fix(core): bypass Windows Git lookup

.changeset/device-authorization-url.md

@@ -1,5 +0,0 @@
----
-"@opencode-ai/core": patch
----
-
-Fix OpenCode Console device authorization URLs when the server returns an origin-rooted verification path.

.github/workflows/deploy-www.yml

@@ -27,6 +27,7 @@ jobs:
         working-directory: packages/www
         run: bun run build
         env:
+          BLUME_ENV: ${{ github.ref_name == 'v2' && 'production' || 'dev' }}
           CLOUDFLARE_ENV: ${{ github.ref_name == 'v2' && 'production' || 'dev' }}
 
       - name: Deploy

.github/workflows/publish.yml

@@ -91,7 +91,7 @@ jobs:
 
       - uses: ./.github/actions/setup-bun
         with:
-          bun-version: 1.4.0
+          bun-version: canary # Bun 1.4 until its stable release is published
 
       - name: Setup git committer
         id: committer
@@ -113,7 +113,7 @@ jobs:
         id: build
         run: ./packages/cli/script/build.ts ${{ (github.ref_name == 'beta' && '--sourcemaps') || '' }}
         env:
-          BUN_COMPILE_RELEASE: bun-v1.4.0
+          BUN_COMPILE_RELEASE: canary
           OPENCODE_VERSION: ${{ needs.version.outputs.version }}
           OPENCODE_RELEASE: ${{ needs.version.outputs.release }}
           GH_REPO: ${{ needs.version.outputs.repo }}
@@ -195,33 +195,9 @@ jobs:
           path: packages/cli/dist/cli-*
           if-no-files-found: error
 
-  build-node-app-archive:
-    needs: version
-    runs-on: blacksmith-4vcpu-ubuntu-2404
-    timeout-minutes: 30
-    if: github.repository == 'anomalyco/opencode'
-    steps:
-      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
-
-      - uses: ./.github/actions/setup-bun
-
-      - name: Build app archive
-        run: bun packages/cli/script/build-node.ts --app-archive-only --app-archive=.cache/app-archive.bin --skip-install
-        env:
-          OPENCODE_VERSION: ${{ needs.version.outputs.version }}
-          OPENCODE_RELEASE: ${{ needs.version.outputs.release }}
-
-      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        with:
-          name: opencode-node-app-archive
-          path: packages/cli/.cache/app-archive.bin
-          if-no-files-found: error
-
   build-node-cli:
-    needs:
-      - version
-      - build-node-app-archive
-    if: github.repository == 'anomalyco/opencode'
+    needs: version
+    if: github.repository == 'anomalyco/opencode' && false # Temporarily disabled
     strategy:
       fail-fast: false
       matrix:
@@ -234,7 +210,6 @@ jobs:
             host: macos-26
           - target: windows-arm64
             host: blacksmith-4vcpu-windows-2025
-            bun_install_flags: --cpu=*
           - target: windows-x64
             host: blacksmith-4vcpu-windows-2025
     runs-on: ${{ matrix.settings.host }}
@@ -246,19 +221,14 @@ jobs:
 
       - uses: ./.github/actions/setup-bun
         with:
-          install-flags: ${{ matrix.settings.bun_install_flags }}
+          install-flags: --os=* --cpu=*
 
       - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: "26.4.0"
 
-      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
-        with:
-          name: opencode-node-app-archive
-          path: packages/cli/.cache
-
       - name: Build
-        run: bun packages/cli/script/build-node.ts --target=${{ matrix.settings.target }} --skip-install --outdir=dist/node --app-archive=.cache/app-archive.bin
+        run: bun packages/cli/script/build-node.ts --target=${{ matrix.settings.target }} --skip-install --outdir=dist/node
         env:
           OPENCODE_VERSION: ${{ needs.version.outputs.version }}
           OPENCODE_RELEASE: ${{ needs.version.outputs.release }}
@@ -573,7 +543,6 @@ jobs:
       - version
       - build-cli
       - sign-cli-macos
-      - build-node-app-archive
       - build-node-cli
       - sign-cli-windows
       - build-electron

nix/hashes.json

@@ -1,8 +1,8 @@
 {
   "nodeModules": {
-    "x86_64-linux": "sha256-P8AZ2THuXiET4hiSYTwGGdTgbm2l3XGZGJxQwg6lusE=",
-    "aarch64-linux": "sha256-73LxDeDPQspY4Bn/gbGU43j/k7gBZ5ywMMpUjDl3elg=",
-    "aarch64-darwin": "sha256-sc9YyTAFlbWxlFb9vwFYLs6IYd3SRoju9mQufzeQdd8=",
-    "x86_64-darwin": "sha256-nnk637DELjzGB3t9aLDYbHz5h3Dd3nvWcWGdaQk8yPM="
+    "x86_64-linux": "sha256-PatsUdaitHvSUpS5gkC5J2rsUNB5vwJKqHdlOFaKk70=",
+    "aarch64-linux": "sha256-gTRQMAADH/SpQ8yh+YS2IcnmQxnJcU4FUah2YfrKeP8=",
+    "aarch64-darwin": "sha256-QTqlwmugYh+iu5Sh/Hxv01NXH/OhzcQ8ObVUbA9A8AM=",
+    "x86_64-darwin": "sha256-0DPAbNCVw2nUMWkIGEhB6saMdxRRwAJi7wAoWCQc7xQ="
   }
 }

package.json

@@ -49,10 +49,10 @@
       "@octokit/rest": "22.0.0",
       "@hono/standard-validator": "0.2.0",
       "@hono/zod-validator": "0.4.2",
-      "@opentui/core": "0.5.7",
-      "@opentui/keymap": "0.5.7",
-      "@opentui/solid": "0.5.7",
-      "@tanstack/solid-virtual": "3.13.37",
+      "@opentui/core": "0.5.6",
+      "@opentui/keymap": "0.5.6",
+      "@opentui/solid": "0.5.6",
+      "@tanstack/solid-virtual": "3.13.32",
       "@shikijs/stream": "4.2.0",
       "@standard-schema/spec": "1.1.0",
       "ulid": "3.0.1",
@@ -174,7 +174,7 @@
     "@ai-sdk/google@3.0.73": "patches/@ai-sdk%2Fgoogle@3.0.73.patch",
     "@pierre/trees@1.0.0-beta.4": "patches/@pierre%2Ftrees@1.0.0-beta.4.patch",
     "@modelcontextprotocol/sdk@1.29.0": "patches/@modelcontextprotocol%2Fsdk@1.29.0.patch",
-    "@tanstack/virtual-core@3.17.8": "patches/@tanstack%2Fvirtual-core@3.17.8.patch",
+    "@tanstack/virtual-core@3.17.3": "patches/@tanstack%2Fvirtual-core@3.17.3.patch",
     "@ff-labs/fff-bun@0.10.5": "patches/@ff-labs%2Ffff-bun@0.10.5.patch"
   }
 }

packages/ai/src/protocols/gemini.ts

@@ -212,6 +212,7 @@ type GeminiEvent = Schema.Schema.Type<typeof GeminiEvent>
 interface ParserState {
   readonly finishReason?: string
   readonly hasToolCalls: boolean
+  readonly nextToolCallId: number
   readonly promptFeedback?: GeminiPromptFeedback
   readonly usage?: Usage
   readonly lifecycle: Lifecycle.State
@@ -579,6 +580,7 @@ const step = (state: ParserState, event: GeminiEvent) => {
   const events: LLMEvent[] = []
   let hasToolCalls = nextState.hasToolCalls
   let lifecycle = nextState.lifecycle
+  let nextToolCallId = nextState.nextToolCallId
   let reasoningSignature = nextState.reasoningSignature
   let textSignature = nextState.textSignature
 
@@ -618,9 +620,7 @@ const step = (state: ParserState, event: GeminiEvent) => {
 
     if ("functionCall" in part) {
       const input = part.functionCall.args === undefined ? {} : part.functionCall.args
-      // Gemini 2.0+ and Vertex supply a unique function call ID on the part; when omitted (e.g. Gemini 1.5),
-      // generate a globally unique ID rather than a per-request counter to prevent cross-request collisions in downstream registries.
-      const id = part.functionCall.id ?? `tool_${crypto.randomUUID().replaceAll("-", "")}`
+      const id = `tool_${nextToolCallId++}`
       const metadata = {
         ...(part.functionCall.id === undefined ? {} : { functionCallId: part.functionCall.id }),
         ...(part.thoughtSignature === undefined ? {} : { thoughtSignature: part.thoughtSignature }),
@@ -649,6 +649,7 @@ const step = (state: ParserState, event: GeminiEvent) => {
       ...nextState,
       hasToolCalls,
       lifecycle,
+      nextToolCallId,
       reasoningSignature,
       textSignature,
       finishReason: candidate.finishReason ?? nextState.finishReason,
@@ -672,7 +673,7 @@ export const protocol = Protocol.make({
   },
   stream: {
     event: Protocol.jsonEvent(GeminiEvent),
-    initial: () => ({ hasToolCalls: false, lifecycle: Lifecycle.initial() }),
+    initial: () => ({ hasToolCalls: false, nextToolCallId: 0, lifecycle: Lifecycle.initial() }),
     step,
     onHalt: finish,
   },

packages/ai/src/protocols/index.ts

@@ -8,4 +8,3 @@ export * as OpenAICompatibleResponses from "./openai-compatible-responses.js"
 export * as OpenAIResponses from "./openai-responses.js"
 export * as OpenResponses from "./open-responses.js"
 export * as OpenResponsesChannel from "./open-responses-channel.js"
-export * as XAIResponses from "./xai-responses.js"

packages/ai/src/protocols/open-responses-channel.ts

@@ -10,7 +10,6 @@ import {
 } from "../route/transport/index.js"
 import * as ProviderShared from "./shared.js"
 import { OpenResponses } from "./open-responses.js"
-import { OpenResponsesContinuation } from "./open-responses-continuation.js"
 
 const WebSocketResponseCreate = Schema.StructWithRest(Schema.Struct({ type: Schema.tag("response.create") }), [
   Schema.Record(Schema.String, Schema.Unknown),
@@ -26,6 +25,11 @@ export interface Options {
   readonly enabled?: (url: string) => boolean
   readonly url?: (url: string) => string
   readonly headers?: (headers: Headers.Headers) => Headers.Headers
+  readonly driver?: (input: {
+    readonly request: Readonly<Record<string, unknown>>
+    readonly message: string
+    readonly base: WebSocketChannelDriver
+  }) => WebSocketChannelDriver
 }
 
 export interface Prepared {
@@ -154,13 +158,7 @@ export const transport = <Body>(options: Options): Transport<Body, Prepared, str
                   url: yield* WebSocketTransport.toWebSocketUrl(options.url?.(parts.url) ?? parts.url),
                   headers,
                   rotateAfterMs: options.rotateAfterMs,
-                  driver: OpenResponsesContinuation.driver({
-                    id: options.id,
-                    name: options.name,
-                    request: create.request,
-                    message: create.message,
-                    base,
-                  }),
+                  driver: options.driver?.({ request: create.request, message: create.message, base }) ?? base,
                 }
               })
             : undefined

packages/ai/src/protocols/open-responses.ts

@@ -42,12 +42,8 @@ const OpenResponsesInputImage = Schema.Struct({
 const OpenResponsesInputFile = Schema.Struct({
   type: Schema.tag("input_file"),
   filename: Schema.String,
-  file_data: Schema.optional(Schema.String),
-  file_url: Schema.optional(Schema.String),
-})
-const OpenResponsesInputVideo = Schema.Struct({
-  type: Schema.tag("input_video"),
-  video_url: Schema.String,
+  file_data: Schema.String,
+  mime_type: Schema.optional(Schema.String),
 })
 const MediaInput = Schema.Union([OpenResponsesInputImage, OpenResponsesInputFile])
 export type MediaInput = Schema.Schema.Type<typeof MediaInput>
@@ -58,14 +54,9 @@ const OpenResponsesOutputText = Schema.Struct({
   text: Schema.String,
 })
 
-export const MessagePhase = Schema.NullOr(Schema.Literals(["commentary", "final_answer"]))
+export const MessagePhase = Schema.Literals(["commentary", "final_answer"])
 type MessagePhase = Schema.Schema.Type<typeof MessagePhase>
 
-const messagePhase = (value: unknown): MessagePhase | undefined => {
-  if (value === null || value === "commentary" || value === "final_answer") return value
-  return undefined
-}
-
 const OpenResponsesReasoningSummaryText = Schema.Struct({
   type: Schema.tag("summary_text"),
   text: Schema.String,
@@ -90,7 +81,6 @@ const OpenResponsesFunctionCallOutputContent = Schema.Union([
   OpenResponsesInputText,
   OpenResponsesInputImage,
   OpenResponsesInputFile,
-  OpenResponsesInputVideo,
 ])
 
 const OpenResponsesFunctionCallOutput = Schema.Union([
@@ -247,7 +237,6 @@ const OpenResponsesErrorPayload = Schema.Struct({
   message: optionalNull(Schema.String),
   param: optionalNull(Schema.String),
 })
-type OpenResponsesErrorPayload = Schema.Schema.Type<typeof OpenResponsesErrorPayload>
 
 const WebSocketErrorHeader = Schema.Union([Schema.String, Schema.Number, Schema.Boolean])
 export const WebSocketErrorEvent = Schema.StructWithRest(
@@ -312,6 +301,20 @@ export const Event = Schema.StructWithRest(
 )
 export type Event = Schema.Schema.Type<typeof Event>
 
+const RefusalEvent = Schema.Union([
+  Schema.Struct({
+    type: Schema.tag("response.refusal.delta"),
+    item_id: Schema.String,
+    delta: Schema.String,
+  }),
+  Schema.Struct({
+    type: Schema.tag("response.refusal.done"),
+    item_id: Schema.String,
+    refusal: Schema.String,
+  }),
+])
+const isRefusalEvent = Schema.is(RefusalEvent)
+
 export interface Extension {
   readonly id: string
   readonly name: string
@@ -320,6 +323,7 @@ export interface Extension {
     readonly media: ProviderShared.NormalizedMedia
     readonly request: LLMRequest
   }) => MediaInput | undefined
+  readonly messagePhase?: (value: unknown) => MessagePhase | null | undefined
 }
 
 const BASE: Extension = { id: ADAPTER, name: NAME }
@@ -332,6 +336,7 @@ export interface ParserState {
   readonly hasFunctionCall: boolean
   readonly lifecycle: Lifecycle.State
   readonly messageItems: ReadonlySet<string>
+  readonly messagePhase: (value: unknown) => MessagePhase | null | undefined
   readonly messagePhases: Readonly<Record<string, MessagePhase | null>>
   readonly reasoningItems: Readonly<Record<string, ReasoningStreamItem>>
   readonly store: boolean | undefined
@@ -409,29 +414,26 @@ const lowerReasoning = (part: ReasoningPart, providerMetadataKey: string): OpenR
   }
 }
 
+const hostedToolItemID = (part: ToolResultPart, providerMetadataKey: string) => {
+  return itemID(part.providerMetadata, providerMetadataKey)
+}
+
 const lowerMedia = Effect.fn("OpenResponses.lowerMedia")(function* (
   part: MediaPart,
   request: LLMRequest,
   extension: Extension,
-  target: "message" | "tool-result",
 ) {
   const media = ProviderShared.normalizeMedia(part)
   const extended = extension.lowerMedia?.({ part, media, request })
   if (extended) return extended
-  const url =
-    typeof part.data === "string" && (part.data.startsWith("https://") || part.data.startsWith("http://"))
-      ? part.data
-      : undefined
   if (!media.mime.startsWith("image/")) {
-    if (target === "tool-result" && media.mime.startsWith("video/"))
-      return { type: "input_video" as const, video_url: url ?? media.dataUrl }
     return {
       type: "input_file" as const,
       filename: part.filename ?? (media.mime === "application/pdf" ? "document.pdf" : "file"),
-      ...(url ? { file_url: url } : { file_data: media.base64 }),
+      file_data: media.dataUrl,
     }
   }
-  return { type: "input_image" as const, image_url: url ?? media.dataUrl }
+  return { type: "input_image" as const, image_url: media.dataUrl }
 })
 
 const lowerUserContent = Effect.fnUntraced(function* (
@@ -440,17 +442,10 @@ const lowerUserContent = Effect.fnUntraced(function* (
   extension: Extension,
 ) {
   if (part.type === "text") return { type: "input_text" as const, text: part.text }
-  if (part.type === "media") return yield* lowerMessageMedia(part, request, extension)
+  if (part.type === "media") return yield* lowerMedia(part, request, extension)
   return yield* ProviderShared.unsupportedContent(extension.name, "user", ["text", "media"])
 })
 
-const lowerMessageMedia = Effect.fnUntraced(function* (part: MediaPart, request: LLMRequest, extension: Extension) {
-  const lowered = yield* lowerMedia(part, request, extension, "message")
-  if (lowered.type === "input_video")
-    return yield* ProviderShared.invalidRequest(`${extension.name} user messages do not support input_video`)
-  return lowered
-})
-
 // Tool results may carry structured text, images, and files. Keep media as provider-native
 // content instead of JSON-stringifying base64 into a prompt string.
 const lowerToolResultContentItem = Effect.fnUntraced(function* (
@@ -463,20 +458,6 @@ const lowerToolResultContentItem = Effect.fnUntraced(function* (
     { type: "media", mediaType: item.mime, data: item.uri, filename: item.name },
     request,
     extension,
-    "tool-result",
-  )
-})
-
-const lowerHostedToolResultContentItem = Effect.fnUntraced(function* (
-  item: Content,
-  request: LLMRequest,
-  extension: Extension,
-) {
-  if (item.type === "text") return { type: "input_text" as const, text: item.text }
-  return yield* lowerMessageMedia(
-    { type: "media", mediaType: item.mime, data: item.uri, filename: item.name },
-    request,
-    extension,
   )
 })
 
@@ -529,7 +510,7 @@ const lowerMessages = Effect.fn("OpenResponses.lowerMessages")(function* (reques
         >((groups, part) => {
           const metadata = part.providerMetadata?.[providerMetadataKey]
           const id = itemID(part.providerMetadata, providerMetadataKey)
-          const phase = ProviderShared.isRecord(metadata) ? messagePhase(metadata.phase) : undefined
+          const phase = ProviderShared.isRecord(metadata) ? messagePhase(metadata.phase, extension) : undefined
           const group = groups.at(-1)
           if (group && group.id === id && group.phase === phase) group.parts.push(part)
           else groups.push({ id, phase, parts: [part] })
@@ -579,19 +560,17 @@ const lowerMessages = Effect.fn("OpenResponses.lowerMessages")(function* (reques
         }
         if (part.type === "tool-result" && part.providerExecuted === true) {
           flushText()
-          const id = itemID(part.providerMetadata, providerMetadataKey)
-          if (store !== false && id && !hostedToolReferences.has(id))
-            input.push({ type: "item_reference", id })
+          const itemID = hostedToolItemID(part, providerMetadataKey)
+          if (store !== false && itemID && !hostedToolReferences.has(itemID))
+            input.push({ type: "item_reference", id: itemID })
           if (store === false && part.result.type === "content") {
             const content: ReadonlyArray<Content> = part.result.value
             input.push({
               role: "user",
-              content: yield* Effect.forEach(content, (item) =>
-                lowerHostedToolResultContentItem(item, request, extension),
-              ),
+              content: yield* Effect.forEach(content, (item) => lowerToolResultContentItem(item, request, extension)),
             })
           }
-          if (id) hostedToolReferences.add(id)
+          if (itemID) hostedToolReferences.add(itemID)
           continue
         }
         return yield* ProviderShared.unsupportedContent(extension.name, "assistant", [
@@ -803,17 +782,18 @@ const reasoningMetadata = (state: ParserState, item: StreamItem & { id: string }
 // best-effort, not guaranteed.
 const onOutputItemAdded = (state: ParserState, event: Event): StepResult => {
   const item = event.item
-  if (item?.type === "message" && item.id) {
-    const phase = messagePhase(item.phase)
+  if (item?.type === "message" && item.id)
     return [
       {
         ...state,
         messageItems: new Set([...state.messageItems, item.id]),
-        messagePhases: phase === undefined ? state.messagePhases : { ...state.messagePhases, [item.id]: phase },
+        messagePhases: (() => {
+          const phase = state.messagePhase(item.phase)
+          return phase === undefined ? state.messagePhases : { ...state.messagePhases, [item.id]: phase }
+        })(),
       },
       NO_EVENTS,
     ]
-  }
   if (item && isReasoningItem(item)) {
     const events: LLMEvent[] = []
     return [
@@ -971,7 +951,7 @@ const onOutputItemDone = Effect.fn("OpenResponses.onOutputItemDone")(function* (
   if (!item) return [state, NO_EVENTS] satisfies StepResult
 
   if (item.type === "message" && item.id) {
-    const itemPhase = messagePhase(item.phase)
+    const itemPhase = state.messagePhase(item.phase)
     const phase = itemPhase === undefined ? state.messagePhases[item.id] : itemPhase
     const events: LLMEvent[] = []
     const messageItems = new Set(state.messageItems)
@@ -1079,26 +1059,22 @@ const onResponseFinish = Effect.fn("OpenResponses.onResponseFinish")(function* (
   return [{ ...state, lifecycle, hasFunctionCall, tools: pending.tools }, events] satisfies StepResult
 })
 
-// Build the prettiest summary available from whatever the provider supplied.
+// Build a single human-readable message from whatever the provider supplied.
 // When both code and message are present, prefix the code so consumers see
 // the failure mode (e.g. `rate_limit_exceeded: Slow down`) instead of just
 // the bare message — production rate limits and context-length failures used
-// to be indistinguishable from generic stream drops. Returns undefined when
-// the payload carries no usable summary.
-const providerErrorMessage = (event: Event, nested: OpenResponsesErrorPayload | undefined): string | undefined => {
+// to be indistinguishable from generic stream drops.
+const providerErrorMessage = (event: Event, fallback: string): string => {
+  const nested = event.error ?? event.response?.error ?? undefined
   const message = event.message || nested?.message || undefined
   const code = event.code || nested?.code || undefined
   if (message && code) return `${code}: ${message}`
-  return message || code
+  return message || code || fallback
 }
 
 export const providerFailure = (id: string, event: Event, fallback: string) => {
-  const nested = event.error ?? event.response?.error ?? undefined
-  const code = event.code || nested?.code || undefined
-  // Keep the full raw payload on the error even when the message is a summary.
-  const body = JSON.stringify(nested ?? event) ?? ""
-  const summary = providerErrorMessage(event, nested)
-  const message = summary ?? (body === "{}" ? fallback : body)
+  const code = event.code || event.error?.code || event.response?.error?.code || undefined
+  const message = providerErrorMessage(event, fallback)
   const status =
     typeof event.status === "number"
       ? event.status
@@ -1108,8 +1084,7 @@ export const providerFailure = (id: string, event: Event, fallback: string) => {
   return new AIError({
     module: id,
     method: "stream",
-    body,
-    reason: classifyProviderFailure({ message, code, status, rawBody: body }),
+    reason: classifyProviderFailure({ message, code, status }),
   })
 }
 
@@ -1125,18 +1100,21 @@ export const step = (state: ParserState, event: Event) => {
     )
   }
   if (event.type === "response.refusal.delta" || event.type === "response.refusal.done") {
-    const value = event.type === "response.refusal.delta" ? event.delta : event.refusal
-    if (!event.item_id || typeof value !== "string") return ProviderShared.eventError(state.id, `${event.type} is malformed`)
+    if (!isRefusalEvent(event)) return ProviderShared.eventError(state.id, `${event.type} is malformed`)
     return Effect.succeed(
       event.type === "response.refusal.delta"
         ? onOutputTextDelta(state, event, event.item_id)
-        : onOutputTextDone(state, { ...event, text: value }, event.item_id),
+        : onOutputTextDone(state, { ...event, text: event.refusal }, event.item_id),
     )
   }
   if (event.type === "response.reasoning.delta" || event.type === "response.reasoning_summary_text.delta") {
     if (!event.item_id) return ProviderShared.eventError(state.id, `${event.type} is missing item_id`)
     return Effect.succeed(onReasoningDelta(state, event, event.item_id))
   }
+  if (event.type === "response.reasoning.done" || event.type === "response.reasoning_summary_text.done") {
+    if (!event.item_id) return ProviderShared.eventError(state.id, `${event.type} is missing item_id`)
+    return Effect.succeed(onReasoningDone(state, event))
+  }
   if (event.type === "response.reasoning_summary_part.added")
     return event.item_id
       ? Effect.succeed(onReasoningSummaryPartAdded(state, event))
@@ -1181,11 +1159,17 @@ export const initial = (request: LLMRequest, extension: Extension = BASE): Parse
   tools: ToolStream.empty<string>(),
   lifecycle: Lifecycle.initial(),
   messageItems: new Set<string>(),
+  messagePhase: (value) => messagePhase(value, extension),
   messagePhases: {},
   reasoningItems: {},
   store: OpenResponsesOptions.resolve(request).store,
 })
 
+const messagePhase = (value: unknown, extension: Extension): MessagePhase | null | undefined => {
+  if (value === "commentary" || value === "final_answer") return value
+  return extension.messagePhase?.(value)
+}
+
 export const protocol = Protocol.make({
   id: ADAPTER,
   body: {

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

@@ -110,7 +110,7 @@ export const model = (input: ModelInput) => {
       const multipartImages = yield* Effect.forEach(sourceImages, (image) => {
         if (image.type === "bytes") return Effect.succeed({ data: image.data, mediaType: image.mediaType })
         if (image.type === "url") return ImageInputs.decodeDataUrl(image.url, ADAPTER)
-        return Effect.undefined
+        return Effect.succeed(undefined)
       })
       const multipartMask =
         mask === undefined

packages/ai/src/protocols/openai-responses-channel.ts

@@ -4,7 +4,7 @@ import { Effect, Option, Schema } from "effect"
 import * as ProviderShared from "./shared.js"
 import { OpenResponses } from "./open-responses.js"
 
-const PROTOCOL = "open-responses.websocket.v1"
+const PROTOCOL = "openai-responses.websocket.v1"
 const VERSION = 1
 const decodeEvent = Schema.decodeUnknownEffect(OpenResponses.protocol.stream.event)
 
@@ -161,4 +161,4 @@ export const driver = (input: DriverInput): WebSocketChannelDriver => {
   }
 }
 
-export const OpenResponsesContinuation = { driver } as const
+export const OpenAIResponsesChannel = { driver } as const

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

@@ -5,13 +5,14 @@ import { Auth } from "../route/auth.js"
 import { Endpoint } from "../route/endpoint.js"
 import { Protocol } from "../route/protocol.js"
 import { HttpTransport } from "../route/transport/index.js"
-import { LLMRequest, type JsonSchema, type ToolDefinition } from "../schema/index.js"
+import { LLMEvent, LLMRequest, type JsonSchema, type ToolDefinition } from "../schema/index.js"
 import { OpenResponses } from "./open-responses.js"
 import { optionalArray, ProviderShared } from "./shared.js"
+import { Lifecycle } from "./utils/lifecycle.js"
 import { OpenAIImage } from "./utils/openai-image.js"
-import { ResponsesHostedTools } from "./utils/responses-hosted-tools.js"
 import { ToolSchemaProjection } from "./utils/tool-schema.js"
-import { OpenResponsesChannel } from "./open-responses-channel.js"
+import { OpenResponsesChannel, type Options } from "./open-responses-channel.js"
+import { OpenAIResponsesChannel } from "./openai-responses-channel.js"
 
 const ADAPTER = "openai-responses"
 const NAME = "OpenAI Responses"
@@ -39,8 +40,20 @@ const OpenAIResponsesToolChoice = Schema.Union([
   Schema.Struct({ type: Schema.tag("image_generation") }),
 ])
 
+const OpenAIResponsesInputItem = Schema.Union([
+  Schema.Struct({
+    type: Schema.tag("message"),
+    id: Schema.optionalKey(Schema.String),
+    role: Schema.tag("assistant"),
+    content: Schema.Array(Schema.Struct({ type: Schema.tag("output_text"), text: Schema.String })),
+    phase: Schema.optionalKey(Schema.NullOr(OpenResponses.MessagePhase)),
+  }),
+  OpenResponses.InputItem,
+])
+
 const OpenAIResponsesCoreFields = {
   ...OpenResponses.coreFields,
+  input: Schema.Array(OpenAIResponsesInputItem),
   tools: optionalArray(OpenAIResponsesTools),
   tool_choice: Schema.optional(OpenAIResponsesToolChoice),
 }
@@ -54,6 +67,16 @@ export type OpenAIResponsesBody = Schema.Schema.Type<typeof OpenAIResponsesBody>
 const extension = {
   id: ADAPTER,
   name: NAME,
+  messagePhase: (value: unknown) => (value === null ? null : undefined),
+  lowerMedia: ({ part, media, request }) => {
+    if (request.model.provider !== "xai" || media.mime !== "application/pdf") return undefined
+    return {
+      type: "input_file",
+      filename: part.filename ?? "document.pdf",
+      file_data: media.base64,
+      mime_type: media.mime,
+    }
+  },
 } satisfies OpenResponses.Extension
 
 const nativeImageToolInput = (tool: ToolDefinition) => {
@@ -105,7 +128,46 @@ const fromRequest = Effect.fn("OpenAIResponses.fromRequest")(function* (request:
   } satisfies OpenAIResponsesBody
 })
 
-const hostedToolResult = Effect.fn("OpenAIResponses.hostedToolResult")(function* (item: ResponsesHostedTools.Item) {
+type HostedToolData = OpenResponses.StreamItem & {
+  readonly id: string
+  readonly status?: string
+  readonly action?: unknown
+  readonly queries?: unknown
+  readonly results?: unknown
+  readonly code?: string
+  readonly container_id?: string
+  readonly outputs?: unknown
+  readonly server_label?: string
+  readonly output?: unknown
+  readonly result?: string
+  readonly output_format?: "png" | "jpeg" | "webp"
+  readonly error?: unknown
+}
+
+const HOSTED_TOOLS = {
+  web_search_call: { name: "web_search", input: (item) => item.action ?? {} },
+  web_search_preview_call: { name: "web_search_preview", input: (item) => item.action ?? {} },
+  file_search_call: { name: "file_search", input: (item) => ({ queries: item.queries ?? [] }) },
+  code_interpreter_call: {
+    name: "code_interpreter",
+    input: (item) => ({ code: item.code, container_id: item.container_id }),
+  },
+  computer_use_call: { name: "computer_use", input: (item) => item.action ?? {} },
+  image_generation_call: { name: "image_generation", input: () => ({}) },
+  mcp_call: {
+    name: "mcp",
+    input: (item) => ({ server_label: item.server_label, name: item.name, arguments: item.arguments }),
+  },
+  local_shell_call: { name: "local_shell", input: (item) => item.action ?? {} },
+} as const satisfies Record<string, { readonly name: string; readonly input: (item: HostedToolData) => unknown }>
+
+type HostedToolType = keyof typeof HOSTED_TOOLS
+type HostedToolItem = HostedToolData & { readonly type: HostedToolType }
+
+const isHostedToolItem = (item: OpenResponses.StreamItem): item is HostedToolItem =>
+  item.type in HOSTED_TOOLS && typeof item.id === "string" && item.id.length > 0
+
+const hostedToolResult = Effect.fn("OpenAIResponses.hostedToolResult")(function* (item: HostedToolItem) {
   const isError = item.error !== undefined && item.error !== null
   if (item.type === "image_generation_call" && item.result) {
     yield* Effect.fromResult(Encoding.decodeBase64(item.result)).pipe(
@@ -126,22 +188,32 @@ const hostedToolResult = Effect.fn("OpenAIResponses.hostedToolResult")(function*
   return isError ? { type: "error" as const, value: item.error } : { type: "json" as const, value: item }
 })
 
-const HOSTED_TOOLS = {
-  web_search_call: { name: "web_search", input: (item) => item.action ?? {} },
-  web_search_preview_call: { name: "web_search_preview", input: (item) => item.action ?? {} },
-  file_search_call: { name: "file_search", input: (item) => ({ queries: item.queries ?? [] }) },
-  code_interpreter_call: {
-    name: "code_interpreter",
-    input: (item) => ({ code: item.code, container_id: item.container_id }),
-  },
-  computer_use_call: { name: "computer_use", input: (item) => item.action ?? {} },
-  image_generation_call: { name: "image_generation", input: () => ({}), result: hostedToolResult },
-  mcp_call: {
-    name: "mcp",
-    input: (item) => ({ server_label: item.server_label, name: item.name, arguments: item.arguments }),
-  },
-  local_shell_call: { name: "local_shell", input: (item) => item.action ?? {} },
-} as const satisfies ResponsesHostedTools.Definitions
+const onHostedToolDone = Effect.fn("OpenAIResponses.onHostedToolDone")(function* (
+  state: OpenResponses.ParserState,
+  item: HostedToolItem,
+) {
+  const tool = HOSTED_TOOLS[item.type]
+  const providerMetadata = OpenResponses.providerMetadata(state, { itemId: item.id })
+  const events: LLMEvent[] = []
+  const lifecycle = Lifecycle.stepStart(state.lifecycle, events)
+  events.push(
+    LLMEvent.toolCall({
+      id: item.id,
+      name: tool.name,
+      input: tool.input(item),
+      providerExecuted: true,
+      providerMetadata,
+    }),
+    LLMEvent.toolResult({
+      id: item.id,
+      name: tool.name,
+      result: yield* hostedToolResult(item),
+      providerExecuted: true,
+      providerMetadata,
+    }),
+  )
+  return [{ ...state, lifecycle }, events] satisfies OpenResponses.StepResult
+})
 
 const step = (state: OpenResponses.ParserState, event: OpenResponses.Event) => {
   if (event.type === "response.reasoning_text.delta" || event.type === "response.reasoning_summary.delta")
@@ -152,8 +224,8 @@ const step = (state: OpenResponses.ParserState, event: OpenResponses.Event) => {
     return event.item_id
       ? Effect.succeed(OpenResponses.onReasoningDone(state, event))
       : ProviderShared.eventError(ADAPTER, `${event.type} is missing item_id`)
-  if (event.type === "response.output_item.done" && event.item && ResponsesHostedTools.isItem(event.item, HOSTED_TOOLS))
-    return ResponsesHostedTools.onDone(state, event.item, HOSTED_TOOLS)
+  if (event.type === "response.output_item.done" && event.item && isHostedToolItem(event.item))
+    return onHostedToolDone(state, event.item)
   return OpenResponses.step(state, event)
 }
 
