fix(core): skip nested repositories in snapshots

2026-08-24 06:33:01 -04:00 · 2026-08-22 21:45:31 +00:00
377 changed files with 4242 additions and 10744 deletions
@@ -1,6 +0,0 @@
---
-"@opencode-ai/client": patch
-"@opencode-ai/plugin": patch
---
-
-Add form reply and cancellation operations that reconcile terminal forms in the local TUI projection.
@@ -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
@@ -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
@@ -84,11 +84,6 @@ jobs:
        env:
          OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER: ${{ runner.os == 'Windows' && 'true' || 'false' }}

-      - name: Verify published codemode package
-        if: runner.os == 'Linux'
-        working-directory: packages/codemode
-        run: bun run script/publish.ts --dry-run
-
      - name: Verify compiled service lifecycle
        if: always()
        timeout-minutes: 10
@@ -1,8 +1,8 @@
 {
  "nodeModules": {
-    "x86_64-linux": "sha256-LvDHCOm8OAZfvb0I0L6AbdOevRoQmEJnnqrSgAiNHv8=",
-    "aarch64-linux": "sha256-O0L0iHjb4cwl9xWHIna8VFHyQzoAKzfY8oMpVNayMOg=",
-    "aarch64-darwin": "sha256-ETP8FE71NqufYDUbR7tBdsMEOVQ44wLmsZBeZiSRBRY=",
-    "x86_64-darwin": "sha256-WUcoLldDriT3QxcdlnBQhuPrxDNub0EDvvZXk/pDMpY="
+    "x86_64-linux": "sha256-V1G3RuuwtlVx166oDVCqQ9v7ELWRr5JDYitcCMitbNA=",
+    "aarch64-linux": "sha256-nm/N60X7kdkNIa2oCgqyNp9ewrBrWvr6ES0qhxzypQc=",
+    "aarch64-darwin": "sha256-7UQtp4KrtxuT6MMrz7YYcJcF9/b5ECobkSwzI+yLe0Q=",
+    "x86_64-darwin": "sha256-jrn0GOa7qDskowio97bvhl7rsideXqHVbygSi3M1cf0="
  }
 }
@@ -39,19 +39,19 @@
      "packages/stats/*"
    ],
    "catalog": {
-      "@effect/opentelemetry": "4.0.0-rc.111",
-      "@effect/platform-node": "4.0.0-rc.111",
-      "@effect/platform-node-shared": "4.0.0-rc.111",
-      "@effect/sql-sqlite-bun": "4.0.0-rc.111",
+      "@effect/opentelemetry": "4.0.0-rc.110",
+      "@effect/platform-node": "4.0.0-rc.110",
+      "@effect/platform-node-shared": "4.0.0-rc.110",
+      "@effect/sql-sqlite-bun": "4.0.0-rc.110",
      "@npmcli/arborist": "9.4.0",
      "@types/bun": "1.3.13",
      "@types/cross-spawn": "6.0.6",
      "@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",
+      "@opentui/core": "0.5.6",
+      "@opentui/keymap": "0.5.6",
+      "@opentui/solid": "0.5.6",
      "@tanstack/solid-virtual": "3.13.37",
      "@shikijs/stream": "4.2.0",
      "@standard-schema/spec": "1.1.0",
@@ -71,9 +71,9 @@
      "@tailwindcss/vite": "4.1.11",
      "diff": "8.0.2",
      "dompurify": "3.3.1",
-      "drizzle-kit": "1.0.0-rc.5-ab785fc",
-      "drizzle-orm": "1.0.0-rc.5-169397b",
-      "effect": "4.0.0-rc.111",
+      "drizzle-kit": "1.0.0-rc.2",
+      "drizzle-orm": "1.0.0-rc.2",
+      "effect": "4.0.0-rc.110",
      "ai": "6.0.168",
      "cross-spawn": "7.0.6",
      "hono": "4.10.7",
@@ -166,6 +166,7 @@
    "@npmcli/agent@4.0.2": "patches/@npmcli%2Fagent@4.0.2.patch",
    "@silvia-odwyer/photon-node@0.3.4": "patches/@silvia-odwyer%2Fphoton-node@0.3.4.patch",
    "@standard-community/standard-openapi@0.2.9": "patches/@standard-community%2Fstandard-openapi@0.2.9.patch",
+    "drizzle-orm@1.0.0-rc.2": "patches/drizzle-orm@1.0.0-rc.2.patch",
    "solid-js@1.9.10": "patches/solid-js@1.9.10.patch",
    "@ai-sdk/mistral@3.0.51": "patches/@ai-sdk%2Fmistral@3.0.51.patch",
    "gcp-metadata@8.1.2": "patches/gcp-metadata@8.1.2.patch",
@@ -213,7 +213,7 @@ Errors must be expressed as `ToolFailure`. The runtime catches it and emits a `t
 - Input failed the `parameters` Schema.
 - The handler returned a `ToolFailure`.

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

 - Routes surface the model's call as a `tool-call` event with `providerExecuted: true`, and the provider's result as a matching `tool-result` event with `providerExecuted: true`.
 - Callers detect `providerExecuted` on `tool-call` and **skip local dispatch** — no handler is invoked and no `tool-error` is raised for "unknown tool". The provider already executed it.
@@ -41,7 +41,6 @@ const SSE_EVENTS = new Set([
  "content_block_start",
  "content_block_delta",
  "content_block_stop",
-  "ping",
  "error",
 ])
 export const framing = Framing.sseEvents(SSE_EVENTS)
@@ -54,7 +53,7 @@ export type ThinkingInput =
  | {
      readonly type: "disabled"
    }
-  | ({ readonly type: "enabled"; readonly display?: "summarized" | "omitted" } & (
+  | ({ readonly type: "enabled" } & (
      | { readonly budgetTokens: number; readonly budget_tokens?: number }
      | { readonly budgetTokens?: number; readonly budget_tokens: number }
    ))
@@ -205,18 +204,14 @@ const AnthropicTool = Schema.Struct({
 type AnthropicTool = Schema.Schema.Type<typeof AnthropicTool>

 const AnthropicToolChoice = Schema.Union([
-  Schema.Struct({
-    type: Schema.Literals(["auto", "any", "none"]),
-    disable_parallel_tool_use: Schema.optional(Schema.Boolean),
-  }),
-  Schema.Struct({ type: Schema.tag("tool"), name: Schema.String, disable_parallel_tool_use: Schema.optional(Schema.Boolean) }),
+  Schema.Struct({ type: Schema.Literals(["auto", "any", "none"]) }),
+  Schema.Struct({ type: Schema.tag("tool"), name: Schema.String }),
 ])

 const AnthropicThinking = Schema.Union([
  Schema.Struct({
    type: Schema.tag("enabled"),
    budget_tokens: Schema.Number,
-    display: Schema.optional(Schema.Literals(["summarized", "omitted"])),
  }),
  Schema.Struct({
    type: Schema.tag("adaptive"),
@@ -373,26 +368,10 @@ const lowerTool = (breakpoints: Cache.Breakpoints, tool: ToolDefinition, inputSc

 const lowerToolChoice = (toolChoice: NonNullable<LLMRequest["toolChoice"]>) =>
  ProviderShared.matchToolChoice("Anthropic Messages", toolChoice, {
-    auto: () => ({
-      type: "auto" as const,
-      ...(toolChoice.disableParallelToolUse === undefined
-        ? {}
-        : { disable_parallel_tool_use: toolChoice.disableParallelToolUse }),
-    }),
+    auto: () => ({ type: "auto" as const }),
    none: () => ({ type: "none" as const }),
-    required: () => ({
-      type: "any" as const,
-      ...(toolChoice.disableParallelToolUse === undefined
-        ? {}
-        : { disable_parallel_tool_use: toolChoice.disableParallelToolUse }),
-    }),
-    tool: (name) => ({
-      type: "tool" as const,
-      name,
-      ...(toolChoice.disableParallelToolUse === undefined
-        ? {}
-        : { disable_parallel_tool_use: toolChoice.disableParallelToolUse }),
-    }),
+    required: () => ({ type: "any" as const }),
+    tool: (name) => ({ type: "tool" as const, name }),
  })

 const scrubToolCallID = (id: string) => id.replace(/[^a-zA-Z0-9_-]/g, "_")
@@ -635,12 +614,15 @@ const resolveOptions = Effect.fn("AnthropicMessages.resolveOptions")(function* (

 const resolveThinking = Effect.fn("AnthropicMessages.resolveThinking")(function* (input: unknown) {
  if (!ProviderShared.isRecord(input)) return undefined
-  const display =
-    input.display === "summarized" || input.display === "omitted"
-      ? (input.display as "summarized" | "omitted")
-      : undefined
-  if (input.type === "adaptive")
+  if (input.type === "adaptive") {
+    const display =
+      input.display === "summarized"
+        ? ("summarized" as const)
+        : input.display === "omitted"
+          ? ("omitted" as const)
+          : undefined
    return { type: "adaptive" as const, ...(display === undefined ? {} : { display }) }
+  }
  if (input.type === "disabled") return { type: "disabled" as const }
  if (input.type !== "enabled") return undefined
  const budget =
@@ -651,7 +633,7 @@ const resolveThinking = Effect.fn("AnthropicMessages.resolveThinking")(function*
        : undefined
  if (budget === undefined)
    return yield* ProviderShared.invalidRequest("Anthropic thinking provider option requires budgetTokens")
-  return { type: "enabled" as const, budget_tokens: budget, ...(display === undefined ? {} : { display }) }
+  return { type: "enabled" as const, budget_tokens: budget }
 })

 const fromRequest = Effect.fn("AnthropicMessages.fromRequest")(function* (request: LLMRequest) {
@@ -812,8 +794,7 @@ const onContentBlockStart = (state: ParserState, event: AnthropicEvent): StepRes
  const block = event.content_block
  if (!block) return [state, NO_EVENTS]

-  if (block.type === "tool_use" || block.type === "server_tool_use") {
-    if (event.index === undefined || !block.id) return [state, NO_EVENTS]
+  if ((block.type === "tool_use" || block.type === "server_tool_use") && event.index !== undefined) {
    const events: LLMEvent[] = []
    const lifecycle = Lifecycle.stepStart(state.lifecycle, events)
    return [
@@ -821,7 +802,7 @@ const onContentBlockStart = (state: ParserState, event: AnthropicEvent): StepRes
        ...state,
        lifecycle,
        tools: ToolStream.start(state.tools, event.index, {
-          id: block.id,
+          id: block.id ?? String(event.index),
          name: block.name ?? "",
          input:
            block.input !== undefined && (!ProviderShared.isRecord(block.input) || Object.keys(block.input).length > 0)
@@ -833,7 +814,7 @@ const onContentBlockStart = (state: ParserState, event: AnthropicEvent): StepRes
      [
        ...events,
        LLMEvent.toolInputStart({
-          id: block.id,
+          id: block.id ?? String(event.index),
          name: block.name ?? "",
          providerExecuted: block.type === "server_tool_use" ? true : undefined,
        }),
@@ -1023,28 +1004,15 @@ const providerErrorMessage = (event: AnthropicEvent): string => {
 }

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

 const step = (state: ParserState, event: AnthropicEvent) => {
  if (event.type === "message_start") return Effect.succeed(onMessageStart(state, event))
-  if (event.type === "content_block_start") {
-    const block = event.content_block
-    if (block && (block.type === "tool_use" || block.type === "server_tool_use")) {
-      if (event.index === undefined)
-        return Effect.fail(ProviderShared.eventError(ADAPTER, `Anthropic ${block.type} missing index`))
-      if (!block.id)
-        return Effect.fail(
-          ProviderShared.eventError(ADAPTER, `Anthropic tool_use missing id at index ${event.index}`),
-        )
-    }
-    return Effect.succeed(onContentBlockStart(state, event))
-  }
+  if (event.type === "content_block_start") return Effect.succeed(onContentBlockStart(state, event))
  if (event.type === "content_block_delta") return onContentBlockDelta(state, event)
  if (event.type === "content_block_stop") return onContentBlockStop(state, event)
  if (event.type === "message_delta") return Effect.succeed(onMessageDelta(state, event))
@@ -1083,10 +1051,7 @@ export const route = Route.make({
  provider: "anthropic",
  providerMetadataKey: "anthropic",
  protocol,
-  endpoint: Endpoint.path(
-    (input) => (input.request.model.provider === "anthropic" ? `${PATH}?beta=true` : PATH),
-    { baseURL: DEFAULT_BASE_URL },
-  ),
+  endpoint: Endpoint.path(PATH, { baseURL: DEFAULT_BASE_URL }),
  auth: Auth.none,
  framing,
  headers: () => ({ "anthropic-version": "2023-06-01" }),
@@ -17,7 +17,7 @@ import {
  type ToolCallPart,
  type ToolDefinition,
 } from "../schema/index.js"
-import { JsonObject, optionalArray, optionalNull, ProviderShared } from "./shared.js"
+import { JsonObject, optionalArray, ProviderShared } from "./shared.js"
 import { GeminiToolSchema } from "./utils/gemini-tool-schema.js"
 import { Lifecycle } from "./utils/lifecycle.js"
 import { ToolSchemaProjection } from "./utils/tool-schema.js"
@@ -41,13 +41,6 @@ const requiresThoughtSignatureFallback = (modelID: string) => {
 // so their tool-result attachments lower as a separate user turn instead.
 const routesLegacyToolMedia = (modelID: string) => /gemini-2[.-]5(?:[.-]|$)/i.test(modelID)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    if ("functionCall" in part) {
      const input = part.functionCall.args === undefined ? {} : part.functionCall.args
-      // Gemini 2.0+ supplies a unique function call ID on the part; when omitted (e.g. Gemini 1.5),
+      // 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.
-      // A repeated supplier id would replay as two identical calls, so only the first occurrence keeps it.
-      // A `null` supplier id normalizes to absent so the generated-id fallback applies.
-      const supplied = part.functionCall.id ?? undefined
-      const duplicate = supplied !== undefined && seenCallIds.has(supplied)
-      if (supplied !== undefined) seenCallIds.add(supplied)
-      const id = supplied !== undefined && !duplicate ? supplied : `tool_${crypto.randomUUID().replaceAll("-", "")}`
+      const id = part.functionCall.id ?? `tool_${crypto.randomUUID().replaceAll("-", "")}`
+      const metadata = {
+        ...(part.functionCall.id === undefined ? {} : { functionCallId: part.functionCall.id }),
+        ...(part.thoughtSignature === undefined ? {} : { thoughtSignature: part.thoughtSignature }),
+      }
      lifecycle = Lifecycle.reasoningEnd(
        lifecycle,
        events,
@@ -654,8 +637,7 @@ const step = (state: ParserState, event: GeminiEvent) => {
          id,
          name: part.functionCall.name,
          input,
-          providerMetadata:
-            part.thoughtSignature ? googleMetadata({ thoughtSignature: part.thoughtSignature }) : undefined,
+          providerMetadata: Object.keys(metadata).length > 0 ? googleMetadata(metadata) : undefined,
        }),
      )
      hasToolCalls = true
@@ -669,7 +651,6 @@ const step = (state: ParserState, event: GeminiEvent) => {
      lifecycle,
      reasoningSignature,
      textSignature,
-      seenCallIds,
      finishReason: candidate.finishReason ?? nextState.finishReason,
    },
    events,
@@ -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"
@@ -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 {
@@ -112,8 +116,6 @@ const driver = (options: Options, body: string): WebSocketChannelDriver => {
          responseID = created
          return { type: "frame", frame }
        }
-        // Keepalives carry no response state and may arrive before response.created.
-        if (event.type === "keepalive") return { type: "frame", frame }
        if (!responseID)
          return yield* ProviderShared.eventError(
            options.id,
@@ -156,13 +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
@@ -5,7 +5,6 @@ import { Protocol } from "../route/protocol.js"
 import {
  AIError,
  LLMEvent,
-  ProviderInternalReason,
  Usage,
  type FinishReason,
  type JsonSchema,
@@ -43,12 +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>
@@ -59,14 +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,
@@ -91,7 +81,6 @@ const OpenResponsesFunctionCallOutputContent = Schema.Union([
  OpenResponsesInputText,
  OpenResponsesInputImage,
  OpenResponsesInputFile,
-  OpenResponsesInputVideo,
 ])

