docs(www): add Fledge Alpha Free to Console models (#52896)

Co-authored-by: Test User <test@test.com>

.github/workflows/nix-eval.yml

@@ -2,9 +2,9 @@ name: nix-eval
 
 on:
   push:
-    branches: [dev]
+    branches: [dev, v2]
   pull_request:
-    branches: [dev]
+    branches: [dev, v2]
   workflow_dispatch:
 
 concurrency:

bun.lock

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

nix/desktop.nix

@@ -13,7 +13,12 @@
   opencode,
 }:
 let
-  electron = callPackage ./electron.nix { };
+  electronPin =
+    (lib.pipe ../packages/desktop/package.json [
+      builtins.readFile
+      builtins.fromJSON
+    ]).devDependencies.electron;
+  electron = callPackage ./electron.nix { inherit electronPin; };
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "opencode-desktop";
@@ -66,7 +71,7 @@ stdenv.mkDerivation (finalAttrs: {
     ''
     # https://github.com/electron/electron/issues/31121
     # mac builds use a .app bundle which doesnt have this issue
-    + lib.optionalString stdenv.isLinux ''
+    + lib.optionalString stdenv.hostPlatform.isLinux ''
       substituteInPlace \
         packages/desktop/src/main/windows/appearance.ts \
         packages/desktop/src/main/service/desktop-cli.ts \
@@ -74,6 +79,7 @@ stdenv.mkDerivation (finalAttrs: {
     '';
 
   preBuild = ''
+    echo "electron ${electron.version} from nixpkgs ${lib.version}, package.json pins ${electronPin}"
     cp -r "${electron.dist}" $HOME/.electron-dist
     chmod -R u+w $HOME/.electron-dist
 
@@ -89,8 +95,15 @@ stdenv.mkDerivation (finalAttrs: {
 
     export OPENCODE_CLI_DIST="$TMPDIR/desktop-cli"
     cli_package=$(bun -e 'import { getCurrentCli } from "./scripts/utils.ts"; console.log(getCurrentCli().package.replace("@opencode/", ""))')
+    # copyBuiltCliToResources joins this dist with the npm package name getCurrentCli()
+    # reports, not the Nix build's name. It reads only .version from the manifest and
+    # writes it as opencode-cli.version beside the binary.
     mkdir -p "$OPENCODE_CLI_DIST/$cli_package/bin"
     cp ${lib.getExe opencode} "$OPENCODE_CLI_DIST/$cli_package/bin/opencode"
+    # OPENCODE_VERSION is what the bundled CLI prints for --version, so the manifest
+    # and the executable cannot drift.
+    bun -e 'await Bun.write(process.argv[1], JSON.stringify({ version: process.env.OPENCODE_VERSION }) + "\n")' \
+      "$OPENCODE_CLI_DIST/$cli_package/package.json"
 
     bun run build
     npx electron-builder --dir \
@@ -138,6 +151,13 @@ stdenv.mkDerivation (finalAttrs: {
     "libc.musl-x86_64.so.1"
   ];
 
+  passthru = {
+    # electronVersion is what ships; electronPin is what packages/desktop/package.json
+    # asks for. They differ whenever nixpkgs carries no release of the pinned minor.
+    electronVersion = electron.version;
+    inherit electronPin;
+  };
+
   meta = {
     description = "OpenCode Desktop App";
     mainProgram = "opencode-desktop";

nix/electron.nix

@@ -1,12 +1,10 @@
-{ callPackage, path }:
+{ lib, pkgs, electronPin }:
 let
-  version = (builtins.fromJSON (builtins.readFile ../packages/desktop/package.json)).devDependencies.electron;
+  # Nixpkgs owns the release hashes, so bumping the pin no longer means editing this repo. Only the
+  # major is delegated, so what gets built trails the pin whenever nixpkgs has not shipped it yet.
+  # That is safe: the bundle ships one native addon, node-pty's Node-API prebuild, and
+  # only the win32 WSL runtime loads it, so nothing in the main process binds the
+  # Electron ABI.
+  major = lib.versions.major electronPin;
 in
-(callPackage (path + "/pkgs/development/tools/electron/binary/generic.nix") { }) version {
-  # Electron 42.10.1 SHASUMS256.txt; update with the desktop package version.
-  aarch64-linux = "20e68d6c4e47f3ebf59de7c6b1f8b8bec6a6ebda6a451132f9b465f3f13ce467";
-  x86_64-linux = "2452b27112d92387471fa2488aafac85d79ea3f2ee1216c0abd5150d6c12362b";
-  aarch64-darwin = "ac7194a3dfd81930ba35355c01620262c1254752859b42dcb8f4b9e4d174a871";
-  # fetchzip hashes the unpacked headers, not the release tarball.
-  headers = "sha256-4eUy3BZVvxTl7KUOsxio7769lL6ag/ecbeK+qLURWMI=";
-}
+pkgs."electron_${major}-bin" or (throw "nixpkgs ${lib.version} carries no prebuilt electron ${major}: run `nix flake update nixpkgs`, or pin a major nixpkgs still carries")

nix/hashes.json

@@ -1,7 +1,7 @@
 {
   "nodeModules": {
-    "x86_64-linux": "sha256-g3k0cAFGqzmRYlcIkg1NDvlx1WxHYhnYPL0/a8E+qTg=",
-    "aarch64-linux": "sha256-a+3ymqdxOONGe2Tpq4GUccl1b+Dwzxlb9LFXgE1gZ+0=",
-    "aarch64-darwin": "sha256-h8xIzuMmaWfJqjHCO74xUDCWNKQLFrIGoKYZ+2TauYc="
+    "x86_64-linux": "sha256-EEBz2IQ14YPShAzY13zpZ7btq/EuSw86pZ6nrizc9BI=",
+    "aarch64-linux": "sha256-X7om4U4OlKL4OddEMcyKL+1DCQXc9/f1xzzopE16Zmk=",
+    "aarch64-darwin": "sha256-3bejEuX3AGv4SR/16O8KjNSO2t9WDaWCHRbBXsJ6z8A="
   }
 }

nix/opencode.nix

@@ -12,7 +12,7 @@
   installShellFiles,
   versionCheckHook,
   writableTmpDirAsHomeHook,
-  node_modules ? callPackage ./node-modules.nix { },
+  node_modules ? callPackage ./node_modules.nix { },
 }:
 stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "opencode";
@@ -85,14 +85,30 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   '';
 
   postInstall = lib.optionalString (stdenvNoCC.buildPlatform.canExecute stdenvNoCC.hostPlatform) ''
-    # trick yargs into also generating zsh completions
+    # v2 dropped the `completion` subcommand; --completions is the global flag.
+    # --completions also accepts sh, which emits the same script as bash.
+    # staged to files, substitute below rejects anything that is not a regular file
+    $out/bin/opencode --completions bash > opencode.bash
+    $out/bin/opencode --completions zsh > _opencode
+    $out/bin/opencode --completions fish > opencode.fish
+
     installShellCompletion --cmd opencode \
-      --bash <($out/bin/opencode completion) \
-      --zsh <(SHELL=/bin/zsh $out/bin/opencode completion)
+      --bash opencode.bash \
+      --fish opencode.fish \
+      --zsh _opencode
+
+    # OPENCODE_CLI_NAME is a build-time define, so the opencode2 copies are
+    # renamed rather than regenerated. --replace-fail is a global literal
+    # substitution, so any lowercase opencode that later appears in a
+    # description or help text ships as opencode2 in the opencode2 copy.
+    substitute opencode.bash opencode2.bash --replace-fail opencode opencode2
+    substitute _opencode _opencode2 --replace-fail opencode opencode2
+    substitute opencode.fish opencode2.fish --replace-fail opencode opencode2
 
     installShellCompletion --cmd opencode2 \
-      --bash <($out/bin/opencode2 completion) \
-      --zsh <(SHELL=/bin/zsh $out/bin/opencode2 completion)
+      --bash opencode2.bash \
+      --fish opencode2.fish \
+      --zsh _opencode2
   '';
 
   nativeInstallCheckInputs = [

package.json

@@ -2,7 +2,7 @@
   "$schema": "https://json.schemastore.org/package.json",
   "name": "opencode",
   "description": "AI-powered development tool",
-  "version": "2.0.21",
+  "version": "2.0.22",
   "private": true,
   "type": "module",
   "packageManager": "bun@1.4.2",

