fix(core): preserve aisdk provider compatibility

Co-authored-by: Test <test@opencode.test>

.github/ISSUE_TEMPLATE/config.yml

@@ -2,4 +2,4 @@ blank_issues_enabled: false
 contact_links:
   - name: 💬 Discord Community
     url: https://discord.gg/opencode
-    about: For quick questions or real-time discussion. Note that issues are searchable and help others with the same question.
+    about: For support, troubleshooting, how-to questions, and real-time discussion.

.github/ISSUE_TEMPLATE/question.yml

@@ -1,10 +0,0 @@
-name: Question
-description: Ask a question
-body:
-  - type: textarea
-    id: question
-    attributes:
-      label: Question
-      description: What's your question?
-    validations:
-      required: true

.github/workflows/publish.yml

@@ -325,6 +325,7 @@ jobs:
         run: bun run build
         working-directory: packages/desktop
         env:
+          NODE_OPTIONS: --max-old-space-size=4096
           OPENCODE_CHANNEL: ${{ (github.ref_name == 'beta' && 'beta') || 'prod' }}
           SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_AUTH_TOKEN }}
           SENTRY_ORG: ${{ vars.SENTRY_ORG }}

.github/workflows/storybook.yml

@@ -9,6 +9,7 @@ on:
       - "bun.lock"
       - "packages/storybook/**"
       - "packages/ui/**"
+      - "packages/session-ui/**"
   pull_request:
     branches: [dev]
     paths:
@@ -17,6 +18,7 @@ on:
       - "bun.lock"
       - "packages/storybook/**"
       - "packages/ui/**"
+      - "packages/session-ui/**"
   workflow_dispatch:
 
 concurrency:

.github/workflows/test.yml

@@ -65,10 +65,15 @@ jobs:
 
       - name: Run unit tests
         timeout-minutes: 20
-        run: bun turbo test --output-logs=errors-only --log-order=grouped --log-prefix=task
+        run: GITHUB_ACTIONS=false bun turbo test
         env:
           OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER: ${{ runner.os == 'Windows' && 'true' || 'false' }}
 
+      - name: Check generated client
+        if: runner.os == 'Linux'
+        working-directory: packages/client
+        run: bun run check:generated
+
       - name: Run HttpApi exerciser gates
         if: runner.os == 'Linux'
         working-directory: packages/opencode
@@ -99,7 +104,8 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
-          node-version: "24"
+          # Playwright 1.59 hangs while extracting Chromium with Node 24.16.
+          node-version: "24.15"
 
       - name: Setup Bun
         uses: ./.github/actions/setup-bun

.prettierignore

@@ -1,2 +1,4 @@
 sst-env.d.ts
 packages/desktop/src/bindings.ts
+packages/client/src/generated/
+packages/client/src/generated-effect/

AGENTS.md

@@ -28,6 +28,7 @@ Examples: `fix(tui): simplify thinking toggle styling`, `docs: update contributi
 - Rely on type inference when possible; avoid explicit type annotations or interfaces unless necessary for exports or clarity
 - Prefer functional array methods (flatMap, filter, map) over for loops; use type guards on filter to maintain type inference downstream
 - In `src/config`, follow the existing self-export pattern at the top of the file (for example `export * as ConfigAgent from "./agent"`) when adding a new config module.
+- In Effect generators, bind services to named variables before calling methods. Do not use nested service yields such as `yield* (yield* Foo.Service).bar()`.
 
 Reduce total variable count by inlining when a value is only used once.
 
@@ -137,7 +138,7 @@ const table = sqliteTable("session", {
 
 ## Testing
 
-- Avoid mocks as much as possible
+- Avoid mocks as much as possible, you shouldn't be using globalThis.\* at all unless it's the only option.
 - Test actual implementation, do not duplicate logic into tests
 - Tests cannot run from repo root (guard: `do-not-run-tests-from-root`); run from package dirs like `packages/opencode`.
 
@@ -152,7 +153,7 @@ const table = sqliteTable("session", {
 - Keep `SessionExecution` process-global and Session-ID based. Its local implementation owns the process-local Session coordinator and discovers placement through `SessionStore` plus `LocationServiceMap.get(session.location)` only when a drain starts; no layer should take a Session ID. V2 interruption targets the active process-local ownership chain for that Session; idle or missing interruption is a no-op.
 - Keep `SessionRunner`, model resolution, tool registry, permissions, and filesystem Location-scoped. Omitted `Location.workspaceID` means implicit-local placement; explicit workspace identity remains reserved for future placement semantics.
 - Preserve one explicit `llm.stream(request)` call per provider turn and reload projected history before durable continuation. Do not bridge through legacy `SessionPrompt.loop(...)` or delegate orchestration to an in-memory tool loop.
-- Keep local Session drains process-local until clustering is implemented. `SessionRunCoordinator` joins explicit same-Session resumes, coalesces prompt wakeups, and allows different Sessions to run concurrently. Advisory wakes drain eligible durable inbox rows only; post-crash activity recovery requires a separate explicit design before it may retry provider work.
+- Keep local Session drains process-local until clustering is implemented. `SessionRunCoordinator` joins explicit same-Session resumes, coalesces prompt wakeups, and allows different Sessions to run concurrently. Advisory wakes drain eligible durable inbox rows only; post-crash continuation recovery requires a separate explicit design before it may retry provider work. A drain has no durable identity or transcript boundary.
-- Keep delivery vocabulary explicit. Prompts steer by default and coalesce into the active activity at the next safe provider-turn boundary. Explicit `queue` inputs open FIFO future activities one at a time after the active activity settles.
+- Keep delivery vocabulary explicit. Prompts steer by default and promote at the next safe provider-turn boundary while the current drain requires continuation. An explicit `queue` input remains pending until the Session would otherwise become idle; promote one queued input at that boundary, then reevaluate continuation before promoting another. Promoting any new user input resets the selected agent's provider-turn allowance; a batch of steers resets it once.
 - Keep EventV2 replay owner claims separate from clustered Session execution ownership.
 - Keep the System Context algebra, registry, and built-ins in `src/system-context`; keep Context Source producers with their observed domains, and keep Session History selection plus Context Epoch persistence Session-owned.

CONTEXT.md

@@ -24,7 +24,7 @@ A durable chronological instruction that tells the model the newly effective sta
 _Avoid_: System update, system notification, raw text diff
 
 **Context Epoch**:
-The span during which one effective agent's initially rendered **System Context** remains immutable, ending at compaction or another baseline-replacing transition.
+The span during which one initially rendered **System Context** remains the immutable provider-cache baseline, ending at completed compaction, Session movement, or an incompatible context transition that requires a fresh baseline.
 
 **Baseline System Context**:
 The full **System Context** rendered at the start of a **Context Epoch**.
@@ -39,18 +39,41 @@ An expected temporary inability to observe a **Context Source** value; the runti
 **Safe Provider-Turn Boundary**:
 The point immediately before a provider call, after durable input promotion and any required tool settlement, where context changes may be admitted chronologically.
 
+**Admitted Prompt**:
+A durable user input accepted into the Session inbox but not yet included in **Session History**.
+
+**Prompt Promotion**:
+The durable transition that removes an **Admitted Prompt** from pending input and appends its user message to **Session History**.
+
+**Provider Turn**:
+One request to a model provider and the response projected from that request.
+
+**Session Drain**:
+One process-local execution span that promotes eligible input and runs required **Provider Turns** until no immediate continuation remains. A Session Drain has no durable identity or transcript boundary.
+
 **Model Tool Output**:
 The bounded projection of a Core-executed tool result persisted in Session history and replayed to the model. A tool may shape this projection semantically, but the Tool Registry enforces the final size limit.
 
 **Managed Tool Output File**:
 A temporary file created under OpenCode's shared tool-output directory to retain complete output that was too large for Session history.
 
-**Model Request Options**:
+**PTY Environment**:
-Provider-semantic model settings selected from the Catalog and active Session variant before the LLM protocol adapter encodes them for a provider request.
+The host-supplied environment overlay applied by the server when creating a PTY, observed for the request Location and resolved PTY working directory.
-_Avoid_: Request body, wire options
 
-**Generation Controls**:
+**OpenCode Client**:
-Provider-neutral sampling and output controls, partitioned from provider semantics and compatibility wire fields when model metadata enters the Catalog.
+The generated Effect API shared by networked and in-process consumers, executed through an `HttpClient` against the same `HttpApi` router and handlers.
+_Avoid_: Remote client
+
+**SDK Contract IR**:
+The runtime-neutral compiled representation of the authoritative `HttpApi`, preserving encoded and decoded type projections plus transport metadata so independent SDK emitters can choose their public value model and runtime interpreter.
+
+**Embedded OpenCode**:
+A scoped in-process host that structurally extends the **OpenCode Client**, supplies an in-memory HTTP transport, and exposes additional same-process capabilities directly.
+_Avoid_: Local implementation
+
+**Page**:
+A bounded ordered result containing `items` and opaque `previous` and `next` cursor links for navigating the same query in either direction.
+_Avoid_: Response envelope
 
 ## Relationships
 
@@ -64,6 +87,11 @@ Provider-neutral sampling and output controls, partitioned from provider semanti
 - Changes from multiple **Context Sources** admitted at one safe boundary combine into one **Mid-Conversation System Message**.
 - Context changes are sampled and admitted lazily at a **Safe Provider-Turn Boundary**, never pushed asynchronously when their source changes.
 - At a **Safe Provider-Turn Boundary**, newly promoted user input or settled tool results precede any combined **Mid-Conversation System Message**.
+- An **Admitted Prompt** is replayable pending input, not yet model-visible **Session History**.
+- **Prompt Promotion** atomically consumes the pending inbox entry and appends its model-visible user message.
+- Steering prompts promote at the next **Safe Provider-Turn Boundary** while the current **Session Drain** still requires continuation. Promoting any newly admitted user input resets the selected agent's provider-turn allowance; multiple prompts promoted at one boundary reset it once.
+- A queued prompt does not promote while the current **Session Drain** requires continuation. The runner promotes one queued prompt when the Session would otherwise become idle, then reevaluates continuation before promoting another.
+- A **Session Drain** is process-local coordination rather than a durable domain entity. Durable recovery must reason from prompts, projected history, provider attempts, and tool state rather than inventing an enclosing execution identity.
 - The first provider turn renders the latest complete **Baseline System Context** and initializes its **Context Snapshot** without emitting a redundant **Mid-Conversation System Message**; unavailable initial context blocks the turn instead of persisting an incomplete baseline.
 - Initial **System Context** preparation precedes the first durable input promotion so an unavailable baseline leaves that input pending and retryable; ordinary reconciliation remains after promotion.
 - Compaction starts a new **Context Epoch** with a freshly rendered **Baseline System Context** and **Context Snapshot**; prior **Mid-Conversation System Messages** remain durable audit history but leave projected model history.
@@ -72,33 +100,75 @@ Provider-neutral sampling and output controls, partitioned from provider semanti
 - Each **Context Source** loader returns one coherent typed value. `SystemContext.make(...)` hides that value type so differently typed sources compose uniformly. Its codec compares and stores that value; its pure renderers produce model-visible baseline, update, and removal text only when needed.
 - `SystemContext.initialize(...)` observes a composed **System Context** once and produces a fresh **Baseline System Context** with its **Context Snapshot**.
 - `SystemContext.reconcile(...)` observes a composed **System Context** once and returns exactly one next action: unchanged, updated, replacement ready, or replacement blocked.
-- `SystemContext.replace(...)` represents an explicit baseline-replacing transition such as compaction or model/provider switch; it either produces a fresh generation or reports that replacement is blocked by unavailable admitted context.
+- `SystemContext.replace(...)` renders a fresh generation after completed compaction or another baseline-replacing transition; it reports replacement blocked while previously admitted context is unavailable.
-- Context Epoch preparation retries until stable after optimistic revision mismatches so concurrent replacement requests cannot terminate an otherwise valid safe-boundary run.
 - **Unavailable Context** uses stale-while-revalidate semantics and is distinct from a successfully loaded absence, which may emit removal text.
 - Ordinary **Context Source** loaders return values directly; loaders that intentionally use stale-while-revalidate may explicitly return **Unavailable Context**.
 - Nested project instruction discovery after successful reads remains a follow-up; when implemented, discovered instructions must be admitted durably at the next **Safe Provider-Turn Boundary**.
 - Location-scoped services naturally re-resolve effective context when a moved session next runs in its destination location.
 - Moving a Session clears its active **Context Epoch**, so the destination must initialize a complete baseline before another prompt can promote.
-- Context Epoch initialization is fenced against the authoritative Session Location, so an old-Location runner cannot recreate source context after a concurrent move.
 - Instruction discovery, source identity, persistence, and file loading belong to the instruction service; the **System Context** abstraction only composes effectful producers and renders loaded values.
 - The first instruction-service slice observes global and upward project `AGENTS.md` files as one ordered aggregate **Context Source** at each **Safe Provider-Turn Boundary**.
 - Built-in and instruction context producers register through the **System Context Registry** with stable contribution keys. Plugin-defined context registration and hot-reload lifecycle remain a follow-up built on the same scoped registry seam.
 - Selected-agent available-skill guidance is a **Context Source** composed with Location-wide registry sources immediately before Context Epoch admission. It lists only names and descriptions permitted for that agent; skill bodies and locations are exposed only through the permission-checked `skill` tool.
-- Switching the selected agent requests **Context Epoch** replacement. A switch admitted after the current **Safe Provider-Turn Boundary** applies to the next provider turn while leaving the already-prepared baseline durable. Epoch creation is fenced against the authoritative effective agent, and retries re-observe the current agent.
+- The selected agent and model are sampled when a provider turn starts. Changes admitted after that boundary apply to the next provider turn and do not restart the current turn.
-- A cross-agent replacement must complete before another provider turn; unavailable admitted context blocks that replacement instead of exposing the previous agent's privileged baseline.
+- Selected-agent available-skill guidance remains a **Context Source**. An agent switch that changes that guidance produces a **Mid-Conversation System Message** while preserving the current baseline.
 - Local tool authorization and pending permission requests retain the effective agent of the provider turn that issued the call; a later agent switch cannot change that call's policy.
 - Context source changes never wake idle sessions; the next naturally scheduled **Safe Provider-Turn Boundary** loads and compares current values lazily.
 - Once admitted, a **Mid-Conversation System Message** remains durable even if the following provider attempt fails and is replayed unchanged on retry.
 - **Mid-Conversation System Messages** remain durable Session-message history; normal user-facing transcript surfaces may hide them.
 - The date **Context Source** initially preserves host-local calendar-date behavior; a configured user timezone may replace that default later.
 - A **Context Epoch** begins with one immutable **Baseline System Context**.
-- A **Context Epoch** durably records the effective agent that owns its **Baseline System Context**.
 - A **Baseline System Context** is stored durably and reused verbatim across process restarts within its **Context Epoch**.
 - A **Baseline System Context** durably preserves the exact joined text used for the active provider-cache prefix.
-- Compaction or a model/provider switch starts a new **Context Epoch** because the baseline can be replaced without preserving the prior provider cache.
+- Completed compaction starts a new **Context Epoch** on the next provider attempt, folding the current complete **System Context** into a fresh baseline and removing earlier **Mid-Conversation System Messages** from active model history.
-- A model/provider switch always starts a new **Context Epoch** while preserving chronological conversation history.
+- A model/provider switch preserves the current **Context Epoch** and chronological conversation history; the new selection applies to the next provider turn.
-- **Model Request Options** remain provider-semantic through Catalog resolution. The Session runner maps them into the LLM package's provider-option namespace; the selected protocol adapter alone owns provider wire encoding.
+- The **PTY Environment** is a server concern rather than a Core PTY concern. PTY creation merges caller values, then the host overlay, then Core-forced terminal invariants such as `TERM` and `OPENCODE_TERMINAL`.
-- **Generation Controls**, protocol-semantic **Model Request Options**, and compatibility request body fields are separate Catalog domains. A shared ingestion adapter partitions legacy and models.dev AI-SDK-shaped options before routing.
+- Networked and **Embedded OpenCode** use the same **OpenCode Client** and preserve the full HTTP encoding, routing, middleware, and decoding boundary; only the `HttpClient` transport differs.
+- The Effect-native network constructor obtains `HttpClient.HttpClient` from its environment so callers own transport selection, recording, tracing, retries, and tests. Convenience runtimes may provide a fetch transport separately.
+- Creating **Embedded OpenCode** is scoped. Closing its owning Scope releases the in-process server resources, database resources, registrations, and fibers.
+- **Embedded OpenCode** exposes shared client capabilities and embedded-only capabilities on one object; consumers do not navigate through a nested `.client` property.
+- The beta **OpenCode Client** currently uses plural consumer-facing capability groups such as `sessions`; whether the stable Session namespace should instead be singular `session` must be settled before stabilization. Internal server identifiers do not implicitly define public client names.
+- Server's concrete `HttpApi` is authoritative for shared **OpenCode Client** capabilities. Codegen compiles its Session group directly; the Effect runtime uses an equivalent Protocol-only projection so generated artifacts remain independent of Core and Server.
+- SDK generation reflects the public `HttpApi` once into an **SDK Contract IR**. Promise and Effect emitters share endpoint structure and transport metadata without being required to expose identical public values: an emitter may select encoded wire types, decoded domain types, compile-time brands, runtime validation, and its own execution abstraction independently.
+- The first Effect emitter is the rich projection: it exposes decoded Effect-native values, preserves brands and schema transformations, performs runtime schema decoding, and delegates transport interpretation to `HttpApiClient`. Lighter wire-shaped Effect output remains possible through another emitter policy rather than constraining the shared IR.
+- The rich Effect emitter regenerates private executable schemas when the **SDK Contract IR** proves that their transport semantics can be reproduced exactly. Contracts with authoritative custom transformations use the import-based Effect emitter against a Protocol-only client projection whose generated transport output is tested against Server's concrete API; the Promise emitter still derives zero-Effect structural wire types from the same IR.
+- `@opencode-ai/protocol` owns Session endpoint construction and middleware placement. Server supplies concrete middleware keys to produce the authoritative build-time API; the client projection supplies transport-only keys without importing Core or Server at runtime.
+- The first Promise emitter targets the same clean domain-oriented method organization rather than Hey API source compatibility. It returns unwrapped values directly, rejects declared and infrastructure failures, and begins with minimal client-level transport configuration; result wrappers, interceptors, and legacy generated signatures are outside the initial surface.
+- The first Promise emitter parses response syntax and trusts its generated structural types; it does not perform runtime structural validation. Malformed payload syntax fails, while a syntactically valid shape mismatch is not detected at the SDK boundary. Standalone validator generation remains an optional future emitter policy.
+- Declared Promise-client failures retain their tagged structural wire values and have generated type guards. Consumers do not depend on generated `Error` subclass identity, preserving discrimination across package copies and realms while remaining structurally aligned with Effect domain errors.
+- Promise-client infrastructure failures use one generated `ClientError` class with a structured reason such as transport failure, unexpected status, unsupported content type, or malformed response. Promise methods reject with either a tagged declared domain failure or `ClientError`, matching the Effect client's conceptual domain/infrastructure error division.
+- Promise methods accept a separate optional per-call transport-options argument containing `AbortSignal` and header overrides. Cancellation and transport metadata do not enter the domain input object; broader interceptor and response-mode APIs remain deferred.
+- Promise streaming methods return a lazy `AsyncIterable` directly rather than a Promise-wrapped stream object. Iteration opens the connection, `AbortSignal` cancels it, and ending iteration closes the underlying request; the Effect emitter analogously returns `Stream` directly.
+- Promise SSE connection establishment, declared HTTP failures, and infrastructure failures occur during `AsyncIterable` iteration, beginning with its first `next()` call, rather than during synchronous method construction.
+- Neither generated streaming runtime automatically reconnects after disconnection. Promise `AsyncIterable` and Effect `Stream` fail explicitly; live consumers refresh and resubscribe, while durable sequence-based resume remains explicit composition above the generated client.
+- Promise client construction is synchronous and network-free. It requires `baseUrl`, defaults to `globalThis.fetch`, accepts client-level headers, and merges them with per-call header overrides.
+- Effect client construction accepts an explicit `baseUrl` and obtains `HttpClient.HttpClient` from the Effect environment. It does not install fetch or duplicate per-call transport policy; callers transform/provide the client for headers, tracing, retries, recording, and tests, while fiber interruption owns cancellation.
+- Promise and Effect emitters each own their generated public type modules. The **SDK Contract IR**, not a physically shared generated type package, is the common source; this permits zero-Effect wire types and rich decoded Effect types to evolve independently.
+- Promise and Effect network clients ship from `@opencode-ai/client` behind isolated root and `/effect` exports. The root has no runtime path to Effect; `/effect` imports only Effect, Schema, and Protocol.
+- The Effect-native scoped host belongs to `@opencode-ai/sdk-next`, which will assume the existing `@opencode-ai/sdk` name after legacy consumers migrate. Client remains network-only and SDK depends one-way on Client.
+- SDK executes Server's assembled `HttpRouter` in memory. It opens no listener and performs no network I/O, while preserving Server routing, middleware, codecs, handlers, and errors.
+- The Effect Client and SDK re-export their decoded datatype facade from Schema so callers do not depend on internal package locations or Core's versioned names.
+- A capability intended for both networked and **Embedded OpenCode** belongs in the authoritative public `HttpApi`; embedded-only same-process capabilities extend **Embedded OpenCode** separately.
+- `sessions.events({ sessionID, after })` is a public durable Session event stream. It verifies the Session, replays durable events after the optional aggregate sequence, continues with newly committed durable events, excludes live-only fragments, and is transported as SSE in both networked and embedded modes.
+- `events.subscribe()` is a distinct public instance-wide live stream for Session and non-Session activity. It has no replay guarantee and includes connection, heartbeat, and instance-disposal lifecycle events; consumers recover from disconnection by refreshing authoritative state.
+- A Session ID is not an optional filter on `events.subscribe()`: instance-wide live events and durable Session events have different schemas, replay guarantees, cursors, lifecycle events, and failure behavior.
+- The initial common OpenCode Client does not expose server-global event aggregation. `events.subscribe()` is bounded to the connected OpenCode instance or workspace; any future cross-instance administrative stream requires a separately designed API.
+- `events.subscribe()` does not automatically reconnect after transport loss. The live-only stream fails with `ClientError`; consumers refresh authoritative state before explicitly opening a new subscription because events missed during disconnection cannot be replayed.
+- `sessions.events({ sessionID, after })` returns the generated HTTP client's cold durable event stream and does not build reconnection policy into the endpoint or client constructor. Transport loss fails the stream with `ClientError`. Callers may compose an explicit resuming stream above it by retaining the last observed durable sequence and opening a new subscription with `after`; any reusable resume helper remains a separate API design question.
+- The stable `sessions.list(...)` design returns a **Page** in both networked and **Embedded OpenCode**; embedded execution does not define a separate unbounded array-returning list operation. The beta client currently preserves the existing HTTP `{ data, cursor }` envelope until emitter-level Page projection is implemented.
+- Session list cursors are opaque branded values carrying continuation query and ordering state. Consumers pass them back unchanged and do not inspect storage anchors or encoded filter fields.
+- A Session list continuation accepts only its opaque cursor. Scope, filters, ordering, and page size are fixed by the initial query and carried by that cursor.
+- `sessions.messages(...)` returns a **Page** and uses the same cursor discipline as `sessions.list(...)`: the initial request supplies `sessionID`, ordering, and page size; continuation supplies `sessionID` plus only an opaque branded message cursor carrying ordering, page size, direction, and message anchor. Using a cursor with another Session is invalid.
+- `sessions.message({ sessionID, messageID })` is a required resource lookup. An unknown Session fails with `SessionNotFoundError`; a known Session with an absent or differently owned message fails with `SessionMessageNotFoundError` without disclosing cross-Session ownership. Absence is not represented as `undefined` across the public HTTP boundary.
+- `sessions.interrupt({ sessionID })` first verifies that the durable Session exists, failing with `SessionNotFoundError` otherwise. For a known Session, interruption is idempotent: idle, already-settled, or locally unowned execution is a no-op.
+- `sessions.context({ sessionID })` preserves the existing message-only operation. It returns projected conversational messages selected as Session context; it does not include or represent the complete provider request context, whose baseline system context and other contributions remain separate.
+- **Open question**: Should a future, separately named operation expose the complete provider request context, including baseline system context, selected source contributions, and context-epoch metadata?
+- `sessions.prompt(...)` exposes `resume?: boolean`. Omitting it preserves durable admission followed by an advisory execution wake; `resume: false` requests durable admit-only behavior.
+- The public operation remains `sessions.prompt(...)`; `SessionInput.admit` is the internal primitive, while the public `Admission` result and `resume` option express its durable admission semantics.
+- `sessions.create(...)` accepts an optional `location`. Omission resolves through the connected OpenCode instance's default or current location; an explicit value selects a known location. Networked and embedded transports use the same handler semantics.
+- `sessions.switchAgent({ sessionID, agent })` is part of the common client alongside `sessions.switchModel(...)`. It affects subsequent Session activity and fails with `SessionNotFoundError` for an unknown Session.
+- The **Embedded OpenCode** Layer delegates to the same scoped creation path; it does not define a second implementation.
+- A **PTY Environment** adapter observes plugins in the request Location while passing the resolved PTY working directory to the hook; standalone servers use an empty adapter.
 - A **Mid-Conversation System Message** lowers to the provider's native chronological instruction role when supported and to a wrapped chronological fallback otherwise.
 - When the effective aggregate instruction set changes, its **Mid-Conversation System Message** includes the complete current ordered set and supersedes the prior aggregate value; when no ambient instructions remain, the message states that previously loaded instructions no longer apply.
 - Ambient project instruction discovery honors `OPENCODE_DISABLE_PROJECT_CONFIG`; global instructions remain eligible.
@@ -114,6 +184,23 @@ Provider-neutral sampling and output controls, partitioned from provider semanti
 - **Managed Tool Output Files** use globally unique names in one shared flat directory. Their absolute paths are readable and searchable by ordinary tools; other absolute paths remain outside Location-scoped filesystem authority.
 - Provider-executed tool results remain provider-native transcript facts outside generic Tool Registry bounding. Their context control requires provider-aware pruning or compaction because some providers require exact structured round-trip payloads.
 