 const OpenResponsesFunctionCallOutput = Schema.Union([
@@ -248,7 +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(
@@ -313,6 +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
@@ -321,6 +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 }
@@ -333,6 +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
@@ -362,7 +366,7 @@ export const lowerTool = Effect.fn("OpenResponses.lowerTool")(function* (
    type: "function" as const,
    name: tool.name,
    description: tool.description,
-    parameters: inputSchema,
+    parameters: ToolSchemaProjection.responses(inputSchema),
    // The common tool definition does not currently express Responses strict-schema policy.
    strict: false,
  }
@@ -410,29 +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.dataUrl }),
+      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* (
@@ -441,17 +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* (
@@ -464,20 +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,
  )
 })

@@ -530,7 +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] })
@@ -580,23 +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 })
-          if (store === false) {
-            // The server is not storing this exchange, so the tool outcome has to
-            // travel in the input. Non-content results degrade to their text form.
-            const content: ReadonlyArray<Content> =
-              part.result.type === "content"
-                ? part.result.value
-                : [{ type: "text", text: ProviderShared.toolResultText(part) }]
+          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", [
@@ -633,7 +607,6 @@ const lowerMessages = Effect.fn("OpenResponses.lowerMessages")(function* (reques

 const lowerOptions = (request: LLMRequest) => {
  const options = OpenResponsesOptions.resolve(request)
-  const cacheKey = ProviderShared.clampPromptCacheKey(request.promptCacheKey)
  return {
    ...(options.instructions ? { instructions: options.instructions } : {}),
    ...(options.store !== undefined ? { store: options.store } : {}),
@@ -643,7 +616,7 @@ const lowerOptions = (request: LLMRequest) => {
      ? { stream_options: { include_obfuscation: options.streamOptions.includeObfuscation } }
      : {}),
    ...(options.topLogprobs !== undefined ? { top_logprobs: options.topLogprobs } : {}),
-    ...(cacheKey ? { prompt_cache_key: cacheKey } : {}),
+    ...(request.promptCacheKey ? { prompt_cache_key: request.promptCacheKey } : {}),
    ...(options.include ? { include: options.include } : {}),
    ...(options.reasoningEffort || options.reasoningSummary
      ? { reasoning: { effort: options.reasoningEffort, summary: options.reasoningSummary } }
@@ -759,7 +732,7 @@ const TERMINAL_TYPES = new Set(["error", "response.completed", "response.incompl
 export const terminal = (event: Event) => TERMINAL_TYPES.has(event.type)

 const onOutputTextDelta = (state: ParserState, event: Event, id: string): StepResult => {
-  if (!event.delta || !state.messageItems.has(id)) return [state, NO_EVENTS]
+  if (!event.delta) return [state, NO_EVENTS]
  const events: LLMEvent[] = []
  const phase = state.messagePhases[id]
  const metadata = providerMetadata(state, { itemId: id, ...(phase === undefined ? {} : { phase }) })
@@ -777,9 +750,10 @@ const onOutputTextDone = (state: ParserState, event: Event, id: string): StepRes
 }

 export const onReasoningDelta = (state: ParserState, event: Event, itemID: string): StepResult => {
-  if (!event.delta || !state.reasoningItems[itemID]) return [state, NO_EVENTS]
+  if (!event.delta) return [state, NO_EVENTS]
  const events: LLMEvent[] = []
-  const id = `${itemID}:${event.summary_index ?? 0}`
+  const id =
+    event.summary_index !== undefined || state.reasoningItems[itemID] ? `${itemID}:${event.summary_index ?? 0}` : itemID
  return [
    {
      ...state,
@@ -808,17 +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 [
@@ -857,9 +832,27 @@ const onOutputItemAdded = (state: ParserState, event: Event): StepResult => {

 const onReasoningSummaryPartAdded = (state: ParserState, event: Event): StepResult => {
  if (!event.item_id || event.summary_index === undefined) return [state, NO_EVENTS]
-  const item = state.reasoningItems[event.item_id]
-  if (!item) return [state, NO_EVENTS]
-  if (event.summary_index === 0) return [state, NO_EVENTS]
+  const item = state.reasoningItems[event.item_id] ?? { encryptedContent: undefined, summaryParts: {} }
+  if (event.summary_index === 0) {
+    if (state.reasoningItems[event.item_id]) return [state, NO_EVENTS]
+    const events: LLMEvent[] = []
+    return [
+      {
+        ...state,
+        lifecycle: Lifecycle.reasoningStart(
+          state.lifecycle,
+          events,
+          `${event.item_id}:0`,
+          providerMetadata(state, { itemId: event.item_id, reasoningEncryptedContent: null }),
+        ),
+        reasoningItems: {
+          ...state.reasoningItems,
+          [event.item_id]: { ...item, summaryParts: { 0: "active" } },
+        },
+      },
+      events,
+    ]
+  }

  const events: LLMEvent[] = []
  const closed = Object.entries(item.summaryParts)
@@ -938,7 +931,7 @@ const onFunctionCallArgumentsDelta = Effect.fn("OpenResponses.onFunctionCallArgu
  state: ParserState,
  event: Event,
 ) {
-  if (!event.item_id || !event.delta || !state.tools[event.item_id]) return [state, NO_EVENTS] satisfies StepResult
+  if (!event.item_id || !event.delta) return [state, NO_EVENTS] satisfies StepResult
  const result = ToolStream.appendExisting(
    state.id,
    state.tools,
@@ -958,7 +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)
@@ -1066,45 +1059,32 @@ 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
      : typeof event.status_code === "number"
        ? event.status_code
        : undefined
-  const reason =
-    event.type === "error" &&
-    event.error === undefined &&
-    event.response === undefined &&
-    summary === undefined &&
-    status === undefined
-      ? new ProviderInternalReason({ message })
-      : classifyProviderFailure({ message, code, status, rawBody: body })
  return new AIError({
    module: id,
    method: "stream",
-    body,
-    reason,
+    reason: classifyProviderFailure({ message, code, status }),
  })
 }

@@ -1120,19 +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))
@@ -1146,10 +1128,7 @@ export const step = (state: ParserState, event: Event) => {
      return ProviderShared.eventError(state.id, `${event.type} message is missing id`)
    return Effect.succeed(onOutputItemAdded(state, event))
  }
-  if (event.type === "response.function_call_arguments.delta")
-    return event.item_id
-      ? onFunctionCallArgumentsDelta(state, event)
-      : ProviderShared.eventError(state.id, `${event.type} is missing item_id`)
+  if (event.type === "response.function_call_arguments.delta") return onFunctionCallArgumentsDelta(state, event)
  if (event.type === "response.output_item.done") {
    if (event.item?.type === "message" && !event.item.id)
      return ProviderShared.eventError(state.id, `${event.type} message is missing id`)
@@ -1180,11 +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: {
@@ -156,9 +156,6 @@ const OpenAIChatUsage = Schema.StructWithRest(
    prompt_tokens: optionalNull(Schema.Number),
    completion_tokens: optionalNull(Schema.Number),
    total_tokens: optionalNull(Schema.Number),
-    // Zai reports cache hits as top-level `cached_tokens`; DeepSeek uses `prompt_cache_hit_tokens`.
-    cached_tokens: optionalNull(Schema.Number),
-    prompt_cache_hit_tokens: optionalNull(Schema.Number),
    prompt_tokens_details: optionalNull(
      Schema.StructWithRest(
        Schema.Struct({
@@ -207,16 +204,11 @@ const OpenAIChatDelta = Schema.StructWithRest(
  [Schema.Record(Schema.String, Schema.Unknown)],
 )

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

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

-// Anthropic via LiteLLM and Amazon Bedrock require `tools` to be present
-// whenever the conversation history contains tool calls/results. Send an
-// explicit empty array when we have history but no active tools.
-const hasToolHistory = (messages: ReadonlyArray<LLMRequest["messages"][number]>) => {
-  for (const message of messages) {
-    if (message.role === "tool") return true
-    if (message.role === "assistant" && message.content.some((part) => part.type === "tool-call")) return true
-  }
-  return false
-}
-
 const lowerOptions = (request: LLMRequest) => {
  const options = OpenAIOptions.resolve(request)
-  const cacheKey = ProviderShared.clampPromptCacheKey(request.promptCacheKey)
  return {
    ...(options.store !== undefined ? { store: options.store } : {}),
-    ...(cacheKey ? { prompt_cache_key: cacheKey } : {}),
+    ...(request.promptCacheKey ? { prompt_cache_key: request.promptCacheKey } : {}),
    ...(options.reasoningEffort ? { reasoning_effort: options.reasoningEffort } : {}),
  }
 }
@@ -552,15 +532,12 @@ export const fromRequest = Effect.fn("OpenAIChat.fromRequest")(function* (
  const generation = request.generation
  const toolSchemaCompatibility = request.model.compatibility?.toolSchema
  const maxTokensField = request.model.compatibility?.maxTokensField ?? "max_tokens"
-  const hasHistory = hasToolHistory(request.messages)
  return {
    model: request.model.id,
    messages: yield* lowerMessages(request, options),
    tools:
      request.tools.length === 0
-        ? hasHistory
-          ? []
-          : undefined
+        ? undefined
        : request.tools.map((tool) =>
            lowerTool(
              tool,
@@ -604,18 +581,11 @@ const mapFinishReason = (reason: string | null | undefined): FinishReason => {
 // total) with a `reasoning_tokens` subset. We pass the inclusive totals
 // through and derive the non-cached breakdown so the `AI.Usage` contract is
 // satisfied on both sides.
-// Providers differ on cache-hit location: OpenAI uses
-// `prompt_tokens_details.cached_tokens`, DeepSeek uses
-// `prompt_cache_hit_tokens`, and Zai uses top-level `cached_tokens`.
 const mapUsage = (usage: OpenAIChatEvent["usage"]): Usage | undefined => {
  if (!usage) return undefined
  const input = usage.prompt_tokens ?? undefined
  const output = usage.completion_tokens ?? undefined
-  const cached =
-    (usage.prompt_tokens_details?.cached_tokens ??
-      (usage as { prompt_cache_hit_tokens?: number | null }).prompt_cache_hit_tokens ??
-      (usage as { cached_tokens?: number | null }).cached_tokens ??
-      undefined) as number | undefined
+  const cached = usage.prompt_tokens_details?.cached_tokens ?? undefined
  const cacheWrite = usage.prompt_tokens_details?.cache_write_tokens ?? undefined
  const reasoning = usage.completion_tokens_details?.reasoning_tokens ?? undefined
  const nonCached = ProviderShared.subtractTokens(input, ProviderShared.sumTokens(cached, cacheWrite))
@@ -721,11 +691,8 @@ const step = (state: ParserState, event: OpenAIChatEvent) =>
        }),
      })
    const events: LLMEvent[] = []
+    const usage = mapUsage(event.usage) ?? state.usage
    const choice = event.choices?.[0]
-    // Moonshot (and a few other OpenAI-compatible providers) attach usage to
-    // `choice.usage` instead of the top-level `usage` field.
-    const choiceUsage = (choice as unknown as { usage?: OpenAIChatEvent["usage"] })?.usage
-    const usage = mapUsage(event.usage) ?? (choiceUsage ? mapUsage(choiceUsage) : undefined) ?? state.usage
    const rawFinishReason = choice?.finish_reason
    const finishReason =
      rawFinishReason !== undefined && rawFinishReason !== null
@@ -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
@@ -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(
@@ -126,21 +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_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 }),
-  },
-} 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")
@@ -151,8 +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)
 }

@@ -174,7 +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,
@@ -24,17 +24,6 @@ export const JsonObject = Schema.Record(Schema.String, Schema.Unknown)
 export const optionalArray = <const S extends Schema.Top>(schema: S) => Schema.optional(Schema.Array(schema))
 export const optionalNull = <const S extends Schema.Top>(schema: S) => Schema.optional(Schema.NullOr(schema))

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

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

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

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

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

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

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

 const gemini = (schema: JsonSchema): JsonSchema => GeminiToolSchema.convert(schema) ?? {}
@@ -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"
@@ -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)