packages/ai/README.md

@@ -1223,7 +1223,7 @@ const gateway = CloudflareAIGateway.configure({
 }).model("workers-ai/@cf/meta/llama-3.1-8b-instruct")
 ```
 
-Included LLM providers: OpenAI, Anthropic, Google (Gemini), Google Vertex, Amazon Bedrock, Azure OpenAI, Baseten, Cerebras, Cloudflare AI Gateway, Cloudflare Workers AI, DeepInfra, DeepSeek, Fireworks, Groq, Mistral, OpenRouter, TogetherAI, and xAI. Z.ai currently exposes image generation. Generic Chat Completions, Responses, and Anthropic Messages-compatible entrypoints support custom endpoints.
+Included LLM providers: OpenAI, Anthropic, Google (Gemini), Google Vertex, Amazon Bedrock, Azure OpenAI, Baseten, Cerebras, Cohere, Cloudflare AI Gateway, Cloudflare Workers AI, DeepInfra, DeepSeek, Fireworks, Groq, Mistral, OpenRouter, TogetherAI, and xAI. Z.ai currently exposes image generation. Generic Chat Completions, Responses, and Anthropic Messages-compatible entrypoints support custom endpoints.
 
 Each named provider owns its module, endpoint, authentication, and route setup. Providers with the same wire format compose the shared protocol directly:
 

packages/ai/package.json

@@ -1,6 +1,6 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
-  "version": "2.0.21",
+  "version": "2.0.22",
   "name": "@opencode/ai",
   "type": "module",
   "license": "MIT",

packages/ai/src/cache-policy.ts

@@ -38,6 +38,7 @@ const resolve = (policy: CachePolicy | undefined): CachePolicyObject => {
 // prefix caching, Gemini's implicit + out-of-band CachedContent). Skip the
 // whole policy pass for these — emitting hints would be harmless but pointless.
 const RESPECTS_INLINE_HINTS = new Set([
+  "alibaba-chat",
   "alibaba-messages",
   "anthropic-messages",
   "anthropic-compatible-messages",
@@ -55,11 +56,12 @@ const RESPECTS_INLINE_HINTS = new Set([
 // OpenRouter upstreams other than Anthropic and Alibaba Qwen cache without breakpoints. Gemini uses only the last
 // breakpoint, so a conversation-tail breakpoint writes a new cache every step and costs more than none. Qwen ignores
 // breakpoints on tool definitions and caches tools with the system prompt.
+const QWEN: CachePolicyObject = { system: true, messages: { tail: 1 } }
 const openRouterPolicy = (modelID: string): CachePolicyObject => {
   // `~anthropic/claude-sonnet-latest` style IDs are OpenRouter aliases for the latest model in a family.
   const id = modelID.replace(/^~/, "")
   if (id.startsWith("anthropic/")) return AUTO
-  if (id.startsWith("qwen/")) return { system: true, messages: { tail: 1 } }
+  if (id.startsWith("qwen/")) return QWEN
   return NONE
 }
 
@@ -171,7 +173,11 @@ export const applyCachePolicy = (request: LLMRequest): LLMRequest => {
   const policy =
     request.model.route.id === "openrouter" && (request.cache === undefined || request.cache === "auto")
       ? openRouterPolicy(request.model.id)
-      : resolve(request.cache)
+      : request.model.route.id === "alibaba-chat" && (request.cache === undefined || request.cache === "auto")
+        ? request.model.id.toLowerCase().startsWith("qwen")
+          ? QWEN
+          : NONE
+        : resolve(request.cache)
   if (!policy.tools && !policy.system && !policy.messages) return request
 
   const hint = makeHint(policy.ttlSeconds)

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

@@ -3,6 +3,7 @@ import { Protocol } from "../route/protocol.js"
 import type { LanguageModelCompatibility } from "../schema/index.js"
 import { OpenAIChat } from "./openai-chat.js"
 import { JsonObject, ProviderShared } from "./shared.js"
+import { cacheControl } from "./utils/cache.js"
 import { OpenResponsesOptions } from "./utils/open-responses-options.js"
 
 export type ReasoningEffort = OpenResponsesOptions.ReasoningEffort
@@ -68,7 +69,7 @@ export const protocol = Protocol.make({
     from: Effect.fn("AlibabaChat.fromRequest")(function* (req) {
       const opts = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))(req.providerOptions ?? {})
       return {
-        ...(yield* OpenAIChat.protocol.body.from(req)),
+        ...(yield* OpenAIChat.fromRequest(req, { cacheControl: cacheControl() })),
         enable_thinking: opts.enableThinking,
         // Alibaba also rejects an explicit budget that is not below `max_completion_tokens`.
         thinking_budget:

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

@@ -0,0 +1,334 @@
+import { Effect, Schema } from "effect"
+import { Route } from "../route/client.js"
+import { Endpoint } from "../route/endpoint.js"
+import { Framing } from "../route/framing.js"
+import { Protocol } from "../route/protocol.js"
+import { LLMEvent, Usage, type FinishReasonDetails, type LLMRequest } from "../schema/index.js"
+import { ProviderShared } from "./shared.js"
+import { Lifecycle } from "./utils/lifecycle.js"
+import { ToolStream } from "./utils/tool-stream.js"
+
+const ADAPTER = "cohere-chat"
+export const DEFAULT_BASE_URL = "https://api.cohere.com/v2"
+
+const Options = Schema.Struct({
+  thinking: Schema.optional(
+    Schema.Struct({
+      type: Schema.optional(Schema.Literals(["enabled", "disabled"])),
+      tokenBudget: Schema.optional(Schema.Int.check(Schema.isGreaterThan(0))),
+    }),
+  ),
+})
+export type ProviderOptionsInput = Schema.Schema.Type<typeof Options>
+
+const Content = Schema.Union([
+  Schema.Struct({ type: Schema.Literal("text"), text: Schema.String }),
+  Schema.Struct({ type: Schema.Literal("thinking"), thinking: Schema.String }),
+  Schema.Struct({ type: Schema.Literal("image_url"), image_url: Schema.Struct({ url: Schema.String }) }),
+])
+const ToolCall = Schema.Struct({
+  id: Schema.String,
+  type: Schema.Literal("function"),
+  function: Schema.Struct({ name: Schema.String, arguments: Schema.String }),
+})
+const Message = Schema.Struct({
+  role: Schema.Literals(["system", "user", "assistant", "tool"]),
+  content: Schema.optional(Schema.Union([Schema.String, Schema.Array(Content)])),
+  tool_calls: Schema.optional(Schema.Array(ToolCall)),
+  tool_call_id: Schema.optional(Schema.String),
+  tool_plan: Schema.optional(Schema.String),
+})
+const Body = Schema.Struct({
+  model: Schema.String,
+  messages: Schema.Array(Message),
+  stream: Schema.Literal(true),
+  tools: Schema.optional(
+    Schema.Array(
+      Schema.Struct({
+        type: Schema.Literal("function"),
+        function: Schema.Struct({
+          name: Schema.String,
+          description: Schema.optional(Schema.String),
+          parameters: Schema.Unknown,
+        }),
+      }),
+    ),
+  ),
+  tool_choice: Schema.optional(Schema.Literals(["NONE", "REQUIRED"])),
+  thinking: Schema.optional(Schema.Struct({ type: Schema.String, token_budget: Schema.optional(Schema.Number) })),
+  max_tokens: Schema.optional(Schema.Number),
+  temperature: Schema.optional(Schema.Number),
+  p: Schema.optional(Schema.Number),
+  k: Schema.optional(Schema.Number),
+  seed: Schema.optional(Schema.Number),
+  stop_sequences: Schema.optional(Schema.Array(Schema.String)),
+  frequency_penalty: Schema.optional(Schema.Number),
+  presence_penalty: Schema.optional(Schema.Number),
+})
+const TokenCounts = Schema.Struct({
+  input_tokens: Schema.optional(Schema.Number),
+  output_tokens: Schema.optional(Schema.Number),
+  reasoning_tokens: Schema.optional(Schema.Number),
+})
+const NativeUsage = Schema.Struct({
+  tokens: Schema.optional(TokenCounts),
+  billed_units: Schema.optional(TokenCounts),
+  cached_tokens: Schema.optional(Schema.Number),
+})
+const Event = Schema.Union([
+  Schema.Struct({ type: Schema.Literal("message-start") }),
+  Schema.Struct({
+    type: Schema.Literals(["content-start", "content-delta"]),
+    index: Schema.Number,
+    delta: Schema.Struct({
+      message: Schema.Struct({
+        content: Schema.Struct({ text: Schema.optional(Schema.String), thinking: Schema.optional(Schema.String) }),
+      }),
+    }),
+  }),
+  Schema.Struct({ type: Schema.Literal("content-end"), index: Schema.Number }),
+  Schema.Struct({
+    type: Schema.Literal("tool-plan-delta"),
+    delta: Schema.Struct({ message: Schema.Struct({ tool_plan: Schema.String }) }),
+  }),
+  Schema.Struct({
+    type: Schema.Literals(["tool-call-start", "tool-call-delta"]),
+    index: Schema.Number,
+    delta: Schema.Struct({
+      message: Schema.Struct({
+        tool_calls: Schema.Struct({
+          id: Schema.optional(Schema.String),
+          function: Schema.Struct({ name: Schema.optional(Schema.String), arguments: Schema.optional(Schema.String) }),
+        }),
+      }),
+    }),
+  }),
+  Schema.Struct({ type: Schema.Literal("tool-call-end"), index: Schema.Number }),
+  Schema.Struct({
+    type: Schema.Literal("message-end"),
+    delta: Schema.Struct({ finish_reason: Schema.String, usage: Schema.optional(NativeUsage) }),
+  }),
+  // Citation output is outside this basic chat surface.
+  Schema.Struct({ type: Schema.Literals(["citation-start", "citation-end"]) }),
+])
+type Event = typeof Event.Type
+type State = {
+  readonly lifecycle: Lifecycle.State
+  readonly tools: ToolStream.State<number>
+  readonly finished: boolean
+}
+
+const TOOL_CHOICE = { auto: undefined, none: "NONE", required: "REQUIRED", tool: "REQUIRED" } as const
+
+const fromRequest = Effect.fn("CohereChat.fromRequest")(function* (request: LLMRequest) {
+  const options = yield* ProviderShared.validateWith(Schema.decodeUnknownEffect(Options))(request.providerOptions ?? {})
+  const flattened = ProviderShared.flattenToolRequest(request)
+  const messages: (typeof Message.Type)[] = request.system.length
+    ? [
+        {
+          role: "system",
+          content:
+            request.system.length === 1
+              ? request.system[0].text
+              : request.system.map((part) => ({ type: "text", text: part.text })),
+        },
+      ]
+    : []
+  for (const message of flattened.request.messages) {
+    if (message.role === "system") {
+      messages.push({ role: "user", content: (yield* ProviderShared.wrappedSystemUpdate("Cohere Chat", message)).text })
+      continue
+    }
+    if (message.role === "tool") {
+      for (const part of message.content) {
+        if (part.type !== "tool-result")
+          return yield* ProviderShared.unsupportedContent("Cohere Chat", "tool", ["tool-result"])
+        if (part.result.type === "content" && part.result.value.some((item) => item.type === "file"))
+          return yield* ProviderShared.invalidRequest("Cohere Chat does not support file content in tool results")
+        messages.push({ role: "tool", tool_call_id: part.id, content: ProviderShared.toolResultText(part) })
+      }
+      continue
+    }
+    const content: (typeof Content.Type)[] = []
+    const calls: (typeof ToolCall.Type)[] = []
+    const plans: string[] = []
+    for (const part of message.content) {
+      if (part.type === "text") {
+        content.push({ type: "text", text: part.text })
+        continue
+      }
+      if (message.role === "assistant" && part.type === "reasoning") {
+        if (part.providerMetadata?.cohere?.toolPlan === true) plans.push(part.text)
+        else content.push({ type: "thinking", thinking: part.text })
+        continue
+      }
+      if (message.role === "assistant" && part.type === "tool-call") {
+        const args = ProviderShared.encodeJson(part.input)
+        calls.push({ id: part.id, type: "function", function: { name: part.name, arguments: args } })
+        continue
+      }
+      if (message.role === "user" && part.type === "media" && part.media.mediaType.startsWith("image/")) {
+        const url =
+          ProviderShared.mediaUrl(part.media) ??
+          (yield* ProviderShared.requireInlineMedia("Cohere Chat", part.media)).dataUrl
+        content.push({ type: "image_url", image_url: { url } })
+        continue
+      }
+      return yield* ProviderShared.unsupportedContent(
+        "Cohere Chat",
+        message.role,
+        message.role === "user" ? ["text", "media"] : ["text", "reasoning", "tool-call"],
+      )
+    }
+    messages.push({
+      role: message.role,
+      content: content.length ? content : undefined,
+      tool_calls: calls.length ? calls : undefined,
+      tool_plan: plans.length ? plans.join("") : undefined,
+    })
+  }
+  const selected = request.toolChoice?.type === "tool" ? request.toolChoice.name : undefined
+  const tools = selected === undefined ? flattened.tools : flattened.tools.filter((tool) => tool.name === selected)
+  if (selected !== undefined && tools.length === 0)
+    return yield* ProviderShared.invalidRequest("Cohere Chat tool choice must name an available tool")
+  if (tools.some((tool) => tool.native !== undefined))
+    return yield* ProviderShared.invalidRequest("Cohere Chat does not support provider-defined tools")
+  return {
+    model: request.model.id,
+    messages,
+    stream: true as const,
+    tools: tools.length
+      ? tools.map((tool) => ({
+          type: "function" as const,
+          function: { name: tool.name, description: tool.description, parameters: tool.inputSchema },
+        }))
+      : undefined,
+    tool_choice: TOOL_CHOICE[request.toolChoice?.type ?? "auto"],
+    thinking: options.thinking && {
+      type: options.thinking.type ?? "enabled",
+      // Cohere rejects budgets above max_tokens; fitting also leaves room for the answer.
+      token_budget:
+        options.thinking.tokenBudget === undefined
+          ? undefined
+          : ProviderShared.fitThinkingBudget(options.thinking.tokenBudget, request.generation?.maxTokens),
+    },
+    max_tokens: request.generation?.maxTokens,
+    temperature: request.generation?.temperature,
+    p: request.generation?.topP,
+    k: request.generation?.topK,
+    seed: request.generation?.seed,
+    stop_sequences: request.generation?.stop,
+    frequency_penalty: request.generation?.frequencyPenalty,
+    presence_penalty: request.generation?.presencePenalty,
+  }
+})
+
+const finishReason = (raw: string): FinishReasonDetails => {
+  switch (raw) {
+    case "COMPLETE":
+    case "STOP_SEQUENCE":
+      return { normalized: "stop", raw }
+    case "MAX_TOKENS":
+      return { normalized: "length", raw }
+    case "TOOL_CALL":
+      return { normalized: "tool-calls", raw }
+    case "ERROR":
+    case "TIMEOUT":
+      return { normalized: "error", raw }
+    default:
+      return { normalized: "unknown", raw }
+  }
+}
+
+const mapUsage = (usage: typeof NativeUsage.Type) =>
+  new Usage({
+    inputTokens: usage.tokens?.input_tokens,
+    outputTokens: usage.tokens?.output_tokens,
+    nonCachedInputTokens: ProviderShared.subtractTokens(usage.tokens?.input_tokens, usage.cached_tokens),
+    cacheReadInputTokens: usage.cached_tokens,
+    reasoningTokens: usage.tokens?.reasoning_tokens,
+    totalTokens: ProviderShared.totalTokens(usage.tokens?.input_tokens, usage.tokens?.output_tokens, undefined),
+    providerMetadata: { cohere: usage },
+  })
+
+// Lifecycle deltas open blocks on demand and ends are no-ops for closed blocks, so content-start needs no handling.
+const step = Effect.fn("CohereChat.step")(function* (state: State, event: Event) {
+  const events: LLMEvent[] = []
+  switch (event.type) {
+    case "message-start":
+      return [{ ...state, lifecycle: Lifecycle.stepStart(state.lifecycle, events) }, events] as const
+    case "content-delta": {
+      const id = String(event.index)
+      const content = event.delta.message.content
+      const lifecycle =
+        content.thinking !== undefined
+          ? Lifecycle.reasoningDelta(state.lifecycle, events, id, content.thinking)
+          : Lifecycle.textDelta(state.lifecycle, events, id, content.text ?? "")
+      return [{ ...state, lifecycle }, events] as const
+    }
+    case "content-end": {
+      const id = String(event.index)
+      const lifecycle = Lifecycle.textEnd(Lifecycle.reasoningEnd(state.lifecycle, events, id), events, id)
+      return [{ ...state, lifecycle }, events] as const
+    }
+    case "tool-plan-delta": {
+      const plan = event.delta.message.tool_plan
+      const lifecycle = Lifecycle.reasoningDelta(state.lifecycle, events, "tool-plan", plan, {
+        cohere: { toolPlan: true },
+      })
+      return [{ ...state, lifecycle }, events] as const
+    }
+    case "tool-call-start":
+    case "tool-call-delta": {
+      const call = event.delta.message.tool_calls
+      const result = ToolStream.appendOrStart(
+        ADAPTER,
+        state.tools,
+        event.index,
+        { id: call.id, name: call.function.name, text: call.function.arguments ?? "" },
+        "Cohere tool call is missing id or name",
+      )
+      if (ToolStream.isError(result)) return yield* result
+      return [{ ...state, tools: result.tools }, result.events] as const
+    }
+    case "tool-call-end": {
+      const result = yield* ToolStream.finish(ADAPTER, state.tools, event.index)
+      return [{ ...state, tools: result.tools }, result.events ?? []] as const
+    }
+    case "message-end": {
+      const pending = yield* ToolStream.finishAll(ADAPTER, state.tools)
+      events.push(...pending.events)
+      const lifecycle = Lifecycle.finish(state.lifecycle, events, {
+        reason: finishReason(event.delta.finish_reason),
+        usage: event.delta.usage && mapUsage(event.delta.usage),
+      })
+      return [{ tools: pending.tools, lifecycle, finished: true }, events] as const
+    }
+    default:
+      return [state, events] as const
+  }
+})
+
+export const protocol = Protocol.make({
+  id: ADAPTER,
+  body: { schema: Body, from: fromRequest },
+  stream: {
+    event: Protocol.jsonEvent(Event),
+    initial: (): State => ({ lifecycle: Lifecycle.initial(), tools: ToolStream.empty(), finished: false }),
+    step,
+    terminal: (event) => event.type === "message-end",
+    onHalt: (state) =>
+      state.finished
+        ? Effect.succeed([])
+        : Effect.fail(ProviderShared.eventError(ADAPTER, "Cohere stream ended without message-end")),
+  },
+})
+export const route = Route.make({
+  id: ADAPTER,
+  provider: "cohere",
+  providerMetadataKey: "cohere",
+  protocol,
+  endpoint: Endpoint.path("/chat", { baseURL: DEFAULT_BASE_URL }),
+  framing: Framing.sse,
+})
+export * as CohereChat from "./cohere-chat.js"

packages/ai/src/protocols/gemini.ts

@@ -475,7 +475,7 @@ const fromRequest = Effect.fn("Gemini.fromRequest")(function* (request: LLMReque
     safetySettings: options.safetySettings,
     serviceTier: options.serviceTier,
     systemInstruction:
-      request.system.length === 0 ? undefined : { parts: [{ text: ProviderShared.joinText(request.system) }] },
+      request.system.length === 0 ? undefined : { parts: request.system.map((part) => ({ text: part.text })) },
     tools: hasTools
       ? [
           {

packages/ai/src/protocols/index.ts

@@ -1,5 +1,6 @@
 export * as AnthropicMessages from "./anthropic-messages.js"
 export * as BedrockConverse from "./bedrock-converse.js"
+export * as CohereChat from "./cohere-chat.js"
 export * as Gemini from "./gemini.js"
 export * as MistralChat from "./mistral-chat.js"
 export * as OpenAIChat from "./openai-chat.js"

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

@@ -68,7 +68,10 @@ const MistralAssistantToolCall = Schema.Struct({
 type MistralAssistantToolCall = Schema.Schema.Type<typeof MistralAssistantToolCall>
 
 const MistralMessage = Schema.Union([
-  Schema.Struct({ role: Schema.Literal("system"), content: Schema.String }),
+  Schema.Struct({
+    role: Schema.Literal("system"),
+    content: Schema.Union([Schema.String, Schema.Array(MistralTextContent)]),
+  }),
   Schema.Struct({
     role: Schema.Literal("user"),
     content: Schema.Union([Schema.String, Schema.Array(MistralUserContent)]),
@@ -335,7 +338,17 @@ const lowerToolResults = Effect.fn("MistralChat.lowerToolResults")(function* (
 const lowerMessages = Effect.fn("MistralChat.lowerMessages")(function* (request: LLMRequest) {
   const normalizeID = MistralToolID.normalizer(request)
   const messages: MistralMessage[] =
-    request.system.length === 0 ? [] : [{ role: "system", content: ProviderShared.joinText(request.system) }]
+    request.system.length === 0
+      ? []
+      : [
+          {
+            role: "system",
+            content:
+              request.system.length === 1
+                ? request.system[0].text
+                : request.system.map((part) => ({ type: "text", text: part.text })),
+          },
+        ]
   for (const message of request.messages) {
     if (message.role === "system") {
       const update = yield* ProviderShared.wrappedSystemUpdate("Mistral Chat", message)

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

@@ -14,7 +14,6 @@ import {
   ProviderInternalError,
   UnknownProviderError,
   Usage,
-  type FinishReason,
   type FinishReasonDetails,
   type CacheHint,
   type LLMRequest,
@@ -46,12 +45,6 @@ const OpenAIChatCacheControl = Schema.Struct({
 })
 type OpenAIChatCacheControl = Schema.Schema.Type<typeof OpenAIChatCacheControl>
 
-const OpenAIChatFunction = Schema.Struct({
-  name: Schema.String,
-  description: Schema.String,
-  parameters: JsonObject,
-})
-
 const OpenAIChatTool = Schema.Struct({
   type: Schema.tag("function"),
   function: Schema.Struct({

packages/ai/src/provider-error.ts

@@ -55,7 +55,13 @@ const patterns = [
 
 const payloadPatterns = [/request entity too large/i, /payload too large/i, /request too large/i]
 
-const exclusions = [/^(throttling error|service unavailable):/i, /rate limit/i, /too many requests/i]
+const exclusions = [
+  /^(throttling error|service unavailable):/i,
+  /rate limit/i,
+  /too many requests/i,
+  // Cohere reports an output limit above the model maximum as "too many tokens"; compaction cannot fix it.
+  /max[_ ]tokens must be less than/i,
+]
 
 export const isContextOverflow = (message: string) =>
   !exclusions.some((pattern) => pattern.test(message)) &&

packages/ai/src/providers/cohere.ts

@@ -0,0 +1,66 @@
+import { CohereChat } from "../protocols/cohere-chat.js"
+import { OpenAIChat } from "../protocols/openai-chat.js"
+import { Route, type RouteDefaultsInput } from "../route/client.js"
+import { Endpoint } from "../route/endpoint.js"
+import { AuthOptions, type ProviderAuthOption } from "../route/auth-options.js"
+import { ProviderID, type ModelID, type OpenString } from "../schema/index.js"
+import type { ProviderPackage } from "../provider-package.js"
+
+export const id = ProviderID.make("cohere")
+const COMPATIBILITY_BASE_URL = "https://api.cohere.ai/compatibility/v1"
+export type ChatOptionsInput = { readonly reasoningEffort?: OpenString<"none" | "high"> }
+export type ProviderOptions = CohereChat.ProviderOptionsInput & ChatOptionsInput
+export type LanguageModelOptions = Omit<RouteDefaultsInput, "providerOptions"> &
+  ProviderAuthOption<"optional"> & {
+    readonly baseURL?: string
+    readonly providerOptions?: ProviderOptions
+  }
+export type Settings<Options = CohereChat.ProviderOptionsInput> = ProviderPackage.Settings &
+  Options & { readonly apiKey?: string; readonly baseURL?: string }
+
+export const route = CohereChat.route
+export const chatRoute = Route.make({
+  id: "cohere-chat-completions",
+  provider: id,
+  providerMetadataKey: "cohere",
+  protocol: OpenAIChat.protocol,
+  endpoint: Endpoint.path("/chat/completions", { baseURL: COMPATIBILITY_BASE_URL }),
+  framing: OpenAIChat.framing,
+})
+export const routes = [route, chatRoute]
+
+export const configure = (input: LanguageModelOptions = {}) => {
+  const { apiKey: _apiKey, auth: _auth, baseURL, ...defaults } = input
+  const auth = AuthOptions.bearer(input, "COHERE_API_KEY")
+  const native = route.with({ ...defaults, auth, endpoint: { baseURL: baseURL ?? CohereChat.DEFAULT_BASE_URL } })
+  const chat = chatRoute.with({ ...defaults, auth, endpoint: { baseURL: baseURL ?? COMPATIBILITY_BASE_URL } })
+  return {
+    id,
+    model: (modelID: string | ModelID) => native.model<CohereChat.ProviderOptionsInput>({ id: modelID }),
+    chat: (modelID: string | ModelID) =>
+      chat.model<ChatOptionsInput>({
+        id: modelID,
+        compatibility: {
+          maxTokensField: "max_tokens",
+          supportsStore: false,
+          supportsUsageInStreaming: true,
+          reasoningField: "reasoning_content",
+          supportsStrictMode: false,
+        },
+      }),
+    configure,
+  }
+}
+export const provider = configure()
+export const model: ProviderPackage.Definition<Settings, CohereChat.ProviderOptionsInput>["model"] = (
+  modelID,
+  { apiKey, baseURL, body, headers, ...providerOptions },
+) =>
+  configure({
+    apiKey,
+    baseURL,
+    headers,
+    http: body === undefined ? undefined : { body: { ...body } },
+    providerOptions,
+  }).model(modelID)
+export * as Cohere from "./cohere.js"

packages/ai/src/providers/cohere/chat.ts

@@ -0,0 +1,16 @@
+import type { ProviderPackage } from "../../provider-package.js"
+import { Cohere } from "../cohere.js"
+
+export type Settings = Cohere.Settings<Cohere.ChatOptionsInput>
+
+export const model: ProviderPackage.Definition<Settings, Cohere.ChatOptionsInput>["model"] = (
+  modelID,
+  { apiKey, baseURL, body, headers, ...providerOptions },
+) =>
+  Cohere.configure({
+    apiKey,
+    baseURL,
+    headers,
+    http: body === undefined ? undefined : { body: { ...body } },
+    providerOptions,
+  }).chat(modelID)

packages/ai/src/providers/index.ts

@@ -9,6 +9,7 @@ export * as Baseten from "./baseten.js"
 export * as BlackForestLabs from "./black-forest-labs.js"
 export * as Cartesia from "./cartesia.js"
 export * as Cerebras from "./cerebras.js"
+export * as Cohere from "./cohere.js"
 export * as CloudflareAIGateway from "./cloudflare-ai-gateway.js"
 export * as CloudflareWorkersAI from "./cloudflare-workers-ai.js"
 export * as DeepInfra from "./deepinfra.js"

packages/ai/src/route/executor.ts

@@ -159,6 +159,15 @@ const nativeTransportFailure = (error: unknown) => {
   return failure
 }
 
+// HTTP hooks re-wrap response bodies, so a read failure can arrive as an HttpClientError caused by
+// another HttpClientError. The innermost cause carries the native failure.
+const rootCause = (error: unknown): unknown =>
+  HttpClientError.isHttpClientError(error) && "cause" in error.reason && error.reason.cause !== undefined
+    ? rootCause(error.reason.cause)
+    : error
+
+const CONNECTION_LOST = "Connection lost while reading the response"
+
 const httpError = (input: {
   readonly error: unknown
   readonly request: HttpClientRequest.HttpClientRequest
@@ -179,20 +188,21 @@ const httpError = (input: {
       }),
     })
 
-  const source =
-    HttpClientError.isHttpClientError(input.error) && "cause" in input.error.reason
-      ? (input.error.reason.cause ?? input.error)
-      : input.error
+  const source = rootCause(input.error)
   const native = nativeTransportFailure(source)
   const code = native?.code
-  const raw = native?.message ?? (input.error instanceof Error ? input.error.message : undefined)
-  const detail = raw
-  const message = code && detail && !detail.includes(code) ? `${code}: ${detail}` : detail
+  const detail =
+    code && native?.message && !native.message.includes(code) ? `${code}: ${native.message}` : native?.message
+  const message = detail ?? (input.error instanceof Error ? input.error.message : undefined)
 
   if (Cause.isTimeoutError(input.error) || Cause.isTimeoutError(source))
     return transportError({ message: message ?? "HTTP transport timed out", code: code ?? "Timeout" })
   if (!HttpClientError.isHttpClientError(input.error))
     return transportError({ message: message ?? "HTTP transport failed", code })
+  // Effect reports every response body read failure as a DecodeError, but the raw byte stream decodes
+  // nothing: provider output parsing happens later and fails as InvalidProviderOutput.
+  if (input.operation === "read" && input.error.reason._tag === "DecodeError")
+    return transportError({ message: detail ? `${CONNECTION_LOST}: ${detail}` : CONNECTION_LOST, code })
   if (input.error.reason._tag === "TransportError") {
     return transportError({
       message: message ?? input.error.reason.description ?? "HTTP transport failed",

packages/ai/src/route/transport/http.ts

@@ -1,11 +1,19 @@
-import { Effect } from "effect"
+import { Clock, Duration, Effect, Stream } from "effect"
 import { Headers, HttpClientRequest } from "effect/unstable/http"
 import { Auth } from "../auth.js"
 import { render as renderEndpoint } from "../endpoint.js"
 import { Framing } from "../framing.js"
 import type { HttpMiddleware, Transport, TransportPrepareInput } from "./index.js"
 import * as ProviderShared from "../../protocols/shared.js"
-import { mergeJsonRecords, type LLMRequest } from "../../schema/index.js"
+import {
+  AIError,
+  DEFAULT_HTTP_TIMEOUT_MS,
+  mergeJsonRecords,
+  TransportError,
+  type HttpContext,
+  type HttpTimeout,
+  type LLMRequest,
+} from "../../schema/index.js"
 import { RequestExecutor } from "../executor.js"
 
 export type JsonRequestInput<Body> = TransportPrepareInput<Body>
@@ -87,17 +95,53 @@ export const httpJson = <Body, Frame>(input: HttpJsonInput<Body, Frame>): HttpJs
         middleware: prepareInput.middleware,
       }
     }),
-  execute: (prepared, _request, runtime) =>
+  execute: (prepared, request, runtime) =>
     Effect.gen(function* () {
-      const response = yield* runtime.http.execute(prepared.request, prepared.middleware)
+      const timeout = (operation: "request" | "read", message: string, http?: HttpContext) =>
+        new AIError({
+          reason: new TransportError({
+            message,
+            transport: "http",
+            operation,
+            code: "Timeout",
+            url: prepared.request.url,
+            http,
+          }),
+        })
+      const started = yield* Clock.currentTimeMillis
+      // Unlike the header and chunk limits, the whole-request budget has no default.
+      const total = request.http?.timeout ? Duration.millis(request.http.timeout) : Duration.infinity
+      const response = yield* runtime.http.execute(prepared.request, prepared.middleware).pipe(
+        Effect.timeoutOrElse({
+          duration: Duration.min(timeoutDuration(request.http?.headerTimeout), total),
+          orElse: () => timeout("request", "Timed out waiting for response headers"),
+        }),
+      )
+      const http = RequestExecutor.responseHttp(response)
+      const remaining = Duration.subtract(total, Duration.millis((yield* Clock.currentTimeMillis) - started))
       return {
-        frames: prepared.framing.frame(RequestExecutor.responseStream(response)),
-        http: RequestExecutor.responseHttp(response),
+        frames: prepared.framing.frame(
+          RequestExecutor.responseStream(response).pipe(
+            Stream.timeoutOrElse({
+              duration: timeoutDuration(request.http?.chunkTimeout),
+              orElse: () => Stream.fail(timeout("read", "Timed out waiting for response data", http)),
+            }),
+            Stream.interruptWhen(
+              Effect.sleep(remaining).pipe(
+                Effect.andThen(Effect.fail(timeout("read", "Timed out waiting for the response to complete", http))),
+              ),
+            ),
+          ),
+        ),
+        http,
         body: prepared.framing.body,
       }
     }),
 })
 
+const timeoutDuration = (value: HttpTimeout | undefined) =>
+  value === false ? Duration.infinity : Duration.millis(value ?? DEFAULT_HTTP_TIMEOUT_MS)
+
 export const sseJson = {
   id: "http-json/sse",
   with: <Body>() => httpJson<Body, string>({ framing: Framing.sse }),

packages/ai/src/schema/options.ts

@@ -48,10 +48,23 @@ export const mergeProviderOptions = (
   ...items: ReadonlyArray<ProviderOptions | undefined>
 ): ProviderOptions | undefined => mergeJsonRecords(...items)
 
+/** Milliseconds for an HTTP timeout, or `false` to disable it. */
+export const HttpTimeout = Schema.Union([Schema.Number.check(Schema.isGreaterThan(0)), Schema.Literal(false)])
+export type HttpTimeout = Schema.Schema.Type<typeof HttpTimeout>
+
+/** Applied to `headerTimeout` and `chunkTimeout` when a request leaves them unset. */
+export const DEFAULT_HTTP_TIMEOUT_MS = 300_000
+
 export class HttpOptions extends Schema.Class<HttpOptions>("AI.HttpOptions")({
   body: Schema.optional(JsonSchema),
   headers: Schema.optional(Schema.Record(Schema.String, Schema.String)),
   query: Schema.optional(Schema.Record(Schema.String, Schema.String)),
+  /** Time allowed for the whole request, from send until the response completes. Unbounded when unset. */
+  timeout: Schema.optional(HttpTimeout),
+  /** Time allowed for response headers to arrive. */
+  headerTimeout: Schema.optional(HttpTimeout),
+  /** Time allowed between streamed response chunks once headers have arrived. */