+## Client contract architecture
+
+Semantic values that mean the same thing internally and publicly live in the lightweight Schema leaf. Core consumes Schema for domain behavior; Protocol composes Schema values into paths, payloads, envelopes, errors, cursors, and streams; Server imports both, hosts Protocol's exact groups, and owns protocol/domain adaptation. The root Promise client remains zero-Effect, `/effect` depends on Effect plus Schema and Protocol, and `@opencode-ai/sdk-next` composes the scoped in-process host above Client, Core, and Server.
+
+Shared public records are plain objects declared with `Schema.Struct`. A same-name inferred interface gives object records readable TypeScript signatures without constructors, prototypes, or nominal identity; unions retain explicit type aliases.
+
+Before stabilizing the client API:
+
+- Keep additional public schemas in Schema and additional network groups in Protocol; neither package may transitively load databases, Drizzle, Session execution, providers, watchers, native modules, or WASM.
+- Keep concrete Location middleware keys in Server while Protocol owns their placement. Client projections may supply transport-only keys, but must prove generated equivalence with Server's concrete API.
+- Project the existing list response envelope to the stable client **Page** shape and enforce separate initial-query and cursor-continuation inputs without changing the hosted V2 wire contract.
+- Settle the stable consumer namespace (`session` versus the current beta `sessions`) and use an explicit codegen annotation if the consumer name should differ from the server group identifier.
+- Preserve V2 route paths, operation IDs, codecs, errors, middleware behavior, and OpenAPI output while making this change.
+- Preserve browser-safe `@opencode-ai/client` and `@opencode-ai/client/effect` bundles through import-boundary tests.
+- Define embedded-host placement before supporting multiple hosts over one database. Hosts that share durable Session storage must also share process-local Session execution coordination, or each host must receive isolated storage explicitly.
+- Keep an embedded request scope alive until any streamed response body finishes. The initial non-streaming Session surface does not exercise this lifetime boundary; Session and instance event streams must do so before joining the embedded client.
+
 ## Example dialogue
 
 > **Dev:** "The date changed while the session was active. Should the **Mid-Conversation System Message** say what the old date was?"

bun.lock

@@ -29,12 +29,14 @@
     },
     "packages/app": {
       "name": "@opencode-ai/app",
-      "version": "1.17.4",
+      "version": "1.17.11",
       "dependencies": {
         "@kobalte/core": "catalog:",
         "@opencode-ai/core": "workspace:*",
         "@opencode-ai/sdk": "workspace:*",
+        "@opencode-ai/session-ui": "workspace:*",
         "@opencode-ai/ui": "workspace:*",
+        "@pierre/trees": "1.0.0-beta.4",
         "@sentry/solid": "catalog:",
         "@shikijs/transformers": "3.9.2",
         "@solid-primitives/active-element": "2.1.3",
@@ -52,6 +54,7 @@
         "@solidjs/meta": "catalog:",
         "@solidjs/router": "catalog:",
         "@tanstack/solid-query": "5.91.4",
+        "@tanstack/solid-virtual": "catalog:",
         "@thisbeyond/solid-dnd": "0.7.5",
         "diff": "catalog:",
         "effect": "catalog:",
@@ -65,7 +68,6 @@
         "solid-js": "catalog:",
         "solid-list": "catalog:",
         "tailwindcss": "catalog:",
-        "virtua": "catalog:",
       },
       "devDependencies": {
         "@happy-dom/global-registrator": "20.0.11",
@@ -85,7 +87,7 @@
     },
     "packages/cli": {
       "name": "@opencode-ai/cli",
-      "version": "1.17.4",
+      "version": "1.17.11",
       "bin": {
         "lildax": "./bin/lildax.cjs",
       },
@@ -108,9 +110,32 @@
         "@typescript/native-preview": "catalog:",
       },
     },
+    "packages/client": {
+      "name": "@opencode-ai/client",
+      "dependencies": {
+        "@opencode-ai/protocol": "workspace:*",
+        "@opencode-ai/schema": "workspace:*",
+      },
+      "devDependencies": {
+        "@effect/platform-node": "catalog:",
+        "@opencode-ai/core": "workspace:*",
+        "@opencode-ai/httpapi-codegen": "workspace:*",
+        "@opencode-ai/server": "workspace:*",
+        "@tsconfig/bun": "catalog:",
+        "@types/bun": "catalog:",
+        "@typescript/native-preview": "catalog:",
+        "effect": "catalog:",
+      },
+      "peerDependencies": {
+        "effect": "4.0.0-beta.83",
+      },
+      "optionalPeers": [
+        "effect",
+      ],
+    },
     "packages/console/app": {
       "name": "@opencode-ai/console-app",
-      "version": "1.17.4",
+      "version": "1.17.11",
       "dependencies": {
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         "@ibm/plex": "6.4.1",
@@ -146,7 +171,7 @@
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       "name": "@opencode-ai/console-core",
-      "version": "1.17.4",
+      "version": "1.17.11",
       "dependencies": {
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@@ -173,7 +198,7 @@
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       "name": "@opencode-ai/console-function",
-      "version": "1.17.4",
+      "version": "1.17.11",
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         "@ai-sdk/openai": "3.0.48",
@@ -195,7 +220,7 @@
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       "name": "@opencode-ai/console-mail",
-      "version": "1.17.4",
+      "version": "1.17.11",
       "dependencies": {
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@@ -219,7 +244,7 @@
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       "name": "@opencode-ai/console-support",
-      "version": "1.17.4",
+      "version": "1.17.11",
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@@ -239,7 +264,7 @@
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-      "version": "1.17.4",
+      "version": "1.17.11",
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@@ -275,6 +300,8 @@
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         "@opencode-ai/effect-sqlite-node": "workspace:*",
         "@opencode-ai/llm": "workspace:*",
+        "@opencode-ai/plugin": "workspace:*",
+        "@opencode-ai/schema": "workspace:*",
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@@ -330,7 +357,7 @@
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@@ -384,7 +411,7 @@
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@@ -398,7 +425,7 @@
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-      "version": "1.17.4",
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@@ -410,10 +437,11 @@
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       "name": "@opencode-ai/enterprise",
-      "version": "1.17.4",
+      "version": "1.17.11",
       "dependencies": {
         "@hono/standard-validator": "catalog:",
         "@opencode-ai/core": "workspace:*",
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         "@pierre/diffs": "catalog:",
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@@ -441,7 +469,7 @@
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+      "version": "1.17.11",
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@@ -457,10 +485,10 @@
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       "name": "@opencode-ai/http-recorder",
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@@ -471,13 +499,26 @@
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       "peerDependencies": {
-        "effect": "4.0.0-beta.74",
+        "effect": "4.0.0-beta.83",
+      },
+    },
+    "packages/httpapi-codegen": {
+      "name": "@opencode-ai/httpapi-codegen",
+      "dependencies": {
+        "effect": "catalog:",
+        "prettier": "3.6.2",
+      },
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+        "@types/bun": "catalog:",
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     "packages/llm": {
       "name": "@opencode-ai/llm",
-      "version": "1.17.4",
+      "version": "1.17.11",
       "dependencies": {
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@@ -494,7 +535,7 @@
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-      "version": "1.17.4",
+      "version": "1.17.11",
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@@ -533,6 +574,8 @@
         "@openauthjs/openauth": "catalog:",
         "@opencode-ai/llm": "workspace:*",
         "@opencode-ai/plugin": "workspace:*",
+        "@opencode-ai/protocol": "workspace:*",
+        "@opencode-ai/schema": "workspace:*",
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@@ -622,8 +665,9 @@
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-      "version": "1.17.4",
+      "version": "1.17.11",
       "dependencies": {
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         "effect": "catalog:",
         "zod": "catalog:",
@@ -648,6 +692,29 @@
         "@opentui/solid",
       ],
     },
+    "packages/protocol": {
+      "name": "@opencode-ai/protocol",
+      "dependencies": {
+        "@opencode-ai/schema": "workspace:*",
+        "effect": "catalog:",
+      },
+      "devDependencies": {
+        "@tsconfig/bun": "catalog:",
+        "@types/bun": "catalog:",
+        "@typescript/native-preview": "catalog:",
+      },
+    },
+    "packages/schema": {
+      "name": "@opencode-ai/schema",
+      "dependencies": {
+        "effect": "catalog:",
+      },
+      "devDependencies": {
+        "@tsconfig/bun": "catalog:",
+        "@types/bun": "catalog:",
+        "@typescript/native-preview": "catalog:",
+      },
+    },
     "packages/script": {
       "name": "@opencode-ai/script",
       "dependencies": {
@@ -658,9 +725,23 @@
         "@types/semver": "^7.5.8",
       },
     },
+    "packages/sdk-next": {
+      "name": "@opencode-ai/sdk-next",
+      "dependencies": {
+        "@opencode-ai/client": "workspace:*",
+        "@opencode-ai/core": "workspace:*",
+        "@opencode-ai/server": "workspace:*",
+        "effect": "catalog:",
+      },
+      "devDependencies": {
+        "@tsconfig/bun": "catalog:",
+        "@types/bun": "catalog:",
+        "@typescript/native-preview": "catalog:",
+      },
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-      "version": "1.17.4",
+      "version": "1.17.11",
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@@ -675,9 +756,10 @@
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-      "version": "1.17.4",
+      "version": "1.17.11",
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         "@opencode-ai/core": "workspace:*",
+        "@opencode-ai/protocol": "workspace:*",
         "drizzle-orm": "catalog:",
         "effect": "catalog:",
       },
@@ -687,9 +769,53 @@
         "@typescript/native-preview": "catalog:",
       },
     },
+    "packages/session-ui": {
+      "name": "@opencode-ai/session-ui",
+      "version": "1.17.11",
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+        "@opencode-ai/sdk": "workspace:*",
+        "@opencode-ai/ui": "workspace:*",
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+        "@solid-primitives/event-listener": "2.4.5",
+        "@solid-primitives/media": "2.3.3",
+        "@solid-primitives/resize-observer": "2.1.3",
+        "@solidjs/meta": "catalog:",
+        "@solidjs/router": "catalog:",
+        "diff": "catalog:",
+        "dompurify": "3.3.1",
+        "fuzzysort": "catalog:",
+        "katex": "0.16.27",
+        "luxon": "catalog:",
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+        "marked-katex-extension": "5.1.6",
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+        "morphdom": "2.7.8",
+        "motion": "12.34.5",
+        "remeda": "catalog:",
+        "remend": "catalog:",
+        "shiki": "catalog:",
+        "solid-js": "catalog:",
+        "solid-list": "catalog:",
+        "strip-ansi": "7.1.2",
+      },
+      "devDependencies": {
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+        "@types/bun": "catalog:",
+        "@types/katex": "0.16.7",
+        "@types/luxon": "catalog:",
+        "@typescript/native-preview": "catalog:",
+        "typescript": "catalog:",
+        "vite": "catalog:",
+      },
+    },
     "packages/slack": {
       "name": "@opencode-ai/slack",
-      "version": "1.17.4",
+      "version": "1.17.11",
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@@ -702,7 +828,7 @@
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-      "version": "1.17.4",
+      "version": "1.17.11",
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@@ -735,7 +861,7 @@
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-      "version": "1.17.4",
+      "version": "1.17.11",
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@@ -754,7 +880,7 @@
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       "name": "@opencode-ai/stats-server",
-      "version": "1.17.4",
+      "version": "1.17.11",
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         "@effect/platform-node": "catalog:",
@@ -773,6 +899,7 @@
     "packages/storybook": {
       "name": "@opencode-ai/storybook",
       "devDependencies": {
+        "@opencode-ai/session-ui": "workspace:*",
         "@opencode-ai/ui": "workspace:*",
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@@ -794,7 +921,7 @@
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       "name": "@opencode-ai/tui",
-      "version": "1.17.4",
+      "version": "1.17.11",
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@@ -821,19 +948,16 @@
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       "name": "@opencode-ai/ui",
-      "version": "1.17.4",
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-        "@opencode-ai/core": "workspace:*",
-        "@opencode-ai/sdk": "workspace:*",
         "@pierre/diffs": "catalog:",
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@@ -849,28 +973,32 @@
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         "solid-list": "catalog:",
         "strip-ansi": "7.1.2",
-        "virtua": "catalog:",
       },
       "devDependencies": {
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         "@tailwindcss/vite": "catalog:",
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         "@types/bun": "catalog:",
         "@types/katex": "0.16.7",
         "@types/luxon": "catalog:",
         "@typescript/native-preview": "catalog:",
+        "solid-js": "catalog:",
         "tailwindcss": "catalog:",
         "typescript": "catalog:",
         "vite": "catalog:",
         "vite-plugin-icons-spritesheet": "3.0.1",
         "vite-plugin-solid": "catalog:",
       },
+      "peerDependencies": {
+        "@solidjs/meta": "^0.29.0",
+        "solid-js": "^1.9.0",
+      },
     },
     "packages/web": {
       "name": "@opencode-ai/web",
-      "version": "1.17.4",
+      "version": "1.17.11",
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@@ -912,15 +1040,18 @@
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   "patchedDependencies": {
-    "solid-js@1.9.10": "patches/solid-js@1.9.10.patch",
+    "@pierre/trees@1.0.0-beta.4": "patches/@pierre%2Ftrees@1.0.0-beta.4.patch",
-    "virtua@0.49.1": "patches/virtua@0.49.1.patch",
+    "@modelcontextprotocol/sdk@1.29.0": "patches/@modelcontextprotocol%2Fsdk@1.29.0.patch",
     "gcp-metadata@8.1.2": "patches/gcp-metadata@8.1.2.patch",
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     "@silvia-odwyer/photon-node@0.3.4": "patches/@silvia-odwyer%2Fphoton-node@0.3.4.patch",
+    "@tanstack/solid-virtual@3.13.28": "patches/@tanstack%2Fsolid-virtual@3.13.28.patch",
+    "solid-js@1.9.10": "patches/solid-js@1.9.10.patch",
+    "@ai-sdk/google@3.0.73": "patches/@ai-sdk%2Fgoogle@3.0.73.patch",
+    "@ai-sdk/xai@3.0.82": "patches/@ai-sdk%2Fxai@3.0.82.patch",
+    "@tanstack/virtual-core@3.17.0": "patches/@tanstack%2Fvirtual-core@3.17.0.patch",
+    "pacote@21.5.0": "patches/pacote@21.5.0.patch",
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@@ -931,9 +1062,9 @@
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@@ -944,15 +1075,17 @@
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     "@opentui/keymap": "0.3.4",
     "@opentui/solid": "0.3.4",
-    "@pierre/diffs": "1.1.0-beta.18",
+    "@pierre/diffs": "1.2.10",
     "@playwright/test": "1.59.1",
     "@sentry/solid": "10.36.0",
     "@sentry/vite-plugin": "4.6.0",
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     "@solidjs/start": "https://pkg.pr.new/@solidjs/start@dfb2020",
     "@tailwindcss/vite": "4.1.11",
+    "@tanstack/solid-virtual": "3.13.28",
     "@tsconfig/bun": "1.0.9",
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@@ -967,7 +1100,7 @@
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@@ -978,14 +1111,13 @@
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+    "@effect/platform-node-shared": ["@effect/platform-node-shared@4.0.0-beta.83", "", { "dependencies": { "@types/ws": "^8.18.1", "ws": "^8.20.0" }, "peerDependencies": { "effect": "^4.0.0-beta.83" } }, "sha512-+yr/+PJmKTgmJq1QOINSBPgLu7Cjc4CZcotBXnGjyDEizOmimFgTkN2B8PBJAKIKUWYWfobjXqC+58/VhhPKAw=="],
 
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+    "@effect/sql-sqlite-bun": ["@effect/sql-sqlite-bun@4.0.0-beta.83", "", { "peerDependencies": { "effect": "^4.0.0-beta.83" } }, "sha512-6OaxLsWffxkh9pXYUSyj/AxjVb9URY2rG9U6atjxClWy30Jx77R9Pm3Rrc7cQ63kQurePavEw1bQbzQ/SILiQQ=="],
 
     "@electron/asar": ["@electron/asar@3.4.1", "", { "dependencies": { "commander": "^5.0.0", "glob": "^7.1.6", "minimatch": "^3.0.4" }, "bin": { "asar": "bin/asar.js" } }, "sha512-i4/rNPRS84t0vSRa2HorerGRXWyF4vThfHesw0dmcWHp+cspK743UanA0suA5Q5y8kzY2y6YKrvbIUn69BCAiA=="],
 
@@ -1767,6 +1899,8 @@
 
     "@opencode-ai/cli": ["@opencode-ai/cli@workspace:packages/cli"],
 
+    "@opencode-ai/client": ["@opencode-ai/client@workspace:packages/client"],
+
     "@opencode-ai/console-app": ["@opencode-ai/console-app@workspace:packages/console/app"],
 
     "@opencode-ai/console-core": ["@opencode-ai/console-core@workspace:packages/console/core"],
@@ -1793,16 +1927,26 @@
 
     "@opencode-ai/http-recorder": ["@opencode-ai/http-recorder@workspace:packages/http-recorder"],
 
+    "@opencode-ai/httpapi-codegen": ["@opencode-ai/httpapi-codegen@workspace:packages/httpapi-codegen"],
+
     "@opencode-ai/llm": ["@opencode-ai/llm@workspace:packages/llm"],
 
     "@opencode-ai/plugin": ["@opencode-ai/plugin@workspace:packages/plugin"],
 
+    "@opencode-ai/protocol": ["@opencode-ai/protocol@workspace:packages/protocol"],
+
+    "@opencode-ai/schema": ["@opencode-ai/schema@workspace:packages/schema"],
+
     "@opencode-ai/script": ["@opencode-ai/script@workspace:packages/script"],
 
     "@opencode-ai/sdk": ["@opencode-ai/sdk@workspace:packages/sdk/js"],
 
+    "@opencode-ai/sdk-next": ["@opencode-ai/sdk-next@workspace:packages/sdk-next"],
+
     "@opencode-ai/server": ["@opencode-ai/server@workspace:packages/server"],
 
+    "@opencode-ai/session-ui": ["@opencode-ai/session-ui@workspace:packages/session-ui"],
+
     "@opencode-ai/slack": ["@opencode-ai/slack@workspace:packages/slack"],
 
     "@opencode-ai/stats-app": ["@opencode-ai/stats-app@workspace:packages/stats/app"],
@@ -2121,9 +2265,13 @@
 
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+    "@pierre/diffs": ["@pierre/diffs@1.2.10", "", { "dependencies": { "@pierre/theme": "1.0.3", "@pierre/theming": "0.0.1", "@shikijs/transformers": "^3.0.0 || ^4.0.0", "diff": "8.0.3", "hast-util-to-html": "9.0.5", "lru_map": "0.4.1", "shiki": "^3.0.0 || ^4.0.0" }, "peerDependencies": { "react": "^18.3.1 || ^19.0.0", "react-dom": "^18.3.1 || ^19.0.0" } }, "sha512-rPeAmDWarxFVTQpaf4y6wTxjZxU44xKJKoJti2zU21P06DVd9nRHZX+xSIObLB307Qjpaesyb1x/j0z94t7vLw=="],
 
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+
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+
+    "@pierre/trees": ["@pierre/trees@1.0.0-beta.4", "", { "dependencies": { "preact": "11.0.0-beta.0", "preact-render-to-string": "6.6.5" }, "peerDependencies": { "react": "^18.3.1 || ^19.0.0", "react-dom": "^18.3.1 || ^19.0.0" } }, "sha512-OfT1yk9ne8Te5+GB5zUY8yqE6B8BqjBHQJleH4lu8ltwNpoocZl4vXt1AzlEExpxI/pp+AFX5QG+lR3JjtTEag=="],
 
     "@pinojs/redact": ["@pinojs/redact@0.4.0", "", {}, "sha512-k2ENnmBugE/rzQfEcdWHcCY+/FM3VLzH9cYEsbdsoqrvzAKRhUZeRNhAZvB8OitQJ1TBed3yqWtdjzS6wJKBwg=="],
 