@@ -175,7 +247,11 @@ const endpoint = Endpoint.path<OpenAIResponsesBody>(PATH, { baseURL: DEFAULT_BAS
 const auth = Auth.none
 
 export const httpTransport = HttpTransport.sseJson.with<OpenAIResponsesBody>()
-export const channelTransport = OpenResponsesChannel.transport<OpenAIResponsesBody>
+export const channelTransport = (options: Omit<Options, "driver">) =>
+  OpenResponsesChannel.transport<OpenAIResponsesBody>({
+    ...options,
+    driver: (input) => OpenAIResponsesChannel.driver({ id: options.id, name: options.name, ...input }),
+  })
 export const transport = channelTransport({
   id: ADAPTER,
   name: NAME,

packages/ai/src/protocols/utils/image-input.ts

@@ -16,7 +16,7 @@ export const decodeDataUrl = (
   url: string,
   module: string,
 ): Effect.Effect<{ readonly mediaType: string; readonly data: Uint8Array } | undefined, AIError> => {
-  if (!url.startsWith("data:")) return Effect.undefined
+  if (!url.startsWith("data:")) return Effect.succeed(undefined)
   const match = /^data:([^;,]+);base64,(.*)$/s.exec(url)
   if (!match) return Effect.fail(invalid(module, "Image data URLs must contain a MIME type and base64 data"))
   return Effect.fromResult(Encoding.decodeBase64(match[2])).pipe(

packages/ai/src/protocols/utils/responses-hosted-tools.ts

@@ -1,70 +0,0 @@
-import { Effect } from "effect"
-import { LLMEvent, type AIError, type ToolResultPart } from "../../schema/index.js"
-import { OpenResponses } from "../open-responses.js"
-import { Lifecycle } from "./lifecycle.js"
-
-export type Item = OpenResponses.StreamItem & {
-  readonly id: string
-  readonly status?: string
-  readonly action?: unknown
-  readonly queries?: unknown
-  readonly results?: unknown
-  readonly code?: string
-  readonly container_id?: string
-  readonly outputs?: unknown
-  readonly server_label?: string
-  readonly output?: unknown
-  readonly result?: string
-  readonly output_format?: "png" | "jpeg" | "webp"
-  readonly error?: unknown
-}
-
-export interface Definition {
-  readonly name: string
-  readonly input: (item: Item) => unknown
-  readonly result?: (item: Item) => Effect.Effect<ToolResultPart["result"], AIError>
-}
-
-export type Definitions = Readonly<Record<string, Definition>>
-
-export const isItem = <Tools extends Definitions>(item: OpenResponses.StreamItem, tools: Tools): item is Item =>
-  item.type in tools && typeof item.id === "string" && item.id.length > 0
-
-export const onDone: (
-  state: OpenResponses.ParserState,
-  item: Item,
-  tools: Definitions,
-) => Effect.Effect<OpenResponses.StepResult, AIError> = Effect.fn("ResponsesHostedTools.onDone")(function* (
-  state,
-  item,
-  tools,
-) {
-  const tool = tools[item.type]
-  if (!tool) return [state, []] satisfies OpenResponses.StepResult
-  const providerMetadata = OpenResponses.providerMetadata(state, { itemId: item.id })
-  const events: LLMEvent[] = []
-  const lifecycle = Lifecycle.stepStart(state.lifecycle, events)
-  events.push(
-    LLMEvent.toolCall({
-      id: item.id,
-      name: tool.name,
-      input: tool.input(item),
-      providerExecuted: true,
-      providerMetadata,
-    }),
-    LLMEvent.toolResult({
-      id: item.id,
-      name: tool.name,
-      result: tool.result
-        ? yield* tool.result(item)
-        : item.error !== undefined && item.error !== null
-          ? { type: "error", value: item.error }
-          : { type: "json", value: item },
-      providerExecuted: true,
-      providerMetadata,
-    }),
-  )
-  return [{ ...state, lifecycle }, events] satisfies OpenResponses.StepResult
-})
-
-export * as ResponsesHostedTools from "./responses-hosted-tools.js"

packages/ai/src/protocols/xai-responses.ts

@@ -1,55 +0,0 @@
-import { Effect } from "effect"
-import { Protocol } from "../route/protocol.js"
-import { OpenResponses } from "./open-responses.js"
-import { ProviderShared } from "./shared.js"
-import { ResponsesHostedTools } from "./utils/responses-hosted-tools.js"
-
-const ADAPTER = "xai-responses"
-const NAME = "xAI Responses"
-
-const extension = {
-  id: ADAPTER,
-  name: NAME,
-} satisfies OpenResponses.Extension
-
-const HOSTED_TOOLS = {
-  web_search_call: { name: "web_search", input: (item) => item.action ?? {} },
-  x_search_call: { name: "x_search", input: (item) => item.action ?? {} },
-  file_search_call: { name: "file_search", input: (item) => ({ queries: item.queries ?? [] }) },
-  code_interpreter_call: {
-    name: "code_interpreter",
-    input: (item) => ({ code: item.code, container_id: item.container_id }),
-  },
-  image_generation_call: { name: "image_generation", input: () => ({}) },
-  mcp_call: {
-    name: "mcp",
-    input: (item) => ({ server_label: item.server_label, name: item.name, arguments: item.arguments }),
-  },
-} as const satisfies ResponsesHostedTools.Definitions
-
-const step = (state: OpenResponses.ParserState, event: OpenResponses.Event) => {
-  if (event.type === "response.reasoning_text.delta" || event.type === "response.reasoning_summary.delta")
-    return event.item_id
-      ? Effect.succeed(OpenResponses.onReasoningDelta(state, event, event.item_id))
-      : ProviderShared.eventError(ADAPTER, `${event.type} is missing item_id`)
-  if (event.type === "response.reasoning_text.done" || event.type === "response.reasoning_summary.done")
-    return event.item_id
-      ? Effect.succeed(OpenResponses.onReasoningDone(state, event))
-      : ProviderShared.eventError(ADAPTER, `${event.type} is missing item_id`)
-  if (event.type === "response.output_item.done" && event.item && ResponsesHostedTools.isItem(event.item, HOSTED_TOOLS))
-    return ResponsesHostedTools.onDone(state, event.item, HOSTED_TOOLS)
-  return OpenResponses.step(state, event)
-}
-
-export const protocol = Protocol.make({
-  id: ADAPTER,
-  body: OpenResponses.protocol.body,
-  stream: {
-    event: OpenResponses.protocol.stream.event,
-    initial: (request) => OpenResponses.initial(request, extension),
-    step,
-    terminal: OpenResponses.terminal,
-  },
-})
-
-export * as XAIResponses from "./xai-responses.js"

packages/ai/src/provider-error.ts

@@ -80,9 +80,6 @@ export interface ProviderFailure {
   readonly message: string
   readonly status?: number | undefined
   readonly code?: string | undefined
-  // Raw wire payload, scanned for failure signals (codes, overflow phrases)
-  // that the summary message does not carry. Not shown to users.
-  readonly rawBody?: string | undefined
   readonly retryAfterMs?: number | undefined
   readonly rateLimit?: HttpRateLimitDetails | undefined
   readonly http?: HttpContext | undefined
@@ -92,13 +89,11 @@ export interface ProviderFailure {
 // Keep HTTP failures and provider-reported stream failures on one typed path so
 // session retry policy never needs provider-specific string matching.
 export function classifyProviderFailure(input: ProviderFailure): AIError["reason"] {
-  const body = input.http?.body ?? input.rawBody ?? ""
+  const body = input.http?.body ?? ""
   const codes = [input.code, ...providerCodes(body), ...providerCodes(input.message)]
     .filter((code): code is string => code !== undefined)
     .map((code) => code.toLowerCase())
-  // Scan the raw payload too so signals missing from the summary message
-  // (e.g. overflow phrases nested in a JSON error body) still classify.
-  const text = [input.message, body].filter((value) => value.length > 0).join("\n")
+  const text = body || input.message
   const common = { message: input.message, providerMetadata: input.providerMetadata, http: input.http }
   const clientScoped = input.status === undefined || (input.status >= 400 && input.status < 500)
 

packages/ai/src/providers/xai.ts

@@ -5,8 +5,7 @@ import { HttpOptions, ProviderID, type ModelID } from "../schema/index.js"
 import * as OpenAICompatibleProfiles from "./openai-compatible-profile.js"
 import * as OpenAICompatibleChat from "../protocols/openai-compatible-chat.js"
 import * as OpenAIChat from "../protocols/openai-chat.js"
-import { OpenResponsesChannel } from "../protocols/open-responses-channel.js"
-import { XAIResponses } from "../protocols/xai-responses.js"
+import * as OpenAIResponses from "../protocols/openai-responses.js"
 import { XAIImages } from "../protocols/xai-images.js"
 import type { OpenAIOptionsInput } from "./openai-options.js"
 import type { ProviderPackage } from "../provider-package.js"
@@ -35,9 +34,9 @@ const responsesRoute = Route.make({
   id: "openai-responses",
   provider: id,
   providerMetadataKey: "xai",
-  protocol: XAIResponses.protocol,
+  protocol: OpenAIResponses.protocol,
   endpoint: Endpoint.path("/responses", { baseURL: OpenAICompatibleProfiles.profiles.xai.baseURL }),
-  transport: OpenResponsesChannel.transport({
+  transport: OpenAIResponses.channelTransport({
     id: "openai-responses",
     name: "xAI Responses",
     rotateAfterMs: RESPONSES_WEBSOCKET_ROTATE_AFTER_MS,

packages/ai/src/schema/errors.ts

@@ -153,9 +153,6 @@ export class AIError extends Schema.TaggedError<AIError>()("AI.Error", {
   module: Schema.String,
   method: Schema.String,
   reason: AIErrorReason,
-  // Raw provider payload as a string, so classified failures never lose the
-  // original error detail even when the pretty message is a summary.
-  body: Schema.optional(Schema.String),
 }) {
   override readonly cause = this.reason
 

packages/ai/test/fixtures/recordings/pdf/openai-tool-result.json

@@ -1,14 +1,7 @@
 {
   "version": 1,
   "metadata": {
-    "tags": [
-      "prefix:pdf",
-      "pdf",
-      "provider:openai",
-      "protocol:openai-responses",
-      "tool",
-      "tool-result"
-    ],
+    "tags": ["prefix:pdf", "pdf", "provider:openai", "protocol:openai-responses", "tool", "tool-result"],
     "name": "pdf/openai-tool-result",
     "recordedAt": "2026-07-22T18:15:36.438Z"
   },
@@ -21,7 +14,7 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"gpt-4o-mini\",\"input\":[{\"role\":\"system\",\"content\":\"Read the PDF returned by the tool and follow the user's response format exactly.\"},{\"role\":\"user\",\"content\":[{\"type\":\"input_text\",\"text\":\"Return only the verification code from the PDF.\"}]},{\"type\":\"function_call\",\"call_id\":\"call_pdf_1\",\"name\":\"read_pdf\",\"arguments\":\"{}\"},{\"type\":\"function_call_output\",\"call_id\":\"call_pdf_1\",\"output\":[{\"type\":\"input_text\",\"text\":\"PDF read successfully\"},{\"type\":\"input_file\",\"filename\":\"verification.pdf\",\"file_data\":\"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\"}]}],\"tools\":[{\"type\":\"function\",\"name\":\"read_pdf\",\"description\":\"Read the attached PDF.\",\"parameters\":{\"type\":\"object\",\"properties\":{},\"additionalProperties\":false},\"strict\":false}],\"store\":false,\"max_output_tokens\":40,\"temperature\":0,\"stream\":true}"
+        "body": "{\"model\":\"gpt-4o-mini\",\"input\":[{\"role\":\"system\",\"content\":\"Read the PDF returned by the tool and follow the user's response format exactly.\"},{\"role\":\"user\",\"content\":[{\"type\":\"input_text\",\"text\":\"Return only the verification code from the PDF.\"}]},{\"type\":\"function_call\",\"call_id\":\"call_pdf_1\",\"name\":\"read_pdf\",\"arguments\":\"{}\"},{\"type\":\"function_call_output\",\"call_id\":\"call_pdf_1\",\"output\":[{\"type\":\"input_text\",\"text\":\"PDF read successfully\"},{\"type\":\"input_file\",\"filename\":\"verification.pdf\",\"file_data\":\"data:application/pdf;base64,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\"}]}],\"tools\":[{\"type\":\"function\",\"name\":\"read_pdf\",\"description\":\"Read the attached PDF.\",\"parameters\":{\"type\":\"object\",\"properties\":{},\"additionalProperties\":false},\"strict\":false}],\"store\":false,\"max_output_tokens\":40,\"temperature\":0,\"stream\":true}"
       },
       "response": {
         "status": 200,

packages/ai/test/fixtures/recordings/pdf/openai-user-input.json

@@ -1,13 +1,7 @@
 {
   "version": 1,
   "metadata": {
-    "tags": [
-      "prefix:pdf",
-      "pdf",
-      "provider:openai",
-      "protocol:openai-responses",
-      "user-input"
-    ],
+    "tags": ["prefix:pdf", "pdf", "provider:openai", "protocol:openai-responses", "user-input"],
     "name": "pdf/openai-user-input",
     "recordedAt": "2026-07-22T18:15:34.867Z"
   },
@@ -20,7 +14,7 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"gpt-4o-mini\",\"input\":[{\"role\":\"user\",\"content\":[{\"type\":\"input_file\",\"filename\":\"verification.pdf\",\"file_data\":\"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\"},{\"type\":\"input_text\",\"text\":\"Return only the verification code from the PDF.\"}]}],\"store\":false,\"max_output_tokens\":40,\"temperature\":0,\"stream\":true}"
+        "body": "{\"model\":\"gpt-4o-mini\",\"input\":[{\"role\":\"user\",\"content\":[{\"type\":\"input_file\",\"filename\":\"verification.pdf\",\"file_data\":\"data:application/pdf;base64,JVBERi0xLjQKMSAwIG9iago8PCAvVHlwZSAvQ2F0YWxvZyAvUGFnZXMgMiAwIFIgPj4KZW5kb2JqCjIgMCBvYmoKPDwgL1R5cGUgL1BhZ2VzIC9LaWRzIFszIDAgUl0gL0NvdW50IDEgPj4KZW5kb2JqCjMgMCBvYmoKPDwgL1R5cGUgL1BhZ2UgL1BhcmVudCAyIDAgUiAvTWVkaWFCb3ggWzAgMCA2MTIgNzkyXSAvUmVzb3VyY2VzIDw8IC9Gb250IDw8IC9GMSA1IDAgUiA+PiA+PiAvQ29udGVudHMgNCAwIFIgPj4KZW5kb2JqCjQgMCBvYmoKPDwgL0xlbmd0aCA3NSA+PgpzdHJlYW0KQlQKL0YxIDE4IFRmCjcyIDcyMCBUZAooUERGIGNhc3NldHRlIHZlcmlmaWNhdGlvbiBjb2RlOiBPUkNISUQtNzM5MSkgVGoKRVQKZW5kc3RyZWFtCmVuZG9iago1IDAgb2JqCjw8IC9UeXBlIC9Gb250IC9TdWJ0eXBlIC9UeXBlMSAvQmFzZUZvbnQgL0hlbHZldGljYSA+PgplbmRvYmoKeHJlZgowIDYKMDAwMDAwMDAwMCA2NTUzNSBmIAowMDAwMDAwMDA5IDAwMDAwIG4gCjAwMDAwMDAwNTggMDAwMDAgbiAKMDAwMDAwMDExNSAwMDAwMCBuIAowMDAwMDAwMjQxIDAwMDAwIG4gCjAwMDAwMDAzNjUgMDAwMDAgbiAKdHJhaWxlcgo8PCAvU2l6ZSA2IC9Sb290IDEgMCBSID4+CnN0YXJ0eHJlZgo0MzUKJSVFT0YK\"},{\"type\":\"input_text\",\"text\":\"Return only the verification code from the PDF.\"}]}],\"store\":false,\"max_output_tokens\":40,\"temperature\":0,\"stream\":true}"
       },
       "response": {
         "status": 200,

packages/ai/test/fixtures/recordings/pdf/xai-tool-result.json

@@ -1,17 +1,9 @@
 {
   "version": 1,
   "metadata": {
-    "tags": [
-      "prefix:pdf",
-      "pdf",
-      "provider:xai",
-      "protocol:xai-responses",
-      "tool",
-      "tool-result"
-    ],
+    "tags": ["prefix:pdf", "pdf", "provider:xai", "protocol:openai-responses", "tool", "tool-result"],
     "name": "pdf/xai-tool-result",
-    "recordedAt": "2026-07-22T18:15:43.608Z",
-    "protocol": "xai-responses"
+    "recordedAt": "2026-07-22T18:15:43.608Z"
   },
   "interactions": [
     {
@@ -22,7 +14,7 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"grok-4.5\",\"input\":[{\"role\":\"system\",\"content\":\"Read the PDF returned by the tool and follow the user's response format exactly.\"},{\"role\":\"user\",\"content\":[{\"type\":\"input_text\",\"text\":\"Return only the verification code from the PDF.\"}]},{\"type\":\"function_call\",\"call_id\":\"call_pdf_1\",\"name\":\"read_pdf\",\"arguments\":\"{}\"},{\"type\":\"function_call_output\",\"call_id\":\"call_pdf_1\",\"output\":[{\"type\":\"input_text\",\"text\":\"PDF read successfully\"},{\"type\":\"input_file\",\"filename\":\"verification.pdf\",\"file_data\":\"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\"}]}],\"tools\":[{\"type\":\"function\",\"name\":\"read_pdf\",\"description\":\"Read the attached PDF.\",\"parameters\":{\"type\":\"object\",\"properties\":{},\"additionalProperties\":false},\"strict\":false}],\"store\":false,\"max_output_tokens\":40,\"temperature\":0,\"stream\":true}"
+        "body": "{\"model\":\"grok-4.5\",\"input\":[{\"role\":\"system\",\"content\":\"Read the PDF returned by the tool and follow the user's response format exactly.\"},{\"role\":\"user\",\"content\":[{\"type\":\"input_text\",\"text\":\"Return only the verification code from the PDF.\"}]},{\"type\":\"function_call\",\"call_id\":\"call_pdf_1\",\"name\":\"read_pdf\",\"arguments\":\"{}\"},{\"type\":\"function_call_output\",\"call_id\":\"call_pdf_1\",\"output\":[{\"type\":\"input_text\",\"text\":\"PDF read successfully\"},{\"type\":\"input_file\",\"filename\":\"verification.pdf\",\"file_data\":\"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\",\"mime_type\":\"application/pdf\"}]}],\"tools\":[{\"type\":\"function\",\"name\":\"read_pdf\",\"description\":\"Read the attached PDF.\",\"parameters\":{\"type\":\"object\",\"properties\":{},\"additionalProperties\":false},\"strict\":false}],\"store\":false,\"max_output_tokens\":40,\"temperature\":0,\"stream\":true}"
       },
       "response": {
         "status": 200,

packages/ai/test/fixtures/recordings/pdf/xai-user-input.json

@@ -1,16 +1,9 @@
 {
   "version": 1,
   "metadata": {
-    "tags": [
-      "prefix:pdf",
-      "pdf",
-      "provider:xai",
-      "protocol:xai-responses",
-      "user-input"
-    ],
+    "tags": ["prefix:pdf", "pdf", "provider:xai", "protocol:openai-responses", "user-input"],
     "name": "pdf/xai-user-input",
-    "recordedAt": "2026-07-22T18:15:42.429Z",
-    "protocol": "xai-responses"
+    "recordedAt": "2026-07-22T18:15:42.429Z"
   },
   "interactions": [
     {
@@ -21,7 +14,7 @@
         "headers": {
           "content-type": "application/json"
         },
-        "body": "{\"model\":\"grok-4.5\",\"input\":[{\"role\":\"user\",\"content\":[{\"type\":\"input_file\",\"filename\":\"verification.pdf\",\"file_data\":\"JVBERi0xLjQKMSAwIG9iago8PCAvVHlwZSAvQ2F0YWxvZyAvUGFnZXMgMiAwIFIgPj4KZW5kb2JqCjIgMCBvYmoKPDwgL1R5cGUgL1BhZ2VzIC9LaWRzIFszIDAgUl0gL0NvdW50IDEgPj4KZW5kb2JqCjMgMCBvYmoKPDwgL1R5cGUgL1BhZ2UgL1BhcmVudCAyIDAgUiAvTWVkaWFCb3ggWzAgMCA2MTIgNzkyXSAvUmVzb3VyY2VzIDw8IC9Gb250IDw8IC9GMSA1IDAgUiA+PiA+PiAvQ29udGVudHMgNCAwIFIgPj4KZW5kb2JqCjQgMCBvYmoKPDwgL0xlbmd0aCA3NSA+PgpzdHJlYW0KQlQKL0YxIDE4IFRmCjcyIDcyMCBUZAooUERGIGNhc3NldHRlIHZlcmlmaWNhdGlvbiBjb2RlOiBPUkNISUQtNzM5MSkgVGoKRVQKZW5kc3RyZWFtCmVuZG9iago1IDAgb2JqCjw8IC9UeXBlIC9Gb250IC9TdWJ0eXBlIC9UeXBlMSAvQmFzZUZvbnQgL0hlbHZldGljYSA+PgplbmRvYmoKeHJlZgowIDYKMDAwMDAwMDAwMCA2NTUzNSBmIAowMDAwMDAwMDA5IDAwMDAwIG4gCjAwMDAwMDAwNTggMDAwMDAgbiAKMDAwMDAwMDExNSAwMDAwMCBuIAowMDAwMDAwMjQxIDAwMDAwIG4gCjAwMDAwMDAzNjUgMDAwMDAgbiAKdHJhaWxlcgo8PCAvU2l6ZSA2IC9Sb290IDEgMCBSID4+CnN0YXJ0eHJlZgo0MzUKJSVFT0YK\"},{\"type\":\"input_text\",\"text\":\"Return only the verification code from the PDF.\"}]}],\"store\":false,\"max_output_tokens\":40,\"temperature\":0,\"stream\":true}"
+        "body": "{\"model\":\"grok-4.5\",\"input\":[{\"role\":\"user\",\"content\":[{\"type\":\"input_file\",\"filename\":\"verification.pdf\",\"file_data\":\"JVBERi0xLjQKMSAwIG9iago8PCAvVHlwZSAvQ2F0YWxvZyAvUGFnZXMgMiAwIFIgPj4KZW5kb2JqCjIgMCBvYmoKPDwgL1R5cGUgL1BhZ2VzIC9LaWRzIFszIDAgUl0gL0NvdW50IDEgPj4KZW5kb2JqCjMgMCBvYmoKPDwgL1R5cGUgL1BhZ2UgL1BhcmVudCAyIDAgUiAvTWVkaWFCb3ggWzAgMCA2MTIgNzkyXSAvUmVzb3VyY2VzIDw8IC9Gb250IDw8IC9GMSA1IDAgUiA+PiA+PiAvQ29udGVudHMgNCAwIFIgPj4KZW5kb2JqCjQgMCBvYmoKPDwgL0xlbmd0aCA3NSA+PgpzdHJlYW0KQlQKL0YxIDE4IFRmCjcyIDcyMCBUZAooUERGIGNhc3NldHRlIHZlcmlmaWNhdGlvbiBjb2RlOiBPUkNISUQtNzM5MSkgVGoKRVQKZW5kc3RyZWFtCmVuZG9iago1IDAgb2JqCjw8IC9UeXBlIC9Gb250IC9TdWJ0eXBlIC9UeXBlMSAvQmFzZUZvbnQgL0hlbHZldGljYSA+PgplbmRvYmoKeHJlZgowIDYKMDAwMDAwMDAwMCA2NTUzNSBmIAowMDAwMDAwMDA5IDAwMDAwIG4gCjAwMDAwMDAwNTggMDAwMDAgbiAKMDAwMDAwMDExNSAwMDAwMCBuIAowMDAwMDAwMjQxIDAwMDAwIG4gCjAwMDAwMDAzNjUgMDAwMDAgbiAKdHJhaWxlcgo8PCAvU2l6ZSA2IC9Sb290IDEgMCBSID4+CnN0YXJ0eHJlZgo0MzUKJSVFT0YK\",\"mime_type\":\"application/pdf\"},{\"type\":\"input_text\",\"text\":\"Return only the verification code from the PDF.\"}]}],\"store\":false,\"max_output_tokens\":40,\"temperature\":0,\"stream\":true}"
       },
       "response": {
         "status": 200,

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

@@ -106,20 +106,3 @@ describe("provider error classification", () => {
     expect(classifyProviderFailure({ message: "not-json" })._tag).toBe("UnknownProvider")
   })
 })
-
-describe("provider error rawBody classification", () => {
-  test("classifies overflow signals buried in the raw payload when the summary is vague", () => {
-    const reason = classifyProviderFailure({
-      message: "Request failed",
-      rawBody: '{"error":{"message":"This model\'s maximum context length is 40960 tokens"}}',
-    })
-    expect(reason._tag).toBe("InvalidRequest")
-    expect(reason).toMatchObject({ classification: "context-overflow" })
-  })
-
-  test("extracts nested codes from the raw payload", () => {
-    expect(
-      classifyProviderFailure({ message: "Request failed", rawBody: '{"error":{"code":"insufficient_quota"}}' })._tag,
-    ).toBe("QuotaExceeded")
-  })
-})

packages/ai/test/provider/gemini.test.ts

@@ -848,7 +848,7 @@ describe("Gemini route", () => {
         providerMetadata: { google: { thoughtSignature: "thought_sig" } },
       })
       expect(toolCall).toMatchObject({
-        id: "provider_call",
+        id: "tool_0",
         providerMetadata: { google: { functionCallId: "provider_call", thoughtSignature: "tool_sig" } },
       })
       expect(response.events.findIndex((event) => event.type === "reasoning-end")).toBeLessThan(
@@ -862,14 +862,14 @@ describe("Gemini route", () => {
             Message.assistant([
               { type: "reasoning", text: "thinking", providerMetadata: reasoningEnd?.providerMetadata },
               ToolCallPart.make({
-                id: "provider_call",
+                id: "tool_0",
                 name: "lookup",
                 input: { query: "weather" },
                 providerMetadata: toolCall?.providerMetadata,
               }),
             ]),
             Message.tool({
-              id: "provider_call",
+              id: "tool_0",
               name: "lookup",
               result: "done",
               resultType: "text",
@@ -1101,17 +1101,21 @@ describe("Gemini route", () => {
         providerMetadata: { google: { promptTokenCount: 5, candidatesTokenCount: 1 } },
       })
 
-      expect(response.toolCalls[0].id).toMatch(/^tool_[0-9a-zA-Z]+$/)
-      expect(response.toolCalls[0]).toMatchObject({
-        type: "tool-call",
-        name: "lookup",
-        input: { query: "weather" },
-      })
+      expect(response.toolCalls).toEqual([
+        {
+          type: "tool-call",
+          id: "tool_0",
+          name: "lookup",
+          input: { query: "weather" },
+          providerExecuted: undefined,
+          providerMetadata: undefined,
+        },
+      ])
       expect(response.events).toEqual([
         { type: "step-start", index: 0 },
         {
           type: "tool-call",
-          id: response.toolCalls[0].id,
+          id: "tool_0",
           name: "lookup",
           input: { query: "weather" },
           providerExecuted: undefined,
@@ -1154,8 +1158,7 @@ describe("Gemini route", () => {
         ),
       )
 
-      expect(response.toolCalls[0].id).toMatch(/^tool_[0-9a-zA-Z]+$/)
-      expect(response.toolCalls).toMatchObject([{ type: "tool-call", name: "ping", input: {} }])
+      expect(response.toolCalls).toEqual([{ type: "tool-call", id: "tool_0", name: "ping", input: {} }])
     }),
   )
 
@@ -1195,7 +1198,7 @@ describe("Gemini route", () => {
             content: {
               role: "model",
               parts: [
-                { functionCall: { id: "call_0", name: "lookup", args: { query: "weather" } } },
+                { functionCall: { id: "tool_0", name: "lookup", args: { query: "weather" } } },
                 { functionCall: { name: "lookup", args: { query: "news" } } },
               ],
             },
@@ -1209,20 +1212,16 @@ describe("Gemini route", () => {
         }),
       ).pipe(Effect.provide(fixedResponse(body)))
 
-      expect(response.toolCalls[0]).toMatchObject({
-        type: "tool-call",
-        id: "call_0",
-        name: "lookup",
-        input: { query: "weather" },
-        providerMetadata: { google: { functionCallId: "call_0" } },
-      })
-      expect(response.toolCalls[1]).toMatchObject({
-        type: "tool-call",
-        name: "lookup",
-        input: { query: "news" },
-      })
-      expect(response.toolCalls[1].id).toMatch(/^tool_[0-9a-zA-Z]+$/)
-      expect(response.toolCalls[0].id).not.toBe(response.toolCalls[1].id)
+      expect(response.toolCalls).toEqual([
+        {
+          type: "tool-call",
+          id: "tool_0",
+          name: "lookup",
+          input: { query: "weather" },
+          providerMetadata: { google: { functionCallId: "tool_0" } },
+        },
+        { type: "tool-call", id: "tool_1", name: "lookup", input: { query: "news" } },
+      ])
       expect(response.events.at(-1)).toMatchObject({
         type: "finish",
         reason: { normalized: "tool-calls", raw: "STOP" },
@@ -1230,31 +1229,6 @@ describe("Gemini route", () => {
     }),
   )
 
-  it.effect("assigns distinct unique fallback ids across separate requests", () =>
-    Effect.gen(function* () {
-      const body = sseEvents({
-        candidates: [
-          {
-            content: {
-              role: "model",
-              parts: [{ functionCall: { name: "lookup", args: { query: "weather" } } }],
-            },
-            finishReason: "STOP",
-          },
-        ],
-      })
-      const req = LLMRequest.update(request, {
-        tools: [ToolDefinition.make({ name: "lookup", description: "Lookup data", inputSchema: { type: "object" } })],
-      })
-      const first = yield* LLMClient.generate(req).pipe(Effect.provide(fixedResponse(body)))
-      const second = yield* LLMClient.generate(req).pipe(Effect.provide(fixedResponse(body)))
-
-      expect(first.toolCalls[0].id).toMatch(/^tool_[0-9a-zA-Z]+$/)
-      expect(second.toolCalls[0].id).toMatch(/^tool_[0-9a-zA-Z]+$/)
-      expect(first.toolCalls[0].id).not.toBe(second.toolCalls[0].id)
-    }),
-  )
-
   it.effect("maps length and content-filter finish reasons", () =>
     Effect.gen(function* () {
       const length = yield* LLMClient.generate(request).pipe(

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

@@ -93,7 +93,7 @@ describe("Open Responses-compatible route", () => {
     }),
   )
 
-  it.effect("preserves nullable phases in the forgiving Open Responses baseline", () =>
+  it.effect("omits OpenAI-only nullable phases from the Open Responses baseline", () =>
     Effect.gen(function* () {
       const model = configure({
         apiKey: "test-key",
@@ -113,9 +113,7 @@ describe("Open Responses-compatible route", () => {
       )
 
       expect(prepared.body).toMatchObject({
-        input: [
-          { type: "message", role: "assistant", content: [{ type: "output_text", text: "Unclassified." }], phase: null },
-        ],
+        input: [{ type: "message", role: "assistant", content: [{ type: "output_text", text: "Unclassified." }] }],
       })
     }),
   )

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

@@ -28,7 +28,7 @@ import * as Azure from "../../src/providers/azure.js"
 import * as OpenAI from "../../src/providers/openai.js"
 import * as XAI from "../../src/providers/xai.js"
 import * as OpenAIResponses from "../../src/protocols/openai-responses.js"
-import { OpenResponsesContinuation } from "../../src/protocols/open-responses-continuation.js"
+import { OpenAIResponsesChannel } from "../../src/protocols/openai-responses-channel.js"
 import * as ProviderShared from "../../src/protocols/shared.js"
 import { continuationRequest, nativeOpenAIResponsesContinuation } from "../continuation-scenarios.js"
 import { it } from "../lib/effect.js"
@@ -68,7 +68,7 @@ const baseChannelDriver = (message: string): WebSocketChannelDriver => ({
 
 const continuationDriver = (request: Readonly<Record<string, unknown>>) => {
   const message = ProviderShared.encodeJson(request)
-  return OpenResponsesContinuation.driver({
+  return OpenAIResponsesChannel.driver({
     id: "openai-responses",
     name: "OpenAI Responses",
     request,
@@ -1273,7 +1273,7 @@ describe("OpenAI Responses route", () => {
         {
           type: "input_file",
           filename: "report.pdf",
-          file_data: "JVBERi0xLjQ=",
+          file_data: "data:application/pdf;base64,JVBERi0xLjQ=",
         },
       ])
     }),
@@ -1300,12 +1300,12 @@ describe("OpenAI Responses route", () => {
       )
 
       expect(expectToolOutput(prepared.body).output).toEqual([
-        { type: "input_file", filename: "report.pdf", file_data: base64 },
+        { type: "input_file", filename: "report.pdf", file_data: dataUrl },
       ])
     }),
   )
 