+  chunkTimeout: Schema.optional(HttpTimeout),
 }) {}
 
 export namespace HttpOptions {
@@ -70,8 +83,12 @@ export const mergeHttpOptions = (...items: ReadonlyArray<HttpOptions | undefined
   const body = mergeJsonRecords(...items.map((item) => item?.body))
   const headers = mergeStringRecords(...items.map((item) => item?.headers))
   const query = mergeStringRecords(...items.map((item) => item?.query))
-  if (!body && !headers && !query) return undefined
-  return new HttpOptions({ body, headers, query })
+  const timeout = items.findLast((item) => item?.timeout !== undefined)?.timeout
+  const headerTimeout = items.findLast((item) => item?.headerTimeout !== undefined)?.headerTimeout
+  const chunkTimeout = items.findLast((item) => item?.chunkTimeout !== undefined)?.chunkTimeout
+  if (!body && !headers && !query && timeout === undefined && headerTimeout === undefined && chunkTimeout === undefined)
+    return undefined
+  return new HttpOptions({ body, headers, query, timeout, headerTimeout, chunkTimeout })
 }
 
 export class GenerationOptions extends Schema.Class<GenerationOptions>("LLM.GenerationOptions")({

packages/ai/test/auth-options.types.ts

@@ -14,7 +14,6 @@ import * as GoogleVertexChat from "../src/providers/google-vertex-chat.js"
 import * as GoogleVertexMessages from "../src/providers/google-vertex-messages.js"
 import * as GoogleVertexResponses from "../src/providers/google-vertex-responses.js"
 import * as OpenAI from "../src/providers/openai.js"
-import * as OpenAICompatible from "../src/providers/openai-compatible.js"
 import * as OpenRouter from "../src/providers/openrouter.js"
 import * as XAI from "../src/providers/xai.js"
 

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

@@ -145,6 +145,59 @@ describe("applyCachePolicy", () => {
     }),
   )
 
+  it.effect("Alibaba chat caches the system and conversation tail without marking tools", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: Alibaba.configure({ region: "ap-southeast-1", apiKey: "test" }).chat("qwen3.8-max"),
+          system: "You are concise.",
+          tools: [{ name: "lookup", description: "Look up a value", inputSchema: { type: "object", properties: {} } }],
+          prompt: "hi",
+        }),
+      )
+
+      expect(prepared.body).toMatchObject({
+        tools: [{ type: "function", function: { name: "lookup" } }],
+        messages: [
+          {
+            role: "system",
+            content: [{ text: "You are concise.", cache_control: { type: "ephemeral" } }],
+          },
+          { role: "user", content: [{ text: "hi", cache_control: { type: "ephemeral" } }] },
+        ],
+      })
+      expect(prepared.body.tools?.[0]?.cache_control).toBeUndefined()
+    }),
+  )
+
+  it.effect("Alibaba chat omits automatic cache markers when cache is none", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: Alibaba.configure({ region: "ap-southeast-1", apiKey: "test" }).chat("qwen3.8-max"),
+          system: "You are concise.",
+          prompt: "hi",
+          cache: "none",
+        }),
+      )
+
+      expect(JSON.stringify(prepared.body)).not.toContain("cache_control")
+    }),
+  )
+
+  it.effect("Alibaba chat does not assume non-Qwen models support cache markers", () =>
+    Effect.gen(function* () {
+      const alibaba = Alibaba.configure({ region: "ap-southeast-1", apiKey: "test" })
+      for (const modelID of ["kimi-k3", "glm-5.2", "deepseek-v4-flash-0731", "MiniMax-M2.5"]) {
+        const prepared = yield* compileRequest(
+          LLM.request({ model: alibaba.chat(modelID), system: "You are concise.", prompt: "hi" }),
+        )
+
+        expect(JSON.stringify(prepared.body)).not.toContain("cache_control")
+      }
+    }),
+  )
+
   it.effect("'auto' emits Anthropic cache markers on Anthropic-compatible routes", () =>
     Effect.gen(function* () {
       const prepared = yield* compileRequest(

packages/ai/test/executor.test.ts

@@ -1,11 +1,17 @@
 import { describe, expect } from "bun:test"
 import { Deferred, Effect, Fiber, Layer, Ref, Stream } from "effect"
-import { Headers, HttpClientError, HttpClientRequest } from "effect/unstable/http"
-import { LLM, AIError, HttpContext, InvalidProviderOutputError, TransportError } from "../src/index.js"
-import { LLMClient, RequestExecutor, WebSocketTransport, type WebSocketChannelExecutor } from "../src/route.js"
+import { Headers, HttpClientError, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+import { LLM, AIError, HttpContext, InvalidProviderOutputError, TransportError, isRetryable } from "../src/index.js"
+import {
+  LLMClient,
+  RequestExecutor,
+  WebSocketTransport,
+  type HttpMiddleware,
+  type WebSocketChannelExecutor,
+} from "../src/route.js"
 import { route } from "../src/protocols/openai-chat.js"
 import { configure } from "../src/providers/openai.js"
-import { dynamicResponse, fixedResponse, handlerLayer, systemError } from "./lib/http.js"
+import { dynamicResponse, fixedResponse, handlerLayer, systemError, truncatedStream } from "./lib/http.js"
 import { deltaChunk } from "./lib/openai-chunks.js"
 import { sseEvents, sseRaw } from "./lib/sse.js"
 import { it } from "./lib/effect.js"
@@ -18,6 +24,8 @@ const secretRequest = HttpClientRequest.post("https://provider.test/v1/chat?api_
   HttpClientRequest.setHeaders(Headers.fromInput({ authorization: "Bearer header-secret-456" })),
 )
 
+const sseRequest = HttpClientRequest.post("https://provider.test/v1/messages")
+
 const expectAIError = (error: unknown) => {
   expect(error).toBeInstanceOf(AIError)
   if (!(error instanceof AIError)) throw new Error("expected AIError")
@@ -93,7 +101,9 @@ describe("RequestExecutor", () => {
       const error = yield* RequestExecutor.stream(executor, secretRequest).pipe(Stream.runDrain, Effect.flip)
 
       expectAIError(error)
-      expect(error.message).toBe("ECONNRESET: disconnected query-secret-123 header-secret-456")
+      expect(error.message).toBe(
+        "Connection lost while reading the response: ECONNRESET: disconnected query-secret-123 header-secret-456",
+      )
       expect(error.reason.http).toMatchObject({ status: 200, url: secretRequest.url })
       expect(error.reason.cause).toMatchObject({ code: "ECONNRESET" })
       expect(error.reason).toMatchObject({
@@ -123,7 +133,7 @@ describe("RequestExecutor", () => {
       const error = yield* RequestExecutor.stream(executor, secretRequest).pipe(Stream.runDrain, Effect.flip)
 
       expectAIError(error)
-      expect(error.message).toBe("ECONNRESET: socket closed")
+      expect(error.message).toBe("Connection lost while reading the response: ECONNRESET: socket closed")
       expect(error.reason.cause).toBeInstanceOf(TypeError)
       expect(error.reason).toMatchObject({
         _tag: "Transport",
@@ -144,6 +154,54 @@ describe("RequestExecutor", () => {
     ),
   )
 
+  it.effect("reports a connection lost mid-stream through middleware that re-wraps the body", () =>
+    Effect.gen(function* () {
+      const executor = yield* RequestExecutor.Service
+      const chunks: Array<Uint8Array> = []
+      // Session HTTP hooks hand plugins a web Response, so the body is re-wrapped around the original stream.
+      const rewrap: HttpMiddleware = (input, handler) =>
+        Effect.gen(function* () {
+          const response = yield* handler(input)
+          const body = yield* Stream.toReadableStreamEffect(response.stream)
+          return HttpClientResponse.fromWeb(
+            input,
+            new Response(body, { status: response.status, headers: response.headers }),
+          )
+        })
+      const error = yield* RequestExecutor.stream(executor, sseRequest, rewrap).pipe(
+        Stream.runForEach((chunk) => Effect.sync(() => chunks.push(chunk))),
+        Effect.flip,
+      )
+
+      expectAIError(error)
+      expect(new TextDecoder().decode(chunks[0])).toBe('data: {"type":"ping"}\n\n')
+      expect(error.message).toBe("Connection lost while reading the response: ECONNRESET: other side closed")
+      expect(error.reason.cause).toBeInstanceOf(TypeError)
+      expect(error.reason.http).toMatchObject({ status: 200 })
+      expect(error.reason).toMatchObject({ _tag: "Transport", operation: "read", code: "ECONNRESET" })
+      expect(isRetryable(error)).toBeTrue()
+    }).pipe(
+      Effect.provide(
+        truncatedStream(
+          ['data: {"type":"ping"}\n\n'],
+          new TypeError("terminated", { cause: systemError("ECONNRESET", "other side closed") }),
+        ),
+      ),
+    ),
+  )
+
+  it.effect("does not report a body read failure without a native cause as a decode error", () =>
+    Effect.gen(function* () {
+      const executor = yield* RequestExecutor.Service
+      const error = yield* RequestExecutor.stream(executor, sseRequest).pipe(Stream.runDrain, Effect.flip)
+
+      expectAIError(error)
+      expect(error.message).toBe("Connection lost while reading the response")
+      expect(error.reason).toMatchObject({ _tag: "Transport", operation: "read", code: undefined })
+      expect(isRetryable(error)).toBeTrue()
+    }).pipe(Effect.provide(truncatedStream(['data: {"type":"ping"}\n\n'], new DOMException("aborted", "AbortError")))),
+  )
+
   it.effect("preserves middleware error messages", () =>
     Effect.gen(function* () {
       const executor = yield* RequestExecutor.Service

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

@@ -10,7 +10,7 @@
       "usage"
     ],
     "name": "alibaba-chat/qwen-3-7-plus-streams-thinking-disabled",
-    "recordedAt": "2026-09-08T03:10:42.782Z"
+    "recordedAt": "2026-10-02T01:23:37.836Z"
   },
   "interactions": [
     {
@@ -21,14 +21,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.7-plus\",\"messages\":[{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"max_completion_tokens\":4096,\"enable_thinking\":false}"
+        "body": "{\"model\":\"qwen3.7-plus\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"max_completion_tokens\":4096,\"enable_thinking\":false}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
-        "body": "data: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-047bcb67-b193-9a4f-9d77-ea0325be6d7c\",\"created\":1788837041,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-047bcb67-b193-9a4f-9d77-ea0325be6d7c\",\"choices\":[{\"delta\":{\"content\":\"3\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837041,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-047bcb67-b193-9a4f-9d77-ea0325be6d7c\",\"choices\":[{\"delta\":{\"content\":\"7887\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837041,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-047bcb67-b193-9a4f-9d77-ea0325be6d7c\",\"choices\":[{\"delta\":{\"content\":\"\"},\"index\":0,\"finish_reason\":\"stop\",\"logprobs\":null}],\"created\":1788837041,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"choices\":[],\"created\":1788837041,\"id\":\"chatcmpl-047bcb67-b193-9a4f-9d77-ea0325be6d7c\",\"model\":\"qwen3.7-plus\",\"object\":\"chat.completion.chunk\",\"usage\":{\"completion_tokens\":5,\"prompt_tokens\":32,\"prompt_tokens_details\":{\"cached_tokens\":0,\"text_tokens\":32},\"total_tokens\":37}}\n\ndata: [DONE]\n\n"
+        "body": "data: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-e96a3356-bec9-98ad-bdbe-af00a15ee965\",\"created\":1790904216,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-e96a3356-bec9-98ad-bdbe-af00a15ee965\",\"choices\":[{\"delta\":{\"content\":\"3\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904216,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-e96a3356-bec9-98ad-bdbe-af00a15ee965\",\"choices\":[{\"delta\":{\"content\":\"7887\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904216,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-e96a3356-bec9-98ad-bdbe-af00a15ee965\",\"choices\":[{\"delta\":{\"content\":\"\"},\"index\":0,\"finish_reason\":\"stop\",\"logprobs\":null}],\"created\":1790904216,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"choices\":[],\"created\":1790904216,\"id\":\"chatcmpl-e96a3356-bec9-98ad-bdbe-af00a15ee965\",\"model\":\"qwen3.7-plus\",\"object\":\"chat.completion.chunk\",\"usage\":{\"completion_tokens\":5,\"prompt_tokens\":32,\"prompt_tokens_details\":{\"cache_creation\":{\"ephemeral_5m_input_tokens\":0},\"cache_creation_input_tokens\":0,\"cache_type\":\"ephemeral\",\"cache_write_tokens\":0,\"cached_tokens\":0,\"text_tokens\":32},\"total_tokens\":37}}\n\ndata: [DONE]\n\n"
       }
     }
   ]

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

@@ -10,7 +10,7 @@
       "usage"
     ],
     "name": "alibaba-chat/qwen-3-7-plus-streams-thinking-enabled",
-    "recordedAt": "2026-09-08T03:10:54.099Z"
+    "recordedAt": "2026-10-02T01:23:43.998Z"
   },
   "interactions": [
     {
@@ -21,14 +21,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.7-plus\",\"messages\":[{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"max_completion_tokens\":4096,\"enable_thinking\":true,\"thinking_budget\":1024}"
+        "body": "{\"model\":\"qwen3.7-plus\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"max_completion_tokens\":4096,\"enable_thinking\":true,\"thinking_budget\":1024}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
-        "body": "data: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning_content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"Thinking\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" Process:\\n\\n1\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\".  **Ident\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"ify the core question\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\":** The user wants\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" to know the product\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" of \"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"173 and\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" 219\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\".\\n2.\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"  **Identify\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" the constraint:** The\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" response must contain *\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"only\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-ec928416-c99b-9f46-9805-cbb37bd7c499\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"* the final integer\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837042,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"cLine truncated
+        "body": "data: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning_content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"Thinking\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" Process:\\n\\n1\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\".  Identify\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" the core\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" question: Calculate \"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"173 *\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" 219\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\".\\n2.\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"  Constraint: Reply\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" with *\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"only* the final\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" integer.\\n3\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\".  Perform the\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" multiplication:\\n\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fe-9ee8-a442-7a3881697fdf\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"    *   \"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904218,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.7-plus\",\"id\":\"chatcmpl-70ed9ebc-62fLine truncated
       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-chat/qwen-3-8-flash-reads-image-bytes.json

@@ -1,9 +1,15 @@
 {
   "version": 1,
   "metadata": {
-    "tags": ["prefix:alibaba-chat", "provider:alibaba", "protocol:alibaba-chat", "region:ap-southeast-1", "image"],
+    "tags": [
+      "prefix:alibaba-chat",
+      "provider:alibaba",
+      "protocol:alibaba-chat",
+      "region:ap-southeast-1",
+      "image"
+    ],
     "name": "alibaba-chat/qwen-3-8-flash-reads-image-bytes",
-    "recordedAt": "2026-09-08T03:10:55.585Z"
+    "recordedAt": "2026-10-02T01:23:45.179Z"
   },
   "interactions": [
     {
@@ -14,14 +20,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-flash\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Read the three words in this image. Reply with only the words in order.\"},{\"type\":\"image_url\",\"image_url\":{\"url\":\"data:image/png;base64,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 truncated
+        "body": "{\"model\":\"qwen3.8-flash\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Read the three words in this image. Reply with only the words in order.\",\"cache_control\":{\"type\":\"ephemeral\"}},{\"type\":\"image_url\",\"image_url\":{\"url\":\"data:image/png;base64,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 truncated
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
-        "body": "data: {\"model\":\"qwen3.8-flash\",\"id\":\"chatcmpl-2952c591-6e41-90ec-81ca-894b8e84f0aa\",\"created\":1788837054,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-flash\",\"id\":\"chatcmpl-2952c591-6e41-90ec-81ca-894b8e84f0aa\",\"choices\":[{\"delta\":{\"content\":\"j\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837054,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-flash\",\"id\":\"chatcmpl-2952c591-6e41-90ec-81ca-894b8e84f0aa\",\"choices\":[{\"delta\":{\"content\":\"iggling restroom prison\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837054,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-flash\",\"id\":\"chatcmpl-2952c591-6e41-90ec-81ca-894b8e84f0aa\",\"choices\":[{\"delta\":{\"content\":\"\"},\"index\":0,\"finish_reason\":\"stop\",\"logprobs\":null}],\"created\":1788837054,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"choices\":[],\"created\":1788837054,\"id\":\"chatcmpl-2952c591-6e41-90ec-81ca-894b8e84f0aa\",\"model\":\"qwen3.8-flash\",\"object\":\"chat.completion.chunk\",\"usage\":{\"completion_tokens\":6,\"completion_tokens_details\":{},\"prompt_tokens\":110,\"prompt_tokens_details\":{\"cached_tokens\":0,\"image_tokens\":82,\"text_tokens\":28},\"total_tokens\":116}}\n\ndata: [DONE]\n\n"
+        "body": "data: {\"model\":\"qwen3.8-flash\",\"id\":\"chatcmpl-69096b14-dda4-93fc-a838-0e7640f71dfa\",\"created\":1790904224,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-flash\",\"id\":\"chatcmpl-69096b14-dda4-93fc-a838-0e7640f71dfa\",\"choices\":[{\"delta\":{\"content\":\"j\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904224,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-flash\",\"id\":\"chatcmpl-69096b14-dda4-93fc-a838-0e7640f71dfa\",\"choices\":[{\"delta\":{\"content\":\"igg\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904224,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-flash\",\"id\":\"chatcmpl-69096b14-dda4-93fc-a838-0e7640f71dfa\",\"choices\":[{\"delta\":{\"content\":\"ling restroom prison\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904224,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-flash\",\"id\":\"chatcmpl-69096b14-dda4-93fc-a838-0e7640f71dfa\",\"choices\":[{\"delta\":{\"content\":\"\"},\"index\":0,\"finish_reason\":\"stop\",\"logprobs\":null}],\"created\":1790904224,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"choices\":[],\"created\":1790904224,\"id\":\"chatcmpl-69096b14-dda4-93fc-a838-0e7640f71dfa\",\"model\":\"qwen3.8-flash\",\"object\":\"chat.completion.chunk\",\"usage\":{\"completion_tokens\":6,\"completion_tokens_details\":{},\"prompt_tokens\":123,\"prompt_tokens_details\":{\"cached_tokens\":0,\"image_tokens\":82,\"text_tokens\":41},\"total_tokens\":129}}\n\ndata: [DONE]\n\n"
       }
     }
   ]

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

@@ -10,7 +10,7 @@
       "tool-choice"
     ],
     "name": "alibaba-chat/qwen-3-8-max-obeys-named-tool-choice",
-    "recordedAt": "2026-09-08T03:10:56.576Z"
+    "recordedAt": "2026-10-02T01:23:46.235Z"
   },
   "interactions": [
     {
@@ -21,14 +21,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":\"Find the current weather in Paris.\"}],\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"get_weather\",\"description\":\"Get weather in a city\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"]}}}],\"tool_choice\":{\"type\":\"function\",\"function\":{\"name\":\"get_weather\"}},\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"none\",\"max_completion_tokens\":4096}"
+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Find the current weather in Paris.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"get_weather\",\"description\":\"Get weather in a city\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"]}}}],\"tool_choice\":{\"type\":\"function\",\"function\":{\"name\":\"get_weather\"}},\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"none\",\"max_completion_tokens\":4096}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
-        "body": "data: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-681dfa5a-ae08-98da-ba0d-4b1d0d364b6b\",\"created\":1788837055,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"tool_calls\":[{\"index\":0,\"id\":\"call_4eb823cb28d141c8befbb331\",\"type\":\"function\",\"function\":{\"name\":\"get_weather\",\"arguments\":\"\"}}]},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-681dfa5a-ae08-98da-ba0d-4b1d0d364b6b\",\"choices\":[{\"delta\":{\"content\":\"\",\"tool_calls\":[{\"index\":0,\"id\":\"\",\"type\":\"function\",\"function\":{\"arguments\":\"\"}}]},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837055,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-681dfa5a-ae08-98da-ba0d-4b1d0d364b6b\",\"choices\":[{\"delta\":{\"content\":\"\",\"tool_calls\":[{\"type\":\"function\",\"index\":0,\"function\":{\"arguments\":\"{\\\"city\\\": \\\"Paris\"}}]},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837055,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-681dfa5a-ae08-98da-ba0d-4b1d0d364b6b\",\"choices\":[{\"delta\":{\"content\":\"\",\"tool_calls\":[{\"type\":\"function\",\"index\":0,\"function\":{\"arguments\":\"\\\"\"}}]},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837055,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-681dfa5a-ae08-98da-ba0d-4b1d0d364b6b\",\"choices\":[{\"delta\":{\"content\":\"\",\"tool_calls\":[{\"type\":\"function\",\"index\":0,\"function\":{\"arguments\":\"}\"}}]},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837055,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-681dfa5a-ae08-98da-ba0d-4b1d0d364b6b\",\"choices\":[{\"delta\":{\"content\":\"\",\"tool_calls\":[{\"type\":\"function\",\"index\":0,\"function\":{\"arguments\":\"\"}}]},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837055,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-681dfa5a-ae08-98da-ba0d-4b1d0d364b6b\",\"choices\":[{\"delta\":{\"tool_calls\":[{\"function\":{\"arguments\":\"\"},\"index\":0,\"id\":null,\"type\":\"function\"}],\"content\":\"\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837055,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-681dfa5a-ae08-98da-ba0d-4b1d0d364b6b\",\"choices\":[{\"delta\":{},\"index\":0,\"finish_reason\":\"stop\",\"logprobs\":null}],\"created\":1788837055,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"choices\":[],\"created\":1788837055,\"id\":\"chatcmpl-681dfa5a-ae08-98da-ba0d-4b1d0d364b6b\",\"model\":\"qwen3.8-max\",\"object\":\"chat.completion.chunk\",\"usage\":{\"completion_tokens\":19,\"prompt_tokens\":288,\"prompt_tokens_details\":{\"cached_tokens\":0,\"text_tokens\":288},\"total_tokens\":307}}\n\ndata: [DONE]\n\n"
+        "body": "data: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-bf693c1a-0554-935b-ab28-cda0a18a27ff\",\"created\":1790904225,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"tool_calls\":[{\"index\":0,\"id\":\"call_3b220e76d7d946f498d026c0\",\"type\":\"function\",\"function\":{\"name\":\"get_weather\",\"arguments\":\"\"}}]},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-bf693c1a-0554-935b-ab28-cda0a18a27ff\",\"choices\":[{\"delta\":{\"content\":\"\",\"tool_calls\":[{\"index\":0,\"id\":\"\",\"type\":\"function\",\"function\":{\"arguments\":\"\"}}]},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904225,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-bf693c1a-0554-935b-ab28-cda0a18a27ff\",\"choices\":[{\"delta\":{\"content\":\"\",\"tool_calls\":[{\"type\":\"function\",\"index\":0,\"function\":{\"arguments\":\"{\\\"city\\\": \\\"Paris\"}}]},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904225,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-bf693c1a-0554-935b-ab28-cda0a18a27ff\",\"choices\":[{\"delta\":{\"content\":\"\",\"tool_calls\":[{\"type\":\"function\",\"index\":0,\"function\":{\"arguments\":\"\\\"\"}}]},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904225,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-bf693c1a-0554-935b-ab28-cda0a18a27ff\",\"choices\":[{\"delta\":{\"content\":\"\",\"tool_calls\":[{\"type\":\"function\",\"index\":0,\"function\":{\"arguments\":\"}\"}}]},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904225,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-bf693c1a-0554-935b-ab28-cda0a18a27ff\",\"choices\":[{\"delta\":{\"content\":\"\",\"tool_calls\":[{\"type\":\"function\",\"index\":0,\"function\":{\"arguments\":\"\"}}]},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904225,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-bf693c1a-0554-935b-ab28-cda0a18a27ff\",\"choices\":[{\"delta\":{\"tool_calls\":[{\"function\":{\"arguments\":\"\"},\"index\":0,\"id\":null,\"type\":\"function\"}],\"content\":\"\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904225,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-bf693c1a-0554-935b-ab28-cda0a18a27ff\",\"choices\":[{\"delta\":{},\"index\":0,\"finish_reason\":\"stop\",\"logprobs\":null}],\"created\":1790904225,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"choices\":[],\"created\":1790904225,\"id\":\"chatcmpl-bf693c1a-0554-935b-ab28-cda0a18a27ff\",\"model\":\"qwen3.8-max\",\"object\":\"chat.completion.chunk\",\"usage\":{\"completion_tokens\":19,\"prompt_tokens\":288,\"prompt_tokens_details\":{\"cache_creation\":{\"ephemeral_5m_input_tokens\":0},\"cache_creation_input_tokens\":0,\"cache_type\":\"ephemeral\",\"cache_write_tokens\":0,\"cached_tokens\":0,\"text_tokens\":288},\"total_tokens\":307}}\n\ndata: [DONE]\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-chat/qwen-3-8-max-replays-reasoning-through-a-tool-loop-and-follow-up.json

@@ -12,7 +12,7 @@
       "continuation"
     ],
     "name": "alibaba-chat/qwen-3-8-max-replays-reasoning-through-a-tool-loop-and-follow-up",
-    "recordedAt": "2026-09-08T03:09:54.566Z"
+    "recordedAt": "2026-10-02T01:23:36.578Z"
   },
   "interactions": [
     {
@@ -23,14 +23,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":\"We have a budget of 38000 dollars for 219 trips costing 173 dollars each. Calculate whether that is affordable. If it is, use get_weather to look up the current weather in Paris. After receiving the result, report the weather in one short sentence.\"}],\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"get_weather\",\"description\":\"Get the current weather in a city\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false}}}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"medium\",\"tool_stream\":true,\"max_completion_tokens\":4096,\"preserve_thinking\":true}"
+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"We have a budget of 38000 dollars for 219 trips costing 173 dollars each. Calculate whether that is affordable. If it is, use get_weather to look up the current weather in Paris. After receiving the result, report the weather in one short sentence.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"get_weather\",\"description\":\"Get the current weather in a city\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false}}}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"medium\",\"tool_stream\":true,\"max_completion_tokens\":4096,\"preserve_thinking\":true}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
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+        "body": "data: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-ba39bdbc-1408-9be9-bc93-fea920370869\",\"created\":1790904215,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning_content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-ba39bdbc-1408-9be9-bc93-fea920370869\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"The\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904215,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-ba39bdbc-1408-9be9-bc93-fea920370869\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" tool reported\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904215,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-ba39bdbc-1408-9be9-bc93-fea920370869\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" 18°C\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904215,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-ba39bdbc-1408-9be9-bc93-fea920370869\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\".\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904215,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-ba39bdbc-1408-9be9-bc93-fea920370869\",\"choices\":[{\"delta\":{\"content\":\"18°C\",\"reasoning_content\":\"\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904215,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-ba39bdbc-1408-9be9-bc93-fea920370869\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"\"},\"index\":0,\"finish_reason\":\"stop\",\"logprobs\":null}],\"created\":1790904215,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"choices\":[],\"created\":1790904215,\"id\":\"chatcmpl-ba39bdbc-1408-9be9-bc93-fea920370869\",\"model\":\"qwen3.8-max\",\"object\":\"chat.completion.chunk\",\"usage\":{\"completion_tokens\":14,\"completion_tokens_details\":{\"reasoning_tokens\":8,\"text_tokens\":14},\"prompt_tokens\":587,\"prompt_tokens_details\":{\"cache_creation\":{\"ephemeral_5m_input_tokens\":0},\"cache_creation_input_tokens\":0,\"cache_type\":\"ephemeral\",\"cache_write_tokens\":0,\"cached_tokens\":0,\"text_tokens\":587},\"total_tokens\":601}}\n\ndata: [DONE]\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-chat/qwen-3-8-max-returns-a-json-object.json

@@ -9,7 +9,7 @@
       "structured-output"
     ],
     "name": "alibaba-chat/qwen-3-8-max-returns-a-json-object",
-    "recordedAt": "2026-09-08T03:11:29.462Z"
+    "recordedAt": "2026-10-02T01:23:47.415Z"
   },
   "interactions": [
     {
@@ -20,14 +20,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":\"Return a JSON object with one key \\\"city\\\" set to the capital city of France.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"none\",\"max_completion_tokens\":1024,\"response_format\":{\"type\":\"json_object\"}}"
+        "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,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"none\",\"max_completion_tokens\":1024,\"response_format\":{\"type\":\"json_object\"}}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
-        "body": "data: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-de34af77-7b1e-9999-a48f-e564c03d4b6b\",\"created\":1788837088,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-de34af77-7b1e-9999-a48f-e564c03d4b6b\",\"choices\":[{\"delta\":{\"content\":\"{\\\"\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837088,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-de34af77-7b1e-9999-a48f-e564c03d4b6b\",\"choices\":[{\"delta\":{\"content\":\"city\\\":\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837088,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-de34af77-7b1e-9999-a48f-e564c03d4b6b\",\"choices\":[{\"delta\":{\"content\":\" \\\"Paris\\\"}\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788837088,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-de34af77-7b1e-9999-a48f-e564c03d4b6b\",\"choices\":[{\"delta\":{\"content\":\"\"},\"index\":0,\"finish_reason\":\"stop\",\"logprobs\":null}],\"created\":1788837088,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"choices\":[],\"created\":1788837088,\"id\":\"chatcmpl-de34af77-7b1e-9999-a48f-e564c03d4b6b\",\"model\":\"qwen3.8-max\",\"object\":\"chat.completion.chunk\",\"usage\":{\"completion_tokens\":6,\"prompt_tokens\":32,\"prompt_tokens_details\":{\"cached_tokens\":0,\"text_tokens\":32},\"total_tokens\":38}}\n\ndata: [DONE]\n\n"