@@ -2327,13 +2475,17 @@
 
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+    "@shikijs/engine-javascript": ["@shikijs/engine-javascript@4.2.0", "", { "dependencies": { "@shikijs/types": "4.2.0", "@shikijs/vscode-textmate": "^10.0.2", "oniguruma-to-es": "^4.3.6" } }, "sha512-fjETeq1k5ffyXqRgS6+3hpvqseLalp1kjNfRbXpUgWR8FpZ1CmQfiNHovc5lncYjt/Vg5JK/WJEmLahjwMa0og=="],
 
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+    "@shikijs/engine-oniguruma": ["@shikijs/engine-oniguruma@4.2.0", "", { "dependencies": { "@shikijs/types": "4.2.0", "@shikijs/vscode-textmate": "^10.0.2" } }, "sha512-hTorK1dffPkpbMUk6Z+828PgRo7d07HbnizoP0hNPFjhxMHctj0Px/qoHeGMYafc6ju+u9iMldN4JbVzNQM++g=="],
 
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+    "@shikijs/primitive": ["@shikijs/primitive@4.2.0", "", { "dependencies": { "@shikijs/types": "4.2.0", "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-NOq+DtUkVBJtZMVXL5A0vI0Xk8nvDYaXetFHSJFlOqjDZIVhIPRYFdGkSoElDqNuegikcc3A76SNUa8dTqtAYA=="],
+
+    "@shikijs/stream": ["@shikijs/stream@4.2.0", "", { "dependencies": { "@shikijs/core": "4.2.0" }, "peerDependencies": { "react": "^19.0.0", "solid-js": "^1.9.0", "vue": "^3.2.0" }, "optionalPeers": ["react", "solid-js", "vue"] }, "sha512-OaMUUStdIZ+l1GJad9uVACR3Xvgwo4y+RmEuDMU62cgFMMg1IBCaIFmvzAR2HiCpGtwoc/qPfpNnP+ivgrPXZg=="],
+
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     "@shikijs/transformers": ["@shikijs/transformers@3.9.2", "", { "dependencies": { "@shikijs/core": "3.9.2", "@shikijs/types": "3.9.2" } }, "sha512-MW5hT4TyUp6bNAgTExRYLk1NNasVQMTCw1kgbxHcEC0O5cbepPWaB+1k+JzW9r3SP2/R8kiens8/3E6hGKfgsA=="],
 
@@ -2577,6 +2729,10 @@
 
     "@tanstack/solid-query": ["@tanstack/solid-query@5.91.4", "", { "dependencies": { "@tanstack/query-core": "5.91.2" }, "peerDependencies": { "solid-js": "^1.6.0" } }, "sha512-oCEgn8iT7WnF/7ISd7usBpUK1C9EdvQfg8ZUpKNKZ4edVClICZrCX6f3/Bp8ZlwQnL21KLc2rp+CejEuehlRxg=="],
 
+    "@tanstack/solid-virtual": ["@tanstack/solid-virtual@3.13.28", "", { "dependencies": { "@tanstack/virtual-core": "3.17.0" }, "peerDependencies": { "solid-js": "^1.3.0" } }, "sha512-kRuOEL5orH/rzGgxNgfgOttsgV6cgrUeupVtrHMITb5p0rZ3hnxhbu/lhKcR9+7x+EJdfUtJIb2CVC85mlw15g=="],
+
+    "@tanstack/virtual-core": ["@tanstack/virtual-core@3.17.0", "", {}, "sha512-gOxY/hFkPh/XQYhnThBHzkbkX3Ed+z/iushyz+R+JAr213aXxUDgQoTgTdrDpBSRsjFM73P/KfUyWmaF9WHMkQ=="],
+
     "@testing-library/dom": ["@testing-library/dom@10.4.1", "", { "dependencies": { "@babel/code-frame": "^7.10.4", "@babel/runtime": "^7.12.5", "@types/aria-query": "^5.0.1", "aria-query": "5.3.0", "dom-accessibility-api": "^0.5.9", "lz-string": "^1.5.0", "picocolors": "1.1.1", "pretty-format": "^27.0.2" } }, "sha512-o4PXJQidqJl82ckFaXUeoAW+XysPLauYI43Abki5hABd853iMhitooc6znOnczgbTYmEP6U6/y1ZyKAIsvMKGg=="],
 
     "@testing-library/jest-dom": ["@testing-library/jest-dom@6.9.1", "", { "dependencies": { "@adobe/css-tools": "^4.4.0", "aria-query": "^5.0.0", "css.escape": "^1.5.1", "dom-accessibility-api": "^0.6.3", "picocolors": "^1.1.1", "redent": "^3.0.0" } }, "sha512-zIcONa+hVtVSSep9UT3jZ5rizo2BsxgyDYU7WFD5eICBE7no3881HGeb/QkGfsJs6JTkY1aQhT7rIPC7e+0nnA=="],
@@ -3349,7 +3505,7 @@
 
     "ee-first": ["ee-first@1.1.1", "", {}, "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow=="],
 
-    "effect": ["effect@4.0.0-beta.74", "", { "dependencies": { "@standard-schema/spec": "^1.1.0", "fast-check": "^4.8.0", "find-my-way-ts": "^0.1.6", "ini": "^7.0.0", "kubernetes-types": "^1.30.0", "msgpackr": "^2.0.1", "multipasta": "^0.2.7", "toml": "^4.1.1", "uuid": "^14.0.0", "yaml": "^2.9.0" } }, "sha512-Yx+Kh12U+i2FmjwEfKs+ePFmpMd43RPD1oGqc/VraSS9bYzvF0Ff3PojwEFEVEewp8xc92Uxu28gTspU4qyvHA=="],
+    "effect": ["effect@4.0.0-beta.83", "", { "dependencies": { "@standard-schema/spec": "^1.1.0", "fast-check": "^4.8.0", "find-my-way-ts": "^0.1.6", "ini": "^7.0.0", "kubernetes-types": "^1.30.0", "msgpackr": "^2.0.1", "multipasta": "^0.2.7", "toml": "^4.1.1", "uuid": "^14.0.0", "yaml": "^2.9.0" } }, "sha512-0wsak8RtgGAr9UWSbVDgJHZcUqMSvicHcvaZv1MbMM7MCGgW4Rn/137J1MHQbwYPcwYGxT/IqehFd+UbYuj78w=="],
 
     "ejs": ["ejs@3.1.10", "", { "dependencies": { "jake": "^10.8.5" }, "bin": { "ejs": "bin/cli.js" } }, "sha512-UeJmFfOrAQS8OJWPZ4qtgHyWExa088/MtK5UEyoJGFH67cDEXkZSviOiKRCZ4Xij0zxI3JECgYs3oKx+AizQBA=="],
 
@@ -4561,6 +4717,10 @@
 
     "powershell-utils": ["powershell-utils@0.1.0", "", {}, "sha512-dM0jVuXJPsDN6DvRpea484tCUaMiXWjuCn++HGTqUWzGDjv5tZkEZldAJ/UMlqRYGFrD/etByo4/xOuC/snX2A=="],
 
+    "preact": ["preact@11.0.0-beta.0", "", {}, "sha512-IcODoASASYwJ9kxz7+MJeiJhvLriwSb4y4mHIyxdgaRZp6kPUud7xytrk/6GZw8U3y6EFJaRb5wi9SrEK+8+lg=="],
+
+    "preact-render-to-string": ["preact-render-to-string@6.6.5", "", { "peerDependencies": { "preact": ">=10 || >= 11.0.0-0" } }, "sha512-O6MHzYNIKYaiSX3bOw0gGZfEbOmlIDtDfWwN1JJdc/T3ihzRT6tGGSEWE088dWrEDGa1u7101q+6fzQnO9XCPA=="],
+
     "prettier": ["prettier@3.6.2", "", { "bin": { "prettier": "bin/prettier.cjs" } }, "sha512-I7AIg5boAr5R0FFtJ6rCfD+LFsWHp81dolrFD8S79U9tb8Az2nGrJncnMSnys+bpQJfRUzqs9hnA81OAA3hCuQ=="],
 
     "pretty": ["pretty@2.0.0", "", { "dependencies": { "condense-newlines": "^0.2.1", "extend-shallow": "^2.0.1", "js-beautify": "^1.6.12" } }, "sha512-G9xUchgTEiNpormdYBl+Pha50gOUovT18IvAe7EYMZ1/f9W/WWMPRn+xI68yXNMUk3QXHDwo/1wV/4NejVNe1w=="],
@@ -4843,7 +5003,7 @@
 
     "shebang-regex": ["shebang-regex@3.0.0", "", {}, "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A=="],
 
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+    "shiki": ["shiki@4.2.0", "", { "dependencies": { "@shikijs/core": "4.2.0", "@shikijs/engine-javascript": "4.2.0", "@shikijs/engine-oniguruma": "4.2.0", "@shikijs/langs": "4.2.0", "@shikijs/themes": "4.2.0", "@shikijs/types": "4.2.0", "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-hjNax6o/ylDy9lefQEaSDtzaT3iVNtZ3WmpQnbuQNoG4xvnSKf2kSKbihZVO4JRG1TTMejs7CmNRYlWgAL66pQ=="],
 
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@@ -5253,8 +5413,6 @@
 
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-
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@@ -5503,6 +5661,8 @@
 
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+
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@@ -5807,6 +5967,8 @@
 
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+
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@@ -5841,13 +6003,17 @@
 
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+    "@shikijs/engine-javascript/@shikijs/types": ["@shikijs/types@4.2.0", "", { "dependencies": { "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-VT/MKtlpOhEPZloSH3Pb9WCZEBDoQVMa9jedp5UAwmJOar1DVc9DRODAxmYPW9M93IK4ryuqRejFfmlvlVDemw=="],
 
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+    "@shikijs/langs/@shikijs/types": ["@shikijs/types@4.2.0", "", { "dependencies": { "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-VT/MKtlpOhEPZloSH3Pb9WCZEBDoQVMa9jedp5UAwmJOar1DVc9DRODAxmYPW9M93IK4ryuqRejFfmlvlVDemw=="],
 
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+    "@shikijs/primitive/@shikijs/types": ["@shikijs/types@4.2.0", "", { "dependencies": { "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-VT/MKtlpOhEPZloSH3Pb9WCZEBDoQVMa9jedp5UAwmJOar1DVc9DRODAxmYPW9M93IK4ryuqRejFfmlvlVDemw=="],
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     "@slack/bolt/path-to-regexp": ["path-to-regexp@8.4.2", "", {}, "sha512-qRcuIdP69NPm4qbACK+aDogI5CBDMi1jKe0ry5rSQJz8JVLsC7jV8XpiJjGRLLol3N+R5ihGYcrPLTno6pAdBA=="],
 
@@ -5873,6 +6039,10 @@
 
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+    "@standard-community/standard-json/effect": ["effect@4.0.0-beta.74", "", { "dependencies": { "@standard-schema/spec": "^1.1.0", "fast-check": "^4.8.0", "find-my-way-ts": "^0.1.6", "ini": "^7.0.0", "kubernetes-types": "^1.30.0", "msgpackr": "^2.0.1", "multipasta": "^0.2.7", "toml": "^4.1.1", "uuid": "^14.0.0", "yaml": "^2.9.0" } }, "sha512-Yx+Kh12U+i2FmjwEfKs+ePFmpMd43RPD1oGqc/VraSS9bYzvF0Ff3PojwEFEVEewp8xc92Uxu28gTspU4qyvHA=="],
+
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+
     "@storybook/csf-plugin/unplugin": ["unplugin@2.3.11", "", { "dependencies": { "@jridgewell/remapping": "^2.3.5", "acorn": "^8.15.0", "picomatch": "^4.0.3", "webpack-virtual-modules": "^0.6.2" } }, "sha512-5uKD0nqiYVzlmCRs01Fhs2BdkEgBS3SAVP6ndrBsuK42iC2+JHyxM05Rm9G8+5mkmRtzMZGY8Ct5+mliZxU/Ww=="],
 
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@@ -5957,6 +6127,8 @@
 
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+    "astro/shiki": ["shiki@3.20.0", "", { "dependencies": { "@shikijs/core": "3.20.0", "@shikijs/engine-javascript": "3.20.0", "@shikijs/engine-oniguruma": "3.20.0", "@shikijs/langs": "3.20.0", "@shikijs/themes": "3.20.0", "@shikijs/types": "3.20.0", "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-kgCOlsnyWb+p0WU+01RjkCH+eBVsjL1jOwUYWv0YDWkM2/A46+LDKVs5yZCUXjJG6bj4ndFoAg5iLIIue6dulg=="],
+
     "astro/unstorage": ["unstorage@1.17.5", "", { "dependencies": { "anymatch": "^3.1.3", "chokidar": "^5.0.0", "destr": "^2.0.5", "h3": "^1.15.10", "lru-cache": "^11.2.7", "node-fetch-native": "^1.6.7", "ofetch": "^1.5.1", "ufo": "^1.6.3" }, "peerDependencies": { "@azure/app-configuration": "^1.8.0", "@azure/cosmos": "^4.2.0", "@azure/data-tables": "^13.3.0", "@azure/identity": "^4.6.0", "@azure/keyvault-secrets": "^4.9.0", "@azure/storage-blob": "^12.26.0", "@capacitor/preferences": "^6 || ^7 || ^8", "@deno/kv": ">=0.9.0", "@netlify/blobs": "^6.5.0 || ^7.0.0 || ^8.1.0 || ^9.0.0 || ^10.0.0", "@planetscale/database": "^1.19.0", "@upstash/redis": "^1.34.3", "@vercel/blob": ">=0.27.1", "@vercel/functions": "^2.2.12 || ^3.0.0", "@vercel/kv": "^1 || ^2 || ^3", "aws4fetch": "^1.0.20", "db0": ">=0.2.1", "idb-keyval": "^6.2.1", "ioredis": "^5.4.2", "uploadthing": "^7.4.4" }, "optionalPeers": ["@azure/app-configuration", "@azure/cosmos", "@azure/data-tables", "@azure/identity", "@azure/keyvault-secrets", "@azure/storage-blob", "@capacitor/preferences", "@deno/kv", "@netlify/blobs", "@planetscale/database", "@upstash/redis", "@vercel/blob", "@vercel/functions", "@vercel/kv", "aws4fetch", "db0", "idb-keyval", "ioredis", "uploadthing"] }, "sha512-0i3iqvRfx29hkNntHyQvJTpf5W9dQ9ZadSoRU8+xVlhVtT7jAX57fazYO9EHvcRCfBCyi5YRya7XCDOsbTgkPg=="],
 
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@@ -6201,9 +6373,9 @@
 
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+    "shiki/@shikijs/core": ["@shikijs/core@4.2.0", "", { "dependencies": { "@shikijs/primitive": "4.2.0", "@shikijs/types": "4.2.0", "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4", "hast-util-to-html": "^9.0.5" } }, "sha512-Hc87Ab1Ld/vEbZRCbwx344I5v+4RU8CVToUTRkqXL1+TjbuOp9U5Xa0M23V4GEWHxVn+yO5otb+HkQVm3ptWQQ=="],
 
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+    "shiki/@shikijs/types": ["@shikijs/types@4.2.0", "", { "dependencies": { "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-VT/MKtlpOhEPZloSH3Pb9WCZEBDoQVMa9jedp5UAwmJOar1DVc9DRODAxmYPW9M93IK4ryuqRejFfmlvlVDemw=="],
 
     "slice-ansi/ansi-styles": ["ansi-styles@6.2.3", "", {}, "sha512-4Dj6M28JB+oAH8kFkTLUo+a2jwOFkuqb3yucU0CANcRRUbxS0cP0nZYCGjcc3BNXwRIsUVmDGgzawme7zvJHvg=="],
 
@@ -6345,6 +6517,18 @@
 
     "@astrojs/markdown-remark/js-yaml/argparse": ["argparse@2.0.1", "", {}, "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="],
 
+    "@astrojs/markdown-remark/shiki/@shikijs/core": ["@shikijs/core@3.20.0", "", { "dependencies": { "@shikijs/types": "3.20.0", "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4", "hast-util-to-html": "^9.0.5" } }, "sha512-f2ED7HYV4JEk827mtMDwe/yQ25pRiXZmtHjWF8uzZKuKiEsJR7Ce1nuQ+HhV9FzDcbIo4ObBCD9GPTzNuy9S1g=="],
+
+    "@astrojs/markdown-remark/shiki/@shikijs/engine-javascript": ["@shikijs/engine-javascript@3.20.0", "", { "dependencies": { "@shikijs/types": "3.20.0", "@shikijs/vscode-textmate": "^10.0.2", "oniguruma-to-es": "^4.3.4" } }, "sha512-OFx8fHAZuk7I42Z9YAdZ95To6jDePQ9Rnfbw9uSRTSbBhYBp1kEOKv/3jOimcj3VRUKusDYM6DswLauwfhboLg=="],
+
+    "@astrojs/markdown-remark/shiki/@shikijs/engine-oniguruma": ["@shikijs/engine-oniguruma@3.20.0", "", { "dependencies": { "@shikijs/types": "3.20.0", "@shikijs/vscode-textmate": "^10.0.2" } }, "sha512-Yx3gy7xLzM0ZOjqoxciHjA7dAt5tyzJE3L4uQoM83agahy+PlW244XJSrmJRSBvGYELDhYXPacD4R/cauV5bzQ=="],
+
+    "@astrojs/markdown-remark/shiki/@shikijs/langs": ["@shikijs/langs@3.20.0", "", { "dependencies": { "@shikijs/types": "3.20.0" } }, "sha512-le+bssCxcSHrygCWuOrYJHvjus6zhQ2K7q/0mgjiffRbkhM4o1EWu2m+29l0yEsHDbWaWPNnDUTRVVBvBBeKaA=="],
+
+    "@astrojs/markdown-remark/shiki/@shikijs/themes": ["@shikijs/themes@3.20.0", "", { "dependencies": { "@shikijs/types": "3.20.0" } }, "sha512-U1NSU7Sl26Q7ErRvJUouArxfM2euWqq1xaSrbqMu2iqa+tSp0D1Yah8216sDYbdDHw4C8b75UpE65eWorm2erQ=="],
+
+    "@astrojs/markdown-remark/shiki/@shikijs/types": ["@shikijs/types@3.20.0", "", { "dependencies": { "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-lhYAATn10nkZcBQ0BlzSbJA3wcmL5MXUUF8d2Zzon6saZDlToKaiRX60n2+ZaHJCmXEcZRWNzn+k9vplr8Jhsw=="],
+
     "@astrojs/mdx/@astrojs/markdown-remark/@astrojs/internal-helpers": ["@astrojs/internal-helpers@0.7.6", "", {}, "sha512-GOle7smBWKfMSP8osUIGOlB5kaHdQLV3foCsf+5Q9Wsuu+C6Fs3Ez/ttXmhjZ1HkSgsogcM1RXSjjOVieHq16Q=="],
 
     "@astrojs/mdx/@astrojs/markdown-remark/@astrojs/prism": ["@astrojs/prism@3.3.0", "", { "dependencies": { "prismjs": "^1.30.0" } }, "sha512-q8VwfU/fDZNoDOf+r7jUnMC2//H2l0TuQ6FkGJL8vD8nw/q5KiL3DS1KKBI3QhI9UQhpJ5dc7AtqfbXWuOgLCQ=="],
@@ -6641,6 +6825,8 @@
 
     "@sentry/cli/which/isexe": ["isexe@2.0.0", "", {}, "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw=="],
 
+    "@shikijs/stream/@shikijs/core/@shikijs/types": ["@shikijs/types@4.2.0", "", { "dependencies": { "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-VT/MKtlpOhEPZloSH3Pb9WCZEBDoQVMa9jedp5UAwmJOar1DVc9DRODAxmYPW9M93IK4ryuqRejFfmlvlVDemw=="],
+
     "@slack/web-api/form-data/mime-types": ["mime-types@2.1.35", "", { "dependencies": { "mime-db": "1.52.0" } }, "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw=="],
 
     "@slack/web-api/p-queue/eventemitter3": ["eventemitter3@4.0.7", "", {}, "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw=="],
@@ -6659,6 +6845,10 @@
 
     "@solidjs/start/shiki/@shikijs/types": ["@shikijs/types@1.29.2", "", { "dependencies": { "@shikijs/vscode-textmate": "^10.0.1", "@types/hast": "^3.0.4" } }, "sha512-VJjK0eIijTZf0QSTODEXCqinjBn0joAHQ+aPSBzrv4O2d/QSbsMw+ZeSRx03kV34Hy7NzUvV/7NqfYGRLrASmw=="],
 
+    "@standard-community/standard-json/effect/@standard-schema/spec": ["@standard-schema/spec@1.1.0", "", {}, "sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w=="],
+
+    "@standard-community/standard-openapi/effect/@standard-schema/spec": ["@standard-schema/spec@1.1.0", "", {}, "sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w=="],
+
     "@storybook/csf-plugin/unplugin/webpack-virtual-modules": ["webpack-virtual-modules@0.6.2", "", {}, "sha512-66/V2i5hQanC51vBQKPH4aI8NMAcBW59FVBs+rC7eGHupMyfn34q7rZIE+ETlJ+XTevqfUhVVBgSUNSW2flEUQ=="],
 
     "@tailwindcss/oxide-wasm32-wasi/@napi-rs/wasm-runtime/@tybys/wasm-util": ["@tybys/wasm-util@0.10.2", "", { "dependencies": { "tslib": "^2.4.0" } }, "sha512-RoBvJ2X0wuKlWFIjrwffGw1IqZHKQqzIchKaadZZfnNpsAYp2mM0h36JtPCjNDAHGgYez/15uMBpfGwchhiMgg=="],
@@ -6707,6 +6897,18 @@
 
     "astro/js-yaml/argparse": ["argparse@2.0.1", "", {}, "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="],
 