-  it.effect("uses standard inline file encoding for xAI PDF tool results", () =>
+  it.effect("uses xAI inline file encoding for PDF tool results", () =>
     Effect.gen(function* () {
       const prepared = yield* compileRequest(
         LLM.request({
@@ -1334,6 +1334,7 @@ describe("OpenAI Responses route", () => {
           type: "input_file",
           filename: "report.pdf",
           file_data: "JVBERi0xLjQ=",
+          mime_type: "application/pdf",
         },
       ])
     }),
@@ -1358,61 +1359,7 @@ describe("OpenAI Responses route", () => {
       )
 
       expect(expectToolOutput(prepared.body).output).toEqual([
-        { type: "input_file", filename: "file", file_data: "AAECAw==" },
-      ])
-    }),
-  )
-
-  it.effect("lowers remote tool-result media URLs without base64 wrapping", () =>
-    Effect.gen(function* () {
-      const prepared = yield* compileRequest(
-        LLM.request({
-          model,
-          messages: [
-            Message.assistant([ToolCallPart.make({ id: "call_1", name: "fetch", input: {} })]),
-            Message.tool({
-              id: "call_1",
-              name: "fetch",
-              resultType: "content",
-              result: [
-                { type: "file", uri: "https://example.com/image.png", mime: "image/png" },
-                { type: "file", uri: "https://example.com/report.pdf", mime: "application/pdf", name: "report.pdf" },
-              ],
-            }),
-          ],
-        }),
-      )
-
-      expect(expectToolOutput(prepared.body).output).toEqual([
-        { type: "input_image", image_url: "https://example.com/image.png" },
-        { type: "input_file", filename: "report.pdf", file_url: "https://example.com/report.pdf" },
-      ])
-    }),
-  )
-
-  it.effect("lowers tool-result videos as input_video", () =>
-    Effect.gen(function* () {
-      const prepared = yield* compileRequest(
-        LLM.request({
-          model,
-          messages: [
-            Message.assistant([ToolCallPart.make({ id: "call_1", name: "record", input: {} })]),
-            Message.tool({
-              id: "call_1",
-              name: "record",
-              resultType: "content",
-              result: [
-                { type: "file", uri: "data:video/mp4;base64,AAECAw==", mime: "video/mp4" },
-                { type: "file", uri: "https://example.com/demo.mp4", mime: "video/mp4" },
-              ],
-            }),
-          ],
-        }),
-      )
-
-      expect(expectToolOutput(prepared.body).output).toEqual([
-        { type: "input_video", video_url: "data:video/mp4;base64,AAECAw==" },
-        { type: "input_video", video_url: "https://example.com/demo.mp4" },
+        { type: "input_file", filename: "file", file_data: "data:audio/mpeg;base64,AAECAw==" },
       ])
     }),
   )
@@ -2765,7 +2712,7 @@ describe("OpenAI Responses route", () => {
             {
               type: "input_file",
               filename: "report.pdf",
-              file_data: "JVBERi0xLjQ=",
+              file_data: "data:application/pdf;base64,JVBERi0xLjQ=",
             },
           ],
         },
@@ -2773,7 +2720,7 @@ describe("OpenAI Responses route", () => {
     }),
   )
 
-  it.effect("uses standard inline file encoding for xAI user PDFs", () =>
+  it.effect("uses xAI inline file encoding for user PDFs", () =>
     Effect.gen(function* () {
       const prepared = yield* compileRequest(
         LLM.request({
@@ -2797,6 +2744,7 @@ describe("OpenAI Responses route", () => {
               type: "input_file",
               filename: "report.pdf",
               file_data: "JVBERi0xLjQ=",
+              mime_type: "application/pdf",
             },
           ],
         },
@@ -2821,7 +2769,7 @@ describe("OpenAI Responses route", () => {
             {
               type: "input_file",
               filename: "file",
-              file_data: "AAECAw==",
+              file_data: "data:application/x-tar;base64,AAECAw==",
             },
           ],
         },
@@ -2829,37 +2777,6 @@ describe("OpenAI Responses route", () => {
     }),
   )
 
-  it.effect("lowers remote user media URLs without base64 wrapping", () =>
-    Effect.gen(function* () {
-      const prepared = yield* compileRequest(
-        LLM.request({
-          model,
-          messages: [
-            Message.user([
-              { type: "media", mediaType: "image/png", data: "https://example.com/image.png" },
-              {
-                type: "media",
-                mediaType: "application/pdf",
-                data: "https://example.com/report.pdf",
-                filename: "report.pdf",
-              },
-            ]),
-          ],
-        }),
-      )
-
-      expect(prepared.body.input).toEqual([
-        {
-          role: "user",
-          content: [
-            { type: "input_image", image_url: "https://example.com/image.png" },
-            { type: "input_file", filename: "report.pdf", file_url: "https://example.com/report.pdf" },
-          ],
-        },
-      ])
-    }),
-  )
-
   it.effect("fails with a typed rate limit for provider error frames", () =>
     Effect.gen(function* () {
       const error = yield* LLMClient.generate(request).pipe(
@@ -3016,42 +2933,36 @@ describe("OpenAI Responses route", () => {
     }),
   )
 
-  it.effect("falls back to the raw payload when error is null", () =>
+  it.effect("falls back to a stable default when error is null", () =>
     Effect.gen(function* () {
       const error = yield* LLMClient.generate(request).pipe(
         Effect.provide(fixedResponse(sseEvents({ type: "error", error: null }))),
         Effect.flip,
       )
 
-      expect(error.reason).toMatchObject({ _tag: "UnknownProvider" })
-      expect(error.reason.message).toContain('"error":null')
-      expect(error.body).toBe(error.reason.message)
+      expect(error.reason).toMatchObject({ _tag: "UnknownProvider", message: "OpenAI Responses stream error" })
     }),
   )
 
-  it.effect("falls back to the raw payload when both error and response are absent", () =>
+  it.effect("falls back to a stable default when both error and response are absent", () =>
     Effect.gen(function* () {
       const error = yield* LLMClient.generate(request).pipe(
         Effect.provide(fixedResponse(sseEvents({ type: "error" }))),
         Effect.flip,
       )
 
-      expect(error.reason).toMatchObject({ _tag: "UnknownProvider" })
-      expect(error.reason.message).toContain('"type":"error"')
-      expect(error.body).toBe(error.reason.message)
+      expect(error.reason).toMatchObject({ _tag: "UnknownProvider", message: "OpenAI Responses stream error" })
     }),
   )
 
-  it.effect("keeps the raw response payload when response.failed has no error payload", () =>
+  it.effect("falls back to a stable default when response.failed has no error payload", () =>
     Effect.gen(function* () {
       const error = yield* LLMClient.generate(request).pipe(
         Effect.provide(fixedResponse(sseEvents({ type: "response.failed", response: { id: "resp_failed_3" } }))),
         Effect.flip,
       )
 
-      expect(error.reason).toMatchObject({ _tag: "UnknownProvider" })
-      expect(error.reason.message).toContain('"resp_failed_3"')
-      expect(error.body).toBe(error.reason.message)
+      expect(error.reason).toMatchObject({ _tag: "UnknownProvider", message: "OpenAI Responses response failed" })
     }),
   )
 

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

@@ -64,7 +64,7 @@ const targets: ReadonlyArray<{
     id: "xai",
     name: "xAI Grok 4.5",
     provider: "xai",
-    protocol: "xai-responses",
+    protocol: "openai-responses",
     requires: "XAI_API_KEY",
     filename: "verification.pdf",
     maxTokens: 40,

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

@@ -1,77 +0,0 @@
-import { describe, expect } from "bun:test"
-import { Effect } from "effect"
-import { LLM, LLMEvent } from "../../src/index.js"
-import { XAI } from "../../src/providers.js"
-import { OpenResponses } from "../../src/protocols/open-responses.js"
-import { OpenAIResponses } from "../../src/protocols/openai-responses.js"
-import { XAIResponses } from "../../src/protocols/xai-responses.js"
-import { LLMClient } from "../../src/route.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 model = XAI.configure({ apiKey: "test", baseURL: "https://api.x.ai/v1" }).responses("grok-4.6")
-
-describe("xAI Responses route", () => {
-  it.effect("extends the Open Responses baseline directly", () =>
-    Effect.gen(function* () {
-      expect(XAIResponses.protocol.body).toBe(OpenResponses.protocol.body)
-      expect(XAIResponses.protocol.body).not.toBe(OpenAIResponses.protocol.body)
-
-      const prepared = yield* compileRequest(LLM.request({ model, prompt: "Hello" }))
-      expect(prepared.protocol).toBe("xai-responses")
-    }),
-  )
-
-  it.effect("parses xAI reasoning text events", () =>
-    Effect.gen(function* () {
-      const response = yield* LLMClient.generate(LLM.request({ model, prompt: "Think" })).pipe(
-        Effect.provide(
-          fixedResponse(
-            sseEvents(
-              { type: "response.reasoning_text.delta", item_id: "reasoning_1", delta: "Considering." },
-              { type: "response.reasoning_text.done", item_id: "reasoning_1" },
-              {
-                type: "response.output_item.done",
-                item: { type: "reasoning", id: "reasoning_1", encrypted_content: "opaque" },
-              },
-              { type: "response.completed", response: { id: "response_1" } },
-            ),
-          ),
-        ),
-      )
-
-      expect(response.message.content.find((part) => part.type === "reasoning")).toMatchObject({
-        type: "reasoning",
-        text: "Considering.",
-        providerMetadata: { xai: { itemId: "reasoning_1", reasoningEncryptedContent: "opaque" } },
-      })
-    }),
-  )
-
-  it.effect("parses xAI hosted tool items", () =>
-    Effect.gen(function* () {
-      const response = yield* LLMClient.generate(LLM.request({ model, prompt: "Search X" })).pipe(
-        Effect.provide(
-          fixedResponse(
-            sseEvents(
-              {
-                type: "response.output_item.done",
-                item: { type: "x_search_call", id: "x_search_1", status: "completed", action: { query: "news" } },
-              },
-              { type: "response.completed", response: { id: "response_1" } },
-            ),
-          ),
-        ),
-      )
-
-      expect(response.events.find(LLMEvent.is.toolCall)).toMatchObject({
-        id: "x_search_1",
-        name: "x_search",
-        input: { query: "news" },
-        providerExecuted: true,
-      })
-    }),
-  )
-})

packages/app/AGENTS.md

@@ -19,12 +19,6 @@
 
 - Always prefer `createStore` over multiple `createSignal` calls
 
-## Typography
-
-- Use `--line-height-compact` (`16px`) for `13px` compact UI text and `--line-height-base` (`20px`) for body text.
-- Do not use `leading-none`, `line-height: 1`, or a `13px` line height for normal text. Inter descenders clip inside truncation and overflow containers.
-- Keep control and row heights explicit. Fix font metrics directly rather than using transforms, negative margins, or clip-padding compensation.
-
 ## Localization
 
 - NEVER hardcode user-visible English strings in production code. ALWAYS use an i18n key for visible copy, placeholders, accessible labels, tooltips, menus, dialogs, toasts, empty states, and displayed errors.

packages/app/e2e/performance/timeline-stability/fixture.ts

@@ -259,34 +259,6 @@ export function event(
   return makeEvent(type, data)
 }
 
-export function compactionStarted(data: Extract<OpenCodeEvent, { type: "session.compaction.started" }>["data"]) {
-  return makeEvent("session.compaction.started", data)
-}
-
-export function compactionDelta(data: Extract<OpenCodeEvent, { type: "session.compaction.delta" }>["data"]) {
-  return makeEvent("session.compaction.delta", data)
-}
-
-export function compactionEnded(data: Extract<OpenCodeEvent, { type: "session.compaction.ended" }>["data"]) {
-  return makeEvent("session.compaction.ended", data)
-}
-
-export function compactionFailed(data: Extract<OpenCodeEvent, { type: "session.compaction.failed" }>["data"]) {
-  return makeEvent("session.compaction.failed", data)
-}
-
-export function toolInputStarted(data: Extract<OpenCodeEvent, { type: "session.tool.input.started" }>["data"]) {
-  return makeEvent("session.tool.input.started", data)
-}
-
-export function toolInputEnded(data: Extract<OpenCodeEvent, { type: "session.tool.input.ended" }>["data"]) {
-  return makeEvent("session.tool.input.ended", data)
-}
-
-export function toolCalled(data: Extract<OpenCodeEvent, { type: "session.tool.called" }>["data"]) {
-  return makeEvent("session.tool.called", data)
-}
-
 export function validateTimelineEvent(input: unknown): OpenCodeEvent {
   if (!input || typeof input !== "object") throw new Error("Timeline event must be an object")
   if (!("type" in input) || typeof input.type !== "string") throw new Error("Timeline event requires a type")

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

@@ -1,5 +1,4 @@
 import { expect, test } from "@playwright/test"
-import { createTwoFilesPatch } from "diff"
 import {
   defineVisualRegions,
   reportVisualStability,
@@ -14,63 +13,10 @@ import {
   setupTimeline,
   shell,
   textPart,
-  toolPart,
   userMessage,
   type TimelineMessage,
 } from "./fixture"
 
-test("follows an expanded patch that arrives as the user reaches the bottom", async ({ page }) => {
-  const toolID = "prt_bottom_follow_patch"
-  const input = { patchText: "Update src/edit.ts" }
-  const timeline = await setupTimeline(page, {
-    messages: [
-      ...history(20),
-      userMessage(),
-      assistantMessage([textPart("prt_bottom_follow_text", "Working")], { completed: false }),
-    ],
-    settings: { editToolPartsExpanded: true },
-    reducedMotion: true,
-  })
-  const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
-  await scroller.evaluate((element) => {
-    element.scrollTop = Math.max(0, element.scrollHeight - element.clientHeight - 300)
-    element.dispatchEvent(new WheelEvent("wheel", { bubbles: true, cancelable: true, deltaY: 300 }))
-    element.scrollTop = element.scrollHeight
-  })
-  await expect
-    .poll(() => scroller.evaluate((element) => element.scrollHeight - element.clientHeight - element.scrollTop))
-    .toBeLessThanOrEqual(1)
-
-  await timeline.send(partUpdated(toolPart(toolID, "patch", "running", input)))
-  await timeline.send(
-    partUpdated(
-      toolPart(toolID, "patch", "completed", input, {
-        metadata: {
-          files: [
-            {
-              file: "src/edit.ts",
-              status: "modified",
-              patch: createTwoFilesPatch(
-                "a/src/edit.ts",
-                "b/src/edit.ts",
-                Array.from({ length: 40 }, (_, index) => `export const value${index} = ${index}\n`).join(""),
-                Array.from({ length: 40 }, (_, index) => `export const value${index} = ${index + 1}\n`).join(""),
-              ),
-              additions: 40,
-              deletions: 40,
-            },
-          ],
-        },
-      }),
-    ),
-  )
-
-  await timeline.waitForPart(toolID)
-  await expect
-    .poll(() => scroller.evaluate((element) => element.scrollHeight - element.clientHeight - element.scrollTop))
-    .toBeLessThanOrEqual(1)
-})
-
 test("does not reverse visible rows when the user wheels during shell remeasurement", async ({ page }, testInfo) => {
   const shellID = "prt_wheel_01_shell"
   const followingID = "prt_wheel_02_following"

packages/app/e2e/performance/timeline/first-navigation-benchmark.spec.ts

@@ -53,37 +53,6 @@ benchmark.describe("performance: first navigation paint", () => {
     expect(result.summary.unknownSamples).toBe(0)
   })
 
-  benchmark("opens a session from the new session page without a blank frame", async ({ page, report }) => {
-    await mockStressTimeline(page)
-    await installTimelineSettings(page)
-    await installStressSessionTabs(page, { draftID })
-    await page.goto("/")
-
-    const draftHref = stressDraftHref(draftID)
-    const draftTab = page.locator(`[data-slot="titlebar-tabs"] a[href="${draftHref}"]`)
-    await expect(draftTab).toHaveCount(1)
-    await draftTab.click()
-    await expect(page.locator('[data-component="new-session"]')).toBeVisible()
-
-    const href = stressSessionHref(fixture.targetID)
-    const sessionTab = page.locator(`[data-slot="titlebar-tabs"] a[href="${href}"]`)
-    await expect(sessionTab).toHaveCount(1)
-    const result = await measureFirstNavigation(page, {
-      href,
-      destinationPath: href,
-      sourceSelector: '[data-component="new-session"]',
-      destinationSelector: messageSelector(fixture.expected.targetMessageIDs.at(-1)!),
-      contentSelector,
-      navigate: async () => {
-        await sessionTab.click()
-        await expectSessionTitle(page, fixture.expected.targetTitle)
-      },
-    })
-    report(result)
-    expect(result.summary.blankSamples).toBe(0)
-    expect(result.summary.unknownSamples).toBe(0)
-  })
-
   benchmark("opens a child session without a blank frame", async ({ page, report }) => {
     await setup(page)
     const href = stressSessionHref(fixture.childID)

packages/app/e2e/regression/review-line-comment.spec.ts

@@ -45,17 +45,21 @@ test("opens the comment editor for a line number range", async ({ page }) => {
   await expect(review.locator('[data-slot="line-comment-editor-label"]')).toHaveText("Commenting on lines 1-3")
 })
 
-test("shows a comment button when a diff line is hovered", async ({ page }) => {
+test("shows a comment button when a line number is hovered", async ({ page }) => {
   const review = page.locator('[data-component="session-review"]')
-  const line = review.getByText("export const first = 1", { exact: true })
-  await expectAppVisible(line)
+  const lineNumber = review.locator('[data-column-number="1"]').last()
+  await expectAppVisible(lineNumber)
 
-  const comment = review.getByRole("button", { name: "Comment", exact: true, includeHidden: true })
-  await expect(comment).toHaveCount(1)
-  await line.dispatchEvent("pointermove", { pointerType: "mouse", bubbles: true, composed: true })
-  await expect(comment).toBeVisible()
-  await expect(comment).toHaveCSS("pointer-events", "auto")
-  await comment.dispatchEvent("click")
+  const comment = review.getByRole("button", { name: "Comment", exact: true })
+  await expect(async () => {
+    await lineNumber.hover()
+    await expect(lineNumber).toHaveAttribute("data-hovered", "")
+    await expect(comment).toHaveCount(1)
+    await expect(comment).toHaveCSS("pointer-events", "auto")
+    await comment.focus()
+    await expect(comment).toBeFocused()
+  }).toPass({ timeout: 10_000 })
+  await comment.press("Enter")
   await expect(review.getByRole("textbox")).toBeVisible()
   await expect(review.locator('[data-slot="line-comment-editor-label"]')).toHaveText("Commenting on line 1")
 })

packages/app/e2e/regression/review-terminal-stacked.spec.ts

@@ -18,7 +18,7 @@ const branchDiffs = [
   ),
 ]
 
-test("uses side placement by default and supports the terminal across the bottom", async ({ page }) => {
+test("keeps the review tree and terminal sized when both panels are open", async ({ page }) => {
   test.setTimeout(120_000)
   await page.setViewportSize({ width: 1400, height: 900 })
   await mockOpenCodeServer(page, {
@@ -27,7 +27,7 @@ test("uses side placement by default and supports the terminal across the bottom
       id: projectID,
       worktree: directory,
       vcs: "git",
-      name: "review-terminal-bottom",
+      name: "review-terminal-stacked",
       time: { created: 1700000000000, updated: 1700000000000 },
       sandboxes: [],
     },
@@ -45,7 +45,7 @@ test("uses side placement by default and supports the terminal across the bottom
     sessions: [
       {
         id: sessionID,
-        slug: "review-terminal-bottom",
+        slug: "review-terminal-stacked",
         projectID,
         directory,
         title,
@@ -138,22 +138,7 @@ test("uses side placement by default and supports the terminal across the bottom
   await page.keyboard.press("Control+Backquote")
   await expect(page.locator("#terminal-panel")).toBeVisible()
   await expectTree(page, 2_773, "action.yml")
-  await expectSideGeometry(page)
-
-  await page.evaluate(() => {
-    const settings = JSON.parse(localStorage.getItem("settings.v3") ?? "{}")
-    localStorage.setItem(
-      "settings.v3",
-      JSON.stringify({ ...settings, general: { ...settings.general, terminalPlacement: "bottom" } }),
-    )
-  })
-  await page.reload()
-  await expectSessionReady(page, { server, sessionID, title })
-  await expect(page.locator("#review-panel")).toBeVisible()
-  await page.keyboard.press("Control+Backquote")
-  await expect(page.locator("#terminal-panel")).toBeVisible()
-  await expectTree(page, 2_773, "action.yml")
-  await expectBottomGeometry(page)
+  await expectStackGeometry(page)
 })
 
 async function expectTree(page: Page, total: number, file: string) {
@@ -178,51 +163,23 @@ async function expectMountedTree(page: Page, total: number) {
   expect(state.rows).toBeLessThanOrEqual(60)
 }
 
-async function expectSideGeometry(page: Page) {
-  const geometry = await page.evaluate(() => {
-    const review = document.querySelector<HTMLElement>("#review-panel")!.getBoundingClientRect()
-    const terminal = document.querySelector<HTMLElement>("#terminal-panel")!.getBoundingClientRect()
-    return {
-      reviewLeft: review.left,
-      reviewRight: review.right,
-      terminalLeft: terminal.left,
-      terminalRight: terminal.right,
-      terminalTop: terminal.top,
-      reviewTop: review.top,
-    }
-  })
-  expect(Math.abs(geometry.terminalLeft - geometry.reviewLeft)).toBeLessThanOrEqual(1)
-  expect(Math.abs(geometry.terminalRight - geometry.reviewRight)).toBeLessThanOrEqual(1)
-  expect(geometry.terminalTop).toBeGreaterThan(geometry.reviewTop)
-}
-
-async function expectBottomGeometry(page: Page) {
+async function expectStackGeometry(page: Page) {
   const geometry = await page.evaluate(() => {
     const review = document.querySelector<HTMLElement>("#review-panel")!
     const terminal = document.querySelector<HTMLElement>("#terminal-panel")!
-    const terminalRect = terminal.getBoundingClientRect()
     const reviewParent = review.parentElement!.getBoundingClientRect()
     const terminalParent = terminal.parentElement!.getBoundingClientRect()
     const sidebar = review.querySelector<HTMLElement>('[data-slot="session-review-v2-sidebar"]')!
     return {
       review: review.getBoundingClientRect().height,
-      reviewBottom: review.getBoundingClientRect().bottom,
       reviewParent: reviewParent.height,
-      terminal: terminalRect.height,
-      terminalLeft: terminalRect.left,
-      terminalRight: terminalRect.right,
-      terminalTop: terminalRect.top,
+      terminal: terminal.getBoundingClientRect().height,
       terminalParent: terminalParent.height,
       sidebar: sidebar.getBoundingClientRect().width,
-      viewport: window.innerWidth,
     }
   })
   expect(Math.abs(geometry.review - geometry.reviewParent)).toBeLessThanOrEqual(1)
   expect(Math.abs(geometry.terminal - geometry.terminalParent)).toBeLessThanOrEqual(1)
-  expect(geometry.terminalTop - geometry.reviewBottom).toBeGreaterThanOrEqual(7)
-  expect(geometry.terminalTop - geometry.reviewBottom).toBeLessThanOrEqual(9)
-  expect(geometry.terminalLeft).toBeLessThanOrEqual(9)
-  expect(geometry.terminalRight).toBeGreaterThanOrEqual(geometry.viewport - 9)
   expect(geometry.sidebar).toBeGreaterThanOrEqual(240)
 }
 

packages/app/e2e/regression/server-dialog-focus.spec.ts

@@ -1,48 +0,0 @@
-import { expect, test, type Route } from "@playwright/test"
-
-const server = "http://127.0.0.1:4097"
-
-test("nested server dialog keeps focus inside the top layer", async ({ page }) => {
-  await page.addInitScript((server) => {
-    localStorage.setItem("opencode.global.dat:server", JSON.stringify({ list: [server] }))
-  }, server)
-  await page.route("**/*", async (route) => {
-    const url = new URL(route.request().url())
-    if (url.origin !== server) return route.fallback()
-    if (url.pathname === "/api/event") {
-      return route.fulfill({
-        status: 200,
-        contentType: "text/event-stream",
-        body: 'data: {"id":"evt_connected","type":"server.connected","data":{}}\n\n',
-      })
-    }
-    if (url.pathname === "/api/global/health" || url.pathname === "/api/health") {
-      return json(route, { healthy: true, version: "2.0.0" })
-    }
-    return json(route, {})
-  })
-
-  await page.goto("/")
-  await page.keyboard.press("Control+,")
-  const settings = page.locator(".settings-dialog")
-  await expect(settings).toBeVisible()
-  await settings.getByRole("tab", { name: "Servers" }).click()
-  await settings.getByRole("button", { name: "Add server" }).click()
-
-  const editor = page.getByRole("dialog", { name: "Add server" })
-  await expect(editor.getByPlaceholder("http://localhost:4096")).toBeFocused()
-  const username = editor.getByPlaceholder("username")
-  const password = editor.getByPlaceholder("password")
-  await username.click()
-  await expect(username).toBeFocused()
-  await username.fill("kit")
-  await expect(username).toHaveValue("kit")
-  await page.keyboard.press("Tab")
-  await expect(password).toBeFocused()
-  await password.fill("secret")
-  await expect(password).toHaveValue("secret")
-})
-
-function json(route: Route, body: unknown, status = 200) {
-  return route.fulfill({ status, contentType: "application/json", body: JSON.stringify(body) })
-}

packages/app/e2e/regression/session-timeline-collapse-state.spec.ts

@@ -99,7 +99,7 @@ test.describe("regression: session timeline local row state", () => {
     await wrapper.evaluate((element) => {
       ;(element as HTMLElement).dataset.regressionMarker = "before-stream"
     })
-    await wrapper.locator('[data-scope="apply-patch"] button').click()
+    await wrapper.locator('[data-slot="collapsible-trigger"]').first().click()
     await expectExpanded(wrapper, false)
 
     events.push(...textEvents())
@@ -139,7 +139,7 @@ test.describe("regression: session timeline local row state", () => {
     expect(siblingProbe).toEqual({
       fileMarker: "before",
       frameMarker: "before",
-      rowKey: `assistant-part:part:${assistantMessageID}:${editPartID}`,
+      rowKey: `assistant-part:${userMessageID}:part:${assistantMessageID}:${editPartID}`,
       rowMarker: "before",
       shadowRoots: 0,
       toolMarker: "before",
@@ -179,8 +179,8 @@ test.describe("regression: session timeline local row state", () => {
     await expectSessionTitle(page, title)
 
     const wrapper = page.locator(`[data-timeline-part-id="${editPartID}"]`).first()
-    const trigger = wrapper.locator('[data-component="sticky-accordion-header"]')
-    const diff = wrapper.locator('[data-component="apply-patch-file-diff"]').first()
+    const trigger = wrapper.locator('[data-slot="collapsible-trigger"]').first()
+    const diff = wrapper.locator('[data-component="edit-content"]').first()
     await expectAppVisible(diff)
     await expect.poll(() => wrapper.evaluate((element) => element.getBoundingClientRect().height)).toBeGreaterThan(500)
     const samples = await wrapper.evaluate(async (element) => {
@@ -190,8 +190,8 @@ test.describe("regression: session timeline local row state", () => {
       for (const offset of [0, 120, 240, 360, 480]) {
         root.scrollBy(0, offset - (result.at(-1)?.offset ?? 0))
         await new Promise(requestAnimationFrame)
-        const trigger = element.querySelector<HTMLElement>('[data-component="sticky-accordion-header"]')!
-        const diff = element.querySelector<HTMLElement>('[data-component="apply-patch-file-diff"]')!
+        const trigger = element.querySelector<HTMLElement>('[data-slot="collapsible-trigger"]')!
+        const diff = element.querySelector<HTMLElement>('[data-component="edit-content"]')!
         result.push({
           offset,
           trigger: trigger.getBoundingClientRect().y,
@@ -202,7 +202,7 @@ test.describe("regression: session timeline local row state", () => {
       return result
     })
 
-    expect(samples[0]!.trigger).toBeGreaterThanOrEqual(samples[0]!.diff)
+    expect(samples[0]!.trigger).toBeLessThan(samples[0]!.diff)
     expect(samples.every((sample) => Math.abs(sample.trigger - samples[0]!.trigger) <= 1)).toBe(true)
     expect(samples.every((sample) => sample.trigger < sample.bottom)).toBe(true)
   })
@@ -234,9 +234,7 @@ async function readToolState(page: Page) {
     .evaluate(
       (element, textPartID) => ({
         expanded: (() => {
-          const trigger =
-            element.querySelector('[data-scope="apply-patch"] button') ??
-            element.querySelector('[data-slot="collapsible-trigger"]')
+          const trigger = element.querySelector('[data-slot="collapsible-trigger"]')
           const aria = trigger?.getAttribute("aria-expanded")
           if (aria === "true") return true
           if (aria === "false") return false
@@ -411,9 +409,7 @@ function eventValue<Type extends OpenCodeEvent["type"]>(
 }
 
 function readExpanded(element: Element) {
-  const trigger =
-    element.querySelector('[data-scope="apply-patch"] button') ??
-    element.querySelector('[data-slot="collapsible-trigger"]')
+  const trigger = element.querySelector('[data-slot="collapsible-trigger"]')
   const aria = trigger?.getAttribute("aria-expanded")
   if (aria === "true") return true
   if (aria === "false") return false

packages/app/e2e/regression/session-timeline-file-projection.spec.ts

@@ -1,12 +1,5 @@
 import { expect, test } from "@playwright/test"
-import { createTwoFilesPatch } from "diff"
-import {
-  assistantMessage,
-  setupTimeline,
-  toolPart,
-  userMessage,
-  userText,
-} from "../performance/timeline-stability/fixture"
+import { assistantMessage, setupTimeline, toolPart, userMessage } from "../performance/timeline-stability/fixture"
 
 test("renders completed write content", async ({ page }) => {
   const id = "prt_file_projection_write"
@@ -54,144 +47,5 @@ test("renders a completed single-file patch", async ({ page }) => {
     settings: { editToolPartsExpanded: true },
   })
 