+        "body": "data: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-8a907cb0-1885-92de-bde7-b81cdc64a55b\",\"created\":1790904226,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-8a907cb0-1885-92de-bde7-b81cdc64a55b\",\"choices\":[{\"delta\":{\"content\":\"{\\\"\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904226,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-8a907cb0-1885-92de-bde7-b81cdc64a55b\",\"choices\":[{\"delta\":{\"content\":\"city\\\":\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904226,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-8a907cb0-1885-92de-bde7-b81cdc64a55b\",\"choices\":[{\"delta\":{\"content\":\" \\\"Paris\\\"}\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904226,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-8a907cb0-1885-92de-bde7-b81cdc64a55b\",\"choices\":[{\"delta\":{\"content\":\"\"},\"index\":0,\"finish_reason\":\"stop\",\"logprobs\":null}],\"created\":1790904226,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"choices\":[],\"created\":1790904226,\"id\":\"chatcmpl-8a907cb0-1885-92de-bde7-b81cdc64a55b\",\"model\":\"qwen3.8-max\",\"object\":\"chat.completion.chunk\",\"usage\":{\"completion_tokens\":6,\"prompt_tokens\":32,\"prompt_tokens_details\":{\"cache_creation\":{\"ephemeral_5m_input_tokens\":0},\"cache_creation_input_tokens\":0,\"cache_type\":\"ephemeral\",\"cache_write_tokens\":0,\"cached_tokens\":0,\"text_tokens\":32},\"total_tokens\":38}}\n\ndata: [DONE]\n\n"
       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-chat/qwen-3-8-max-streams-default-effort.json

@@ -11,7 +11,7 @@
       "usage"
     ],
     "name": "alibaba-chat/qwen-3-8-max-streams-default-effort",
-    "recordedAt": "2026-09-08T03:08:03.087Z"
+    "recordedAt": "2026-10-02T01:23:08.402Z"
   },
   "interactions": [
     {
@@ -22,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"max_completion_tokens\":4096}"
+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"max_completion_tokens\":4096}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
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       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-chat/qwen-3-8-max-streams-high-effort.json

@@ -11,7 +11,7 @@
       "usage"
     ],
     "name": "alibaba-chat/qwen-3-8-max-streams-high-effort",
-    "recordedAt": "2026-09-08T03:09:41.038Z"
+    "recordedAt": "2026-10-02T01:23:22.666Z"
   },
   "interactions": [
     {
@@ -22,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"high\",\"max_completion_tokens\":4096}"
+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"high\",\"max_completion_tokens\":4096}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
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+        "body": "data: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5161785a-7f2c-9148-a072-f86ebb6b4b58\",\"created\":1790904200,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning_content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5161785a-7f2c-9148-a072-f86ebb6b4b58\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"We\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904200,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5161785a-7f2c-9148-a072-f86ebb6b4b58\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" need answer user\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904200,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: 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{\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5161785a-7f2c-9148-a072-f86ebb6b4b58\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" only.\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904200,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5161785a-7f2c-9148-a072-f86ebb6b4b58\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" Need compute 1\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904200,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5161785a-7f2c-9148-a072-f86ebb6b4b58\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"73*2\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904200,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: 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{\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5161785a-7f2c-9148-a072-f86ebb6b4b58\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"3287\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904200,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5161785a-7f2c-9148-a072-f86ebb6b4b58\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoninLine truncated
       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-chat/qwen-3-8-max-streams-low-effort.json

@@ -11,7 +11,7 @@
       "usage"
     ],
     "name": "alibaba-chat/qwen-3-8-max-streams-low-effort",
-    "recordedAt": "2026-09-08T03:09:34.363Z"
+    "recordedAt": "2026-10-02T01:23:16.772Z"
   },
   "interactions": [
     {
@@ -22,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"low\",\"max_completion_tokens\":4096}"
+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"low\",\"max_completion_tokens\":4096}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
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{\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-917106a3-dfdd-9124-82dc-900de2edcf25\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"73 × \"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836971,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-917106a3-dfdd-9124-82dc-900de2edcf25\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"219.\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836971,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-917106a3-dfdd-9124-82dc-900de2edcf25\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"\\n\\n173\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836971,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: 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{\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-917106a3-dfdd-9124-82dc-900de2edcf25\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"200 +\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836971,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-917106a3-dfdd-9124-82dc-900de2edcf25\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" 19)\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836971,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-917106a3-dfdd-9124-82dc-900de2edcf25\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"\\n= 1\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836971,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-917106a3-dfdd-9124-82dc-900de2edcf25\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"73 × \"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836971,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-917106a3-dfdd-9124-82dc-900de2edcf25\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"200 +\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836971,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-917106a3-dfdd-9124-82dc-900de2edcf25\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" 173\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836971,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-917106a3-dfdd-9124-82dc-900de2edcf25\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" × 19\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836971,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-917106a3-dfdd-9124-82dc-900de2edcf25\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"\\n= 3\"Line truncated
+        "body": "data: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning_content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"Let\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" me calculate 1\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"73 × \"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"219.\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"\\n\\n173\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" × 21\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"9 = 1\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"73 × (\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"200 +\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" 19)\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"\\n= 1\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"73 × \"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"200 +\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" 173\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" × 19\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904193,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-c369af93-ee05-9a82-a19b-6ff6348dbb7d\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"\\n= 3\"Line truncated
       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-chat/qwen-3-8-max-streams-max-effort.json

@@ -11,7 +11,7 @@
       "usage"
     ],
     "name": "alibaba-chat/qwen-3-8-max-streams-max-effort",
-    "recordedAt": "2026-09-08T03:09:49.033Z"
+    "recordedAt": "2026-10-02T01:23:30.455Z"
   },
   "interactions": [
     {
@@ -22,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"max\",\"max_completion_tokens\":4096}"
+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"max\",\"max_completion_tokens\":4096}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
-        "body": "data: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning_content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"We\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" need answer user's\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" simple arithmetic\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\": 17\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"3 * 2\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"19\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\". Need final only\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" integer. Compute:\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" 173\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"*200\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"=346\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"00;\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" 173\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"*19=\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"3287\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836985,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-5202c901-3c72-9b43-8a9f-3db17d85a1cb\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoningLine truncated
+        "body": "data: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning_content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"We\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" need answer user\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\":\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" \\\"What is \"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"173 multiplied\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" by 21\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"9? Reply with\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" only the final integer\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\".\\\" Need compute.\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" 173\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"*219\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" = 17\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"3*(20\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"0+19\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\")=346\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904206,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-03edb52e-dc72-9acc-980c-3f783db5a23e\",\"choices\":[{\"delta\":{\"conLine truncated
       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-chat/qwen-3-8-max-streams-medium-effort.json

@@ -11,7 +11,7 @@
       "usage"
     ],
     "name": "alibaba-chat/qwen-3-8-max-streams-medium-effort",
-    "recordedAt": "2026-09-08T03:09:38.233Z"
+    "recordedAt": "2026-10-02T01:23:20.103Z"
   },
   "interactions": [
     {
@@ -22,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"medium\",\"max_completion_tokens\":4096}"
+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"medium\",\"max_completion_tokens\":4096}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
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{\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-a42ce2bc-4c60-9079-9b86-31ce3737204c\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" calculate 17\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836974,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-a42ce2bc-4c60-9079-9b86-31ce3737204c\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"3 × 2\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836974,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-a42ce2bc-4c60-9079-9b86-31ce3737204c\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"19 and reply\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836974,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: 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{\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-a42ce2bc-4c60-9079-9b86-31ce3737204c\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"219:\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836974,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-a42ce2bc-4c60-9079-9b86-31ce3737204c\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"\\n173\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836974,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-a42ce2bc-4c60-9079-9b86-31ce3737204c\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" × 20\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836974,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-a42ce2bc-4c60-9079-9b86-31ce3737204c\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"0 = 3\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836974,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-a42ce2bc-4c60-9079-9b86-31ce3737204c\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"4,60\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836974,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-a42ce2bc-4c60-9079-9b86-31ce3737204c\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"0\\n17\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836974,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-a42ce2bc-4c60-9079-9b86-31ce3737204c\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"3 × 1\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1788836974,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-a42ce2bc-4c60-9079-9b86-31ce3737204c\",\"choices\":[{\"delta\":{\"content\Line truncated
+        "body": "data: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null,\"choices\":[{\"logprobs\":null,\"index\":0,\"delta\":{\"content\":\"\",\"role\":\"assistant\",\"reasoning_content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"The\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" user wants me to\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: 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{\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" with only the final\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" integer.\\n\\n1\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"73 × \"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"219:\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"\\n173\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\" × 20\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"0 = 3\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"4,60\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"0\\n17\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\":\"\",\"reasoning_content\":\"3 × 1\"},\"index\":0,\"finish_reason\":null,\"logprobs\":null}],\"created\":1790904197,\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"model\":\"qwen3.8-max\",\"id\":\"chatcmpl-231b166c-7ab2-9476-af1c-edce81920373\",\"choices\":[{\"delta\":{\"content\Line truncated
       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-chat/qwen-3-8-max-streams-minimal-effort.json

@@ -11,7 +11,7 @@
       "usage"
     ],
     "name": "alibaba-chat/qwen-3-8-max-streams-minimal-effort",
-    "recordedAt": "2026-09-08T03:09:31.692Z"
+    "recordedAt": "2026-10-02T01:23:12.765Z"
   },
   "interactions": [
     {
@@ -22,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"minimal\",\"max_completion_tokens\":4096}"
+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"minimal\",\"max_completion_tokens\":4096}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
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\"},\Line truncated
       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-chat/qwen-3-8-max-streams-none-effort.json

@@ -11,7 +11,7 @@
       "usage"
     ],
     "name": "alibaba-chat/qwen-3-8-max-streams-none-effort",
-    "recordedAt": "2026-09-08T03:09:27.584Z"
+    "recordedAt": "2026-10-02T01:23:09.451Z"
   },
   "interactions": [
     {
@@ -22,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":\"What is 173 multiplied by 219? Reply with only the final integer.\"}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"none\",\"max_completion_tokens\":4096}"
+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"none\",\"max_completion_tokens\":4096}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
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       }
     }
   ]

packages/ai/test/fixtures/recordings/alibaba-chat/qwen-3-8-max-streams-xhigh-effort.json

@@ -11,7 +11,7 @@
       "usage"
     ],
     "name": "alibaba-chat/qwen-3-8-max-streams-xhigh-effort",
-    "recordedAt": "2026-09-08T03:09:45.046Z"
+    "recordedAt": "2026-10-02T01:23:26.218Z"
   },
   "interactions": [
     {
@@ -22,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
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+        "body": "{\"model\":\"qwen3.8-max\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 173 multiplied by 219? Reply with only the final integer.\",\"cache_control\":{\"type\":\"ephemeral\"}}]}],\"stream\":true,\"stream_options\":{\"include_usage\":true},\"reasoning_effort\":\"xhigh\",\"max_completion_tokens\":4096}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream;charset=utf-8"
         },
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packages/ai/test/fixtures/recordings/cohere/continues-a-native-tool-call.json

@@ -0,0 +1,49 @@
+{
+  "version": 1,
+  "metadata": {
+    "tags": [
+      "prefix:cohere",
+      "provider:cohere"
+    ],
+    "name": "cohere/continues-a-native-tool-call",
+    "recordedAt": "2026-10-03T04:09:51.600Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://api.cohere.com/v2/chat",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"model\":\"command-a-plus-05-2026\",\"messages\":[{\"role\":\"system\",\"content\":[{\"type\":\"text\",\"text\":\"Use the get_weather tool exactly once.\"},{\"type\":\"text\",\"text\":\"After the tool result, reply exactly: Paris is sunny.\"}]},{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is the weather in Paris?\"}]}],\"stream\":true,\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"get_weather\",\"description\":\"Get current weather for a city.\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\"}},\"required\":[\"city\"],\"additionalProperties\":false}}}],\"max_tokens\":2048}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "text/event-stream"
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+      }
+    },
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://api.cohere.com/v2/chat",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"model\":\"command-a-plus-05-2026\",\"messages\":[{\"role\":\"system\",\"content\":[{\"type\":\"text\",\"text\":\"Use the get_weather tool exactly once.\"},{\"type\":\"text\",\"text\":\"After the tool result, reply exactly: Paris is sunny.\"}]},{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is the weather in Paris?\"}]},{\"role\":\"assistant\",\"content\":[{\"type\":\"thinking\",\"thinking\":\"The user is asking for the weather in Paris. I have a get_weather function available that takes a city parameter. The user specifically mentioned \\\"Paris\\\" as the city. I need to use the get_weather tool exactly once as per the policies, and I have all the required parameters (city = \\\"Paris\\\").\\n\\nLet me call the function with the city parameter set to \\\"Paris\\\".\"}],\"tool_calls\":[{\"id\":\"get_weather_vfp5ryredwrg\",\"type\":\"function\",\"function\":{\"name\":\"get_weather\",\"arguments\":\"{\\\"city\\\":\\\"Paris\\\"}\"}}]},{\"role\":\"tool\",\"content\":\"{\\\"temperature\\\":22,\\\"condition\\\":\\\"sunny\\\"}\",\"tool_call_id\":\"get_weather_vfp5ryredwrg\"}],\"stream\":true,\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"get_weather\",\"description\":\"Get current weather for a city.\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\"}},\"required\":[\"city\"],\"additionalProperties\":false}}}],\"max_tokens\":2048}"
+      },
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+      }
+    }
+  ]
+}

packages/ai/test/fixtures/recordings/cohere/streams-compatible-chat-reasoning.json

@@ -0,0 +1,31 @@
+{
+  "version": 1,
+  "metadata": {
+    "tags": [
+      "prefix:cohere",
+      "provider:cohere"
+    ],
+    "name": "cohere/streams-compatible-chat-reasoning",
+    "recordedAt": "2026-10-02T02:39:47.406Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://api.cohere.ai/compatibility/v1/chat/completions",
+        "headers": {
+          "content-type": "application/json"
+        },
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+      },
+      "response": {
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what\"},\"logprobs\":null}],\"created\":1790908779,\"model\":\"command-a-reasoning-08-2025\",\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"id\":\"52b1dec0-5396-46a4-9897-9e0adf56038b\",\"choices\":[{\"index\":0,\"finish_reason\":null,\"delta\":{\"reasoning_content\":\" 1\"},\"logprobs\":null}],\"created\":1790908779,\"model\":\"command-a-reasoning-08-2025\",\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"id\":\"52b1dec0-5396-46a4-9897-9e0adf56038b\",\"choices\":[{\"index\":0,\"finish_reason\":null,\"delta\":{\"reasoning_content\":\"7\"},\"logprobs\":null}],\"created\":1790908779,\"model\":\"command-a-reasoning-08-2025\",\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"id\":\"52b1dec0-5396-46a4-9897-9e0adf56038b\",\"choices\":[{\"index\":0,\"finish_reason\":null,\"delta\":{\"reasoning_content\":\" multiplied\"},\"logprobs\":null}],\"created\":1790908779,\"model\":\"command-a-reasoning-08-2025\",\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"id\":\"52b1dec0-5396-46a4-9897-9e0adf56038b\",\"choices\":[{\"index\":0,\"finish_reason\":null,\"delta\":{\"reasoning_content\":\" by\"},\"logprobs\":null}],\"created\":1790908779,\"model\":\"command-a-reasoning-08-2025\",\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"id\":\"52b1dec0-5396-46a4-9897-9e0adf56038b\",\"choices\":[{\"index\":0,\"finish_reason\":null,\"delta\":{\"reasoning_content\":\" 2\"},\"logprobs\":null}],\"created\":1790908779,\"model\":\"command-a-reasoning-08-2025\",\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"id\":\"52b1dec0-5396-46a4-9897-9e0adf56038b\",\"choices\":[{\"index\":0,\"finish_reason\":null,\"delta\":{\"reasoning_content\":\"3\"},\"logprobs\":null}],\"created\":1790908779,\"model\":\"command-a-reasoning-08-2025\",\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"id\":\"52b1dec0-5396-46a4-9897-9e0adf56038b\",\"choices\":[{\"index\":0,\"finish_reason\":null,\"delta\":{\"reasoning_content\":\" is\"},\"logprobs\":null}],\"created\":1790908779,\"model\":\"command-a-reasoning-08-2025\",\"object\":\"chat.completion.chunk\",\"usage\":null}\n\ndata: {\"id\":\"52b1dec0-5396-46a4-9897-9e0adf56038b\",\"choices\":[{\"indLine truncated
+      }
+    }
+  ]
+}

packages/ai/test/fixtures/recordings/cohere/streams-native-text-and-usage.json

@@ -0,0 +1,31 @@
+{
+  "version": 1,
+  "metadata": {
+    "tags": [
+      "prefix:cohere",
+      "provider:cohere"
+    ],
+    "name": "cohere/streams-native-text-and-usage",
+    "recordedAt": "2026-10-02T02:36:12.967Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://api.cohere.com/v2/chat",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"model\":\"command-a-03-2025\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"Reply exactly: OK\"}]}],\"stream\":true,\"max_tokens\":64}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "text/event-stream"
+        },
+        "body": "event: message-start\ndata: {\"id\":\"a171b3a5-db11-4445-a645-5221fb466ab8\",\"type\":\"message-start\",\"delta\":{\"message\":{\"role\":\"assistant\",\"content\":[],\"tool_plan\":\"\",\"tool_calls\":[],\"citations\":[]}}}\n\nevent: content-start\ndata: {\"type\":\"content-start\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"type\":\"text\",\"text\":\"\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"text\":\"OK\"}}}}\n\nevent: content-end\ndata: {\"type\":\"content-end\",\"index\":0}\n\nevent: message-end\ndata: {\"type\":\"message-end\",\"delta\":{\"finish_reason\":\"COMPLETE\",\"usage\":{\"billed_units\":{\"input_tokens\":4,\"output_tokens\":1},\"tokens\":{\"input_tokens\":499,\"output_tokens\":4},\"cached_tokens\":464}}}\n\ndata: [DONE]\n\n"
+      }
+    }
+  ]
+}

packages/ai/test/fixtures/recordings/cohere/streams-native-thinking-with-a-budget.json

@@ -0,0 +1,31 @@
+{
+  "version": 1,
+  "metadata": {
+    "tags": [
+      "prefix:cohere",
+      "provider:cohere"
+    ],
+    "name": "cohere/streams-native-thinking-with-a-budget",
+    "recordedAt": "2026-10-02T02:36:14.669Z"
+  },
+  "interactions": [
+    {
+      "transport": "http",
+      "request": {
+        "method": "POST",
+        "url": "https://api.cohere.com/v2/chat",
+        "headers": {
+          "content-type": "application/json"
+        },
+        "body": "{\"model\":\"command-a-reasoning-08-2025\",\"messages\":[{\"role\":\"user\",\"content\":[{\"type\":\"text\",\"text\":\"What is 17 times 23? Answer briefly.\"}]}],\"stream\":true,\"thinking\":{\"type\":\"enabled\",\"token_budget\":128},\"max_tokens\":2048}"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "content-type": "text/event-stream"
+        },
+        "body": "event: message-start\ndata: {\"id\":\"305edbbe-9f86-4bc0-9490-7766b168a453\",\"type\":\"message-start\",\"delta\":{\"message\":{\"role\":\"assistant\",\"content\":[],\"tool_plan\":\"\",\"tool_calls\":[],\"citations\":[]}}}\n\nevent: content-start\ndata: {\"type\":\"content-start\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"type\":\"thinking\",\"thinking\":\"\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\"Okay\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\",\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" let\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\"'s\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" see\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\".\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" I\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" need\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" to\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" figure\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" out\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" what\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" 1\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\"7\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" multiplied\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" by\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" 2\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\"3\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" is\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\".\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" H\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\"mm\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\",\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" how\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" do\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" I\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" do\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" this\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\"?\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" I\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" remember\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" some\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" multiplication\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",\"index\":0,\"delta\":{\"message\":{\"content\":{\"thinking\":\" methods\"}}}}\n\nevent: content-delta\ndata: {\"type\":\"content-delta\",Line truncated
+      }
+    }
+  ]
+}

packages/ai/test/fixtures/recordings/mistral-chat/drives-a-tool-loop.json

@@ -2,9 +2,16 @@
   "version": 1,
   "metadata": {
     "model": "mistral-small-latest",
-    "tags": ["prefix:mistral-chat", "provider:mistral", "protocol:mistral-chat", "tool", "tool-loop", "usage"],
+    "tags": [
+      "prefix:mistral-chat",
+      "provider:mistral",
+      "protocol:mistral-chat",
+      "tool",
+      "tool-loop",
+      "usage"
+    ],
     "name": "mistral-chat/drives-a-tool-loop",
-    "recordedAt": "2026-08-30T17:18:49.552Z"
+    "recordedAt": "2026-10-03T04:09:49.878Z"
   },
   "interactions": [
     {
@@ -15,14 +22,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"mistral-small-latest\",\"messages\":[{\"role\":\"system\",\"content\":\"Call lookup_weather exactly once with Paris.\"},{\"role\":\"user\",\"content\":\"What is the weather?\"}],\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"description\":\"Look up the current weather for a city\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"strict\":false}}],\"tool_choice\":{\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\"}},\"stream\":true,\"max_tokens\":160,\"temperature\":0,\"reasoning_effort\":\"none\"}"
+        "body": "{\"model\":\"mistral-small-latest\",\"messages\":[{\"role\":\"system\",\"content\":[{\"type\":\"text\",\"text\":\"Call lookup_weather exactly once with Paris.\"},{\"type\":\"text\",\"text\":\"After the tool result, describe the weather briefly.\"}]},{\"role\":\"user\",\"content\":\"What is the weather?\"}],\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"description\":\"Look up the current weather for a city\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"strict\":false}}],\"tool_choice\":{\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\"}},\"stream\":true,\"max_tokens\":160,\"temperature\":0,\"reasoning_effort\":\"none\"}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream; charset=utf-8"
         },
-        "body": "data: {\"id\":\"07491e37a5ed48f9987f1583753a466b\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"role\":\"assistant\",\"content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"id\":\"07491e37a5ed48f9987f1583753a466b\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"tool_calls\":[{\"id\":\"ffJovBNqY\",\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"arguments\":\"{\\\"city\\\": \\\"Paris\\\"}\"},\"index\":0}]},\"finish_reason\":\"tool_calls\"}],\"usage\":{\"prompt_tokens\":110,\"total_tokens\":122,\"completion_tokens\":12,\"prompt_tokens_details\":{\"cached_tokens\":0},\"service_tier\":\"standard\"},\"p\":\"abcdefghijklm\"}\n\ndata: [DONE]\n\n"
+        "body": "data: {\"id\":\"81417fdbfbeb4714ae737aab701cbee4\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"role\":\"assistant\",\"content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"id\":\"81417fdbfbeb4714ae737aab701cbee4\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"tool_calls\":[{\"id\":\"EwgHkPRLW\",\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"arguments\":\"{\\\"city\\\": \\\"Paris\\\"}\"},\"index\":0}]},\"finish_reason\":\"tool_calls\"}],\"usage\":{\"prompt_tokens\":120,\"total_tokens\":132,\"completion_tokens\":12,\"prompt_tokens_details\":{\"cached_tokens\":0},\"service_tier\":\"standard\"},\"p\":\"abcdefghij\"}\n\ndata: [DONE]\n\n"
       }
     },
     {