+    "astro/shiki/@shikijs/core": ["@shikijs/core@3.20.0", "", { "dependencies": { "@shikijs/types": "3.20.0", "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4", "hast-util-to-html": "^9.0.5" } }, "sha512-f2ED7HYV4JEk827mtMDwe/yQ25pRiXZmtHjWF8uzZKuKiEsJR7Ce1nuQ+HhV9FzDcbIo4ObBCD9GPTzNuy9S1g=="],
+
+    "astro/shiki/@shikijs/engine-javascript": ["@shikijs/engine-javascript@3.20.0", "", { "dependencies": { "@shikijs/types": "3.20.0", "@shikijs/vscode-textmate": "^10.0.2", "oniguruma-to-es": "^4.3.4" } }, "sha512-OFx8fHAZuk7I42Z9YAdZ95To6jDePQ9Rnfbw9uSRTSbBhYBp1kEOKv/3jOimcj3VRUKusDYM6DswLauwfhboLg=="],
+
+    "astro/shiki/@shikijs/engine-oniguruma": ["@shikijs/engine-oniguruma@3.20.0", "", { "dependencies": { "@shikijs/types": "3.20.0", "@shikijs/vscode-textmate": "^10.0.2" } }, "sha512-Yx3gy7xLzM0ZOjqoxciHjA7dAt5tyzJE3L4uQoM83agahy+PlW244XJSrmJRSBvGYELDhYXPacD4R/cauV5bzQ=="],
+
+    "astro/shiki/@shikijs/langs": ["@shikijs/langs@3.20.0", "", { "dependencies": { "@shikijs/types": "3.20.0" } }, "sha512-le+bssCxcSHrygCWuOrYJHvjus6zhQ2K7q/0mgjiffRbkhM4o1EWu2m+29l0yEsHDbWaWPNnDUTRVVBvBBeKaA=="],
+
+    "astro/shiki/@shikijs/themes": ["@shikijs/themes@3.20.0", "", { "dependencies": { "@shikijs/types": "3.20.0" } }, "sha512-U1NSU7Sl26Q7ErRvJUouArxfM2euWqq1xaSrbqMu2iqa+tSp0D1Yah8216sDYbdDHw4C8b75UpE65eWorm2erQ=="],
+
+    "astro/shiki/@shikijs/types": ["@shikijs/types@3.20.0", "", { "dependencies": { "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-lhYAATn10nkZcBQ0BlzSbJA3wcmL5MXUUF8d2Zzon6saZDlToKaiRX60n2+ZaHJCmXEcZRWNzn+k9vplr8Jhsw=="],
+
     "astro/unstorage/chokidar": ["chokidar@5.0.0", "", { "dependencies": { "readdirp": "^5.0.0" } }, "sha512-TQMmc3w+5AxjpL8iIiwebF73dRDF4fBIieAqGn9RGCWaEVwQ6Fb2cGe31Yns0RRIzii5goJ1Y7xbMwo1TxMplw=="],
 
     "astro/unstorage/h3": ["h3@1.15.11", "", { "dependencies": { "cookie-es": "^1.2.3", "crossws": "^0.3.5", "defu": "^6.1.6", "destr": "^2.0.5", "iron-webcrypto": "^1.2.1", "node-mock-http": "^1.0.4", "radix3": "^1.1.2", "ufo": "^1.6.3", "uncrypto": "^0.1.3" } }, "sha512-L3THSe2MPeBwgIZVSH5zLdBBU90TOxarvhK9d04IDY2AmVS8j2Jz2LIWtwsGOU3lu2I5jCN7FNvVfY2+XyF+mg=="],

bunfig.toml

@@ -2,7 +2,7 @@
 exact = true
 # Only install newly resolved package versions published at least 3 days ago.
 minimumReleaseAge = 259200
-minimumReleaseAgeExcludes = ["@ai-sdk/amazon-bedrock", "@ai-sdk/anthropic", "@opentui/core", "@opentui/core-darwin-arm64", "@opentui/core-darwin-x64", "@opentui/core-linux-arm64", "@opentui/core-linux-arm64-musl", "@opentui/core-linux-x64", "@opentui/core-linux-x64-musl", "@opentui/core-win32-arm64", "@opentui/core-win32-x64", "@opentui/keymap", "@opentui/solid", "opentui-spinner", "gitlab-ai-provider", "opencode-gitlab-auth", "@ff-labs/fff-node", "@ff-labs/fff-bun", "@ff-labs/fff-bin-darwin-arm64", "@ff-labs/fff-bin-darwin-x64", "@ff-labs/fff-bin-linux-arm64-gnu", "@ff-labs/fff-bin-linux-arm64-musl", "@ff-labs/fff-bin-linux-x64-gnu", "@ff-labs/fff-bin-linux-x64-musl", "@ff-labs/fff-bin-win32-arm64", "@ff-labs/fff-bin-win32-x64", "app-builder-lib", "dmg-builder", "electron-builder", "electron-publish"]
+minimumReleaseAgeExcludes = ["@ai-sdk/amazon-bedrock", "@ai-sdk/anthropic", "@opentui/core", "@opentui/core-darwin-arm64", "@opentui/core-darwin-x64", "@opentui/core-linux-arm64", "@opentui/core-linux-arm64-musl", "@opentui/core-linux-x64", "@opentui/core-linux-x64-musl", "@opentui/core-win32-arm64", "@opentui/core-win32-x64", "@opentui/keymap", "@opentui/solid", "opentui-spinner", "gitlab-ai-provider", "opencode-gitlab-auth", "@ff-labs/fff-node", "@ff-labs/fff-bun", "@ff-labs/fff-bin-darwin-arm64", "@ff-labs/fff-bin-darwin-x64", "@ff-labs/fff-bin-linux-arm64-gnu", "@ff-labs/fff-bin-linux-arm64-musl", "@ff-labs/fff-bin-linux-x64-gnu", "@ff-labs/fff-bin-linux-x64-musl", "@ff-labs/fff-bin-win32-arm64", "@ff-labs/fff-bin-win32-x64", "@pierre/diffs", "@pierre/theming", "app-builder-lib", "dmg-builder", "electron-builder", "electron-publish"]
 
 [test]
 root = "./do-not-run-tests-from-root"

infra/console.ts

@@ -256,6 +256,7 @@ new sst.cloudflare.x.SolidStart("Console", {
     SECRET.UpstashRedisRestToken,
     AUTH_API_URL,
     STRIPE_WEBHOOK_SECRET,
+    SECRET.SupportApiKey,
     DISCORD_INCIDENT_WEBHOOK_URL,
     SECRET.HoneycombWebhookSecret,
     STRIPE_SECRET_KEY,

infra/enterprise.ts

@@ -7,6 +7,7 @@ new sst.cloudflare.x.SolidStart("Teams", {
   domain: shortDomain,
   path: "packages/enterprise",
   buildCommand: "bun run build:cloudflare",
+  link: [SECRET.SupportApiKey],
   environment: {
     OPENCODE_STORAGE_ADAPTER: "r2",
     OPENCODE_STORAGE_ACCOUNT_ID: sst.cloudflare.DEFAULT_ACCOUNT_ID,

infra/secret.ts

@@ -9,6 +9,7 @@ export const SECRET = {
   R2SecretKey: new sst.Secret("R2SecretKey", "unknown"),
   HoneycombApiKey: new sst.Secret("HONEYCOMB_API_KEY"),
   HoneycombWebhookSecret: new random.RandomPassword("HoneycombWebhookSecret", { length: 24 }),
+  SupportApiKey: new sst.Secret("SUPPORT_API_KEY"),
   UpstashRedisRestUrl: new sst.Secret("UpstashRedisRestUrl"),
   UpstashRedisRestToken: new sst.Secret("UpstashRedisRestToken"),
 }

infra/stats.ts

@@ -42,11 +42,12 @@ const inferenceEventTable = new aws.s3tables.Table(
             { name: "request", type: "string", required: false },
             { name: "client", type: "string", required: false },
             { name: "user_agent", type: "string", required: false },
+            { name: "model", type: "string", required: false },
+            { name: "model_tier", type: "string", required: false },
             { name: "model_variant", type: "string", required: false },
             { name: "source", type: "string", required: false },
             { name: "provider", type: "string", required: false },
             { name: "provider_model", type: "string", required: false },
-            { name: "model", type: "string", required: false },
             { name: "llm_error_code", type: "int", required: false },
             { name: "llm_error_message", type: "string", required: false },
             { name: "error_response", type: "string", required: false },
@@ -56,6 +57,7 @@ const inferenceEventTable = new aws.s3tables.Table(
             { name: "error_cause2", type: "string", required: false },
             { name: "api_key", type: "string", required: false },
             { name: "workspace", type: "string", required: false },
+            { name: "user_id", type: "string", required: false },
             { name: "is_subscription", type: "boolean", required: false },
             { name: "subscription", type: "string", required: false },
             { name: "response_length", type: "long", required: false },
@@ -84,7 +86,7 @@ const inferenceEventTable = new aws.s3tables.Table(
       },
     },
   },
-  { deleteBeforeReplace: $app.stage !== "production" },
+  { deleteBeforeReplace: $app.stage !== "production", ignoreChanges: ["metadata"] },
 )
 
 export const inferenceEvent = new sst.Linkable("InferenceEvent", {

nix/hashes.json

@@ -1,8 +1,8 @@
 {
   "nodeModules": {
-    "x86_64-linux": "sha256-u3CBUflGrE1unVRTvvLKaDkvx5ZHXyRLd/SJOUUsRdc=",
+    "x86_64-linux": "sha256-drc/Ev96W6b8b0b5LqdZeeGDQ1SMgsz8r5cMO91ei2o=",
-    "aarch64-linux": "sha256-hUu70IlOXXQ9apQe3IPOdQGf3ZSVCpvRuAWSKxipk/k=",
+    "aarch64-linux": "sha256-Ti0hNjhUgkVtdb54vea/lpI0ltDwLoPitVyHtx4JGwY=",
-    "aarch64-darwin": "sha256-N6Mqmo94q0rsskLcXoUGWCMJjQ9wCuuo0Lby3j6+Dps=",
+    "aarch64-darwin": "sha256-br4iQ/kK3tSGp+1FefiCTlwsCRhHHhGbKzSixGWaCto=",
-    "x86_64-darwin": "sha256-5691VKK2zWqAwe94CCjZuRjXEaswedevFtHxensVLfg="
+    "x86_64-darwin": "sha256-h7yje968Kyh8/mVY19YmDB5g693XDhIf0XnuwukzCWE="
   }
 }

nix/opencode.nix

@@ -27,6 +27,13 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     writableTmpDirAsHomeHook
   ];
 
+  postPatch = ''
+    # NOTE: Relax Bun version check to be a warning instead of an error
+    substituteInPlace packages/script/src/index.ts \
+      --replace-fail 'throw new Error(`This script requires bun@''${expectedBunVersionRange}' \
+                     'console.warn(`Warning: This script requires bun@''${expectedBunVersionRange}'
+  '';
+
   configurePhase = ''
     runHook preConfigure
 

package.json

@@ -30,9 +30,9 @@
       "packages/slack"
     ],
     "catalog": {
-      "@effect/opentelemetry": "4.0.0-beta.74",
+      "@effect/opentelemetry": "4.0.0-beta.83",
-      "@effect/platform-node": "4.0.0-beta.74",
+      "@effect/platform-node": "4.0.0-beta.83",
-      "@effect/sql-sqlite-bun": "4.0.0-beta.74",
+      "@effect/sql-sqlite-bun": "4.0.0-beta.83",
       "@npmcli/arborist": "9.4.0",
       "@types/bun": "1.3.13",
       "@types/cross-spawn": "6.0.6",
@@ -42,6 +42,8 @@
       "@opentui/core": "0.3.4",
       "@opentui/keymap": "0.3.4",
       "@opentui/solid": "0.3.4",
+      "@tanstack/solid-virtual": "3.13.28",
+      "@shikijs/stream": "4.2.0",
       "ulid": "3.0.1",
       "@kobalte/core": "0.13.11",
       "@types/luxon": "3.7.1",
@@ -51,7 +53,7 @@
       "@tsconfig/bun": "1.0.9",
       "@cloudflare/workers-types": "4.20251008.0",
       "@openauthjs/openauth": "0.0.0-20250322224806",
-      "@pierre/diffs": "1.1.0-beta.18",
+      "@pierre/diffs": "1.2.10",
       "opentui-spinner": "0.0.7",
       "@solid-primitives/storage": "4.3.3",
       "@tailwindcss/vite": "4.1.11",
@@ -59,7 +61,7 @@
       "dompurify": "3.3.1",
       "drizzle-kit": "1.0.0-rc.2",
       "drizzle-orm": "1.0.0-rc.2",
-      "effect": "4.0.0-beta.74",
+      "effect": "4.0.0-beta.83",
       "ai": "6.0.168",
       "cross-spawn": "7.0.6",
       "hono": "4.10.7",
@@ -76,10 +78,9 @@
       "zod": "4.1.8",
       "remeda": "2.26.0",
       "sst": "4.13.1",
-      "shiki": "3.20.0",
+      "shiki": "4.2.0",
       "solid-list": "0.3.0",
       "tailwindcss": "4.1.11",
-      "virtua": "0.49.1",
       "vite": "7.1.4",
       "@solidjs/meta": "0.29.4",
       "@solidjs/router": "0.15.4",
@@ -145,10 +146,13 @@
     "@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",
     "solid-js@1.9.10": "patches/solid-js@1.9.10.patch",
-    "virtua@0.49.1": "patches/virtua@0.49.1.patch",
     "@ai-sdk/xai@3.0.82": "patches/@ai-sdk%2Fxai@3.0.82.patch",
     "gcp-metadata@8.1.2": "patches/gcp-metadata@8.1.2.patch",
     "pacote@21.5.0": "patches/pacote@21.5.0.patch",
-    "@ai-sdk/google@3.0.73": "patches/@ai-sdk%2Fgoogle@3.0.73.patch"
+    "@ai-sdk/google@3.0.73": "patches/@ai-sdk%2Fgoogle@3.0.73.patch",
+    "@tanstack/solid-virtual@3.13.28": "patches/@tanstack%2Fsolid-virtual@3.13.28.patch",
+    "@pierre/trees@1.0.0-beta.4": "patches/@pierre%2Ftrees@1.0.0-beta.4.patch",
+    "@modelcontextprotocol/sdk@1.29.0": "patches/@modelcontextprotocol%2Fsdk@1.29.0.patch",
+    "@tanstack/virtual-core@3.17.0": "patches/@tanstack%2Fvirtual-core@3.17.0.patch"
   }
 }

packages/app/AGENTS.md

@@ -1,3 +1,8 @@
+## Priorities
+
+- Prioritise, in this order: stability, simplicity, performance.
+- Before changing session or timeline code, record a production benchmark baseline and compare it after the change.
+
 ## Debugging
 
 - NEVER try to restart the app, or the server process, EVER.

packages/app/e2e/performance/AGENTS.md

@@ -0,0 +1,13 @@
+- Prioritize stability, then simplicity, then measurement overhead.
+- Use Playwright for scenario control, isolation, and completion checks.
+- Use Chrome Performance traces for generic browser profiling.
+- Use Electron `contentTracing` for packaged multi-process profiling.
+- Keep custom probes only for product-specific measurements.
+- Do not duplicate measurements across the harness, probes, and traces.
+- Run benchmarks serially to avoid cross-test contention.
+- Run benchmarks against production builds.
+- Keep detailed profiling opt-in when it changes workload behavior.
+- Preserve raw diagnostic data or use lossless representations.
+- Do not enforce machine-dependent performance thresholds.
+- Assert scenario completion and metric collection only.
+- Keep normal test discovery free of manual benchmarks.

packages/app/e2e/performance/README.md

@@ -0,0 +1,79 @@
+# Manual app performance suite
+
+The app's high-volume performance diagnostics live under `packages/app/e2e/performance` and are excluded from normal local and CI Playwright discovery. The benchmark config builds the app and serves the production bundle before running scenarios serially.
+
+Run the suite explicitly from `packages/app`:
+
+```sh
+bun run test:bench
+```
+
+PowerShell:
+
+```powershell
+$env:PLAYWRIGHT_WORKERS = "1"
+bun run test:bench
+```
+
+The suite contains:
+
+- cold and hot session-tab timing
+- home-session click timing split between content and titlebar-tab paint
+- single-session tab close timing through stable home restoration
+- cached session repaint and mutation tracing
+- streaming timeline throughput, RAF-gap, long-task, geometry, and remount diagnostics
+
+All benchmarks import the shared `benchmark` fixture. Pages created through Playwright's `page` fixture automatically capture main-frame navigation history and emit a Chrome trace when `OPENCODE_PERFORMANCE_TRACE_DIR` is set. Benchmarks that need isolated browser contexts use `withBenchmarkPage`, which owns the context and the same diagnostics lifecycle.
+
+New benchmarks should look like normal Playwright tests:
+
+```ts
+import { benchmark, expect } from "../benchmark"
+
+benchmark("measures one interaction", async ({ page, report }) => {
+  // Only scenario-specific setup and interaction belong here.
+  report({ durationMs: 42 })
+})
+```
+
+The fixture requires every benchmark to call `report()`, automatically names and closes traces, captures navigation history, attaches that history when a test fails, and emits metrics as a consistent `BENCHMARK` JSON line.
+
+```text
+BENCHMARK {"name":"...","context":{"project":"chromium","platform":"darwin"},"metrics":{...}}
+```
+
+Every observed page also emits `BENCHMARK_PAGE` with the same run ID, navigation history, and optional trace path before the final status-bearing `BENCHMARK` record. Chrome traces are browser-wide page-lifetime diagnostics; scenario metrics use narrower explicitly named observation windows.
+
+This follows the stack's own guidance: [Electron recommends repeated Chrome DevTools and Chrome Tracing measurement](https://www.electronjs.org/docs/latest/tutorial/performance), [Chrome DevTools recommends Performance recordings for runtime work](https://developer.chrome.com/docs/devtools/performance), and [Playwright uses traces for test debugging rather than renderer profiling](https://playwright.dev/docs/trace-viewer).
+
+These Playwright benchmarks profile the shared app renderer in Chromium. A future packaged Electron benchmark that needs main-process and multi-process attribution should use Electron's official [`contentTracing`](https://www.electronjs.org/docs/latest/api/content-tracing/) API rather than extending this renderer harness with bespoke process instrumentation.
+
+CPU and high-volume visual profiling are disabled by default. Set `TIMELINE_CPU_PROFILE=1` to enable both, or additionally set `TIMELINE_VISUAL_PROFILE=0` for CPU-only profiling.
+
+The streaming scenario's 30x CPU throttle is a deterministic stress profile, not a simulated end-user device.
+
+Benchmarks do not assert machine-dependent performance budgets. Streaming processes 160 deltas by default and reports renderer-observed completion time, throughput, RAF callback-gap distributions, frame-budget equivalents, and long tasks through final geometry settlement. Delta count and delivery batch are included in result context when overridden. These are main-thread callback diagnostics, not compositor presentation or dropped-frame measurements. Visual-only and geometry metrics are `null` when their probes are disabled. Tab metrics describe sampled DOM observations. Assertions verify scenario and metric collection completion. Repeated repaint states are run-length grouped, but every original observation timestamp is retained alongside raw mutation batches and layout shifts.
+
+Committed smoke and regression tests continue to own correctness coverage for pagination, tab paint, context resize, collapse state, and composer spacing.
+
+## Chrome traces
+
+Set `OPENCODE_PERFORMANCE_TRACE_DIR` to emit a standard Chrome DevTools trace for every benchmark page automatically:
+
+```sh
+OPENCODE_PERFORMANCE_TRACE_DIR=/tmp/opencode-performance-traces \
+bunx playwright test --config e2e/performance/playwright.config.ts \
+  timeline/session-tab-switch-benchmark.spec.ts
+```
+
+The emitted JSON is a standard Chrome trace and can be loaded directly into the Chrome DevTools Performance panel. `devtools-tracing` can optionally inspect it from the command line without adding package scripts or dependencies:
+
+Trace capture mirrors [Puppeteer's official tracing defaults and lifecycle](https://pptr.dev/api/puppeteer.tracing), using Chrome's `ReturnAsStream` transfer mode and failing when Chromium reports trace data loss.
+
+```sh
+bunx devtools-tracing stats <trace-path-from-BENCHMARK_PAGE>
+```
+
+INP analysis requires a trace with a supported navigation/interaction insight. Selector statistics require a trace captured with `OPENCODE_PERFORMANCE_SELECTOR_TRACE=1`.
+
+`e2e/performance/playwright.uncapped.config.ts` disables Chromium frame-rate limiting for explicit uncapped diagnostics. Native product benchmarks should use the default Playwright configuration.

packages/app/e2e/performance/benchmark.ts

@@ -0,0 +1,144 @@
+import { expect, test as base, type Browser, type Page, type TestInfo } from "@playwright/test"
+import { startChromeTrace } from "./chrome-trace"
+
+type BenchmarkFixtures = {
+  report: (metrics: Record<string, unknown>, context?: Record<string, unknown>) => void
+  reportState: { payload?: { metrics: Record<string, unknown>; context: Record<string, unknown> } }
+  benchmarkResult: void
+}
+
+export type PerformancePageDiagnostics = {
+  navigations: string[]
+  stop: () => Promise<string | undefined>
+}
+
+const pages = new WeakMap<Page, PerformancePageDiagnostics>()
+
+export const benchmark = base.extend<BenchmarkFixtures>({
+  reportState: async ({}, use) => use({}),
+  report: async ({ reportState }, use) => {
+    await use((metrics, context = {}) => {
+      if (reportState.payload) throw new Error("Benchmark reported metrics more than once")
+      reportState.payload = { metrics, context }
+    })
+  },
+  benchmarkResult: [
+    async ({ reportState }, use, testInfo) => {
+      await use()
+      const missing = !reportState.payload
+      console.log(
+        `BENCHMARK ${JSON.stringify({
+          schemaVersion: 2,
+          runID: process.env.OPENCODE_PERFORMANCE_RUN_ID,
+          name: benchmarkName(testInfo),
+          status: missing ? "failed" : testInfo.status,
+          expectedStatus: testInfo.expectedStatus,
+          retry: testInfo.retry,
+          repeatEachIndex: testInfo.repeatEachIndex,
+          context: {
+            project: testInfo.project.name,
+            platform: process.platform,
+            ...reportState.payload?.context,
+          },
+          metrics: reportState.payload?.metrics ?? null,
+          error: missing ? "Benchmark did not report metrics" : undefined,
+        })}`,
+      )
+      if (missing && testInfo.status === testInfo.expectedStatus)
+        throw new Error(`Benchmark did not report metrics: ${benchmarkName(testInfo)}`)
+    },
+    { auto: true },
+  ],
+  page: async ({ page }, use, testInfo) => {
+    const name = benchmarkName(testInfo)
+    const diagnostics = await observePerformancePage(page, name)
+    try {
+      await use(page)
+    } finally {
+      try {
+        await reportPerformancePage(name, diagnostics, testInfo)
+      } finally {
+        if (testInfo.status !== testInfo.expectedStatus) {
+          await testInfo.attach("performance-navigations", {
+            body: JSON.stringify(diagnostics.navigations, null, 2),
+            contentType: "application/json",
+          })
+        }
+      }
+    }
+  },
+})
+
+function benchmarkName(testInfo: TestInfo) {
+  return testInfo.titlePath.slice(1).join(" > ")
+}
+
+export { expect }
+
+async function observePerformancePage(page: Page, name: string) {
+  const navigations: string[] = []
+  const onNavigation = (frame: ReturnType<Page["mainFrame"]>) => {
+    if (frame === page.mainFrame()) navigations.push(frame.url())
+  }
+  page.on("framenavigated", onNavigation)
+  const stopTrace = await startChromeTrace(page, name).catch((error) => {
+    page.off("framenavigated", onNavigation)
+    throw error
+  })
+  let stopping: Promise<string | undefined> | undefined
+  const diagnostics: PerformancePageDiagnostics = {
+    navigations,
+    stop() {
+      page.off("framenavigated", onNavigation)
+      return (stopping ??= stopTrace?.() ?? Promise.resolve(undefined))
+    },
+  }
+  pages.set(page, diagnostics)
+  return diagnostics
+}
+
+export async function withBenchmarkPage<T>(
+  browser: Browser,
+  name: string,
+  run: (page: Page) => Promise<T>,
+  testInfo?: TestInfo,
+) {
+  const context = await browser.newContext()
+  try {
+    const page = await context.newPage()
+    const diagnostics = await observePerformancePage(page, name)
+    try {
+      return await run(page)
+    } finally {
+      await reportPerformancePage(name, diagnostics, testInfo)
+    }
+  } finally {
+    await context.close()
+  }
+}
+
+async function reportPerformancePage(name: string, diagnostics: PerformancePageDiagnostics, testInfo?: TestInfo) {
+  const trace = await diagnostics.stop()
+  console.log(
+    `BENCHMARK_PAGE ${JSON.stringify({
+      schemaVersion: 2,
+      runID: process.env.OPENCODE_PERFORMANCE_RUN_ID,
+      name,
+      test: testInfo ? benchmarkName(testInfo) : undefined,
+      retry: testInfo?.retry,
+      repeatEachIndex: testInfo?.repeatEachIndex,
+      context: {
+        platform: process.platform,
+        trace,
+        selectorTrace: process.env.OPENCODE_PERFORMANCE_SELECTOR_TRACE === "1",
+      },
+      navigations: diagnostics.navigations,
+    })}`,
+  )
+}
+
+export function benchmarkDiagnostics(page: Page) {
+  const diagnostics = pages.get(page)
+  if (!diagnostics) throw new Error("Performance diagnostics are not installed for this page")
+  return diagnostics
+}