@@ -38,23 +38,13 @@ export type Settings = ProviderPackage.Settings &

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

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

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

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

 export type OpenAIProviderOptionsInput = OpenAIOptionsInput

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

 export const profile = OpenAICompatibleProfiles.profiles.openrouter
 export const id = ProviderID.make(profile.provider)
@@ -115,12 +115,11 @@ export const protocol = Protocol.make({
              reasoning_details: reasoningDetails,
            }
          })
-          const cacheKey = ProviderShared.clampPromptCacheKey(request.promptCacheKey)
          return {
            ...body,
            messages,
            ...bodyOptions(request.providerOptions),
-            ...(cacheKey ? { prompt_cache_key: cacheKey } : {}),
+            ...(request.promptCacheKey ? { prompt_cache_key: request.promptCacheKey } : {}),
          } as OpenRouterBody
        }),
      ),
@@ -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,
@@ -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

@@ -255,7 +255,6 @@ export namespace ToolDefinition {
 export class ToolChoice extends Schema.Class<ToolChoice>("LLM.ToolChoice")({
  type: Schema.Literals(["auto", "none", "required", "tool"]),
  name: Schema.optional(Schema.String),
-  disableParallelToolUse: Schema.optional(Schema.Boolean),
 }) {}

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

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

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

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

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

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

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

-  it.effect("strips function call ids Vertex does not accept from lowered bodies", () =>
-    Effect.gen(function* () {
-      const prepared = yield* compileRequest(
-        LLM.request({
-          model: GoogleVertex.configure({
-            accessToken: "vertex-token",
-            project: "vertex-project",
-          }).model("gemini-3.5-flash"),
-          messages: [
-            Message.assistant([
-              ToolCallPart.make({
-                id: "call_1",
-                name: "lookup",
-                input: { query: "weather" },
-                providerMetadata: { google: { functionCallId: "provider_call_1" } },
-              }),
-            ]),
-            Message.tool({
-              id: "call_1",
-              name: "lookup",
-              result: "sunny",
-              resultType: "text",
-              providerMetadata: { google: { functionCallId: "provider_call_1" } },
-            }),
-          ],
-        }),
-      )
-
-      expect(JSON.stringify(prepared.body.contents)).not.toContain('"id"')
-      expect(prepared.body.contents).toMatchObject([
-        { role: "model", parts: [{ functionCall: { id: undefined, name: "lookup", args: { query: "weather" } } }] },
-        {
-          role: "user",
-          parts: [
-            {
-              functionResponse: {
-                id: undefined,
-                name: "lookup",
-                response: { name: "lookup", content: "sunny" },
-              },
-            },
-          ],
-        },
-      ])
-    }),
-  )
-
  it.effect("projects Anthropic Messages onto the Vertex raw-predict API", () =>
    Effect.gen(function* () {
      const model = GoogleVertexMessages.configure({
@@ -237,7 +190,6 @@ describe("Google Vertex providers", () => {
              })
              return input.respond(
                sseEvents(
-                  { type: "response.output_item.added", item: { type: "message", id: "msg_1" } },
                  { type: "response.output_text.delta", item_id: "msg_1", delta: "Hello." },
                  { type: "response.completed", response: { id: "resp_1" } },
                ),
@@ -342,7 +342,6 @@ describe("OpenAI Chat route", () => {
          },
          { role: "tool", tool_call_id: "call_1", content: encodeJson({ forecast: "sunny" }) },
        ],
-        tools: [],
        stream: true,
        stream_options: { include_usage: true },
      })
@@ -78,45 +78,6 @@ describe("Open Responses-compatible route", () => {
    }),
  )

-  it.effect("uses data URLs for embedded PDF messages and tool results", () =>
-    Effect.gen(function* () {
-      const model = configure({
-        apiKey: "test-key",
-        baseURL: "https://responses.example.test/v1",
-        provider: "example",
-      }).model("example-model")
-      const pdf = "data:application/pdf;base64,JVBERi0xLjQ="
-      const prepared = yield* compileRequest(
-        LLM.request({
-          model,
-          messages: [
-            Message.user([{ type: "media", mediaType: "application/pdf", data: pdf, filename: "input.pdf" }]),
-            Message.assistant({ type: "tool-call", id: "call_1", name: "read", input: {} }),
-            Message.tool({
-              id: "call_1",
-              name: "read",
-              resultType: "content",
-              result: [{ type: "file", uri: pdf, mime: "application/pdf", name: "result.pdf" }],
-            }),
-          ],
-        }),
-      )
-
-      expect(prepared.body.input).toEqual([
-        {
-          role: "user",
-          content: [{ type: "input_file", filename: "input.pdf", file_data: pdf }],
-        },
-        { type: "function_call", call_id: "call_1", name: "read", arguments: "{}" },
-        {
-          type: "function_call_output",
-          call_id: "call_1",
-          output: [{ type: "input_file", filename: "result.pdf", file_data: pdf }],
-        },
-      ])
-    }),
-  )
-
  it.effect("rejects OpenAI-native tools", () =>
    Effect.gen(function* () {
      const model = configure({
@@ -132,7 +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",
@@ -152,14 +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." }] }],
      })
    }),
  )
@@ -233,7 +187,6 @@ describe("Open Responses-compatible route", () => {
          streamOptions: { includeObfuscation: false },
          topLogprobs: 3,
          truncation: "auto",
-          serviceTier: "provider-tier",
          allowedTools: { toolNames: ["lookup"] },
          maxToolCalls: 2,
          parallelToolCalls: false,
@@ -258,7 +211,6 @@ describe("Open Responses-compatible route", () => {
        presence_penalty: 0.2,
        frequency_penalty: -0.1,
        truncation: "auto",
-        service_tier: "provider-tier",
        tool_choice: {
          type: "allowed_tools",
          mode: "auto",
@@ -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,
@@ -188,15 +188,17 @@ describe("OpenAI Responses route", () => {
    }),
  )

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

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

-  it.effect("preserves function schemas", () =>
+  it.effect("flattens top-level object unions in function schemas", () =>
    Effect.gen(function* () {
      const prepared = yield* compileRequest(
        LLMRequest.update(request, {
@@ -236,22 +238,13 @@ describe("OpenAI Responses route", () => {
          strict: false,
          parameters: {
            type: "object",
-            anyOf: [
-              {
-                type: "object",
-                properties: {
-                  path: { type: "string" },
-                  reference: { anyOf: [{ type: "string" }, { type: "null" }] },
-                  limit: { type: "integer", maximum: 2000 },
-                },
-                required: ["path"],
-              },
-              {
-                type: "object",
-                properties: { resource: { type: "string" }, limit: { type: "integer", maximum: 51200 } },
-                required: ["resource"],
-              },
-            ],
+            properties: {
+              path: { type: "string" },
+              reference: { type: "string" },
+              limit: { type: "integer", maximum: 2000 },
+              resource: { type: "string" },
+            },
+            additionalProperties: false,
          },
        },
      ])
@@ -321,10 +314,6 @@ describe("OpenAI Responses route", () => {
              }),
            messages: Stream.fromArray([
              ProviderShared.encodeJson({ type: "response.created", response: { id: "resp_ws" } }),
-              ProviderShared.encodeJson({
-                type: "response.output_item.added",
-                item: { type: "message", id: "msg_1" },
-              }),
              ProviderShared.encodeJson({ type: "response.output_text.delta", item_id: "msg_1", delta: "Hi" }),
              ProviderShared.encodeJson({ type: "response.completed", response: { id: "resp_ws" } }),
            ]),
@@ -405,38 +394,6 @@ describe("OpenAI Responses route", () => {
    }),
  )

-  it.effect("tolerates keepalive frames before response.created", () =>
-    Effect.gen(function* () {
-      const webSocket = WebSocketTransport.makeDirect({
-        open: () =>
-          Effect.succeed({
-            sendText: () => Effect.void,
-            messages: Stream.fromArray([
-              ProviderShared.encodeJson({ type: "keepalive", sequence_number: 0 }),
-              ProviderShared.encodeJson({ type: "response.created", response: { id: "resp_alive" } }),
-              ProviderShared.encodeJson({
-                type: "response.completed",
-                response: { id: "resp_alive", usage: { input_tokens: 1, output_tokens: 1 } },
-              }),
-            ]),
-            close: Effect.void,
-          }),
-      })
-      const deps = Layer.succeed(
-        RequestExecutor.Service,
-        RequestExecutor.Service.of({ execute: () => Effect.die("unexpected HTTP request") }),
-      )
-      const model = OpenAI.configure({ baseURL: "https://api.openai.test/v1/", apiKey: "test" }).responses(
-        "gpt-4.1-mini",
-      )
-
-      const response = yield* LLMClient.generate(LLM.request({ model, prompt: "hi" }), { webSocket }).pipe(
-        Effect.provide(LLMClient.layer.pipe(Layer.provide(deps))),
-      )
-      expect(response.finishReason?.normalized).toBe("stop")
-    }),
-  )
-
  it.effect("continues a tool call with only the new tool output", () =>
    Effect.gen(function* () {
      const firstRequest = {
@@ -1348,7 +1305,7 @@ describe("OpenAI Responses route", () => {
    }),
  )

-  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({
@@ -1376,7 +1333,8 @@ describe("OpenAI Responses route", () => {
        {
          type: "input_file",
          filename: "report.pdf",
-          file_data: "data:application/pdf;base64,JVBERi0xLjQ=",
+          file_data: "JVBERi0xLjQ=",
+          mime_type: "application/pdf",
        },
      ])
    }),
@@ -1406,60 +1364,6 @@ describe("OpenAI Responses route", () => {
    }),
  )

-  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" },
-      ])
-    }),
-  )
-
  it.effect("prepares the composed native continuation request", () =>
    Effect.gen(function* () {
      const prepared = yield* compileRequest(
@@ -1669,7 +1573,6 @@ describe("OpenAI Responses route", () => {
  it.effect("parses text and usage stream fixtures", () =>
    Effect.gen(function* () {
      const body = sseEvents(
-        { type: "response.output_item.added", item: { type: "message", id: "msg_1" } },
        { type: "response.output_text.delta", item_id: "msg_1", delta: "Hello" },
        { type: "response.output_text.delta", item_id: "msg_1", delta: "!" },
        {
@@ -1931,67 +1834,6 @@ describe("OpenAI Responses route", () => {
    }),
  )

-  it.effect("ignores deltas without a matching output item", () =>
-    Effect.gen(function* () {
-      const response = yield* LLMClient.generate(request).pipe(
-        Effect.provide(
-          fixedResponse(
-            sseEvents(
-              { type: "response.output_text.delta", item_id: "msg_missing", delta: "orphaned text" },
-              { type: "response.refusal.delta", item_id: "refusal_missing", delta: "orphaned refusal" },
-              {
-                type: "response.reasoning_summary_text.delta",
-                item_id: "rs_missing",
-                summary_index: 0,
-                delta: "orphaned reasoning",
-              },
-              {
-                type: "response.reasoning_summary_part.added",
-                item_id: "rs_still_missing",
-                summary_index: 0,
-              },
-              {
-                type: "response.reasoning_summary_text.delta",
-                item_id: "rs_still_missing",
-                summary_index: 0,
-                delta: "still orphaned reasoning",
-              },
-              {
-                type: "response.function_call_arguments.delta",
-                item_id: "fc_missing",
-                delta: '{"orphaned":true}',
-              },
-              { type: "response.completed", response: { id: "resp_1" } },
-            ),
-          ),
-        ),
-      )
-
-      expect(response.text).toBe("")
-      expect(response.message.content).toEqual([])
-      expect(response.events.some(LLMEvent.is.toolCall)).toBeFalse()
-    }),
-  )
-
-  it.effect("rejects function argument deltas without the spec-required item id", () =>
-    Effect.gen(function* () {
-      const error = yield* LLMClient.generate(request).pipe(
-        Effect.provide(
-          fixedResponse(
-            sseEvents(
-              { type: "response.function_call_arguments.delta", delta: "{}" },
-              { type: "response.completed", response: { id: "resp_1" } },
-            ),
-          ),
-        ),
-        Effect.flip,
-      )
-
-      expect(error.reason._tag).toBe("InvalidProviderOutput")
-      expect(error.message).toContain("response.function_call_arguments.delta is missing item_id")
-    }),
-  )
-
  it.effect("rejects reasoning events without the spec-required item id", () =>
    Effect.gen(function* () {
      const events = [
@@ -2047,10 +1889,8 @@ describe("OpenAI Responses route", () => {
        Effect.provide(
          fixedResponse(
            sseEvents(
-              { type: "response.output_item.added", item: { type: "message", id: "msg_1" } },
              { type: "response.output_text.delta", item_id: "msg_1", delta: "First" },
-              { type: "response.output_item.done", item: { type: "message", id: "msg_1" } },
-              { type: "response.output_item.added", item: { type: "message", id: "msg_2" } },
+              { type: "response.output_text.done", item_id: "msg_1" },
              { type: "response.output_text.delta", item_id: "msg_2", delta: "Second" },
              { type: "response.output_item.done", item: { type: "message", id: "msg_2" } },
              { type: "response.completed", response: { id: "resp_1" } },
@@ -2061,10 +1901,10 @@ describe("OpenAI Responses route", () => {