@@ -33,14 +40,14 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"mistral-small-latest\",\"messages\":[{\"role\":\"system\",\"content\":\"Call lookup_weather exactly once with Paris.\"},{\"role\":\"user\",\"content\":\"What is the weather?\"},{\"role\":\"assistant\",\"content\":\"\",\"tool_calls\":[{\"id\":\"ffJovBNqY\",\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"arguments\":\"{\\\"city\\\":\\\"Paris\\\"}\"}}]},{\"role\":\"tool\",\"tool_call_id\":\"ffJovBNqY\",\"name\":\"lookup_weather\",\"content\":\"{\\\"condition\\\":\\\"sunny\\\",\\\"temperature\\\":\\\"18C\\\"}\"}],\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"description\":\"Look up the current weather for a city\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"strict\":false}}],\"tool_choice\":\"none\",\"stream\":true,\"max_tokens\":160,\"temperature\":0,\"reasoning_effort\":\"none\"}"
+        "body": "{\"model\":\"mistral-small-latest\",\"messages\":[{\"role\":\"system\",\"content\":[{\"type\":\"text\",\"text\":\"Call lookup_weather exactly once with Paris.\"},{\"type\":\"text\",\"text\":\"After the tool result, describe the weather briefly.\"}]},{\"role\":\"user\",\"content\":\"What is the weather?\"},{\"role\":\"assistant\",\"content\":\"\",\"tool_calls\":[{\"id\":\"EwgHkPRLW\",\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"arguments\":\"{\\\"city\\\":\\\"Paris\\\"}\"}}]},{\"role\":\"tool\",\"tool_call_id\":\"EwgHkPRLW\",\"name\":\"lookup_weather\",\"content\":\"{\\\"condition\\\":\\\"sunny\\\",\\\"temperature\\\":\\\"18C\\\"}\"}],\"tools\":[{\"type\":\"function\",\"function\":{\"name\":\"lookup_weather\",\"description\":\"Look up the current weather for a city\",\"parameters\":{\"type\":\"object\",\"properties\":{\"city\":{\"type\":\"string\",\"enum\":[\"Paris\"]}},\"required\":[\"city\"],\"additionalProperties\":false},\"strict\":false}}],\"tool_choice\":\"none\",\"stream\":true,\"max_tokens\":160,\"temperature\":0,\"reasoning_effort\":\"none\"}"
       },
       "response": {
         "status": 200,
         "headers": {
           "content-type": "text/event-stream; charset=utf-8"
         },
-        "body": "data: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"role\":\"assistant\",\"content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"The\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmn\"}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" weather in Paris is\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmn\"}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" currently sunny with\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmnopqrstu\"}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" a temperature of \"},\"finish_reason\":null}],\"p\":\"abcdef\"}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"18°C\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmnopqr\"}\n\ndata: {\"id\":\"8fcd293093b849139fc0893a48bbc7ce\",\"object\":\"chat.completion.chunk\",\"created\":1788110328,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\".\"},\"finish_reason\":\"stop\"}],\"usage\":{\"prompt_tokens\":57,\"total_tokens\":74,\"completion_tokens\":17,\"prompt_tokens_details\":{\"cached_tokens\":0},\"service_tier\":\"standard\"},\"p\":\"abcdefghijklmnopqrstuvwxyz\"}\n\ndata: [DONE]\n\n"
+        "body": "data: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"role\":\"assistant\",\"content\":\"\"},\"finish_reason\":null}]}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"The\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmnopqrstuvwxyz01234\"}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" weather in Paris is\"},\"finish_reason\":null}],\"p\":\"abcdefghijkl\"}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" currently sunny with a\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmn\"}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\" temperature of 1\"},\"finish_reason\":null}],\"p\":\"abcdefghi\"}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"8°C\"},\"finish_reason\":null}],\"p\":\"abcdefghijklmnopqrstuvwx\"}\n\ndata: {\"id\":\"a46eb8ccd1b947ca9d360c3446b295a5\",\"object\":\"chat.completion.chunk\",\"created\":1791000589,\"model\":\"mistral-small-latest\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\".\"},\"finish_reason\":\"stop\"}],\"usage\":{\"prompt_tokens\":67,\"total_tokens\":84,\"completion_tokens\":17,\"prompt_tokens_details\":{\"cached_tokens\":0},\"service_tier\":\"standard\"},\"p\":\"abcdefghijklmnopqrs\"}\n\ndata: [DONE]\n\n"
       }
     }
   ]

packages/ai/test/http-timeout.test.ts

@@ -0,0 +1,169 @@
+import { describe, expect } from "bun:test"
+import { Deferred, Effect, Fiber } from "effect"
+import * as TestClock from "effect/testing/TestClock"
+import { HttpOptions, LLM, mergeHttpOptions } from "../src/index.js"
+import { LLMClient } from "../src/route.js"
+import { configure } from "../src/providers/openai.js"
+import { dynamicResponse } from "./lib/http.js"
+import { deltaChunk, finishChunk } from "./lib/openai-chunks.js"
+import { sseEvents, sseRaw } from "./lib/sse.js"
+import { it } from "./lib/effect.js"
+
+const model = configure({ baseURL: "https://api.openai.test/v1/", apiKey: "test" }).chat("gpt-4.1-mini")
+const SSE = { headers: { "content-type": "text/event-stream" } }
+
+const silentServer = dynamicResponse(() => Effect.never)
+
+const slowHeadersServer = dynamicResponse((input) =>
+  Effect.sleep("10 minutes").pipe(
+    Effect.as(input.respond(sseEvents(deltaChunk({ role: "assistant", content: "Hi" }), finishChunk("stop")), SSE)),
+  ),
+)
+
+// Sends one chunk, then stalls until `resume` releases the rest of the body.
+const stalledServer = Effect.gen(function* () {
+  const stalled = yield* Deferred.make<void>()
+  let resume = () => {}
+  const released = new Promise<void>((resolve) => {
+    resume = resolve
+  })
+  const encoder = new TextEncoder()
+  const layer = dynamicResponse((input) =>
+    Effect.sync(() =>
+      input.respond(
+        new ReadableStream<Uint8Array>({
+          start(controller) {
+            controller.enqueue(encoder.encode(sseRaw(`data: ${JSON.stringify(deltaChunk({ content: "Hi" }))}`)))
+          },
+          async pull(controller) {
+            Deferred.doneUnsafe(stalled, Effect.void)
+            await released
+            controller.enqueue(encoder.encode(sseEvents(finishChunk("stop"))))
+            controller.close()
+          },
+        }),
+        SSE,
+      ),
+    ),
+  )
+  return { layer, stalled, resume: () => resume() }
+})
+
+describe("HTTP transport timeouts", () => {
+  it.effect("fails when response headers take longer than five minutes", () =>
+    Effect.gen(function* () {
+      const fiber = yield* LLMClient.generate(LLM.request({ model, prompt: "Hello" })).pipe(
+        Effect.provide(silentServer),
+        Effect.flip,
+        Effect.forkChild({ startImmediately: true }),
+      )
+      yield* TestClock.adjust("5 minutes")
+      const error = yield* Fiber.join(fiber)
+
+      expect(error.reason).toMatchObject({
+        _tag: "Transport",
+        transport: "http",
+        operation: "request",
+        code: "Timeout",
+      })
+    }),
+  )
+
+  it.effect("fails when the response body stalls for five minutes", () =>
+    Effect.gen(function* () {
+      const server = yield* stalledServer
+      const fiber = yield* LLMClient.generate(LLM.request({ model, prompt: "Hello" })).pipe(
+        Effect.provide(server.layer),
+        Effect.flip,
+        Effect.forkChild({ startImmediately: true }),
+      )
+      yield* Deferred.await(server.stalled)
+      yield* Effect.yieldNow
+      yield* TestClock.adjust("5 minutes")
+      const error = yield* Fiber.join(fiber)
+
+      expect(error.reason).toMatchObject({ _tag: "Transport", transport: "http", operation: "read", code: "Timeout" })
+      expect(error.reason.http).toMatchObject({ status: 200 })
+    }),
+  )
+
+  it.effect("applies a configured header timeout", () =>
+    Effect.gen(function* () {
+      const fiber = yield* LLMClient.generate(
+        LLM.request({ model, prompt: "Hello", http: { headerTimeout: 1_000 } }),
+      ).pipe(Effect.provide(silentServer), Effect.flip, Effect.forkChild({ startImmediately: true }))
+      yield* TestClock.adjust("1 second")
+      const error = yield* Fiber.join(fiber)
+
+      expect(error.reason).toMatchObject({ _tag: "Transport", operation: "request", code: "Timeout" })
+    }),
+  )
+
+  it.effect("disables the header timeout with false", () =>
+    Effect.gen(function* () {
+      const fiber = yield* LLMClient.generate(
+        LLM.request({ model, prompt: "Hello", http: { headerTimeout: false } }),
+      ).pipe(Effect.provide(slowHeadersServer), Effect.forkChild({ startImmediately: true }))
+      yield* TestClock.adjust("10 minutes")
+      const response = yield* Fiber.join(fiber)
+
+      expect(response.text).toBe("Hi")
+    }),
+  )
+
+  it.effect("disables the chunk timeout with false", () =>
+    Effect.gen(function* () {
+      const server = yield* stalledServer
+      const fiber = yield* LLMClient.generate(
+        LLM.request({ model, prompt: "Hello", http: { chunkTimeout: false } }),
+      ).pipe(Effect.provide(server.layer), Effect.forkChild({ startImmediately: true }))
+      yield* Deferred.await(server.stalled)
+      yield* Effect.yieldNow
+      yield* TestClock.adjust("10 minutes")
+      server.resume()
+      const response = yield* Fiber.join(fiber)
+
+      expect(response.text).toBe("Hi")
+    }),
+  )
+
+  it.effect("applies a whole-request timeout while the body is still streaming", () =>
+    Effect.gen(function* () {
+      const server = yield* stalledServer
+      const fiber = yield* LLMClient.generate(
+        LLM.request({ model, prompt: "Hello", http: { timeout: 60_000, chunkTimeout: false } }),
+      ).pipe(Effect.provide(server.layer), Effect.flip, Effect.forkChild({ startImmediately: true }))
+      yield* Deferred.await(server.stalled)
+      yield* Effect.yieldNow
+      yield* TestClock.adjust("1 minute")
+      const error = yield* Fiber.join(fiber)
+
+      expect(error.reason).toMatchObject({ _tag: "Transport", operation: "read", code: "Timeout" })
+    }),
+  )
+
+  it.effect("bounds the header wait by a shorter whole-request timeout", () =>
+    Effect.gen(function* () {
+      const fiber = yield* LLMClient.generate(
+        LLM.request({ model, prompt: "Hello", http: { timeout: 1_000, headerTimeout: false } }),
+      ).pipe(Effect.provide(silentServer), Effect.flip, Effect.forkChild({ startImmediately: true }))
+      yield* TestClock.adjust("1 second")
+      const error = yield* Fiber.join(fiber)
+
+      expect(error.reason).toMatchObject({ _tag: "Transport", operation: "request", code: "Timeout" })
+    }),
+  )
+
+  it.effect("merges timeouts with later values winning", () =>
+    Effect.sync(() => {
+      const merged = mergeHttpOptions(
+        new HttpOptions({ timeout: 5_000, headerTimeout: 1_000, chunkTimeout: 2_000 }),
+        new HttpOptions({ headers: { a: "b" } }),
+        new HttpOptions({ chunkTimeout: false }),
+      )
+
+      expect(merged).toMatchObject({ headers: { a: "b" }, timeout: 5_000, headerTimeout: 1_000, chunkTimeout: false })
+      expect(mergeHttpOptions(new HttpOptions({}), undefined)).toBeUndefined()
+    }),
+  )
+})

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

@@ -462,6 +462,27 @@ describe("provider error rawBody classification", () => {
     expect(reason._tag === "InvalidRequest" ? reason.classification : reason._tag).toBe("context-overflow")
   })
 
+  test("separates Cohere prompt overflow from output limit rejections", () => {
+    const classify = (message: string) => {
+      const reason = classifyProviderFailure({
+        message,
+        status: 400,
+        rawBody: JSON.stringify({ error_type: "TOO_MANY_TOKENS", message }),
+      })
+      return reason._tag === "InvalidRequest" ? reason.classification : reason._tag
+    }
+    expect(
+      classify(
+        "too many tokens: size limit exceeded by 168512 tokens. Try using shorter or fewer inputs. The limit for this model is 132000 tokens.",
+      ),
+    ).toBe("context-overflow")
+    expect(
+      classify(
+        "too many tokens: max tokens must be less than or equal to 4096, the maximum output length for this model - received 1000000.",
+      ),
+    ).toBeUndefined()
+  })
+
   test("classifies invalid API keys reported as HTTP 400 as authentication failures", () => {
     const rawBody = JSON.stringify({
       error: {

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

@@ -121,6 +121,25 @@ describe("provider package entrypoints", () => {
     })
   })
 
+  test("maps Cohere entrypoints onto native and compatibility routes", async () => {
+    const modules = await Promise.all([
+      import("@opencode/ai/providers/cohere"),
+      import("@opencode/ai/providers/cohere/chat"),
+    ])
+    const settings = { apiKey: "fixture", headers: { "x-test": "fixture" }, body: { future_option: true } }
+    const routes = [
+      ["cohere-chat", "https://api.cohere.com/v2"],
+      ["cohere-chat-completions", "https://api.cohere.ai/compatibility/v1"],
+    ]
+    modules.forEach((module, index) => {
+      const selected = module.model("command-a-03-2025", settings)
+      expect(selected.provider).toBe("cohere")
+      expect([selected.route.id, selected.route.endpoint.baseURL]).toEqual(routes[index])
+      expect(selected.route.defaults.headers).toEqual(settings.headers)
+      expect(selected.route.defaults.http?.body).toEqual(settings.body)
+    })
+  })
+
   test("maps MiniMax API entrypoints onto provider-owned routes", async () => {
     const modules = await Promise.all([
       import("@opencode/ai/providers/minimax"),

packages/ai/test/provider/cohere.recorded.test.ts

@@ -0,0 +1,98 @@
+import { expect } from "bun:test"
+import { Effect } from "effect"
+import { LLM, LLMEvent, LLMRequest, SystemPart } from "../../src/index.js"
+import { Cohere } from "../../src/providers/cohere.js"
+import { LLMClient } from "../../src/route.js"
+import { expectWeatherToolLoop, goldenWeatherToolLoopRequest, runWeatherToolLoop } from "../recorded-scenarios.js"
+import { recordedTests } from "../recorded-test.js"
+
+const recorded = recordedTests({ prefix: "cohere", provider: "cohere", requires: ["COHERE_API_KEY"] })
+const cohere = Cohere.configure({ apiKey: process.env.COHERE_API_KEY ?? "fixture" })
+
+recorded.effect(
+  "streams native text and usage",
+  () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          model: cohere.model("command-a-03-2025"),
+          prompt: "Reply exactly: OK",
+          generation: { maxTokens: 64 },
+        }),
+      )
+      expect(response.text.trim()).toMatch(/^OK\.?$/)
+      expect(response.usage.inputTokens).toBeGreaterThan(0)
+      expect(response.usage.outputTokens).toBeGreaterThan(0)
+      expect(response.events.find(LLMEvent.is.finish)?.reason).toEqual({ normalized: "stop", raw: "COMPLETE" })
+      expect(response.usage.providerMetadata?.cohere?.billed_units).toBeDefined()
+    }),
+  60_000,
+)
+
+recorded.effect(
+  "streams native thinking with a budget",
+  () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          model: cohere.model("command-a-reasoning-08-2025"),
+          prompt: "What is 17 times 23? Answer briefly.",
+          providerOptions: { thinking: { type: "enabled", tokenBudget: 128 } },
+          generation: { maxTokens: 2048 },
+        }),
+      )
+      expect(response.reasoning.length).toBeGreaterThan(0)
+      expect(response.text).toContain("391")
+      expect(response.usage.reasoningTokens).toBeGreaterThan(0)
+      expect(response.usage.reasoningTokens).toBeLessThanOrEqual(128)
+      expect(response.events.filter(LLMEvent.is.finish)).toHaveLength(1)
+    }),
+  60_000,
+)
+
+recorded.effect(
+  "continues a native tool call",
+  () =>
+    Effect.gen(function* () {
+      const events = yield* runWeatherToolLoop(
+        LLMRequest.update(
+          goldenWeatherToolLoopRequest({
+            id: "cohere-tool-loop",
+            model: cohere.model("command-a-plus-05-2026"),
+            maxTokens: 2048,
+            temperature: false,
+          }),
+          {
+            system: [
+              SystemPart.make("Use the get_weather tool exactly once."),
+              SystemPart.make("After the tool result, reply exactly: Paris is sunny."),
+            ],
+          },
+        ),
+      )
+      expectWeatherToolLoop(events)
+      expect(events.some(LLMEvent.is.toolInputDelta)).toBe(true)
+    }),
+  60_000,
+)
+
+recorded.effect(
+  "streams compatible chat reasoning",
+  () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLM.request({
+          model: cohere.chat("command-a-reasoning-08-2025"),
+          prompt: "What is 17 times 23? Answer briefly.",
+          providerOptions: { reasoningEffort: "high" },
+          generation: { maxTokens: 2048 },
+        }),
+      )
+      expect(response.reasoning.length).toBeGreaterThan(0)
+      expect(response.text).toContain("391")
+      expect(response.events.find(LLMEvent.is.finish)?.reason.normalized).toBe("stop")
+      expect(response.usage.inputTokens).toBeGreaterThan(0)
+      expect(response.usage.reasoningTokens).toBeGreaterThan(0)
+    }),
+  60_000,
+)

packages/ai/test/provider/cohere.test.ts

@@ -0,0 +1,272 @@
+import { expect, test } from "bun:test"
+import { Effect } from "effect"
+import { LLM, LLMClient, LLMEvent, Media, Message, SystemPart, isRetryable } from "../../src/index.js"
+import { Cohere } from "../../src/providers/cohere.js"
+import { compileRequest } from "../../src/route/client.js"
+import { it } from "../lib/effect.js"
+import { fixedResponse } from "../lib/http.js"
+import { sseEvents } from "../lib/sse.js"
+
+const cohere = Cohere.configure({ apiKey: "fixture" })
+
+test("Cohere exposes native and compatible endpoints without Core remapping", () => {
+  expect(cohere.model("command-a-03-2025").route.endpoint.baseURL).toBe("https://api.cohere.com/v2")
+  expect(cohere.chat("command-a-03-2025").route.endpoint.baseURL).toBe("https://api.cohere.ai/compatibility/v1")
+  expect(
+    Cohere.model("command-a-03-2025", { apiKey: "fixture", headers: { "X-Test": "yes" }, body: { temperature: 0 } })
+      .route.defaults?.http,
+  ).toMatchObject({ body: { temperature: 0 } })
+})
+
+it.effect("Cohere lowers native history, thinking, tools, and sampling", () =>
+  Effect.gen(function* () {
+    const prepared = yield* compileRequest(
+      LLM.request({
+        model: cohere.model("command-a-reasoning-08-2025"),
+        system: [SystemPart.make("Be concise.\nKeep this newline."), SystemPart.make("Second instructions.")],
+        messages: [
+          Message.user("Lookup Paris"),
+          Message.assistant([{ type: "tool-call", id: "lookup-1", name: "lookup", input: { city: "Paris" } }]),
+          Message.tool({ id: "lookup-1", name: "lookup", result: { sunny: true } }),
+        ],
+        tools: [{ name: "lookup", description: "Look up a city", inputSchema: { type: "object", properties: {} } }],
+        toolChoice: "required",
+        providerOptions: { thinking: { tokenBudget: 128 } },
+        generation: { maxTokens: 2048, topP: 0.9, topK: 10 },
+      }),
+    )
+    expect(prepared.body).toMatchObject({
+      model: "command-a-reasoning-08-2025",
+      stream: true,
+      p: 0.9,
+      k: 10,
+      max_tokens: 2048,
+      thinking: { type: "enabled", token_budget: 128 },
+      tool_choice: "REQUIRED",
+      messages: [
+        {
+          role: "system",
+          content: [
+            { type: "text", text: "Be concise.\nKeep this newline." },
+            { type: "text", text: "Second instructions." },
+          ],
+        },
+        { role: "user", content: [{ type: "text", text: "Lookup Paris" }] },
+        {
+          role: "assistant",
+          tool_calls: [{ id: "lookup-1", function: { name: "lookup", arguments: '{"city":"Paris"}' } }],
+        },
+        { role: "tool", tool_call_id: "lookup-1", content: '{"sunny":true}' },
+      ],
+    })
+  }),
+)
+
+it.effect("Cohere compatibility omits unsupported OpenAI fields", () =>
+  Effect.gen(function* () {
+    const prepared = yield* compileRequest(
+      LLM.request({
+        model: cohere.chat("command-a-reasoning-08-2025"),
+        prompt: "Hello",
+        providerOptions: { reasoningEffort: "high" },
+        generation: { maxTokens: 64 },
+      }),
+    )
+    expect(prepared.body).toMatchObject({ reasoning_effort: "high", max_tokens: 64, stream: true })
+    expect(prepared.body.stream_options).toEqual({ include_usage: true })
+    for (const key of ["store", "max_completion_tokens", "parallel_tool_calls", "prompt_cache_key"])
+      expect(prepared.body[key]).toBeUndefined()
+  }),
+)
+
+it.effect("Cohere maps inclusive usage while retaining distinct billed units", () =>
+  Effect.gen(function* () {
+    const response = yield* LLMClient.generate(
+      LLM.request({ model: cohere.model("command-a-03-2025"), prompt: "Hi" }),
+    ).pipe(
+      Effect.provide(
+        fixedResponse(
+          sseEvents(
+            { type: "message-start" },
+            { type: "content-start", index: 0, delta: { message: { content: { type: "thinking", thinking: "" } } } },
+            { type: "content-delta", index: 0, delta: { message: { content: { thinking: "Think" } } } },
+            { type: "content-end", index: 0 },
+            { type: "content-start", index: 1, delta: { message: { content: { type: "text", text: "" } } } },
+            { type: "content-delta", index: 1, delta: { message: { content: { text: "OK" } } } },
+            { type: "content-end", index: 1 },
+            {
+              type: "message-end",
+              delta: {
+                finish_reason: "COMPLETE",
+                usage: {
+                  tokens: { input_tokens: 100, output_tokens: 20, reasoning_tokens: 10 },
+                  billed_units: { input_tokens: 30, output_tokens: 15 },
+                  cached_tokens: 60,
+                },
+              },
+            },
+          ),
+        ),
+      ),
+    )
+    expect(response.text).toBe("OK")
+    expect(response.reasoning).toBe("Think")
+    expect(response.usage).toMatchObject({
+      inputTokens: 100,
+      nonCachedInputTokens: 40,
+      cacheReadInputTokens: 60,
+      outputTokens: 20,
+      reasoningTokens: 10,
+      totalTokens: 120,
+      providerMetadata: { cohere: { billed_units: { input_tokens: 30, output_tokens: 15 } } },
+    })
+    expect(response.events.filter(LLMEvent.is.finish)).toHaveLength(1)
+  }),
+)
+
+it.effect("Cohere rejects incomplete streams", () =>
+  Effect.gen(function* () {
+    const error = yield* LLMClient.generate(
+      LLM.request({ model: cohere.model("command-a-03-2025"), prompt: "Hi" }),
+    ).pipe(Effect.provide(fixedResponse(sseEvents({ type: "message-start" }))), Effect.flip)
+    expect(error.message).toContain("without message-end")
+  }),
+)
+
+it.effect("Cohere preserves native tool plans in continued history", () =>
+  Effect.gen(function* () {
+    const response = yield* LLMClient.generate(
+      LLM.request({ model: cohere.model("command-a-03-2025"), prompt: "Hi" }),
+    ).pipe(
+      Effect.provide(
+        fixedResponse(
+          sseEvents(
+            { type: "message-start" },
+            { type: "tool-plan-delta", delta: { message: { tool_plan: "Look up the weather." } } },
+            {
+              type: "tool-call-start",
+              index: 0,
+              delta: { message: { tool_calls: { id: "lookup-1", function: { name: "lookup", arguments: "" } } } },
+            },
+            {
+              type: "tool-call-delta",
+              index: 0,
+              delta: { message: { tool_calls: { function: { arguments: '{"city":"Paris"}' } } } },
+            },
+            { type: "tool-call-end", index: 0 },
+            { type: "message-end", delta: { finish_reason: "TOOL_CALL" } },
+          ),
+        ),
+      ),
+    )
+    expect(response.toolCalls[0]?.input).toEqual({ city: "Paris" })
+    const prepared = yield* compileRequest(
+      LLM.request({
+        model: cohere.model("command-a-03-2025"),
+        messages: [response.message, Message.tool({ id: "lookup-1", name: "lookup", result: { sunny: true } })],
+      }),
+    )
+    expect(prepared.body.messages).toMatchObject([
+      { role: "assistant", tool_plan: "Look up the weather.", tool_calls: [{ id: "lookup-1" }] },
+      { role: "tool", tool_call_id: "lookup-1" },
+    ])
+  }),
+)
+
+it.effect("Cohere rejects unsupported media instead of silently dropping it", () =>
+  Effect.gen(function* () {
+    const error = yield* compileRequest(
+      LLM.request({
+        model: cohere.model("command-a-03-2025"),
+        messages: [Message.user([{ type: "media", media: Media.base64("Zm9v", "audio/wav") }])],
+      }),
+    ).pipe(Effect.flip)
+    expect(error.reason._tag).toBe("InvalidRequest")
+  }),
+)
+
+it.effect("Cohere thinking budgets must be positive integers", () =>
+  Effect.gen(function* () {
+    const error = yield* compileRequest(
+      LLM.request({
+        model: cohere.model("command-a-reasoning-08-2025"),
+        providerOptions: { thinking: { tokenBudget: 0 } },
+      }),
+    ).pipe(Effect.flip)
+    expect(error.reason._tag).toBe("InvalidRequest")
+  }),
+)
+
+it.effect("Cohere fits thinking budgets under the output limit", () =>
+  Effect.gen(function* () {
+    const prepared = yield* compileRequest(
+      LLM.request({
+        model: cohere.model("command-a-reasoning-08-2025"),
+        prompt: "Hi",
+        providerOptions: { thinking: { tokenBudget: 31_999 } },
+        generation: { maxTokens: 4096 },
+      }),
+    )
+    expect(prepared.body.thinking).toEqual({ type: "enabled", token_budget: 2048 })
+  }),
+)
+
+// Bodies captured live on 2026-10-02, except 402 and 429, which are Cohere's documented messages.
+const errors = [
+  { status: 401, message: "Incorrect API key provided: ***-123.", tag: "Authentication", retry: false },
+  { status: 404, message: "model 'no-such-model-xyz' not found", tag: "InvalidRequest", retry: false },
+  {
+    status: 400,
+    message: "invalid request: temperature must be between 0 and 2.0 inclusive.",
+    tag: "InvalidRequest",
+    retry: false,
+  },
+  {
+    status: 400,
+    error_type: "TOO_MANY_TOKENS",
+    message: "too many tokens: size limit exceeded by 168512 tokens. The limit for this model is 132000 tokens.",
+    tag: "InvalidRequest",
+    classification: "context-overflow",
+    retry: false,
+  },
+  {
+    status: 400,
+    error_type: "TOO_MANY_TOKENS",
+    message:
+      "too many tokens: max tokens must be less than or equal to 4096, the maximum output length for this model - received 1000000.",
+    tag: "InvalidRequest",
+    retry: false,
+  },
+  { status: 402, message: "Please add or update your payment method to continue", tag: "QuotaExceeded", retry: false },
+  {
+    status: 429,
+    message: "You are using a Trial key, which is limited to 40 API calls / minute.",
+    tag: "RateLimit",
+    retry: true,
+  },
+  { status: 500, message: "internal server error", tag: "ProviderInternal", retry: true },
+]
+
+it.effect("Cohere HTTP errors map to AI error reasons", () =>
+  Effect.forEach(errors, (item) =>
+    Effect.gen(function* () {
+      const error = yield* LLMClient.generate(
+        LLM.request({ model: cohere.model("command-a-03-2025"), prompt: "Hi" }),
+      ).pipe(
+        Effect.provide(
+          fixedResponse(JSON.stringify({ id: "fixture", error_type: item.error_type, message: item.message }), {
+            status: item.status,
+            headers: { "content-type": "application/json" },
+          }),
+        ),
+        Effect.flip,
+      )
+      expect({
+        message: error.message,
+        tag: error.reason._tag,
+        classification: error.reason._tag === "InvalidRequest" ? error.reason.classification : undefined,
+        retry: isRetryable(error),
+      }).toEqual({ message: item.message, tag: item.tag, classification: item.classification, retry: item.retry })
+    }),
+  ),
+)

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

@@ -1,7 +1,7 @@
 import { describe, expect, test } from "bun:test"
 import { ConfigProvider, Effect } from "effect"
 import { HttpClientRequest } from "effect/unstable/http"
-import { LLM, LLMEvent, Message, ToolDefinition, Media } from "../../src/index.js"
+import { LLM, LLMEvent, Message, SystemPart, ToolDefinition, Media } from "../../src/index.js"
 import { Mistral } from "../../src/providers/index.js"
 import { MistralChat } from "../../src/protocols/index.js"
 import { LLMClient } from "../../src/route.js"
@@ -41,7 +41,7 @@ describe("Mistral Chat", () => {
       const prepared = yield* compileRequest(
         LLM.request({
           model,
-          system: "Initial",
+          system: [SystemPart.make("Initial\nKeep this newline."), SystemPart.make("Second instructions.")],
           messages: [
             Message.system("Updated"),
             Message.user([
@@ -105,7 +105,13 @@ describe("Mistral Chat", () => {
         reasoning_effort: "high",
       })
       expect(prepared.body.messages.slice(0, 4)).toMatchObject([
-        { role: "system", content: "Initial" },
+        {
+          role: "system",
+          content: [
+            { type: "text", text: "Initial\nKeep this newline." },
+            { type: "text", text: "Second instructions." },
+          ],
+        },
         { role: "user", content: "<system-update>\nUpdated\n</system-update>" },
         {
           role: "user",

packages/ai/test/provider/mistral.recorded.test.ts

@@ -1,7 +1,7 @@
 import { configure } from "@opencode/ai/providers/mistral"
 import { describe, expect } from "bun:test"
 import { Effect } from "effect"
-import { LLM, LLMEvent, LLMRequest, Message, ToolChoice, ToolDefinition } from "../../src/index.js"
+import { LLM, LLMEvent, LLMRequest, Message, SystemPart, ToolChoice, ToolDefinition } from "../../src/index.js"
 import { LLMClient } from "../../src/route.js"
 import { compileRequest } from "../../src/route/client.js"
 import { recordedTests } from "../recorded-test.js"
@@ -97,7 +97,10 @@ describe("Mistral recorded", () => {
         const model = configure({ apiKey, providerOptions: { reasoningEffort: "none" } }).model("mistral-small-latest")
         const firstRequest = LLM.request({
           model,
-          system: "Call lookup_weather exactly once with Paris.",
+          system: [
+            SystemPart.make("Call lookup_weather exactly once with Paris."),
+            SystemPart.make("After the tool result, describe the weather briefly."),
+          ],
           prompt: "What is the weather?",
           tools: [weather],
           toolChoice: weather,

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

@@ -2205,7 +2205,7 @@ describe("OpenAI Chat route", () => {
       )
 
       expect((yield* Ref.get(events)).some((event) => event.type === "text-delta")).toBeTrue()
-      expect(error.message).toBe("ECONNRESET: socket closed unexpectedly")
+      expect(error.message).toBe("Connection lost while reading the response: ECONNRESET: socket closed unexpectedly")
       expect(error.reason).toMatchObject({
         _tag: "Transport",
         transport: "http",
@@ -2223,7 +2223,7 @@ describe("OpenAI Chat route", () => {
         Effect.flip,
       )
 
-      expect(error.message).toBe("ECONNRESET: socket closed before output")
+      expect(error.message).toBe("Connection lost while reading the response: ECONNRESET: socket closed before output")
       expect(error.reason).toMatchObject({
         _tag: "Transport",
         transport: "http",

packages/ai/tsconfig.json

@@ -2,6 +2,7 @@
   "$schema": "https://json.schemastore.org/tsconfig.json",
   "extends": "@tsconfig/bun/tsconfig.json",
   "compilerOptions": {
+    "noUnusedLocals": true,
     "module": "NodeNext",
     "moduleResolution": "NodeNext",
     "allowImportingTsExtensions": false,

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

@@ -0,0 +1,61 @@
+import { fileURLToPath } from "node:url"
+import { expect, story } from "../../storybook/playwright/story"
+
+const source = (path: string) => `/@fs/${fileURLToPath(new URL(path, import.meta.url)).replaceAll("\\", "/")}`
+const modules = {
+  fixture: source("../../gui-extensions/src/browser/panel.fixture.tsx"),
+  host: source("../src/runtime/extension/host.tsx"),
+  panels: source("../src/runtime/extension/panels.tsx"),
+  language: source("../src/runtime/i18n/language.tsx"),
+  browser: source("../../gui-extensions/src/browser/index.ts"),
+  browserRenderer: source("../../gui-extensions/src/browser/renderer.tsx"),
+  file: source("../../gui-extensions/src/file/index.ts"),