packages/app/e2e/performance/chrome-trace.ts

@@ -0,0 +1,95 @@
+import type { CDPSession, Page } from "@playwright/test"
+import path from "node:path"
+import { mkdir, open, rename } from "node:fs/promises"
+import { Buffer } from "node:buffer"
+import { createHash, randomUUID } from "node:crypto"
+
+const categories = [
+  "-*",
+  "devtools.timeline",
+  "v8.execute",
+  "disabled-by-default-devtools.timeline",
+  "disabled-by-default-devtools.timeline.frame",
+  "toplevel",
+  "blink.console",
+  "blink.user_timing",
+  "latencyInfo",
+  "disabled-by-default-devtools.timeline.stack",
+  "disabled-by-default-v8.cpu_profiler",
+]
+
+export async function startChromeTrace(page: Page, name: string) {
+  const directory = process.env.OPENCODE_PERFORMANCE_TRACE_DIR
+  if (!directory) return
+
+  const selectors = process.env.OPENCODE_PERFORMANCE_SELECTOR_TRACE === "1"
+  const file = await prepareChromeTrace(directory, name, selectors)
+  const session = await page.context().newCDPSession(page)
+  try {
+    await session.send("Tracing.start", {
+      transferMode: "ReturnAsStream",
+      traceConfig: {
+        excludedCategories: categories
+          .filter((category) => category.startsWith("-"))
+          .map((category) => category.slice(1)),
+        includedCategories: [
+          ...categories.filter((category) => !category.startsWith("-")),
+          ...(selectors
+            ? ["disabled-by-default-blink.debug", "disabled-by-default-devtools.timeline.invalidationTracking"]
+            : []),
+        ],
+      },
+    })
+  } catch (error) {
+    await Promise.allSettled([session.detach()])
+    throw error
+  }
+  let stopping: Promise<string> | undefined
+
+  return () =>
+    (stopping ??= (async () => {
+      try {
+        const complete = new Promise<{ stream?: string; dataLossOccurred: boolean }>((resolve) =>
+          session.once("Tracing.tracingComplete", resolve),
+        )
+        await session.send("Tracing.end")
+        const result = await complete
+        if (!result.stream) throw new Error(`Chrome trace stream missing: ${file}`)
+        const partial = `${file}.partial`
+        await writeProtocolStream(session, result.stream, partial)
+        if (result.dataLossOccurred) throw new Error(`Chrome trace lost data; partial capture retained: ${partial}`)
+        await rename(partial, file)
+        return file
+      } finally {
+        await Promise.allSettled([session.detach()])
+      }
+    })())
+}
+
+export async function prepareChromeTrace(
+  directory: string,
+  name: string,
+  selectors: boolean,
+  nonce = randomUUID().slice(0, 8),
+) {
+  await mkdir(directory, { recursive: true })
+  const run = process.env.OPENCODE_PERFORMANCE_RUN_ID ?? "manual"
+  const hash = createHash("sha256").update(name).digest("hex").slice(0, 8)
+  return path.join(
+    directory,
+    `${run}-${name.replace(/[^a-zA-Z0-9_-]/g, "-")}-${hash}-${nonce}${selectors ? "-selectors" : ""}.json`,
+  )
+}
+
+async function writeProtocolStream(session: CDPSession, handle: string, file: string) {
+  const output = await open(file, "wx")
+  try {
+    while (true) {
+      const chunk = await session.send("IO.read", { handle })
+      await output.write(chunk.base64Encoded ? Buffer.from(chunk.data, "base64") : chunk.data)
+      if (chunk.eof) break
+    }
+  } finally {
+    await Promise.allSettled([output.close(), session.send("IO.close", { handle })])
+  }
+}

packages/app/e2e/performance/playwright.config.ts

@@ -0,0 +1,20 @@
+import config from "../../playwright.config"
+
+const port = Number(process.env.PLAYWRIGHT_PORT ?? 3000)
+process.env.PLAYWRIGHT_SERVER_PORT = String(port)
+process.env.OPENCODE_PERFORMANCE_RUN_ID ??= `${new Date().toISOString().replace(/[:.]/g, "-")}-${process.pid}`
+
+export default {
+  ...config,
+  testDir: ".",
+  testIgnore: "unit/**",
+  outputDir: "../test-results/performance",
+  fullyParallel: false,
+  workers: 1,
+  reporter: [["html", { outputFolder: "../playwright-report/performance", open: "never" }], ["line"]],
+  webServer: {
+    ...config.webServer,
+    command: `bun run build && bun run serve -- --host 0.0.0.0 --port ${port} --strictPort`,
+    reuseExistingServer: false,
+  },
+}

packages/app/e2e/performance/playwright.uncapped.config.ts

@@ -0,0 +1,13 @@
+import config from "./playwright.config"
+
+export default {
+  ...config,
+  outputDir: "../test-results/performance-uncapped",
+  reporter: [["html", { outputFolder: "../playwright-report/performance-uncapped", open: "never" }], ["line"]],
+  use: {
+    ...config.use,
+    launchOptions: {
+      args: ["--disable-frame-rate-limit", "--disable-gpu-vsync"],
+    },
+  },
+}

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

@@ -0,0 +1,87 @@
+import { expectSessionTitle } from "../../utils/waits"
+import { benchmark, expect } from "../benchmark"
+import { measureFirstNavigation } from "./first-navigation-probe"
+import { fixture } from "./session-timeline-stress.fixture"
+import {
+  installStressSessionTabs,
+  installTimelineSettings,
+  mockStressTimeline,
+  stressDraftHref,
+  stressSessionHref,
+} from "./timeline-test-helpers"
+import { waitForStableTimeline } from "./session-tab-switch-probe"
+
+const contentSelector = '[data-message-id], [data-component="prompt-input"]'
+const draftID = "draft_first_navigation"
+
+benchmark.describe("performance: first navigation paint", () => {
+  benchmark("opens an unvisited session tab without a blank frame", async ({ page, report }) => {
+    await setup(page)
+    const href = stressSessionHref(fixture.targetID)
+    const result = await measureFirstNavigation(page, {
+      href,
+      destinationPath: href,
+      sourceSelector: messageSelector(fixture.expected.sourceMessageIDs.at(-1)!),
+      destinationSelector: messageSelector(fixture.expected.targetMessageIDs.at(-1)!),
+      contentSelector,
+      navigate: async () => {
+        await page.locator(`[data-slot="titlebar-tabs"] a[href="${href}"]`).first().click()
+        await expectSessionTitle(page, fixture.expected.targetTitle)
+      },
+    })
+    report(result)
+    expect(result.summary.blankSamples).toBe(0)
+    expect(result.summary.unknownSamples).toBe(0)
+  })
+
+  benchmark("opens the new session page before its lazy module is used", async ({ page, report }) => {
+    await setup(page, draftID)
+    const href = stressDraftHref(draftID)
+    const result = await measureFirstNavigation(page, {
+      href,
+      destinationPath: href,
+      sourceSelector: messageSelector(fixture.expected.sourceMessageIDs.at(-1)!),
+      destinationSelector: '[data-component="prompt-input"]',
+      contentSelector,
+      navigate: async () => {
+        await page.locator(`[data-slot="titlebar-tabs"] a[href="${href}"]`).first().click()
+        await expect(page.locator('[data-component="prompt-input"]')).toBeVisible()
+      },
+    })
+    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)
+    const result = await measureFirstNavigation(page, {
+      href,
+      destinationPath: href,
+      sourceSelector: messageSelector(fixture.expected.sourceMessageIDs.at(-1)!),
+      destinationSelector: messageSelector(fixture.expected.childMessageIDs.at(-1)!),
+      contentSelector,
+      navigate: async () => {
+        await page.locator(`a[href="${href}"]`, { has: page.locator('[data-component="task-tool-card"]') }).click()
+        await expectSessionTitle(page, fixture.expected.childTitle)
+      },
+    })
+    report(result)
+    expect(result.summary.blankSamples).toBe(0)
+    expect(result.summary.unknownSamples).toBe(0)
+  })
+})
+
+async function setup(page: Parameters<typeof mockStressTimeline>[0], draft?: string) {
+  await mockStressTimeline(page)
+  await installTimelineSettings(page)
+  await installStressSessionTabs(page, draft ? { draftID: draft } : undefined)
+  await page.goto(stressSessionHref(fixture.sourceID))
+  await expectSessionTitle(page, fixture.expected.sourceTitle)
+  await waitForStableTimeline(page, fixture.expected.sourceMessageIDs.at(-1)!)
+}
+
+function messageSelector(id: string) {
+  return `[data-message-id="${id}"]`
+}

packages/app/e2e/performance/timeline/first-navigation-metrics.ts

@@ -0,0 +1,32 @@
+export type FirstNavigationSample = {
+  observedAtMs: number
+  source: boolean
+  destination: boolean
+  content: boolean
+  pathname?: string
+  center?: string
+}
+
+function category(sample: FirstNavigationSample) {
+  if (sample.destination && !sample.source) return "destination"
+  if (sample.source && !sample.destination) return "source"
+  if (!sample.content) return "blank"
+  return "unknown"
+}
+
+export function summarizeFirstNavigation(samples: FirstNavigationSample[]) {
+  const categories = samples.map(category)
+  const stable = categories.findIndex(
+    (value, index) =>
+      value === "destination" && categories[index + 1] === "destination" && categories[index + 2] === "destination",
+  )
+  return {
+    samples: samples.length,
+    firstDestinationObservedMs: samples[categories.indexOf("destination")]?.observedAtMs ?? null,
+    stableDestinationObservedMs: stable === -1 ? null : samples[stable + 2]!.observedAtMs,
+    sourceSamples: categories.filter((value) => value === "source").length,
+    blankSamples: categories.filter((value) => value === "blank").length,
+    unknownSamples: categories.filter((value) => value === "unknown").length,
+    destinationSamples: categories.filter((value) => value === "destination").length,
+  }
+}

packages/app/e2e/performance/timeline/first-navigation-probe.ts

@@ -0,0 +1,86 @@
+import type { Page } from "@playwright/test"
+import { summarizeFirstNavigation, type FirstNavigationSample } from "./first-navigation-metrics"
+
+type FirstNavigationProbe = {
+  samples: FirstNavigationSample[]
+  stop: () => void
+}
+
+export async function measureFirstNavigation(
+  page: Page,
+  input: {
+    href: string
+    destinationPath: string
+    sourceSelector: string
+    destinationSelector: string
+    contentSelector: string
+    navigate: () => Promise<void>
+  },
+) {
+  await page.evaluate(
+    ({ href, destinationPath, sourceSelector, destinationSelector, contentSelector }) => {
+      const samples: FirstNavigationSample[] = []
+      let started: number | undefined
+      let running = true
+      const visible = (selector: string) =>
+        [...document.querySelectorAll<HTMLElement>(selector)].some((element) => {
+          const rect = element.getBoundingClientRect()
+          const style = getComputedStyle(element)
+          return rect.width > 0 && rect.height > 0 && style.visibility !== "hidden" && style.display !== "none"
+        })
+      const sample = () => {
+        if (!running || started === undefined) return
+        requestAnimationFrame(() => {
+          setTimeout(() => {
+            if (!running || started === undefined) return
+            samples.push({
+              observedAtMs: performance.now() - started,
+              source: visible(sourceSelector),
+              destination: `${location.pathname}${location.search}` === destinationPath && visible(destinationSelector),
+              content: visible(contentSelector),
+              pathname: `${location.pathname}${location.search}`,
+              center: document.elementFromPoint(innerWidth / 2, innerHeight / 2)?.textContent?.slice(0, 80),
+            })
+            sample()
+          }, 0)
+        })
+      }
+      document.addEventListener(
+        "click",
+        (event) => {
+          const link = event.target instanceof Element ? event.target.closest("a") : undefined
+          if (link?.getAttribute("href") !== href) return
+          started = performance.now()
+          sample()
+        },
+        { capture: true, once: true },
+      )
+      ;(window as Window & { __firstNavigationProbe?: FirstNavigationProbe }).__firstNavigationProbe = {
+        samples,
+        stop: () => {
+          running = false
+        },
+      }
+    },
+    {
+      href: input.href,
+      destinationPath: input.destinationPath,
+      sourceSelector: input.sourceSelector,
+      destinationSelector: input.destinationSelector,
+      contentSelector: input.contentSelector,
+    },
+  )
+  await input.navigate()
+  await page.waitForFunction(() => {
+    const samples = (window as Window & { __firstNavigationProbe?: FirstNavigationProbe }).__firstNavigationProbe
+      ?.samples
+    if (!samples) return false
+    return samples.length >= 3 && samples.slice(-3).every((sample) => sample.destination && !sample.source)
+  })
+  const samples = await page.evaluate(() => {
+    const probe = (window as Window & { __firstNavigationProbe?: FirstNavigationProbe }).__firstNavigationProbe!
+    probe.stop()
+    return probe.samples
+  })
+  return { summary: summarizeFirstNavigation(samples), samples }
+}

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

@@ -0,0 +1,114 @@
+import { benchmark, expect } from "../benchmark"
+import { expectSessionTitle } from "../../utils/waits"
+import { measureNavigationMilestones } from "./navigation-milestones"
+import { fixture } from "./session-timeline-stress.fixture"
+import {
+  installStressSessionTabs,
+  installTimelineSettings,
+  mockStressTimeline,
+  stressSessionHref,
+} from "./timeline-test-helpers"
+import { waitForStableTimeline } from "./session-tab-switch-probe"
+
+const homeRow = '[data-component="home-session-row"]'
+const homeShell = '[data-component="home-session-search"]'
+
+benchmark.describe("performance: home and tab navigation", () => {
+  benchmark("opens a home session and paints its titlebar tab", async ({ page, report }) => {
+    await setup(page, [])
+    await page.goto("/")
+    const row = page.locator(homeRow).filter({ hasText: fixture.expected.targetTitle }).first()
+    await expect(row).toBeVisible()
+    const href = stressSessionHref(fixture.targetID)
+    const result = await measureNavigationMilestones(page, {
+      triggerSelector: homeRow,
+      milestones: {
+        content: { selector: messageSelector(fixture.expected.targetMessageIDs.at(-1)!) },
+        tab: { selector: `[data-slot="titlebar-tabs"] a[href="${href}"]` },
+      },
+      navigate: async () => {
+        await row.click()
+        await expectSessionTitle(page, fixture.expected.targetTitle)
+      },
+    })
+    report(result)
+    await expect(page.locator(`[data-slot="titlebar-tabs"] a[href="${href}"]`)).toContainText(
+      fixture.expected.targetTitle,
+    )
+  })
+
+  benchmark("stages the review body after cold session content", async ({ page, report }) => {
+    await setup(page, [])
+    await page.goto("/")
+    const row = page.locator(homeRow).filter({ hasText: fixture.expected.targetTitle }).first()
+    await expect(row).toBeVisible()
+    const result = await page.evaluate(
+      ({ rowSelector, title, contentSelector }) =>
+        new Promise<{ contentBeforeReview: boolean; samples: number }>((resolve) => {
+          let samples = 0
+          const sample = () => {
+            samples++
+            const content = !!document.querySelector(contentSelector)
+            const review = !!document.querySelector('[data-component="session-review"]')
+            if (content && !review) {
+              resolve({ contentBeforeReview: true, samples })
+              return
+            }
+            if (content && review) {
+              resolve({ contentBeforeReview: false, samples })
+              return
+            }
+            requestAnimationFrame(sample)
+          }
+          const target = [...document.querySelectorAll<HTMLElement>(rowSelector)].find((item) =>
+            item.textContent?.includes(title),
+          )
+          if (!target) throw new Error(`Home session row not found: ${title}`)
+          target.click()
+          requestAnimationFrame(sample)
+        }),
+      {
+        rowSelector: homeRow,
+        title: fixture.expected.targetTitle,
+        contentSelector: messageSelector(fixture.expected.targetMessageIDs.at(-1)!),
+      },
+    )
+    report(result)
+    expect(result.contentBeforeReview).toBe(true)
+    await expect(page.locator('[data-component="session-review"]')).toBeVisible()
+  })
+
+  benchmark("closes the only session tab and paints home", async ({ page, report }) => {
+    await setup(page, [fixture.sourceID])
+    const href = stressSessionHref(fixture.sourceID)
+    await page.goto(href)
+    await expectSessionTitle(page, fixture.expected.sourceTitle)
+    await waitForStableTimeline(page, fixture.expected.sourceMessageIDs.at(-1)!)
+    const tab = page.locator(`[data-slot="titlebar-tabs"] a[href="${href}"]`).first()
+    const close = tab.locator("..").locator('[data-component="icon-button-v2"]')
+    await expect(close).toBeVisible()
+    const result = await measureNavigationMilestones(page, {
+      triggerSelector: '[data-slot="titlebar-tabs"] [data-component="icon-button-v2"]',
+      milestones: {
+        home: { selector: homeShell },
+        row: { selector: homeRow },
+        tabRemoved: { selector: `[data-slot="titlebar-tabs"] a[href="${href}"]`, visible: false },
+      },
+      navigate: async () => {
+        await close.click()
+        await expect(page).toHaveURL("/")
+      },
+    })
+    report(result)
+  })
+})
+
+async function setup(page: Parameters<typeof mockStressTimeline>[0], sessionIDs: string[]) {
+  await mockStressTimeline(page)
+  await installTimelineSettings(page)
+  await installStressSessionTabs(page, { sessionIDs })
+}
+
+function messageSelector(id: string) {
+  return `[data-message-id="${id}"]`
+}

packages/app/e2e/performance/timeline/navigation-milestones.ts

@@ -0,0 +1,128 @@
+import type { Page } from "@playwright/test"
+
+export type NavigationMilestoneSample = {
+  observedAtMs: number
+  milestones: Record<string, boolean>
+}
+
+export function summarizeNavigationMilestones(samples: NavigationMilestoneSample[]) {
+  const names = Object.keys(samples[0]?.milestones ?? {})
+  const summarize = (matches: (sample: NavigationMilestoneSample) => boolean) => {
+    const first = samples.find(matches)
+    const stable = samples.findIndex(
+      (sample, index) =>
+        index + 2 < samples.length && matches(sample) && matches(samples[index + 1]!) && matches(samples[index + 2]!),
+    )
+    return {
+      firstObservedMs: first?.observedAtMs ?? null,
+      stableObservedMs: stable === -1 ? null : samples[stable + 2]!.observedAtMs,
+    }
+  }
+  return {
+    samples: samples.length,
+    milestones: Object.fromEntries(
+      names.map((name) => [name, summarize((sample) => sample.milestones[name] === true)]),
+    ),
+    all: summarize((sample) => names.every((name) => sample.milestones[name] === true)),
+  }
+}
+
+type NavigationMilestoneProbe = {
+  samples: NavigationMilestoneSample[]
+  stop: () => void
+}
+
+export async function measureNavigationMilestones(
+  page: Page,
+  input: {
+    triggerSelector: string
+    milestones: Record<string, { selector: string; visible?: boolean }>
+    navigate: () => Promise<void>
+  },
+) {
+  await page.evaluate(
+    ({ triggerSelector, milestones }) => {
+      const samples: NavigationMilestoneSample[] = []
+      const streaks = new Map<string, number>()
+      const marked = new Set<string>()
+      let started: number | undefined
+      let running = true
+      const visible = (selector: string) =>
+        [...document.querySelectorAll<HTMLElement>(selector)].some((element) => {
+          const rect = element.getBoundingClientRect()
+          const style = getComputedStyle(element)
+          return rect.width > 0 && rect.height > 0 && style.visibility !== "hidden" && style.display !== "none"
+        })
+      const sample = () => {
+        if (!running || started === undefined) return
+        requestAnimationFrame(() => {
+          setTimeout(() => {
+            if (!running || started === undefined) return
+            const current = Object.fromEntries(
+              Object.entries(milestones).map(([name, milestone]) => [
+                name,
+                milestone.visible === false ? !document.querySelector(milestone.selector) : visible(milestone.selector),
+              ]),
+            )
+            samples.push({
+              observedAtMs: performance.now() - started,
+              milestones: current,
+            })
+            Object.entries(current).forEach(([name, value]) => {
+              if (!value) {
+                streaks.set(name, 0)
+                return
+              }
+              if (!marked.has(`${name}.first`)) {
+                performance.mark(`opencode.navigation.${name}.first`)
+                marked.add(`${name}.first`)
+              }
+              const streak = (streaks.get(name) ?? 0) + 1
+              streaks.set(name, streak)
+              if (streak === 3) performance.mark(`opencode.navigation.${name}.stable`)
+            })
+            const all = Object.values(current).every(Boolean)
+            const allStreak = all ? (streaks.get("all") ?? 0) + 1 : 0
+            streaks.set("all", allStreak)
+            if (all && !marked.has("all.first")) {
+              performance.mark("opencode.navigation.all.first")
+              marked.add("all.first")
+            }
+            if (allStreak === 3) performance.mark("opencode.navigation.all.stable")
+            sample()
+          }, 0)
+        })
+      }
+      document.addEventListener(
+        "click",
+        (event) => {
+          if (!(event.target instanceof Element) || !event.target.closest(triggerSelector)) return
+          started = performance.now()
+          performance.mark("opencode.navigation.click")
+          sample()
+        },
+        { capture: true, once: true },
+      )
+      ;(window as Window & { __navigationMilestones?: NavigationMilestoneProbe }).__navigationMilestones = {
+        samples,
+        stop: () => {
+          running = false
+        },
+      }
+    },
+    { triggerSelector: input.triggerSelector, milestones: input.milestones },
+  )
+  await input.navigate()
+  await page.waitForFunction(() => {
+    const samples = (window as Window & { __navigationMilestones?: NavigationMilestoneProbe }).__navigationMilestones
+      ?.samples
+    if (!samples || samples.length < 3) return false
+    return samples.slice(-3).every((sample) => Object.values(sample.milestones).every(Boolean))
+  })
+  const samples = await page.evaluate(() => {
+    const probe = (window as Window & { __navigationMilestones?: NavigationMilestoneProbe }).__navigationMilestones!
+    probe.stop()
+    return probe.samples
+  })
+  return { summary: summarizeNavigationMilestones(samples), samples }
+}