      expect(response.events.filter((event) => event.type.startsWith("text-"))).toEqual([
        { type: "text-start", id: "msg_1", providerMetadata: { openai: { itemId: "msg_1" } } },
-        { type: "text-delta", id: "msg_1", text: "First", providerMetadata: undefined },
-        { type: "text-end", id: "msg_1", providerMetadata: { openai: { itemId: "msg_1" } } },
+        { type: "text-delta", id: "msg_1", text: "First" },
+        { type: "text-end", id: "msg_1", providerMetadata: undefined },
        { type: "text-start", id: "msg_2", providerMetadata: { openai: { itemId: "msg_2" } } },
-        { type: "text-delta", id: "msg_2", text: "Second", providerMetadata: undefined },
+        { type: "text-delta", id: "msg_2", text: "Second" },
        { type: "text-end", id: "msg_2", providerMetadata: { openai: { itemId: "msg_2" } } },
      ])
    }),
@@ -2073,9 +1913,7 @@ describe("OpenAI Responses route", () => {
  it.effect("parses reasoning summary stream fixtures", () =>
    Effect.gen(function* () {
      const body = sseEvents(
-        { type: "response.output_item.added", item: { type: "reasoning", id: "rs_1" } },
        { type: "response.reasoning_summary_text.delta", item_id: "rs_1", delta: "thinking" },
-        { type: "response.output_item.added", item: { type: "message", id: "msg_1" } },
        { type: "response.output_text.delta", item_id: "msg_1", delta: "Hello" },
        { type: "response.reasoning_summary_text.done", item_id: "rs_1" },
        { type: "response.completed", response: { id: "resp_1" } },
@@ -2087,22 +1925,18 @@ describe("OpenAI Responses route", () => {
      expect(response.text).toBe("Hello")
      expect(response.events).toMatchObject([
        { type: "step-start", index: 0 },
-        { type: "reasoning-start", id: "rs_1:0" },
-        { type: "reasoning-delta", id: "rs_1:0", text: "thinking" },
+        { type: "reasoning-start", id: "rs_1" },
+        { type: "reasoning-delta", id: "rs_1", text: "thinking" },
        { type: "text-start", id: "msg_1" },
        { type: "text-delta", id: "msg_1", text: "Hello" },
-        { type: "reasoning-end", id: "rs_1:0" },
+        { type: "reasoning-end", id: "rs_1" },
        { type: "text-end", id: "msg_1" },
        { type: "step-finish", index: 0, reason: { normalized: "stop", raw: undefined } },
        { type: "finish", reason: { normalized: "stop", raw: undefined } },
      ])
      expect(response.events.filter((event) => event.type === "finish")).toHaveLength(1)
      expect(response.message.content).toEqual([
-        {
-          type: "reasoning",
-          text: "thinking",
-          providerMetadata: { openai: { itemId: "rs_1", reasoningEncryptedContent: null } },
-        },
+        { type: "reasoning", text: "thinking" },
        { type: "text", text: "Hello", providerMetadata: { openai: { itemId: "msg_1" } } },
      ])
    }),
@@ -2114,7 +1948,6 @@ describe("OpenAI Responses route", () => {
        Effect.provide(
          fixedResponse(
            sseEvents(
-              { type: "response.output_item.added", item: { type: "reasoning", id: "rs_1" } },
              { type: "response.reasoning_summary_text.delta", item_id: "rs_1", delta: "thinking" },
              {
                type: "response.output_item.done",
@@ -2134,7 +1967,7 @@ describe("OpenAI Responses route", () => {
      expect(response.events).toContainEqual(
        expect.objectContaining({
          type: "reasoning-end",
-          id: "rs_1:0",
+          id: "rs_1",
          providerMetadata: { openai: { itemId: "rs_1", reasoningEncryptedContent: "encrypted-state" } },
        }),
      )
@@ -2275,7 +2108,6 @@ describe("OpenAI Responses route", () => {
              })
              return input.respond(
                sseEvents(
-                  { type: "response.output_item.added", item: { type: "message", id: "msg_1" } },
                  { type: "response.output_text.delta", item_id: "msg_1", delta: "Parser now round-trips reasoning." },
                  { type: "response.completed", response: { id: "resp_1" } },
                ),
@@ -2387,44 +2219,6 @@ describe("OpenAI Responses route", () => {
    }),
  )

-  it.effect("continues stateless hosted tool results with their text form", () =>
-    Effect.gen(function* () {
-      const prepared = yield* compileRequest(
-        LLM.request({
-          model,
-          messages: [
-            Message.user("Search."),
-            Message.assistant([
-              ToolCallPart.make({
-                id: "ws_1",
-                name: "web_search",
-                input: { query: "effect 4" },
-                providerExecuted: true,
-                providerMetadata: { openai: { itemId: "ws_1" } },
-              }),
-              {
-                type: "tool-result",
-                id: "ws_1",
-                name: "web_search",
-                result: { type: "json", value: { type: "web_search_call", id: "ws_1", status: "completed" } },
-                providerExecuted: true,
-                providerMetadata: { openai: { itemId: "ws_1" } },
-              },
-            ]),
-            Message.user("Continue."),
-          ],
-          providerOptions: { store: false },
-        }),
-      )
-
-      expect(prepared.body.input).toEqual([
-        { role: "user", content: [{ type: "input_text", text: "Search." }] },
-        { role: "user", content: [{ type: "input_text", text: '{"type":"web_search_call","id":"ws_1","status":"completed"}' }] },
-        { role: "user", content: [{ type: "input_text", text: "Continue." }] },
-      ])
-    }),
-  )
-
  it.effect("continues stateless hosted image generation with the generated image", () =>
    Effect.gen(function* () {
      const imageTool = OpenAI.imageGeneration({ action: "edit" })
@@ -2805,47 +2599,6 @@ describe("OpenAI Responses route", () => {
    }),
  )

-  it.effect("decodes computer_call as provider-executed tool-call + tool-result", () =>
-    Effect.gen(function* () {
-      const item = {
-        type: "computer_call",
-        id: "computer_1",
-        call_id: "call_1",
-        status: "completed",
-        action: { type: "click", x: 100, y: 200 },
-      }
-      const response = yield* LLMClient.generate(request).pipe(
-        Effect.provide(
-          fixedResponse(
-            sseEvents(
-              { type: "response.output_item.done", item },
-              { type: "response.completed", response: { usage: { input_tokens: 5, output_tokens: 1 } } },
-            ),
-          ),
-        ),
-      )
-
-      expect(response.events.filter((event) => event.type === "tool-call" || event.type === "tool-result")).toEqual([
-        {
-          type: "tool-call",
-          id: "computer_1",
-          name: "computer_use",
-          input: { type: "click", x: 100, y: 200 },
-          providerExecuted: true,
-          providerMetadata: { openai: { itemId: "computer_1" } },
-        },
-        {
-          type: "tool-result",
-          id: "computer_1",
-          name: "computer_use",
-          result: { type: "json", value: item },
-          providerExecuted: true,
-          providerMetadata: { openai: { itemId: "computer_1" } },
-        },
-      ])
-    }),
-  )
-
  it.effect("decodes image generation output as image content", () =>
    Effect.gen(function* () {
      const item = {
@@ -2967,7 +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({
@@ -2990,7 +2743,8 @@ describe("OpenAI Responses route", () => {
            {
              type: "input_file",
              filename: "report.pdf",
-              file_data: "data:application/pdf;base64,JVBERi0xLjQ=",
+              file_data: "JVBERi0xLjQ=",
+              mime_type: "application/pdf",
            },
          ],
        },
@@ -3023,37 +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(
@@ -3210,42 +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("classifies a detail-free error event as a transient provider failure", () =>
+  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", sequence_number: 2 }))),
+        Effect.provide(fixedResponse(sseEvents({ type: "error" }))),
        Effect.flip,
      )

-      expect(error.reason).toMatchObject({ _tag: "ProviderInternal" })
-      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" })
    }),
  )

@@ -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,
@@ -1,81 +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.output_item.added",
-                item: { type: "reasoning", id: "reasoning_1" },
-              },
-              { 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,
-      })
-    }),
-  )
-})
@@ -191,7 +191,7 @@ describe("LLMClient tools", () => {
        success: Schema.String,
        execute: () => Effect.succeed("hello"),
      })
-      const providerMetadata = { google: { thoughtSignature: "provider_sig" } }
+      const providerMetadata = { google: { functionCallId: "provider_call" } }
      const dispatched = yield* ToolRuntime.dispatch(
        { tool },
        LLMEvent.toolCall({ id: "call_1", name: "tool", input: {}, providerMetadata }),
@@ -50,7 +50,32 @@ describe("tool schema projections", () => {
    })
  })

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

      expect(prepared.body.tools?.[0]?.function.parameters).toEqual({
        type: "object",
-        anyOf: [
-          {
-            type: "object",
-            properties: {
-              tuple: { type: "array", items: { anyOf: [{ type: "string" }, { type: "number" }] } },
-              linked: { $ref: "#/$defs/Linked" },
-            },
-          },
-        ],
+        properties: {
+          tuple: { type: "array", items: { anyOf: [{ type: "string" }, { type: "number" }] } },
+          linked: { $ref: "#/$defs/Linked" },
+        },
+        additionalProperties: false,
      })
    }),
  )
@@ -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.
@@ -259,22 +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)
 }
@@ -899,26 +883,8 @@ function provider() {
        name: "OpenCode",
        models: { "claude-opus-4-6": { id: "claude-opus-4-6", name: "Claude Opus 4.6", limit: { context: 200_000 } } },
      },
-      {
-        id: "company-gateway",
-        name: "Company Gateway",
-        models: {
-          "fast-nano": {
-            id: "fast-nano",
-            api: { id: "openai/gpt-5.4-nano" },
-            name: "GPT-5.4 nano",
-            limit: { context: 128_000 },
-          },
-          "long-context": {
-            id: "long-context",
-            api: { id: "company/long-context" },
-            name: "Company Gateway Extra Long Context Model for Narrow Timeline Layouts",
-            limit: { context: 128_000 },
-          },
-        },
-      },
    ],
-    connected: ["opencode", "company-gateway"],
+    connected: ["opencode"],
    default: { providerID: "opencode", modelID: "claude-opus-4-6" },
  }
 }
@@ -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)
@@ -1,106 +0,0 @@
-import { expect, test } from "@playwright/test"
-import { fixture, pageMessages } from "../smoke/session-timeline.fixture"
-import { mockOpenCodeServer } from "../utils/mock-server"
-
-test("renames, exports, and deletes a home session from its context menu", async ({ page }) => {
-  const sessions = fixture.sessions.map((session) => ({ ...session }))
-  await mockOpenCodeServer(page, {
-    sessions,
-    provider: fixture.provider,
-    directory: fixture.directory,
-    project: fixture.project,
-    pageMessages,
-  })
-  await page.route("**/api/session/*/rename", async (route) => {
-    const sessionID = new URL(route.request().url()).pathname.split("/").at(-2)
-    const session = sessions.find((item) => item.id === sessionID)
-    const payload: unknown = route.request().postDataJSON()
-    if (!payload || typeof payload !== "object" || !("title" in payload) || typeof payload.title !== "string")
-      throw new Error("Invalid rename payload")
-    if (session) session.title = payload.title
-    await route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
-  })
-  await page.addInitScript((directory) => {
-    localStorage.setItem(
-      "opencode.global.dat:server",
-      JSON.stringify({
-        projects: { local: [{ worktree: directory, expanded: true }] },
-        lastProject: { local: directory },
-      }),
-    )
-  }, fixture.directory)
-
-  await page.goto("/")
-  const row = page.locator('[data-component="home-session-row"]').filter({ hasText: fixture.expected.targetTitle })
-  await expect(row).toBeVisible()
-  const container = page.locator(`[data-component="home-session-row-container"][data-session-id="${fixture.targetID}"]`)
-  const titleBox = await container.locator('[data-component="home-session-title"]').boundingBox()
-  const avatarBox = await container.locator('[data-component="project-avatar-v2"]').boundingBox()
-  await expect(container.getByRole("button", { name: "More options" })).toHaveCount(0)
-
-  await row.focus()
-  await row.press("Shift+F10")
-  await expect(page.getByRole("menuitem", { name: "Rename" })).toBeVisible()
-  await page.keyboard.press("Escape")
-  await expect(page.getByRole("menuitem", { name: "Rename" })).toBeHidden()
-  await expect(row).toBeFocused()
-
-  const rowBox = await row.boundingBox()
-  await row.click({ button: "right", position: { x: 48, y: 12 } })
-  await expect(page).toHaveURL("/")
-  await expect(page.getByRole("menuitem", { name: "Rename" })).toBeVisible()
-  await expect(page.getByRole("menuitem", { name: "Export..." })).toBeVisible()
-  await expect(page.getByRole("menuitem", { name: "Delete..." })).toBeVisible()
-  const menuBox = await page.locator('[data-component="menu-v2-content"]').boundingBox()
-  expect(Math.abs((menuBox?.x ?? 0) - (rowBox?.x ?? 0) - 48)).toBeLessThan(4)
-
-  await page.getByRole("menuitem", { name: "Rename" }).click()
-  const title = page.locator('[data-component="home-session-rename"]')
-  await expect(title).toBeFocused()
-  await expect(title).toHaveValue(fixture.expected.targetTitle)
-  const editorBox = await title.boundingBox()
-  const editingAvatarBox = await container.locator('[data-component="project-avatar-v2"]').boundingBox()
-  expect(editorBox?.x).toBe(titleBox?.x)
-  expect(editingAvatarBox).toEqual(avatarBox)
-  expect(
-    await title.evaluate((element) => ({
-      outline: getComputedStyle(element).outlineStyle,
-      shadow: getComputedStyle(element).boxShadow,
-    })),
-  ).toEqual({ outline: "none", shadow: "none" })
-  expect(await container.evaluate((element) => getComputedStyle(element).outlineStyle)).toBe("none")
-  await title.fill("Renamed from Home")
-  const renamed = page.waitForRequest(
-    (request) => request.method() === "POST" && new URL(request.url()).pathname.endsWith("/rename"),
-  )
-  await title.press("Enter")
-  expect((await renamed).postDataJSON()).toEqual({ title: "Renamed from Home" })
-  let renamedRow = page.locator('[data-component="home-session-row"]').filter({ hasText: "Renamed from Home" })
-  await expect(renamedRow).toBeVisible()
-
-  await renamedRow.click()
-  await expect(page).toHaveURL(new RegExp(`/session/${fixture.targetID}$`))
-  await expect(page.locator('[data-slot="titlebar-tabs"] a').filter({ hasText: "Renamed from Home" })).toBeVisible()
-  await page.getByRole("button", { name: "Home" }).click()
-  await expect(page).toHaveURL("/")
-  renamedRow = page.locator('[data-component="home-session-row"]').filter({ hasText: "Renamed from Home" })
-  await expect(renamedRow).toBeVisible()
-
-  await renamedRow.click({ button: "right" })
-  const download = page.waitForEvent("download")
-  const exportItem = page.getByRole("menuitem", { name: "Export..." })
-  await exportItem.click()
-  expect((await download).suggestedFilename()).toBe("renamed-from-home.json")
-  await expect(exportItem).toBeHidden()
-
-  await renamedRow.click({ button: "right" })
-  await page.getByRole("menuitem", { name: "Delete..." }).click()
-  const dialog = page.getByRole("dialog")
-  await expect(dialog).toContainText('Delete session "Renamed from Home"?')
-  const removed = page.waitForRequest(
-    (request) => request.method() === "DELETE" && new URL(request.url()).pathname.endsWith(`/${fixture.targetID}`),
-  )
-  await dialog.getByRole("button", { name: "Delete session" }).click()
-  await removed
-  await expect(renamedRow).toBeHidden()
-})
@@ -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")
 })
@@ -179,7 +179,6 @@ async function expectMountedTree(page: Page, total: number) {
 }