+  fileRenderer: source("../../gui-extensions/src/file/renderer.tsx"),
+}
+
+story(
+  "keeps a restored browser tab selected and undrawn until the desktop's first inventory",
+  async ({ mount, page }) => {
+    // Any story loads the app styles; the fixture mounts the real side region and extensions beside it.
+    await mount("ui-line-comment--editor")
+    await page.evaluate(async (modules) => {
+      const [{ mountBrowserRegion }, host, panels, language, browser, file] = await Promise.all([
+        import(modules.fixture),
+        import(modules.host),
+        import(modules.panels),
+        import(modules.language),
+        import(modules.browser),
+        import(modules.file),
+      ])
+      mountBrowserRegion({
+        LanguageProvider: language.LanguageProvider,
+        ExtensionHostProvider: host.ExtensionHostProvider,
+        useExtensionHost: host.useExtensionHost,
+        createRegion: panels.createRegion,
+        definitions: [
+          { ...browser.default, renderer: () => import(modules.browserRenderer) },
+          { ...file.default, renderer: () => import(modules.fileRenderer) },
+        ],
+      })
+    }, modules)
+    const root = page.getByTestId("browser-region-fixture")
+    const tabs = root.getByRole("tab")
+    const tree = root.getByTestId("tree")
+    await expect(root.getByText("Registrations: 1", { exact: true })).toBeVisible()
+    await expect(tabs).toHaveText(["alpha.ts"])
+    await expect(tree).toHaveText('{"tab":"changes"}')
+
+    // Beta was left on its browser tab, which the desktop has not reported yet.
+    await root.getByRole("button", { name: "Beta", exact: true }).click()
+    await expect(root.getByText("Registrations: 2", { exact: true })).toBeVisible()
+    await expect(root.getByTestId("selected")).toHaveText(/^browser:tab_/)
+    await expect(tabs).toHaveText(["beta.ts"])
+    // No fallback tab was selected, so the file tab's selection never switched the tree to All files.
+    await expect(tree).toHaveText('{"tab":"changes"}')
+
+    await root.getByRole("button", { name: "First inventory", exact: true }).click()
+    await expect(tabs).toHaveText(["beta.ts", "Preview"])
+    await expect(root.getByRole("tab", { name: "Preview", exact: true })).toHaveAttribute("aria-selected", "true")
+    await expect(tree).toHaveText('{"tab":"changes"}')
+  },
+)

packages/app/e2e/performance/timeline-stability/lifecycle.spec.ts

@@ -1,7 +1,6 @@
 import { expect, test } from "@playwright/test"
 import {
   defineVisualRegions,
-  mapVisualRegions,
   reportVisualStability,
   startVisualProbe,
   stopVisualProbe,

packages/app/e2e/performance/timeline-stability/scroll-interaction.spec.ts

@@ -242,7 +242,7 @@ test("keeps an older answer selected while scrolling within the interaction buff
 
 test("tracks keyboard scrolling from a focused timeline descendant", async ({ page }, testInfo) => {
   const shellID = "prt_descendant_keyboard_01_shell"
-  const timeline = await setupTimeline(page, {
+  await setupTimeline(page, {
     messages: [...history(12), userMessage(), assistantMessage([shell(shellID, "completed", lines(5))])],
     settings: { shellToolPartsExpanded: false },
     cpuRate: 4,

packages/app/e2e/performance/timeline-stability/transition-matrix.spec.ts

@@ -15,7 +15,6 @@ import {
   partUpdated,
   renderedPartID,
   setupTimeline,
-  shell,
   status,
   textPart,
   toolPart,

packages/app/e2e/performance/timeline/session-timeline-profile.ts

@@ -1,4 +1,4 @@
-import type { CDPSession, Page } from "@playwright/test"
+import type { Page } from "@playwright/test"
 import path from "node:path"
 import { mkdir, writeFile } from "node:fs/promises"
 

packages/app/e2e/regression/composer.spec.ts

@@ -183,6 +183,35 @@ test("keeps a narrow session composer contained when invoking a built-in", async
   await expect(editor).toHaveText("keep me")
 })
 
+test("lists slash commands in their built-in order", async ({ page }) => {
+  const { editor } = await openSession(page, {
+    name: "ComposerSlash",
+    provider: NO_PROVIDER,
+    commands: [
+      { name: "init", description: "Create AGENTS.md" },
+      { name: "review", description: "Review changes" },
+    ],
+    // A sent message enables /undo, /compact and /fork.
+    pageMessages: () => ({ items: [{ id: "msg_slash", type: "user", text: "Hello", time: { created: T0 } }] }),
+  })
+  await editor.fill("/")
+  await expect(page.locator('[data-component="composer-suggestions"] [data-suggestion-id] bdi')).toHaveText([
+    "/init",
+    "/review",
+    "/new",
+    "/undo",
+    "/compact",
+    "/fork",
+    "/export",
+    "/open",
+    "/terminal",
+    "/mcp",
+    "/model",
+    "/connect",
+    "/btw",
+  ])
+})
+
 const followUp = "Add follow-up, / for commands, @ for context…"
 for (const row of [
   { state: "an idle", copy: "Ask anything, / for commands, @ for context…" },

packages/app/e2e/regression/mobile-extensions.spec.ts

@@ -37,6 +37,17 @@ test("mobile files browse, comment, search, and close tabs", async ({ page }) =>
   await expect.poll(() => fullWidth(comment)).toBe(true)
 
   await page.setViewportSize({ width: 390, height: 844 })
+  // Its composer chip reveals the comment without leaving the conversation.
+  const session = navigation.getByRole("tab", { name: "Session", exact: true })
+  await session.click()
+  await page
+    .locator('[data-component="composer-attachments"]')
+    .getByText("Full-width file comment", { exact: true })
+    .click()
+  await expect(session).toHaveAttribute("aria-selected", "true")
+  await expect(page.getByRole("textbox", { name: "Prompt", exact: true })).toBeVisible()
+  await navigation.getByRole("tab", { name: "Files", exact: true }).click()
+  await expect(files.getByText("contents:first.ts", { exact: true })).toBeVisible()
   const filter = files.getByRole("combobox", { name: "Filter files", exact: true })
   await expect(filter).toBeHidden()
   await files.getByRole("button", { name: "All files", exact: true }).click()

packages/app/e2e/regression/mobile-session.spec.ts

@@ -221,6 +221,54 @@ test("the summary's changes row switches the view and keeps the side tabs", asyn
 
   await page.setViewportSize({ width: 1280, height: 900 })
   await expect(readme).toHaveAttribute("aria-selected", "true")
+
+  // After a reload forgets the preview, a stored Open file tab is still the slot a narrow-screen file open replaces.
+  const launcher = panel.getByRole("tab", { name: "Open file", exact: true })
+  await panel.getByRole("button", { name: "Open file", exact: true }).click()
+  await expect(launcher).toHaveAttribute("aria-selected", "true")
+  await expect(readme).toHaveCount(0)
+  await page.reload()
+  await expect(launcher).toHaveAttribute("aria-selected", "true")
+  await page.setViewportSize({ width: 390, height: 844 })
+  await tabs.getByRole("tab", { name: "Files", exact: true }).click()
+  const files = page.locator('[data-slot="session-mobile-files"]')
+  await files.getByRole("button", { name: "README.md", exact: true }).click()
+  await expect(files.getByText("contents:README.md", { exact: true })).toBeVisible()
+  await page.setViewportSize({ width: 1280, height: 900 })
+  await expect(readme).toHaveAttribute("aria-selected", "true")
+  await expect(launcher).toHaveCount(0)
+})
+
+test("a narrow-screen palette pick keeps the view and dock, and the side region shows the file when wide", async ({
+  page,
+}) => {
+  await page.setViewportSize({ width: 390, height: 844 })
+  await mockStressTimeline(page, {
+    fileList: (path) => (path ? [] : [fileNode(fixture.directory, "README.md")]),
+    fileContent: (path) => ({ type: "text", content: `contents:${path}` }),
+    findFiles: ({ query }) => ("README.md".includes(query) ? [fileNode(fixture.directory, "README.md")] : []),
+    pty: {},
+  })
+  await openStress(page, { lastProject: { local: fixture.directory } })
+  await page.goto(sessionHref(fixture.targetID))
+
+  const tabs = page.getByRole("tablist", { name: "Session view", exact: true })
+  const terminal = page.locator("#terminal-panel")
+  await tabs.getByRole("tab", { name: "Terminal", exact: true }).click()
+  await expect(terminal.locator("textarea")).toBeEditable()
+  await page.keyboard.press("ControlOrMeta+p")
+  const dialog = page.getByRole("dialog")
+  await dialog.getByRole("textbox").fill("README")
+  await dialog.getByRole("option", { name: "/ README.md", exact: true }).click()
+  await expect(dialog).toHaveCount(0)
+  await expect(tabs.getByRole("tab", { selected: true })).toHaveText("Terminal")
+  await expect(terminal).toHaveAttribute("data-opened", "true")
+
+  await page.setViewportSize({ width: 1280, height: 900 })
+  await expect(terminal).toHaveAttribute("data-opened", "true")
+  const panel = page.locator("#review-panel")
+  await expect(panel.getByRole("tab", { name: "README.md", exact: true })).toHaveAttribute("aria-selected", "true")
+  await expect(panel.getByText("contents:README.md", { exact: true })).toBeVisible()
 })
 
 test.describe("touch", () => {

packages/app/e2e/regression/multi-server.spec.ts

@@ -90,6 +90,7 @@ test("settings opened from a remote session sweep every server and keep the remo
   await expect(page).toHaveURL("/settings")
   await expect(page.locator('[data-titlebar-tab][data-active="true"]')).toHaveCount(0)
   await expect(page.getByRole("dialog")).toHaveCount(0)
+  await expect(settings.getByRole("tab", { name: "Models", exact: true })).toHaveCount(0)
   await view.listed(REMOTE_SERVER, directoryB)
   await expect.poll(() => view.replies).toEqual([reply(sessionA.id, "permission-pending-a")])
 
@@ -112,6 +113,7 @@ test("settings opened from a remote session sweep every server and keep the remo
   await expect(page.locator('[data-titlebar-tab][data-active="true"]')).toContainText(sessionB.title)
   await page.keyboard.press("Control+]")
   await expect(page).toHaveURL("/settings")
+  await expect(settings.getByRole("tab", { name: "Preferences", exact: true })).toHaveAttribute("aria-selected", "true")
   await page.keyboard.press("Escape")
   await expectPath(page, sessionHref(sessionB.id, REMOTE_SERVER))
   await expectSessionTitle(page, sessionB.title)

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

@@ -220,13 +220,16 @@ for (const scenario of scenarios) {
                 const top = sessionTop + (group?.getBoundingClientRect().height ?? 0)
                 const rect = element.getBoundingClientRect()
                 const trigger = element.querySelector("button")!
+                // The header stuck directly below the session title sits where the title's fade starts.
+                const hits = (target: Element, box: DOMRect) =>
+                  [box.top + 1, box.top + box.height / 2].every((y) =>
+                    target.contains(document.elementFromPoint(box.left + box.width / 2, y)),
+                  )
                 return {
                   gap: Math.abs(rect.top - top - (toolTitle?.getBoundingClientRect().height ?? 0)),
                   groupGap: group ? Math.abs(group.getBoundingClientRect().top - sessionTop) : 0,
                   titleGap: toolTitle ? Math.abs(toolTitle.getBoundingClientRect().top - top) : 0,
-                  clickable: trigger.contains(
-                    document.elementFromPoint(rect.left + rect.width / 2, rect.top + rect.height / 2),
-                  ),
+                  clickable: hits(trigger, rect) && (!group || hits(group, group.getBoundingClientRect())),
                 }
               }),
             )

packages/app/e2e/regression/review.spec.ts

@@ -1,12 +1,36 @@
 import type { OpenCodeEvent, SessionMessageInfo } from "@opencode/client/promise"
 import { expect, test, type Locator, type Page } from "@playwright/test"
 import { base64Encode } from "@opencode/util/encode"
-import { workspaceKey } from "../utils/app"
+import { SERVER, project, provider, session, workspaceKey } from "../utils/app"
+import { mockOpenCodeServer } from "../utils/mock-server"
 import { fileDiff, fileNode, openSession } from "../utils/workspace"
 import { expectSessionTitle } from "../utils/waits"
 
 test.use({ viewport: { width: 1440, height: 900 } })
 
+for (const view of ["desktop", "mobile"] as const) {
+  test(`offers Git initialization for a project without VCS (${view})`, async ({ page }) => {
+    if (view === "mobile") await page.setViewportSize({ width: 390, height: 844 })
+    const requests: { directory: string; provider?: string }[] = []
+    const workspace = await openSession(page, {
+      name: "ReviewWithoutGit",
+      project: { vcs: undefined },
+      onVcsInit: (input) => requests.push(input),
+    })
+    if (view === "desktop") await page.getByRole("button", { name: "Toggle review" }).click()
+    else await page.getByRole("tablist", { name: "Session view" }).getByRole("tab", { name: "Changes" }).click()
+
+    const panel = view === "desktop" ? page.locator("#review-panel") : page.locator('[data-component="session-review"]')
+    await expect(panel.getByText("Track, review, and undo changes in this project")).toBeVisible()
+    await expect(panel.getByRole("button", { name: "Git changes" })).toHaveCount(0)
+    const init = panel.getByRole("button", { name: "Create Git repository" })
+    await init.click()
+    await expect.poll(() => requests).toEqual([{ directory: workspace.directory, provider: "git" }])
+    await expect(panel.getByRole("button", { name: "Git changes" })).toBeVisible()
+    await expect(init).toHaveCount(0)
+  })
+}
+
 test("open file tab browses, searches, and tracks missing files", async ({ page }) => {
   const searches: { query: string; dirs?: string; limit?: number }[] = []
   const directory = "C:/OpenCode/ReviewOpenFile"
@@ -603,6 +627,65 @@ test("keeps the review state a session stored before extensions", async ({ page
   await expect(trigger("gamma.ts")).toBeVisible()
 })
 
+test("desktop review waits for the session's stored mode before it loads changes", async ({ page }) => {
+  const directory = "C:/OpenCode/ReviewDesktop"
+  const id = "ses_review_desktop"
+  const title = "Desktop review"
+  await mockOpenCodeServer(page, {
+    directory,
+    project: project({ id: "proj_review_desktop", directory }),
+    provider: provider(),
+    sessions: [session({ id, directory, title })],
+    pageMessages: () => ({ items: [] }),
+    vcs: { current: "feature", default: "dev" },
+    vcsDiff: ({ mode }) => (mode === "branch" ? [fileDiff("beta.ts")] : [fileDiff("gamma.ts")]),
+  })
+  const working: string[] = []
+  page.on("request", (request) => {
+    const url = new URL(request.url())
+    if (url.pathname.endsWith("/vcs/diff") && url.searchParams.get("mode") === "working") working.push(request.url())
+  })
+  const desktop = (hold?: string) =>
+    `/e2e/utils/settings-wsl.html?${new URLSearchParams({
+      server: SERVER,
+      mode: "stopped",
+      storage: "async",
+      path: `/server/${base64Encode("sidecar")}/session/${id}`,
+      ...(hold && { hold }),
+    })}`
+  const mode = (name: string) => page.getByRole("button", { name, exact: true })
+  const file = page.locator('[data-slot="session-review-v2-file-name"]')
+  const toggle = page.getByRole("button", { name: "Toggle review", exact: true })
+
+  await page.goto(desktop())
+  await expectSessionTitle(page, title)
+  await toggle.click()
+  await mode("Git changes").click()
+  await page.getByRole("option", { name: "Branch changes" }).click()
+  await expect(file).toHaveText("beta.ts")
+  await expect
+    .poll(() =>
+      page.evaluate(() =>
+        Object.entries(localStorage).some(
+          ([key, value]) => key.includes("extension.review.session") && value.includes('"branch"'),
+        ),
+      ),
+    )
+    .toBe(true)
+
+  // The reopened window's review mounts before its session store has loaded.
+  working.length = 0
+  await page.goto(desktop("extension.review.session"))
+  await expectSessionTitle(page, title)
+  await expect(toggle).toHaveAttribute("aria-expanded", "true")
+  await expect(page.locator("#review-panel").getByText("Loading changes…", { exact: true })).toBeVisible()
+  await expect(mode("Git changes")).toHaveCount(0)
+  await page.getByRole("button", { name: "Load held storage" }).click()
+  await expect(mode("Branch changes")).toBeVisible()
+  await expect(file).toHaveText("beta.ts")
+  expect(working).toEqual([])
+})
+
 for (const direction of ["ltr", "rtl"] as const) {
   test(`review toggle stays at the header edge in ${direction}`, async ({ page }) => {
     await page.setViewportSize({ width: 1000, height: 900 })

packages/app/e2e/regression/session-summary.spec.ts

@@ -25,7 +25,7 @@ for (const custom of [false, true]) {
     await expect(tooltip.locator('[data-slot="keybind-v2-label"]')).toHaveText(
       custom ? ["F8"] : mac ? ["⇧", "⌘", "Y"] : ["Ctrl", "Shift", "Y"],
     )
-    for (const id of [fixture.targetID, fixture.sourceID]) {
+    for (const id of [fixture.sourceID, fixture.targetID, fixture.sourceID]) {
       await page.locator(`[data-titlebar-tab-link][href="${sessionHref(id)}"]`).click()
       const messages = id === fixture.sourceID ? fixture.expected.sourceMessageIDs : fixture.expected.targetMessageIDs
       await expect(

packages/app/e2e/regression/settings-wsl.spec.ts

@@ -43,6 +43,27 @@ for (const mode of ["failed", "stopped", "ready"] as const) {
   })
 }
 
+test("adding a WSL server while the WSL extension is down shows that WSL is unavailable", async ({ page }) => {
+  await mockOpenCodeServer(page, {
+    directory: "/repo",
+    project: project({ id: "proj_wsl_unavailable", directory: "/repo", name: "WSL project" }),
+    provider: NO_PROVIDER,
+    sessions: [],
+    pageMessages: () => ({ items: [] }),
+  })
+  await page.goto(`/e2e/utils/settings-wsl.html?${new URLSearchParams({ server: SERVER, mode: "ready" })}`)
+  const settings = page.getByTestId("settings-screen")
+  await expect(settings.getByRole("tab", { name: "Ubuntu", exact: true })).toHaveCount(1)
+  await page.getByRole("checkbox", { name: "WSL extension" }).uncheck()
+
+  await settings.getByRole("button", { name: "Add server", exact: true }).press("Enter")
+  await page.getByRole("menuitem", { name: "Add WSL server", exact: true }).click()
+  const dialog = page.getByRole("dialog")
+  await expect(dialog.getByRole("heading", { name: "WSL unavailable", exact: true })).toBeVisible()
+  await expect(dialog.getByText("OpenCode could not verify WSL on this machine.", { exact: true })).toBeVisible()
+  await expect(dialog.getByText("WSL is unavailable", { exact: true })).toBeVisible()
+})
+
 test("an open session's terminal follows its WSL server to the endpoint it restarts on", async ({ page }) => {
   const restarted = "http://127.0.0.1:4098"
   const directory = "/home/ubuntu/project"
@@ -131,6 +152,50 @@ test("WSL session and draft tabs outlive the extension going away until the serv
   await expect(tabs).toHaveCount(0)
 })
 
+test("an SSH host that asks for sign-in again opens the dialog once per selected tab", async ({ page }) => {
+  const directory = "/home/box/project"
+  const box = session({ id: "ses_ssh_offer", directory, title: "SSH offer session" })
+  const config = {
+    directory,
+    project: project({ id: "proj_ssh_offer", directory }),
+    provider: provider(),
+    sessions: [box],
+    pageMessages: () => ({ items: [] }),
+  }
+  await mockServers(page, { [SERVER]: { ...config, sessions: [] }, [REMOTE_SERVER]: config })
+  const path = `/server/${base64Encode("ssh:box")}/session/${box.id}`
+  await page.goto(
+    `/e2e/utils/settings-wsl.html?${new URLSearchParams({ server: SERVER, mode: "ready", ssh: REMOTE_SERVER, path })}`,
+  )
+  await expectSessionTitle(page, box.title)
+  const connects = page.getByLabel("SSH connects")
+  const signIn = page.getByRole("button", { name: "Require SSH sign-in" })
+  const authenticate = page.getByRole("button", { name: "Authenticate", exact: true })
+
+  // The first request on the tab opens sign-in by itself; the fixture's host connects without a prompt.
+  await signIn.click()
+  await expect(connects).toHaveText("1")
+  await expectSessionTitle(page, box.title)
+  // A later request on the same tab only offers the button.
+  await signIn.click()
+  await expect(authenticate).toBeVisible()
+  await expect(connects).toHaveText("1")
+  await authenticate.click()
+  await expect(connects).toHaveText("2")
+  await expectSessionTitle(page, box.title)
+
+  // Another tab selected and this one selected again is a new selection, even while the host was ready.
+  const tabs = page.locator("a[data-titlebar-tab-link]")
+  await page.getByRole("button", { name: "New session", exact: true }).click()
+  await expect(tabs).toHaveCount(2)
+  await expect(tabs.nth(1)).toHaveAttribute("href", /^\/new-session\?draftId=/)
+  await expect(page.getByRole("heading", { name: box.title })).toHaveCount(0)
+  await tabs.nth(0).click()
+  await expectSessionTitle(page, box.title)
+  await signIn.click()
+  await expect(connects).toHaveText("3")
+})
+
 test("an open session moves to the controller a new SSH sign-in creates", async ({ page }) => {
   const directory = "/home/box/project"
   const model = { id: "box-model", name: "Box Model" }

packages/app/e2e/regression/settings.spec.ts

@@ -1,7 +1,7 @@
 import { expect, test, type Page } from "@playwright/test"
 import type { ConfigEntry, OpenCodeEvent, WorktreeDirectory } from "@opencode/client/promise"
 import { NO_PROVIDER, REMOTE_SERVER, SERVER, holdRoute, project, session } from "../utils/app"
-import { mockRemoteServer, openSettings, type WorkspaceInput } from "../utils/workspace"
+import { mockRemoteServer, mockWorkspace, openSettings, type WorkspaceInput } from "../utils/workspace"
 
 const directory = "C:/Projects/settings-demo"
 const projectID = "proj_settings_demo"
@@ -65,6 +65,20 @@ test("settings has its own route and returns through app history", async ({ page
   await expect(settings).toBeHidden()
 })
 
+test("Ctrl+, opens settings as soon as the app loads", async ({ page }) => {
+  await mockWorkspace(page, {
+    name: "Settings demo",
+    directory,
+    provider: NO_PROVIDER,
+    sessions: [],
+    seed: { tabs: [] },
+  })
+  await page.goto("/")
+  await page.keyboard.press("Control+,")
+  await expect(page.getByTestId("settings-screen")).toBeVisible()
+  await expect(page).toHaveURL("/settings")
+})
+
 test("a settings page survives refresh", async ({ page }) => {
   const { settings } = await open(page)
   const appearance = settings.getByRole("tab", { name: "Appearance", exact: true })

packages/app/e2e/regression/side-panels.spec.ts

@@ -200,9 +200,11 @@ test("terminal stacks under review by default and spans the bottom when configur
   await expect
     .poll(() =>
       page.evaluate(() => {
-        const review = document.querySelector("#review-panel")!.getBoundingClientRect()
-        const terminal = document.querySelector("#terminal-panel")!.getBoundingClientRect()
-        const sidebar = document.querySelector('#review-panel [data-slot="session-review-v2-sidebar"]')!
+        const review = document.querySelector("#review-panel")?.getBoundingClientRect()
+        const terminal = document.querySelector("#terminal-panel")?.getBoundingClientRect()
+        const sidebar = document.querySelector('#review-panel [data-slot="session-review-v2-sidebar"]')
+        // The side region appears before its lazy review content after reload.
+        if (!review || !terminal || !sidebar) return false
         const gap = terminal.top - review.bottom
         return (
           terminal.left <= 9 &&

packages/app/e2e/regression/timeline-stream.spec.ts

@@ -543,6 +543,26 @@ test.describe("Working", () => {
     await expect(working).toHaveCount(0)
   })
 
+  test("keeps Working instead of Used 1 Thought while reasoning is the only activity", async ({ page }) => {
+    const timeline = await setupTimeline(page, {
+      messages: [
+        userMessage(),
+        assistantMessage([reasoningPart("prt_only_thought", "Still considering the answer.")], { completed: false }),
+      ],
+      settings: { timelineDetail: detailed },
+    })
+    const working = page.locator('[data-component="session-working"]')
+    const group = page.locator('[data-component="collapsed-tool-group"]')
+    await expect(working).toBeVisible()
+    await expect(group).toHaveCount(0)
+    await expect(page.getByRole("button", { name: "Used 1 Thought" })).toHaveCount(0)
+
+    await timeline.send(partUpdated(toolPart("prt_after_thought", "read", "running", { filePath: "package.json" })))
+    await expect(group).toBeVisible()
+    await expect(group).toHaveAttribute("data-timeline-part-ids", `${assistantID}:reasoning:0,prt_after_thought`)
+    await expect(working).toBeVisible()
+  })
+
   for (const name of ["shell", "patch", "subagent"] as const) {
     test(`hides Working during ${name} input and execution, then restores it on completion`, async ({ page }) => {
       const timeline = await setupTimeline(page, {

packages/app/e2e/utils/mock-api.ts

@@ -169,6 +169,7 @@ const Group = HttpApiGroup.make("mock")
   )
   .add(HttpApiEndpoint.get("formRequests", "/api/form", { success: Json }))
   .add(HttpApiEndpoint.get("vcs", "/api/vcs", { success: Json }))
+  .add(HttpApiEndpoint.post("vcsInit", "/api/vcs/init", { success: NoContent, error: Unsupported }))
   .add(HttpApiEndpoint.get("vcsStatus", "/api/vcs/status", { success: Json }))
   .add(HttpApiEndpoint.get("vcsBranches", "/api/vcs/branch", { success: Json }))
   .add(HttpApiEndpoint.get("vcsDiff", "/api/vcs/diff", { query: Query, success: Json }))

packages/app/e2e/utils/mock-server.ts

@@ -43,6 +43,8 @@ export interface MockServerConfig {
     cursor?: string
   }
   vcs?: { current: string; default: string }
+  // Initializes the mock project's VCS; without a handler this mutation answers 501.
+  onVcsInit?: (input: { directory: string; provider?: string }) => void
   vcsDiff?: unknown[] | ((input: { mode?: string }) => unknown[])
   // Benchmark latency only. Tests hold message pages with `beforeMessagesResponse`.
   messageDelay?: number
@@ -817,6 +819,24 @@ function mockHandlers(
             location: location(config),
             data: { branch: config.vcs ?? { current: "main", default: "main" } },
           }),
+        vcsInit: (ctx) => {
+          if (!config.onVcsInit) return unsupported("initialize VCS", "onVcsInit")
+          return Effect.sync(() => {
+            const url = new URL(ctx.request.url, "http://localhost")
+            const provider = url.searchParams.get("provider") ?? undefined
+            config.onVcsInit?.({ directory: requestDirectory(config, ctx.request), provider })
+            const project = config.project as { id: string; vcs?: string }
+            project.vcs = provider ?? "git"
+            state.emit([
+              {
+                id: "evt_vcs_initialized",
+                type: "worktree.updated",
+                created: Date.now(),
+                data: { projectID: project.id },
+              },
+            ])
+          }).pipe(Effect.andThen(noContent))
+        },
         vcsStatus: () => Effect.succeed({ location: location(config), data: [] }),
         vcsBranches: () => Effect.succeed({ location: location(config), data: ["main"] }),
         vcsDiff: (ctx) =>

packages/app/e2e/utils/settings-wsl.fixture.tsx

@@ -10,9 +10,10 @@ import { PlatformProvider, type Platform } from "../../src/runtime/platform/plat
 import { ServerConnection } from "../../src/runtime/server/registry"
 import { useExtensionServers } from "../../src/runtime/extension/servers"
 
-// `wsl` is the Ubuntu server's endpoint (default `server`); updating OpenCode restarts it on `restart` (default `wsl`).
-// `ssh` adds a saved SSH server `box`, ready on that endpoint with password `ssh-1`; each connect brings up a new
-// remote server with the next password (`ssh-2`, ...).
+// A desktop window. `wsl` is the Ubuntu server's endpoint (default `server`); updating OpenCode restarts it on `restart`
+// (default `wsl`). `ssh` adds a saved SSH server `box`, ready on that endpoint with password `ssh-1`; each connect
+// brings up a new remote server with the next password (`ssh-2`, ...). `storage=async` stores in localStorage behind
+// asynchronous reads like the desktop app's; reads of keys containing `hold` wait for "Load held storage".
 export function mount(input: {
   server: string
   mode: "failed" | "stopped" | "ready"
@@ -20,6 +21,8 @@ export function mount(input: {
   restart?: string | null
   path?: string | null
   ssh?: string | null
+  storage?: string | null
+  hold?: string | null
 }) {
   const root = document.getElementById("root")
   if (!root) throw new Error("Missing fixture root")
@@ -27,14 +30,28 @@ export function mount(input: {
   history.set({ value: input.path ?? "/settings", replace: true, scroll: false })
   const endpoint = { url: input.wsl ?? input.server }
   const ready = () => ({ kind: "ready" as const, url: endpoint.url, password: null })
+  const held = Promise.withResolvers<void>()
+  const storage = (name?: string) => {
+    const item = (key: string) => (name ? `${name}:${key}` : key)
+    return {
+      getItem: async (key: string) => {
+        if (input.hold && key.includes(input.hold)) await held.promise
+        return localStorage.getItem(item(key))
+      },
+      setItem: async (key: string, value: string) => localStorage.setItem(item(key), value),
+      removeItem: async (key: string) => localStorage.removeItem(item(key)),
+    }
+  }
   render(() => {
     const [store, setStore] = createStore<{
       calls: string[]
+      connects: number
       available: boolean
       state: WslServersState
       ssh: SshState
     }>({
       calls: [],
+      connects: 0,
       available: true,
       ssh: {
         revision: 0,
@@ -95,7 +112,6 @@ export function mount(input: {
         revision: state.revision + 1,
         servers: state.servers.map((server) => ({ ...server, ...item })),
       }))
-    const connects = { count: 1 }
     const methods: Record<string, Record<string, (input: { id?: string; name?: string }) => unknown>> = {
       wsl: {
         // Like main: stops the distro's server, updates OpenCode, then starts the server again on a new endpoint.
@@ -126,8 +142,8 @@ export function mount(input: {
       ssh: {
         // Like main: a connect opens a new tunnel to a remote server with a new password.
         start() {
-          connects.count += 1
-          setSsh({ stage: "ready", http: { url: input.ssh ?? "", password: `ssh-${connects.count}` } })
+          setStore("connects", (count) => count + 1)
+          setSsh({ stage: "ready", http: { url: input.ssh ?? "", password: `ssh-${store.connects + 1}` } })
           return store.ssh.revision
         },
       },
@@ -175,6 +191,7 @@ export function mount(input: {
       notify: async () => undefined,
       restart: unused,
       extensions: bridge,
+      ...(input.storage === "async" ? { storage } : {}),
     }
     function Interface() {
       const extensions = useExtensionServers()
@@ -221,6 +238,22 @@ export function mount(input: {
             >
               Drop SSH tunnel
             </button>
+            {/* A background reconnect that needs a password, as main reports it to every window. */}
+            <button
+              type="button"
+              onClick={() => {
+                setSsh({ stage: "authentication" })
+                publish("ssh")
+              }}
+            >
+              Require SSH sign-in
+            </button>
+            <output aria-label="SSH connects">{store.connects}</output>
+          </Show>
+          <Show when={input.hold}>
+            <button type="button" onClick={() => held.resolve()}>
+              Load held storage
+            </button>
           </Show>
           <Interface />
         </AppBaseProviders>

packages/app/e2e/utils/settings-wsl.html

@@ -15,6 +15,8 @@
         restart: query.get("restart"),
         path: query.get("path"),
         ssh: query.get("ssh"),
+        storage: query.get("storage"),
+        hold: query.get("hold"),
       })
     </script>
   </body>

packages/app/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@opencode/app",
-  "version": "2.0.21",
+  "version": "2.0.22",
   "description": "",
   "type": "module",
   "exports": {

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

@@ -30,14 +30,7 @@ import type { Upload } from "../attachments/uploads"
 import { CommentCard } from "@opencode/session-ui/comment-card"
 import { typeLabel } from "@opencode/session-ui/message-file"
 import { Skill } from "@opencode/schema/skill"
-import type {
-  ComposerAttachment,
-  ComposerComment,
-  ComposerOption,
-  ComposerPersistedState,
