete(listener)
+    if (!set.size) listeners.delete(id)
+  }
+}

packages/app/src/session/browser/connection.test.ts

@@ -29,11 +29,14 @@ function fixture() {
   }[] = []
   const endpoint = { url: "http://localhost:4096" }
   const previews: string[] = []
+  const inspections: Extract<BrowserPaneEvent, { type: "inspect" }>[] = []
+  const highlights: (Browser.Ref | undefined)[] = []
   const connection = createBrowserConnection({
     target: () => ({ serverKey: "browser-test", sessionID: "ses_browser", endpoint: { ...endpoint } }),
     change: (state) => states.push(state),
     focus: () => {},
     preview: (path) => previews.push(path),
+    inspect: (event) => inspections.push(event),
     pane: {
       register(target, emit) {
         const call = { target, emit, closed: false, commands: [] as Browser.Action[] }
@@ -46,6 +49,10 @@ function fixture() {
           async capture() {
             return null
           },
+          inspect() {},
+          highlight(_tabID, ref) {
+            highlights.push(ref)
+          },
           close() {
             call.closed = true
           },
@@ -55,9 +62,30 @@ function fixture() {
   })
   connection.wake()
   calls[0].emit({ type: "state", state: browser })
-  return { connection, calls, states, endpoint, previews }
+  return { connection, calls, states, endpoint, previews, inspections, highlights }
 }
 
+test("picked elements reach the session and highlights reach the page without touching connection state", () => {
+  const app = fixture()
+  try {
+    const before = app.states.length
+    const element = {
+      ref: Browser.Ref.make("e4"),
+      selector: "#save",
+      label: "button#save",
+      rect: { x: 1, y: 2, width: 3, height: 4 },
+    }
+    app.calls[0].emit({ type: "inspect", tabID, active: false, element })
+    expect(app.inspections).toEqual([{ type: "inspect", tabID, active: false, element }])
+    app.connection.highlight(tabID, element.ref)
+    app.connection.highlight(tabID)
+    expect(app.highlights).toEqual([element.ref, undefined])
+    expect(app.states).toHaveLength(before)
+  } finally {
+    app.connection.dispose()
+  }
+})
+
 test("preview requests reach the session without touching connection state", () => {
   const app = fixture()
   try {

packages/app/src/session/browser/connection.ts

@@ -1,4 +1,5 @@
 import type {
+  BrowserPaneEvent,
   BrowserPanePlatform,
   BrowserPaneRegistration,
   BrowserPaneState,
@@ -20,6 +21,7 @@ export function createBrowserConnection(input: {
   change: (state: BrowserConnectionState) => void
   focus: (tabID: Browser.TabID) => void
   preview: (path: string) => void
+  inspect: (event: Extract<BrowserPaneEvent, { type: "inspect" }>) => void
 }) {
   const state: BrowserConnectionState = { browser: null, suspended: false }
   let disposed = false
@@ -35,6 +37,7 @@ export function createBrowserConnection(input: {
         if (disposed || state.registration !== registration) return
         if (event.type === "focus") return input.focus(event.tabID)
         if (event.type === "preview") return input.preview(event.path)
+        if (event.type === "inspect") return input.inspect(event)
         if (event.error === "browser.pane.unsupported" || event.error === "browser.pane.replaced") {
           blocked = true
           registration.close()
@@ -72,6 +75,9 @@ export function createBrowserConnection(input: {
       register()
       return state.registration?.command(command) ?? Promise.reject(new Error("browser.pane.unavailable"))
     },
+    highlight(tabID: Browser.TabID, ref?: Browser.Ref) {
+      state.registration?.highlight(tabID, ref)
+    },
     dispose() {
       disposed = true
       clearTimeout(retry)