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

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

-async function expectPanelGap(page: Page, expected: number) {
-  await expect
-    .poll(() => {
-      return page.evaluate(() => {
-        const review = document.querySelector<HTMLElement>("#review-panel")?.getBoundingClientRect()
-        const terminal = document.querySelector<HTMLElement>("#terminal-panel")?.getBoundingClientRect()
-        if (!review || !terminal) return Number.NEGATIVE_INFINITY
-        const gap = terminal.top - review.bottom
-        return gap
-      })
-    })
-    .toBeGreaterThanOrEqual(expected - 1)
-  await expect
-    .poll(() => {
-      return page.evaluate(() => {
-        const review = document.querySelector<HTMLElement>("#review-panel")?.getBoundingClientRect()
-        const terminal = document.querySelector<HTMLElement>("#terminal-panel")?.getBoundingClientRect()
-        if (!review || !terminal) return Number.POSITIVE_INFINITY
-        return terminal.top - review.bottom
-      })
-    })
-    .toBeLessThanOrEqual(expected + 1)
-}
-
 function base64Encode(value: string) {
  return Buffer.from(value, "utf8").toString("base64").replace(/\+/g, "-").replace(/\//g, "_").replace(/=/g, "")
 }
@@ -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",
@@ -3,9 +3,9 @@ import { createTwoFilesPatch } from "diff"
 import {
  assistantMessage,
  setupTimeline,
+  textPart,
  toolPart,
  userMessage,
-  userText,
 } from "../performance/timeline-stability/fixture"

 test("renders completed write content", async ({ page }) => {
@@ -82,9 +82,9 @@ test("keeps an expanded file diff header at the same viewport position", async (
  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, {
+  const timeline = await setupTimeline(page, {
    messages: [
-      userMessage([userText("Preceding context ".repeat(120))]),
+      userMessage(),
      assistantMessage([
        toolPart(
          id,
@@ -105,6 +105,7 @@ test("keeps an expanded file diff header at the same viewport position", async (
            },
          },
        ),
+        textPart("prt_after_anchored_patch", "The diff is ready.\n\n".repeat(4)),
      ]),
    ],
    viewport: { width: 1200, height: 600 },
@@ -112,21 +113,7 @@ test("keeps an expanded file diff header at the same viewport position", async (

  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
  })
@@ -134,28 +121,11 @@ test("keeps an expanded file diff header at the same viewport position", async (
  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)
+  await trigger.dispatchEvent("wheel", { deltaY: -1, deltaMode: 0 })
+  await trigger.dispatchEvent("pointerdown")
  const y = await trigger.evaluate((element) => element.getBoundingClientRect().y)
-  const collapsedHeight = await row.evaluate((element) => element.getBoundingClientRect().height)
-  await trigger.click()
+  await trigger.dispatchEvent("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)
@@ -163,10 +133,9 @@ test("keeps an expanded file diff header at the same viewport position", async (
  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)
+  await timeline.settle(40)
  const scrolled = await scroller.evaluate((element, initial) => element.scrollTop - initial, scrollTop)
+  expect(scrolled).toBeGreaterThan(50)
  expect(scrolled).toBeLessThan(400)

  const expandedY = await trigger.evaluate((element) => element.getBoundingClientRect().y)
@@ -181,16 +150,6 @@ test("keeps an expanded file diff header at the same viewport position", async (

  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)
@@ -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`
@@ -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, toolPart } from "../performance/timeline-stability/fixture"

 const user = { id: "msg_user", type: "user", text: "Run it", time: { created: 1 } } satisfies SessionMessageInfo

@@ -82,102 +73,23 @@ 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 },
-          },
-        ],
+        content: [toolPart("call_subagent", "subagent", "streaming", {})],
      },
    ],
  })

  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")
+  await expect(delegating.locator('[data-component="text-shimmer"]')).toHaveAttribute(
+    "aria-label",
+    "Delegating agent...",
+  )
  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)")
@@ -215,11 +127,11 @@ test("renders the moved location notice in its compact timeline style", async ({
  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("line-height", "13px")
  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("line-height", "13px")
  await expect(value).toHaveCSS("color", "rgb(128, 128, 128)")
  await expect(value).toHaveCSS("text-overflow", "ellipsis")
  await expect(value).toHaveCSS("white-space", "nowrap")
@@ -250,43 +250,6 @@ test.describe("session timeline projection", () => {
    expect(rows).toEqual(["AssistantPart", "TurnDivider", "AssistantPart"])
  })

-  test("renders aliased and long custom model notices", async ({ page }) => {
-    const shortName = "GPT-5.4 nano"
-    const longName = "Company Gateway Extra Long Context Model for Narrow Timeline Layouts"
-    await setupTimeline(page, {
-      viewport: { width: 420, height: 700 },
-      sessionMessages: [
-        {
-          id: "msg_model_fast_nano",
-          type: "model-switched",
-          time: { created: 1700000000000 },
-          model: { providerID: "company-gateway", id: "fast-nano", variant: "xhigh" },
-        },
-        {
-          id: "msg_model_long_context",
-          type: "model-switched",
-          time: { created: 1700000001000 },
-          model: { providerID: "company-gateway", id: "long-context" },
-        },
-        userMessage(),
-        assistantMessage(),
-      ],
-    })
-
-    const shortNotice = page.locator('[data-slot="session-timeline-notice"]').filter({ hasText: shortName })
-    const longNotice = page.locator('[data-slot="session-timeline-notice"]').filter({ hasText: longName })
-    await expect(shortNotice).toBeVisible()
-    await expect(shortNotice.getByText(`Switched to ${shortName}`, { exact: true })).toBeVisible()
-    await expect(shortNotice.locator('[data-slot="session-timeline-notice-variant"]')).toHaveText("xhigh")
-    await expect(page.getByText("fast-nano", { exact: true })).toHaveCount(0)
-    await expect(shortNotice.locator('[data-component="provider-icon"]')).toBeVisible()
-    await expect(longNotice).toBeVisible()
-    await expect(longNotice.locator('[data-component="provider-icon"]')).toBeVisible()
-    await expect(longNotice.locator('[data-slot="session-timeline-notice-variant"]')).toHaveCount(0)
-    await expect(longNotice.locator("[title]")).toHaveAttribute("title", `Switched to ${longName}`)
-    await expect.poll(() => longNotice.evaluate((element) => element.scrollWidth <= element.clientWidth)).toBe(true)
-  })
-
  test("renders user image, file attachment, file reference, and agent reference", async ({ page }) => {
    const text = "Use @explore with @src/a.ts and inspect the attachments"
    const parts: PartSeed<"user">[] = [
@@ -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 }) => {
@@ -125,20 +121,19 @@ 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"],
+    [pending, "sample-skill"],
    [completed, "OpenCode"],
  ] as const) {
    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)
@@ -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="${sessionHref(childID)}"]`)
-  await expect(childTab).toHaveCount(1)
-  await childTab.click()
-  await Promise.all([expect(page).toHaveURL(sessionHref(childID)), expectSessionTitle(page, taskDescription)])
-})
-
 test("shows the not found fallback when the viewed session is deleted", async ({ page }) => {
  const events: OpenCodeEvent[] = []
  await setup(page, () => events.splice(0, 1))
@@ -10,13 +10,11 @@ const ptyID = "pty_terminal_composer_focus"
 const newPtyID = "pty_terminal_composer_focus_new"
 const server = `http://${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: {
@@ -76,7 +74,6 @@ test.beforeEach(async ({ page }) => {
  )
  await page.routeWebSocket(new RegExp(`/api/pty/${ptyID}/connect`), (ws) => {
    ws.onMessage((message) => ptyInput.push(message.toString()))
-    sendPtyOutput = (data) => ws.send(data)
  })
 })

@@ -93,33 +90,6 @@ test("clears the terminal line with Command+Delete", async ({ page }) => {
  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")
-})
-
 test("routes typing to the composer unless the open terminal is focused", async ({ page }) => {
  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
  await expectSessionTitle(page, "Terminal composer focus")
@@ -243,8 +213,7 @@ test("focuses a terminal created from the new-terminal button", async ({ page })