packages/app/e2e/performance/timeline/session-tab-flash.spec.ts

@@ -0,0 +1,67 @@
+import { benchmark, expect } from "../benchmark"
+import { expectSessionTitle } from "../../utils/waits"
+import { fixture } from "./session-timeline-stress.fixture"
+import {
+  collectCachedRepaintTrace,
+  compressCachedRepaintTrace,
+  installCachedRepaintProbe,
+  waitForCachedRepaintWindow,
+} from "./session-tab-repaint-probe"
+import { waitForStableTimeline } from "./session-tab-switch-probe"
+import {
+  installStressSessionTabs,
+  installTimelineSettings,
+  mockStressTimeline,
+  stressSessionHref,
+} from "./timeline-test-helpers"
+
+benchmark("samples cached session repaint after the click", async ({ page, report }) => {
+  benchmark.setTimeout(120_000)
+  await mockStressTimeline(page)
+  await installStressSessionTabs(page)
+  await installTimelineSettings(page)
+  await page.goto(stressSessionHref(fixture.targetID))
+  await expectSessionTitle(page, fixture.expected.targetTitle)
+  await waitForStableTimeline(page, fixture.expected.targetMessageIDs.at(-1)!)
+  await page
+    .locator(`[data-slot="titlebar-tabs"] a[href="${stressSessionHref(fixture.sourceID)}"]`)
+    .first()
+    .click()
+  await expectSessionTitle(page, fixture.expected.sourceTitle)
+  await waitForStableTimeline(page, fixture.expected.sourceMessageIDs.at(-1)!)
+
+  await installCachedRepaintProbe(page, {
+    targetHref: stressSessionHref(fixture.targetID),
+    destination: fixture.messages[fixture.targetID].map((message) => message.info.id),
+    source: fixture.messages[fixture.sourceID].map((message) => message.info.id),
+    last: fixture.expected.targetMessageIDs.at(-1)!,
+    windowMs: 1_000,
+  })
+
+  await page
+    .locator(`[data-slot="titlebar-tabs"] a[href="${stressSessionHref(fixture.targetID)}"]`)
+    .first()
+    .click()
+  await Promise.all([expectSessionTitle(page, fixture.expected.targetTitle), waitForCachedRepaintWindow(page, 1_000)])
+  const result = await collectCachedRepaintTrace(page)
+  report(compressCachedRepaintTrace(result))
+  expect(result.samples.length).toBeGreaterThan(0)
+})
+
+benchmark("prefetches every open session tab", async ({ page, report }) => {
+  const prefetched = new Set<string>()
+  await mockStressTimeline(page, {
+    onMessages: (input) => {
+      if (!input.before && input.phase === "start") prefetched.add(input.sessionID)
+    },
+  })
+  await installStressSessionTabs(page, {
+    sessionIDs: [fixture.sourceID, fixture.targetID, fixture.childID],
+  })
+  await installTimelineSettings(page)
+  await page.goto(stressSessionHref(fixture.sourceID))
+  await expectSessionTitle(page, fixture.expected.sourceTitle)
+
+  await expect.poll(() => prefetched.has(fixture.childID)).toBe(true)
+  report({ prefetched: [...prefetched] })
+})

packages/app/e2e/performance/timeline/session-tab-repaint-probe.ts

@@ -0,0 +1,251 @@
+import type { Page } from "@playwright/test"
+
+type CachedRepaintTrace = {
+  timeOriginEpochMs: number
+  startedAtPerformanceMs: number
+  samples: {
+    observedAtMs: number
+    root: number | undefined
+    scrollTop: number
+    scrollHeight: number
+    bottomErrorPx: number | undefined
+    last: boolean
+    rows: { key: string | undefined; node: number; top: number; bottom: number }[]
+    mounted: number
+    center: string | undefined
+    destination: string[]
+    source: string[]
+  }[]
+  mutations: { observedAtMs: number; changed: { type: string; node: number }[] }[]
+  shifts: { occurredAtMs: number; value: number }[]
+  windowMs: number
+  running: boolean
+  stop: () => void
+}
+
+export async function installCachedRepaintProbe(
+  page: Page,
+  input: { targetHref: string; destination: string[]; source: string[]; last: string; windowMs: number },
+) {
+  await page.evaluate(({ targetHref, destination, source, last, windowMs }) => {
+    const destinationIDs = new Set(destination)
+    const sourceIDs = new Set(source)
+    const nodeIDs = new WeakMap<Node, number>()
+    let nextNodeID = 1
+    const id = (node: Node) => {
+      const current = nodeIDs.get(node)
+      if (current) return current
+      nodeIDs.set(node, nextNodeID)
+      return nextNodeID++
+    }
+    const state: CachedRepaintTrace = {
+      timeOriginEpochMs: performance.timeOrigin,
+      startedAtPerformanceMs: 0,
+      samples: [],
+      mutations: [],
+      shifts: [],
+      windowMs,
+      running: false,
+      stop: () => {},
+    }
+    const recordShifts = (entries: PerformanceEntry[]) => {
+      if (!state.running) return
+      state.shifts.push(
+        ...entries
+          .map((entry) => {
+            if (
+              entry.startTime < state.startedAtPerformanceMs ||
+              entry.startTime > state.startedAtPerformanceMs + state.windowMs
+            )
+              return
+            return {
+              occurredAtMs: entry.startTime - state.startedAtPerformanceMs,
+              value: (entry as PerformanceEntry & { value: number }).value,
+            }
+          })
+          .filter((entry): entry is { occurredAtMs: number; value: number } => entry !== undefined),
+      )
+    }
+    const shiftObserver = new PerformanceObserver((entries) => recordShifts(entries.getEntries()))
+    shiftObserver.observe({ type: "layout-shift" })
+    const recordMutations = (entries: MutationRecord[]) => {
+      if (!state.running) return
+      const observedAtMs = performance.now() - state.startedAtPerformanceMs
+      if (observedAtMs > state.windowMs) return
+      const changed = entries.flatMap((entry) => [
+        ...[...entry.addedNodes].map((node) => ({ type: "add", node: id(node) })),
+        ...[...entry.removedNodes].map((node) => ({ type: "remove", node: id(node) })),
+      ])
+      if (changed.length) state.mutations.push({ observedAtMs, changed })
+    }
+    const mutationObserver = new MutationObserver(recordMutations)
+    mutationObserver.observe(document.documentElement, { childList: true, subtree: true })
+    state.stop = () => {
+      recordShifts(shiftObserver.takeRecords())
+      recordMutations(mutationObserver.takeRecords())
+      state.running = false
+      shiftObserver.disconnect()
+      mutationObserver.disconnect()
+    }
+    const sample = () => {
+      if (!state.running) return
+      setTimeout(() => {
+        if (!state.running) return
+        const observedAtMs = performance.now() - state.startedAtPerformanceMs
+        if (observedAtMs > state.windowMs) return
+        const root = [...document.querySelectorAll<HTMLElement>(".scroll-view__viewport")].find((element) =>
+          element.querySelector("[data-timeline-row]"),
+        )
+        if (root) {
+          const view = root.getBoundingClientRect()
+          const rows = [...root.querySelectorAll<HTMLElement>("[data-timeline-key]")]
+            .map((element) => ({
+              key: element.dataset.timelineKey,
+              node: id(element),
+              rect: element.getBoundingClientRect(),
+            }))
+            .filter((item) => item.rect.bottom > view.top && item.rect.top < view.bottom)
+            .map((item) => ({
+              key: item.key,
+              node: item.node,
+              top: item.rect.top - view.top,
+              bottom: item.rect.bottom - view.top,
+            }))
+          const messages = [...root.querySelectorAll<HTMLElement>("[data-message-id]")]
+            .filter((element) => {
+              const rect = element.getBoundingClientRect()
+              return rect.bottom > view.top && rect.top < view.bottom
+            })
+            .map((element) => element.dataset.messageId!)
+          const spacer = root.querySelector<HTMLElement>('[data-timeline-row="bottom-spacer"]')?.getBoundingClientRect()
+          state.samples.push({
+            observedAtMs,
+            root: id(root),
+            scrollTop: root.scrollTop,
+            scrollHeight: root.scrollHeight,
+            bottomErrorPx: spacer ? spacer.bottom - view.bottom : undefined,
+            last: messages.includes(last),
+            rows,
+            mounted: root.querySelectorAll("[data-timeline-key]").length,
+            center: document
+              .elementFromPoint(view.left + view.width / 2, view.top + view.height / 2)
+              ?.textContent?.slice(0, 80),
+            destination: messages.filter((messageID) => destinationIDs.has(messageID)),
+            source: messages.filter((messageID) => sourceIDs.has(messageID)),
+          })
+        } else {
+          state.samples.push({
+            observedAtMs,
+            root: undefined,
+            scrollTop: 0,
+            scrollHeight: 0,
+            bottomErrorPx: undefined,
+            last: false,
+            rows: [],
+            mounted: 0,
+            center: document.elementFromPoint(innerWidth / 2, innerHeight / 2)?.textContent?.slice(0, 80),
+            destination: [],
+            source: [],
+          })
+        }
+        requestAnimationFrame(sample)
+      }, 0)
+    }
+    document.addEventListener(
+      "click",
+      (event) => {
+        const link = event.target instanceof Element ? event.target.closest("a") : undefined
+        if (link?.getAttribute("href") !== targetHref) return
+        state.startedAtPerformanceMs = performance.now()
+        state.running = true
+        requestAnimationFrame(sample)
+      },
+      { capture: true, once: true },
+    )
+    ;(window as Window & { __cachedFlash?: CachedRepaintTrace }).__cachedFlash = state
+  }, input)
+}
+
+export function layoutShiftSample(entry: Pick<PerformanceEntry, "startTime"> & { value: number }, started: number) {
+  if (entry.startTime < started) return
+  return { occurredAtMs: entry.startTime - started, value: entry.value }
+}
+
+export async function waitForCachedRepaintWindow(page: Page, durationMs: number) {
+  await page.waitForFunction((durationMs) => {
+    const state = (window as Window & { __cachedFlash?: CachedRepaintTrace }).__cachedFlash
+    return !!state?.running && performance.now() - state.startedAtPerformanceMs >= durationMs
+  }, durationMs)
+}
+
+export async function collectCachedRepaintTrace(page: Page) {
+  return page.evaluate(() => {
+    const state = (window as Window & { __cachedFlash?: CachedRepaintTrace }).__cachedFlash!
+    state.stop()
+    return state
+  })
+}
+
+export function summarizeCachedRepaintTrace(trace: CachedRepaintTrace) {
+  const roots = trace.samples.map((sample) => sample.root)
+  const bottomErrors = trace.samples.flatMap((sample) =>
+    sample.bottomErrorPx === undefined ? [] : [Math.abs(sample.bottomErrorPx)],
+  )
+  const category = (sample: CachedRepaintTrace["samples"][number]) => {
+    if (sample.source.length) return "source"
+    if (sample.root === undefined || sample.rows.length === 0) return "blank"
+    if (!sample.destination.length) return "unknown"
+    if (sample.last && Math.abs(sample.bottomErrorPx ?? Infinity) <= 1) return "correct"
+    return "wrongDestination"
+  }
+  return {
+    samples: trace.samples.length,
+    durationMs: trace.samples.at(-1)?.observedAtMs ?? 0,
+    firstSampleObservedMs: trace.samples[0]?.observedAtMs,
+    firstSampleCorrect: trace.samples[0] ? category(trace.samples[0]) === "correct" : false,
+    blankSamples: trace.samples.filter((sample) => category(sample) === "blank").length,
+    sourceSamples: trace.samples.filter((sample) => category(sample) === "source").length,
+    wrongDestinationSamples: trace.samples.filter((sample) => category(sample) === "wrongDestination").length,
+    unknownSamples: trace.samples.filter((sample) => category(sample) === "unknown").length,
+    rootChanges: roots.slice(1).filter((root, index) => root !== roots[index]).length,
+    mountedMin: trace.samples.length ? Math.min(...trace.samples.map((sample) => sample.mounted)) : 0,
+    mountedMax: Math.max(...trace.samples.map((sample) => sample.mounted)),
+    maxBottomErrorPx: Math.max(0, ...bottomErrors),
+    mutationBatches: trace.mutations.length,
+    addedNodes: trace.mutations.reduce(
+      (sum, batch) => sum + batch.changed.filter((change) => change.type === "add").length,
+      0,
+    ),
+    removedNodes: trace.mutations.reduce(
+      (sum, batch) => sum + batch.changed.filter((change) => change.type === "remove").length,
+      0,
+    ),
+    layoutShiftValueSum: trace.shifts.reduce((sum, shift) => sum + shift.value, 0),
+    maxLayoutShiftValue: Math.max(0, ...trace.shifts.map((shift) => shift.value)),
+  }
+}
+
+export function compressCachedRepaintTrace(trace: CachedRepaintTrace) {
+  const samples: {
+    observedAtMs: number[]
+    state: Omit<CachedRepaintTrace["samples"][number], "observedAtMs">
+  }[] = []
+  for (const sample of trace.samples) {
+    const { observedAtMs, ...state } = sample
+    const previous = samples.at(-1)
+    if (previous && JSON.stringify(previous.state) === JSON.stringify(state)) {
+      previous.observedAtMs.push(observedAtMs)
+      continue
+    }
+    samples.push({ observedAtMs: [observedAtMs], state })
+  }
+  return {
+    timeOriginEpochMs: trace.timeOriginEpochMs,
+    startedAtPerformanceMs: trace.startedAtPerformanceMs,
+    windowMs: trace.windowMs,
+    summary: summarizeCachedRepaintTrace(trace),
+    samples,
+    mutations: trace.mutations,
+    shifts: trace.shifts,
+  }
+}

packages/app/e2e/performance/timeline/session-tab-switch-benchmark.spec.ts

@@ -0,0 +1,79 @@
+import type { Page } from "@playwright/test"
+import { expectSessionTitle } from "../../utils/waits"
+import { benchmark, expect, withBenchmarkPage } from "../benchmark"
+import { fixture } from "./session-timeline-stress.fixture"
+import { installStressSessionTabs, mockStressTimeline, stressSessionHref } from "./timeline-test-helpers"
+import { measureSessionSwitch, waitForStableTimeline } from "./session-tab-switch-probe"
+
+type Result = Awaited<ReturnType<typeof measureSessionSwitch>>
+
+benchmark("benchmarks cold and hot session tab switching", async ({ browser, report }, testInfo) => {
+  benchmark.setTimeout(180_000)
+  const results = { cold: [] as Result[], hot: [] as Result[] }
+  for (const mode of ["cold", "hot"] as const) {
+    for (let run = 0; run < 5; run++) {
+      results[mode].push(
+        await withBenchmarkPage(browser, `session-tab-switch-${mode}-${run}`, (page) => trial(page, mode), testInfo),
+      )
+    }
+  }
+  report({ results, summary: summarize(results) })
+})
+
+async function trial(page: Page, mode: "cold" | "hot") {
+  await mockStressTimeline(page)
+  await installStressSessionTabs(page)
+  if (mode === "hot") {
+    await page.goto(stressSessionHref(fixture.targetID))
+    await expectSessionTitle(page, fixture.expected.targetTitle)
+    await waitForStableTimeline(page, fixture.expected.targetMessageIDs.at(-1)!)
+    await switchSession(page, fixture.sourceID, fixture.expected.sourceTitle)
+  } else {
+    await page.goto(stressSessionHref(fixture.sourceID))
+    await expectSessionTitle(page, fixture.expected.sourceTitle)
+  }
+  await waitForStableTimeline(page, fixture.expected.sourceMessageIDs.at(-1)!)
+
+  const destinationIDs = fixture.messages[fixture.targetID].map((message) => message.info.id)
+  const sourceIDs = fixture.messages[fixture.sourceID].map((message) => message.info.id)
+  const lastID = fixture.expected.targetMessageIDs.at(-1)!
+  const href = stressSessionHref(fixture.targetID)
+  const result = await measureSessionSwitch(page, {
+    destinationIDs,
+    sourceIDs,
+    lastID,
+    href,
+    switch: () => switchSession(page, fixture.targetID, fixture.expected.targetTitle),
+  })
+  return result
+}
+
+function summarize(results: Record<"cold" | "hot", Result[]>) {
+  const stats = (values: (number | null)[]) => {
+    const sorted = values.filter((value): value is number => value !== null).sort((a, b) => a - b)
+    return {
+      min: sorted[0] ?? null,
+      median: sorted[Math.floor(sorted.length / 2)] ?? null,
+      max: sorted.at(-1) ?? null,
+      missing: values.length - sorted.length,
+    }
+  }
+  return Object.fromEntries(
+    Object.entries(results).map(([mode, values]) => [
+      mode,
+      {
+        firstDestinationObservedMs: stats(values.map((value) => value.firstDestinationObservedMs)),
+        firstCorrectObservedMs: stats(values.map((value) => value.firstCorrectObservedMs)),
+        stableObservedMs: stats(values.map((value) => value.stableObservedMs)),
+      },
+    ]),
+  )
+}
+
+async function switchSession(page: Page, sessionID: string, title: string) {
+  const href = stressSessionHref(sessionID)
+  const tab = page.locator(`[data-slot="titlebar-tabs"] a[href="${href}"]`).first()
+  await expect(tab).toBeVisible()
+  await tab.click()
+  await expectSessionTitle(page, title)
+}

packages/app/e2e/performance/timeline/session-tab-switch-metrics.ts

@@ -0,0 +1,46 @@
+export type SessionSwitchSample = {
+  observedAtMs: number
+  destination: string[]
+  source: string[]
+  hasVisibleRows: boolean
+  last: boolean
+  bottomErrorPx?: number
+}
+
+export function classifySessionSwitch(samples: SessionSwitchSample[]) {
+  const firstDestination = samples.findIndex((sample) => sample.destination.length > 0)
+  const firstCorrect = samples.findIndex(isCorrectDestination)
+  const stable = samples.findIndex((_, index) => isStableSessionSwitch(samples.slice(index, index + 3)))
+  return {
+    firstDestinationObservedMs: samples[firstDestination]?.observedAtMs ?? null,
+    firstCorrectObservedMs: samples[firstCorrect]?.observedAtMs ?? null,
+    stableObservedMs: samples[stable + 2]?.observedAtMs ?? null,
+    wrongDestinationSamples: samples
+      .slice(firstDestination)
+      .filter((sample) => sample.destination.length > 0 && !sample.last).length,
+    blankSamples: samples.filter((sample) => !sample.hasVisibleRows).length,
+    unknownSamples: samples.filter(
+      (sample) => sample.hasVisibleRows && sample.destination.length === 0 && sample.source.length === 0,
+    ).length,
+    sourceSamples: samples.filter((sample) => sample.source.length > 0).length,
+  }
+}
+
+export function isCorrectDestination(sample: SessionSwitchSample) {
+  return (
+    sample.destination.length > 0 &&
+    sample.source.length === 0 &&
+    sample.last &&
+    Math.abs(sample.bottomErrorPx ?? Infinity) <= 1
+  )
+}
+
+export function isStableSessionSwitch(samples: SessionSwitchSample[]) {
+  return samples.length === 3 && samples.every(isCorrectDestination)
+}
+
+export function isStableDestination(samples: Pick<SessionSwitchSample, "last" | "bottomErrorPx">[]) {
+  return (
+    samples.length === 3 && samples.every((sample) => sample.last && Math.abs(sample.bottomErrorPx ?? Infinity) <= 1)
+  )
+}

packages/app/e2e/performance/timeline/session-tab-switch-probe.ts

@@ -0,0 +1,152 @@
+import { expect, type Page } from "@playwright/test"
+import { classifySessionSwitch, isStableDestination, type SessionSwitchSample } from "./session-tab-switch-metrics"
+
+type SessionSwitchProbe = {
+  samples: SessionSwitchSample[]
+  stop: () => void
+}
+
+async function installSessionSwitchProbe(
+  page: Page,
+  input: { destinationIDs: string[]; sourceIDs: string[]; lastID: string; href: string },
+) {
+  await page.evaluate(({ destinationIDs, sourceIDs, lastID, href }) => {
+    const destination = new Set(destinationIDs)
+    const source = new Set(sourceIDs)
+    const samples: SessionSwitchSample[] = []
+    let started: number | undefined
+    let running = true
+    const sample = () => {
+      if (!running || started === undefined) return
+      setTimeout(() => {
+        if (!running || started === undefined) return
+        const observedAtMs = performance.now() - started
+        const root = [...document.querySelectorAll<HTMLElement>(".scroll-view__viewport")].find((element) =>
+          element.querySelector("[data-timeline-row]"),
+        )
+        if (root) {
+          const view = root.getBoundingClientRect()
+          const visible = [...root.querySelectorAll<HTMLElement>("[data-message-id]")]
+            .filter((element) => {
+              const rect = element.getBoundingClientRect()
+              return rect.bottom > view.top && rect.top < view.bottom
+            })
+            .map((element) => element.dataset.messageId!)
+          const hasVisibleRows = [...root.querySelectorAll<HTMLElement>("[data-timeline-key]")].some((element) => {
+            const rect = element.getBoundingClientRect()
+            return rect.bottom > view.top && rect.top < view.bottom
+          })
+          const spacer = root.querySelector<HTMLElement>('[data-timeline-row="bottom-spacer"]')?.getBoundingClientRect()
+          samples.push({
+            observedAtMs,
+            destination: visible.filter((id) => destination.has(id)),
+            source: visible.filter((id) => source.has(id)),
+            hasVisibleRows,
+            last: visible.includes(lastID),
+            bottomErrorPx: spacer ? spacer.bottom - view.bottom : undefined,
+          })
+        } else {
+          samples.push({ observedAtMs, destination: [], source: [], hasVisibleRows: false, last: false })
+        }
+        requestAnimationFrame(sample)
+      }, 0)
+    }
+    document.addEventListener(
+      "click",
+      (event) => {
+        const link = event.target instanceof Element ? event.target.closest("a") : undefined
+        if (link?.getAttribute("href") !== href) return
+        started = performance.now()
+        requestAnimationFrame(sample)
+      },
+      { capture: true, once: true },
+    )
+    ;(window as Window & { __sessionSwitchProbe?: SessionSwitchProbe }).__sessionSwitchProbe = {
+      samples,
+      stop: () => {
+        running = false
+      },
+    }
+  }, input)
+}
+
+async function waitForStableSessionSwitch(page: Page) {
+  await page.waitForFunction(() => {
+    const samples = (window as Window & { __sessionSwitchProbe?: SessionSwitchProbe }).__sessionSwitchProbe?.samples
+    if (!samples) return false
+    return samples.some((_, index) => {
+      const stable = samples.slice(index, index + 3)
+      return (
+        stable.length === 3 &&
+        stable.every(
+          (sample) =>
+            sample.destination.length > 0 &&
+            sample.source.length === 0 &&
+            sample.last &&
+            Math.abs(sample.bottomErrorPx ?? Infinity) <= 1,
+        )
+      )
+    })
+  })
+}
+
+async function collectSessionSwitchResult(page: Page) {
+  const samples = await page.evaluate(() => {
+    const probe = (window as Window & { __sessionSwitchProbe?: SessionSwitchProbe }).__sessionSwitchProbe!
+    probe.stop()
+    return probe.samples
+  })
+  return classifySessionSwitch(samples)
+}
+
+export async function measureSessionSwitch(
+  page: Page,
+  input: { destinationIDs: string[]; sourceIDs: string[]; lastID: string; href: string; switch: () => Promise<void> },
+) {
+  const { switch: run, ...probe } = input
+  await installSessionSwitchProbe(page, probe)
+  await run()
+  await waitForStableSessionSwitch(page)
+  return collectSessionSwitchResult(page)
+}
+
+export async function waitForStableTimeline(page: Page, lastID: string) {
+  const samples: Pick<SessionSwitchSample, "last" | "bottomErrorPx">[] = []
+  await expect
+    .poll(
+      async () => {
+        samples.push(
+          await page.evaluate(
+            (lastID) =>
+              new Promise<Pick<SessionSwitchSample, "last" | "bottomErrorPx">>((resolve) => {
+                requestAnimationFrame(() =>
+                  setTimeout(() => {
+                    const root = [...document.querySelectorAll<HTMLElement>(".scroll-view__viewport")].find((element) =>
+                      element.querySelector("[data-timeline-row]"),
+                    )
+                    if (!root) {
+                      resolve({ last: false })
+                      return
+                    }
+                    const view = root.getBoundingClientRect()
+                    const last = [...root.querySelectorAll<HTMLElement>("[data-message-id]")].some((element) => {
+                      if (element.dataset.messageId !== lastID) return false
+                      const rect = element.getBoundingClientRect()
+                      return rect.bottom > view.top && rect.top < view.bottom
+                    })
+                    const spacer = root
+                      .querySelector<HTMLElement>('[data-timeline-row="bottom-spacer"]')
+                      ?.getBoundingClientRect()
+                    resolve({ last, bottomErrorPx: spacer ? spacer.bottom - view.bottom : undefined })
+                  }, 0),
+                )
+              }),
+            lastID,
+          ),
+        )
+        return isStableDestination(samples.slice(-3))
+      },
+      { timeout: 30_000, intervals: [0] },
+    )
+    .toBe(true)
+}