packages/app/src/session/browser/model.ts

@@ -2,7 +2,7 @@ import { batch, createEffect, createMemo, on } from "solid-js"
 import type { Browser } from "@opencode/plugin-browser/rpc"
 import { createStore } from "solid-js/store"
 import { useLanguage } from "@/runtime/i18n/language"
-import type { BrowserPaneCommand } from "@/runtime/platform/browser-pane"
+import type { BrowserPaneCommand, BrowserPaneEvent } from "@/runtime/platform/browser-pane"
 import { useServer } from "@/runtime/server/current"
 import { useCommand } from "@/shell/commands/command"
 import type { SessionModel } from "../model"
@@ -120,5 +120,24 @@ export function createSessionBrowser(session: SessionModel) {
     close: (tabID: Browser.TabID) => session.layout.tabs().close(sessionBrowserTab(tabID)),
     open,
     command,
+    onInspect(listener: (event: Extract<BrowserPaneEvent, { type: "inspect" }>) => void) {
+      const sessionID = session.identity.sessionID()
+      return sessionID ? attachments.onInspect(server, sessionID, listener) : () => undefined
+    },
+    /** Shows the browser tab that owns a picked element and flashes the element. */
+    reveal(tabID: string, ref?: string) {
+      const sessionID = session.identity.sessionID()
+      const tab = browserTabs().find((tab) => tab.id === tabID)
+      if (!sessionID || !tab) return
+      const view = session.layout.view()
+      if (!view.reviewPanel.opened()) view.reviewPanel.open()
+      session.layout.tabs().setActive(sessionBrowserTab(tab.id))
+      if (ref && isRef(ref)) attachments.highlight(server, sessionID, tab.id, ref)
+    },
   }
 }
+
+// Stored comments keep refs as plain strings; this matches the desktop's ref format.
+function isRef(value: string): value is Browser.Ref {
+  return /^e[1-9][0-9]*$/.test(value)
+}

packages/app/src/session/browser/pane.tsx

@@ -1,20 +1,36 @@
 import { Icon } from "@opencode/ui/icon"
 import { IconButton } from "@opencode/ui/icon-button"
+import { LineCommentEditor, type LineCommentEditorMention } from "@opencode/ui/line-comment"
 import { Loader } from "@opencode/ui/loader"
 import { Keybind } from "@opencode/ui/keybind"
 import { Tooltip } from "@opencode/ui/tooltip"
 import { useDialog } from "@opencode/ui/context/dialog"
 import { createEventListener } from "@solid-primitives/event-listener"
 import { createResizeObserver } from "@solid-primitives/resize-observer"
-import { createEffect, For, on, onCleanup, Show } from "solid-js"
+import { createEffect, For, on, onCleanup, Show, untrack } from "solid-js"
 import { createStore } from "solid-js/store"
 import { useLanguage } from "@/runtime/i18n/language"
+import type { BrowserPaneElement } from "@/runtime/platform/browser-pane"
 import { usePlatform } from "@/runtime/platform/platform"
-import { useCommand } from "@/shell/commands/command"
+import { formatKeybindParts, useCommand } from "@/shell/commands/command"
 import type { Browser } from "@opencode/plugin-browser/rpc"
 import type { createSessionBrowser } from "./model"
 