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

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

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

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

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

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

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

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

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

-type MotionProbe = {
-  widths: number
-  widthEnds: number
-  horizontalScrolls: number[]
-  reviewWidths: number[]
-  paintGaps: { review: number; terminalSurface: number }[]
-  terminalContentSizes: { width: number; height: number }[]
-  terminalAnchorGaps: number[]
-  resetAnchorOnMotion: boolean
-  panelGaps: number[]
-  terminalTops: number[]
-  terminalBottoms: number[]
-  heights: string[]
-  animations: string[]
-}
-
-async function installMotionProbe(page: Page) {
-  await page.evaluate(() => {
-    const probe: MotionProbe = {
-      widths: 0,
-      widthEnds: 0,
-      horizontalScrolls: [],
-      reviewWidths: [],
-      paintGaps: [],
-      terminalContentSizes: [],
-      terminalAnchorGaps: [],
-      resetAnchorOnMotion: false,
-      panelGaps: [],
-      terminalTops: [],
-      terminalBottoms: [],
-      heights: [],
-      animations: [],
-    }
-    const observed = new WeakSet<Element>()
-    const observers: ResizeObserver[] = []
-    const observeReview = () => {
-      const review = document.querySelector('[data-component="session-review-v2"]')
-      if (!review || observed.has(review)) return
-      observed.add(review)
-      const observer = new ResizeObserver(([entry]) => probe.reviewWidths.push(entry.contentRect.width))
-      observer.observe(review)
-      observers.push(observer)
-    }
-    const observedRegions = new WeakSet<Element>()
-    const observeStack = () => {
-      const reviewRegion = document.querySelector<HTMLElement>('[data-slot="session-side-region"]')
-      const terminalRegion = document.querySelector<HTMLElement>('[data-slot="session-side-terminal-region"]')
-      if (!reviewRegion || !terminalRegion || observedRegions.has(reviewRegion)) return
-      observedRegions.add(reviewRegion)
-      const observer = new ResizeObserver(() => {
-        const review = document.querySelector<HTMLElement>("#review-panel")
-        const terminal = document.querySelector<HTMLElement>("#terminal-panel")
-        const terminalContent = document.querySelector<HTMLElement>('[data-slot="terminal-panel-content"]')
-        const panelGap = document.querySelector<HTMLElement>('[data-slot="session-side-panel-gap"]')
-        if (!terminal || !terminalContent) return
-        probe.terminalTops.push(terminal.getBoundingClientRect().top)
-        probe.terminalBottoms.push(terminal.getBoundingClientRect().bottom)
-        probe.terminalContentSizes.push({
-          width: terminalContent.getBoundingClientRect().width,
-          height: terminalContent.getBoundingClientRect().height,
-        })
-        const anchorGap = Math.abs(terminal.getBoundingClientRect().top - terminalContent.getBoundingClientRect().top)
-        if (probe.resetAnchorOnMotion) {
-          if (anchorGap > 8) return
-          probe.terminalAnchorGaps = []
-          probe.resetAnchorOnMotion = false
-        }
-        probe.terminalAnchorGaps.push(anchorGap)
-        if (panelGap && terminalRegion.getBoundingClientRect().height > 1)
-          probe.panelGaps.push(panelGap.getBoundingClientRect().height)
-        if (!review) return
-        probe.paintGaps.push({
-          review: Math.abs(reviewRegion.getBoundingClientRect().height - review.getBoundingClientRect().height),
-          terminalSurface: Math.abs(
-            terminalRegion.getBoundingClientRect().height - terminal.getBoundingClientRect().height,
-          ),
-        })
-      })
-      observer.observe(reviewRegion)
-      observer.observe(terminalRegion)
-      observers.push(observer)
-    }
-    new MutationObserver(() => {
-      observeReview()
-      observeStack()
-    }).observe(document.body, { childList: true, subtree: true })
-    observeReview()
-    observeStack()
-    document.addEventListener("transitionrun", (event) => {
-      if (!(event.target instanceof Element)) return
-      const slot = event.target.getAttribute("data-slot")
-      if (event.propertyName === "width" && slot === "session-chat-panel") probe.widths++
-      if (event.propertyName === "height" && slot) {
-        probe.heights.push(slot)
-      }
-    })
-    document.addEventListener("transitionend", (event) => {
-      if (!(event.target instanceof Element)) return
-      if (event.propertyName === "width" && event.target.getAttribute("data-slot") === "session-chat-panel")
-        probe.widthEnds++
-    })
-    document.addEventListener("animationstart", (event) => {
-      if (!(event.target instanceof Element) || event.target.getAttribute("data-component") !== "terminal-panel") return
-      probe.animations.push(event.animationName)
-    })
-    window.addEventListener("scroll", () => probe.horizontalScrolls.push(window.scrollX))
-    ;(window as Window & { __panelMotion?: MotionProbe }).__panelMotion = probe
-  })
-}
-
-async function expectWidthMotions(page: Page, count: number) {
-  await expect
-    .poll(() => page.evaluate(() => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.widths ?? 0))
-    .toBeGreaterThanOrEqual(count)
-}
-
-async function resetHeightMotions(page: Page) {
-  await page.evaluate(() => {
-    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
-    if (probe) probe.heights = []
-  })
-}
-
-async function expectSideSlideSettled(page: Page, count: number) {
-  await expect
-    .poll(() => page.evaluate(() => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.widthEnds ?? 0))
-    .toBeGreaterThanOrEqual(count)
-}
-
-async function expectNoHeightMotion(page: Page) {
-  const heights = await page.evaluate(
-    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.heights ?? [],
-  )
-  expect(heights).toEqual([])
-}
-
-async function expectHiddenSideAligned(page: Page) {
-  await expect
-    .poll(() =>
-      page.evaluate(() => {
-        const chat = document.querySelector<HTMLElement>('[data-slot="session-chat-panel"]')
-        const side = document.querySelector<HTMLElement>('[data-slot="session-side-panel-presence"]')
-        if (!chat?.parentElement || !side) return Number.POSITIVE_INFINITY
-        const row = chat.parentElement.getBoundingClientRect()
-        const hidden = side.getBoundingClientRect()
-        return Math.max(
-          Math.abs(row.top - hidden.top),
-          Math.abs(row.right - hidden.right),
-          Math.abs(row.bottom - hidden.bottom),
-        )
-      }),
-    )
-    .toBeLessThanOrEqual(1)
-}
-
-async function resetHorizontalScrolls(page: Page) {
-  await page.evaluate(() => {
-    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
-    if (probe) probe.horizontalScrolls = []
-  })
-}
-
-async function expectNoHorizontalScroll(page: Page) {
-  const scrolls = await page.evaluate(
-    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.horizontalScrolls ?? [],
-  )
-  expect(Math.max(0, ...scrolls)).toBe(0)
-  expect(await page.evaluate(() => window.scrollX)).toBe(0)
-}
-
-async function expectReviewWidthStable(page: Page) {
-  const side = page.locator('[data-slot="session-side-panel-presence"]')
-  await expect
-    .poll(() => side.evaluate((element) => element.getAnimations().every((item) => item.playState === "finished")))
-    .toBe(true)
-  await expect
-    .poll(() =>
-      page.evaluate(() => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.reviewWidths.length ?? 0),
-    )
-    .toBeGreaterThan(0)
-  const widths = await page.evaluate(
-    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.reviewWidths.map(Math.round) ?? [],
-  )
-  expect(new Set(widths).size).toBe(1)
-}
-
-async function expectStackedGeometry(page: Page) {
-  await expect
-    .poll(() =>
-      page.evaluate(() => {
-        const review = document.querySelector<HTMLElement>("#review-panel")?.getBoundingClientRect()
-        const terminal = document.querySelector<HTMLElement>("#terminal-panel")?.getBoundingClientRect()
-        if (!review || !terminal) return Number.POSITIVE_INFINITY
-        return terminal.top - review.bottom
-      }),
-    )
-    .toBeLessThanOrEqual(9)
-  await expect
-    .poll(() =>
-      page.evaluate(() => {
-        const review = document.querySelector<HTMLElement>("#review-panel")?.getBoundingClientRect()
-        const terminal = document.querySelector<HTMLElement>("#terminal-panel")?.getBoundingClientRect()
-        if (!review || !terminal) return Number.NEGATIVE_INFINITY
-        return terminal.top - review.bottom
-      }),
-    )
-    .toBeGreaterThanOrEqual(7)
-}
-
-async function expectLogicalSideAlignment(page: Page, direction: "ltr" | "rtl") {
-  await expect
-    .poll(() =>
-      page.evaluate((direction) => {
-        const frame = document.querySelector('[data-slot="session-side-panel-presence"]')?.getBoundingClientRect()
-        const content = document.querySelector('[data-slot="session-side-panel-content"]')?.getBoundingClientRect()
-        if (!frame || !content) return Number.POSITIVE_INFINITY
-        return direction === "rtl" ? Math.abs(frame.right - content.right) : Math.abs(frame.left - content.left)
-      }, direction),
-    )
-    .toBeLessThanOrEqual(1)
-}
-
-async function expectStackPainted(page: Page) {
-  const gaps = await page.evaluate(
-    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.paintGaps ?? [],
-  )
-  expect(gaps.length).toBeGreaterThan(0)
-  expect(Math.max(...gaps.map((gap) => gap.review))).toBeLessThanOrEqual(1)
-  expect(Math.max(...gaps.map((gap) => gap.terminalSurface)), JSON.stringify(gaps)).toBeLessThanOrEqual(1)
-}
-
-async function resetTerminalTopMotion(page: Page) {
-  await page.evaluate(() => {
-    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
-    if (probe) probe.terminalTops = []
-  })
-}
-
-async function resetTerminalBottomMotion(page: Page) {
-  await page.evaluate(() => {
-    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
-    if (probe) probe.terminalBottoms = []
-  })
-}
-
-async function expectTerminalBottomFixed(page: Page) {
-  const bottoms = await page.evaluate(
-    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.terminalBottoms ?? [],
-  )
-  expect(bottoms.length).toBeGreaterThan(0)
-  expect(Math.max(...bottoms) - Math.min(...bottoms)).toBeLessThanOrEqual(1)
-}
-
-async function resetTerminalAnchorGaps(page: Page) {
-  await page.evaluate(() => {
-    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
-    if (probe) probe.resetAnchorOnMotion = true
-  })
-}
-
-async function resetPanelGaps(page: Page) {
-  await page.evaluate(() => {
-    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
-    if (probe) probe.panelGaps = []
-  })
-}
-
-async function expectPanelGapHeld(page: Page) {
-  const gaps = await page.evaluate(
-    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.panelGaps ?? [],
-  )
-  expect(gaps.length).toBeGreaterThan(0)
-  expect(gaps.filter((gap) => gap >= 7 && gap <= 9).length / gaps.length).toBeGreaterThan(0.6)
-  expect(Math.min(...gaps)).toBeGreaterThanOrEqual(0)
-  expect(Math.max(...gaps)).toBeLessThanOrEqual(9)
-}
-
-async function expectTerminalTopAnchored(page: Page) {
-  const gaps = await page.evaluate(
-    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.terminalAnchorGaps ?? [],
-  )
-  expect(gaps.length).toBeGreaterThan(0)
-  expect(Math.max(...gaps), JSON.stringify(gaps)).toBeLessThanOrEqual(8)
-}
-
-async function resetTerminalContentSizes(page: Page) {
-  await page.evaluate(() => {
-    const probe = (window as Window & { __panelMotion?: MotionProbe }).__panelMotion
-    if (probe) probe.terminalContentSizes = []
-  })
-}
-
-async function expectTerminalContentCachedSize(page: Page) {
-  const sizes = await page.evaluate(
-    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.terminalContentSizes ?? [],
-  )
-  expect(sizes.length).toBeGreaterThan(0)
-  expect(Math.min(...sizes.map((size) => size.width))).toBeGreaterThan(100)
-  expect(Math.min(...sizes.map((size) => size.height))).toBeGreaterThan(100)
-}
-
-async function expectTerminalTopMotion(page: Page) {
-  const tops = await page.evaluate(
-    () => (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.terminalTops.map(Math.round) ?? [],
-  )
-  const unique = [...new Set(tops)]
-  const range = Math.max(...unique) - Math.min(...unique)
-  const maxDelta = Math.max(...unique.slice(1).map((value, index) => Math.abs(value - unique[index])))
-  expect(unique.length, JSON.stringify(unique)).toBeGreaterThan(6)
-  expect(maxDelta, JSON.stringify({ unique, range, maxDelta })).toBeLessThan(range * 0.3)
-}
-
-async function expectHeightMotions(page: Page, slot: string, count: number) {
-  await expect
-    .poll(() =>
-      page.evaluate(
-        (slot) =>
-          (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.heights.filter((value) => value === slot)
-            .length ?? 0,
-        slot,
-      ),
-    )
-    .toBeGreaterThanOrEqual(count)
-}
-
-async function expectAnimation(page: Page, name: string) {
-  await expect
-    .poll(() =>
-      page.evaluate(
-        (name) =>
-          (window as Window & { __panelMotion?: MotionProbe }).__panelMotion?.animations.includes(name) ?? false,
-        name,
-      ),
-    )
-    .toBe(true)
-}
-
 function base64Encode(value: string) {
  return Buffer.from(value, "utf8").toString("base64").replace(/\+/g, "-").replace(/\//g, "_").replace(/=/g, "")
 }
@@ -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")
@@ -501,7 +501,7 @@ function currentModels(value: unknown) {
        return [
          {
            id: model.id,
-            modelID: record(model.api) && typeof model.api.id === "string" ? model.api.id : model.id,
+            modelID: model.id,
            providerID: provider.id,
            name: model.name,
            capabilities: { tools: true, input: ["text"], output: ["text"] },
@@ -57,7 +57,6 @@
    "@dnd-kit/dom": "0.5.0",
    "@dnd-kit/helpers": "0.5.0",
    "@dnd-kit/solid": "0.5.0",
-    "@ibm/plex": "6.4.1",
    "@kobalte/core": "catalog:",
    "@opencode-ai/client": "workspace:*",
    "@opencode-ai/schema": "workspace:*",
@@ -69,7 +68,6 @@
    "@solid-primitives/event-bus": "1.1.2",
    "@solid-primitives/event-listener": "2.4.5",
    "@solid-primitives/i18n": "2.2.1",
-    "@solid-primitives/keyed": "1.5.3",
    "@solid-primitives/media": "2.3.3",
    "@solid-primitives/resize-observer": "2.1.5",
    "@solid-primitives/scheduled": "1.5.3",
@@ -105,16 +105,14 @@ export function AppInterface(props: {
  // providers beneath it.
  const Root = (rootProps: ParentProps) => (
    <TabsProvider>
-      <GlobalProvider>
-        <BodyTypography />
-        <CommandProvider>
-          <DesktopCommands />
-          <HighlightsProvider>
-            {props.children}
-            {rootProps.children}
-          </HighlightsProvider>
-        </CommandProvider>
-      </GlobalProvider>
+      <BodyTypography />
+      <CommandProvider>
+        <DesktopCommands />
+        <HighlightsProvider>
+          {props.children}
+          {rootProps.children}
+        </HighlightsProvider>
+      </CommandProvider>
    </TabsProvider>
  )

@@ -125,9 +123,11 @@ export function AppInterface(props: {
      servers={props.servers}
    >
      <SettingsProvider>
-        <Dynamic component={props.router ?? Router} root={Root}>
-          <AppRoutes />
-        </Dynamic>
+        <GlobalProvider>
+          <Dynamic component={props.router ?? Router} root={Root}>
+            <AppRoutes />
+          </Dynamic>
+        </GlobalProvider>
      </SettingsProvider>
    </ServersProvider>
  )
@@ -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
@@ -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={
@@ -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
@@ -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" }])
  })

@@ -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)
 }
@@ -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"
@@ -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,
@@ -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"),
  })
@@ -1,12 +1,8 @@
 import type { SessionInfo } from "@opencode-ai/client/promise"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
-import { Button } from "@opencode-ai/ui/button"
-import { DialogFooter, DialogHeader, DialogTitleGroup, Dialog } from "@opencode-ai/ui/dialog"
-import { skipToken, useQuery, useQueryClient } from "@tanstack/solid-query"
+import { skipToken, useQuery } from "@tanstack/solid-query"
 import { DateTime } from "luxon"
 import { type Accessor, createEffect, createMemo, type JSX, startTransition, untrack } from "solid-js"
-import { createStore } from "solid-js/store"
-import { notifySessionTabsRemoved } from "@/shell/titlebar/session-events"
 import { useCommand } from "@/shell/commands/command"
 import { loadHomeSessionIndex, mergeHomeSessionIndex, retainHomeSessions } from "@/home/sessions/index"
 import type { LocalProject } from "@/shell/state/layout"
@@ -15,10 +11,7 @@ import { ServerConnection } from "@/runtime/server/registry"
 import { sessionHasOpenTab, useTabs } from "@/shell/tabs/tabs"
 import { errorMessage } from "@/shell/layout/helpers"
 import { useSessionTabAvatarState } from "@/shell/layout/project-avatar-state"
-import { removedSessionIDs } from "@/session/session-domain"
 import { pathKey } from "@/workspaces/path-key"
-import { downloadSessionExport, fetchSessionExport, sessionExportFilename } from "@/session/commands/export"
-import { sessionLabel, sessionTitle } from "@/session/title"
 import { showToast } from "@/shell/notifications/toast"
 import { archiveHomeSession } from "./archive"
 import type { HomeController } from "../model"
@@ -42,8 +35,6 @@ export function createHomeSessionsController(home: HomeController) {
  const command = useCommand()
  const dialog = useDialog()
  const language = useLanguage()
-  const queryClient = useQueryClient()
-  const [removed, setRemoved] = createStore({ keys: [] as string[] })
  const projectDirectories = createMemo(() => {
    const selected = home.selection.value().directory
    if (!selected) return
@@ -68,13 +59,9 @@ export function createHomeSessionsController(home: HomeController) {
  })
  const indexedSessions = createMemo(() => {
    const ctx = home.server.focusedContext()
-    const conn = home.server.focused()
-    if (!ctx || !conn) return []
-    const server = ServerConnection.key(conn)
+    if (!ctx) return []
    return retainHomeSessions(
-      mergeHomeSessionIndex(sessionLoad.data?.() ?? [], ctx.data.session.list()).filter(
-        (session) => !removed.keys.includes(`${server}\0${session.id}`),
-      ),
+      mergeHomeSessionIndex(sessionLoad.data?.() ?? [], ctx.data.session.list()),
      HOME_SESSION_LIMIT,
      Date.now(),
    )
@@ -136,119 +123,6 @@ export function createHomeSessionsController(home: HomeController) {
    },
  ])