-  const wrapper = page.locator(`[data-timeline-part-id="${id}"]`)
-  const file = wrapper.locator('[data-scope="apply-patch"]')
-  const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
-  await expect(file.getByRole("button")).toHaveAttribute("aria-expanded", "false")
-  await expect(wrapper.locator('[data-component="apply-patch-file-diff"]')).toHaveCount(0)
-  await file.getByRole("button").click()
-  await expect(wrapper.locator('[data-component="apply-patch-file-diff"]')).toBeVisible()
-  await expect
-    .poll(() => scroller.evaluate((element) => element.scrollHeight - element.clientHeight - element.scrollTop))
-    .toBeLessThanOrEqual(1)
-
-  await file.getByRole("button").click()
-  await expect(wrapper.locator('[data-component="apply-patch-file-diff"]')).toHaveCount(0)
-  await expect
-    .poll(() => scroller.evaluate((element) => element.scrollHeight - element.clientHeight - element.scrollTop))
-    .toBeLessThanOrEqual(1)
-
-  await file.getByRole("button").click()
-  await expect(wrapper.locator('[data-component="apply-patch-file-diff"]')).toBeVisible()
-  await expect
-    .poll(() => scroller.evaluate((element) => element.scrollHeight - element.clientHeight - element.scrollTop))
-    .toBeLessThanOrEqual(1)
-})
-
-test("keeps an expanded file diff header at the same viewport position", async ({ page }) => {
-  const id = "prt_file_projection_anchored_patch"
-  const before = Array.from({ length: 80 }, (_, index) => `export const value${index} = ${index}\n`).join("")
-  const after = before.replaceAll(" = ", " = compute(").replaceAll("\n", ")\n")
-  await setupTimeline(page, {
-    messages: [
-      userMessage([userText("Preceding context ".repeat(120))]),
-      assistantMessage([
-        toolPart(
-          id,
-          "patch",
-          "completed",
-          { patchText: "Update src/anchored.ts" },
-          {
-            metadata: {
-              files: [
-                {
-                  file: "src/anchored.ts",
-                  status: "modified",
-                  patch: createTwoFilesPatch("a/src/anchored.ts", "b/src/anchored.ts", before, after),
-                  additions: 80,
-                  deletions: 80,
-                },
-              ],
-            },
-          },
-        ),
-      ]),
-    ],
-    viewport: { width: 1200, height: 600 },
-  })
-
-  const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
-  const wrapper = page.locator(`[data-timeline-part-id="${id}"]`)
-  const row = page.locator("[data-timeline-key]", { has: wrapper })
-  const trigger = wrapper.getByRole("button")
-  await expect
-    .poll(() =>
-      row.evaluate((element) => {
-        const measured = element.querySelector<HTMLElement>("[data-index]")
-        return measured
-          ? Math.abs(element.getBoundingClientRect().height - measured.getBoundingClientRect().height)
-          : Number.POSITIVE_INFINITY
-      }),
-    )
-    .toBeLessThanOrEqual(1)
-  await expect
-    .poll(() => scroller.evaluate((element) => element.scrollHeight - element.clientHeight))
-    .toBeGreaterThan(1)
-  await scroller.evaluate((element) => {
-    element.scrollTop = element.scrollHeight - element.clientHeight - 0.25
-  })
-  await expect(trigger).toBeInViewport()
-  await expect
-    .poll(() => scroller.evaluate((element) => element.scrollHeight - element.clientHeight - element.scrollTop))
-    .toBeLessThanOrEqual(0.5)
-  const bottomScrollTop = await scroller.evaluate((element) => element.scrollTop)
-  await scroller.hover()
-  await page.mouse.wheel(0, -20)
-  await expect
-    .poll(() => scroller.evaluate((element, bottom) => bottom - element.scrollTop, bottomScrollTop))
-    .toBeGreaterThan(0)
-  const y = await trigger.evaluate((element) => element.getBoundingClientRect().y)
-  const collapsedHeight = await row.evaluate((element) => element.getBoundingClientRect().height)
-  await trigger.click()
-  await expect(wrapper.locator('[data-component="apply-patch-file-diff"]')).toBeVisible()
-  await expect
-    .poll(() =>
-      row.evaluate((element, collapsed) => {
-        const measured = element.querySelector<HTMLElement>("[data-index]")
-        const allocatedHeight = element.getBoundingClientRect().height
-        return {
-          grew: allocatedHeight > collapsed + 1,
-          measured: measured ? Math.abs(allocatedHeight - measured.getBoundingClientRect().height) <= 1 : false,
-        }
-      }, collapsedHeight),
-    )
-    .toEqual({ grew: true, measured: true })
-  await expect
-    .poll(() => trigger.evaluate((element, initialY) => Math.abs(element.getBoundingClientRect().y - initialY), y))
-    .toBeLessThanOrEqual(5)
-
-  const scrollTop = await scroller.evaluate((element) => element.scrollTop)
-  await scroller.hover()
-  await page.mouse.wheel(0, 200)
-  await expect
-    .poll(() => scroller.evaluate((element, initial) => element.scrollTop - initial, scrollTop))
-    .toBeGreaterThan(50)
-  const scrolled = await scroller.evaluate((element, initial) => element.scrollTop - initial, scrollTop)
-  expect(scrolled).toBeLessThan(400)
-
-  const expandedY = await trigger.evaluate((element) => element.getBoundingClientRect().y)
-  await trigger.click()
-  await expect(wrapper.locator('[data-component="apply-patch-file-diff"]')).toHaveCount(0)
-  await expect
-    .poll(() =>
-      scroller.evaluate((element) => Math.abs(element.scrollHeight - element.clientHeight - element.scrollTop)),
-    )
-    .toBeLessThanOrEqual(1)
-  await expect.poll(() => trigger.evaluate((element) => element.getBoundingClientRect().y)).toBeGreaterThan(expandedY)
-
-  await trigger.click()
-  await expect(wrapper.locator('[data-component="apply-patch-file-diff"]')).toBeVisible()
-  await expect
-    .poll(() =>
-      row.evaluate((element) => {
-        const measured = element.querySelector<HTMLElement>("[data-index]")
-        return measured
-          ? Math.abs(element.getBoundingClientRect().height - measured.getBoundingClientRect().height)
-          : Number.POSITIVE_INFINITY
-      }),
-    )
-    .toBeLessThanOrEqual(1)
-  await expect
-    .poll(() => scroller.evaluate((element) => element.scrollHeight - element.clientHeight - element.scrollTop))
-    .toBeLessThanOrEqual(1)
+  await expect(page.locator(`[data-timeline-part-id="${id}"] [data-component="apply-patch-file-diff"]`)).toBeVisible()
 })

packages/app/e2e/regression/session-timeline-file-state.spec.ts

@@ -2,7 +2,7 @@ import { expect, test } from "@playwright/test"
 import { assistantMessage, setupTimeline, toolPart, userMessage } from "../performance/timeline-stability/fixture"
 import { createTwoFilesPatch } from "diff"
 
-test("keeps patch file disclosures independent", async ({ page }) => {
+test("preserves nested patch file state through outer collapse and reopen", async ({ page }) => {
   const patchID = "prt_nested_patch"
   const files = [patchFile("src/a.ts", "modified"), patchFile("src/b.ts", "added"), patchFile("src/old.ts", "deleted")]
   await setupTimeline(page, {
@@ -21,17 +21,15 @@ test("keeps patch file disclosures independent", async ({ page }) => {
     settings: { editToolPartsExpanded: true },
   })
   const wrapper = page.locator(`[data-timeline-part-id="${patchID}"]`)
-  const modified = wrapper.locator('[data-scope="apply-patch"] [data-type="update"]')
+  const outer = wrapper.locator('[data-slot="collapsible-trigger"]').first()
   const deleted = wrapper.locator('[data-scope="apply-patch"] [data-type="delete"]')
-  await expect(wrapper.locator('[data-scope="apply-patch"] [aria-expanded="false"]')).toHaveCount(3)
   await deleted.getByRole("button").click()
   await expect(deleted.getByRole("button")).toHaveAttribute("aria-expanded", "true")
-  await expect(modified.getByRole("button")).toHaveAttribute("aria-expanded", "false")
-  await modified.getByRole("button").click()
-  await expect(modified.getByRole("button")).toHaveAttribute("aria-expanded", "true")
-  await deleted.getByRole("button").click()
-  await expect(deleted.getByRole("button")).toHaveAttribute("aria-expanded", "false")
-  await expect(modified.getByRole("button")).toHaveAttribute("aria-expanded", "true")
+  await outer.click()
+  await expect(outer).toHaveAttribute("aria-expanded", "false")
+  await outer.click()
+  await expect(outer).toHaveAttribute("aria-expanded", "true")
+  await expect(deleted.getByRole("button")).toHaveAttribute("aria-expanded", "true")
 })
 
 function patchFile(file: string, status: "added" | "modified" | "deleted") {

packages/app/e2e/regression/session-timeline-history-root.spec.ts

@@ -17,7 +17,7 @@ import { mockOpenCodeServer } from "../utils/mock-server"
 import { installSseTransport } from "../utils/sse-transport"
 import { expectSessionTitle } from "../utils/waits"
 
-const messagePageSize = 20
+const messagePageSize = 200
 const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 const messages = Array.from({ length: messagePageSize / 2 + 1 }, (_, index) => {
   const id = `msg_${String(index + 1001).padStart(4, "0")}_history_root_user`

packages/app/e2e/regression/session-timeline-lifecycle-state.spec.ts

@@ -1,6 +1,5 @@
 import { expect, test } from "@playwright/test"
 import {
-  assistantID,
   assistantMessage,
   completedAssistantInfo,
   messageUpdated,
@@ -9,13 +8,9 @@ import {
   renderedPartID,
   setupTimeline,
   shell,
-  sessionID,
   status,
   stepStarted,
   textPart,
-  toolCalled,
-  toolInputEnded,
-  toolInputStarted,
   userMessage,
 } from "../performance/timeline-stability/fixture"
 
@@ -39,56 +34,7 @@ for (const expanded of [false, true]) {
   })
 }
 
-test("transitions a streaming shell from writing through command execution", async ({ page }) => {
-  const id = "prt_shell_streaming_input"
-  const command = "printf ready"
-  const timeline = await setupTimeline(page, {
-    messages: [userMessage(), assistantMessage([], { completed: false })],
-  })
-  await timeline.send(toolInputStarted({ sessionID, assistantMessageID: assistantID, id, name: "shell" }))
-
-  const tool = page.locator(`[data-timeline-part-id="${id}"]`)
-  const title = tool.locator('[data-slot="basic-tool-tool-title"]')
-  const titleShimmer = title.locator('[data-component="text-shimmer"]')
-  const subtitle = tool.locator('[data-slot="basic-tool-tool-subtitle"]')
-  await expect(titleShimmer).toHaveAttribute("aria-label", "Shell")
-  await expect(titleShimmer).toHaveAttribute("data-active", "true")
-  await expect(subtitle).toHaveText("Writing command...")
-  await expect(subtitle.locator('[data-component="text-shimmer"]')).toHaveCount(0)
-  await expect(tool.locator('[data-component="shell-submessage"]')).toHaveCount(0)
-  await expect(tool.locator('[data-slot="collapsible-trigger"]')).toHaveCSS("height", "28px")
-  await expect(tool.locator('[data-component="tool-trigger"]')).toHaveCSS("gap", "6px")
-  await expect(title).toHaveCSS("font-size", "13px")
-  await expect(title).toHaveCSS("font-family", "Inter, sans-serif")
-  await expect(title).toHaveCSS("font-weight", "530")
-  await expect(title).toHaveCSS("line-height", "16px")
-  await expect(title).toHaveCSS("color", "rgb(22, 22, 22)")
-  await expect(subtitle).toHaveCSS("font-size", "13px")
-  await expect(subtitle).toHaveCSS("font-family", "Inter, sans-serif")
-  await expect(subtitle).toHaveCSS("font-weight", "440")
-  await expect(subtitle).toHaveCSS("line-height", "16px")
-  await expect(subtitle).toHaveCSS("color", "rgb(92, 92, 92)")
-
-  const input = JSON.stringify({ command })
-  await timeline.send(toolInputEnded({ sessionID, assistantMessageID: assistantID, id, text: input }))
-  await expect(titleShimmer).toHaveAttribute("data-active", "true")
-  await expect(subtitle).toHaveText(command)
-  await expect(tool).not.toContainText("Writing command...")
-
-  await timeline.send(
-    toolCalled({
-      sessionID,
-      assistantMessageID: assistantID,
-      id,
-      input: { command },
-      executed: true,
-    }),
-  )
-  await expect(titleShimmer).toHaveAttribute("data-active", "true")
-  await expect(subtitle).toHaveText(command)
-})
-
-test("shimmers and expands a running shell command", async ({ page }) => {
+test("shows and expands a running shell command without shimmering it", async ({ page }) => {
   const id = "prt_shell_running_command"
   const command = "sleep 10 && echo done"
   await setupTimeline(page, {
@@ -98,10 +44,8 @@ test("shimmers and expands a running shell command", async ({ page }) => {
 
   const tool = page.locator(`[data-timeline-part-id="${id}"]`)
   await expect(tool.locator('[data-component="text-shimmer"]')).toHaveAttribute("data-active", "true")
-  await expect(tool).not.toContainText("Writing command...")
   await expect(tool.locator('[data-component="shell-submessage"]')).toHaveText(command)
   await expect(tool.locator('[data-component="shell-submessage"] [data-component="text-shimmer"]')).toHaveCount(0)
-  await expect(tool.locator('[data-slot="collapsible-trigger"]')).toHaveCSS("height", "28px")
   await tool.locator('[data-slot="collapsible-trigger"]').click()
   await expect(tool.locator('[data-slot="collapsible-trigger"]')).toHaveAttribute("aria-expanded", "true")
   await expect(tool.locator('[data-slot="bash-pre"]')).toContainText("still running")

packages/app/e2e/regression/session-timeline-notices.spec.ts

@@ -1,15 +1,6 @@
 import { expect, test } from "@playwright/test"
 import type { SessionMessageAssistant, SessionMessageInfo } from "@opencode-ai/client/promise"
-import {
-  compactionDelta,
-  compactionEnded,
-  compactionFailed,
-  compactionStarted,
-  event,
-  session,
-  sessionID,
-  setupTimeline,
-} from "../performance/timeline-stability/fixture"
+import { event, session, sessionID, setupTimeline } from "../performance/timeline-stability/fixture"
 
 const user = { id: "msg_user", type: "user", text: "Run it", time: { created: 1 } } satisfies SessionMessageInfo
 
@@ -82,160 +73,6 @@ test("renders current protocol notices in CLI order", async ({ page }) => {
   expect(ownerWarnings).toEqual([])
 })
 
-test("renders a compaction summary while it streams and after completion", async ({ page }) => {
-  const timeline = await setupTimeline(page, { sessionMessages: [user, assistant(true)] })
-
-  await timeline.send(
-    compactionStarted({
-      sessionID,
-      reason: "manual",
-      recent: "",
-    }),
-  )
-
-  const compaction = page.locator('[data-component="session-compaction-message"]')
-  await expect(compaction.getByText("Session compacted", { exact: true })).toBeVisible()
-
-  await timeline.send(
-    compactionDelta({
-      sessionID,
-      text: "## Checkpoint\n\nStreamed implementation details.",
-    }),
-  )
-  await expect(compaction.getByRole("heading", { name: "Checkpoint" })).toBeVisible()
-  await expect(compaction).toContainText("Streamed implementation details.")
-
-  await timeline.send(
-    compactionEnded({
-      sessionID,
-      reason: "manual",
-      text: "## Checkpoint\n\nFinal implementation details.",
-      recent: "",
-    }),
-  )
-  await expect(compaction).toContainText("Final implementation details.")
-  await expect(compaction).not.toContainText("Streamed implementation details.")
-})
-
-test("updates running compactions to failed and cancelled boundaries", async ({ page }) => {
-  const timeline = await setupTimeline(page, { sessionMessages: [user, assistant(true)] })
-
-  await timeline.send(compactionStarted({ sessionID, reason: "auto", recent: "" }))
-  await timeline.send(compactionDelta({ sessionID, text: "Partial summary that should be discarded." }))
-  await timeline.send(
-    compactionFailed({
-      sessionID,
-      reason: "auto",
-      error: {
-        type: "compaction.failed",
-        message: 'Error: {"error":{"type":"ProviderError","message":"The provider rejected the summary."}}',
-      },
-    }),
-  )
-
-  const compactions = page.locator('[data-component="session-compaction-message"]')
-  const failed = compactions.filter({ hasText: "The provider rejected the summary." })
-  await expect(failed.getByText("Session compacted", { exact: true })).toBeVisible()
-  await expect(failed.getByText("ProviderError: The provider rejected the summary.", { exact: true })).toBeVisible()
-  await expect(failed).not.toContainText("Partial summary that should be discarded.")
-
-  await timeline.send(compactionStarted({ sessionID, reason: "manual", recent: "" }))
-  await timeline.send(
-    compactionFailed({
-      sessionID,
-      reason: "manual",
-      error: { type: "aborted", message: "Cancellation detail should stay hidden." },
-    }),
-  )
-
-  await expect(compactions).toHaveCount(2)
-  const cancelled = compactions.filter({ hasNotText: "The provider rejected the summary." })
-  await expect(cancelled.getByText("Session compacted", { exact: true })).toBeVisible()
-  await expect(cancelled).not.toContainText("Cancellation detail should stay hidden.")
-})
-
-test("shows a delegating row while subagent input streams", async ({ page }) => {
-  await setupTimeline(page, {
-    sessionMessages: [
-      user,
-      {
-        ...assistant(false),
-        content: [
-          {
-            type: "tool",
-            id: "call_subagent",
-            name: "subagent",
-            state: { status: "streaming", input: "" },
-            time: { created: 2 },
-          },
-        ],
-      },
-    ],
-  })
-
-  const delegating = page.locator('[data-component="task-tool-delegating"]')
-  await expect(delegating).toBeVisible()
-  const shimmer = delegating.locator('[data-component="text-shimmer"]')
-  await expect(shimmer).toHaveAttribute("aria-label", "Delegating agent...")
-  await expect(shimmer).toHaveCSS("line-height", "16px")
-  const icon = delegating.locator('[data-slot="icon-svg"]')
-  await expect(icon.locator('use[href="#opencode-v2-icon-subagent"]')).toBeVisible()
-  await expect(icon).toHaveCSS("color", "rgb(174, 174, 174)")
-  await expect(page.locator('[data-component="task-tool-card"]')).toHaveCount(0)
-  await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(0)
-})
-
-test("renders the moved location notice in its compact timeline style", async ({ page }) => {
-  const directory = `/Users/usrnk1/Developer/opencode/${"nested-directory/".repeat(24)}session`
-  await page.setViewportSize({ width: 480, height: 720 })
-  await setupTimeline(page, {
-    sessionMessages: [
-      user,
-      {
-        id: "msg_location",
-        type: "location-switched",
-        location: { directory },
-        time: { created: 2 },
-      },
-    ],
-  })
-
-  const notice = page.locator('[data-slot="session-timeline-notice"][data-type="location-switched"]')
-  const label = notice.locator('[data-slot="session-timeline-notice-label"]')
-  const value = notice.locator('[data-slot="session-timeline-notice-value"]')
-  const tooltipTrigger = notice.locator('[data-component="tooltip-v2-trigger"]')
-
-  await expect(label).toHaveText("Moved to")
-  await expect(value).toHaveText(directory)
-  await expect(notice).not.toContainText("·")
-  await expect(notice.locator("svg")).toHaveCount(0)
-  await expect(notice).toHaveCSS("height", "28px")
-  await expect(notice).toHaveCSS("gap", "8px")
-  await expect(notice).toHaveCSS("padding-top", "4px")
-  await expect(notice).toHaveCSS("padding-bottom", "4px")
-  await expect(label).toHaveCSS("font-size", "13px")
-  await expect(label).toHaveCSS("font-weight", "530")
-  await expect(label).toHaveCSS("line-height", "16px")
-  await expect(label).toHaveCSS("color", "rgb(128, 128, 128)")
-  await expect(value).toHaveCSS("font-size", "13px")
-  await expect(value).toHaveCSS("font-weight", "440")
-  await expect(value).toHaveCSS("line-height", "16px")
-  await expect(value).toHaveCSS("color", "rgb(128, 128, 128)")
-  await expect(value).toHaveCSS("text-overflow", "ellipsis")
-  await expect(value).toHaveCSS("white-space", "nowrap")
-  await expect(value).toHaveAttribute("dir", "ltr")
-  await expect.poll(() => value.evaluate((element) => element.scrollWidth > element.clientWidth)).toBe(true)
-
-  const tooltip = page.getByText("Session working directory changed", { exact: true })
-  await label.hover()
-  await expect(tooltip).toBeVisible()
-  await page.mouse.move(0, 0)
-  await expect(tooltip).toBeHidden()
-  await tooltipTrigger.focus()
-  await expect(tooltipTrigger).toBeFocused()
-  await expect(tooltip).toBeVisible()
-})
-
 test("moves blocking work to the background with Ctrl+B", async ({ page }) => {
   await setupTimeline(page, { sessionMessages: [user, assistant(false, true)] })
   const card = page.locator('[data-component="task-tool-card"]')
@@ -244,24 +81,7 @@ test("moves blocking work to the background with Ctrl+B", async ({ page }) => {
   await expect(card).not.toContainText("(background)")
   await expect(page.getByText("Called `subagent`", { exact: false })).toHaveCount(0)
   await expect(page.locator('[data-component="background-tool-control"]')).toHaveCount(0)
-  const hint = page.locator('[data-component="session-background-hint"]')
-  const hintPrefix = hint.locator('[data-slot="session-background-hint-prefix"]')
-  await expect(hint).toBeVisible()
-  await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(0)
-  await expect
-    .poll(async () => {
-      const [cardBox, hintBox, prefixBox] = await Promise.all([
-        card.boundingBox(),
-        hint.boundingBox(),
-        hintPrefix.boundingBox(),
-      ])
-      if (!cardBox || !hintBox || !prefixBox) return undefined
-      return {
-        aligned: Math.abs(cardBox.x - prefixBox.x) < 2,
-        ordered: cardBox.y < hintBox.y,
-      }
-    })
-    .toEqual({ aligned: true, ordered: true })
+  await expect(page.locator('[data-action="session-background-toggle"]')).toContainText("Move 1 subagent to background")
 
   const request = page.waitForRequest(
     (request) =>
@@ -284,10 +104,10 @@ test("navigates from a running subagent card and hides background controls in th
     sessionStatus: { [sessionID]: { type: "busy" }, [childID]: { type: "busy" } },
   })
 
-  await expect(page.getByText(/move running work to the background/i)).toBeVisible()
+  await expect(page.locator('[data-action="session-background-toggle"]')).toContainText("Move 1 subagent to background")
   await page.locator('[data-component="task-tool-card"]').click()
   await expect(page).toHaveURL(new RegExp(`/session/${childID}$`))
-  await expect(page.getByText(/move running work to the background/i)).toHaveCount(0)
+  await expect(page.locator('[data-component="session-background-dock"]')).toHaveCount(0)
 })
 
 test("shows a badge for active background work", async ({ page }) => {
@@ -298,14 +118,7 @@ test("shows a badge for active background work", async ({ page }) => {
     sessionStatus: { [childID]: { type: "busy" } },
   })
 
-  await page.getByRole("button", { name: "Session details" }).click()
-  const summary = page.getByRole("button", { name: "1 item running in background" })
-  await expect(summary).toContainText("1")
-  await expect(summary).toContainText("Running work in background")
-  await summary.click()
-  await expect(
-    page.locator('[data-component="session-background-list"]').getByText("Agent", { exact: true }),
-  ).toBeVisible()
+  await expect(page.locator('[data-component="session-background-dock"]')).toContainText("1 subagent in background")
 })
 
 test("separates blocking and already-backgrounded work into two rows", async ({ page }) => {
@@ -380,15 +193,10 @@ test("separates blocking and already-backgrounded work into two rows", async ({
     },
   })
 
+  const dock = page.locator('[data-component="session-background-dock"]')
   const backgroundCard = page.locator('[data-timeline-part-id="call_backgrounded"]')
-  await expect(page.getByText(/move running work to the background/i)).toBeVisible()
-  await page.getByRole("button", { name: "Session details" }).click()
-  const summary = page.getByRole("button", { name: "2 items running in background" })
-  await expect(summary).toContainText("2")
-  await summary.click()
-  const list = page.locator('[data-component="session-background-list"]')
-  await expect(list).toContainText("Background task")
-  await expect(list).toContainText("sleep 120")
+  await expect(dock).toContainText("Move 1 subagent to background")
+  await expect(dock.getByText("Running 1 shell and 1 subagent in background", { exact: true })).toBeVisible()
   await expect(backgroundCard).toContainText("Background task (background)")
   await expect(backgroundCard.locator('[data-component="session-progress-indicator-v2"]')).toBeVisible()
   await expect(

packages/app/e2e/regression/session-timeline-projection.spec.ts

@@ -1,7 +1,6 @@
 import { expect, test } from "@playwright/test"
 import {
   assistantMessage,
-  partUpdated,
   setupTimeline,
   status,
   toolPart,
@@ -70,126 +69,9 @@ test.describe("session timeline projection", () => {
     ]) {
       await expect(page.locator(`[data-timeline-part-id="${id}"]`).first(), id).toBeVisible()
     }
-    const patch = page.locator('[data-timeline-part-id="prt_patch"]')
-    await expect(patch.getByText("1 file", { exact: true })).toBeVisible()
-    await expect(patch.getByRole("button", { name: "Patch 1 file", exact: true })).toHaveCount(0)
-    await expect(patch.getByRole("button")).toHaveCount(1)
-    await expect(patch.locator('[data-scope="apply-patch"] button[aria-expanded="false"]')).toHaveCount(1)
-    await expect(patch.locator('[data-slot="message-part-title-filename"]')).toHaveCount(0)
-    await expect(patch.locator('[data-slot="message-part-actions"]')).toHaveCount(0)
-    const edit = page.locator('[data-timeline-part-id="prt_edit"]')
-    await expect(edit.locator('[data-component="apply-patch-tool"]')).toBeVisible()
-    await expect(edit.locator('[data-slot="basic-tool-tool-title"]')).toContainText("Edit")
     await expect(page.locator('[data-timeline-part-id="prt_todo"]')).toHaveCount(0)
   })
 
-  test("combines adjacent patch calls and repeated files into one group", async ({ page }) => {
-    const first = "prt_patch_first"
-    const second = "prt_patch_second"
-    const timeline = await setupTimeline(page, {
-      messages: [
-        userMessage(),
-        assistantMessage([
-          toolPart(
-            first,
-            "patch",
-            "completed",
-            { patchText: "Update src/first.ts" },
-            {
-              metadata: { files: [patchFile("src/first.ts", "modified")] },
-            },
-          ),
-        ]),
-      ],
-    })
-
-    const initial = page.locator(`[data-timeline-part-id="${first}"]`)
-    const initialFile = initial.locator('[data-scope="apply-patch"] [data-type="update"]')
-    await expect(initialFile).toBeVisible()
-    await initialFile.getByRole("button").click()
-    await expect(initialFile.getByRole("button")).toHaveAttribute("aria-expanded", "true")
-    await initial.evaluate((element) => {
-      const row = element.closest<HTMLElement>("[data-timeline-key]")
-      if (row) row.dataset.patchRow = "stable"
-    })
-
-    await timeline.send(
-      partUpdated(toolPart(second, "patch", "running", { patchText: "Update more files" }, { metadata: {} })),
-    )
-
-    const group = page.locator(`[data-timeline-part-ids="${first},${second}"]`)
-    await expect(group.locator("xpath=ancestor::*[@data-timeline-key]")).toHaveAttribute("data-patch-row", "stable")
-    await expect(group.locator('[data-slot="apply-patch-filename"]')).toHaveText(["first.ts"])
-    await expect(group.locator('[data-scope="apply-patch"] [data-type="update"] button')).toHaveAttribute(
-      "aria-expanded",
-      "true",
-    )
-
-    await timeline.send(
-      partUpdated(
-        toolPart(
-          second,
-          "patch",
-          "completed",
-          { patchText: "Update more files" },
-          {
-            metadata: {
-              files: [patchFile("src/first.ts", "modified"), patchFile("src/second.ts", "added")],
-            },
-          },
-        ),
-      ),
-    )
-
-    await expect(group.locator('[data-slot="apply-patch-filename"]')).toHaveText(["first.ts", "second.ts"])
-    await expect(group.locator('[data-scope="apply-patch"] [data-type="update"] button')).toHaveAttribute(
-      "aria-expanded",
-      "true",
-    )
-    await expect(group.locator('[data-scope="apply-patch"] [data-type="add"] button')).toHaveAttribute(
-      "aria-expanded",
-      "false",
-    )
-    await expect(page.locator(`[data-timeline-part-id="${first}"], [data-timeline-part-id="${second}"]`)).toHaveCount(0)
-  })
-
-  test("combines adjacent edit calls and repeated files into one group", async ({ page }) => {
-    const first = "prt_edit_first"
-    const second = "prt_edit_second"
-    await setupTimeline(page, {
-      messages: [
-        userMessage(),
-        assistantMessage([
-          toolPart(
-            first,
-            "edit",
-            "completed",
-            { path: "src/first.ts", oldString: "one", newString: "two" },
-            {
-              metadata: { files: [patchFile("src/first.ts", "modified")] },
-            },
-          ),
-          toolPart(
-            second,
-            "edit",
-            "completed",
-            { path: "src/first.ts", oldString: "two", newString: "three" },
-            {
-              metadata: { files: [patchFile("src/first.ts", "modified")] },
-            },
-          ),
-        ]),
-      ],
-      settings: { editToolPartsExpanded: true },
-    })
-
-    const group = page.locator(`[data-timeline-part-ids="${first},${second}"]`)
-    await expect(group.locator('[data-slot="basic-tool-tool-title"]')).toContainText("Edit")
-    await expect(group.getByText("1 file", { exact: true })).toBeVisible()
-    await expect(group.locator('[data-slot="apply-patch-filename"]')).toHaveText(["first.ts"])
-    await expect(group.locator('[data-scope="apply-patch"] button')).toHaveAttribute("aria-expanded", "true")
-  })
-
   test("projects gaps, dividers, assistant parts, and errors together", async ({ page }) => {
     const firstUser = userMessage(
       [
@@ -314,7 +196,11 @@ function patchPart(id: string) {
     { patchText: "Update the projected files" },
     {
       metadata: {
-        files: [patchFile("src/a.ts", "modified")],
+        files: [
+          patchFile("src/a.ts", "modified"),
+          patchFile("src/b.ts", "added"),
+          patchFile("src/old.ts", "deleted"),
+        ],
       },
     },
   )

packages/app/e2e/regression/session-timeline-tool-projection.spec.ts

@@ -98,9 +98,9 @@ test("labels completed searches with result counts", async ({ page }) => {
 
   const group = page.locator(`[data-timeline-part-ids="${glob},${grep}"]`)
   await group.locator('[data-slot="collapsible-trigger"]').click()
-  const rows = group.locator('[data-component="context-tool-group-list"] [data-component="tool-trigger"]')
-  await expect(rows.filter({ hasText: "Glob" })).toContainText("(1 match)")
-  await expect(rows.filter({ hasText: "Grep" })).toContainText("(12 matches)")
+  const rows = group.locator('[data-component="tool-trigger"]')
+  await expect(rows.nth(0)).toContainText("(1 match)")
+  await expect(rows.nth(1)).toContainText("(12 matches)")
 })
 
 test("labels read tools from their path input", async ({ page }) => {
@@ -111,11 +111,7 @@ test("labels read tools from their path input", async ({ page }) => {
 
   const group = page.locator(`[data-timeline-part-ids="${id}"]`)
   await group.locator('[data-slot="collapsible-trigger"]').click()
-  await expect(
-    group
-      .locator('[data-component="context-tool-group-list"] [data-component="tool-trigger"]')
-      .filter({ hasText: "Read" }),
-  ).toContainText("a.ts")
+  await expect(group.locator('[data-slot="basic-tool-tool-subtitle"]')).toHaveText("a.ts")
 })
 
 test("labels skill tools from IDs and result metadata", async ({ page }) => {
@@ -125,23 +121,25 @@ test("labels skill tools from IDs and result metadata", async ({ page }) => {
     messages: [
       userMessage(),
       assistantMessage([
-        toolPart(pending, "skill", "running", { id: "frontend-design" }),
+        toolPart(pending, "skill", "running", { id: "sample-skill" }),
         toolPart(completed, "skill", "completed", { id: "opencode" }, { metadata: { name: "OpenCode" } }),
       ]),
     ],
   })
 
-  for (const [id, name] of [
-    [pending, "frontend-design"],
-    [completed, "OpenCode"],
-  ] as const) {
+  await expect(page.locator(`[data-timeline-part-id="${pending}"] [data-component="text-shimmer"]`)).toHaveAttribute(
+    "aria-label",
+    "sample-skill",
+  )
+  await expect(page.locator(`[data-timeline-part-id="${completed}"] [data-component="text-shimmer"]`)).toHaveAttribute(
+    "aria-label",
+    "OpenCode",
+  )
+  for (const id of [pending, completed]) {
     const skill = page.locator(`[data-timeline-part-id="${id}"]`)
-    const loaded = skill.locator('[data-component="tool-loaded-item"]')
-    await expect(loaded).toHaveAttribute("aria-label", `Loaded ${name} skill`)
-    await expect(loaded).toHaveCSS("line-height", "16px")
-    await expect(loaded.locator('[data-slot="tool-loaded-label"]')).toHaveText("Loaded")
-    await expect(loaded.locator('[data-slot="tool-loaded-kind"]')).toHaveText("skill")
-    await expect(loaded.locator('[data-component="text-shimmer"]')).toHaveAttribute("aria-label", name)
+    await expect(skill.locator('[data-slot="skill-tool-label"]')).toHaveText("Skill")
+    await expect(skill.locator('[data-slot="skill-tool-separator"]')).toHaveText("·")
+    await expect(skill.locator('use[href="#opencode-v2-icon-post-skill"]')).toBeVisible()
   }
 })
 

packages/app/e2e/regression/subagent-child-navigation.spec.ts

@@ -26,42 +26,6 @@ test("navigates to a subagent child session missing from the session list", asyn
   await expect(titlebarRight.getByRole("button", { name: "Toggle review" })).toHaveCount(1)
 })
 
-test("returns to the parent session with Escape", async ({ page }) => {
-  await setup(page)
-  await openChildFromParent(page)
-  await expectSessionTitle(page, taskDescription)
-
-  await page.keyboard.press("Escape")
-
-  await Promise.all([expect(page).toHaveURL(sessionHref(parentID)), expectSessionTitle(page, parentTitle)])
-})
-
-test("shows parent lineage while the child timeline loads", async ({ page }) => {
-  await setup(page)
-  const requested = Promise.withResolvers<void>()
-  const release = Promise.withResolvers<void>()
-  await page.route(
-    (url) =>
-      url.pathname === `/api/session/${childID}/message` &&
-      url.port === (process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"),
-    async (route) => {
-      requested.resolve()
-      await release.promise
-      await route.fallback()
-    },
-  )
-
-  await page.goto(sessionHref(parentID))
-  await expectSessionTitle(page, parentTitle)
-  await page.locator(`a[href="${sessionHref(childID)}"]`).click()
-  await Promise.all([requested.promise, expect(page).toHaveURL(sessionHref(childID))])
-  await Promise.all([
-    expect(page.locator('[data-slot="session-title-parent"]')).toHaveText(parentTitle),
-    expect(page.locator('[data-slot="session-title-child"]')).toHaveText(childTitle),
-  ]).finally(() => release.resolve())
-  await expectSessionTitle(page, taskDescription)
-})
-
 test("keeps the parent visible while the child session resolves", async ({ page }) => {
   await setup(page)
   const requested = Promise.withResolvers<void>()
@@ -86,44 +50,6 @@ test("keeps the parent visible while the child session resolves", async ({ page
   await expectSessionTitle(page, taskDescription)
 })
 