-export function SessionBrowserPane(props: { browser: ReturnType<typeof createSessionBrowser>; visible: boolean }) {
+/** A comment on an element the user picked in the page. The ref is absent once the page navigated. */
+export type SessionBrowserComment = {
+  tabID: Browser.TabID
+  url: string
+  title: string
+  element: Omit<BrowserPaneElement, "rect" | "ref"> & { ref?: Browser.Ref }
+  comment: string
+}
+
+export function SessionBrowserPane(props: {
+  browser: ReturnType<typeof createSessionBrowser>
+  visible: boolean
+  onComment?: (comment: SessionBrowserComment) => void
+  mention?: LineCommentEditorMention
+}) {
   const platform = usePlatform()
   const language = useLanguage()
   const dialog = useDialog()
@@ -33,8 +49,91 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
     visible: typeof document === "undefined" || document.visibilityState === "visible",
     // A still of the page shown in the DOM while floating content covers the hidden native view.
     snapshot: undefined as { tabID: Browser.TabID; url: string } | undefined,
+    // The tab whose element picker is on.
+    picking: undefined as Browser.TabID | undefined,
+    // A picked element awaiting its comment. The page stays frozen as a still until it closes.
+    comment: undefined as
+      | {
+          tabID: Browser.TabID
+          url: string
+          title: string
+          // The tab's navigation count at the pick; the element's ref dies when it changes.
+          generation: number
+          element: BrowserPaneElement
+          draft: string
+        }
+      | undefined,
+    size: { width: 0, height: 0 },
+    editorHeight: 0,
   })
   const empty = () => !address() && !state()?.loading && !store.navigating
+  const inspectable = () => !!props.onComment && !!address() && !failed() && !props.browser.suspended()
+  const picking = () => !!state() && store.picking === state()?.id
+  const setPicking = (tabID: Browser.TabID, enabled: boolean) => {
+    registration()?.inspect(tabID, enabled)
+    setStore("picking", enabled ? tabID : undefined)
+  }
+  const toggleInspect = () => {
+    const tab = state()
+    if (!tab || !inspectable()) return
+    if (store.comment) closeComment()
+    setPicking(tab.id, !picking())
+  }
+  const closeComment = () => {
+    const current = store.comment
+    if (!current) return
+    registration()?.highlight(current.tabID)
+    setStore("comment", undefined)
+  }
+  const submitComment = (value: string) => {
+    const current = store.comment
+    if (!current) return
+    const tab = state()
+    // The draft outlives a reload or agent navigation, but the ref no longer names anything.
+    const live = tab?.id === current.tabID && tab.generation === current.generation
+    props.onComment?.({
+      tabID: current.tabID,
+      url: current.url,
+      title: current.title,
+      element: {
+        ...(live ? { ref: current.element.ref } : {}),
+        selector: current.element.selector,
+        label: current.element.label,
+        ...(current.element.role ? { role: current.element.role } : {}),
+        ...(current.element.name ? { name: current.element.name } : {}),
+        ...(current.element.text ? { text: current.element.text } : {}),
+      },
+      comment: value,
+    })
+    closeComment()
+  }
+  // The picked element in surface pixels, and the editor anchored below it, above it, or over it.
+  const spotlight = () => {
+    const rect = store.comment?.element.rect
+    if (!rect) return
+    const zoom = platform.webviewZoom?.() ?? 1
+    return { x: rect.x / zoom, y: rect.y / zoom, width: rect.width / zoom, height: rect.height / zoom }
+  }
+  const placement = () => {
+    const rect = spotlight()
+    if (!rect) return
+    const gap = 8
+    const width = Math.max(0, Math.min(400, store.size.width - gap * 2))
+    // The editor scrolls rather than growing past the surface, so its actions stay reachable.
+    const maxHeight = Math.max(0, store.size.height - gap * 2)
+    // Until the editor has been measured once, assume its default three-row height.
+    const height = Math.min(store.editorHeight || 176, maxHeight)
+    const left = Math.min(Math.max(gap, rect.x), Math.max(gap, store.size.width - width - gap))
+    const below = rect.y + rect.height + gap
+    const above = rect.y - gap - height
+    const top =
+      below + height <= store.size.height - gap
+        ? below
+        : above >= gap
+          ? above
+          : Math.max(gap, store.size.height - height - gap)
+    return { left, top, width, maxHeight }
+  }
   let surface: HTMLDivElement | undefined
   let addressDisplay: HTMLDivElement | undefined
   let frame: number | undefined
@@ -65,8 +164,62 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
         if (tab) props.browser.command({ type: "reload", tabID: tab.id })
       },
     },
+    // Ctrl+Shift+C copies in the terminal, so only the focused page claims it, as in Chromium.
+    {
+      id: "browser.inspect",
+      title: language.t("command.browser.inspect"),
+      category: language.t("command.category.view"),
+      disabled: !props.visible || !inspectable(),
+      onSelect: toggleInspect,
+    },
   ])
 