-  ComposerPrompt,
-  ComposerSuggestion,
-} from "../types"
+import type { ComposerAttachment, ComposerComment, ComposerOption, ComposerPrompt, ComposerSuggestion } from "../types"
 import type { ComposerEditorModel, ComposerSelectControl } from "./interaction"
 import { isAttachment } from "../prompt-parts"
 import "../attachments/attachments.css"

packages/app/src/composer/model.ts

@@ -448,8 +448,8 @@ function openComment(
       })
     })
   }
-  // The extension that owns the comment's origin reveals it (the review diff or a file tab).
-  links.open({ href: item.path, origin: item.commentOrigin, exact: true, session })
+  // The extension that owns the comment's origin reveals it (the review diff or a file tab), keeping the conversation.
+  links.open({ href: item.path, origin: item.commentOrigin, exact: true, background: true, session })
   if (item.commentOrigin === "review") return queueFocus()
   void Promise.resolve(files.load(item.path)).finally(() => queueFocus())
 }

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

@@ -35,7 +35,6 @@ import { useIntegrations } from "@/providers/catalog/integrations"
 import { CustomProviderForm } from "@/providers/credentials/dialog"
 import { ProviderModelGroup, ProviderModelIcon } from "@/providers/models/provider-group"
 import type { ModelSelection } from "@/providers/models/selection"
-import { OpenCodeLogo } from "@/providers/opencode-logo"
 import { decode64 } from "@/runtime/persistence/base64"
 import { SettingsList } from "@/settings/list"
 import { useTabs } from "@/shell/tabs/tabs"

packages/app/src/runtime/extension/commands.tsx

@@ -1,3 +1,4 @@
+import { createMemo } from "solid-js"
 import { Command } from "@opencode/gui-extensions/sdk"
 import { useCommand } from "@/shell/commands/command"
 import { useSettings } from "@/settings/model"
@@ -9,27 +10,34 @@ export function ExtensionCommands() {
   const host = useExtensionHost()
   const command = useCommand()
   migrateKeybinds(useSettings())
+  // Extensions activate in whatever order their entries load; list them in definition order, then registration order.
+  const rank = createMemo(() => new Map(host.definitions().map((definition, index) => [definition.id, index])))
+  const order = (extension: string) => rank().get(extension) ?? rank().size
   command.register("extensions", () =>
-    host.items(Command).map((item) => ({
-      id: `${item.extension}.${item.value.id}`,
-      title: item.value.title,
-      description: item.value.description,
-      category: item.value.group,
-      section: item.value.section,
-      keybind: item.value.bind,
-      slash: item.value.slash?.name,
-      slashArguments: item.value.slash?.arguments,
-      suggested: item.value.suggested,
-      featured: item.value.featured,
-      disabled: item.value.enabled === false,
-      hidden: item.value.hidden,
-      editable: item.value.editable,
-      when: item.value.scope
-        ? (event: KeyboardEvent) =>
-            event.target instanceof Element && !!event.target.closest(item.value.scope as string)
-        : undefined,
-      onSelect: (_source: unknown, input?: string) => item.value.run(input),
-    })),
+    host
+      .items(Command)
+      .toSorted((a, b) => order(a.extension) - order(b.extension))
+      .map((item) => ({
+        id: `${item.extension}.${item.value.id}`,
+        title: item.value.title,
+        description: item.value.description,
+        category: item.value.group,
+        section: item.value.section,
+        keybind: item.value.bind,
+        slash: item.value.slash?.name,
+        slashArguments: item.value.slash?.arguments,
+        slashAfter: item.value.slash?.after,
+        suggested: item.value.suggested,
+        featured: item.value.featured,
+        disabled: item.value.enabled === false,
+        hidden: item.value.hidden,
+        editable: item.value.editable,
+        when: item.value.scope
+          ? (event: KeyboardEvent) =>
+              event.target instanceof Element && !!event.target.closest(item.value.scope as string)
+          : undefined,
+        onSelect: (_source: unknown, input?: string) => item.value.run(input),
+      })),
   )
   return null
 }

packages/app/src/runtime/extension/panels.tsx

@@ -137,9 +137,12 @@ export function createRegion(input: { region: Panel["region"]; view: SessionView
     ]
   })
 
+  // Narrow screens never select a launcher: a stored one falls back like a missing tab.
+  const desktop = createMediaQuery("(min-width: 768px)")
   const active = createMemo(() => {
     const value = input.tabs().active()
-    if (value && strip().some((entry) => entry.key === value)) return value
+    if (value && strip().some((entry) => entry.key === value && (desktop() || entry.tab.kind !== "launcher")))
+      return value
     return strip()
       .filter((entry) => entry.tab.fallback !== undefined)
       .reduce<RegionEntry | undefined>(
@@ -157,10 +160,13 @@ export function createRegion(input: { region: Panel["region"]; view: SessionView
     }),
   )
 
+  // Hidden tabs keep their place in the strip for selection, focus, and close, but draw no trigger.
+  const drawn = createMemo(() => strip().filter((entry) => !entry.tab.hidden))
+
   return {
     entries,
-    /** Strip order by key. Renders iterate keys so a provider's fresh tab objects never remount a trigger. */
-    keys: createMemo(() => strip().map((entry) => entry.key), [], { equals: same }),
+    /** Drawn strip order by key. Renders iterate keys so a provider's fresh tab objects never remount a trigger. */
+    keys: createMemo(() => drawn().map((entry) => entry.key), [], { equals: same }),
     entry: (key: string) => byKey().get(key),
     active,
     selected: createMemo(() => {
@@ -171,7 +177,7 @@ export function createRegion(input: { region: Panel["region"]; view: SessionView
     /** An extension's tab ids in the stored strip. */
     openFor: (extension: string) =>
       stored().flatMap((key) => (key.startsWith(`${extension}:`) ? [key.slice(extension.length + 1)] : [])),
-    lead: () => !!strip().find((entry) => entry.tab.kind !== "pinned")?.tab.first,
+    lead: () => !!drawn().find((entry) => entry.tab.kind !== "pinned")?.tab.first,
     select(key: string) {
       input.tabs().setActive(key)
     },
@@ -219,7 +225,7 @@ export function RegionContent(props: {
                 <div
                   id={member()?.tab.dom?.panel}
                   role="tabpanel"
-                  aria-labelledby={active() ? member()?.tab.dom?.tab : undefined}
+                  aria-labelledby={active() && !member()?.tab.hidden ? member()?.tab.dom?.tab : undefined}
                   data-slot="tabs-content"
                   class="h-full min-h-0 overflow-hidden"
                   classList={{ hidden: !active() }}
@@ -251,7 +257,7 @@ export function RegionContent(props: {
                 <div
                   id={entry()?.tab.dom?.panel}
                   role="tabpanel"
-                  aria-labelledby={entry()?.tab.dom?.tab}
+                  aria-labelledby={entry()?.tab.hidden ? undefined : entry()?.tab.dom?.tab}
                   tabIndex={entry()?.tab.tabbable ? 0 : undefined}
                   data-slot="tabs-content"
                   class="flex flex-col h-full overflow-hidden contain-strict"

packages/app/src/runtime/extension/services.tsx

@@ -81,7 +81,9 @@ export function createExtensionServices() {
   const platform = usePlatform()
   const dialog = useDialog()
   const language = useLanguage()
-  const narrow = createMediaQuery("(max-width: 767px)")
+  // The session screen's breakpoint, negated, so no fractional width is both narrow and desktop.
+  const desktop = createMediaQuery("(min-width: 768px)")
+  const narrow = () => !desktop()
   const [attached, setAttached] = createSignal<Attached>()
   const removed = new Set<(value: { server: string; directory: string }) => void>()
   const memory = new Map<string, readonly [Store<object>, (mutation: (draft: object) => void) => void]>()
@@ -286,12 +288,11 @@ export function createExtensionAttachment(services: ExtensionServices) {
   const host = useExtensionHost()
   const command = useCommand()
   const location = useLocation()
-  const narrow = createMediaQuery("(max-width: 767px)")
+  const desktop = createMediaQuery("(min-width: 768px)")
+  const narrow = () => !desktop()
   const views = new Map<string, SessionView>()
   const [mounted, setMounted] = createStore({ revision: 0 })
   const refs = new Map<string, SessionRef>()
-  // The panel whose toggle opened a session's side region, by session key.
-  const openedFor = new Map<string, string>()
 
   const connection = (id: string) => global.servers.list().find((item) => ServerConnection.key(item) === id)
 
@@ -371,11 +372,15 @@ export function createExtensionAttachment(services: ExtensionServices) {
     return Array.from(refs.values())
   })
 
-  const current = createMemo(() => {
+  const routed = createMemo(() => {
     const value = route()
-    if (value.type !== "session") return
+    return value.type === "session" ? `${value.server}\n${value.sessionId}` : undefined
+  })
+  const current = createMemo(() => {
+    const key = routed()
+    if (!key) return
     void mounted.revision
-    return views.get(`${value.server}\n${value.sessionId}`)
+    return views.get(key)
   })
 
   const scope = (id: string) => {
@@ -398,13 +403,19 @@ export function createExtensionAttachment(services: ExtensionServices) {
   const sideOpened = (session: SessionRef) => !!tabs.pane(shellTab(session), "side")
   const dockOpened = (session: SessionRef) => !!tabs.pane(shellTab(session), "dock")
   const setDock = (session: SessionRef, opened: boolean) => tabs.setPane(shellTab(session), "dock", opened)
-  // However the side region closes, it forgets its opener, so a region reopened any other way belongs to the user.
-  createEffect(() => {
-    const open = new Set(sessions().flatMap((session) => (sideOpened(session) ? [session.key] : [])))
-    Array.from(openedFor.keys()).forEach((key) => {
-      if (!open.has(key)) openedFor.delete(key)
-    })
-  })
+  // A token per session whose side region is open, new each time the region opens.
+  const sideVisits = createMemo<ReadonlyMap<string, object>>(
+    (previous) =>
+      new Map(
+        sessions().flatMap((session) =>
+          sideOpened(session) ? [[session.key, previous.get(session.key) ?? {}] as const] : [],
+        ),
+      ),
+    new Map(),
+  )
+  // The panel whose toggle opened a side region, by the region's token. However the region closes, it reopens with
+  // a new token, so a region reopened any other way belongs to the user.
+  const openedFor = new WeakMap<object, string>()
 
   // Keys are `${extension}:${tab id}`; the extension's panel decides the region.
   const provider = (key: string) => {
@@ -417,19 +428,18 @@ export function createExtensionAttachment(services: ExtensionServices) {
     return view?.key === session.key ? view : undefined
   }
 
-  // The narrow-screen view belongs to the routed, mounted session: it resets to the conversation when that session
-  // changes or unmounts (e.g. on Home). The dock's view follows the dock's own per-session state instead.
-  const [mobile, setMobile] = createStore({ session: undefined as string | undefined, view: "session" })
-  createEffect(
-    on(
-      () => current()?.key,
-      (key) => {
-        if (key !== mobile.session) setMobile({ session: undefined, view: "session" })
-      },
-    ),
+  // Counts routing visits: each change of the routed session, including to none (e.g. Home), starts the next one.
+  const visit = createMemo(on(routed, (_key, _previous, count: number = 0) => count + 1))
+  // The narrow-screen view belongs to the routed, mounted session for one visit, and reads as the conversation once
+  // another visit starts. A view selected for a session that is not routed (e.g. a file link that opens Files on
+  // another session) belongs to the next visit, which the navigation that follows starts. The dock's view follows
+  // the dock's own per-session state instead.
+  const [mobile, setMobile] = createStore({ session: undefined as string | undefined, view: "session", visit: 0 })
+  const mobileView = createMemo(() =>
+    mobile.session === current()?.key && mobile.visit === visit() ? mobile.view : "session",
   )
-  const mobileView = createMemo(() => (mobile.session === current()?.key ? mobile.view : "session"))
-  const selectMobile = (session: SessionRef, view: string) => setMobile({ session: session.key, view })
+  const selectMobile = (session: SessionRef, view: string) =>
+    setMobile({ session: session.key, view, visit: session.key === routed() ? visit() : visit() + 1 })
 
   // The side tabs a mounted session lists right now, plus `adding` as if it were stored; unmounted sessions have none.
   const listed = (session: SessionRef, value: string, adding?: string) => {
@@ -449,20 +459,17 @@ export function createExtensionAttachment(services: ExtensionServices) {
     )
   }
 
-  const open = (
-    key: string,
-    session: SessionRef,
-    options?: { readonly preview?: boolean; readonly focus?: boolean; readonly select?: boolean },
-  ) => {
+  const open = (key: string, session: SessionRef, options?: Parameters<Layout["open"]>[2]) => {
     const item = provider(key)
     if (item?.value.region === "dock") return setDock(session, true)
     const value = stateKey(session)
     if (!value) return
     // focus: false adds the tab quietly: no selection, no region change, no preview replacement.
     if (options?.focus === false && !options.preview) return layout.panel.append(value, key)
+    // A select keeps the narrow-screen view and dock, as a background open does, and opens the side region too.
     if (options?.select)
       return batch(() => {
-        if (!narrow()) tabs.setPane(shellTab(session), "side", true)
+        tabs.setPane(shellTab(session), "side", true)
         layout.panel.append(value, key)
         layout.panel.focus(value, key)
       })
@@ -471,13 +478,14 @@ export function createExtensionAttachment(services: ExtensionServices) {
     const launchers = new Set(known.flatMap((entry) => (entry.tab.kind === "launcher" ? [entry.key] : [])))
     const first = known.some((entry) => entry.key === key && entry.tab.first)
     batch(() => {
-      if (narrow()) {
+      if (narrow() && !options?.background) {
         setDock(session, false)
         if (item?.value.mobile) selectMobile(session, `${item.extension}:${item.value.id}`)
-        // A tab its panel does not list on narrow screens stays unstored: the open only selects the panel's view.
-        if (mountedView(session) && !known.some((entry) => entry.key === key)) return
+        // A tab its panel does not list, or a launcher, stays unstored: the open only selects the panel's view.
+        if (mountedView(session) && !known.some((entry) => entry.key === key && entry.tab.kind !== "launcher")) return
       }
-      if (!narrow()) tabs.setPane(shellTab(session), "side", true)
+      // A background open keeps the narrow-screen view, but its tab still shows once the window is wide.
+      if (!narrow() || options?.background) tabs.setPane(shellTab(session), "side", true)
       // Pinned tabs are listed without being stored; opening one only selects it.
       if (known.some((entry) => entry.key === key && entry.tab.kind === "pinned")) return layout.panel.focus(value, key)
       if (options?.preview) return layout.panel.preview(value, key, launchers)
@@ -569,19 +577,21 @@ export function createExtensionAttachment(services: ExtensionServices) {
         if (provider(key)?.value.region === "dock") return setDock(session, !dockOpened(session))
         const value = stateKey(session)
         if (!value) return
+        const region = sideVisits().get(session.key)
         if (state(key, session) === "visible") {
           batch(() => {
             close(key, session)
             // Closing the last panel the region was opened for also closes the region.
-            if (openedFor.get(session.key) === key && layout.panel.state(value).all.length === 0)
+            if (region && openedFor.get(region) === key && layout.panel.state(value).all.length === 0)
               tabs.setPane(shellTab(session), "side", false)
           })
           return
         }
-        const opening = !sideOpened(session)
-        if (!opening) openedFor.delete(session.key)
+        // A panel opened into an open region makes the region the user's.
+        if (region) openedFor.delete(region)
         open(key, session)
-        if (opening && sideOpened(session)) openedFor.set(session.key, key)
+        const opened = sideVisits().get(session.key)
+        if (!region && opened) openedFor.set(opened, key)
       },
       state,
       stored(extension, session) {

packages/app/src/runtime/extension/surface.tsx

@@ -5,6 +5,9 @@ import { createResizeObserver } from "@solid-primitives/resize-observer"
 import type { SurfaceProps, Surfaces } from "@opencode/gui-extensions/sdk"
 import type { Bridge } from "@opencode/gui-extensions/sdk/bridge"
 
+const geometry =
+  /^(inset|left|right|top|bottom|translate|transform|scale|rotate|margin|padding|flex|grid|gap|row-gap|column-gap)|(^|-)(width|height)$/
+
 type Input = {
   readonly bridge: Bridge | undefined
   readonly zoom: () => number
@@ -164,6 +167,14 @@ function SurfaceView(props: SurfaceProps & { input: Input; bridge: Bridge }) {
   // animation frame keeps the native view in step with a pane drag.
   createResizeObserver(() => element, measure)
   createEventListener(window, "resize", () => schedule(300))
+  // A layout transition elsewhere, such as the chat column's width while the side pane opens, can
+  // move the box without resizing it. Track it from when it actually runs, and settle on its end.
+  createEventListener(document, "transitionrun", (event) => {
+    if (geometry.test(event.propertyName)) schedule(300)
+  })
+  createEventListener(document, ["transitionend", "transitioncancel"], (event) => {
+    if (geometry.test(event.propertyName)) schedule()
+  })
   // Floating content portals directly into <body>; keep measuring briefly so
   // the positioner has settled before the overlap check runs.
   const portals = new MutationObserver(() => schedule(300))

packages/app/src/session/session-identity-header.tsx

@@ -30,12 +30,17 @@ import "./session-identity-header.css"
 
 export function SessionTitleHeader(props: ParentProps) {
   return (
-    <div
-      data-session-title
-      class="sticky top-0 z-30 w-full bg-[linear-gradient(to_bottom,var(--v2-background-bg-base)_48px,transparent)] pb-4 pe-3 ps-2.5"
-    >
-      {props.children}
-    </div>
+    <>
+      {/* The bottom inset reserves room for the fade without covering rows stuck below the bar. */}
+      <div data-session-title class="pointer-events-none sticky top-0 z-30 w-full pb-4">
+        <div class="pointer-events-auto bg-v2-background-bg-base pe-3 ps-2.5">{props.children}</div>
+      </div>
+      {/* Stuck timeline headers stack above this fade, so it only fades content scrolling under the bar. */}
+      <div
+        aria-hidden="true"
+        class="pointer-events-none sticky top-12 z-[5] -mt-4 h-4 w-full bg-[linear-gradient(to_bottom,var(--v2-background-bg-base),transparent)]"
+      />
+    </>
   )
 }
 

packages/app/src/settings/general/general.tsx

@@ -2,7 +2,6 @@ import { Component, Show, createMemo, createResource } from "solid-js"
 import { createMediaQuery } from "@solid-primitives/media"
 import { Select } from "@opencode/ui/select"
 import { Switch } from "@opencode/ui/switch"
-import { TextInput } from "@opencode/ui/text-input"
 import { TimelineDetailControl } from "@/settings/timeline-detail"
 import { useLanguage } from "@/runtime/i18n/language"
 import { usePlatform } from "@/runtime/platform/platform"
@@ -14,42 +13,12 @@ import {
   useSettings,
 } from "@/settings/model"
 import { formatKeybind } from "@/shell/commands/command"
-import { ExternalLink } from "@/runtime/platform/external-link"
 import { SettingsList } from "@/settings/list"
 import { SettingsRow } from "@/settings/row"
-import {
-  createAppearanceSettingsController,
-  createShellOptions,
-  type AppearanceSettingsController,
-  type ShellSettingsController,
-} from "./controllers"
+import { createShellOptions, type ShellSettingsController } from "./controllers"
 import "@/settings/settings.css"
 
-const schemeOptions: ("system" | "light" | "dark")[] = ["system", "light", "dark"]
 const tabLayoutOptions: ("horizontal" | "vertical")[] = ["horizontal", "vertical"]
-const fontSettings = {
-  ui: {
-    action: "settings-ui-font",
-    title: "settings.general.row.uiFont.title",
-    description: "settings.general.row.uiFont.description",
-    font: "ui",
-    input: "setUI",
-  },
-  code: {
-    action: "settings-code-font",
-    title: "settings.general.row.font.title",
-    description: "settings.general.row.font.description",
-    font: "code",
-    input: "setCode",
-  },
-  terminal: {
-    action: "settings-terminal-font",
-    title: "settings.general.row.terminalFont.title",
-    description: "settings.general.row.terminalFont.description",
-    font: "terminal",
-    input: "setTerminal",
-  },
-} as const
 const AutoApprovePermissionsSetting: Component = () => {
   const language = useLanguage()
   const settings = useSettings()
@@ -183,90 +152,6 @@ const FollowUpBehaviorSetting: Component = () => {
   )
 }
 
-const AppearanceSection: Component<{ controller: AppearanceSettingsController }> = (props) => {
-  const language = useLanguage()
-  return (
-    <div class="settings-section">
-      <h3 class="settings-section-title">{language.t("settings.general.section.appearance")}</h3>
-      <SettingsList>
-        <SettingsRow
-          title={language.t("settings.general.row.colorScheme.title")}
-          description={language.t("settings.general.row.colorScheme.description")}
-        >
-          <Select
-            data-action="settings-color-scheme"
-            options={schemeOptions}
-            current={schemeOptions.find((option) => option === props.controller.scheme.current())}
-            placement="bottom-end"
-            gutter={6}
-            label={(option) => {
-              if (option === "system") return language.t("theme.scheme.system")
-              if (option === "light") return language.t("theme.scheme.light")
-              return language.t("theme.scheme.dark")
-            }}
-            onSelect={(option) => option && props.controller.scheme.select(option)}
-          />
-        </SettingsRow>
-
-        <SettingsRow
-          title={language.t("settings.general.row.theme.title")}
-          description={
-            <>
-              {language.t("settings.general.row.theme.description")}{" "}
-              <ExternalLink class="settings-link" href="https://opencode.ai/docs/themes/">
-                {language.t("common.learnMore")}
-              </ExternalLink>
-            </>
-          }
-        >
-          <Select
-            data-action="settings-theme"
-            options={props.controller.theme.options()}
-            current={props.controller.theme.current()}
-            placement="bottom-end"
-            gutter={6}
-            value={(option) => option.id}
-            label={(option) => option.name}
-            onSelect={props.controller.theme.select}
-          />
-        </SettingsRow>
-
-        <FontSetting kind="ui" fonts={props.controller.fonts} />
-        <FontSetting kind="code" fonts={props.controller.fonts} />
-        <FontSetting kind="terminal" fonts={props.controller.fonts} />
-      </SettingsList>
-    </div>
-  )
-}
-
-const FontSetting: Component<{
-  kind: "ui" | "code" | "terminal"
-  fonts: AppearanceSettingsController["fonts"]
-}> = (props) => {
-  const language = useLanguage()
-  const config = () => fontSettings[props.kind]
-  return (
-    <SettingsRow title={language.t(config().title)} description={language.t(config().description)}>
-      <div class="w-full sm:w-[220px]">
-        <TextInput
-          data-action={config().action}
-          type="text"
-          appearance="base"
-          value={props.fonts[config().font]().value}
-          onInput={(event) => props.fonts[config().input](event.currentTarget.value)}
-          placeholder={props.fonts[config().font]().placeholder}
-          spellcheck={false}
-          autocorrect="off"
-          autocomplete="off"
-          autocapitalize="off"
-          aria-label={language.t(config().title)}
-          style={{ "font-family": props.fonts[config().font]().family }}
-        />
-      </div>
-    </SettingsRow>
-  )
-}
-
 const LanguageSetting = () => {
   const language = useLanguage()
   const options = createMemo(() =>
@@ -409,50 +294,6 @@ export const SettingsGeneral: Component = () => {
     </div>
   )
 
-  const NotificationsSection = () => (
-    <div class="settings-section">
-      <h3 class="settings-section-title">{language.t("settings.general.section.notifications")}</h3>
-
-      <SettingsList>
-        <SettingsRow
-          title={language.t("settings.general.notifications.agent.title")}
-          description={language.t("settings.general.notifications.agent.description")}
-        >
-          <div data-action="settings-notifications-agent">
-            <Switch
-              checked={settings.notifications.agent()}
-              onChange={(checked) => settings.notifications.setAgent(checked)}
-            />
-          </div>
-        </SettingsRow>
-
-        <SettingsRow
-          title={language.t("settings.general.notifications.permissions.title")}
-          description={language.t("settings.general.notifications.permissions.description")}
-        >
-          <div data-action="settings-notifications-permissions">
-            <Switch
-              checked={settings.notifications.permissions()}
-              onChange={(checked) => settings.notifications.setPermissions(checked)}
-            />
-          </div>
-        </SettingsRow>
-
-        <SettingsRow
-          title={language.t("settings.general.notifications.errors.title")}
-          description={language.t("settings.general.notifications.errors.description")}
-        >
-          <div data-action="settings-notifications-errors">
-            <Switch
-              checked={settings.notifications.errors()}
-              onChange={(checked) => settings.notifications.setErrors(checked)}
-            />
-          </div>
-        </SettingsRow>
-      </SettingsList>
-    </div>
-  )
-
   return (
     <>
       <div class="settings-tab-header">

packages/app/src/shell/commands/command.tsx

@@ -89,6 +89,8 @@ export interface CommandOption {
   keybind?: KeybindConfig
   slash?: string
   slashArguments?: boolean
+  /** Listed right after the option whose slash name this is, when one is registered. */
+  slashAfter?: string
   suggested?: boolean
   /** Listed when the command palette opens without a query. Host commands are listed by id instead. */
   featured?: boolean
@@ -146,6 +148,22 @@ export function activeCommandRegistrations(registrations: CommandRegistration[])
   })
 }
 
+// Each option with `slashAfter` follows the first option with that slash name, so a command from another
+// registration can sit inside that registration's slash list.
+function placeAfterSlash(options: CommandOption[]) {
+  const anchors = new Map<string, CommandOption>()
+  options.forEach((option) => {
+    if (option.slash && !option.slashAfter && !anchors.has(option.slash)) anchors.set(option.slash, option)
+  })
+  const moved = options.filter((option) => option.slashAfter && anchors.has(option.slashAfter))
+  if (moved.length === 0) return options
+  return options.flatMap((option) => {
+    if (moved.includes(option)) return []
+    if (!option.slash || anchors.get(option.slash) !== option) return [option]
+    return [option, ...moved.filter((item) => item.slashAfter === option.slash)]
+  })
+}
+
 export function parseKeybind(config: string): Keybind[] {
   if (!config || config === "none") return []
 
@@ -313,7 +331,7 @@ export const { use: useCommand, provider: CommandProvider } = createSimpleContex
         }
       }
 
-      return all
+      return placeAfterSlash(all)
     })
 
     createEffect(() => {

packages/app/src/shell/commands/palette.ts

@@ -15,7 +15,6 @@ import { displayName } from "@opencode/ui/project-avatar"
 import { resolveProjectForSession } from "@/shell/layout/helpers"
 import { useExtensionHost } from "@/runtime/extension/host"
 import { useExtensionAttachment } from "@/runtime/extension/services"
-import { useServer } from "@/runtime/server/current"
 import { looksLikeSessionID } from "@/session/search"
 
 export type CommandPaletteEntry = {
@@ -64,7 +63,7 @@ export function createCommandPaletteFileOpener(onOpenFile?: (path: string) => vo
   const extensions = useExtensionAttachment()
 
   return (path: string) => {
-    links.open({ href: path, exact: true, session: extensions.current() })
+    links.open({ href: path, exact: true, background: true, session: extensions.current() })
     onOpenFile?.(path)
   }
 }

packages/app/src/shell/notifications/notification.tsx

@@ -1,23 +1,19 @@
 import { createStore, reconcile } from "solid-js/store"
 import { Schema } from "effect"
 import { SessionError } from "@opencode/schema/session-error"
-import { type Accessor, batch, createEffect, createMemo, createRoot, getOwner, onCleanup } from "solid-js"
-import { createSimpleContext } from "@opencode/ui/context"
+import { batch, createEffect, onCleanup } from "solid-js"
 import type { ServerSDK } from "@/runtime/server/client"
 import type { Data } from "@opencode/client/solid"
 import { usePlatform } from "@/runtime/platform/platform"
 import { useLanguage } from "@/runtime/i18n/language"
 import { useSettings } from "@/settings/model"
-import { decode64 } from "@/runtime/persistence/base64"
 import { Persist, persisted } from "@/runtime/persistence/storage"
 import { Persistence } from "@/runtime/persistence/schema"
 import { playSoundById } from "@/shell/notifications/sound"
 import type { createNotificationCoordinator } from "@/shell/notifications/coordinator"
-import { useGlobal } from "@/runtime/server/runtime"
-import { ServerConnection, useServers } from "@/runtime/server/registry"
+import { ServerConnection } from "@/runtime/server/registry"
 import { sessionIDHasOpenTab, useTabs } from "@/shell/tabs/tabs"
-import { requireServerKey, sessionHref } from "@/shell/routes/session"
-import type { ServerScope } from "@/runtime/server/scope"
+import { sessionHref } from "@/shell/routes/session"
 import { useServer } from "@/runtime/server/current"
 
 const NotificationBase = {

packages/app/src/shell/tabs/tabs.tsx

@@ -6,7 +6,7 @@ import { Persist, persisted, removePersisted, draftPersistedKeys } from "@/runti
 import { ServerConnection, useServers } from "@/runtime/server/registry"
 import { useExtensionServers } from "@/runtime/extension/servers"
 import { createEffect, getOwner, onCleanup, startTransition } from "solid-js"
-import { useLocation, useNavigate, useParams } from "@solidjs/router"
+import { useLocation, useNavigate } from "@solidjs/router"
 import { usePlatform } from "@/runtime/platform/platform"
 import { uuid } from "@/runtime/persistence/uuid"
 import { SessionTabsRemovedDetail } from "@/shell/titlebar/session-events"
@@ -80,7 +80,6 @@ export const { use: useTabs, provider: TabsProvider } = createSimpleContext({
     const [closed, setClosed, , closedReady] = persisted(Persist.window("tabs.closed"), TabStorage.Closed, [])
     const [pending, setPending] = createStore<Record<string, PendingSession | undefined>>({})
 
-    const params = useParams()
     const navigate = useNavigate()
     const location = useLocation()
     const memory = createTabMemory(getOwner())

packages/app/src/shell/titlebar/tab-nav.tsx

@@ -6,7 +6,7 @@ import { createMutation } from "@tanstack/solid-query"
 import { IconButton } from "@opencode/ui/icon-button"
 import { Icon } from "@opencode/ui/icon"
 import { Menu } from "@opencode/ui/menu"
-import { useGlobal, useServerCtx } from "@/runtime/server/runtime"
+import { useServerCtx } from "@/runtime/server/runtime"
 import { useLanguage } from "@/runtime/i18n/language"
 import { ServerConnection, serverName, useServers } from "@/runtime/server/registry"
 import { displayName } from "@opencode/ui/project-avatar"

packages/app/tsconfig.json

@@ -13,6 +13,7 @@
     "allowJs": true,
     "resolveJsonModule": true,
     "strict": true,
+    "noUnusedLocals": true,
     "noEmit": false,
     "emitDeclarationOnly": true,
     "outDir": "node_modules/.ts-dist",