-test("keeps the parent tab selected while a loaded child session resolves", async ({ page }) => {
-  await setup(page)
-  await openChildFromParent(page)
-  await expectSessionTitle(page, taskDescription)
-  await page.goBack()
-  await Promise.all([expect(page).toHaveURL(sessionHref(parentID)), expectSessionTitle(page, parentTitle)])
-
-  const requested = Promise.withResolvers<void>()
-  const release = Promise.withResolvers<void>()
-  await page.route(
-    (url) => url.pathname === `/api/session/${childID}` && url.port === (process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"),
-    async (route) => {
-      requested.resolve()
-      await release.promise
-      await route.fallback()
-    },
-  )
-
-  const parentTab = page.locator("[data-titlebar-tab-slot]", {
-    has: page.locator('[data-slot="tab-title"]', { hasText: parentTitle }),
-  })
-  await page.locator(`a[href="${sessionHref(childID)}"]`).click()
-  await Promise.all([requested.promise, expect(page).toHaveURL(sessionHref(childID))])
-  await Promise.all([
-    expect(parentTab).toHaveAttribute("data-active", "true"),
-    expect(page.locator('[data-slot="session-title-parent"]')).toHaveText(parentTitle),
-  ]).finally(() => release.resolve())
-  await expectSessionTitle(page, taskDescription)
-
-  const home = page.getByRole("button", { name: "Home" })
-  await home.click()
-  await expect(page).toHaveURL("/")
-  const childTab = page.locator(`[data-slot="titlebar-tabs"] a[href="${sessionHref(childID)}"]`)
-  await expect(childTab).toHaveCount(1)
-  await childTab.click()
-  await Promise.all([expect(page).toHaveURL(sessionHref(childID)), expectSessionTitle(page, taskDescription)])
-})
-
 test("shows the not found fallback when the viewed session is deleted", async ({ page }) => {
   const events: OpenCodeEvent[] = []
   await setup(page, () => events.splice(0, 1))

packages/app/e2e/regression/terminal-composer-focus.spec.ts

@@ -9,14 +9,10 @@ const sessionID = "ses_terminal_composer_focus"
 const ptyID = "pty_terminal_composer_focus"
 const newPtyID = "pty_terminal_composer_focus_new"
 const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
-const ptyInput: string[] = []
-let sendPtyOutput: ((data: string) => void) | undefined
 
 test.use({ viewport: { width: 1440, height: 900 } })
 
 test.beforeEach(async ({ page }) => {
-  ptyInput.length = 0
-  sendPtyOutput = undefined
   await mockOpenCodeServer(page, {
     directory,
     project: {
@@ -74,50 +70,7 @@ test.beforeEach(async ({ page }) => {
       body: JSON.stringify({ location: ptyLocation(), data: { ticket: "e2e-ticket", expires_in: 60 } }),
     }),
   )
-  await page.routeWebSocket(new RegExp(`/api/pty/${ptyID}/connect`), (ws) => {
-    ws.onMessage((message) => ptyInput.push(message.toString()))
-    sendPtyOutput = (data) => ws.send(data)
-  })
-})
-
-test("clears the terminal line with Command+Delete", async ({ page }) => {
-  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
-  await expectSessionTitle(page, "Terminal composer focus")
-
-  const terminal = page.locator('[data-component="terminal"]')
-  await page.keyboard.press("Control+Backquote")
-  await expect(terminal.locator("textarea")).toHaveCount(1)
-
-  await page.keyboard.press("Meta+Backspace")
-
-  await expect.poll(() => ptyInput.join("")).toBe("\x15")
-})
-
-test("hides the native contenteditable caret", async ({ page }) => {
-  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
-  await expectSessionTitle(page, "Terminal composer focus")
-
-  await page.keyboard.press("Control+Backquote")
-  const terminal = page.locator('[data-component="terminal"]')
-  await expect(terminal).toHaveAttribute("contenteditable", "true")
-  await expect(terminal).toHaveCSS("caret-color", "rgba(0, 0, 0, 0)")
-})
-
-test("reveals the terminal after its first server output renders", async ({ page }) => {
-  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
-  await expectSessionTitle(page, "Terminal composer focus")
-
-  await page.keyboard.press("Control+Backquote")
-  const terminal = page.locator('[data-component="terminal"]')
-  await expect(terminal).toHaveAttribute("contenteditable", "true")
-  await expect(terminal).toHaveCSS("opacity", "0")
-  await expect.poll(() => sendPtyOutput).toBeDefined()
-
-  sendPtyOutput?.("\x1b[?25h")
-  await expect(terminal).toHaveCSS("opacity", "0")
-
-  sendPtyOutput?.("ready")
-  await expect(terminal).toHaveCSS("opacity", "1")
+  await page.routeWebSocket(new RegExp(`/api/pty/${ptyID}/connect`), () => undefined)
 })
 
 test("routes typing to the composer unless the open terminal is focused", async ({ page }) => {

packages/app/e2e/smoke/session-timeline.spec.ts

@@ -358,8 +358,7 @@ test.describe("smoke: session timeline", () => {
     const shellTrigger = shell.locator('[data-slot="collapsible-trigger"]')
     const shellSubtitle = shell.locator('[data-slot="basic-tool-tool-subtitle"]')
     await expect(shellSubtitle).toHaveCount(0)
-    await expect(shell.locator('[data-slot="bash-command"]')).toHaveText("bun typecheck")
-    await expect(shell.locator('[data-slot="bash-result"]')).not.toContainText("bun typecheck")
+    await expect(shell.locator('[data-slot="bash-pre"]')).toContainText("$ bun typecheck")
     await shellTrigger.click()
     await expect(shellTrigger).toHaveAttribute("aria-expanded", "false")
     await expect(shellSubtitle).toHaveText("bun typecheck")

packages/app/package.json

@@ -48,11 +48,9 @@
     "typescript": "catalog:",
     "vite": "8.2.1",
     "vite-plugin-icons-spritesheet": "3.0.1",
-    "vite-plugin-pwa": "1.3.0",
     "vite-plugin-solid": "2.11.14"
   },
   "dependencies": {
-    "@ibm/plex": "6.4.1",
     "@corvu/drawer": "catalog:",
     "@dnd-kit/abstract": "0.5.0",
     "@dnd-kit/dom": "0.5.0",

packages/app/public/_headers

@@ -15,14 +15,3 @@
 
 /*.css
   Content-Type: text/css
-
-/site.webmanifest
-  Content-Type: application/manifest+json
-
-/sw.js
-  Content-Type: application/javascript
-  Cache-Control: no-cache
-
-/registerSW.js
-  Content-Type: application/javascript
-  Cache-Control: no-cache

packages/app/src/composer/adapter.ts

@@ -1,5 +1,4 @@
 import type { Data } from "@opencode-ai/client/solid"
-import type { SessionMessageUser } from "@opencode-ai/client/promise"
 import type { Accessor } from "solid-js"
 import type { ModelSelection } from "@/providers/models/selection"
 import type { ServerSDK } from "@/runtime/server/client"
@@ -42,10 +41,6 @@ export type ComposerSelection = {
 export type ComposerSession = {
   id: string
   directory: string
-  handoff?: {
-    set: (message: SessionMessageUser) => void
-    clear: (messageID: string) => void
-  }
   api: {
     command: (input: Parameters<ServerSDK["api"]["session"]["command"]>[0]) => Promise<unknown>
     shell: (input: Parameters<ServerSDK["api"]["session"]["shell"]>[0]) => Promise<unknown>
@@ -56,7 +51,6 @@ export type ComposerSession = {
     location: { command: Pick<Data["location"]["command"], "list"> }
     session: {
       prompt: (input: Parameters<Data["session"]["prompt"]>[0]) => Promise<unknown>
-      setStatus: Data["session"]["setStatus"]
     }
   }
   current: Accessor<{ agent?: string; model?: { id: string; providerID: string; variant?: string } } | undefined>
@@ -83,7 +77,7 @@ export type NewSessionComposerAdapter = ComposerAdapterBase & {
   start: (
     selection: ComposerSelection,
     submission: ReturnType<typeof createComposerSubmission>,
-  ) => Promise<{ session: ComposerSession; cleanupReady: Promise<void> } | undefined>
+  ) => Promise<ComposerSession | undefined>
 }
 
 export type ComposerAdapter = ActiveComposerAdapter | NewSessionComposerAdapter

packages/app/src/composer/composer.tsx

@@ -29,7 +29,7 @@ export function Composer(props: {
         accentSubmit={props.accentSubmit}
         borderUnderlay={props.borderUnderlay}
         class={props.class}
-        modelControlsVisible={!props.model.model.loading}
+        variantControlVisible={!props.model.model.loading}
         attachKeybind={command.keybindParts("file.attach")}
         attachShortcut={command.keybind("file.attach")}
         modelControl={

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

@@ -42,7 +42,7 @@ export type ComposerEditorProps = {
   borderUnderlay?: boolean
   class?: string
   modelControl?: JSX.Element
-  modelControlsVisible?: boolean
+  variantControlVisible?: boolean
   attachKeybind?: string[]
   attachShortcut?: string
 }
@@ -233,19 +233,17 @@ export function ComposerEditor(props: ComposerEditorProps) {
                 />
               )}
             </Show>
-            <Show when={props.modelControlsVisible ?? true}>
-              {props.modelControl}
-              <Show when={view.variant} keyed>
-                {(control) => (
-                  <Show when={control.options().length > 1}>
-                    <ComposerEditorConfiguredSelect
-                      title={i18n.t("ui.promptInput.chooseVariant")}
-                      keybind={["Shift", "Mod", "D"]}
-                      control={control}
-                    />
-                  </Show>
-                )}
-              </Show>
+            {props.modelControl}
+            <Show when={(props.variantControlVisible ?? true) && view.variant} keyed>
+              {(control) => (
+                <Show when={control.options().length > 1}>
+                  <ComposerEditorConfiguredSelect
+                    title={i18n.t("ui.promptInput.chooseVariant")}
+                    keybind={["Shift", "Mod", "D"]}
+                    control={control}
+                  />
+                </Show>
+              )}
             </Show>
           </div>
           <ComposerEditorSubmitButton

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

@@ -1,6 +1,5 @@
 import { describe, expect, test } from "bun:test"
 import type { ModelSelection } from "@/providers/models/selection"
-import type { SessionMessageUser } from "@opencode-ai/client/promise"
 import { Skill } from "@opencode-ai/schema/skill"
 import type { ActiveComposerAdapter, ComposerControls, ComposerSession, NewSessionComposerAdapter } from "./adapter"
 import { createMemoryComposerState } from "./state"
@@ -70,8 +69,6 @@ function submitInput(
 function session(input: {
   calls: string[]
   prompt: (value: Parameters<ComposerSession["data"]["session"]["prompt"]>[0]) => Promise<void>
-  handoff?: ComposerSession["handoff"]
-  statuses?: ("idle" | "running")[]
   current?: ComposerSession["current"]
   admitted?: (messageID: string) => boolean
   shell?: () => Promise<unknown>
@@ -80,7 +77,6 @@ function session(input: {
   return {
     id: "session-1",
     directory: "C:/repo",
-    handoff: input.handoff,
     current: input.current ?? (() => undefined),
     admitted: input.admitted ?? (() => false),
     api: {
@@ -96,7 +92,6 @@ function session(input: {
     data: {
       location: { command: { list: () => [] } },
       session: {
-        setStatus: (_sessionID, status) => input.statuses?.push(status),
         prompt: async (value) => {
           input.calls.push("prompt")
           await input.prompt(value)
@@ -145,12 +140,10 @@ describe("Composer submission", () => {
 
   test("starts and promotes a New Session once before admitting its first prompt", async () => {
     const draft = createMemoryComposerState({ prompt: "first prompt" }).capture()
-    const promoted = createMemoryComposerState({ prompt: "restored draft" }).capture()
+    const promoted = createMemoryComposerState().capture()
     const calls: string[] = []
-    const statuses: ("idle" | "running")[] = []
     const admitted = Promise.withResolvers<Parameters<ComposerSession["data"]["session"]["prompt"]>[0]>()
-    const cleanupReady = Promise.withResolvers<void>()
-    const target = session({ calls, statuses, prompt: async (value) => admitted.resolve(value) })
+    const target = session({ calls, prompt: async (value) => admitted.resolve(value) })
     const adapter: NewSessionComposerAdapter = {
       kind: "new-session",
       state: draft,
@@ -163,70 +156,18 @@ describe("Composer submission", () => {
       async start(_selection, submission) {
         calls.push("start")
         submission.retarget(promoted)
-        return { session: target, cleanupReady: cleanupReady.promise }
-      },
-    }
-
-    const submitted = submitInput(adapter).submit(new Event("submit"))
-    const request = await admitted.promise
-
-    expect(calls).toEqual(["start", "switch-agent", "switch-model", "prompt"])
-    expect(statuses).toEqual(["running"])
-    expect(promoted.current()).toMatchObject([{ type: "text", content: "restored draft" }])
-    cleanupReady.resolve()
-    await submitted
-
-    expect(calls).toEqual(["start", "switch-agent", "switch-model", "prompt", "submitted"])
-    expect(request.delivery).toBe("steer")
-    expect(request.text).toBe("first prompt")
-    expect(draft.current()).toEqual([{ type: "text", content: "", start: 0, end: 0 }])
-    expect(promoted.current()).toEqual([{ type: "text", content: "", start: 0, end: 0 }])
-  })
-
-  test("hands off image-only first prompts before admission", async () => {
-    const draft = createMemoryComposerState().capture()
-    draft.set([
-      { type: "text", content: "", start: 0, end: 0 },
-      {
-        type: "image",
-        id: "attachment",
-        filename: "image.png",
-        mime: "image/png",
-        blob: { id: "attachment", url: "data:image/png;base64,YQ==" },
-      },
-    ])
-    const handedOff = Promise.withResolvers<SessionMessageUser>()
-    const target = session({
-      calls: [],
-      handoff: { set: handedOff.resolve, clear() {} },
-      prompt: async () => undefined,
-    })
-    const adapter: NewSessionComposerAdapter = {
-      kind: "new-session",
-      state: draft,
-      ready: () => true,
-      controls,
-      working: () => false,
-      submitted() {},
-      async start() {
-        return { session: target, cleanupReady: Promise.resolve() }
+        return target
       },
     }
 
     await submitInput(adapter).submit(new Event("submit"))
+    const request = await admitted.promise
 
-    expect(await handedOff.promise).toMatchObject({
-      type: "user",
-      text: "",
-      files: [
-        {
-          data: "",
-          mime: "image/png",
-          source: { type: "uri", uri: "data:image/png;base64,YQ==" },
-          name: "image.png",
-        },
-      ],
-    })
+    expect(calls).toEqual(["start", "submitted", "switch-agent", "switch-model", "prompt"])
+    expect(request.delivery).toBe("steer")
+    expect(request.text).toBe("first prompt")
+    expect(draft.current()).toEqual([{ type: "text", content: "", start: 0, end: 0 }])
+    expect(promoted.current()).toEqual([{ type: "text", content: "", start: 0, end: 0 }])
   })
 
   test("does not restore a prompt already acknowledged by the durable inbox", async () => {
@@ -292,7 +233,7 @@ describe("Composer submission", () => {
       submitted() {},
       async start(_selection, submission) {
         submission.retarget(promoted)
-        return { session: target, cleanupReady: Promise.resolve() }
+        return target
       },
     }
 
@@ -309,12 +250,10 @@ describe("Composer submission", () => {
   test("reuses the message ID when an unacknowledged admission is retried", async () => {
     const state = createMemoryComposerState({ prompt: "retry me" }).capture()
     const attempts: string[] = []
-    const statuses: ("idle" | "running")[] = []
     const first = Promise.withResolvers<void>()
     const second = Promise.withResolvers<void>()
     const target = session({
       calls: [],
-      statuses,
       prompt: async (value) => {
         attempts.push(value.id ?? "")
         throw new Error("network unavailable")
@@ -344,7 +283,6 @@ describe("Composer submission", () => {
 
     expect(attempts).toHaveLength(4)
     expect(new Set(attempts).size).toBe(1)
-    expect(statuses).toEqual(["running", "idle", "running", "idle"])
     expect(state.current()).toMatchObject([{ type: "text", content: "retry me" }])
   })
 

packages/app/src/composer/submit.ts

@@ -1,5 +1,4 @@
 import { SessionMessage } from "@opencode-ai/schema/session-message"
-import type { SessionMessageUser } from "@opencode-ai/client/promise"
 import { Event } from "@opencode-ai/schema/event"
 import type { Accessor } from "solid-js"
 import type { PromptHistoryComment } from "./history/entry"
@@ -66,43 +65,15 @@ export function createComposerSubmit(input: ComposerSubmitInput) {
     const comments = input.comments.capture()
 
     try {
-      const started =
+      const session =
         input.adapter.kind === "active-session"
-          ? { session: input.adapter.session(), cleanupReady: Promise.resolve() }
+          ? input.adapter.session()
           : await input.adapter.start(value.selection, submission)
-      if (!started) return
-      const session = started.session
+      if (!session) return
 
       input.addToHistory(value.prompt, value.mode)
       input.resetHistory()
       const restore = () => restoreSubmission(input, submission, value, comments)
-
-      const command = value.mode === "normal" ? findCommand(session, value.text) : undefined
-      if (value.mode === "normal" && !command) {
-        if (value.images.length > 0) session.handoff?.set(handoffMessage(value))
-        const optimisticBusy = !input.adapter.working()
-        if (optimisticBusy) session.data.session.setStatus(session.id, "running")
-        const sending = sendPrompt(session, value).then(
-          () => ({ ok: true as const }),
-          (error) => ({ ok: false as const, error }),
-        )
-        await started.cleanupReady
-        input.adapter.submitted()
-        submission.context
-          .filter((item) => !!item.comment?.trim())
-          .forEach((item) => submission.target().context.remove(item.key))
-        input.comments.clear()
-        clearSubmission(input, submission)
-        void sending.then((result) => {
-          if (!result.ok)
-            failSubmission(input, session, "prompt", result.error, restore, value.id, () => {
-              if (optimisticBusy) session.data.session.setStatus(session.id, "idle")
-            })
-        })
-        return
-      }
-
-      await started.cleanupReady
       input.adapter.submitted()
 
       if (value.mode === "shell") {
@@ -111,6 +82,7 @@ export function createComposerSubmit(input: ComposerSubmitInput) {
         return
       }
 
+      const command = findCommand(session, value.text)
       if (command) {
         clearSubmission(input, submission)
         void sendCommand(session, value, command).catch((error) =>
@@ -119,6 +91,14 @@ export function createComposerSubmit(input: ComposerSubmitInput) {
         return
       }
 
+      submission.context
+        .filter((item) => !!item.comment?.trim())
+        .forEach((item) => submission.target().context.remove(item.key))
+      input.comments.clear()
+      clearSubmission(input, submission)
+      void sendPrompt(session, value).catch((error) =>
+        failSubmission(input, session, "prompt", error, restore, value.id),
+      )
     } finally {
       submitting.delete(input.adapter.state)
     }
@@ -130,29 +110,6 @@ export function createComposerSubmit(input: ComposerSubmitInput) {
   }
 }
 
-function handoffMessage(value: ComposerSubmission): SessionMessageUser {
-  return {
-    id: value.id,
-    type: "user",
-    text: value.text,
-    files: value.images.map((image) => ({
-      data: "",
-      mime: image.mime,
-      source: { type: "uri", uri: image.blob.url },
-      name: image.sourcePath ?? image.filename,
-    })),
-    metadata: {
-      displayText: value.text,
-      agent: value.selection.agent,
-      model: {
-        ...value.selection.model,
-        ...(value.selection.variant ? { variant: value.selection.variant } : {}),
-      },
-    },
-    time: { created: Date.now() },
-  }
-}
-
 function readSubmission(
   input: ComposerSubmitInput,
   prompt: Prompt,
@@ -356,11 +313,8 @@ function failSubmission(
   error: unknown,
   restore: () => boolean,
   messageID?: string,
-  rollback?: () => void,
 ) {
   if (messageID && session.admitted(messageID)) return
-  if (messageID) session.handoff?.clear(messageID)
-  rollback?.()
   restore()
   input.notify.failed(kind, error)
 }

packages/app/src/desktop.ts

@@ -1,7 +1,6 @@
 export { AppBaseProviders, AppInterface, preloadRoute } from "./app"
 export { ACCEPTED_FILE_EXTENSIONS } from "./runtime/platform/file-picker"
 export { useCommand } from "./shell/commands/command"
-export { currentRoute, type LayoutRoute, useCurrentRoute } from "./shell/state/layout"
 export { loadLocaleDict, normalizeLocale, type Locale, useLanguage } from "./runtime/i18n/language"
 export { type FatalRendererErrorLog, type Platform, PlatformProvider } from "./runtime/platform/platform"
 export { ServerConnection, useServers } from "./runtime/server/registry"

packages/app/src/entry.tsx

@@ -42,10 +42,6 @@ const clearAuthToken = () => {
 
 const web = createWebPlatform(pkg.version)
 
-if (import.meta.env.PROD && "serviceWorker" in navigator) {
-  window.addEventListener("load", () => void navigator.serviceWorker.register("/sw.js"), { once: true })
-}
-
 if (import.meta.env.VITE_SENTRY_DSN) {
   init({
     dsn: import.meta.env.VITE_SENTRY_DSN,
@@ -65,9 +61,7 @@ if (import.meta.env.VITE_SENTRY_DSN) {
   })
 }
 
-if (root instanceof HTMLElement && root.dataset.opencodeMounted === undefined) {
-  // Lazy chunks can import the entry chunk back under a distinct URL, so claim the root before async startup.
-  root.dataset.opencodeMounted = ""
+if (root instanceof HTMLElement) {
   void loadInitialLocale().then((locale) => {
     const auth = authFromToken(new URLSearchParams(location.search).get("auth_token"))
     clearAuthToken()

packages/app/src/home/model.ts

@@ -3,7 +3,7 @@ import { type HomeProjectSelection, useLayout } from "@/shell/state/layout"
 import { ServerConnection } from "@/runtime/server/registry"
 import { useTabs } from "@/shell/tabs/tabs"
 import { toggleHomeProjectSelection } from "@/shell/layout/helpers"
-import { createEffect, createMemo, startTransition } from "solid-js"
+import { createEffect, createMemo } from "solid-js"
 
 export function createHomeController() {
   const layout = useLayout()
@@ -50,8 +50,7 @@ export function createHomeController() {
     selection: {
       value: selection,
       set: setSelection,
-      focusServer: (conn: ServerConnection.Any) =>
-        void startTransition(() => setSelection({ server: ServerConnection.key(conn) })),
+      focusServer: (conn: ServerConnection.Any) => setSelection({ server: ServerConnection.key(conn) }),
     },
     server: {
       list: global.servers.list,

packages/app/src/home/sessions/command-palette.tsx

@@ -30,7 +30,6 @@ export function HomeCommandPalette(props: {
     opened: server.projects.list,
     stored: () => server.sync.data.project,
     load: (search, signal) => server.sdk.api.session.list({ parentID: null, search, limit: 50 }, { signal }),
-    get: (sessionID, signal) => server.sdk.api.session.get({ sessionID }, { signal }),
     untitled: () => language.t("command.session.new"),
     category: () => language.t("command.category.session"),
   })

packages/app/src/home/sessions/controller.tsx

@@ -137,17 +137,6 @@ export function createHomeSessionsController(home: HomeController) {
       showProjectName: () => !home.project.selected(),
       server: () => home.selection.value().server,
       canCreate: () => !!home.project.newSession(),
-      lookup: async (sessionID: string) => {
-        const ctx = home.server.focusedContext()
-        if (!ctx) return
-        const result = await ctx.sdk.api.session.get({ sessionID })
-        if (result.time.archived) return
-        return buildHomeSessionRecords({
-          sessions: () => [result],
-          projectDirectories,
-          projects: home.project.list,
-        })[0]
-      },
       create: home.project.openNewSession,
       open: (session: SessionInfo, options?: OpenSessionOptions) => {
         const directoryKey = pathKey(session.location.directory)

packages/app/src/home/sessions/search.ts

@@ -8,21 +8,13 @@ import { createMemo, onCleanup } from "solid-js"
 import { createStore } from "solid-js/store"
 import type { HomeController } from "../model"
 import { homeSessionSearchKey, type HomeSessionRecord, type HomeSessionsController } from "./controller"
-import { looksLikeSessionID } from "@/session/search"
 
 type HomeSessionSearchSource = Pick<HomeSessionsController, "data" | "session">
 
 export function createHomeSessionSearchController(home: HomeController, sessions: HomeSessionSearchSource) {
   const command = useCommand()
   const language = useLanguage()
-  const [state, setState] = createStore({
-    value: "",
-    focused: false,
-    highlighted: "",
-    exact: undefined as HomeSessionRecord | undefined,
-    lookingUp: false,
-  })
-  let lookup = 0
+  const [state, setState] = createStore({ value: "", focused: false, highlighted: "" })
   let root: HTMLDivElement | undefined
   let input: HTMLInputElement | undefined
   let list: HTMLDivElement | undefined
@@ -30,11 +22,9 @@ export function createHomeSessionSearchController(home: HomeController, sessions
   const results = createMemo(() => {
     const value = query().toLowerCase()
     if (!value) return []
-    const records = sessions.data
+    return sessions.data
       .searchRecords()
       .filter((record) => `${sessionLabel(record.session)} ${record.projectName}`.toLowerCase().includes(value))
-    if (!state.exact || records.some((record) => record.session.id === state.exact?.session.id)) return records
-    return [state.exact, ...records]
   })
   const active = createMemo(() => {
     const records = results()
@@ -60,7 +50,6 @@ export function createHomeSessionSearchController(home: HomeController, sessions
       close()
     }),
   )
-  onCleanup(() => lookup++)
 
   command.register("home.search", () => [
     {
@@ -78,26 +67,7 @@ export function createHomeSessionSearchController(home: HomeController, sessions
   }
 
   function close() {
-    lookup++
-    setState({ value: "", focused: false, exact: undefined, lookingUp: false })
-  }
-
-  function update(value: string) {
-    const current = ++lookup
-    const sessionID = value.trim()
-    setState({ value, highlighted: "", exact: undefined, lookingUp: false })
-    if (!looksLikeSessionID(sessionID)) return
-    setState("lookingUp", true)
-    void sessions.session.lookup(sessionID).then(
-      (record) => {
-        if (current !== lookup) return
-        setState({ exact: record, lookingUp: false })
-      },
-      () => {
-        if (current !== lookup) return
-        setState("lookingUp", false)
-      },
-    )
+    setState({ value: "", focused: false })
   }
 
   function select(record: HomeSessionRecord, options?: { background?: boolean }) {
@@ -111,11 +81,11 @@ export function createHomeSessionSearchController(home: HomeController, sessions
       placeholder,
       open,
       focus,
-      input: update,
+      input: (value: string) => setState({ value, highlighted: "" }),
       close,
     },
     result: {
-      loading: () => sessions.data.loading() || state.lookingUp,
+      loading: sessions.data.loading,
       list: results,
       active,
       noResultsLabel: () => language.t("home.sessions.search.noResults", { query: query() }),

packages/app/src/home/sessions/view.tsx

@@ -509,7 +509,7 @@ function HomeSessionsEmpty(props: { onNewSession?: () => void; language: ReturnT
     <div class="flex min-h-full flex-col items-center gap-4 px-6 pt-[52px] text-center">
       <div
         class={`
-          shrink-0 text-[13px] leading-text-compact tracking-[-0.04px]
+          shrink-0 text-[13px] leading-[13px] tracking-[-0.04px]
           text-v2-text-text-base [font-weight:530]
         `}
       >

packages/app/src/index.css

@@ -17,14 +17,6 @@
   font-style: normal;
 }
 
-@font-face {
-  font-family: "IBM Plex Mono";
-  src: url("@ibm/plex/IBM-Plex-Mono/fonts/complete/woff2/IBMPlexMono-Text.woff2") format("woff2");
-  font-weight: 440;
-  font-style: normal;
-  font-display: swap;
-}
-
 @media (display-mode: standalone) {
   /* WebKit excludes safe-area insets from dvh in installed apps. */
   #root {

packages/app/src/new-session/composer-adapter.ts

@@ -1,6 +1,5 @@
 import { base64Encode } from "@opencode-ai/util/encode"
 import { getDirectory } from "@opencode-ai/util/path"
-import type { SessionMessageUser } from "@opencode-ai/client/promise"
 import { startTransition } from "solid-js"
 import type { NewSessionComposerAdapter } from "@/composer/adapter"
 import { useComposerState } from "@/composer/persistence"
@@ -10,13 +9,11 @@ import { useLanguage } from "@/runtime/i18n/language"
 import { useLocal } from "@/providers/models/selection"
 import { usePermission } from "@/session/requests/permission"
 import { useData, useServer } from "@/runtime/server/current"
-import { type ServerSDK, useServerSDK } from "@/runtime/server/client"
+import { useServerSDK } from "@/runtime/server/client"
 import { useTabs } from "@/shell/tabs/tabs"
 import { useWorkspaceLocation } from "@/workspaces/location"
 import { useSessionKey } from "@/session/session-layout"
 import { showToast } from "@/shell/notifications/toast"
-import { SessionRouteKey, SessionStateKey } from "@/runtime/server/scope"
-import { clearSessionMessageHandoff, setSessionMessageHandoff } from "@/session/handoff"
 
 export function createNewSessionComposerAdapter(props: {
   draftID: string
@@ -56,35 +53,26 @@ export function createNewSessionComposerAdapter(props: {
       })
       if (!sessionDirectory) return
 
-      const created = data.session.create({
-        agent: selection.agent,
-        model: {
-          id: selection.model.modelID,
-          providerID: selection.model.providerID,
-          variant: selection.variant,
-        },
-        location: { directory: sessionDirectory },
-      })
-      const creation = created.request.then(
-        () => ({ ok: true as const }),
-        (error) => {
+      const created = await serverSDK.api.session
+        .create({
+          agent: selection.agent,
+          model: {
+            id: selection.model.modelID,
+            providerID: selection.model.providerID,
+            variant: selection.variant,
+          },
+          location: { directory: sessionDirectory },
+        })
+        .catch((error) => {
           showToast({
             title: language.t("prompt.toast.sessionCreateFailed.title"),
             description: errorMessage(language, error),
           })
-          return { ok: false as const, error }
-        },
-      )
-      const afterCreation = async <T,>(run: () => Promise<T>) => {
-        const result = await creation
-        if (!result.ok) throw result.error
-        return run()
-      }
-      const sessionKey = SessionStateKey.from(
-        serverSDK.scope,
-        SessionRouteKey.fromRoute(base64Encode(sessionDirectory), created.id),
-      )
-      const cleanupReady = startTransition(() => {
+        })
+      if (!created) return
+
+      data.session.remember(created)
+      await startTransition(() => {
         tabs.updateDraft(props.draftID, { worktree: undefined })
         if (permission.isAutoAcceptingDirectory(projectDirectory)) {
           permission.enableAutoAccept(created.id, sessionDirectory)
@@ -104,32 +92,13 @@ export function createNewSessionComposerAdapter(props: {
       })
 
       return {
-        cleanupReady,
-        session: {
-          id: created.id,
-          directory: sessionDirectory,
-          handoff: createMessageHandoff(sessionKey, created.id, serverSDK.event),
-          api: {
-            command: (input) => afterCreation(() => serverSDK.api.session.command(input)),
-            shell: (input) => afterCreation(() => serverSDK.api.session.shell(input)),
-            switchAgent: (input) => afterCreation(() => serverSDK.api.session.switchAgent(input)),
-            switchModel: (input) => afterCreation(() => serverSDK.api.session.switchModel(input)),
-          },
-          data: {
-            location: data.location,
-            session: {
-              setStatus: data.session.setStatus,
-              prompt: (input) =>
-                data.session.prompt({
-                  ...input,
-                  gate: Promise.all([input.gate, afterCreation(async () => undefined)]),
-                }),
-            },
-          },
-          current: () => data.session.get(created.id),
-          admitted: (messageID) =>
-            data.session.input.has(created.id, messageID) || !!data.session.message.get(created.id, messageID),
-        },
+        id: created.id,
+        directory: sessionDirectory,
+        api: serverSDK.api.session,
+        data,
+        current: () => data.session.get(created.id) ?? created,
+        admitted: (messageID) =>
+          data.session.input.has(created.id, messageID) || !!data.session.message.get(created.id, messageID),
       }
     },
   }
@@ -142,27 +111,6 @@ export function createNewSessionComposerAdapter(props: {
   }
 }
 