packages/app/e2e/performance/timeline/session-timeline-benchmark.fixture.ts

@@ -0,0 +1,487 @@
+import { base64Encode } from "@opencode-ai/core/util/encode"
+import type { Page } from "@playwright/test"
+import { mockOpenCodeServer } from "../../utils/mock-server"
+import { expectAppVisible, expectSessionTitle } from "../../utils/waits"
+import { expect } from "../benchmark"
+
+const directory = "C:/OpenCode/TimelineStateRegression"
+const projectID = "proj_timeline_state_regression"
+const sessionID = "ses_timeline_state_regression"
+const userMessageID = "msg_user_regression"
+const assistantMessageID = "msg_assistant_regression"
+const editPartID = "prt_0001_edit"
+export const textPartID = "prt_9999_text"
+const title = "Timeline collapse state regression"
+const model = { providerID: "opencode", modelID: "claude-opus-4-6", variant: "max" }
+
+type EventPayload = {
+  directory: string
+  payload: Record<string, unknown>
+}
+
+const userMessage = {
+  info: {
+    id: userMessageID,
+    sessionID,
+    role: "user",
+    time: { created: 1700000000000 },
+    summary: { diffs: [] },
+    agent: "build",
+    model,
+  },
+  parts: [
+    {
+      id: "prt_user_text",
+      sessionID,
+      messageID: userMessageID,
+      type: "text",
+      text: "Please edit the file.",
+    },
+  ],
+}
+
+const editPart = {
+  id: editPartID,
+  sessionID,
+  messageID: assistantMessageID,
+  type: "tool",
+  callID: "call_edit_regression",
+  tool: "edit",
+  state: {
+    status: "completed",
+    input: { filePath: "src/regression.ts" },
+    output: "Edited src/regression.ts",
+    title: "src/regression.ts",
+    metadata: {
+      filediff: {
+        file: "src/regression.ts",
+        additions: 1,
+        deletions: 1,
+        before: "export const value = 'before'\n",
+        after: "export const value = 'after'\n",
+      },
+      diff: "diff --git a/src/regression.ts b/src/regression.ts\n-export const value = 'before'\n+export const value = 'after'\n",
+    },
+    time: { start: 1700000001000, end: 1700000002000 },
+  },
+}
+
+const streamedTextPart = {
+  id: textPartID,
+  sessionID,
+  messageID: assistantMessageID,
+  type: "text",
+  text: "Streaming added a later assistant text part.",
+}
+
+const assistantMessage = {
+  info: {
+    id: assistantMessageID,
+    sessionID,
+    role: "assistant",
+    time: { created: 1700000001000 },
+    parentID: userMessageID,
+    modelID: model.modelID,
+    providerID: model.providerID,
+    mode: "build",
+    agent: "build",
+    path: { cwd: directory, root: directory },
+    cost: 0.01,
+    tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
+    variant: "max",
+  },
+  parts: [editPart],
+}
+
+export async function setupTimelineBenchmark(page: Page, options: { historyTurns: number; eventBatch: number }) {
+  const events: EventPayload[] = []
+  let eventBatch = options.eventBatch
+  await mockOpenCodeServer(page, {
+    directory,
+    project: project(),
+    provider: provider(),
+    sessions: [session()],
+    pageMessages: () => ({
+      items: [
+        ...Array.from({ length: options.historyTurns }, (_, index) => performanceTurn(index)).flat(),
+        userMessage,
+        assistantMessage,
+      ],
+    }),
+    events: () => events.splice(0, eventBatch),
+    eventRetry: 16,
+  })
+  await page.addInitScript(() => {
+    localStorage.setItem(
+      "settings.v3",
+      JSON.stringify({
+        general: {
+          editToolPartsExpanded: true,
+          shellToolPartsExpanded: true,
+          showReasoningSummaries: true,
+        },
+      }),
+    )
+  })
+  await page.setViewportSize({ width: 1366, height: 768 })
+  const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
+  const text = page.locator(`[data-timeline-part-id="${textPartID}"]`).first()
+  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await expectSessionTitle(page, title)
+  await expectAppVisible(scroller)
+  return {
+    scroller,
+    text,
+    transport: {
+      enqueue(payload: EventPayload | EventPayload[]) {
+        events.push(...(Array.isArray(payload) ? payload : [payload]))
+      },
+      pendingCount() {
+        return events.length
+      },
+      releaseAll() {
+        eventBatch = events.length
+      },
+    },
+    async scrollToBottom() {
+      await scroller.evaluate((element) => {
+        element.scrollTop = element.scrollHeight
+      })
+    },
+    async waitForStableGeometry() {
+      await expect
+        .poll(() => scroller.evaluate((element) => element.scrollHeight - element.clientHeight - element.scrollTop))
+        .toBeLessThanOrEqual(1)
+      await page.waitForFunction((partID) => {
+        const root = [...document.querySelectorAll<HTMLElement>(".scroll-view__viewport")].find((element) =>
+          element.querySelector(`[data-timeline-part-id="${partID}"]`),
+        )
+        if (!root) return false
+        return new Promise<boolean>((resolve) => {
+          const height = root.scrollHeight
+          requestAnimationFrame(() =>
+            requestAnimationFrame(() =>
+              resolve(root.scrollHeight === height && root.scrollHeight - root.clientHeight - root.scrollTop <= 1),
+            ),
+          )
+        })
+      }, textPartID)
+    },
+  }
+}
+
+export function buildInitialStreamEvent(deltaCount: number): EventPayload {
+  return {
+    directory,
+    payload: {
+      type: "message.part.updated",
+      properties: {
+        part: {
+          ...streamedTextPart,
+          text: `Streaming${streamChunk(0, deltaCount + 1)}\n\n\`\`\`ts\nconst initial = true\n\`\`\``,
+        },
+      },
+    },
+  }
+}
+
+export function buildStreamDeltaEvents(deltaCount: number): EventPayload[] {
+  return Array.from({ length: deltaCount }, (_, index) => ({
+    directory,
+    payload: {
+      type: "message.part.delta",
+      properties: {
+        messageID: assistantMessageID,
+        partID: textPartID,
+        field: "text",
+        delta: streamChunk(index + 1, deltaCount + 1),
+      },
+    },
+  }))
+}
+
+function performanceTurn(index: number) {
+  const suffix = String(index).padStart(4, "0")
+  const userID = `msg_0000_${suffix}_a_user`
+  const assistantID = `msg_0000_${suffix}_b_assistant`
+  const before = historicalSource(index, false)
+  const after = historicalSource(index, true)
+  const parts = [
+    ...(index % 5 === 0
+      ? [
+          {
+            id: `prt_0000_${suffix}_reasoning`,
+            sessionID,
+            messageID: assistantID,
+            type: "reasoning",
+            text: `Reviewing the existing implementation. ${"constraint analysis ".repeat(20)}`,
+            time: { start: 1690000001000 + index * 2_000, end: 1690000001200 + index * 2_000 },
+          },
+        ]
+      : []),
+    {
+      id: `prt_0000_${suffix}_assistant`,
+      sessionID,
+      messageID: assistantID,
+      type: "text",
+      text: historicalMarkdown(index),
+    },
+    ...(index % 8 === 0
+      ? [
+          {
+            id: `prt_0000_${suffix}_edit`,
+            sessionID,
+            messageID: assistantID,
+            type: "tool",
+            callID: `call_0000_${suffix}_edit`,
+            tool: "edit",
+            state: {
+              status: "completed",
+              input: { filePath: `src/history-${index}.ts` },
+              output: `Edited src/history-${index}.ts`,
+              title: `src/history-${index}.ts`,
+              metadata: {
+                filediff: { file: `src/history-${index}.ts`, additions: 48, deletions: 48, before, after },
+              },
+              time: { start: 1690000001200 + index * 2_000, end: 1690000001400 + index * 2_000 },
+            },
+          },
+        ]
+      : []),
+    ...(index % 12 === 0
+      ? [
+          {
+            id: `prt_0000_${suffix}_write`,
+            sessionID,
+            messageID: assistantID,
+            type: "tool",
+            callID: `call_0000_${suffix}_write`,
+            tool: "write",
+            state: {
+              status: "completed",
+              input: { filePath: `src/generated-${index}.tsx`, content: after },
+              output: `Wrote src/generated-${index}.tsx`,
+              title: `src/generated-${index}.tsx`,
+              metadata: {
+                filediff: { file: `src/generated-${index}.tsx`, additions: 32, deletions: 0, before: "", after },
+              },
+              time: { start: 1690000001400 + index * 2_000, end: 1690000001500 + index * 2_000 },
+            },
+          },
+        ]
+      : []),
+    ...(index % 16 === 0
+      ? [
+          {
+            id: `prt_0000_${suffix}_patch`,
+            sessionID,
+            messageID: assistantID,
+            type: "tool",
+            callID: `call_0000_${suffix}_patch`,
+            tool: "apply_patch",
+            state: {
+              status: "completed",
+              input: { patchText: realisticPatch(index) },
+              output: "Success. Updated src/components/SessionCard.tsx",
+              title: "src/components/SessionCard.tsx",
+              metadata: {
+                files: [
+                  {
+                    filePath: "src/components/SessionCard.tsx",
+                    relativePath: "src/components/SessionCard.tsx",
+                    type: "update",
+                    additions: 8,
+                    deletions: 3,
+                    patch: realisticPatch(index),
+                    before,
+                    after,
+                  },
+                ],
+              },
+              time: { start: 1690000001500 + index * 2_000, end: 1690000001700 + index * 2_000 },
+            },
+          },
+        ]
+      : []),
+  ]
+  return [
+    {
+      info: {
+        id: userID,
+        sessionID,
+        role: "user",
+        time: { created: 1690000000000 + index * 2_000 },
+        summary: { diffs: [] },
+        agent: "build",
+        model,
+      },
+      parts: [
+        {
+          id: `prt_0000_${suffix}_user`,
+          sessionID,
+          messageID: userID,
+          type: "text",
+          text: `Historical prompt ${index}`,
+        },
+      ],
+    },
+    {
+      info: {
+        id: assistantID,
+        sessionID,
+        role: "assistant",
+        time: { created: 1690000001000 + index * 2_000, completed: 1690000001500 + index * 2_000 },
+        parentID: userID,
+        modelID: model.modelID,
+        providerID: model.providerID,
+        mode: "build",
+        agent: "build",
+        path: { cwd: directory, root: directory },
+        cost: 0.01,
+        tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
+        variant: "max",
+        finish: "stop",
+      },
+      parts,
+    },
+  ]
+}
+
+function historicalMarkdown(index: number) {
+  const code = `import { For, Show, createSignal } from "solid-js"
+
+type SessionRow = { id: string; title: string; active: boolean }
+
+export function SessionList(props: { rows: SessionRow[] }) {
+  const [selected, setSelected] = createSignal<string>()
+  return (
+    <section aria-label="Sessions">
+      <For each={props.rows}>{(row) => (
+        <button classList={{ active: row.active }} onClick={() => setSelected(row.id)}>
+          <Show when={selected() === row.id} fallback={row.title}>{row.title.toUpperCase()}</Show>
+        </button>
+      )}</For>
+    </section>
+  )
+}`
+  return `## Session renderer review ${index}
+
+The active session keeps **semantic row identity** while reconciling measured content. See [Solid documentation](https://docs.solidjs.com/) and the inline \`measureElement(node)\` call.
+
+| Concern | Current behavior | Verification |
+| --- | --- | --- |
+| streaming | appends Markdown blocks | painted frames |
+| geometry | anchors visible rows | DOM coordinates |
+| tools | preserves expanded state | keyed remount probe |
+
+> Long sessions combine Markdown, syntax highlighting, tool output, and asynchronously rendered diffs.
+
+${index % 4 === 0 ? `\`\`\`tsx\n${code}\n\`\`\`\n\n\`\`\`bash\nbun typecheck\nbun test --preload ./happydom.ts ./src/pages/session\ngit diff --check\n\`\`\`` : "- preserve the viewport anchor\n- avoid replacing stable Markdown nodes\n- process provider deltas without blocking input"}`
+}
+
+function historicalSource(index: number, updated: boolean) {
+  const method = updated ? "toLocaleUpperCase(props.locale)" : "toUpperCase()"
+  const limit = updated ? 24 : 20
+  return `import { createMemo, For } from "solid-js"
+
+type Message = {
+  id: string
+  role: "user" | "assistant"
+  text: string
+  tokens: { input: number; output: number }
+}
+
+export function MessageSummary(props: { messages: Message[]; locale: string }) {
+  const visible = createMemo(() => props.messages.filter((message) => message.text.trim()).slice(-${limit}))
+  const total = createMemo(() => visible().reduce((sum, message) => sum + message.tokens.output, 0))
+  return (
+    <article data-session-index="${index}">
+      <header>{total().toLocaleString(props.locale)} output tokens</header>
+      <For each={visible()}>{(message) => <p data-role={message.role}>{message.text.${method}}</p>}</For>
+    </article>
+  )
+}
+`
+}
+
+function realisticPatch(index: number) {
+  return `*** Begin Patch
+*** Update File: src/components/SessionCard.tsx
+@@
+-const title = props.session.title.toUpperCase()
+-const messages = props.messages.slice(-20)
++const title = props.session.title.toLocaleUpperCase(props.locale)
++const messages = props.messages.filter((message) => message.text.trim()).slice(-24)
++const outputTokens = messages.reduce((sum, message) => sum + message.tokens.output, 0)
+@@
+-  <h2>{title}</h2>
++  <h2 data-session-index="${index}">{title}</h2>
++  <span>{outputTokens.toLocaleString(props.locale)} output tokens</span>
+*** End Patch`
+}
+
+export function streamChunk(index: number, count: number) {
+  if (index === 0) return `\n\n## Implementation plan\n\nStreaming **bold analysis`
+  if (index === count - 1)
+    return `\n\`\`\`\n\n## Verification\n\n- **Typecheck:** passed\n- **Timeline geometry:** stable\n- **Streaming output:** benchmark-complete <!-- stream-${index} -->`
+
+  const section = Math.floor(index / 18) + 1
+  const fragments = [
+    ` continues across three`,
+    ` or four word`,
+    ` provider deltas and`,
+    ` closes in this fragment**. <!-- stream-${index} -->\n\n`,
+    `| Concern | State`,
+    ` | Verification |\n|`,
+    ` --- | ---`,
+    ` | --- |\n|`,
+    ` markdown | incremental |`,
+    ` painted frames | <!-- stream-${index} -->\n\n`,
+    `\`\`\`tsx\nconst row: SessionRow`,
+    ` = rows[index] ??`,
+    ` fallback\nconst title =`,
+    ` row.title.toLocaleUpperCase(locale)\n`,
+    `const selected = createMemo(()`,
+    ` => row.id ===`,
+    ` activeID()) // stream-${index}\n`,
+    `// stream-${index}\n\`\`\`\n\n### Iteration ${section}\n\nStreaming **bold analysis`,
+  ]
+  return fragments[(index - 1) % fragments.length]!
+}
+
+function project() {
+  return {
+    id: projectID,
+    worktree: directory,
+    vcs: "git",
+    name: "timeline-state-regression",
+    time: { created: 1700000000000, updated: 1700000000000 },
+    sandboxes: [],
+  }
+}
+
+function session() {
+  return {
+    id: sessionID,
+    slug: "timeline-state-regression",
+    projectID,
+    directory,
+    title,
+    version: "dev",
+    time: { created: 1700000000000, updated: 1700000000000 },
+  }
+}
+
+function provider() {
+  return {
+    all: [
+      {
+        id: "opencode",
+        name: "OpenCode",
+        models: { "claude-opus-4-6": { id: "claude-opus-4-6", name: "Claude Opus 4.6", limit: { context: 200_000 } } },
+      },
+    ],
+    connected: ["opencode"],
+    default: { providerID: "opencode", modelID: "claude-opus-4-6" },
+  }
+}

packages/app/e2e/performance/timeline/session-timeline-benchmark.spec.ts

@@ -0,0 +1,85 @@
+import { benchmark, benchmarkDiagnostics, expect } from "../benchmark"
+import {
+  buildInitialStreamEvent,
+  buildStreamDeltaEvents,
+  setupTimelineBenchmark,
+  textPartID,
+} from "./session-timeline-benchmark.fixture"
+import { startTimelineProfile } from "./session-timeline-profile"
+import {
+  collectTimelineStreamMetrics,
+  installTimelineStreamProbe,
+  startTimelineStreamProbe,
+} from "./session-timeline-stream-probe"
+
+benchmark.describe("performance: session timeline streaming", () => {
+  benchmark("streams assistant text without remounting or oscillating", async ({ page, report }) => {
+    benchmark.setTimeout(480_000)
+    const cpuThrottle = Number(process.env.TIMELINE_CPU_THROTTLE ?? 30)
+    const deltaCount = Number(process.env.TIMELINE_DELTA_COUNT ?? 160)
+    const historyTurns = Number(process.env.TIMELINE_HISTORY_TURNS ?? 320)
+    const eventBatch = Number(process.env.TIMELINE_EVENT_BATCH ?? 1)
+    const minimal = process.env.TIMELINE_MINIMAL === "1"
+    const profileCPU = process.env.TIMELINE_CPU_PROFILE === "1"
+    const profileVisual = !minimal && profileCPU && process.env.TIMELINE_VISUAL_PROFILE !== "0"
+    const fixture = await setupTimelineBenchmark(page, {
+      historyTurns,
+      eventBatch,
+    })
+
+    fixture.transport.enqueue(buildInitialStreamEvent(deltaCount))
+    const contentStart = performance.now()
+    await expect(fixture.text).toBeVisible()
+    await expect(fixture.text).toContainText("Implementation plan")
+    const initialContentObservedMs = performance.now() - contentStart
+    await fixture.scrollToBottom()
+    await fixture.waitForStableGeometry()
+
+    const profile = await startTimelineProfile(page, { cpuThrottle, profileCPU })
+    await installTimelineStreamProbe(page, { textPartID, finalIndex: deltaCount, profileVisual, minimal })
+    const deltas = buildStreamDeltaEvents(deltaCount)
+    await startTimelineStreamProbe(page)
+    fixture.transport.enqueue(deltas)
+
+    await page.waitForFunction(
+      (finalIndex) =>
+        (
+          window as Window & {
+            __timelineStreamBenchmark?: { applied: { index: number }[] }
+          }
+        ).__timelineStreamBenchmark?.applied.some((value) => value.index === finalIndex),
+      deltaCount,
+      { timeout: 420_000 },
+    )
+    await expect(fixture.text).toContainText("benchmark-complete")
+    await expect(fixture.text).toContainText("Streaming")
+    await fixture.waitForStableGeometry()
+    const metrics = await collectTimelineStreamMetrics(page, {
+      textPartID,
+      finalIndex: deltaCount,
+      navigations: benchmarkDiagnostics(page).navigations,
+    })
+    const delivered = deltas.length - fixture.transport.pendingCount()
+    await profile.stop()
+
+    report(
+      {
+        endToEndInitialContentObservedMs: initialContentObservedMs,
+        ...metrics,
+        deliveredDeltas: delivered,
+        pendingDeltas: fixture.transport.pendingCount(),
+      },
+      {
+        cpuThrottle,
+        profileCPU,
+        profileVisual,
+        minimal,
+        queuedDeltas: deltas.length,
+        historyTurns,
+        eventBatch,
+      },
+    )
+
+    await profile.reset()
+  })
+})