packages/cli/package.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
   "name": "@opencode/cli",
-  "version": "2.0.21",
+  "version": "2.0.22",
   "type": "module",
   "license": "MIT",
   "bin": {
@@ -39,6 +39,7 @@
     "@opentui/solid": "catalog:",
     "@parcel/watcher": "2.5.1",
     "@silvia-odwyer/photon-node": "0.3.4",
+    "diff": "catalog:",
     "effect": "catalog:",
     "immer": "11.1.4",
     "jsonc-parser": "3.3.1",

packages/cli/src/acp/agent.ts

@@ -9,12 +9,13 @@ import {
   type JsonRpcId,
   type Stream,
 } from "@agentclientprotocol/sdk"
-import type { OpenCodeClient } from "@opencode/client/promise"
+import type { OpenCodeClient } from "@opencode/client/effect"
 import { Cause, Deferred, Effect, Ref, type Scope } from "effect"
+import { ACPCapabilities } from "./capabilities"
 import { ACPCatalog } from "./catalog"
+import { ACPClient } from "./client"
 import { ACPConnection } from "./connection"
 import { ACPError } from "./error"
-import { ACPPromise } from "./promise"
 import { ACPService } from "./service"
 import { ACPSessions } from "./sessions"
 import { ACPTurn } from "./turn"
@@ -23,19 +24,20 @@ import { ACPTurn } from "./turn"
 export const connect = Effect.fnUntraced(function* (client: OpenCodeClient, stream: Stream) {
   const run = Effect.runPromiseWith(yield* Effect.context<Scope.Scope>())
   const catalog = yield* ACPCatalog.make(client)
-  // Requests can dispatch once the stream's read loop yields, which may be before the service below is built.
+  // Requests can dispatch before the service below is built.
   const ready = yield* Deferred.make<ACPService.Interface>()
   const handle =
     <Params, A>(
-      call: (service: ACPService.Interface, ctx: AgentHandlerContext<Params>) => Effect.Effect<A, ACPService.Failure>,
+      call: (service: ACPService.Interface, ctx: AgentHandlerContext<Params>) => Effect.Effect<A, ACPError.Failure>,
     ) =>
     (name: string) => {
       const handler = Effect.fn(name)(
         (ctx: AgentHandlerContext<Params>) =>
           Deferred.await(ready).pipe(Effect.flatMap((service) => call(service, ctx))),
         Effect.catchTags({
-          ACPCatalogLoadError: (error) => ACPPromise.classify(error.cause),
-          ACPCatalogNotReadyError: (error) => Effect.die(error),
+          ACPCatalogLoadError: (error) => ACPClient.classify(error.cause),
+          ACPCatalogNotReadyError: (error) =>
+            Effect.fail(new ACPError.ServiceFailureError({ safeMessage: error.message, errorName: "CatalogNotReady" })),
         }),
         Effect.mapError((error) => (error instanceof RequestError ? error : ACPError.toRequestError(error))),
         Effect.tapCauseIf(Cause.hasDies, (cause) => Effect.logError("ACP request failed", cause)),
@@ -102,8 +104,6 @@ export const connect = Effect.fnUntraced(function* (client: OpenCodeClient, stre
     "session/set_mode",
     handle((service, ctx) => service.setSessionMode(ctx.params)),
   )
-  // The SDK signal is passed through rather than interrupting the fiber: a cancelled turn still resolves with
-  // `stopReason: "cancelled"`.
   request(
     "session/prompt",
     handle((service, ctx) => service.prompt(ctx.params, ctx.signal)),
@@ -115,7 +115,7 @@ export const connect = Effect.fnUntraced(function* (client: OpenCodeClient, stre
   const acp = ACPConnection.make(app, stream)
   const connection = acp.connection
   const sessions = yield* ACPSessions.make({ client, connection, catalog })
-  const capabilities = yield* Ref.make({ childSessionUpdates: false, formElicitation: false })
+  const capabilities = yield* Ref.make(ACPCapabilities.parse(undefined))
   const turn = yield* ACPTurn.make({ client, connection, sessions, catalog, capabilities })
   yield* Deferred.succeed(ready, ACPService.make({ client, connection, catalog, sessions, capabilities, turn }))
   return acp.agent

packages/cli/src/acp/capabilities.ts

@@ -0,0 +1,17 @@
+import type { ClientCapabilities } from "@agentclientprotocol/sdk"
+
+export const ChildSessionUpdates = "opencode/child-session-updates"
+
+export type Capabilities = ReturnType<typeof parse>
+
+export function parse(client: ClientCapabilities | undefined) {
+  const elicitation = client?.elicitation
+  const compaction = client?.session?.compaction
+  return {
+    childSessionUpdates: client?._meta?.[ChildSessionUpdates] === true,
+    formElicitation: elicitation?.form !== undefined && elicitation.form !== null,
+    compaction: compaction !== undefined && compaction !== null,
+  }
+}
+
+export * as ACPCapabilities from "./capabilities"

packages/cli/src/acp/catalog.ts

@@ -1,24 +1,25 @@
-import type { CommandInfo, ModelInfo, ModelRef, OpenCodeClient, OpenCodeEvent } from "@opencode/client/promise"
+import type { OpenCodeClient, OpenCodeEvent } from "@opencode/client/effect"
+import type { Agent } from "@opencode/schema/agent"
+import type { Command } from "@opencode/schema/command"
+import type { Model } from "@opencode/schema/model"
 import { FSUtil } from "@opencode/util/fs-util"
-import { Context, Deferred, Effect, Exit, Schedule, Schema, Semaphore, Stream, SubscriptionRef } from "effect"
+import { Cause, Deferred, Effect, Exit, Schedule, Schema, Semaphore, Stream, SubscriptionRef } from "effect"
 import type { ConfigOptionProvider } from "./config-option"
 
-// ACP runs these itself; they take precedence over server commands with the same name.
 export const builtinCommands = new Map([
   ["compact", { description: "Compact the session", start: "compaction" as const }],
 ])
 
 export type Catalog = {
   readonly providers: ConfigOptionProvider[]
-  readonly models: ModelInfo[]
-  readonly defaultModel: ModelRef
-  readonly modes: Array<{ id: string; name: string; description?: string }>
-  readonly defaultModeID: string
-  /** Server commands, without those shadowed by a built-in. */
-  readonly commands: CommandInfo[]
+  readonly models: ReadonlyArray<Model.Info>
+  readonly defaultModel: Model.Ref
+  readonly modes: ReadonlyArray<{ id: Agent.ID; name: string; description?: string }>
+  readonly defaultModeID: Agent.ID
+  readonly commands: ReadonlyArray<Command.Info>
 }
 
-export class NotReadyError extends Schema.TaggedError<NotReadyError>()("ACPCatalogNotReadyError", {
+class NotReadyError extends Schema.TaggedError<NotReadyError>()("ACPCatalogNotReadyError", {
   reason: Schema.Literals(["models", "agents"]),
 }) {
   override get message() {
@@ -26,32 +27,26 @@ export class NotReadyError extends Schema.TaggedError<NotReadyError>()("ACPCatal
   }
 }
 
-export class LoadError extends Schema.TaggedError<LoadError>()("ACPCatalogLoadError", {
+class LoadError extends Schema.TaggedError<LoadError>()("ACPCatalogLoadError", {
   cause: Schema.Defect(),
 }) {}
 
 export type Error = NotReadyError | LoadError
 
 export interface Interface {
-  /** Loads a directory's catalog once. Concurrent callers share the load, and a failed load is not cached. */
   readonly get: (cwd: string) => Effect.Effect<Catalog, Error>
-  /** Resolves after a reload that started after the call. A failed reload keeps the previous catalog. */
   readonly reload: (cwd: string) => Effect.Effect<void, Error>
-  /** Emits the current catalog, then each reloaded one. */
   readonly changes: (cwd: string) => Stream.Stream<Catalog, Error>
 }
 
-export class Service extends Context.Service<Service, Interface>()("@opencode/cli/acp/Catalog") {}
-
 type Entry = {
   readonly cwd: string
   readonly catalog: SubscriptionRef.SubscriptionRef<Catalog>
   readonly lock: Semaphore.Semaphore
-  requested: number
-  loaded: number
+  requestedGeneration: number
+  loadedGeneration: number
 }
 
-// Provider, integration, and credential changes reach the catalog through model.updated.
 const reloadOn = new Set<OpenCodeEvent["type"]>(["model.updated", "agent.updated", "command.updated"])
 
 export const make = Effect.fnUntraced(function* (client: OpenCodeClient) {
@@ -59,21 +54,20 @@ export const make = Effect.fnUntraced(function* (client: OpenCodeClient) {
   const entries = new Map<string, Deferred.Deferred<Entry, Error>>()
   const connected = yield* Deferred.make<void>()
 
-  // A reload covers every request made before it starts, so requests queued behind a running reload share
-  // one more load. Typed load failures keep the previous catalog and still settle the requests they covered.
+  // Requests queued behind a running load share the next one.
   const reload = (entry: Entry) =>
     Effect.suspend(() => {
-      const target = ++entry.requested
+      const target = ++entry.requestedGeneration
       return entry.lock.withPermit(
         Effect.suspend(() => {
-          if (entry.loaded >= target) return Effect.void
-          const generation = entry.requested
+          if (entry.loadedGeneration >= target) return Effect.void
+          const generation = entry.requestedGeneration
           return load(client, entry.cwd).pipe(
             Effect.flatMap((next) => SubscriptionRef.set(entry.catalog, next)),
             Effect.ignore,
             Effect.andThen(
               Effect.sync(() => {
-                entry.loaded = generation
+                entry.loadedGeneration = generation
               }),
             ),
           )
@@ -82,7 +76,7 @@ export const make = Effect.fnUntraced(function* (client: OpenCodeClient) {
     })
 
   // Subscribe before the first read so an update between the read and the subscription is not lost.
-  yield* Stream.fromAsyncIterable(client.event.subscribe(), (cause) => cause).pipe(
+  yield* client.event.subscribe().pipe(
     Stream.runForEach((event) => {
       if (event.type === "server.connected") return Deferred.succeed(connected, undefined)
       if (!reloadOn.has(event.type)) return Effect.void
@@ -94,7 +88,9 @@ export const make = Effect.fnUntraced(function* (client: OpenCodeClient) {
         { discard: true },
       )
     }),
-    Effect.ignore,
+    Effect.catchCause((cause) =>
+      Cause.hasInterruptsOnly(cause) ? Effect.void : Effect.logWarning("ACP catalog event stream failed", cause),
+    ),
     Effect.ensuring(Deferred.succeed(connected, undefined)),
     Effect.forkScoped,
   )
@@ -105,8 +101,8 @@ export const make = Effect.fnUntraced(function* (client: OpenCodeClient) {
       cwd,
       catalog: yield* SubscriptionRef.make<Catalog>(yield* load(client, cwd)),
       lock: Semaphore.makeUnsafe(1),
-      requested: 0,
-      loaded: 0,
+      requestedGeneration: 0,
+      loadedGeneration: 0,
     } satisfies Entry
   })
 
@@ -127,8 +123,8 @@ export const make = Effect.fnUntraced(function* (client: OpenCodeClient) {
       )
     })
 
-  return Service.of({
-    get: Effect.fn("cli.acp.catalog.get")(function* (cwd) {
+  return {
+    get: Effect.fnUntraced(function* (cwd) {
       const loaded = yield* entry(cwd)
       return yield* SubscriptionRef.get(loaded.catalog)
     }),
@@ -136,12 +132,12 @@ export const make = Effect.fnUntraced(function* (client: OpenCodeClient) {
       yield* reload(yield* entry(cwd))
     }),
     changes: (cwd) => Stream.unwrap(entry(cwd).pipe(Effect.map((loaded) => SubscriptionRef.changes(loaded.catalog)))),
-  })
+  } satisfies Interface
 })
 
 const load = (client: OpenCodeClient, cwd: string) =>
   read(client, cwd).pipe(
-    // Some providers discover models in the background after plugin startup begins.
+    // Providers may still be discovering models after startup.
     Effect.retry({
       while: (error) => error._tag === "ACPCatalogNotReadyError",
       schedule: Schedule.spaced("25 millis").pipe(Schedule.upTo({ duration: "5 seconds" })),
@@ -151,19 +147,18 @@ const load = (client: OpenCodeClient, cwd: string) =>
 
 const read = Effect.fnUntraced(function* (client: OpenCodeClient, cwd: string) {
   const location = { directory: cwd }
-  const [modelResult, defaultResult, agentResult, commandResult] = yield* Effect.tryPromise({
-    try: (signal) =>
-      Promise.all([
-        client.model.list({ location }, { signal }),
-        client.model.default({ location }, { signal }),
-        client.agent.list({ location }, { signal }),
-        client.command.list({ location }, { signal }),
-      ]),
-    catch: (cause) => new LoadError({ cause }),
-  })
+  const [modelResult, defaultResult, agentResult, commandResult] = yield* Effect.all(
+    [
+      client.model.list({ location }),
+      client.model.default({ location }),
+      client.agent.list({ location }),
+      client.command.list({ location }),
+    ],
+    { concurrency: "unbounded" },
+  ).pipe(Effect.mapError((cause) => new LoadError({ cause })))
   const models = modelResult.data.filter((model) => model.enabled)
   const preferred = defaultResult.data
-  // Parallel reads can straddle initialization; select only from this model list.
+  // The parallel default read can name a model missing from this list.
   const defaultModel = preferred
     ? models.find((model) => model.providerID === preferred.providerID && model.id === preferred.id)
     : models[0]
@@ -186,7 +181,7 @@ const read = Effect.fnUntraced(function* (client: OpenCodeClient, cwd: string) {
   } satisfies Catalog
 })
 
-function providers(models: readonly ModelInfo[]): ConfigOptionProvider[] {
+function providers(models: ReadonlyArray<Model.Info>) {
   return Array.from(new Set(models.map((model) => model.providerID)))
     .toSorted()
     .map((providerID) => ({

packages/cli/src/acp/child.ts

@@ -0,0 +1,68 @@
+import type { SessionUpdate } from "@agentclientprotocol/sdk"
+
+export const UpdateMethod = "opencode/session/child_update"
+
+export type Session = {
+  readonly id: string
+  readonly parentID: string
+  readonly depth: number
+  readonly title?: string
+}
+
+export type Event =
+  | { readonly type: "update"; readonly update: SessionUpdate }
+  | {
+      readonly type: "status"
+      readonly status: "created" | "running" | "completed" | "failed" | "interrupted"
+      readonly error?: { readonly type: string; readonly message: string }
+    }
+
+export type Update = {
+  readonly rootSessionId: string
+  readonly childSessionId: string
+  readonly parentSessionId: string
+  readonly depth: number
+  readonly title?: string
+} & Event
+
+export function update(rootSessionID: string, child: Session, event: Event): Update {
+  return {
+    rootSessionId: rootSessionID,
+    childSessionId: child.id,
+    parentSessionId: child.parentID,
+    depth: child.depth,
+    ...(child.title ? { title: child.title } : {}),
+    ...event,
+  }
+}
+
+export function project(sessionUpdate: SessionUpdate, child: Session) {
+  const projected = { ...sessionUpdate }
+  projected._meta = { ...projected._meta, ...meta(child) }
+  if (projected.sessionUpdate === "tool_call" || projected.sessionUpdate === "tool_call_update") {
+    projected.toolCallId = toolCallID(child, projected.toolCallId)
+    if (projected.title) projected.title = prefixTitle(child, projected.title)
+  }
+  return projected
+}
+
+export function meta(child: Session) {
+  return {
+    "opencode/child-session": {
+      id: child.id,
+      parentID: child.parentID,
+      depth: child.depth,
+      ...(child.title ? { title: child.title } : {}),
+    },
+  }
+}
+
+export function toolCallID(child: Session | undefined, id: string) {
+  return child ? `${child.id}:${id}` : id
+}
+
+export function prefixTitle(child: Session | undefined, value: string) {
+  return child?.title ? `${child.title}: ${value}` : value
+}
+
+export * as ACPChild from "./child"

packages/cli/src/acp/client.ts

@@ -0,0 +1,32 @@
+import { ClientError } from "@opencode/client/effect"
+import { InvalidCursorError, InvalidRequestError, SessionNotFoundError } from "@opencode/protocol/errors"
+import { Session } from "@opencode/schema/session"
+import { Effect, Schema } from "effect"
+import { HttpClientError } from "effect/unstable/http"
+import { ACPError } from "./error"
+
+export function classify(error: unknown): Effect.Effect<never, ACPError.Error> {
+  if (
+    error instanceof ClientError &&
+    HttpClientError.isHttpClientError(error.cause) &&
+    // The client reports a failed body read as a `DecodeError` with a cause; its other `DecodeError`s have none.
+    (error.cause.reason._tag === "TransportError" ||
+      (error.cause.reason._tag === "DecodeError" && error.cause.reason.cause !== undefined))
+  )
+    return Effect.fail(new ACPError.ServerUnavailableError())
+  if (error instanceof SessionNotFoundError)
+    return Effect.fail(new ACPError.SessionNotFoundError({ sessionId: error.sessionID }))
+  if (error instanceof InvalidRequestError)
+    return Effect.fail(new ACPError.InvalidRequestError({ message: error.message, field: error.field }))
+  if (error instanceof InvalidCursorError)
+    return Effect.fail(new ACPError.InvalidRequestError({ message: error.message, field: "cursor" }))
+  return Effect.die(error)
+}
+
+export function decodeSessionID(value: string) {
+  return Schema.decodeUnknownEffect(Session.ID)(value).pipe(
+    Effect.mapError(() => new ACPError.InvalidRequestError({ message: "Invalid session ID", field: "sessionID" })),
+  )
+}
+
+export * as ACPClient from "./client"

packages/cli/src/acp/compaction.ts

@@ -0,0 +1,144 @@
+import type { SessionUpdate } from "@agentclientprotocol/sdk"
+import type { OpenCodeEvent } from "@opencode/client/effect"
+import type { SessionError } from "@opencode/schema/session-error"
+import { SessionMessage } from "@opencode/schema/session-message"
+
+const MarkerMeta = "opencode/compaction"
+
+type Started = { readonly status: "started"; readonly messageId: string; readonly reason: "auto" | "manual" }
+
+type Compaction =
+  | Started
+  | {
+      readonly status: "completed"
+      readonly messageId: string
+      readonly reason: "auto" | "manual"
+      readonly summary: string
+    }
+  | {
+      readonly status: "failed"
+      readonly messageId: string
+      readonly reason: "auto" | "manual"
+      readonly error: SessionError.Error
+    }
+
+export type Tracked = ReadonlyMap<string, Started>
+
+type LifecycleEvent = Extract<
+  OpenCodeEvent,
+  { readonly type: "session.compaction.started" | "session.compaction.ended" | "session.compaction.failed" }
+>
+type OpeningEvent = Extract<
+  LifecycleEvent,
+  { readonly type: "session.compaction.started" | "session.compaction.failed" }
+>
+
+const Cancelled = new Set(["aborted", "compaction.interrupted"])
+
+// Without child updates, a child's standard update would read as the parent's own.
+export function usesStandardUpdates(
+  ctx: { readonly compaction: boolean; readonly childUpdates: boolean },
+  child: boolean,
+) {
+  return ctx.compaction && (!child || ctx.childUpdates)
+}
+
+export function apply(event: LifecycleEvent, tracked: Tracked, standardUpdates: boolean) {
+  const sessionID = event.data.sessionID
+  if (event.type === "session.compaction.started") {
+    const started = open(event)
+    return { tracked: new Map(tracked).set(sessionID, started), updates: [update(started, standardUpdates)] }
+  }
+  const current = tracked.get(sessionID)
+  const remaining = new Map(tracked)
+  remaining.delete(sessionID)
+  if (event.type === "session.compaction.ended") {
+    if (!current) return { tracked: remaining, updates: [] }
+    const completed: Compaction = {
+      ...current,
+      status: "completed",
+      reason: event.data.reason,
+      summary: event.data.text,
+    }
+    return { tracked: remaining, updates: [update(completed, standardUpdates)] }
+  }
+  // Auto compaction can fail without a started event; open it first for standard clients.
+  const started = current ?? open(event)
+  const failed: Compaction = { ...started, status: "failed", reason: event.data.reason, error: event.data.error }
+  return {
+    tracked: remaining,
+    updates: [
+      ...(current || !standardUpdates ? [] : [update(started, standardUpdates)]),
+      update(failed, standardUpdates),
+    ],
+  }
+}
+
+export function chunk(started: Started | undefined, text: string, standardUpdates: boolean): SessionUpdate | undefined {
+  if (!started || !standardUpdates) return undefined
+  return { sessionUpdate: "compaction_summary_chunk", compactionId: started.messageId, content: { type: "text", text } }
+}
+
+export function abandon(started: Started, standardUpdates: boolean) {
+  return update(
+    { ...started, status: "failed", error: { type: "aborted", message: "Compaction cancelled" } },
+    standardUpdates,
+  )
+}
+
+// Nothing on this connection would settle a replayed running compaction.
+export function replay(message: Extract<SessionMessage.Info, { type: "compaction" }>, standardUpdates: boolean) {
+  if (message.status === "running") return undefined
+  const base = { messageId: message.id, reason: message.reason }
+  return update(
+    message.status === "failed"
+      ? { ...base, status: "failed", error: message.error }
+      : { ...base, status: "completed", summary: message.summary },
+    standardUpdates,
+  )
+}
+
+// Matches core's compaction message ID, so live and replayed compactions line up.
+function open(event: OpeningEvent): Started {
+  return {
+    status: "started",
+    messageId: event.data.inputID ?? SessionMessage.ID.fromEvent(event.id),
+    reason: event.data.reason,
+  }
+}
+
+function update(compaction: Compaction, standardUpdates: boolean): SessionUpdate {
+  if (!standardUpdates) {
+    const marker = {
+      status: compaction.status,
+      messageId: compaction.messageId,
+      reason: compaction.reason,
+      ...(compaction.status === "failed" ? { error: compaction.error } : {}),
+    }
+    return { sessionUpdate: "session_info_update", _meta: { [MarkerMeta]: marker } }
+  }
+  const compactionId = compaction.messageId
+  if (compaction.status === "started")
+    return { sessionUpdate: "compaction_update", compactionId, status: "in_progress" }
+  if (compaction.status === "completed") {
+    const summary = compaction.summary ? [{ type: "text" as const, text: compaction.summary }] : null
+    return { sessionUpdate: "compaction_update", compactionId, status: "completed", summary }
+  }
+  if (Cancelled.has(compaction.error.type))
+    return { sessionUpdate: "compaction_update", compactionId, status: "cancelled", summary: null }
+  return {
+    sessionUpdate: "compaction_update",
+    compactionId,
+    status: "failed",
+    summary: null,
+    error: displayError(compaction.error),
+  }
+}
+
+// Core reports a defect as `compaction.failed` with a multi-line pretty-printed cause.
+function displayError(error: SessionError.Error) {
+  if (!error.message || (error.type === "compaction.failed" && error.message.includes("\n"))) return "Compaction failed"
+  return error.message
+}
+
+export * as ACPCompaction from "./compaction"

packages/cli/src/acp/config-option.ts

@@ -1,10 +1,11 @@
 import type { SessionConfigOption } from "@agentclientprotocol/sdk"
-import type { ModelRef } from "@opencode/client/promise"
+import type { Agent } from "@opencode/schema/agent"
+import type { Model } from "@opencode/schema/model"
 import { builtinCommands, type Catalog } from "./catalog"
 
 export const DEFAULT_VARIANT_VALUE = "default"
 
-export type ConfigOptionModel = {
+type ConfigOptionModel = {
   id: string
   name: string
   variants?: ReadonlyArray<string>
@@ -16,7 +17,7 @@ export type ConfigOptionProvider = {
   models: ReadonlyArray<ConfigOptionModel>
 }
 
-export type ConfigOptionMode = {
+type ConfigOptionMode = {
   id: string
   name: string
   description?: string
@@ -27,10 +28,9 @@ export type ModelSelection = {
   variant?: string
 }
 
-/** A session's model and mode. Unset fields follow the catalog defaults. */
 export type Selection = {
-  readonly model?: ModelRef
-  readonly modeID?: string
+  readonly model?: Model.Ref
+  readonly modeID?: Agent.ID
 }
 
 export function currentModel(catalog: Catalog, selection: Selection) {
@@ -163,5 +163,3 @@ function selectVariant(variant: string | undefined, variants: readonly string[])
   if (variants.includes(DEFAULT_VARIANT_VALUE)) return DEFAULT_VARIANT_VALUE
   return variants[0] ?? DEFAULT_VARIANT_VALUE
 }
-
-export * as ACPConfigOption from "./config-option"

packages/cli/src/acp/connection.ts

@@ -5,46 +5,31 @@ import {
   type CreateElicitationRequest,
   type CreateElicitationResponse,
   type JsonRpcId,
-  type RequestError,
+  RequestError,
   type RequestPermissionRequest,
   type RequestPermissionResponse,
   type SessionNotification,
   type Stream,
 } from "@agentclientprotocol/sdk"
 import { Context, Deferred, Effect } from "effect"
-import type { ACPError } from "./error"
-import { ACPPromise } from "./promise"
 
-/**
- * Completes once the response to the request being handled is written, so messages sent afterwards follow it.
- * Interrupts when the request fails. Outside a request it completes immediately.
- */
 export const Responded = Context.Reference<Effect.Effect<void>>("@opencode/cli/acp/Connection/Responded", {
   defaultValue: () => Effect.void,
 })
 
 export interface Interface {
-  readonly sessionUpdate: (params: SessionNotification) => Effect.Effect<void, ACPError.Error | RequestError>
-  /** Interruption cancels the client's request. */
+  readonly sessionUpdate: (params: SessionNotification) => Effect.Effect<void, RequestError>
   readonly requestPermission: (
     params: RequestPermissionRequest,
-  ) => Effect.Effect<RequestPermissionResponse, ACPError.Error | RequestError>
-  readonly extNotification: (
-    method: string,
-    params: Record<string, unknown>,
-  ) => Effect.Effect<void, ACPError.Error | RequestError>
-  /** Interruption cancels the client's request. */
+  ) => Effect.Effect<RequestPermissionResponse, RequestError>
+  readonly extNotification: (method: string, params: Record<string, unknown>) => Effect.Effect<void, RequestError>
   readonly createElicitation: (
     params: CreateElicitationRequest,
-  ) => Effect.Effect<CreateElicitationResponse, ACPError.Error | RequestError>
-  /** Tracks an incoming request from now on and returns its `Responded`. */
+  ) => Effect.Effect<CreateElicitationResponse, RequestError>
   readonly responded: (requestId: JsonRpcId) => Effect.Effect<void>
 }
 
-export class Service extends Context.Service<Service, Interface>()("@opencode/cli/acp/Connection") {}
-
 export function make(app: AgentApp, stream: Stream) {
-  // Settled as each response is written to the stream, which serializes every outgoing message.
   const responses = new Map<JsonRpcId, Deferred.Deferred<void>>()
   const writer = stream.writable.getWriter()
   const agent = app.connect({
@@ -64,15 +49,15 @@ export function make(app: AgentApp, stream: Stream) {
   })
   return {
     agent,
-    connection: Service.of({
-      sessionUpdate: (params) => ACPPromise.promise(() => agent.client.notify(methods.client.session.update, params)),
+    connection: {
+      sessionUpdate: (params) => promise(() => agent.client.notify(methods.client.session.update, params)),
       requestPermission: (params) =>
-        ACPPromise.promise((signal) =>
+        promise((signal) =>
           agent.client.request(methods.client.session.requestPermission, params, { cancellationSignal: signal }),
         ),
-      extNotification: (method, params) => ACPPromise.promise(() => agent.client.notify(method, params)),
+      extNotification: (method, params) => promise(() => agent.client.notify(method, params)),
       createElicitation: (params) =>
-        ACPPromise.promise((signal) =>
+        promise((signal) =>
           agent.client.request(methods.client.elicitation.create, params, { cancellationSignal: signal }),
         ),
       responded: (requestId) => {
@@ -80,8 +65,14 @@ export function make(app: AgentApp, stream: Stream) {
         responses.set(requestId, responded)
         return Deferred.await(responded)
       },
-    }),
+    } satisfies Interface,
   }
 }
 
+function promise<A>(evaluate: (signal: AbortSignal) => Promise<A>) {
+  return Effect.tryPromise({ try: evaluate, catch: (cause) => cause }).pipe(
+    Effect.catch((cause) => (cause instanceof RequestError ? Effect.fail(cause) : Effect.die(cause))),
+  )
+}
+
 export * as ACPConnection from "./connection"

packages/cli/src/acp/content.ts

@@ -1,18 +1,19 @@
 import type { ContentBlock, ContentChunk, ResourceLink } from "@agentclientprotocol/sdk"
 import path from "node:path"
 import { fileURLToPath, pathToFileURL } from "node:url"
+import { Result } from "effect"
 
 export type PromptPart =
   | { readonly type: "text"; readonly text: string; readonly synthetic?: boolean; readonly ignored?: boolean }
   | { readonly type: "file"; readonly url: string; readonly filename?: string; readonly mime: string }
 
-export type ReplayPart = PromptPart | { readonly type: "reasoning"; readonly text: string }
+type ReplayPart = PromptPart | { readonly type: "reasoning"; readonly text: string }
 
 export function promptContentToParts(content: readonly ContentBlock[]): PromptPart[] {
   return content.flatMap(contentBlockToParts)
 }
 
-export function contentBlockToParts(block: ContentBlock): PromptPart[] {
+function contentBlockToParts(block: ContentBlock): PromptPart[] {
   switch (block.type) {
     case "text": {
       const audience = block.annotations?.audience
@@ -24,48 +25,30 @@ export function contentBlockToParts(block: ContentBlock): PromptPart[] {
       }
       return [{ type: "text", text: block.text }]
     }
-    case "image":
-      if (block.data) {
-        return [
-          {
-            type: "file",
-            url: `data:${block.mimeType};base64,${block.data}`,
-            filename: filenameFromUri(block.uri ?? undefined) ?? "image",
-            mime: block.mimeType,
-          },
-        ]
-      }
-      if (block.uri?.startsWith("data:") || block.uri?.startsWith("http://") || block.uri?.startsWith("https://")) {
-        return [
-          {
-            type: "file",
-            url: block.uri,
-            filename: filenameFromUri(block.uri) ?? "image",
-            mime: block.mimeType,
-          },
-        ]
-      }
-      return []
+    case "image": {
+      const url = block.data ? `data:${block.mimeType};base64,${block.data}` : block.uri
+      if (!url) return []
+      const filename = filenameFromUri(block.uri ?? undefined) ?? "image"
+      if (url.startsWith("data:")) return [{ type: "file", url, filename, mime: block.mimeType }]
+      return [resourceLinkToPart({ uri: url, name: filename, mimeType: block.mimeType })]
+    }
     case "resource_link":
       return [resourceLinkToPart(block)]
     case "resource":
       if ("text" in block.resource) {
-        try {
-          const parsed = new URL(block.resource.uri)
-          if (parsed.protocol === "file:") {
-            const line = parsed.hash.match(/^#L(\d+)/)?.[1]
-            const decoded = (() => {
-              try {
-                return fileURLToPath(parsed)
-              } catch {
-                return decodeURIComponent(parsed.pathname)
-              }
-            })()
-            const filepath = path.sep === "\\" ? decoded.replace(/\\/g, "/") : decoded
-            return [{ type: "text", text: `[${filepath}${line ? `:${line}` : ""}]\n${block.resource.text}` }]
-          }
-        } catch {}
-        return [{ type: "text", text: `[${block.resource.uri}]\n${block.resource.text}` }]
+        const parsed = URL.canParse(block.resource.uri) ? new URL(block.resource.uri) : undefined
+        const decoded =
+          parsed?.protocol === "file:"
+            ? Result.try(() => fileURLToPath(parsed)).pipe(
+                Result.orElse(() => Result.try(() => decodeURIComponent(parsed.pathname))),
+                Result.getOrUndefined,
+              )
+            : undefined
+        if (!parsed || decoded === undefined)
+          return [{ type: "text", text: `[${block.resource.uri}]\n${block.resource.text}` }]
+        const line = parsed.hash.match(/^#L(\d+)/)?.[1]
+        const filepath = path.sep === "\\" ? decoded.replace(/\\/g, "/") : decoded
+        return [{ type: "text", text: `[${filepath}${line ? `:${line}` : ""}]\n${block.resource.text}` }]
       }
       if (!block.resource.mimeType) return []
       return [
@@ -180,8 +163,9 @@ export function linkReference(name: string | undefined, uri: string): PromptPart
 
 function filenameFromUri(uri: string | undefined): string | undefined {
   if (!uri || uri.startsWith("data:")) return undefined
-  if (URL.canParse(uri)) return path.basename(new URL(uri).pathname) || undefined
+  if (URL.canParse(uri)) {
+    const url = new URL(uri)
+    return path.basename((url.protocol === "zed:" && url.searchParams.get("path")) || url.pathname) || undefined
+  }
   return path.basename(uri) || undefined
 }
-
-export * as ACPContent from "./content"