-function createMessageHandoff(key: string, sessionID: string, event: ServerSDK["event"]) {
-  let unsubscribe: VoidFunction | undefined
-  return {
-    set(message: SessionMessageUser) {
-      unsubscribe?.()
-      setSessionMessageHandoff(key, message)
-      unsubscribe = event.on("session.inbox.enqueued", (item) => {
-        if (item.data.sessionID !== sessionID || item.data.inboxID !== message.id) return
-        unsubscribe?.()
-        unsubscribe = undefined
-        clearSessionMessageHandoff(key, message.id)
-      })
-    },
-    clear(messageID: string) {
-      unsubscribe?.()
-      unsubscribe = undefined
-      clearSessionMessageHandoff(key, messageID)
-    },
-  }
-}
-
 async function resolveSessionDirectory(input: {
   projectDirectory: string
   worktree: string

packages/app/src/new-session/screen.tsx

@@ -1,5 +1,6 @@
 import { createPromptProjectController } from "@/new-session/project/selector"
 import { useSettingsDialog } from "@/settings/command"
+import { useTitlebarRightMount } from "@/shell/titlebar/titlebar"
 import { useSettings } from "@/settings/model"
 import { useTabs, type DraftTab } from "@/shell/tabs/tabs"
 import { useSearchParams } from "@solidjs/router"
@@ -14,6 +15,7 @@ import { useNewSessionCommands } from "./commands"
 /** The draft-only Session page. Submitting promotes the draft into a real Session. */
 export default function NewSessionPage(props: { draftId: string }) {
   const settings = useSettings()
+  const rightMount = useTitlebarRightMount()
   const [search, setSearch] = useSearchParams<{ draftId?: string; prompt?: string }>()
   const tabs = useTabs()
   const openWorkspaces = useSettingsDialog("workspaces")
@@ -67,7 +69,7 @@ export default function NewSessionPage(props: { draftId: string }) {
   return (
     <div class="relative size-full overflow-hidden flex flex-col">
       {suspendUntilPromptReady()}
-      <NewSessionStatus visible={settings.visibility.status()} />
+      <NewSessionStatus mount={rightMount()} visible={settings.visibility.status()} />
       <div class="flex-1 min-h-0 flex flex-col gap-2 p-2">
         <NewSessionView composer={model} project={project} workspace={workspace} />
       </div>

packages/app/src/new-session/view.tsx

@@ -4,6 +4,7 @@ import { Icon } from "@opencode-ai/ui/icon"
 import { Wordmark } from "@opencode-ai/ui/wordmark"
 import { Show, createMemo, createSignal } from "solid-js"
 import { createStore } from "solid-js/store"
+import { Portal } from "solid-js/web"
 import createPresence from "solid-presence"
 import { Composer } from "@/composer/composer"
 import type { ComposerModel } from "@/composer/model"
@@ -14,7 +15,6 @@ import {
   type PromptProjectController,
 } from "@/new-session/project/selector"
 import { StatusPopover } from "@/shell/status/status-popover"
-import { TitlebarRight } from "@/shell/titlebar/right-slot"
 import { useLanguage } from "@/runtime/i18n/language"
 import { useWorkspaceLocation } from "@/workspaces/location"
 import { useProviders } from "@/providers/catalog/providers"
@@ -87,16 +87,21 @@ export function NewSessionView(props: {
   )
 }
 
-export function NewSessionStatus(props: { visible: boolean }) {
+export function NewSessionStatus(props: { mount: HTMLElement | null; visible: boolean }) {
   const language = useLanguage()
+
   return (
-    <TitlebarRight>
-      <Show when={props.visible}>
-        <Tooltip appearance="standard" placement="bottom" value={language.t("status.popover.trigger")}>
-          <StatusPopover />
-        </Tooltip>
-      </Show>
-    </TitlebarRight>
+    <Show when={props.mount} keyed>
+      {(mount) => (
+        <Portal mount={mount}>
+          <Show when={props.visible}>
+            <Tooltip appearance="standard" placement="bottom" value={language.t("status.popover.trigger")}>
+              <StatusPopover />
+            </Tooltip>
+          </Show>
+        </Portal>
+      )}
+    </Show>
   )
 }
 
@@ -139,7 +144,7 @@ function ProviderTip() {
         >
           <button
             type="button"
-            class="flex h-6 min-w-0 items-center rounded-[4px] pl-1.5 text-[13px] leading-text-compact tracking-[-0.04px] text-v2-text-text-faint transition-[background-color,color] duration-150 ease-in-out hover:bg-v2-overlay-simple-overlay-hover hover:text-v2-text-text-muted focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:text-v2-text-text-muted focus-visible:outline-none"
+            class="flex h-6 min-w-0 items-center rounded-[4px] pl-1.5 text-[13px] leading-none tracking-[-0.04px] text-v2-text-text-faint transition-[background-color,color] duration-150 ease-in-out hover:bg-v2-overlay-simple-overlay-hover hover:text-v2-text-text-muted focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:text-v2-text-text-muted focus-visible:outline-none"
             onClick={openProviders}
           >
             <span class="truncate">{language.t("home.providerTip")}</span>

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

@@ -190,7 +190,7 @@ function ProviderPicker(props: { directory?: string; onSelect: (provider: string
             {(group) => (
               <Show when={group.items().length > 0}>
                 <section class="flex flex-col">
-                  <div class="px-3 pb-2 text-[13px] font-[440] leading-text-compact tracking-[-0.04px] text-v2-text-text-muted">
+                  <div class="px-3 pb-2 text-[13px] font-[440] leading-none tracking-[-0.04px] text-v2-text-text-muted">
                     {group.title}
                   </div>
                   <For each={group.items()}>
@@ -198,7 +198,7 @@ function ProviderPicker(props: { directory?: string; onSelect: (provider: string
                       <button
                         type="button"
                         data-provider-id={provider.id}
-                        class="flex min-h-9 w-full items-center gap-2 rounded-md px-3 py-2.5 text-left text-[13px] leading-text-compact tracking-[-0.04px] hover:bg-v2-overlay-simple-overlay-hover focus:bg-v2-overlay-simple-overlay-hover focus:outline-none"
+                        class="flex min-h-9 w-full items-center gap-2 rounded-md px-3 py-2.5 text-left text-[13px] leading-none tracking-[-0.04px] hover:bg-v2-overlay-simple-overlay-hover focus:bg-v2-overlay-simple-overlay-hover focus:outline-none"
                         classList={{ "bg-v2-overlay-simple-overlay-hover": store.active === provider.id }}
                         onMouseEnter={() => setStore("active", provider.id)}
                         disabled={store.connecting !== undefined}

packages/app/src/providers/models/manage.tsx

@@ -7,7 +7,6 @@ import { Switch } from "@opencode-ai/ui/switch"
 import { TextInput } from "@opencode-ai/ui/text-input"
 import { useFilteredList } from "@opencode-ai/ui/hooks"
 import { For, Show, type Component } from "solid-js"
-import { createStore } from "solid-js/store"
 import { useLocal } from "@/providers/models/selection"
 import { popularProviders } from "@/providers/catalog/providers"
 import { useLanguage } from "@/runtime/i18n/language"
@@ -24,7 +23,6 @@ export const DialogManageModels: Component = () => {
   const local = useLocal()
   const language = useLanguage()
   const dialog = useDialog()
-  const [store, setStore] = createStore({ collapsed: {} as Record<string, boolean> })
   const directory = () => decode64(local.slug())
 
   const handleConnectProvider = () => {
@@ -122,38 +120,16 @@ export const DialogManageModels: Component = () => {
                 }
               >
                 <For each={list.grouped.latest}>
-                  {(group) => {
-                    const searching = () => list.filter().length > 0
-                    const expanded = () => searching() || !store.collapsed[group.category]
-
-                    return (
-                      <div
-                        class="settings-section"
-                        data-component="settings-models-provider"
-                        data-expanded={expanded() ? "" : undefined}
-                      >
-                        <div class="settings-models-group-header justify-between">
-                          <button
-                            type="button"
-                            class="settings-models-group-trigger"
-                            aria-expanded={expanded()}
-                            disabled={searching()}
-                            onClick={() => setStore("collapsed", group.category, expanded())}
-                          >
-                            <span class="settings-models-group-chevron">
-                              <Icon
-                                name="chevron-down"
-                                size="small"
-                                classList={{ "-rotate-90 rtl:rotate-90": !expanded() }}
-                              />
-                            </span>
-                            <span class="settings-models-group-label">
-                              <ProviderIcon id={group.category} width={16} height={16} class="shrink-0" />
-                              <span class="settings-section-title">{group.items[0].provider.name}</span>
-                            </span>
-                          </button>
+                  {(group) => (
+                    <div class="settings-section" data-component="settings-models-provider">
+                      <div class="settings-models-group-header justify-between">
+                        <div class="flex min-w-0 items-center gap-2">
+                          <ProviderIcon id={group.category} width={16} height={16} class="ml-4 shrink-0" />
+                          <h3 class="settings-section-title">{group.items[0].provider.name}</h3>
+                        </div>
+                        <div>
                           <Switch
-                            class="me-6"
+                            class="mr-6"
                             checked={providerVisible(group.category)}
                             onChange={(checked) => setProviderVisibility(group.category, checked)}
                             hideLabel
@@ -161,28 +137,26 @@ export const DialogManageModels: Component = () => {
                             {group.items[0].provider.name}
                           </Switch>
                         </div>
-                        <Show when={expanded()}>
-                          <SettingsList>
-                            <For each={group.items}>
-                              {(item) => (
-                                <SettingsRow title={item.name} description="">
-                                  <div>
-                                    <Switch
-                                      checked={local.model.visible({ modelID: item.id, providerID: item.provider.id })}
-                                      onChange={(checked) => setModelVisibility(item, checked)}
-                                      hideLabel
-                                    >
-                                      {item.name}
-                                    </Switch>
-                                  </div>
-                                </SettingsRow>
-                              )}
-                            </For>
-                          </SettingsList>
-                        </Show>
                       </div>
-                    )
-                  }}
+                      <SettingsList>
+                        <For each={group.items}>
+                          {(item) => (
+                            <SettingsRow title={item.name} description="">
+                              <div>
+                                <Switch
+                                  checked={local.model.visible({ modelID: item.id, providerID: item.provider.id })}
+                                  onChange={(checked) => setModelVisibility(item, checked)}
+                                  hideLabel
+                                >
+                                  {item.name}
+                                </Switch>
+                              </div>
+                            </SettingsRow>
+                          )}
+                        </For>
+                      </SettingsList>
+                    </div>
+                  )}
                 </For>
               </Show>
             </Show>

packages/app/src/providers/models/models.tsx

@@ -1,24 +1,44 @@
-import { type Accessor, createMemo } from "solid-js"
+import { type Accessor, createMemo, createResource } from "solid-js"
+import { createStore } from "solid-js/store"
 import { DateTime } from "luxon"
 import { filter, firstBy, flat, groupBy, mapValues, pipe, uniqueBy, values } from "remeda"
 import { createSimpleContext } from "@opencode-ai/ui/context"
 import { useProviders } from "@/providers/catalog/providers"
-import { useGlobal } from "@/runtime/server/runtime"
+import { Persist, persisted } from "@/runtime/persistence/storage"
 
 export type ModelKey = { providerID: string; modelID: string }
 
 type Visibility = "show" | "hide"
+type User = ModelKey & { visibility: Visibility; favorite?: boolean }
+type Store = {
+  user: User[]
+  recent: ModelKey[]
+  variant?: Record<string, string | undefined>
+}
+
 const RECENT_LIMIT = 5
 
 function modelKey(model: ModelKey) {
   return `${model.providerID}:${model.modelID}`
 }
 
+const createModelsPersistedState = () => {
+  const [store, setStore, _, ready] = persisted(
+    Persist.global("model"),
+    createStore<Store>({
+      user: [],
+      recent: [],
+      variant: {},
+    }),
+  )
+
+  return [store, setStore, ready] as const
+}
+
 const createModelsController = (directory: Accessor<string | undefined>) => {
   const providers = useProviders(() => directory())
-  const models = useGlobal().models
-  const store = models.store
-  const setStore = models.set
+
+  const [store, setStore, ready] = createModelsPersistedState()
 
   const available = createMemo(() =>
     providers.connected().flatMap((p) =>
@@ -128,14 +148,23 @@ const createModelsController = (directory: Accessor<string | undefined>) => {
     setStore("variant", key, value)
   }
 
+  const [recentModels] = createResource(
+    async () => {
+      const recent = store.recent
+      await ready.promise
+      return recent
+    },
+    (p) => p,
+    { initialValue: [] },
+  )
   return {
-    ready: models.ready,
+    ready,
     list,
     find,
     visible,
     setVisibility,
     recent: {
-      list: models.recent,
+      list: () => recentModels()!,
       push,
     },
     variant: {

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

@@ -10,10 +10,9 @@ import { Dialog, DialogBody, DialogHeader, DialogTitle } from "@opencode-ai/ui/d
 import { Icon } from "@opencode-ai/ui/icon"
 import { IconButton } from "@opencode-ai/ui/icon-button"
 import { ScrollView } from "@opencode-ai/ui/scroll-view"
+import { List } from "@opencode-ai/ui/list"
 import { Tooltip } from "@opencode-ai/ui/tooltip"
 import { Menu } from "@opencode-ai/ui/menu"
-import { TextInput } from "@opencode-ai/ui/text-input"
-import { ProviderIcon } from "@opencode-ai/ui/provider-icon"
 import { ModelTooltip } from "./tooltip"
 import { useLanguage } from "@/runtime/i18n/language"
 import { decode64 } from "@/runtime/persistence/base64"
@@ -21,8 +20,6 @@ import { handleDocumentSearchKeydown } from "@/shell/commands/search-keydown"
 import { createMenuDismissController } from "@/shell/commands/menu-dismiss"
 import { createEventListener } from "@solid-primitives/event-listener"
 import { matchesModelSearch } from "./search"
-import { SettingsList } from "@/settings/list"
-import "@/settings/settings.css"
 
 const isFree = (provider: string, cost: { input: number } | undefined) =>
   provider === "opencode" && (!cost || cost.input === 0)
@@ -47,182 +44,70 @@ const sortModelGroups = (a: { category: string; items: ModelItem[] }, b: { categ
 
 const ModelList: Component<{
   provider?: string
+  class?: string
   onSelect: () => void
+  action?: JSX.Element
   model?: ModelState
 }> = (props) => {
+  const model = props.model ?? useLocal().model
   const language = useLanguage()
-  const controller = createModelSelectorController({
-    model: props.model,
-    provider: () => props.provider,
-    onSelect: props.onSelect,
-  })
-  const [store, setStore] = createStore({
-    search: "",
-    active: "",
-    collapsed: {} as Record<string, boolean>,
-  })
-  const models = createMemo(() => controller.models(store.search))
-  const groups = createMemo(() => controller.groups(models()))
-  const expanded = (provider: string) => store.search.length > 0 || !store.collapsed[provider]
-  const visibleModels = () => models().filter((item) => expanded(item.provider.id))
-  let scrollRef: HTMLDivElement | undefined
 
-  const setSearch = (value: string) => {
-    const first = controller.models(value).find((item) => value.length > 0 || !store.collapsed[item.provider.id])
-    setStore({ search: value, active: first ? modelKey(first) : "" })
-  }
-  const moveActive = (delta: number) => {
-    const keys = visibleModels().map(modelKey)
-    if (keys.length === 0) return
-    const index = keys.indexOf(store.active)
-    const start = index === -1 ? (delta > 0 ? -1 : 0) : index
-    setStore("active", keys[(start + delta + keys.length) % keys.length])
-    queueMicrotask(() => {
-      scrollRef
-        ?.querySelector<HTMLElement>(`[data-option-key="${CSS.escape(store.active)}"]`)
-        ?.scrollIntoView({ block: "nearest" })
-    })
-  }
-  const selectActive = () => {
-    const item = visibleModels().find((item) => modelKey(item) === store.active)
-    if (item) controller.select(item)
-  }
+  const models = createMemo(() =>
+    model
+      .list()
+      .filter((m) => model.visible({ modelID: m.id, providerID: m.provider.id }))
+      .filter((m) => (props.provider ? m.provider.id === props.provider : true)),
+  )
 
   return (
-    <div class="flex min-h-0 flex-1 flex-col">
-      <div class="shrink-0 px-4 pt-px pb-3">
-        <div class="relative">
-          <TextInput
-            type="search"
-            appearance="base"
-            class="!w-full self-stretch"
-            placeholder={language.t("dialog.model.search.placeholder")}
-            value={store.search}
-            autofocus
-            spellcheck={false}
-            autocorrect="off"
-            autocomplete="off"
-            autocapitalize="off"
-            onInput={(event) => setSearch(event.currentTarget.value)}
-            onKeyDown={(event) => {
-              if (event.altKey || event.metaKey) return
-              if (event.key === "ArrowDown") {
-                event.preventDefault()
-                moveActive(1)
-                return
-              }
-              if (event.key === "ArrowUp") {
-                event.preventDefault()
-                moveActive(-1)
-                return
-              }
-              if (event.key === "Enter" && !event.isComposing) {
-                event.preventDefault()
-                selectActive()
-              }
-            }}
-            aria-label={language.t("dialog.model.search.placeholder")}
-          />
-          <Show when={store.search}>
-            <IconButton
-              type="button"
-              variant="ghost-muted"
-              size="small"
-              class="settings-tab-search-clear"
-              icon={<Icon name="close" size="large" class="text-v2-icon-icon-muted" />}
-              onClick={() => setSearch("")}
-              aria-label={language.t("common.clear")}
-            />
+    <List
+      class={`flex-1 px-3 min-h-0 [&_[data-slot=list-scroll]]:flex-1 [&_[data-slot=list-scroll]]:min-h-0 ${props.class ?? ""}`}
+      search={{ placeholder: language.t("dialog.model.search.placeholder"), autofocus: true, action: props.action }}
+      emptyMessage={language.t("dialog.model.empty")}
+      key={(x) => `${x.provider.id}:${x.id}`}
+      items={models}
+      current={model.current()}
+      filterKeys={["provider.name", "name", "id"]}
+      sortBy={(a, b) => a.name.localeCompare(b.name)}
+      groupBy={(x) => x.provider.name}
+      sortGroupsBy={(a, b) => {
+        const aProvider = a.items[0].provider.id
+        const bProvider = b.items[0].provider.id
+        if (popularProviders.includes(aProvider) && !popularProviders.includes(bProvider)) return -1
+        if (!popularProviders.includes(aProvider) && popularProviders.includes(bProvider)) return 1
+        return popularProviders.indexOf(aProvider) - popularProviders.indexOf(bProvider)
+      }}
+      itemWrapper={(item, node) => (
+        <Tooltip
+          appearance="standard"
+          class="w-full"
+          placement="right-start"
+          gutter={12}
+          openDelay={0}
+          value={<ModelTooltip model={item} latest={item.latest} free={isFree(item.provider.id, item.cost)} />}
+        >
+          {node}
+        </Tooltip>
+      )}
+      onSelect={(x) => {
+        model.set(x ? { modelID: x.id, providerID: x.provider.id } : undefined, {
+          recent: true,
+        })
+        props.onSelect()
+      }}
+    >
+      {(i) => (
+        <div class="w-full flex items-center gap-x-2 text-13-regular">
+          <span class="truncate">{i.name}</span>
+          <Show when={isFree(i.provider.id, i.cost)}>
+            <Badge appearance="standard">{language.t("model.tag.free")}</Badge>
+          </Show>
+          <Show when={i.latest}>
+            <Badge appearance="standard">{language.t("model.tag.latest")}</Badge>
           </Show>
         </div>
-      </div>
-      <div class="relative min-h-0 flex-1">
-        <div ref={(element) => (scrollRef = element)} class="settings-panel settings-models h-full px-4 pt-4 pb-4">
-          <Show
-            when={models().length > 0}
-            fallback={<div class="settings-models-status">{language.t("dialog.model.empty")}</div>}
-          >
-            <For each={groups()}>
-              {(group) => {
-                const searching = () => store.search.length > 0
-                const open = () => expanded(group.category)
-
-                return (
-                  <section class="settings-section" data-expanded={open() ? "" : undefined}>
-                    <h3 class="settings-models-group-header">
-                      <button
-                        type="button"
-                        class="settings-models-group-trigger"
-                        aria-expanded={open()}
-                        disabled={searching()}
-                        onClick={() => setStore("collapsed", group.category, open())}
-                      >
-                        <span class="settings-models-group-chevron">
-                          <Icon name="chevron-down" size="small" classList={{ "-rotate-90 rtl:rotate-90": !open() }} />
-                        </span>
-                        <span class="settings-models-group-label">
-                          <ProviderIcon id={group.category} width={16} height={16} class="shrink-0" />
-                          <span class="settings-section-title">{group.items[0].provider.name}</span>
-                        </span>
-                      </button>
-                    </h3>
-                    <Show when={open()}>
-                      <SettingsList>
-                        <For each={group.items}>
-                          {(item) => (
-                            <button
-                              type="button"
-                              data-component="settings-row"
-                              data-option-key={modelKey(item)}
-                              class="-mx-4 w-[calc(100%+32px)] px-4 text-start first:rounded-t-lg last:rounded-b-lg hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none"
-                              classList={{ "bg-v2-overlay-simple-overlay-hover": store.active === modelKey(item) }}
-                              onMouseEnter={() => setStore("active", modelKey(item))}
-                              onMouseLeave={() => setStore("active", "")}
-                              onClick={() => controller.select(item)}
-                            >
-                              <div data-slot="settings-row-copy">
-                                <div data-slot="settings-row-title" class="flex items-center gap-2">
-                                  <Tooltip
-                                    placement="right-start"
-                                    gutter={12}
-                                    openDelay={0}
-                                    value={
-                                      <ModelTooltip
-                                        model={item}
-                                        latest={item.latest}
-                                        free={isFree(item.provider.id, item.cost)}
-                                        v2
-                                      />
-                                    }
-                                  >
-                                    <span class="min-w-0 truncate">{item.name}</span>
-                                  </Tooltip>
-                                  <Show when={isFree(item.provider.id, item.cost)}>
-                                    <Badge class="shrink-0">{language.t("model.tag.free")}</Badge>
-                                  </Show>
-                                  <Show when={item.latest}>
-                                    <Badge class="shrink-0">{language.t("model.tag.latest")}</Badge>
-                                  </Show>
-                                </div>
-                              </div>
-                              <div data-slot="settings-row-control" class="size-4">
-                                <Show when={controller.current() === modelKey(item)}>
-                                  <Icon name="check" size="small" class="shrink-0 text-v2-icon-icon-base" />
-                                </Show>
-                              </div>
-                            </button>
-                          )}
-                        </For>
-                      </SettingsList>
-                    </Show>
-                  </section>
-                )
-              }}
-            </For>
-          </Show>
-        </div>
-      </div>
-    </div>
+      )}
+    </List>
   )
 }
 
@@ -546,25 +431,18 @@ export const DialogSelectModel: Component<{ provider?: string; model?: ModelStat
   }
 
   return (
-    <Dialog size="large" variant="settings">
-      <DialogHeader hideClose closeLabel={language.t("common.close")}>
+    <Dialog>
+      <DialogHeader hideClose>
         <DialogTitle>{language.t("dialog.model.select.title")}</DialogTitle>
-        <Button icon="plus" onClick={provider}>
+        <Button class="h-7 -my-1 text-14-medium" icon="plus-small" tabIndex={-1} onClick={provider}>
           {language.t("command.provider.connect")}
         </Button>
       </DialogHeader>
-      <DialogBody class="flex min-h-0 flex-1 flex-col">
+      <DialogBody>
         <ModelList provider={props.provider} model={props.model} onSelect={() => dialog.close()} />
-        <div class="shrink-0 border-t border-v2-border-border-muted px-4 py-3">
-          <button
-            type="button"
-            class="flex h-9 w-full items-center gap-2 rounded-md px-3 text-left text-[13px] font-[530] leading-text-compact tracking-[-0.04px] text-v2-text-text-base hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none"
-            onClick={manage}
-          >
-            <Icon name="outline-sliders" size="small" />
-            <span class="min-w-0 flex-1 truncate">{language.t("dialog.model.manage")}</span>
-          </button>
-        </div>
+        <Button variant="ghost" class="ml-3 mt-5 mb-6 text-text-base self-start" onClick={manage}>
+          {language.t("dialog.model.manage")}
+        </Button>
       </DialogBody>
     </Dialog>
   )

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

@@ -30,7 +30,6 @@ export const dict = {
   "command.project.previous": "Previous project",
   "command.project.next": "Next project",
   "command.project.index": "Switch to project {{index}}",
-  "command.project.copyID": "Copy Project ID",
   "command.provider.connect": "Connect provider",
   "command.server.switch": "Switch server",
   "command.settings.open": "Open settings",
@@ -94,7 +93,6 @@ export const dict = {
   "command.session.fork.description": "Create a new session from a previous message",
   "command.session.export": "Export session",
   "command.session.export.description": "Export the full session transcript as JSON",
-  "command.session.copyID": "Copy Session ID",
 
   "palette.search.placeholder": "Search files, commands, and sessions",
   "palette.search.placeholder.home": "Search commands and sessions",
@@ -546,6 +544,7 @@ export const dict = {
   "toast.context.noLineSelection.title": "No line selection",
   "toast.context.noLineSelection.description": "Select a line range in a file tab first.",
 
+
   "toast.session.unshare.success.title": "Session unshared",
   "toast.session.unshare.success.description": "Session unshared successfully!",
   "toast.session.unshare.failed.title": "Failed to unshare session",
@@ -555,10 +554,6 @@ export const dict = {
   "toast.session.export.success.description": "Saved session to {{filename}}",
   "toast.session.export.failed.title": "Failed to export session",
   "toast.session.export.failed.description": "An error occurred while exporting the session",
-  "toast.session.copyID.failed.title": "Failed to copy session ID",
-  "toast.session.copyID.failed.description": "An error occurred while copying the session ID",
-  "toast.project.copyID.failed.title": "Failed to copy project ID",
-  "toast.project.copyID.failed.description": "An error occurred while copying the project ID",
 
   "toast.session.listFailed.title": "Failed to load sessions for {{project}}",
   "toast.project.reloadFailed.title": "Failed to reload {{project}}",
@@ -570,13 +565,10 @@ export const dict = {
   "toast.update.action.notYet": "Not yet",
 
   "error.page.title": "Something went wrong",
-  "error.page.title.status": "Server request failed",
   "error.page.description": "An error occurred while loading the application.",
-  "error.page.description.status": "The server returned an HTTP {{status}} response.",
   "error.page.description.localServerStartup": "An error occurred while starting the local server.",
   "error.page.details.label": "Error Details",
   "error.page.action.restart": "Restart",
-  "error.page.action.reload": "Reload",
   "error.page.action.report": "Report Error",
   "error.page.action.reported": "Error Reported",
   "error.page.action.exportLogs": "Export Logs",
@@ -665,10 +657,6 @@ export const dict = {
     "{{server}} is running OpenCode {{version}}, which isn't compatible with this app. Upgrade the server to OpenCode V2 to continue.",
   "session.background.moveTasks": "Move {{tasks}} to background",
   "session.background.inBackground": "Running {{tasks}} in background",
-  "session.background.moveInline": "Press {{keybind}} to move running work to the background",
-  "session.background.running": "Running work in background",
-  "session.background.runningCount.one": "{{count}} item running in background",
-  "session.background.runningCount.other": "{{count}} items running in background",
   "session.background.combine": "{{first}} and {{second}}",
   "session.background.shell.one": "{{count}} shell",
   "session.background.shell.other": "{{count}} shells",
@@ -925,10 +913,6 @@ export const dict = {
   "settings.general.row.shell.description": "Shell used by the terminal and agent tools",
   "settings.general.row.shell.autoDefault": "Auto (Default)",
   "settings.general.row.shell.terminalOnly": "terminal only",
-  "settings.general.row.terminalPlacement.title": "Terminal placement",
-  "settings.general.row.terminalPlacement.description": "Choose where the terminal opens in sessions",
-  "settings.general.row.terminalPlacement.side": "Side",
-  "settings.general.row.terminalPlacement.bottom": "Bottom",
   "settings.general.row.appearance.title": "Appearance",
   "settings.general.row.appearance.description": "Customise how OpenCode looks on your device",
   "settings.general.row.colorScheme.title": "Color scheme",
@@ -951,8 +935,6 @@ export const dict = {
   "settings.general.row.showTerminal.description": "Show the terminal button in the desktop title bar",
   "settings.general.row.showStatus.title": "Server status",
   "settings.general.row.showStatus.description": "Show the server status button in the title bar",
-  "settings.general.row.showProjectIcon.title": "Project icon",
-  "settings.general.row.showProjectIcon.description": "Show the project icon in the session header",
   "settings.general.row.mobileTitlebarBottom.title": "Bottom navigation",
   "settings.general.row.mobileTitlebarBottom.description":
     "Place the title bar and session tabs at the bottom of the screen on mobile",

packages/app/src/runtime/server/runtime.tsx

@@ -1,5 +1,5 @@
 import { createSimpleContext } from "@opencode-ai/ui/context"
-import { Accessor, createEffect, createMemo, createResource, createRoot, getOwner } from "solid-js"
+import { Accessor, createEffect, createMemo, createRoot, getOwner } from "solid-js"
 import { createStore } from "solid-js/store"
 import { createServerProjects, RECENTLY_CLOSED_DISPLAY_LIMIT, ServerConnection, useServers } from "./registry"
 import { pathKey } from "@/workspaces/path-key"
@@ -10,7 +10,6 @@ import { createData } from "@opencode-ai/client/solid"
 import type { ServerScope } from "@/runtime/server/scope"
 import { createServerPermissionState } from "@/session/requests/server-permission"
 import { createServerNotificationState } from "@/shell/notifications/notification"
-import { Persist, persisted } from "@/runtime/persistence/storage"
 
 export const { use: useGlobal, provider: GlobalProvider } = createSimpleContext({
   name: "Global",
@@ -25,7 +24,6 @@ export const { use: useGlobal, provider: GlobalProvider } = createSimpleContext(
         serverKey: undefined as ServerConnection.Key | undefined,
       },
     })
-    const models = createGlobalModels()
 
     const settingsServer = createMemo(() => {
       const list = server.list
@@ -88,7 +86,6 @@ export const { use: useGlobal, provider: GlobalProvider } = createSimpleContext(
           },
         },
       },
-      models,
       ensureServerCtx(conn: ServerConnection.Any) {
         return ensureServerCtx(conn)
       },
@@ -96,37 +93,6 @@ export const { use: useGlobal, provider: GlobalProvider } = createSimpleContext(
   },
 })
 
-function createGlobalModels() {
-  const [store, setStore, _, ready] = persisted(
-    Persist.global("model"),
-    createStore<{
-      user: Array<{ providerID: string; modelID: string; visibility: "show" | "hide"; favorite?: boolean }>
-      recent: Array<{ providerID: string; modelID: string }>
-      variant?: Record<string, string | undefined>
-    }>({
-      user: [],
-      recent: [],
-      variant: {},
-    }),
-  )
-  const [recent] = createResource(
-    async () => {
-      const value = store.recent
-      await ready.promise
-      return value
-    },
-    (value) => value,
-    { initialValue: [] },
-  )
-
-  return {
-    store,
-    set: setStore,
-    ready,
-    recent: () => recent()!,
-  }
-}
-
 function createServerController(
   conn: ServerConnection.Any,
   scope: ServerScope,

packages/app/src/servers/wsl/dialog.css

@@ -386,7 +386,7 @@
   padding: 48px 24px;
   font-size: 13px;
   font-weight: 440;
-  line-height: var(--line-height-compact);
+  line-height: 1;
   color: var(--v2-text-text-muted);
   text-align: center;
 }

packages/app/src/session/commands/use-session-commands.tsx

@@ -89,7 +89,6 @@ export const useSessionCommands = (actions: SessionCommandContext) => {
   const focusInput = actions.focusInput
 
   const sessionCommand = withCategory(language.t("command.category.session"))
-  const projectCommand = withCategory(language.t("command.category.project"))
   const fileCommand = withCategory(language.t("command.category.file"))
   const contextCommand = withCategory(language.t("command.category.context"))
   const viewCommand = withCategory(language.t("command.category.view"))
@@ -127,46 +126,6 @@ export const useSessionCommands = (actions: SessionCommandContext) => {
     }
   }
 
-  const copySessionID = async () => {
-    const sessionID = actions.session.identity.params.id
-    if (!sessionID) return
-    try {
-      await navigator.clipboard.writeText(sessionID)
-      showToast({
-        variant: "success",
-        icon: "circle-check",
-        title: language.t("common.copied"),
-        description: sessionID,
-      })
-    } catch (err) {
-      showToast({
-        variant: "error",
-        title: language.t("toast.session.copyID.failed.title"),
-        description: err instanceof Error ? err.message : language.t("toast.session.copyID.failed.description"),
-      })
-    }
-  }
-
-  const copyProjectID = async () => {
-    const projectID = actions.session.data.info()?.projectID
-    if (!projectID) return
-    try {
-      await navigator.clipboard.writeText(projectID)
-      showToast({
-        variant: "success",
-        icon: "circle-check",
-        title: language.t("common.copied"),
-        description: projectID,
-      })
-    } catch (err) {
-      showToast({
-        variant: "error",
-        title: language.t("toast.project.copyID.failed.title"),
-        description: err instanceof Error ? err.message : language.t("toast.project.copyID.failed.description"),
-      })
-    }
-  }
-
   const openFile = () => {
     void openDialog(
       () => import("@/shell/commands/dialog"),
@@ -312,12 +271,6 @@ export const useSessionCommands = (actions: SessionCommandContext) => {
       disabled: !actions.session.identity.params.id,
       onSelect: exportSession,
     }),
-    sessionCommand({
-      id: "session.copyID",
-      title: language.t("command.session.copyID"),
-      disabled: !actions.session.identity.params.id,
-      onSelect: copySessionID,
-    }),
   ]
 
   const fileCmds = () => {
@@ -341,15 +294,6 @@ export const useSessionCommands = (actions: SessionCommandContext) => {
     ].filter((v) => !!v)
   }
 
-  const projectCmds = () => [
-    projectCommand({
-      id: "project.copyID",
-      title: language.t("command.project.copyID"),
-      disabled: !actions.session.data.info()?.projectID,
-      onSelect: copyProjectID,
-    }),
-  ]
-
   const contextCmds = () => [
     contextCommand({
       id: "context.addSelection",
@@ -463,7 +407,6 @@ export const useSessionCommands = (actions: SessionCommandContext) => {
 
   command.register("session", () => [
     ...sessionCmds(),
-    ...projectCmds(),
     ...fileCmds(),
     ...contextCmds(),
     ...viewCmds(),

packages/app/src/session/composer/adapter.ts

@@ -16,7 +16,6 @@ export function createActiveComposerAdapter(input: {
   if (!id) throw new Error("Active Composer requires a Session ID")
 
   const prompt = useComposerState()
-  prompt.current()
   const state = prompt.capture()
   const data = useData()
   const server = useServerSDK()