-  const rename = async (server: ServerConnection.Key, session: SessionInfo, title: string) => {
-    const conn = home.server.list().find((item) => ServerConnection.key(item) === server)
-    const ctx = conn ? home.server.context(conn) : undefined
-    if (!conn || !ctx) return false
-    const next = title.trim()
-    if (!next || next === sessionLabel(session)) return true
-    return ctx.sdk.api.session
-      .rename({ sessionID: session.id, title: next })
-      .then(() => {
-        ctx.data.session.remember({ ...(ctx.data.session.get(session.id) ?? session), title: next })
-        // Rename advances time.updated server-side; re-sync the canonical
-        // record so date grouping and ordering do not go stale.
-        ctx.data.session.invalidate(session.id)
-        void ctx.data.session.sync(session.id).catch(() => {})
-        queryClient.setQueryData<SessionInfo[]>(["home-sessions", conn], (current) =>
-          current?.map((item) => (item.id === session.id ? { ...item, title: next } : item)),
-        )
-        return true
-      })
-      .catch((cause) => {
-        showToast({
-          title: language.t("common.requestFailed"),
-          description: errorMessage(cause, language.t("common.requestFailed")),
-        })
-        return false
-      })
-  }
-
-  const exportSession = async (server: ServerConnection.Key, session: SessionInfo) => {
-    const conn = home.server.list().find((item) => ServerConnection.key(item) === server)
-    const ctx = conn ? home.server.context(conn) : undefined
-    if (!ctx) return
-    try {
-      const data = await fetchSessionExport({ sessionID: session.id, api: ctx.sdk.api })
-      const filename = sessionExportFilename(data.info)
-      downloadSessionExport(filename, data)
-      showToast({
-        variant: "success",
-        icon: "circle-check",
-        title: language.t("toast.session.export.success.title"),
-        description: language.t("toast.session.export.success.description", { filename }),
-      })
-    } catch (cause) {
-      showToast({
-        variant: "error",
-        title: language.t("toast.session.export.failed.title"),
-        description: cause instanceof Error ? cause.message : language.t("toast.session.export.failed.description"),
-      })
-    }
-  }
-
-  const remove = async (server: ServerConnection.Key, session: SessionInfo) => {
-    const conn = home.server.list().find((item) => ServerConnection.key(item) === server)
-    const ctx = conn ? home.server.context(conn) : undefined
-    if (!conn || !ctx) return false
-    const ids = [...removedSessionIDs(ctx.data.session.list(), session.id)]
-    await queryClient.cancelQueries({ queryKey: ["home-sessions", conn], exact: true })
-    return ctx.sdk.api.session
-      .remove({ sessionID: session.id })
-      .then(() => {
-        const removedIDs = new Set(ids)
-        setRemoved("keys", (current) => [...new Set([...current, ...ids.map((id) => `${server}\0${id}`)])])
-        queryClient.setQueryData<SessionInfo[]>(["home-sessions", conn], (current) =>
-          current?.filter((item) => !removedIDs.has(item.id)),
-        )
-        notifySessionTabsRemoved({
-          server: ServerConnection.key(conn),
-          directory: session.location.directory,
-          sessionIDs: ids,
-        })
-        return true
-      })
-      .catch((cause) => {
-        showToast({
-          title: language.t("session.delete.failed.title"),
-          description: errorMessage(cause, language.t("session.delete.failed.title")),
-        })
-        return false
-      })
-      .finally(() => {
-        // Always refetch: the pre-mutation cancel may have aborted an
-        // in-flight index fetch, and a failed delete must not leave the
-        // index unloaded either.
-        void queryClient.invalidateQueries({ queryKey: ["home-sessions", conn], exact: true })
-      })
-  }
-
-  function DeleteDialog(props: { server: ServerConnection.Key; session: SessionInfo }) {
-    const name = () => sessionTitle(props.session.title) ?? language.t("command.session.new")
-    const confirm = async () => {
-      await remove(props.server, props.session)
-      dialog.close()
-    }
-    return (
-      <Dialog fit>
-        <DialogHeader hideClose>
-          <DialogTitleGroup
-            title={language.t("session.delete.title")}
-            description={language.t("session.delete.confirm", { name: name() })}
-          />
-        </DialogHeader>
-        <DialogFooter>
-          <Button variant="ghost" onClick={() => dialog.close()}>
-            {language.t("common.cancel")}
-          </Button>
-          <Button variant="danger" onClick={confirm}>
-            {language.t("session.delete.button")}
-          </Button>
-        </DialogFooter>
-      </Dialog>
-    )
-  }
-
  return {
    copy: {
      language,
@@ -263,17 +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)
@@ -319,10 +182,6 @@ export function createHomeSessionsController(home: HomeController) {
            }),
        })
      },
-      rename,
-      export: exportSession,
-      showDelete: (server: ServerConnection.Key, session: SessionInfo) =>
-        dialog.show(() => <DeleteDialog server={server} session={session} />),
    },
    tab: {
      isOpen: (record: HomeSessionRecord) =>
@@ -27,9 +27,6 @@ export function HomeSessions(props: {
      onCreateSession={props.sessions.session.create}
      onOpenSession={props.sessions.session.open}
      onArchiveSession={props.sessions.session.archive}
-      onRenameSession={props.sessions.session.rename}
-      onExportSession={props.sessions.session.export}
-      onDeleteSession={props.sessions.session.showDelete}
      onSetHoverTarget={props.scroll.viewport.setHoverTarget}
      onSetThumbTrack={props.scroll.viewport.setThumbTrack}
      onSetContent={props.scroll.header.setContent}
@@ -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() }),
@@ -1,14 +1,10 @@
 import type { SessionInfo } from "@opencode-ai/client/promise"
-import { Key } from "@solid-primitives/keyed"
-import { createMemo, For, Index, onCleanup, Show, Suspense } from "solid-js"
-import { createStore, type SetStoreFunction } from "solid-js/store"
-import { InlineInput } from "@opencode-ai/ui/inline-input"
+import { createMemo, For, Show, Suspense } from "solid-js"
 import { Spinner } from "@opencode-ai/ui/spinner"
 import { ScrollView } from "@opencode-ai/ui/scroll-view"
 import { Button } from "@opencode-ai/ui/button"
 import { Icon } from "@opencode-ai/ui/icon"
 import { IconButton } from "@opencode-ai/ui/icon-button"
-import { Menu } from "@opencode-ai/ui/menu"
 import { Tooltip } from "@opencode-ai/ui/tooltip"
 import { useLanguage } from "@/runtime/i18n/language"
 import { ServerConnection } from "@/runtime/server/registry"
@@ -26,7 +22,6 @@ import {
 const SHOW_HOME_SESSION_ARCHIVE = false
 const HOME_SECTION_LABEL = "text-v2-text-text-muted [font-weight:440]"
 const HOME_SESSION_SEARCH_RESULTS_ID = "home-session-search-results"
-const HOME_SESSION_LONG_PRESS_MS = 500

 // Middle-click or Cmd+click on macOS (Ctrl+click elsewhere) opens a session
 // tab in the background without navigating, matching browser conventions.
@@ -59,9 +54,6 @@ export type HomeSessionsViewProps = {
  onCreateSession: () => void
  onOpenSession: (session: SessionInfo, options?: OpenSessionOptions) => void
  onArchiveSession: (session: SessionInfo) => Promise<void>
-  onRenameSession: (server: ServerConnection.Key, session: SessionInfo, title: string) => Promise<boolean>
-  onExportSession: (server: ServerConnection.Key, session: SessionInfo) => Promise<void>
-  onDeleteSession: (server: ServerConnection.Key, session: SessionInfo) => void
  onSetHoverTarget: (element: HTMLElement) => void
  onSetThumbTrack: (element: HTMLDivElement) => void
  onSetContent: (element: HTMLDivElement) => void
@@ -79,16 +71,7 @@ export type HomeSessionsViewProps = {
  onSearchSelect: (record: HomeSessionRecord, options?: OpenSessionOptions) => void
 }

-// Session store updates recreate row components, so row-local state would
-// close an open context menu or drop an in-progress rename. Keep both keyed
-// by session ID at the view root, like the projects list does.
-type HomeSessionRowUI = {
-  menu: { id: string; x: number; y: number } | undefined
-  editor: { id: string; draft: string; renaming: boolean } | undefined
-}
-
 export function HomeSessionsView(props: HomeSessionsViewProps) {
-  const [rowUI, setRowUI] = createStore<HomeSessionRowUI>({ menu: undefined, editor: undefined })
  return (
    <section
      ref={props.onSetHoverTarget}
@@ -139,29 +122,23 @@ export function HomeSessionsView(props: HomeSessionsViewProps) {
            }
          >
            <div ref={props.onSetContent} class="flex flex-col pt-3 pr-3 pb-16">
-              {/* Index keeps group subtrees mounted when the group arrays are
-                  rebuilt, so store updates cannot recreate rows mid-gesture. */}
-              <Index each={props.groups}>
+              <For each={props.groups}>
                {(group, index) => (
                  <>
                    <HomeSessionGroupHeader
-                      title={group().title}
-                      titleOpacity={props.titleOpacity(group().id)}
-                      onSetRef={(element) => props.onSetHeader(group().id, element)}
-                      elevated={index === 0}
+                      title={group.title}
+                      titleOpacity={props.titleOpacity(group.id)}
+                      onSetRef={(element) => props.onSetHeader(group.id, element)}
+                      elevated={index() === 0}
                    />
-                    <div class={`flex min-w-0 flex-col gap-px pt-4 ${index === props.groups.length - 1 ? "" : "mb-6"}`}>
-                      {/* Rows key by session ID: session.sync replaces the
-                          stored session object wholesale, so reference-keyed
-                          rows would be disposed mid-interaction whenever a
-                          sync response lands. */}
-                      <Key each={group().sessions} by={(record) => record.session.id}>
-                        {(record) => <HomeSessionRow {...props} record={record()} rowUI={rowUI} setRowUI={setRowUI} />}
-                      </Key>
+                    <div
+                      class={`flex min-w-0 flex-col gap-px pt-4 ${index() === props.groups.length - 1 ? "" : "mb-6"}`}
+                    >
+                      <For each={group.sessions}>{(record) => <HomeSessionRow {...props} record={record} />}</For>
                    </div>
                  </>
                )}
-              </Index>
+              </For>
            </div>
          </Show>
        </Suspense>
@@ -435,263 +412,45 @@ function HomeSessionGroupHeader(props: {
  )
 }

-function HomeSessionRow(
-  props: HomeSessionsViewProps & {
-    record: HomeSessionRecord
-    rowUI: HomeSessionRowUI
-    setRowUI: SetStoreFunction<HomeSessionRowUI>
-  },
-) {
+function HomeSessionRow(props: HomeSessionsViewProps & { record: HomeSessionRecord }) {
  const title = createMemo(() => sessionLabel(props.record.session))
  const showProjectName = () => props.showProjectName && props.record.projectName
-  const sessionID = () => props.record.session.id
-  const menu = () => (props.rowUI.menu?.id === sessionID() ? props.rowUI.menu : undefined)
-  const editor = () => (props.rowUI.editor?.id === sessionID() ? props.rowUI.editor : undefined)
-  let longPressTimer: ReturnType<typeof setTimeout> | undefined
-  let longPressStart: { x: number; y: number } | undefined
-  let suppressClick = false
-  let menuInteractedOutside = false
-
-  // Focus targets are looked up by session ID: session store updates recreate
-  // row components, so instance refs can point at detached nodes by the time
-  // deferred focus runs.
-  const rowSelector = () => `[data-component="home-session-row-container"][data-session-id="${sessionID()}"]`
-  const rowButton = () =>
-    document.querySelector<HTMLButtonElement>(`${rowSelector()} [data-component="home-session-row"]`)
-  const renameInput = () =>
-    document.querySelector<HTMLInputElement>(`${rowSelector()} [data-component="home-session-rename"]`)
-
-  const clearLongPress = () => {
-    if (longPressTimer !== undefined) clearTimeout(longPressTimer)
-    longPressTimer = undefined
-    longPressStart = undefined
-  }
-  onCleanup(clearLongPress)
-
-  const openMenu = (element: HTMLElement, clientX: number, clientY: number) => {
-    const bounds = element.getBoundingClientRect()
-    props.setRowUI("menu", { id: sessionID(), x: clientX - bounds.left, y: clientY - bounds.top })
-  }
-
-  const openEditor = () => {
-    props.setRowUI("editor", { id: sessionID(), draft: title(), renaming: false })
-    requestAnimationFrame(() => {
-      const input = renameInput()
-      input?.focus()
-      input?.select()
-    })
-  }
-  const closeEditor = () => {
-    if (editor()?.renaming) return
-    props.setRowUI("editor", (value) => (value?.id === sessionID() ? undefined : value))
-  }
-  const saveEditor = async () => {
-    const current = editor()
-    if (!current || current.renaming) return
-    props.setRowUI("editor", { ...current, renaming: true })
-    const saved = await props.onRenameSession(props.server, props.record.session, current.draft)
-    // Disabling the input during the request drops focus to the body; restore
-    // it unless the user focused another control while the rename was pending.
-    const restore = document.activeElement === document.body || document.activeElement === renameInput()
-    props.setRowUI("editor", (value) => {
-      if (value?.id !== sessionID()) return value
-      return saved ? undefined : { ...value, renaming: false }
-    })
-    if (!restore) return
-    requestAnimationFrame(() => {
-      if (saved) {
-        rowButton()?.focus()
-        return
-      }
-      renameInput()?.focus()
-    })
-  }