+  createEffect(() => {
+    onCleanup(
+      props.browser.onInspect((event) => {
+        if (event.active) {
+          setStore("picking", event.tabID)
+          return
+        }
+        if (store.picking === event.tabID) setStore("picking", undefined)
+        if (!event.element) return
+        const tab = state()
+        if (!props.onComment || tab?.id !== event.tabID || !props.visible || !store.visible) {
+          registration()?.highlight(event.tabID)
+          return
+        }
+        setStore("comment", {
+          tabID: tab.id,
+          url: tab.url,
+          title: tab.title,
+          generation: tab.generation,
+          element: event.element,
+          draft: "",
+        })
+      }),
+    )
+  })
+  // A picker or comment belongs to the page on screen; switching tabs or hiding the pane ends it.
+  createEffect(
+    on([() => state()?.id, () => props.visible && store.visible], ([id, shown]) => {
+      const tabID = untrack(() => store.picking)
+      if (tabID && (tabID !== id || !shown)) setPicking(tabID, false)
+      if (untrack(() => store.comment)?.tabID !== id) closeComment()
+    }),
+  )
+  // The page does not have focus while the picker waits for a hover, so Escape reaches the app.
+  createEventListener(
+    window,
+    "keydown",
+    (event) => {
+      if (event.key !== "Escape" || !store.picking) return
+      event.preventDefault()
+      event.stopPropagation()
+      setPicking(store.picking, false)
+    },
+    { capture: true },
+  )
+
   // The native page always paints above the DOM, so hide it while a floating
   // menu, select, or popover overlaps it. Tooltips are excluded.
   const covered = (rect: DOMRect) =>
@@ -129,7 +282,8 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
     // The desktop page hides blank and loading documents itself; only hide here
     // while the pane shows its own empty or failed state over the surface.
     const shown = props.visible && store.visible && !empty() && !failed() && !dialog.active
-    const cover = covered(rect)
+    // A comment on a picked element freezes the page so its editor can float above it.
+    const cover = store.comment?.tabID === tab.id || covered(rect)
     if (shown && cover) freeze(tab.id)
     if (!cover) thaw()
     const visible = shown && !(cover && store.snapshot?.tabID === tab.id)
@@ -202,6 +356,7 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
         () => store.visible,
         () => props.visible,
         () => state()?.id,
+        () => store.comment?.tabID,
         empty,
         failed,
         registration,
@@ -220,7 +375,13 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
   )
   // ResizeObserver runs after layout in the same frame; measuring here instead of on the next
   // animation frame keeps the native view in step with a pane drag.
-  createResizeObserver(() => surface, measure)
+  createResizeObserver(
+    () => surface,
+    (rect) => {
+      measure()
+      setStore("size", { width: rect.width, height: rect.height })
+    },
+  )
   createEventListener(window, "resize", () => schedule(300))
   // Floating content portals directly into <body>; keep measuring briefly so
   // the positioner has settled before the overlap check runs.
@@ -290,6 +451,39 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
             }
           />
         </Tooltip>
+        <Show when={props.onComment}>
+          <Tooltip
+            placement="top"
+            value={
+              <div class="flex flex-col gap-1">
+                <div class="flex items-center gap-2">
+                  <span>{language.t("session.browser.inspect")}</span>
+                  <Show when={command.keybindParts("browser.inspect").length > 0}>
+                    <Keybind keys={command.keybindParts("browser.inspect")} variant="neutral" />
+                  </Show>
+                </div>
+                {/* The page claims Chromium's picker chord itself; the app leaves it to the terminal. */}
+                <div class="flex items-center gap-2">
+                  <span>{language.t("session.browser.inspect.pageShortcut")}</span>