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

@@ -101,10 +101,6 @@ export function createActiveSessionRegion(input: {
   const focus = () => {
     if (!input.session.data.isChild()) promptRef?.focus()
   }
-  const openParent = () => {
-    const id = input.session.data.parentID()
-    if (id) navigate(sessionHref(requireServerKey(input.session.identity.params.serverKey), id))
-  }
   const editable = (target: EventTarget | null | undefined) => {
     if (!(target instanceof HTMLElement)) return false
     return /^(INPUT|TEXTAREA|SELECT|BUTTON)$/.test(target.tagName) || target.isContentEditable
@@ -117,7 +113,6 @@ export function createActiveSessionRegion(input: {
     return current instanceof HTMLElement ? current : undefined
   }
   const handleKeyDown = (event: KeyboardEvent) => {
-    if (event.defaultPrevented) return
     const path = event.composedPath()
     const target = path.find((item): item is HTMLElement => item instanceof HTMLElement)
     const active = activeElement()
@@ -129,11 +124,6 @@ export function createActiveSessionRegion(input: {
     ) {
       return
     }
-    if (event.key === "Escape" && input.session.data.isChild()) {
-      event.preventDefault()
-      openParent()
-      return
-    }
     if (active === promptRef) {
       if (event.key === "Escape") promptRef?.blur()
       return
@@ -143,7 +133,7 @@ export function createActiveSessionRegion(input: {
       const scroller = input.timeline.scroller()
       if (!scroller || !isScrollKeyTarget(target ?? null, key)) return
       if (scrollKeyOwner(scroller, target ?? null, key) !== scroller) return
-      input.timeline.view.markUserScroll(scroller)
+      input.timeline.view.markGesture(scroller)
       return
     }
     if (event.key.length !== 1 || event.key === "Unidentified" || event.ctrlKey || event.metaKey) return
@@ -182,7 +172,10 @@ export function createActiveSessionRegion(input: {
     },
     region: {
       centered: input.screen.centered,
-      openParent,
+      openParent: () => {
+        const id = input.session.data.parentID()
+        if (id) navigate(sessionHref(requireServerKey(input.session.identity.params.serverKey), id))
+      },
       prompt,
       setDockRef: input.timeline.view.setDockRef,
       setPromptRef: (element: HTMLDivElement) => {
@@ -211,7 +204,9 @@ export function ActiveSessionComposerRegion(props: {
 }) {
   const region = createSessionComposerRegionController({
     state: props.model.region.state,
-    parentID: props.session.data.parentID,
+    sessionKey: props.session.identity.sessionKey,
+    sessionID: () => props.session.identity.params.id,
+    prompt: props.model.region.prompt,
     centered: props.model.region.centered,
     onResponseSubmit: props.onResponseSubmit,
     openParent: props.model.region.openParent,

packages/app/src/session/composer/session-composer-region-controller.ts

@@ -1,15 +1,47 @@
-import type { Accessor } from "solid-js"
+import { type Accessor, createEffect, createMemo, createResource } from "solid-js"
+import type { useComposerState } from "@/composer/persistence"
+import { useData } from "@/runtime/server/current"
+import { getSessionHandoff, setSessionHandoff } from "@/session/handoff"
 import type { SessionRequestModel } from "../requests/model"
 
 export function createSessionComposerRegionController(input: {
   state: SessionRequestModel
-  parentID: Accessor<string | undefined>
+  sessionKey: Accessor<string>
+  sessionID: Accessor<string | undefined>
+  prompt: ReturnType<typeof useComposerState>
   centered: Accessor<boolean>
   onResponseSubmit: () => void
   openParent: () => void
   setPromptRef: (el: HTMLDivElement) => void
   setDockRef: (el: HTMLDivElement) => void
 }) {
+  const data = useData()
+  createEffect(() => {
+    if (!input.prompt.ready()) return
+    setSessionHandoff(input.sessionKey(), {
+      prompt: input.prompt
+        .current()
+        .map((part) => {
+          if (part.type === "file") return `[file:${part.path}]`
+          if (part.type === "agent") return `@${part.name}`
+          if (part.type === "image") return `[image:${part.filename}]`
+          return part.content
+        })
+        .join("")
+        .trim(),
+    })
+  })
+
+  const parentID = createMemo(() => {
+    const id = input.sessionID()
+    return id ? data.session.get(id)?.parentID : undefined
+  })
+  const ready = Promise.resolve()
+  const [promptReady] = createResource(
+    () => input.prompt.ready.promise ?? ready,
+    (promise) => promise.then(() => true),
+  )
+
   return {
     state: input.state,
     centered: input.centered,
@@ -17,9 +49,11 @@ export function createSessionComposerRegionController(input: {
     openParent: input.openParent,
     setPromptRef: input.setPromptRef,
     setDockRef: input.setDockRef,
-    parentID: input.parentID,
-    child: () => !!input.parentID(),
-    showComposer: () => !input.state.blocked() || !!input.parentID(),
+    parentID,
+    child: () => !!parentID(),
+    showComposer: () => !input.state.blocked() || !!parentID(),
+    handoffPrompt: () => getSessionHandoff(input.sessionKey())?.prompt,
+    promptReady: () => input.prompt.ready() || promptReady(),
   }
 }
 

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

@@ -2,12 +2,15 @@ import { Show, type JSX } from "solid-js"
 import { useLanguage } from "@/runtime/i18n/language"
 import { SessionPermissionDock } from "@/session/requests/session-permission-dock"
 import { SessionQuestionDock } from "@/session/requests/session-question-dock"
+import { SessionBackgroundDock } from "@/session/requests/session-background-dock"
 import type { SessionComposerRegionController } from "./session-composer-region-controller"
 
 type SessionComposerRegionState = Pick<
   SessionComposerRegionController["state"],
   "questionRequest" | "permissionRequest" | "permissionResponding" | "decide" | "blocked"
->
+> & {
+  background: Pick<SessionComposerRegionController["state"]["background"], "blocking" | "tasks" | "move">
+}
 
 export type SessionComposerRegionViewController = Pick<
   SessionComposerRegionController,
@@ -19,6 +22,8 @@ export type SessionComposerRegionViewController = Pick<
   | "parentID"
   | "child"
   | "showComposer"
+  | "handoffPrompt"
+  | "promptReady"
 > & { state: SessionComposerRegionState }
 
 export function SessionComposerRegion(props: {
@@ -27,6 +32,9 @@ export function SessionComposerRegion(props: {
 }) {
   const language = useLanguage()
   const controller = props.controller
+  const background = () =>
+    controller.state.background.blocking().length > 0 || controller.state.background.tasks().length > 0
+
   return (
     <div
       ref={controller.setDockRef}
@@ -63,32 +71,55 @@ export function SessionComposerRegion(props: {
         </Show>
 
         <Show when={controller.showComposer()}>
-          <div
-            classList={{
-              "relative z-[70]": true,
-            }}
+          <Show
+            when={controller.promptReady()}
+            fallback={
+              <>
+                <div class="w-full min-h-32 md:min-h-40 rounded-md border border-border-weak-base bg-background-base/50 px-4 py-3 text-text-weak whitespace-pre-wrap pointer-events-none">
+                  {controller.handoffPrompt() || language.t("prompt.loading")}
+                </div>
+              </>
+            }
           >
-            <Show
-              when={controller.child()}
-              fallback={<Show when={!controller.state.blocked()}>{props.composer}</Show>}
-            >
-              <div
-                ref={controller.setPromptRef}
-                class="w-full rounded-[12px] border border-border-weak-base bg-background-base p-3 text-16-regular text-text-weak"
-              >
-                <span>{language.t("session.child.promptDisabled")} </span>
-                <Show when={controller.parentID()}>
-                  <button
-                    type="button"
-                    class="text-text-base transition-colors hover:text-text-strong"
-                    onClick={controller.openParent}
-                  >
-                    {language.t("session.child.backToParent")}
-                  </button>
-                </Show>
+            <Show when={background()}>
+              <div>
+                <SessionBackgroundDock
+                  blocking={controller.state.background.blocking()}
+                  tasks={controller.state.background.tasks()}
+                  onBackground={() => void controller.state.background.move()}
+                />
               </div>
             </Show>
-          </div>
+            <div
+              classList={{
+                "relative z-[70]": true,
+              }}
+              style={{
+                "margin-top": `${background() ? -36 : 0}px`,
+              }}
+            >
+              <Show
+                when={controller.child()}
+                fallback={<Show when={!controller.state.blocked()}>{props.composer}</Show>}
+              >
+                <div
+                  ref={controller.setPromptRef}
+                  class="w-full rounded-[12px] border border-border-weak-base bg-background-base p-3 text-16-regular text-text-weak"
+                >
+                  <span>{language.t("session.child.promptDisabled")} </span>
+                  <Show when={controller.parentID()}>
+                    <button
+                      type="button"
+                      class="text-text-base transition-colors hover:text-text-strong"
+                      onClick={controller.openParent}
+                    >
+                      {language.t("session.child.backToParent")}
+                    </button>
+                  </Show>
+                </div>
+              </Show>
+            </div>
+          </Show>
         </Show>
       </div>
     </div>

packages/app/src/session/handoff.test.ts

@@ -1,18 +0,0 @@
-import { expect, test } from "bun:test"
-import type { SessionMessageUser } from "@opencode-ai/client/promise"
-import { clearSessionMessageHandoff, getSessionMessageHandoff, setSessionMessageHandoff } from "./handoff"
-
-test("stores and clears a message handoff", () => {
-  const message = {
-    id: "msg_handoff",
-    type: "user",
-    text: "",
-    files: [{ data: "", mime: "image/png", source: { type: "uri", uri: "blob:image" } }],
-    time: { created: 1 },
-  } satisfies SessionMessageUser
-
-  setSessionMessageHandoff("session-key", message)
-  expect(getSessionMessageHandoff("session-key")).toEqual(message)
-  clearSessionMessageHandoff("session-key", message.id)
-  expect(getSessionMessageHandoff("session-key")).toBeUndefined()
-})

packages/app/src/session/handoff.ts

@@ -1,8 +1,7 @@
 import type { SelectedLineRange } from "@/workspaces/files/model"
-import type { SessionMessageUser } from "@opencode-ai/client/promise"
-import { createStore } from "solid-js/store"
 
 type HandoffSession = {
+  prompt: string
   files: Record<string, SelectedLineRange | null>
 }
 
@@ -12,8 +11,6 @@ const store = {
   session: new Map<string, HandoffSession>(),
   terminal: new Map<string, string[]>(),
 }
-const [messages, setMessages] = createStore<Record<string, SessionMessageUser | undefined>>({})
-const messageOrder = new Map<string, true>()
 
 const touch = <K, V>(map: Map<K, V>, key: K, value: V) => {
   map.delete(key)
@@ -26,32 +23,12 @@ const touch = <K, V>(map: Map<K, V>, key: K, value: V) => {
 }
 
 export const setSessionHandoff = (key: string, patch: Partial<HandoffSession>) => {
-  const prev = store.session.get(key) ?? { files: {} }
+  const prev = store.session.get(key) ?? { prompt: "", files: {} }
   touch(store.session, key, { ...prev, ...patch })
 }
 
 export const getSessionHandoff = (key: string) => store.session.get(key)
 
-export const setSessionMessageHandoff = (key: string, message: SessionMessageUser) => {
-  messageOrder.delete(key)
-  messageOrder.set(key, true)
-  setMessages(key, message)
-  while (messageOrder.size > MAX) {
-    const first = messageOrder.keys().next().value
-    if (first === undefined) return
-    messageOrder.delete(first)
-    setMessages(first, undefined)
-  }
-}
-
-export const getSessionMessageHandoff = (key: string) => messages[key]
-
-export const clearSessionMessageHandoff = (key: string, messageID: string) => {
-  if (messages[key]?.id !== messageID) return
-  messageOrder.delete(key)
-  setMessages(key, undefined)
-}
-
 export const setTerminalHandoff = (key: string, value: string[]) => {
   touch(store.terminal, key, value)
 }

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

@@ -1,12 +1,13 @@
-import { createMemo } from "solid-js"
+import { createMemo, Show } from "solid-js"
 import { createMediaQuery } from "@solid-primitives/media"
+import { Portal } from "solid-js/web"
 import { useCommand } from "@/shell/commands/command"
 import { useLanguage } from "@/runtime/i18n/language"
 import { useSettings } from "@/settings/model"
 import { useSessionLayout } from "@/session/session-layout"
 import { reviewTooltipKeybind } from "@/shell/commands/tooltip-keybind"
 import { StatusPopover } from "@/shell/status/status-popover"
-import { TitlebarRight } from "@/shell/titlebar/right-slot"
+import { useTitlebarRightMount } from "@/shell/titlebar/titlebar"
 import { SessionHeaderActions, type SessionHeaderActionsState } from "./session-header-actions"
 
 export function SessionHeader() {
@@ -27,9 +28,15 @@ export function SessionHeader() {
     onReviewToggle: () => view().reviewPanel.toggle(),
   }))
 
+  const rightMount = useTitlebarRightMount()
+
   return (
-    <TitlebarRight>
-      <SessionHeaderActions state={actions()} />
-    </TitlebarRight>
+    <Show when={rightMount()} keyed>
+      {(mount) => (
+        <Portal mount={mount}>
+          <SessionHeaderActions state={actions()} />
+        </Portal>
+      )}
+    </Show>
   )
 }

packages/app/src/session/model.ts

@@ -15,8 +15,6 @@ import {
 } from "./session-domain"
 import { useSessionLayout } from "./session-layout"
 import { createSessionOwnership } from "./session-ownership"
-import { useTabs } from "@/shell/tabs/tabs"
-import { useServer } from "@/runtime/server/current"
 
 const emptyMessages: SessionMessageInfo[] = []
 const emptyUserMessages: SessionMessageUser[] = []
@@ -25,8 +23,6 @@ const idle = { type: "idle" as const }
 export function useSessionModel() {
   const file = useFile()
   const data = useData()
-  const server = useServer()
-  const shellTabs = useTabs()
   const layout = useSessionLayout()
   const location = useWorkspaceLocation()
   const isDesktop = createMediaQuery("(min-width: 768px)")
@@ -35,16 +31,7 @@ export function useSessionModel() {
     const id = sessionID()
     return id ? data.session.get(id) : undefined
   })
-  const parentID = createMemo(() => {
-    const current = info()?.parentID
-    if (current) return current
-    const id = sessionID()
-    if (!id) return
-    const tab = shellTabs.store.find(
-      (item) => item.type === "session" && item.server === server.key && item.routeSessionId === id,
-    )
-    return tab?.type === "session" ? (tab.routeParentId ?? tab.sessionId) : undefined
-  })
+  const parentID = createMemo(() => info()?.parentID)
   const parent = createMemo(() => {
     const id = parentID()
     return id ? data.session.get(id) : undefined

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

@@ -63,7 +63,6 @@ export function createSessionRequestModel() {
       return [
         {
           type: part.name as "shell" | "subagent",
-          partID: part.id,
           id: typeof value === "string" ? value : undefined,
           label: typeof label === "string" ? label : undefined,
         },
@@ -94,13 +93,11 @@ export function createSessionRequestModel() {
         const sessionID = part.state.metadata.sessionID
         if (typeof sessionID !== "string" || completed.has(sessionID)) return []
         const description = part.state.input.description
-        const agent = part.state.input.agent
         return [
           {
             id: sessionID,
             type: "subagent" as const,
             label: typeof description === "string" ? description : sessionID,
-            agent: typeof agent === "string" ? agent : undefined,
           },
         ]
       })

packages/app/src/session/requests/session-background-dock.tsx

@@ -0,0 +1,83 @@
+import { useLanguage } from "@/runtime/i18n/language"
+import { useCommand } from "@/shell/commands/command"
+import { Keybind } from "@opencode-ai/ui/keybind"
+import { For, createMemo } from "solid-js"
+import { createStore } from "solid-js/store"
+import { SessionBackgroundPullout } from "./session-background-pullout"
+
+export function SessionBackgroundDock(props: {
+  blocking: { type: "shell" | "subagent"; id?: string; label?: string }[]
+  tasks: { id: string; type: "shell" | "subagent"; label: string }[]
+  onBackground: () => void
+}) {
+  const language = useLanguage()
+  const command = useCommand()
+  const [store, setStore] = createStore({ collapsed: true })
+  const describe = (shells: number, subagents: number) => {
+    const shell = shells ? language.plural("session.background.shell", shells, { count: shells }) : undefined
+    const subagent = subagents
+      ? language.plural("session.background.subagent", subagents, { count: subagents })
+      : undefined
+    if (shell && subagent) return language.t("session.background.combine", { first: shell, second: subagent })
+    return shell ?? subagent ?? ""
+  }
+  const summary = createMemo(() => {
+    const shells = props.tasks.filter((task) => task.type === "shell").length
+    return describe(shells, props.tasks.length - shells)
+  })
+  const moving = createMemo(() => {
+    const shells = props.blocking.filter((task) => task.type === "shell").length
+    const subagents = props.blocking.length - shells
+    const tasks = describe(shells, subagents)
+    return tasks ? language.t("session.background.moveTasks", { tasks }) : ""
+  })
+  const background = createMemo(() =>
+    summary() ? language.t("session.background.inBackground", { tasks: summary() }) : "",
+  )
+  const blocking = () => props.blocking.length > 0
+  const toggle = () => {
+    if (blocking()) {
+      props.onBackground()
+      return
+    }
+    setStore("collapsed", (value) => !value)
+  }
+
+  return (
+    <SessionBackgroundPullout
+      label={
+        <span class="flex flex-col items-start">
+          {blocking() && (
+            <span>
+              <span class="text-v2-text-text-muted">{moving()}</span>
+              <span class="pl-2">
+                <Keybind keys={command.keybindParts("session.background")} variant="neutral" />
+              </span>
+            </span>
+          )}
+          {!!props.tasks.length && <span class="text-v2-text-text-faint">{background()}</span>}
+        </span>
+      }
+      ariaLabel={[moving(), background()].filter(Boolean).join(". ")}
+      multiline={blocking() && props.tasks.length > 0}
+      collapsed={blocking() || store.collapsed}
+      collapsible={!blocking()}
+      onToggle={toggle}
+      collapseLabel={language.t("session.todo.collapse")}
+      expandLabel={language.t("session.todo.expand")}
+    >
+      <div class="px-4 pb-11 flex flex-col gap-1.5">
+        <For each={props.tasks}>
+          {(task) => (
+            <div class="flex min-w-0 items-baseline gap-2 text-13-regular">
+              <span class="shrink-0 text-13-medium text-text-strong">
+                {language.t(task.type === "shell" ? "ui.tool.shell" : "ui.tool.agent.default")}
+              </span>
+              <span class="truncate text-text-weak">{task.label}</span>
+            </div>
+          )}
+        </For>
+      </div>
+    </SessionBackgroundPullout>
+  )
+}

packages/app/src/session/requests/session-background-pullout.tsx

@@ -0,0 +1,114 @@
+import { IconButton } from "@opencode-ai/ui/icon-button"
+import { Icon } from "@opencode-ai/ui/icon"
+import { useSpring } from "@opencode-ai/ui/motion-spring"
+import { createResizeObserver } from "@solid-primitives/resize-observer"
+import { createEffect, createMemo, type JSX } from "solid-js"
+import { createStore } from "solid-js/store"
+
+export function SessionBackgroundPullout(props: {
+  label: JSX.Element
+  ariaLabel: string
+  multiline?: boolean
+  collapsed: boolean
+  collapsible?: boolean
+  onToggle: () => void
+  collapseLabel: string
+  expandLabel: string
+  children: JSX.Element
+}) {
+  const [store, setStore] = createStore({ height: 78, header: 42 })
+  const collapse = useSpring(() => (props.collapsed ? 1 : 0), { visualDuration: 0.3, bounce: 0 })
+  const value = createMemo(() => Math.max(0, Math.min(1, collapse())))
+  const off = createMemo(() => value() > 0.98)
+  const base = createMemo(() => Math.max(78, store.header + 36))
+  const full = createMemo(() => Math.max(base(), store.height))
+  let contentRef: HTMLDivElement | undefined
+  let headerRef: HTMLDivElement | undefined
+
+  createEffect(() => {
+    const element = contentRef
+    const header = headerRef
+    if (!element || !header) return
+    const update = () => {
+      setStore("height", (height) => Math.max(height, element.scrollHeight))
+      setStore("header", header.getBoundingClientRect().height)
+    }
+    update()
+    createResizeObserver([element, header], update)
+  })
+
+  return (
+    <div
+      data-component="session-background-dock"
+      class="w-full overflow-hidden rounded-xl border-[0.5px] border-v2-border-border-base bg-v2-background-bg-layer-01"
+      style={{
+        "overflow-x": "visible",
+        "overflow-y": "hidden",
+        "max-height": `${Math.max(base(), full() - value() * (full() - base()))}px`,
+      }}
+    >
+      <div ref={contentRef}>
+        <div
+          ref={headerRef}
+          data-action="session-background-toggle"
+          class="flex items-center gap-2 overflow-visible pl-4 pr-2"
+          classList={{
+            "h-[42px]": !props.multiline,
+            "min-h-[42px] py-2": props.multiline,
+          }}
+          role="button"
+          tabIndex={0}
+          onClick={props.onToggle}
+          onKeyDown={(event) => {
+            if (event.key !== "Enter" && event.key !== " ") return
+            event.preventDefault()
+            props.onToggle()
+          }}
+        >
+          <span
+            class="cursor-default inline-flex items-baseline shrink-0 overflow-visible font-[440] text-[13px] leading-5 tracking-[-0.04px] text-v2-text-text-muted"
+            aria-label={props.ariaLabel}
+            style={{
+              "--tool-motion-odometer-ms": "600ms",
+              "--tool-motion-mask": "18%",
+              "--tool-motion-mask-height": "0px",
+              "--tool-motion-spring-ms": "560ms",
+              "white-space": "pre",
+            }}
+          >
+            {props.label}
+          </span>
+          {props.collapsible !== false && (
+            <div class="ml-auto">
+              <IconButton
+                data-action="session-background-toggle-button"
+                data-collapsed={props.collapsed ? "true" : "false"}
+                icon={<Icon name="chevron-down" />}
+                size="normal"
+                variant="ghost"
+                style={{ transform: `rotate(${value() * 180}deg)` }}
+                onMouseDown={(event) => {
+                  event.preventDefault()
+                  event.stopPropagation()
+                }}
+                onClick={(event) => {
+                  event.stopPropagation()
+                  props.onToggle()
+                }}
+                aria-label={props.collapsed ? props.expandLabel : props.collapseLabel}
+              />
+            </div>
+          )}
+        </div>
+        <div
+          data-slot="session-background-list"
+          aria-hidden={props.collapsed || off()}
+          classList={{ "pointer-events-none": value() > 0.1 }}
+          style={{ visibility: off() ? "hidden" : "visible", opacity: `${Math.max(0, 1 - value())}` }}
+        >
+          {props.children}
+        </div>
+      </div>
+    </div>
+  )
+}

packages/app/src/session/route.tsx

@@ -15,8 +15,7 @@ import { SessionUIProvider } from "@/shell/routes/session-ui-provider"
 import { useTabs } from "@/shell/tabs/tabs"
 import { requireServerKey } from "@/shell/routes/session"
 import { useSessionModel } from "./model"
-import { SessionPanelFrame } from "./session-frame"
-import { SessionIdentityHeader } from "./session-identity-header"
+import { SessionPanelFrame, SessionRouteFrame } from "./session-frame"
 import { IncompatibleServerPanel } from "./incompatible-server-panel"
 import { SessionErrorFallback } from "./route-error"
 import { createSessionResolution } from "./session-resolution"
@@ -32,7 +31,7 @@ export function TargetSessionRouteContent() {
       <MarkSessionNotificationsViewed sessionID={() => params.id} />
       <ModelsProvider directory={directory}>
         <TargetSessionSettingsCommand />
-        <SessionRouteErrorBoundary sessionID={params.id} serverKey={requireServerKey(params.serverKey)}>
+        <SessionRouteErrorBoundary sessionID={params.id} serverKey={requireServerKey(params.serverKey)} padded>
           <ResolvedTargetSessionRoute />
         </SessionRouteErrorBoundary>
       </ModelsProvider>
@@ -46,14 +45,16 @@ function TargetSessionSettingsCommand() {
 }
 
 function SessionRouteErrorBoundary(
-  props: ParentProps<{ sessionID?: string; serverKey?: ServerConnection.Key }>,
+  props: ParentProps<{ sessionID?: string; serverKey?: ServerConnection.Key; padded?: boolean }>,
 ) {
   return (
     <ErrorBoundary
       fallback={(error) => (
-        <SessionStatePanel>
-          <SessionErrorFallback error={error} sessionID={props.sessionID} serverKey={props.serverKey} />
-        </SessionStatePanel>
+        <SessionRouteFrame padded={props.padded}>
+          <SessionPanelFrame raised={!!props.sessionID}>
+            <SessionErrorFallback error={error} sessionID={props.sessionID} serverKey={props.serverKey} />
+          </SessionPanelFrame>
+        </SessionRouteFrame>
       )}
     >
       {props.children}
@@ -77,14 +78,16 @@ function ResolvedTargetSessionRoute() {
     <Show
       when={!server.health?.incompatible}
       fallback={
-        <SessionStatePanel>
-          <IncompatibleServerPanel
-            onClose={() => tabs.removeSessionTab({ server: server.key, sessionId: params.id })}
-          />
-        </SessionStatePanel>
+        <SessionRouteFrame padded>
+          <SessionPanelFrame raised>
+            <IncompatibleServerPanel
+              onClose={() => tabs.removeSessionTab({ server: server.key, sessionId: params.id })}
+            />
+          </SessionPanelFrame>
+        </SessionRouteFrame>
       }
     >
-      <Show when={directory()} fallback={<PendingSessionState sessionID={params.id} />}>
+      <Show when={directory()}>
         {(value) => (
           <LocationProvider directory={value()}>
             <SessionUIProvider directory={value()} server={server.key}>
@@ -97,22 +100,6 @@ function ResolvedTargetSessionRoute() {
   )
 }
 
-function PendingSessionState(props: { sessionID: string }) {
-  return (
-    <SessionStatePanel>
-      <SessionIdentityHeader sessionID={props.sessionID} />
-    </SessionStatePanel>
-  )
-}
-
-function SessionStatePanel(props: ParentProps) {
-  return (
-    <div class="flex min-h-0 flex-1 p-2">
-      <SessionPanelFrame raised>{props.children}</SessionPanelFrame>
-    </div>
-  )
-}
-
 function TargetSessionPage() {
   const location = useWorkspaceLocation()
   const server = useServerSDK()

packages/app/src/session/screen-layout.ts

@@ -15,10 +15,6 @@ export function createSessionScreenLayout(session: SessionModel, serverScope: st
   const reviewPanelOpen = createMemo(() => reviewOpen() && !!session.identity.params.id)
   const terminalOpen = createMemo(() => session.layout.view().terminal.opened())
   const desktopTerminalOpen = createMemo(() => session.isDesktop() && terminalOpen())
-  const sideTerminalOpen = createMemo(() => desktopTerminalOpen() && settings.general.terminalPlacement() === "side")
-  const bottomTerminalOpen = createMemo(
-    () => desktopTerminalOpen() && settings.general.terminalPlacement() === "bottom",
-  )
   const fileTreeOpen = createMemo(
     () =>
       session.isDesktop() &&
@@ -27,7 +23,7 @@ export function createSessionScreenLayout(session: SessionModel, serverScope: st
         opened: layout.fileTree.opened(),
       }),
   )
-  const resizable = createMemo(() => reviewPanelOpen() || sideTerminalOpen())
+  const resizable = createMemo(() => reviewPanelOpen() || desktopTerminalOpen())
   const sidePanelOpen = createMemo(() => resizable() || fileTreeOpen())
   const [rowWidth, setRowWidth] = createSignal<number>()
   let row: HTMLDivElement | undefined
@@ -61,7 +57,7 @@ export function createSessionScreenLayout(session: SessionModel, serverScope: st
   const panelLayout = createMemo(() =>
     sessionPanelLayout({
       review: reviewPanelOpen(),
-      terminal: sideTerminalOpen(),
+      terminal: desktopTerminalOpen(),
       files: fileTreeOpen(),
     }),
   )
@@ -101,11 +97,11 @@ export function createSessionScreenLayout(session: SessionModel, serverScope: st
       panelOpen: reviewPanelOpen,
       snap: reviewSnap,
     },
-    side: { layout: panelLayout },
+    side: { layout: panelLayout, open: sidePanelOpen },
     size,
     terminal: {
-      bottomOpen: bottomTerminalOpen,
-      inlineOnlyOpen: createMemo(() => sideTerminalOpen() && !reviewPanelOpen()),
+      desktopOpen: desktopTerminalOpen,
+      inlineOnlyOpen: createMemo(() => desktopTerminalOpen() && !reviewPanelOpen()),
       open: terminalOpen,
     },
   }

packages/app/src/session/screen.tsx

@@ -8,7 +8,7 @@ import { useSettings } from "@/settings/model"
 import { MessageTimeline } from "@/session/timeline/message-timeline"
 import type { SessionModel } from "@/session/model"
 import { SESSION_PANEL_WIDTH_MIN } from "@/session/session-panel-width"
-import { SessionPanelFrame } from "@/session/session-frame"
+import { SessionPanelFrame, SessionRouteFrame } from "@/session/session-frame"
 import { TerminalPanel } from "@/session/terminal/panel"
 import { useUsageExceededDialogs } from "./usage-exceeded-dialogs"
 import { SessionErrorFallback } from "./route-error"
@@ -17,7 +17,6 @@ import { createSessionReview } from "./review/model"
 import { SessionDesktopReview, SessionMobileReview, SessionMobileTabs } from "./review/view"
 import { createSessionTimelineInteraction } from "./timeline/interaction"
 import { ActiveSessionComposerRegion, createActiveSessionRegion } from "./composer/region"
-import { SessionIdentityHeader } from "./session-identity-header"
 
 export function SessionScreen(props: { session: SessionModel }) {
   const session = props.session
@@ -59,52 +58,39 @@ export function SessionScreen(props: { session: SessionModel }) {
 
   const sessionPanelContent = () => (
     <>
+      {timeline.resource() ?? ""}
       <Show when={!isDesktop() && !!session.identity.params.id && !mobileTabsBottom()}>
         <SessionMobileTabs review={review} compact />
       </Show>
-      {/* Surface query errors without suspending session metadata while messages load. */}
-      <Show when={timeline.resource.error}>
-        {(error) => {
-          throw error()
-        }}
-      </Show>
       <div class="flex-1 min-h-0 overflow-hidden">
         <Switch>
           <Match when={session.identity.params.id && review.mobile.changes()}>
             <SessionMobileReview review={review} />
           </Match>
           <Match when={session.identity.params.id}>
-            <Show when={!messagesReady()}>
-              <SessionIdentityHeader
-                sessionID={session.identity.params.id ?? ""}
-                session={session.data.info()}
-              />
-            </Show>
-            <Show
-              when={messagesReady() ? session.identity.params.id : undefined}
-              keyed
-            >
+            <Show when={messagesReady() ? session.identity.params.id : undefined} keyed>
               {(_id) => (
                 <MessageTimeline
                   session={session}
-                  background={composer.region.state.background}
                   actions={composer.actions.timeline}
                   scroll={timeline.scroll}
                   onResumeScroll={timeline.actions.resume}
                   setScrollRef={timeline.view.setScrollRef}
                   onScheduleScrollState={timeline.view.scheduleScrollState}
-                  onPin={timeline.view.pin}
-                  onUnpin={timeline.view.unpin}
+                  onAutoScrollHandleScroll={timeline.autoScroll.handleScroll}
+                  onMarkScrollGesture={timeline.view.markGesture}
+                  hasScrollGesture={timeline.view.hasGesture()}
                   onUserScroll={timeline.view.markUserScroll}
                   onHistoryScroll={timeline.view.onHistoryScroll}
-                  onSelectionInteraction={timeline.view.selectionInteraction}
-                  pinned={timeline.view.pinned()}
+                  onAutoScrollInteraction={timeline.autoScroll.handleInteraction}
+                  shouldAnchorBottom={timeline.view.shouldAnchorBottom()}
                   centered={screen.centered()}
                   setContentRef={timeline.view.setContentRef}
                   diffs={review.details.diffs}
                   onReview={review.open}
                   workspaceMoveEligible={composer.workspaceMoveEligible()}
                   onSummaryOpenChange={review.details.setOpen}
+                  setHistoryAnchor={timeline.view.setHistoryAnchor}
                   anchor={timeline.view.anchor}
                   setRevealMessage={timeline.view.setRevealMessage}
                   setScrollToEnd={timeline.view.setScrollToEnd}
@@ -132,90 +118,53 @@ export function SessionScreen(props: { session: SessionModel }) {
   )
 
   return (
-    <>
+    <SessionRouteFrame>
       <SessionHeader />
-      <div class="flex-1 min-h-0 flex flex-col gap-2 p-2">
-        <div ref={screen.panel.ref} class="flex-1 min-h-0 flex flex-col md:flex-row gap-2">
-          <div
-            classList={{
-              "@container relative shrink-0 flex flex-col min-h-0 h-full flex-1 md:flex-none transition-[width]": true,
-              "duration-[240ms] ease-[cubic-bezier(0.22,1,0.36,1)] will-change-[width] motion-reduce:transition-none":
-                !screen.size.active() && !screen.review.snap() && !screen.terminal.inlineOnlyOpen(),
-            }}
-            style={{
-              width: screen.panel.width(),
-            }}
-          >
-            <Show when={screen.panel.key()} keyed>
-              {(_) => (
-                <SessionPanelFrame raised={!!session.identity.params.id}>
-                  <ErrorBoundary fallback={sessionErrorFallback}>{sessionPanelContent()}</ErrorBoundary>
-                </SessionPanelFrame>
-              )}
-            </Show>
+      <div ref={screen.panel.ref} class="flex-1 min-h-0 flex flex-col md:flex-row gap-2 p-2">
+        <div
+          classList={{
+            "@container relative shrink-0 flex flex-col min-h-0 h-full flex-1 md:flex-none transition-[width]": true,
+            "duration-[240ms] ease-[cubic-bezier(0.22,1,0.36,1)] will-change-[width] motion-reduce:transition-none":
+              !screen.size.active() && !screen.review.snap() && !screen.terminal.inlineOnlyOpen(),
+          }}
+          style={{
+            width: screen.panel.width(),
+          }}
+        >
+          <Show when={screen.panel.key()} keyed>
+            {(_) => (
+              <SessionPanelFrame raised={!!session.identity.params.id}>
+                <ErrorBoundary fallback={sessionErrorFallback}>{sessionPanelContent()}</ErrorBoundary>
+              </SessionPanelFrame>
+            )}
+          </Show>
 