  return (
    <div
-      data-component="home-session-row-container"
-      data-session-id={props.record.session.id}
-      class="group/session relative flex h-10 min-w-0 items-center rounded-[6px] outline-none focus:outline-none focus-visible:outline-none"
+      class="group/session relative flex h-10 min-w-0 items-center rounded-[6px]"
      classList={{ group: !!showProjectName() }}
-      onContextMenu={(event) => {
-        // While renaming, keep the native menu so paste and spelling work.
-        if (editor()) return
-        event.preventDefault()
-        openMenu(event.currentTarget, event.clientX, event.clientY)
-      }}
    >
-      <Show
-        when={!editor()}
-        fallback={
-          <div class="flex h-10 min-w-0 w-full flex-1 items-center gap-2 py-3 pl-3 pr-10">
-            <HomeSessionLeadingController
-              server={props.server}
-              isOpenTab={props.isOpenTab}
-              record={props.record}
-              revealProjectOnHover={false}
-            />
-            <InlineInput
-              data-component="home-session-rename"
-              aria-label={props.language.t("common.rename")}
-              dir="auto"
-              value={editor()?.draft ?? ""}
-              disabled={editor()?.renaming ?? false}
-              class={`
-                block min-w-0 overflow-hidden text-ellipsis whitespace-nowrap text-v2-text-text-base
-                [font-weight:530] field-sizing-content outline-none focus:outline-none focus-visible:outline-none
-                ${showProjectName() ? "max-w-[min(70%,480px)] flex-[0_1_auto]" : "flex-[1_1_auto]"}
-              `}
-              style={{ "--inline-input-shadow": "none", "text-align": "start" }}
-              onInput={(event) => {
-                const draft = event.currentTarget.value
-                props.setRowUI("editor", (value) => (value?.id === sessionID() ? { ...value, draft } : value))
-              }}
-              onKeyDown={(event) => {
-                event.stopPropagation()
-                // Enter and Escape during IME composition commit or cancel
-                // the composition, not the rename. Safari can report the
-                // composition-confirming keydown with isComposing false but
-                // keyCode 229.
-                if (event.isComposing || event.keyCode === 229) return
-                if (event.key === "Enter") {
-                  event.preventDefault()
-                  void saveEditor()
-                  return
-                }
-                if (event.key !== "Escape") return
-                event.preventDefault()
-                closeEditor()
-                requestAnimationFrame(() => rowButton()?.focus())
-              }}
-              onBlur={closeEditor}
-            />
-            <Show when={showProjectName()}>
-              <HomeSessionProjectName name={props.record.projectName} />
-            </Show>
-          </div>
-        }
-      >
-        <button
-          type="button"
-          data-component="home-session-row"
-          aria-haspopup="menu"
-          aria-expanded={!!menu()}
-          class={`
-            flex h-10 min-w-0 w-full flex-1 shrink-0 cursor-default items-center gap-2 rounded-[6px] border-0
-            bg-transparent py-3 pl-3 pr-10 text-left text-v2-text-text-muted [font-weight:530]
-            transition-[background-color,color,box-shadow] duration-[120ms] ease-in-out
-            hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none
-          `}
-          onMouseDown={(event) => {
-            if (event.button === 1) event.preventDefault()
-          }}
-          onPointerDown={(event) => {
-            suppressClick = false
-            if (event.pointerType !== "touch") return
-            clearLongPress()
-            const element = event.currentTarget
-            const x = event.clientX
-            const y = event.clientY
-            longPressStart = { x, y }
-            longPressTimer = setTimeout(() => {
-              suppressClick = true
-              clearLongPress()
-              openMenu(element, x, y)
-            }, HOME_SESSION_LONG_PRESS_MS)
-          }}
-          onPointerMove={(event) => {
-            if (!longPressStart) return
-            if (Math.abs(event.clientX - longPressStart.x) <= 8 && Math.abs(event.clientY - longPressStart.y) <= 8)
-              return
-            clearLongPress()
-          }}
-          onPointerUp={clearLongPress}
-          onPointerCancel={() => {
-            clearLongPress()
-            suppressClick = false
-          }}
-          onKeyDown={(event) => {
-            if (event.key !== "ContextMenu" && (event.key !== "F10" || !event.shiftKey)) return
-            event.preventDefault()
-            const bounds = event.currentTarget.getBoundingClientRect()
-            openMenu(event.currentTarget, bounds.left + 12, bounds.bottom)
-          }}
-          onClick={(event) => {
-            // The flag stays set until the long-press compatibility click
-            // arrives, however delayed; keyboard activation (detail 0) is
-            // never that click and passes through.
-            if (suppressClick) {
-              suppressClick = false
-              if (event.detail !== 0) {
-                event.preventDefault()
-                return
-              }
-            }
-            props.onOpenSession(props.record.session, { background: isBackgroundOpen(event) })
-          }}
-          onAuxClick={(event) => {
-            if (!isBackgroundOpen(event)) return
-            event.preventDefault()
-            props.onOpenSession(props.record.session, { background: true })
-          }}
-        >
-          <HomeSessionLeadingController
-            server={props.server}
-            isOpenTab={props.isOpenTab}
-            record={props.record}
-            revealProjectOnHover={!!showProjectName()}
-          />
-          <HomeSessionTitle title={title()} showProjectName={!!showProjectName()} />
-          <Show when={showProjectName()}>
-            <HomeSessionProjectName name={props.record.projectName} />
-          </Show>
-        </button>
-      </Show>
-      <Menu
-        modal={false}
-        placement="bottom-start"
-        gutter={2}
-        open={!!menu()}
-        onOpenChange={(open) => {
-          if (open) return
-          props.setRowUI("menu", (value) => (value?.id === sessionID() ? undefined : value))
+      <button
+        type="button"
+        data-component="home-session-row"
+        class={`
+          flex h-10 min-w-0 w-full flex-1 shrink-0 cursor-default items-center gap-2 rounded-[6px] border-0
+          bg-transparent py-3 pl-3 pr-10 text-left text-v2-text-text-muted [font-weight:530]
+          transition-[background-color,color,box-shadow] duration-[120ms] ease-in-out
+          hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none
+        `}
+        onMouseDown={(event) => {
+          if (event.button === 1) event.preventDefault()
+        }}
+        onClick={(event) => props.onOpenSession(props.record.session, { background: isBackgroundOpen(event) })}
+        onAuxClick={(event) => {
+          if (!isBackgroundOpen(event)) return
+          event.preventDefault()
+          props.onOpenSession(props.record.session, { background: true })
        }}
      >
-        <Menu.Trigger
-          as="span"
-          aria-hidden="true"
-          tabIndex={-1}
-          class="pointer-events-none absolute size-px"
-          style={{ left: `${menu()?.x ?? 0}px`, top: `${menu()?.y ?? 0}px` }}
+        <HomeSessionLeadingController
+          server={props.server}
+          isOpenTab={props.isOpenTab}
+          record={props.record}
+          revealProjectOnHover={!!showProjectName()}
        />
-        <Menu.Portal>
-          <Menu.Content
-            onInteractOutside={() => {
-              menuInteractedOutside = true
-            }}
-            onCloseAutoFocus={(event) => {
-              // The trigger is an invisible positioning span, so Kobalte's
-              // default close focus restore has no useful target. Skip the
-              // row focus when the rename editor owns focus or the user
-              // dismissed the menu by interacting elsewhere.
-              event.preventDefault()
-              const outside = menuInteractedOutside
-              menuInteractedOutside = false
-              if (outside || editor()) return
-              requestAnimationFrame(() => rowButton()?.focus())
-            }}
-          >
-            <Menu.Item onSelect={openEditor}>{props.language.t("common.rename")}</Menu.Item>
-            <Menu.Item onSelect={() => void props.onExportSession(props.server, props.record.session)}>
-              {props.language.t("common.export")}...
-            </Menu.Item>
-            <Menu.Separator />
-            <Menu.Item onSelect={() => props.onDeleteSession(props.server, props.record.session)}>
-              {props.language.t("common.delete")}...
-            </Menu.Item>
-          </Menu.Content>
-        </Menu.Portal>
-      </Menu>
+        <HomeSessionTitle title={title()} showProjectName={!!showProjectName()} />
+        <Show when={showProjectName()}>
+          <HomeSessionProjectName name={props.record.projectName} />
+        </Show>
+      </button>
      <Show when={SHOW_HOME_SESSION_ARCHIVE}>
        <div
          class={`
@@ -722,7 +481,6 @@ function HomeSessionRow(
 function HomeSessionTitle(props: { title: string; showProjectName: boolean; search?: boolean }) {
  return (
    <span
-      data-component="home-session-title"
      class="min-w-0 overflow-hidden text-ellipsis whitespace-nowrap text-v2-text-text-base [font-weight:530]"
      classList={{
        "text-[13px] leading-4 tracking-[-0.04px]": !!props.search,
@@ -751,7 +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]
        `}
      >
@@ -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 {
@@ -33,133 +25,6 @@
 }

@layer components {
-  [data-slot="session-side-panel-presence"][data-opened="true"] {
-    animation: terminal-panel-presence-in 240ms cubic-bezier(0.22, 1, 0.36, 1);
-  }
-
-  [data-slot="session-side-panel-presence"][data-opened="false"] {
-    animation: terminal-panel-presence-out 240ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
-  }
-
-  [data-slot="session-side-region-presence"][data-opened="true"] {
-    animation: side-region-presence-in 240ms cubic-bezier(0.22, 1, 0.36, 1);
-  }
-
-  [data-slot="session-side-region-presence"][data-opened="false"] {
-    animation: side-region-presence-out 240ms cubic-bezier(0.22, 1, 0.36, 1);
-  }
-
-  [data-slot="terminal-panel-presence"][data-opened="true"] {
-    animation: terminal-panel-presence-in 200ms cubic-bezier(0.22, 1, 0.36, 1);
-  }
-
-  [data-slot="terminal-panel-presence"][data-opened="false"] {
-    animation: terminal-panel-presence-out 200ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
-  }
-
-  [data-slot="side-terminal-panel-presence"][data-opened="true"] {
-    animation: side-terminal-panel-presence-in 240ms cubic-bezier(0.22, 1, 0.36, 1);
-  }
-
-  [data-slot="side-terminal-panel-presence"][data-opened="false"] {
-    animation: side-terminal-panel-presence-out 240ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
-  }
-
-  [data-component="terminal-panel"][data-size-animated="true"][data-opened="true"] {
-    animation: terminal-panel-size-in 200ms cubic-bezier(0.22, 1, 0.36, 1);
-  }
-
-  [data-component="terminal-panel"][data-size-animated="true"][data-opened="false"] {
-    animation: terminal-panel-size-out 200ms cubic-bezier(0.22, 1, 0.36, 1);
-  }
-
-  @media (prefers-reduced-motion: reduce) {
-    [data-slot="terminal-panel-presence"],
-    [data-slot="side-terminal-panel-presence"],
-    [data-slot="session-side-panel-presence"],
-    [data-slot="session-side-region-presence"],
-    [data-component="terminal-panel"] {
-      animation: none !important;
-    }
-  }
-
-  @keyframes terminal-panel-presence-in {
-    from {
-      opacity: 0;
-    }
-    to {
-      opacity: 1;
-    }
-  }
-
-  @keyframes terminal-panel-presence-out {
-    from {
-      opacity: 1;
-    }
-    to {
-      opacity: 0;
-    }
-  }
-
-  @keyframes side-terminal-panel-presence-in {
-    from {
-      opacity: 0.999999;
-    }
-    to {
-      opacity: 1;
-    }
-  }
-
-  @keyframes side-terminal-panel-presence-out {
-    from {
-      opacity: 1;
-    }
-    to {
-      opacity: 0.999999;
-      visibility: hidden;
-    }
-  }
-
-  @keyframes side-region-presence-in {
-    from {
-      opacity: 0;
-    }
-    0.01% {
-      opacity: 0.999999;
-    }
-    to {
-      opacity: 1;
-    }
-  }
-
-  @keyframes side-region-presence-out {
-    from {
-      opacity: 1;
-    }
-    to {
-      opacity: 0.999999;
-      visibility: hidden;
-    }
-  }
-
-  @keyframes terminal-panel-size-in {
-    from {
-      height: 0;
-    }
-    to {
-      height: var(--terminal-panel-height);
-    }
-  }
-
-  @keyframes terminal-panel-size-out {
-    from {
-      height: var(--terminal-panel-height);
-    }
-    to {
-      height: 0;
-    }
-  }
-
  [data-component="getting-started"] {
    container-type: inline-size;
    container-name: getting-started;
@@ -1,6 +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
@@ -139,7 +139,7 @@ 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>
@@ -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}
@@ -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>
@@ -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: {
@@ -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>
  )
@@ -570,13 +570,10 @@ 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",
@@ -951,8 +948,6 @@ 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",
@@ -1,7 +1,7 @@
 import { describe, expect, test } from "bun:test"
 import type { OpenCodeEvent } from "@opencode-ai/client/promise"
 import { createRoot } from "solid-js"
-import { createOpenCodeEventSource, createServerTransport } from "./client"
+import { createOpenCodeEventSource } from "./client"

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

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

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

-export function createServerTransport(input: { http: ServerConnection.HttpBase; fetch?: typeof globalThis.fetch }): {
-  update(http: ServerConnection.HttpBase): ServerApi
-  readonly url: string
-  readonly api: ServerApi
-  readonly pty: ReturnType<typeof createPtyClient>
-} {
-  const build = (http: ServerConnection.HttpBase) => {
-    const api = createApiForServer({ server: http, fetch: input.fetch })
-    return { http, api, pty: createPtyClient(api, { url: http.url }) }
-  }
-  const state = { current: build(input.http) }
-  return {
-    update(http: ServerConnection.HttpBase) {
-      state.current = build(http)
-      return state.current.api
-    },
-    get url() {
-      return state.current.http.url
-    },
-    get api() {
-      return state.current.api
-    },
-    get pty() {
-      return state.current.pty
-    },
-  }
-}
-
 export type ServerSDK = ServerSDKBase & {
  ensureDirSdkContext: (directory: string) => ReturnType<typeof createDirSdkContext>
 }
@@ -210,7 +210,7 @@ export namespace ServerConnection {
    http: HttpBase
  } & (
    | // Regular desktop server
-    { variant: "base"; reconnect?: (signal: AbortSignal) => Promise<HttpBase> }
+    { variant: "base" }
    // WSL server (windows only)
    | {
        variant: "wsl"
@@ -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"
@@ -10,8 +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 { createNotificationCoordinator } from "@/shell/notifications/coordinator"
-import { Persist, persisted } from "@/runtime/persistence/storage"

 export const { use: useGlobal, provider: GlobalProvider } = createSimpleContext({
  name: "Global",
@@ -26,8 +24,6 @@ export const { use: useGlobal, provider: GlobalProvider } = createSimpleContext(
        serverKey: undefined as ServerConnection.Key | undefined,
      },
    })
-    const models = createGlobalModels()
-    const notificationCoordinator = createNotificationCoordinator()

    const settingsServer = createMemo(() => {
      const list = server.list
@@ -52,7 +48,7 @@ export const { use: useGlobal, provider: GlobalProvider } = createSimpleContext(
      if (existing) return existing
      const serverCtx = createRoot((dispose) => {
        serverCtxDisposers.set(key, dispose)
-        return createServerController(conn, server.scope(key), server.projects.forServer(key), notificationCoordinator)
+        return createServerController(conn, server.scope(key), server.projects.forServer(key))
      }, owner)
      serverCtxs.set(key, serverCtx)
      return serverCtx
@@ -90,7 +86,6 @@ export const { use: useGlobal, provider: GlobalProvider } = createSimpleContext(
          },
        },
      },
-      models,
      ensureServerCtx(conn: ServerConnection.Any) {
        return ensureServerCtx(conn)
      },
@@ -98,42 +93,10 @@ 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,
  projects: ReturnType<typeof createServerProjects>,
-  notificationCoordinator: ReturnType<typeof createNotificationCoordinator>,
 ) {
  const connKey = ServerConnection.key(conn)
  const sdk = createServerSdkContext(conn, scope)
@@ -148,7 +111,7 @@ function createServerController(
  })
  const sync = createServerSyncContext(sdk, data)
  const permission = createServerPermissionState({ sdk, sync, data })
-  const notification = createServerNotificationState({ sdk, data, key: connKey, coordinator: notificationCoordinator })
+  const notification = createServerNotificationState({ sdk, data, key: connKey })

  function enrich(project: { worktree: string; expanded: boolean }) {
    const [childStore] = sync.child(project.worktree, { bootstrap: false })
@@ -36,10 +36,10 @@ export const loadLspQuery = (scope: ServerScope, directory: string) =>
    queryFn: async () => [],
  })

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

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

  const [configQuery, pathQuery] = useQueries(() => ({
@@ -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;
 }
@@ -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()
--- a/Show More
+++ b/Show More