+                  <Keybind keys={formatKeybindParts("mod+shift+c", language.t)} variant="neutral" />
+                </div>
+              </div>
+            }
+          >
+            {/* The ghost variant sets the button color, so the active accent needs precedence over it. */}
+            <IconButton
+              {...button}
+              data-action="browser-inspect"
+              disabled={!inspectable()}
+              state={picking() ? "pressed" : undefined}
+              classList={{ "!text-v2-icon-icon-accent": picking() || !!store.comment }}
+              aria-pressed={picking()}
+              aria-label={language.t("session.browser.inspect")}
+              onClick={toggleInspect}
+              icon={<Icon name="select-element" size="small" />}
+            />
+          </Tooltip>
+        </Show>
         <form
           dir="ltr"
           class="relative min-w-0 flex-1 h-7 rounded-md hover:bg-v2-overlay-simple-overlay-hover focus-within:bg-v2-overlay-simple-overlay-hover text-12-regular"
@@ -378,7 +572,71 @@ export function SessionBrowserPane(props: { browser: ReturnType<typeof createSes
             {language.t("session.browser.suspended")}
           </p>
         </Show>
+        <Show when={store.comment?.tabID === state()?.id && store.comment}>
+          {(current) => (
+            <div
+              data-component="browser-comment"
+              class="absolute inset-0 z-10"
+              onPointerDown={(event) => {
+                // A click beside the editor dismisses it unless it would discard a draft.
+                if (event.target === event.currentTarget && !current().draft.trim()) closeComment()
+              }}
+            >
+              <Show when={spotlight()}>
+                {(rect) => (
+                  <div
+                    data-slot="browser-comment-spotlight"
+                    class="pointer-events-none absolute rounded-[2px]"
+                    style={{
+                      left: `${rect().x}px`,
+                      top: `${rect().y}px`,
+                      width: `${rect().width}px`,
+                      height: `${rect().height}px`,
+                    }}
+                  />
+                )}
+              </Show>
+              <Show when={placement()}>
+                {(position) => (
+                  <div
+                    ref={(element) =>
+                      createResizeObserver(element, (rect) => setStore("editorHeight", Math.ceil(rect.height)))
+                    }
+                    data-slot="browser-comment-editor"
+                    data-prevent-autofocus
+                    class="absolute overflow-y-auto rounded-[6px] shadow-[var(--v2-elevation-raised)]"
+                    style={{
+                      left: `${position().left}px`,
+                      top: `${position().top}px`,
+                      width: `${position().width}px`,
+                      "max-height": `${position().maxHeight}px`,
+                    }}
+                  >
+                    <LineCommentEditor
+                      value={current().draft}
+                      onInput={(value) => setStore("comment", "draft", value)}
+                      onCancel={closeComment}
+                      onSubmit={submitComment}
+                      mention={props.mention}
+                      selection={
+                        <span class="flex min-w-0 items-center gap-1" dir="ltr">
+                          <Icon name="select-element" size="small" class="shrink-0" />
+                          <span class="min-w-0 truncate leading-[var(--line-height-tight)]">
+                            {current().element.label}
+                          </span>
+                        </span>
+                      }
+                    />
+                  </div>
+                )}
+              </Show>
+            </div>
+          )}
+        </Show>
       </div>
+      <p class="sr-only" role="status" aria-live="polite">
+        {picking() ? language.t("session.browser.inspect.active") : ""}
+      </p>
     </aside>
   )
 }