-            <Show when={screen.panel.resizable()}>
-              <div onPointerDown={() => screen.size.start()}>
-                <ResizeHandle
-                  class="-end-1"
-                  direction="horizontal"
-                  size={screen.panel.resizedWidth()}
-                  min={SESSION_PANEL_WIDTH_MIN}
-                  max={screen.panel.max()}
-                  onResize={(width) => {
-                    screen.size.touch()
-                    layout.session.resize(width)
-                  }}
-                />
-              </div>
-            </Show>
-          </div>
-
-          <Show when={isDesktop() && screen.side.layout().visible}>
-            <div class="min-w-0 h-full flex flex-1 flex-col">
-              <Show when={screen.review.panelOpen() || screen.files.open()}>
-                <div class="min-h-0 flex-1">
-                  <SessionDesktopReview review={review} />
-                </div>
-              </Show>
-              <Show when={screen.side.layout().stacked}>
-                <div class="relative h-2 shrink-0" onPointerDown={() => screen.size.start()}>
-                  <ResizeHandle
-                    class="!relative !inset-auto !h-full !w-full !transform-none"
-                    direction="vertical"
-                    size={layout.terminal.height()}
-                    min={100}
-                    max={typeof window === "undefined" ? 600 : window.innerHeight * 0.6}
-                    collapseThreshold={50}
-                    onResize={(height) => {
-                      screen.size.touch()
-                      layout.terminal.resize(height)
-                    }}
-                    onCollapse={() => session.layout.view().terminal.close()}
-                  />
-                </div>
-              </Show>
-              <Show when={screen.terminal.open() && !screen.terminal.bottomOpen()}>
-                <div
-                  classList={{
-                    "min-h-0 shrink-0": screen.side.layout().stacked,
-                    "min-h-0 flex-1": !screen.side.layout().stacked,
-                  }}
-                >
-                  <TerminalPanel stacked={screen.side.layout().stacked} />
-                </div>
-              </Show>
+          <Show when={screen.panel.resizable()}>
+            <div onPointerDown={() => screen.size.start()}>
+              <ResizeHandle
+                class="-end-1"
+                direction="horizontal"
+                size={screen.panel.resizedWidth()}
+                min={SESSION_PANEL_WIDTH_MIN}
+                max={screen.panel.max()}
+                onResize={(width) => {
+                  screen.size.touch()
+                  layout.session.resize(width)
+                }}
+              />
             </div>
           </Show>
         </div>
 
-        <Show when={screen.terminal.open() && (!isDesktop() || screen.terminal.bottomOpen())}>
-          <div classList={{ "relative min-h-0 shrink-0": isDesktop() }}>
-            <Show when={isDesktop()}>
-              <div
-                class="absolute z-10 -top-1 left-0 right-0 h-2"
-                onPointerDown={() => screen.size.start()}
-              >
+        <Show when={isDesktop() ? screen.side.layout().visible : screen.terminal.open()}>
+          <div class="min-w-0 h-full flex flex-1 flex-col">
+            <Show when={isDesktop() && (screen.review.panelOpen() || screen.files.open())}>
+              <div class="min-h-0 flex-1">
+                <SessionDesktopReview review={review} />
+              </div>
+            </Show>
+            <Show when={screen.side.layout().stacked}>
+              <div class="relative h-2 shrink-0" onPointerDown={() => screen.size.start()}>
                 <ResizeHandle
                   class="!relative !inset-auto !h-full !w-full !transform-none"
                   direction="vertical"
@@ -231,10 +180,19 @@ export function SessionScreen(props: { session: SessionModel }) {
                 />
               </div>
             </Show>
-            <TerminalPanel stacked={isDesktop()} />
+            <Show when={screen.terminal.open()}>
+              <div
+                classList={{
+                  "min-h-0 shrink-0": screen.side.layout().stacked,
+                  "min-h-0 flex-1": !screen.side.layout().stacked,
+                }}
+              >
+                <TerminalPanel stacked={screen.side.layout().stacked} />
+              </div>
+            </Show>
           </div>
         </Show>
       </div>
-    </>
+    </SessionRouteFrame>
   )
 }

packages/app/src/session/search.ts

@@ -1,3 +0,0 @@
-export function looksLikeSessionID(value: string) {
-  return value.length > 20 && value.startsWith("ses_")
-}

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

@@ -1,145 +0,0 @@
-import type { SessionInfo } from "@opencode-ai/client/promise"
-import { Icon } from "@opencode-ai/ui/icon"
-import { ProjectAvatar } from "@opencode-ai/ui/project-avatar"
-import { useNavigate } from "@solidjs/router"
-import { createMemo, Show, type ParentProps } from "solid-js"
-import { useServer } from "@/runtime/server/current"
-import { displayName, getProjectAvatarSource, projectForSession } from "@/shell/layout/helpers"
-import { getProjectAvatarVariant } from "@/shell/state/layout"
-import { tabKey, useTabs } from "@/shell/tabs/tabs"
-import { useSettings } from "@/settings/model"
-import { pathKey } from "@/workspaces/path-key"
-import { isWorkspaceDirectory } from "@/workspaces/paths"
-import { sessionHref } from "@/shell/routes/session"
-import { sessionTitle } from "./title"
-
-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>
-  )
-}
-
-export function SessionIdentityHeader(props: { sessionID: string; session?: SessionInfo }) {
-  const server = useServer()
-  const tabs = useTabs()
-  const settings = useSettings()
-  const navigate = useNavigate()
-  const tab = createMemo(() =>
-    tabs.store.find(
-      (item) =>
-        item.type === "session" &&
-        item.server === server.key &&
-        (item.sessionId === props.sessionID || item.routeSessionId === props.sessionID),
-    ),
-  )
-  const info = createMemo(() => {
-    const current = tab()
-    return current ? tabs.info[tabKey(current)] : undefined
-  })
-  const parentID = createMemo(() => {
-    if (props.session?.parentID) return props.session.parentID
-    const current = tab()
-    if (current?.type !== "session" || current.routeSessionId !== props.sessionID) return
-    return current.routeParentId ?? current.sessionId
-  })
-  const parent = createMemo(() => {
-    const id = parentID()
-    return id ? server.ctx.data.session.get(id) : undefined
-  })
-  const parentTitle = createMemo(() => {
-    const id = parentID()
-    const current = tab()
-    return sessionTitle(parent()?.title ?? (current?.type === "session" && current.sessionId === id ? info()?.title : undefined))
-  })
-  const directory = createMemo(() => props.session?.location.directory ?? info()?.directory)
-  const title = createMemo(() => sessionTitle(props.session?.title ?? (parentID() ? undefined : info()?.title)))
-  const project = createMemo(() => {
-    const projects = server.ctx.projects.list()
-    if (props.session) return projectForSession(props.session, projects)
-    const value = directory()
-    if (!value) return undefined
-    const key = pathKey(value)
-    return projects.find(
-      (item) => pathKey(item.worktree) === key || item.sandboxes?.some((sandbox) => pathKey(sandbox) === key),
-    )
-  })
-  const showProjectIcon = () =>
-    import.meta.env.VITE_OPENCODE_CHANNEL !== "prod" && settings.general.showProjectIcon() && !!directory()
-  const workspaceSession = createMemo(() => isWorkspaceDirectory(project(), directory() ?? ""))
-  const navigateParent = () => {
-    const id = parentID()
-    const current = tab()
-    if (!id || current?.type !== "session") return
-    tabs.rememberSessionRoute(current, id, parent()?.parentID)
-    navigate(sessionHref(server.key, id))
-  }
-
-  return (
-    <Show when={title() || parentTitle() || showProjectIcon()}>
-      <SessionTitleHeader>
-        <div class="flex h-12 w-full items-center justify-between gap-2">
-          <div class="flex min-w-0 flex-1 items-center gap-1">
-            <div class="flex min-w-0 w-full flex-1 items-center">
-              <span
-                classList={{
-                  "flex size-6 shrink-0 items-center justify-center": true,
-                  "text-v2-icon-icon-accent": workspaceSession() && !showProjectIcon(),
-                  "text-v2-icon-icon-muted": !workspaceSession() && !showProjectIcon(),
-                }}
-              >
-                <Show
-                  when={showProjectIcon()}
-                  fallback={<Icon name={workspaceSession() ? "workspace-isolated" : "monitor"} />}
-                >
-                  <ProjectAvatar
-                    fallback={displayName(project() ?? { worktree: directory() ?? "" })}
-                    src={getProjectAvatarSource(project()?.id, project()?.icon)}
-                    variant={getProjectAvatarVariant(project()?.icon?.color)}
-                  />
-                </Show>
-              </span>
-              <Show when={parentTitle()}>
-                {(value) => (
-                  <button
-                    type="button"
-                    data-slot="session-title-parent"
-                    dir="auto"
-                    class="min-w-0 max-w-[40%] truncate pl-2 text-[13px] font-[530] leading-4 tracking-[-0.04px] text-v2-text-text-faint transition-colors hover:text-v2-text-text-muted"
-                    onClick={navigateParent}
-                  >
-                    {value()}
-                  </button>
-                )}
-              </Show>
-              <Show when={parentTitle() && title()}>
-                <span
-                  data-slot="session-title-separator"
-                  class="-translate-y-[0.5px] pl-2 pr-1 text-[11px] font-medium text-v2-text-text-faint"
-                  aria-hidden="true"
-                >
-                  /
-                </span>
-              </Show>
-              <Show when={title()}>
-                {(value) => (
-                  <h1
-                    data-slot={parentID() ? "session-title-child" : undefined}
-                    dir="auto"
-                    class="w-fit truncate rounded-[6px] px-2 py-1 text-[13px] font-[530] leading-4 tracking-[-0.04px] text-v2-text-text-base"
-                  >
-                    {value()}
-                  </h1>
-                )}
-              </Show>
-            </div>
-          </div>
-        </div>
-      </SessionTitleHeader>
-    </Show>
-  )
-}

packages/app/src/session/session-resolution.test.ts

@@ -1,23 +0,0 @@
-import { describe, expect, test } from "bun:test"
-import { createRoot } from "solid-js"
-import { createSessionResolution } from "./session-resolution"
-
-describe("session resolution", () => {
-  test("waits for a route session ID", () => {
-    createRoot((dispose) => {
-      let syncs = 0
-      const sessions = {
-        get: () => undefined,
-        sync: () => {
-          syncs++
-          return Promise.resolve()
-        },
-      }
-      const session = createSessionResolution(() => undefined, () => sessions)
-
-      expect(session()).toBeUndefined()
-      expect(syncs).toBe(0)
-      dispose()
-    })
-  })
-})

packages/app/src/session/session-resolution.ts

@@ -29,20 +29,15 @@ type Resolution<T> = { id: string; store: SessionStore<T> } & (
 // session that simply has not resolved yet. Resolve failures rethrow on read so
 // the enclosing SessionRouteErrorBoundary renders the scoped session error.
 export function createSessionResolution<T>(
-  sessionID: () => string | undefined,
+  sessionID: () => string,
   sessions: () => SessionStore<T>,
   options?: { children?: boolean },
 ) {
-  const cached = createMemo(() => {
-    const id = sessionID()
-    if (!id) return
-    return sessions().get(id)
-  })
+  const cached = createMemo(() => sessions().get(sessionID()))
   const [status, setStatus] = createSignal<Resolution<T>>()
 
   createEffect(
     on([sessionID, sessions] as const, ([id, store]) => {
-      if (!id) return
       let stale = false
       onCleanup(() => {
         stale = true
@@ -65,11 +60,10 @@ export function createSessionResolution<T>(
 
   return createMemo(() => {
     const id = sessionID()
-    if (!id) return
     const value = cached()
     if (value) return value
     const state = status()
-    if (!state || state.id !== id || state.store !== sessions()) return undefined
+    if (state?.id !== id || state.store !== sessions()) return undefined
     if (state.state === "failed") throw state.failure
     // A session missing after settlement was deleted, possibly by another client.
     // Match the resolve error so the boundary shows the

packages/app/src/session/story-model.tsx

@@ -84,6 +84,7 @@ export type SessionPreviewProps = {
   draft?: string
   request?: { type: "permission"; value: PermissionRequest } | { type: "question"; value: FormInfo }
   reviewOpened?: boolean
+  backgroundTasks?: { id: string; type: "shell" | "subagent"; label: string }[]
   child?: { parentID: string }
   terminal?: { title: string; lines: string[] }
 }
@@ -195,6 +196,13 @@ function SessionSurfaceState(props: SessionPreviewProps & { onReset: () => void
         setState("request", undefined)
         setState("activity", `Permission response: ${response}`)
       },
+      background: {
+        blocking: () => [],
+        tasks: () => props.backgroundTasks ?? [],
+        move: async () => {
+          setState("activity", "Requested background execution")
+        },
+      },
       blocked: () => state.request !== undefined,
     },
     centered: () => true,
@@ -208,6 +216,8 @@ function SessionSurfaceState(props: SessionPreviewProps & { onReset: () => void
     parentID: () => props.child?.parentID,
     child: () => !!props.child,
     showComposer: () => true,
+    handoffPrompt: () => undefined,
+    promptReady: () => true,
   } satisfies SessionComposerRegionViewController
 
   return (

packages/app/src/session/terminal/terminal-key-event.test.ts

@@ -1,17 +0,0 @@
-import { describe, expect, test } from "bun:test"
-import { terminalKeyInput } from "./terminal-key-event"
-
-describe("terminalKeyInput", () => {
-  test("maps Command+Delete to the terminal line-clear control code", () => {
-    const event = new KeyboardEvent("keydown", { key: "Backspace", metaKey: true })
-
-    expect(terminalKeyInput(event)).toBe("\x15")
-  })
-
-  test("leaves other Backspace shortcuts to the terminal", () => {
-    expect(terminalKeyInput(new KeyboardEvent("keydown", { key: "Backspace" }))).toBeUndefined()
-    expect(
-      terminalKeyInput(new KeyboardEvent("keydown", { key: "Backspace", metaKey: true, shiftKey: true })),
-    ).toBeUndefined()
-  })
-})

packages/app/src/session/terminal/terminal-key-event.ts

@@ -1,5 +0,0 @@
-export function terminalKeyInput(event: KeyboardEvent) {
-  if (!event.metaKey || event.ctrlKey || event.altKey || event.shiftKey) return
-  if (event.key.toLowerCase() !== "backspace") return
-  return "\x15"
-}

packages/app/src/session/terminal/terminal.tsx

@@ -15,7 +15,6 @@ import { useServerSDK } from "@/runtime/server/client"
 import { terminalFontFamily, useSettings } from "@/settings/model"
 import type { LocalPTY } from "@/session/terminal/context"
 import { disposeIfDisposable, getHoveredLinkText, setOptionIfSupported } from "@/session/terminal/runtime-adapters"
-import { terminalKeyInput } from "@/session/terminal/terminal-key-event"
 import { terminalWriter } from "@/session/terminal/writer"
 
 const TOGGLE_TERMINAL_ID = "terminal.toggle"
@@ -221,14 +220,6 @@ export const Terminal = (props: TerminalProps) => {
   let drop: VoidFunction | undefined
   let reconn: ReturnType<typeof setTimeout> | undefined
   let tries = 0
-  let revealed = false
-
-  const reveal = () => {
-    if (revealed) return
-    if (!serializeAddon.serializeAsText({ trimWhitespace: true })) return
-    revealed = true
-    container.style.opacity = "1"
-  }
 
   const cleanup = () => {
     if (!cleanups.length) return
@@ -417,12 +408,6 @@ export const Terminal = (props: TerminalProps) => {
       t.attachCustomKeyEventHandler((event) => {
         const key = event.key.toLowerCase()
 
-        const input = terminalKeyInput(event)
-        if (input) {
-          t.input(input, true)
-          return true
-        }
-
         if (event.ctrlKey && event.shiftKey && !event.metaKey && key === "c") {
           document.execCommand("copy")
           return true
@@ -508,7 +493,6 @@ export const Terminal = (props: TerminalProps) => {
 
       if (restore && restoreSize) {
         await write(restore)
-        reveal()
         fit.fit()
         scheduleSize(t.cols, t.rows)
         if (scrollY !== undefined) t.scrollToLine(scrollY)
@@ -518,7 +502,6 @@ export const Terminal = (props: TerminalProps) => {
         scheduleSize(t.cols, t.rows)
         if (restore) {
           await write(restore)
-          reveal()
           if (scrollY !== undefined) t.scrollToLine(scrollY)
         }
         startResize()
@@ -615,7 +598,6 @@ export const Terminal = (props: TerminalProps) => {
           const data = typeof event.data === "string" ? event.data : ""
           if (!data) return
           output?.push(data)
-          if (!revealed) output?.flush(reveal)
           cursor += data.length
           seek = cursor
         }
@@ -696,7 +678,7 @@ export const Terminal = (props: TerminalProps) => {
       dir="ltr"
       data-prevent-autofocus
       tabIndex={-1}
-      style={{ "background-color": terminalColors().background, "caret-color": "transparent", opacity: 0 }}
+      style={{ "background-color": terminalColors().background }}
       classList={{
         ...local.classList,
         "select-text": true,

packages/app/src/session/timeline/background-work.stories.tsx

@@ -1,36 +0,0 @@
-import { BackgroundMoveHint, BackgroundWorkSummary } from "./message-timeline"
-
-const tasks = [
-  { id: "task_explore", type: "subagent" as const, agent: "explore", label: "Reviewing component implementation" },
-  { id: "task_status", type: "shell" as const, label: "opencode2 service status" },
-  { id: "task_openapi", type: "shell" as const, label: "opencode2 api get /openapi.json" },
-  { id: "task_tests", type: "shell" as const, label: "bun test packages/app" },
-]
-
-export default {
-  title: "OpenCode/Session/Background work",
-  id: "session-background-work",
-  parameters: {
-    docs: {
-      description: {
-        component: "Production controls for moving blocking work and inspecting active background tasks.",
-      },
-    },
-  },
-}
-
-export const InlineMoveHint = {
-  render: () => (
-    <div class="flex w-[696px] max-w-full flex-col items-start gap-4">
-      <BackgroundMoveHint keybind={["Ctrl", "B"]} />
-    </div>
-  ),
-}
-
-export const SummaryPanelEntry = {
-  render: () => (
-    <div class="w-[280px] rounded-[6px] bg-v2-background-bg-base px-0.5 py-1.5 shadow-[var(--v2-elevation-raised)]">
-      <BackgroundWorkSummary tasks={tasks} />
-    </div>
-  ),
-}

packages/app/src/session/timeline/controller-projection.test.ts

@@ -1,6 +1,6 @@
 import { describe, expect, test } from "bun:test"
 import type { SessionInboxInfo, SessionMessageInfo } from "@opencode-ai/client/promise"
-import { applyTimelineMessageHandoff, visibleTimelineMessages } from "./controller-projection"
+import { visibleTimelineMessages } from "./controller-projection"
 
 const messages = [
   { id: "msg_1", type: "user", text: "first", time: { created: 1 } },
@@ -41,37 +41,3 @@ describe("visibleTimelineMessages", () => {
     expect(visibleTimelineMessages(messages, [], "msg_0")).toEqual([])
   })
 })
-
-describe("applyTimelineMessageHandoff", () => {
-  const handoff = {
-    id: "msg_image",
-    type: "user",
-    text: "",
-    files: [
-      {
-        data: "",
-        mime: "image/png",
-        source: { type: "uri", uri: "blob:image" },
-        name: "image.png",
-      },
-    ],
-    time: { created: 1 },
-  } satisfies SessionMessageInfo
-
-  test("shows a promoted image-only prompt before client admission", () => {
-    expect(applyTimelineMessageHandoff([], handoff)).toEqual([handoff])
-  })
-
-  test("adds attachments to the client's optimistic row", () => {
-    const optimistic = { id: handoff.id, type: "user", text: "", time: { created: 2 } } satisfies SessionMessageInfo
-    expect(applyTimelineMessageHandoff([optimistic], handoff)).toEqual([{ ...optimistic, files: handoff.files }])
-  })
-
-  test("keeps the durable attachment payload", () => {
-    const durable = {
-      ...handoff,
-      files: [{ data: "YQ==", mime: "image/png", source: { type: "inline" } }],
-    } satisfies SessionMessageInfo
-    expect(applyTimelineMessageHandoff([durable], handoff)).toEqual([durable])
-  })
-})

packages/app/src/session/timeline/controller-projection.ts

@@ -1,13 +1,4 @@
-import type { SessionInboxInfo, SessionMessageInfo, SessionMessageUser } from "@opencode-ai/client/promise"
-
-export function applyTimelineMessageHandoff(messages: SessionMessageInfo[], handoff?: SessionMessageUser) {
-  if (!handoff) return messages
-  const index = messages.findIndex((message) => message.id === handoff.id)
-  if (index < 0) return [...messages, handoff]
-  const message = messages[index]
-  if (message.type !== "user" || message.files?.length) return messages
-  return messages.map((item, current) => (current === index ? { ...message, files: handoff.files } : item))
-}
+import type { SessionInboxInfo, SessionMessageInfo } from "@opencode-ai/client/promise"
 
 export function visibleTimelineMessages(
   messages: SessionMessageInfo[],

packages/app/src/session/timeline/controller.tsx

@@ -16,15 +16,9 @@ import { sessionHref } from "@/shell/routes/session"
 import { sessionTitle } from "@/session/title"
 import { downloadSessionExport, fetchSessionExport, sessionExportFilename } from "@/session/commands/export"
 import { showToast } from "@/shell/notifications/toast"
-import {
-  applyTimelineMessageHandoff,
-  timelineChildTitle,
-  timelineRemovedSessionIDs,
-  visibleTimelineMessages,
-} from "./controller-projection"
+import { timelineChildTitle, timelineRemovedSessionIDs, visibleTimelineMessages } from "./controller-projection"
 import { createTimelineProjection } from "./projection"
 import { useServer } from "@/runtime/server/current"
-import { getSessionMessageHandoff } from "@/session/handoff"
 
 const emptyMessages: SessionMessageInfo[] = []
 const taskDescription = (message: SessionMessageInfo, sessionID: string): string | undefined => {
@@ -58,16 +52,10 @@ export function createTimelineController(input: { session: TimelineSessionSource
   const tabs = useTabs()
   const dialog = useDialog()
   const language = useLanguage()
-  const handedOffMessages = createMemo(() =>
-    applyTimelineMessageHandoff(
-      input.session.history.messages(),
-      getSessionMessageHandoff(input.session.identity.sessionKey()),
-    ),
-  )
   const projectedMessages = createMemo(() => {
     const id = input.session.identity.sessionID()
     return visibleTimelineMessages(
-      handedOffMessages(),
+      input.session.history.messages(),
       id ? data.session.pending.list(id) : [],
       input.session.data.info()?.revert?.messageID,
     )

packages/app/src/session/timeline/interaction.ts

@@ -1,4 +1,5 @@
 import type { SessionMessageUser } from "@opencode-ai/client/promise"
+import { createAutoScroll } from "@opencode-ai/ui/hooks"
 import { createResizeObserver } from "@solid-primitives/resize-observer"
 import { useLocation } from "@solidjs/router"
 import { createEffect, on, onCleanup } from "solid-js"
@@ -15,31 +16,23 @@ export function createSessionTimelineInteraction(session: SessionModel) {
   const [state, setState] = createStore({
     messageID: undefined as string | undefined,
     pendingMessage: undefined as string | undefined,
+    gestureAt: 0,
     scroll: {
       overflow: false,
       jump: false,
     },
-    follow: {
-      sessionKey: session.identity.sessionKey(),
-      pinned: true,
-    },
     refs: {
       content: undefined as HTMLDivElement | undefined,
       dock: undefined as HTMLDivElement | undefined,
     },
   })
-  // The single source of truth for "follow the newest content". The virtualizer pins and unpins
-  // it from scroll geometry; everything else only expresses explicit intent.
-  const pinned = () => state.follow.sessionKey !== session.identity.sessionKey() || state.follow.pinned
-  const pin = () => setState("follow", { sessionKey: session.identity.sessionKey(), pinned: true })
-  const unpin = () => {
-    if (!scroller || scroller.scrollHeight - scroller.clientHeight <= 1) return
-    setState("follow", { sessionKey: session.identity.sessionKey(), pinned: false })
-  }
+  const autoScroll = createAutoScroll({ working: () => true, overflowAnchor: "none" })
   let scroller: HTMLDivElement | undefined
   let dockHeight = 0
   let revealMessage = (_id: string) => {}
   let scrollToEnd = () => {}
+  let captureHistoryAnchor = () => {}
+  let restoreHistoryAnchor = (_done: boolean) => {}
   let scrollMark = 0
   let messageMark = 0
   let scrollStateFrame: number | undefined
@@ -109,10 +102,10 @@ export function createSessionTimelineInteraction(session: SessionModel) {
     pendingMessage: () => state.pendingMessage,
     setPendingMessage: (value) => setState("pendingMessage", value),
     setActiveMessage,
-    follow: {
-      unpin,
-      toBottom: () => {
-        pin()
+    autoScroll: {
+      pause: autoScroll.pause,
+      forceScrollToBottom: () => {
+        autoScroll.resume()
         scrollToEnd()
       },
     },
@@ -124,7 +117,7 @@ export function createSessionTimelineInteraction(session: SessionModel) {
   })
   const resume = () => {
     setState("messageID", undefined)
-    pin()
+    autoScroll.resume()
     scrollToEnd()
     clearMessageHash()
     if (scroller) scheduleScrollState(scroller)
@@ -140,23 +133,21 @@ export function createSessionTimelineInteraction(session: SessionModel) {
       resume()
       return
     }
-    unpin()
+    autoScroll.pause()
     scrollToMessage(messages[target], "auto")
   }
-  // A gesture inside a nested scrollable region scrolls that region, not the timeline.
-  const markUserScroll = (target?: EventTarget | null) => {
+  const shouldAnchorBottom = () =>
+    !location.hash && !state.messageID && !state.pendingMessage && !autoScroll.userScrolled()
+  const markGesture = (target?: EventTarget | null) => {
     if (!scroller) return
     const element = target instanceof Element ? target : undefined
     const nested = element?.closest("[data-scrollable]")
     if (nested && nested !== scroller) return
-    scrollMark += 1
-  }
-  const selectionInteraction = () => {
-    const selection = window.getSelection()
-    if (selection && selection.toString().length > 0) unpin()
+    setState("gestureAt", Date.now())
   }
   const setScrollRef = (element: HTMLDivElement | undefined) => {
     scroller = element
+    autoScroll.scrollRef(element)
     if (!element) return
     scheduleScrollState(element)
     fill()
@@ -167,12 +158,15 @@ export function createSessionTimelineInteraction(session: SessionModel) {
     historyRequests.add(owner.key)
     const before = timeline.messages().length
     try {
-      await timeline.history.loadOlder()
+      await timeline.history.loadOlder({
+        before: () => owner.run(captureHistoryAnchor),
+        after: (done) => owner.run(() => restoreHistoryAnchor(done)),
+      })
     } finally {
       historyRequests.delete(owner.key)
     }
     if (!owner.current() || timeline.messages().length <= before) return
-    if (pinned() || !scroller || scroller.scrollTop >= 200 || !timeline.history.more()) return
+    if (!autoScroll.userScrolled() || !scroller || scroller.scrollTop >= 200 || !timeline.history.more()) return
     if (historyContinuationFrame !== undefined) cancelAnimationFrame(historyContinuationFrame)
     historyContinuationFrame = requestAnimationFrame(() => {
       historyContinuationFrame = undefined
@@ -183,7 +177,7 @@ export function createSessionTimelineInteraction(session: SessionModel) {
     if (
       historyRequests.has(session.ownership.key()) ||
       timeline.history.loading() ||
-      pinned() ||
+      !autoScroll.userScrolled() ||
       !scroller ||
       scroller.scrollTop >= 200
     )
@@ -195,7 +189,7 @@ export function createSessionTimelineInteraction(session: SessionModel) {
     fillFrame = requestAnimationFrame(() => {
       fillFrame = undefined
       if (!session.identity.params.id || !timeline.ready()) return
-      if (!pinned() || timeline.history.loading() || !scroller) return
+      if (autoScroll.userScrolled() || timeline.history.loading() || !scroller) return
       if (scroller.scrollHeight > scroller.clientHeight + 1 || !timeline.history.more()) return
       void loadOlder()
     })
@@ -213,10 +207,8 @@ export function createSessionTimelineInteraction(session: SessionModel) {
     on(
       session.identity.sessionKey,
       () => {
-        pin()
         setState("messageID", undefined)
         setState("pendingMessage", undefined)
-        setState("scroll", { overflow: false, jump: false })
       },
       { defer: true },
     ),
@@ -226,16 +218,15 @@ export function createSessionTimelineInteraction(session: SessionModel) {
       () => session.identity.params.id,
       (id, previous) => {
         if (!id || !previous || id === previous || state.messageID || state.pendingMessage || location.hash) return
-        pin()
-        scrollToEnd()
+        autoScroll.resume()
       },
     ),
   )
   createEffect(
     on(
-      pinned,
-      (value) => {
-        if (!value) return
+      autoScroll.userScrolled,
+      (scrolled) => {
+        if (scrolled) return
         setState("messageID", undefined)
         clearMessageHash()
       },
@@ -250,11 +241,11 @@ export function createSessionTimelineInteraction(session: SessionModel) {
           timeline.ready(),
           timeline.history.more(),
           timeline.history.loading(),
-          pinned(),
+          autoScroll.userScrolled(),
           visibleUserMessages().length,
         ] as const,
-      ([id, ready, more, loading, following]) => {
-        if (id && ready && more && !loading && following) fill()
+      ([id, ready, more, loading, scrolled]) => {
+        if (id && ready && more && !loading && !scrolled) fill()
       },
       { defer: true },
     ),
@@ -273,7 +264,8 @@ export function createSessionTimelineInteraction(session: SessionModel) {
       if (next === dockHeight) return
       const delta = next - dockHeight
       const stick = scroller
-        ? pinned() || scroller.scrollHeight - scroller.clientHeight - scroller.scrollTop < 10 + Math.max(0, delta)
+        ? !autoScroll.userScrolled() ||
+          scroller.scrollHeight - scroller.clientHeight - scroller.scrollTop < 10 + Math.max(0, delta)
         : false
       dockHeight = next
       if (stick) scrollToEnd()
@@ -293,6 +285,7 @@ export function createSessionTimelineInteraction(session: SessionModel) {
       resume,
       setActiveMessage,
     },
+    autoScroll,
     lastUserMessage: timeline.lastUserMessage,
     resource: timeline.resource,
     ready: timeline.ready,
@@ -300,19 +293,25 @@ export function createSessionTimelineInteraction(session: SessionModel) {
     scroller: () => scroller,
     view: {
       anchor,
-      markUserScroll,
+      hasGesture: () => Date.now() - state.gestureAt < 250,
+      markGesture,
+      markUserScroll: () => {
+        scrollMark += 1
+      },
       onHistoryScroll,
-      pin,
-      pinned,
-      selectionInteraction,
       scheduleScrollState,
       setContentRef: (element: HTMLDivElement | undefined) => {
         setState("refs", "content", element)
+        autoScroll.contentRef(element)
         if (scroller) scheduleScrollState(scroller)
       },
       setDockRef: (element: HTMLDivElement | undefined) => {
         setState("refs", "dock", element)
       },
+      setHistoryAnchor: (handlers: { capture: () => void; restore: (done: boolean) => void }) => {
+        captureHistoryAnchor = handlers.capture
+        restoreHistoryAnchor = handlers.restore
+      },
       setRevealMessage: (reveal: (id: string) => void) => {
         revealMessage = reveal
       },
@@ -320,7 +319,7 @@ export function createSessionTimelineInteraction(session: SessionModel) {
       setScrollToEnd: (scroll: () => void) => {
         scrollToEnd = scroll
       },
-      unpin,
+      shouldAnchorBottom,
     },
   }
 }