packages/app/src/session/commands/fork-dialog.tsx

@@ -9,6 +9,7 @@ import { showToast } from "@/shell/notifications/toast"
 import { useLanguage } from "@/runtime/i18n/language"
 import { useServerSDK } from "@/runtime/server/client"
 import { base64Encode } from "@opencode/util/encode"
+import { commentContextItem } from "@/composer/comment-note"
 import { extractPromptComments, extractPromptFromMessage } from "@/composer/prompt"
 import { useWorkspaceLocation } from "@/workspaces/location"
 import { useServer } from "@/runtime/server/current"
@@ -75,16 +76,7 @@ export const DialogFork: Component = () => {
         dialog.close()
         const target = prompt.capture({ dir, id: forked.id })
         target.set(restored)
-        target.context.replaceComments(
-          extractPromptComments(message).map((comment) => ({
-            type: "file",
-            path: comment.path,
-            selection: comment.selection,
-            comment: comment.comment,
-            preview: comment.preview,
-            commentOrigin: comment.origin,
-          })),
-        )
+        target.context.replaceComments(extractPromptComments(message).map(commentContextItem))
         navigate(sessionHref(server.key, forked.id))
       })
       .catch((err: unknown) => {

packages/app/src/session/composer/region.tsx

@@ -18,6 +18,7 @@ import { useWorkspaceLocation } from "@/workspaces/location"
 import { requireServerKey, sessionHref } from "@/shell/routes/session"
 import { useComposerCommands } from "@/composer/commands"
 import { useSessionCommands } from "../commands/use-session-commands"
+import type { createSessionBrowser } from "../browser/model"
 import type { SessionModel } from "../model"
 import type { SessionScreenLayout } from "../screen-layout"
 import { syncPromptModel, syncSessionModel } from "../session-model-helpers"
@@ -34,6 +35,7 @@ export function createActiveSessionRegion(input: {
   screen: SessionScreenLayout
   timeline: SessionTimelineInteraction
   visible: Accessor<boolean>
+  browser: Pick<ReturnType<typeof createSessionBrowser>, "reveal">
 }) {
   const command = useCommand()
   const dialog = useDialog()
@@ -46,6 +48,7 @@ export function createActiveSessionRegion(input: {
   const state = createSessionRequestModel()
   const controls = createComposerControls({
     sessionKey: input.session.identity.sessionKey,
+    browser: { reveal: input.browser.reveal },
   })
   let promptRef: HTMLDivElement | undefined
 

packages/app/src/session/files/session-side-panel.tsx

@@ -29,6 +29,7 @@ import { SessionContextTab } from "@/session/files/session-context-tab"
 import { SortableTab } from "@/session/files/tab"
 import { OpenInAppButton } from "@/session/files/open-in-app-button"
 import { useCommand } from "@/shell/commands/command"
+import { useComposerState } from "@/composer/persistence"
 import { useFile, type SelectedLineRange } from "@/workspaces/files/model"
 import { useLanguage } from "@/runtime/i18n/language"
 import { useLayout } from "@/shell/state/layout"
@@ -80,6 +81,7 @@ export function SessionSidePanel(props: {
   const layout = useLayout()
   const settings = useSettings()
   const file = useFile()
+  const prompt = useComposerState()
   const language = useLanguage()
   const command = useCommand()
   const sdk = useWorkspaceLocation()
@@ -614,6 +616,10 @@ export function SessionSidePanel(props: {
                           <SessionBrowserPane
                             browser={props.browser}
                             visible={reviewOpen() && isSessionBrowserTab(activeTab())}
+                            mention={{ items: file.searchFilesAndDirectories }}
+                            onComment={(comment) =>
+                              prompt.context.add({ type: "browser", ...comment, commentID: crypto.randomUUID() })
+                            }
                           />
                         </div>
                       </Show>

packages/app/src/session/revert.ts

@@ -4,6 +4,7 @@ import { useData } from "@/runtime/server/current"
 import { useServerSDK } from "@/runtime/server/client"
 import { useWorkspaceLocation } from "@/workspaces/location"
 import { useLanguage } from "@/runtime/i18n/language"
+import { commentContextItem } from "@/composer/comment-note"
 import { extractPromptComments, extractPromptFromMessage } from "@/composer/prompt"
 import { showToast } from "@/shell/notifications/toast"
 import type { SessionModel } from "./model"
@@ -34,16 +35,7 @@ export function createSessionRevert(input: {
         directory: location().directory,
       }),
     )
-    target.context.replaceComments(
-      extractPromptComments(message).map((comment) => ({
-        type: "file",
-        path: comment.path,
-        selection: comment.selection,
-        comment: comment.comment,
-        preview: comment.preview,
-        commentOrigin: comment.origin,
-      })),
-    )
+    target.context.replaceComments(extractPromptComments(message).map(commentContextItem))
   }
 
   const stage = async (message: SessionMessageUser, previous: SessionMessageUser | undefined) => {

packages/app/src/session/screen.tsx

@@ -178,6 +178,7 @@ function SessionScreenContent(props: { session: SessionModel; browser: ReturnTyp
     screen,
     timeline,
     visible: conversationVisible,
+    browser,
   })
   useUsageExceededDialogs()