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

@@ -0,0 +1,40 @@
+import type { CDPSession, Page } from "@playwright/test"
+
+export async function startTimelineProfile(page: Page, options: { cpuThrottle: number; profileCPU: boolean }) {
+  const cdp = await page.context().newCDPSession(page)
+  if (options.cpuThrottle > 1) await cdp.send("Emulation.setCPUThrottlingRate", { rate: options.cpuThrottle })
+  if (options.profileCPU) {
+    await cdp.send("Profiler.enable")
+    await cdp.send("Profiler.setSamplingInterval", { interval: 100 })
+    await cdp.send("Profiler.start")
+  }
+  return {
+    async stop() {
+      if (!options.profileCPU) return
+      const result = await cdp.send("Profiler.stop")
+      const self = new Map<number, number>()
+      result.profile.samples?.forEach((id, index) => {
+        const duration = (result.profile.timeDeltas?.[index] ?? 0) / 1_000
+        self.set(id, (self.get(id) ?? 0) + duration)
+      })
+      console.log(
+        "timeline cpu profile",
+        JSON.stringify(
+          result.profile.nodes
+            .map((node) => ({
+              function: node.callFrame.functionName || "(anonymous)",
+              url: node.callFrame.url,
+              line: node.callFrame.lineNumber + 1,
+              selfMs: self.get(node.id) ?? 0,
+            }))
+            .filter((node) => node.selfMs > 1)
+            .sort((a, b) => b.selfMs - a.selfMs)
+            .slice(0, 40),
+        ),
+      )
+    },
+    async reset() {
+      if (options.cpuThrottle > 1) await cdp.send("Emulation.setCPUThrottlingRate", { rate: 1 })
+    },
+  }
+}

packages/app/e2e/performance/timeline/session-timeline-stream-probe.ts

@@ -0,0 +1,547 @@
+import type { Page } from "@playwright/test"
+
+const STREAM_MARKER_PATTERN = "stream-(\\d+)"
+const STREAM_FRAGMENT_COUNT = 18
+
+type TimelineProbeState = {
+  started: number
+  ended: number
+  profileVisual: boolean
+  minimal: boolean
+  frames: number[]
+  frameAt: number[]
+  applied: { at: number; index: number }[]
+  geometry: {
+    scrollTop: number
+    scrollHeight: number
+    clientHeight: number
+    distance: number
+    virtualHeight: number
+    headerHeight: number
+  }[]
+  blanks: number
+  longTasks: number[]
+  layoutShifts: number[]
+  visibleMounts: number
+  visibleUnmounts: number
+  visibleRows: Set<Element>
+  visibleSubtreeMounts: string[]
+  visibleSubtreeUnmounts: string[]
+  visibleSubtreeReplacements: number
+  visibleSubtreeDropouts: string[]
+  visibleSubtrees: Map<string, Element>
+  subtreeKeys: WeakMap<Element, string>
+  maxOverlap: number
+  maxGap: number
+  maxPartTopMovement: number
+  previousPartTop: number
+  slowFrames: {
+    duration: number
+    index: number
+    phase: "stream" | "boundary" | "complete" | "unknown"
+    tokenSpans: number
+    blocks: number
+    codeBlocks: number
+    height: number
+    distance: number
+  }[]
+  scroll: {
+    calls: number
+    callNoops: number
+    sameFrameCalls: number
+    assignments: number
+    assignmentNoops: number
+    lastCallFrame: number
+    frame: number
+  }
+  row: HTMLElement
+  markdown: HTMLElement
+  running: boolean
+  previous: number
+  cleanup: () => void
+  start: () => void
+}
+
+export async function installTimelineStreamProbe(
+  page: Page,
+  options: { textPartID: string; finalIndex: number; profileVisual: boolean; minimal: boolean },
+) {
+  await page.evaluate(
+    ({ textPartID, finalIndex, profileVisual, minimal, markerPattern, fragmentCount }) => {
+      const part = document.querySelector<HTMLElement>(`[data-timeline-part-id="${textPartID}"]`)
+      const row = part?.closest<HTMLElement>("[data-timeline-row]")
+      const markdown = part?.querySelector<HTMLElement>('[data-component="markdown"]')
+      const root = part?.closest<HTMLElement>(".scroll-view__viewport")
+      if (!part || !row || !markdown || !root) throw new Error("missing streaming benchmark nodes")
+      const viewport = root.getBoundingClientRect()
+      const state: TimelineProbeState = {
+        started: 0,
+        ended: Infinity,
+        profileVisual,
+        minimal,
+        frames: [],
+        frameAt: [],
+        applied: [],
+        geometry: [],
+        blanks: 0,
+        longTasks: [],
+        layoutShifts: [],
+        visibleMounts: 0,
+        visibleUnmounts: 0,
+        visibleRows: new Set(
+          [...root.querySelectorAll("[data-timeline-key]")].filter((element) => {
+            const rect = element.getBoundingClientRect()
+            return rect.bottom > viewport.top && rect.top < viewport.bottom
+          }),
+        ),
+        visibleSubtreeMounts: [],
+        visibleSubtreeUnmounts: [],
+        visibleSubtreeReplacements: 0,
+        visibleSubtreeDropouts: [],
+        visibleSubtrees: new Map<string, Element>(),
+        subtreeKeys: new WeakMap<Element, string>(),
+        maxOverlap: 0,
+        maxGap: 0,
+        maxPartTopMovement: 0,
+        previousPartTop: part.getBoundingClientRect().top,
+        slowFrames: [],
+        scroll: {
+          calls: 0,
+          callNoops: 0,
+          sameFrameCalls: 0,
+          assignments: 0,
+          assignmentNoops: 0,
+          lastCallFrame: -1,
+          frame: 0,
+        },
+        row,
+        markdown,
+        running: false,
+        previous: 0,
+        cleanup: () => {},
+        start: () => {},
+      }
+      ;(window as Window & { __timelineStreamBenchmark?: TimelineProbeState }).__timelineStreamBenchmark = state
+      const scrollTo = Element.prototype.scrollTo
+      const scrollTop = Object.getOwnPropertyDescriptor(Element.prototype, "scrollTop")!
+      if (profileVisual) {
+        Element.prototype.scrollTo = function (...args) {
+          state.scroll.calls += 1
+          const top = typeof args[0] === "object" ? args[0]?.top : args[1]
+          if (typeof top === "number") {
+            const target = Math.min(top, this.scrollHeight - this.clientHeight)
+            if (Math.abs(this.scrollTop - target) < 1) state.scroll.callNoops += 1
+          }
+          if (state.scroll.lastCallFrame === state.scroll.frame) state.scroll.sameFrameCalls += 1
+          state.scroll.lastCallFrame = state.scroll.frame
+          return scrollTo.apply(this, args)
+        }
+        Object.defineProperty(Element.prototype, "scrollTop", {
+          configurable: true,
+          get: scrollTop.get,
+          set(value) {
+            state.scroll.assignments += 1
+            if (Math.abs(this.scrollTop - value) < 1) state.scroll.assignmentNoops += 1
+            scrollTop.set!.call(this, value)
+          },
+        })
+      }
+
+      const recordLongTasks = (entries: PerformanceEntry[]) => {
+        if (!state.running) return
+        state.longTasks.push(
+          ...entries
+            .filter((entry) => entry.startTime >= state.started && entry.startTime <= state.ended)
+            .map((entry) => entry.duration),
+        )
+      }
+      const longTaskObserver = new PerformanceObserver((list) => recordLongTasks(list.getEntries()))
+      longTaskObserver.observe({ type: "longtask" })
+      const recordLayoutShifts = (entries: PerformanceEntry[]) => {
+        if (!state.running) return
+        state.layoutShifts.push(
+          ...entries
+            .map((entry) => {
+              const shift = entry as LayoutShiftEntry
+              if (shift.startTime < state.started || shift.hadRecentInput) return
+              return shift.value
+            })
+            .filter((value): value is number => value !== undefined),
+        )
+      }
+      const layoutShiftObserver = profileVisual
+        ? new PerformanceObserver((list) => recordLayoutShifts(list.getEntries()))
+        : undefined
+      layoutShiftObserver?.observe({ type: "layout-shift", buffered: true })
+
+      const visible = (element: Element) => {
+        const rect = element.getBoundingClientRect()
+        const viewport = root.getBoundingClientRect()
+        const style = getComputedStyle(element)
+        return (
+          element.isConnected &&
+          rect.width > 0 &&
+          rect.height > 0 &&
+          rect.bottom > viewport.top &&
+          rect.top < viewport.bottom &&
+          style.display !== "none" &&
+          style.visibility !== "hidden" &&
+          Number(style.opacity) > 0
+        )
+      }
+      const critical = [
+        "[data-timeline-part-id]",
+        '[data-component="edit-content"]',
+        '[data-component="apply-patch-file-diff"]',
+        '[data-component="file"]',
+        '[data-component="markdown-code"]',
+        "[data-markdown-block]",
+      ].join(",")
+      const describe = (element: Element) => {
+        const cached = state.subtreeKeys.get(element)
+        if (!element.isConnected && cached) return cached
+        const part = element.closest<HTMLElement>("[data-timeline-part-id]")?.dataset.timelinePartId ?? "unknown"
+        const block = element
+          .closest<HTMLElement>("[data-markdown-key]")
+          ?.dataset.markdownKey?.replace(/:(?:code|full|live)$/, "")
+        const component =
+          element.getAttribute("data-component") ?? element.getAttribute("data-markdown-block") ?? element.tagName
+        const key = `${part}:${block ?? "root"}:${component}`
+        state.subtreeKeys.set(element, key)
+        return key
+      }
+      const recordMutations = (records: MutationRecord[]) => {
+        if (!state.running) return
+        records.forEach((record) => {
+          record.addedNodes.forEach((node) => {
+            if (node instanceof HTMLElement && node.matches("[data-timeline-key]") && visible(node)) {
+              state.visibleMounts += 1
+              state.visibleRows.add(node)
+            }
+            if (!(node instanceof Element)) return
+            const added = [node, ...node.querySelectorAll(critical)].filter((element) => element.matches(critical))
+            added.forEach((element) => {
+              if (visible(element)) state.visibleSubtreeMounts.push(describe(element))
+            })
+          })
+          record.removedNodes.forEach((node) => {
+            if (node instanceof HTMLElement && node.matches("[data-timeline-key]") && state.visibleRows.delete(node))
+              state.visibleUnmounts += 1
+            if (!(node instanceof Element)) return
+            const removed = [node, ...node.querySelectorAll(critical)].filter((element) => element.matches(critical))
+            removed.forEach((element) => {
+              const key = describe(element)
+              if (state.visibleSubtrees.get(key) === element) state.visibleSubtreeUnmounts.push(key)
+            })
+          })
+        })
+      }
+      const mutationObserver = profileVisual ? new MutationObserver(recordMutations) : undefined
+      mutationObserver?.observe(root, { childList: true, subtree: true })
+      const currentPart = () => root.querySelector<HTMLElement>(`[data-timeline-part-id="${textPartID}"]`)
+      const observeProgress = (at: number) => {
+        if (!state.running) return
+        const content = currentPart()?.textContent ?? ""
+        const index = content.includes("benchmark-complete")
+          ? finalIndex
+          : Number(content.match(new RegExp(markerPattern, "g"))?.at(-1)?.match(/\d+/)?.[0] ?? -1)
+        if (index >= 0 && index !== state.applied.at(-1)?.index) state.applied.push({ at, index })
+      }
+      const progressObserver = new MutationObserver(() => observeProgress(performance.now()))
+      progressObserver.observe(root, { characterData: true, childList: true, subtree: true })
+      state.cleanup = () => {
+        recordLongTasks(longTaskObserver.takeRecords())
+        recordLayoutShifts(layoutShiftObserver?.takeRecords() ?? [])
+        recordMutations(mutationObserver?.takeRecords() ?? [])
+        if (progressObserver.takeRecords().length) observeProgress(performance.now())
+        longTaskObserver.disconnect()
+        layoutShiftObserver?.disconnect()
+        mutationObserver?.disconnect()
+        progressObserver.disconnect()
+        if (!profileVisual) return
+        Element.prototype.scrollTo = scrollTo
+        Object.defineProperty(Element.prototype, "scrollTop", scrollTop)
+      }
+
+      const sample = (now: number) => {
+        if (!state.running) return
+        state.frameAt.push(now)
+        observeProgress(now)
+        if (minimal) {
+          state.frames.push(now - state.previous)
+          state.previous = now
+          requestAnimationFrame(sample)
+          return
+        }
+        setTimeout(() => {
+          if (!state.running) return
+          state.scroll.frame += 1
+          const duration = now - state.previous
+          state.frames.push(duration)
+          state.previous = now
+          const virtualRoot = root.querySelector<HTMLElement>("[data-timeline-virtual-content]")
+          const header = root.querySelector<HTMLElement>("[data-session-title]")
+          state.geometry.push({
+            scrollTop: root.scrollTop,
+            scrollHeight: root.scrollHeight,
+            clientHeight: root.clientHeight,
+            distance: root.scrollHeight - root.clientHeight - root.scrollTop,
+            virtualHeight: virtualRoot?.getBoundingClientRect().height ?? 0,
+            headerHeight: header?.getBoundingClientRect().height ?? 0,
+          })
+          const viewport = root.getBoundingClientRect()
+          if (profileVisual) {
+            const visibleRows = [...root.querySelectorAll<HTMLElement>("[data-timeline-key]")]
+              .map((element) => ({ element, rect: element.getBoundingClientRect() }))
+              .filter((item) => item.rect.bottom > viewport.top && item.rect.top < viewport.bottom)
+              .sort((a, b) => a.rect.top - b.rect.top)
+            state.visibleRows = new Set(visibleRows.map((item) => item.element))
+            const rows = visibleRows.map((item) => item.rect)
+            rows.slice(1).forEach((rect, index) => {
+              const previous = rows[index]!
+              state.maxOverlap = Math.max(state.maxOverlap, previous.bottom - rect.top)
+              state.maxGap = Math.max(state.maxGap, rect.top - previous.bottom)
+            })
+            const partTop = part.getBoundingClientRect().top
+            state.maxPartTopMovement = Math.max(state.maxPartTopMovement, Math.abs(partTop - state.previousPartTop))
+            state.previousPartTop = partTop
+          }
+          const visibleRow = [...root.querySelectorAll<HTMLElement>("[data-timeline-row]")].some((element) => {
+            const rect = element.getBoundingClientRect()
+            return rect.bottom > viewport.top && rect.top < viewport.bottom
+          })
+          if (!visibleRow) state.blanks += 1
+          if (profileVisual) {
+            const subtrees = new Map<string, { element: Element; rendered: boolean }>()
+            const visibleSubtrees = new Map<string, Element>()
+            root.querySelectorAll(critical).forEach((element) => {
+              const key = describe(element)
+              const rect = element.getBoundingClientRect()
+              const style = getComputedStyle(element)
+              const rendered =
+                element.isConnected &&
+                rect.width > 0 &&
+                rect.height > 0 &&
+                style.display !== "none" &&
+                style.visibility !== "hidden" &&
+                Number(style.opacity) > 0
+              subtrees.set(key, { element, rendered })
+              if (rendered && rect.bottom > viewport.top && rect.top < viewport.bottom) {
+                const previous = state.visibleSubtrees.get(key)
+                if (previous && previous !== element && key.startsWith(`${textPartID}:`))
+                  state.visibleSubtreeReplacements += 1
+                visibleSubtrees.set(key, element)
+              }
+            })
+            state.visibleSubtrees.forEach((element, key) => {
+              const current = subtrees.get(key)
+              if (key.startsWith(`${textPartID}:`) && !current?.rendered) {
+                const markdown = part.querySelector<HTMLElement>('[data-component="markdown"]')
+                state.visibleSubtreeDropouts.push(
+                  `${key}:projection=${markdown?.dataset.markdownProjectionLength}/${markdown?.dataset.markdownProjectionBlocks}:result=${markdown?.dataset.markdownResultLength}/${markdown?.dataset.markdownResultBlocks}:applied=${markdown?.dataset.markdownAppliedBlocks}:dom=${markdown?.children.length}`,
+                )
+              }
+              if (element.matches('[data-component="file"]')) {
+                const hadLines = element.hasAttribute("data-profiler-had-lines")
+                const hasLines = element.shadowRoot?.querySelector("[data-line]") != null
+                if (hasLines) element.setAttribute("data-profiler-had-lines", "")
+                if (hadLines && !hasLines) state.visibleSubtreeDropouts.push(`${key}:shadow-lines`)
+              }
+            })
+            state.visibleSubtrees = visibleSubtrees
+          }
+          if (profileVisual && duration > 33.34) {
+            const livePart = currentPart()
+            const content = livePart?.textContent ?? ""
+            const complete = content.includes("benchmark-complete")
+            const index = complete
+              ? finalIndex
+              : Number(content.match(new RegExp(markerPattern, "g"))?.at(-1)?.match(/\d+/)?.[0] ?? -1)
+            state.slowFrames.push({
+              duration,
+              index,
+              phase: complete
+                ? "complete"
+                : index >= 0 && index % fragmentCount === 0
+                  ? "boundary"
+                  : index >= 0
+                    ? "stream"
+                    : "unknown",
+              tokenSpans: livePart?.querySelectorAll(".shiki span").length ?? 0,
+              blocks: livePart?.querySelectorAll("[data-markdown-block]").length ?? 0,
+              codeBlocks: livePart?.querySelectorAll('[data-component="markdown-code"]').length ?? 0,
+              height: livePart?.getBoundingClientRect().height ?? 0,
+              distance: root.scrollHeight - root.clientHeight - root.scrollTop,
+            })
+          }
+          requestAnimationFrame(sample)
+        }, 0)
+      }
+      state.start = () => {
+        state.started = performance.now()
+        state.previous = state.started
+        state.running = true
+        requestAnimationFrame(sample)
+      }
+    },
+    { ...options, markerPattern: STREAM_MARKER_PATTERN, fragmentCount: STREAM_FRAGMENT_COUNT },
+  )
+}
+
+export function startTimelineStreamProbe(page: Page) {
+  return page.evaluate(() => {
+    const state = (window as Window & { __timelineStreamBenchmark?: TimelineProbeState }).__timelineStreamBenchmark
+    if (!state) throw new Error("missing streaming benchmark state")
+    state.start()
+  })
+}
+
+type LayoutShiftEntry = PerformanceEntry & { value: number; hadRecentInput?: boolean }
+
+export function layoutShiftValue(
+  entry: Pick<LayoutShiftEntry, "startTime" | "value" | "hadRecentInput">,
+  start: number,
+) {
+  if (entry.startTime < start || entry.hadRecentInput) return
+  return entry.value
+}
+
+export function removeVisibleRow<T>(visible: Set<T>, row: T) {
+  return visible.delete(row)
+}
+
+export function streamProgress(content: string) {
+  const index = Number(content.match(new RegExp(STREAM_MARKER_PATTERN, "g"))?.at(-1)?.match(/\d+/)?.[0] ?? -1)
+  return {
+    index,
+    phase: content.includes("benchmark-complete")
+      ? ("complete" as const)
+      : index >= 0 && index % STREAM_FRAGMENT_COUNT === 0
+        ? ("boundary" as const)
+        : index >= 0
+          ? ("stream" as const)
+          : ("unknown" as const),
+  }
+}
+
+export async function collectTimelineStreamMetrics(
+  page: Page,
+  options: { textPartID: string; finalIndex: number; navigations: string[] },
+) {
+  return page.evaluate(({ textPartID, finalIndex, navigations }) => {
+    const state = (window as Window & { __timelineStreamBenchmark?: TimelineProbeState }).__timelineStreamBenchmark
+    if (!state) throw new Error(`missing streaming benchmark state after navigation: ${JSON.stringify(navigations)}`)
+    state.ended = performance.now()
+    state.cleanup()
+    state.running = false
+    const part = document.querySelector<HTMLElement>(`[data-timeline-part-id="${textPartID}"]`)
+    const row = part?.closest<HTMLElement>("[data-timeline-row]")
+    const markdown = part?.querySelector<HTMLElement>('[data-component="markdown"]')
+    const sorted = state.frames.slice().sort((a, b) => a - b)
+    const duration = state.frames.reduce((sum, value) => sum + value, 0)
+    const longestSlowStreak = state.frames.reduce(
+      (result, value) => {
+        const current = value > 33.34 ? result.current + 1 : 0
+        return { current, longest: Math.max(result.longest, current) }
+      },
+      { current: 0, longest: 0 },
+    ).longest
+    const busyStart = state.applied.at(0)?.at
+    const completion = state.applied.find((value) => value.index === finalIndex)
+    const busyEnd = completion?.at
+    const busyFrames =
+      busyStart === undefined || busyEnd === undefined
+        ? []
+        : state.frames.filter((_, index) => state.frameAt[index]! >= busyStart && state.frameAt[index]! <= busyEnd)
+    const busySorted = busyFrames.slice().sort((a, b) => a - b)
+    const busyDuration = busyFrames.reduce((sum, value) => sum + value, 0)
+    const completionObservedMs = (completion?.at ?? NaN) - state.started
+    const visual = state.profileVisual
+      ? {
+          layoutShiftValueSum: state.layoutShifts.reduce((sum, value) => sum + value, 0),
+          maxLayoutShiftValue: Math.max(0, ...state.layoutShifts),
+          visibleMounts: state.visibleMounts,
+          visibleUnmounts: state.visibleUnmounts,
+          visibleSubtreeMounts: state.visibleSubtreeMounts,
+          visibleSubtreeUnmounts: [...new Set(state.visibleSubtreeUnmounts)],
+          visibleSubtreeReplacements: state.visibleSubtreeReplacements,
+          visibleSubtreeDropouts: [...new Set(state.visibleSubtreeDropouts)],
+          maxOverlapPx: state.maxOverlap,
+          maxGapPx: state.maxGap,
+          maxPartTopMovementPx: state.maxPartTopMovement,
+          slowestRafGaps: state.slowFrames
+            .sort((a, b) => b.duration - a.duration)
+            .slice(0, 20)
+            .map((frame) => ({
+              durationMs: frame.duration,
+              index: frame.index,
+              phase: frame.phase,
+              tokenSpans: frame.tokenSpans,
+              blocks: frame.blocks,
+              codeBlocks: frame.codeBlocks,
+              heightPx: frame.height,
+              distancePx: frame.distance,
+            })),
+          slowRafGapPhases: Object.fromEntries(
+            ["stream", "boundary", "complete", "unknown"].map((phase) => {
+              const frames = state.slowFrames.filter((frame) => frame.phase === phase)
+              return [
+                phase,
+                {
+                  count: frames.length,
+                  totalMs: frames.reduce((sum, frame) => sum + frame.duration, 0),
+                  maxMs: Math.max(0, ...frames.map((frame) => frame.duration)),
+                },
+              ]
+            }),
+          ),
+          scroll: state.scroll,
+        }
+      : null
+    const geometry = state.minimal
+      ? null
+      : {
+          maxDistancePx: Math.max(0, ...state.geometry.map((sample) => sample.distance)),
+          finalDistancePx: state.geometry.at(-1)?.distance ?? 0,
+          final: state.geometry.at(-1),
+          distanceTransitionsPx: state.geometry
+            .map((sample) => Math.round(sample.distance))
+            .filter((value, index, values) => index === 0 || value !== values[index - 1]),
+          bottomDriftTransitions: state.geometry.slice(1).filter((value, index) => {
+            const previous = state.geometry[index]?.distance ?? 0
+            return previous <= 1 && value.distance > 1
+          }).length,
+          blankSamples: state.blanks,
+        }
+    return {
+      capabilities: { visual: state.profileVisual, geometry: !state.minimal },
+      completionObservedMs,
+      deltasPerSecond: Number.isFinite(completionObservedMs) ? finalIndex / (completionObservedMs / 1_000) : null,
+      rafGapSamples: state.frames.length,
+      rafCallbackRate: duration ? (state.frames.length * 1000) / duration : 0,
+      observedProgressWindowRafCallbackRate: busyDuration ? (busyFrames.length * 1000) / busyDuration : null,
+      observedProgressWindowRafGapP95Ms: busySorted[Math.floor(busySorted.length * 0.95)] ?? null,
+      observedProgressWindowRafGaps: busyFrames.length,
+      maxObservedProgressIndex: Math.max(-1, ...state.applied.map((value) => value.index)),
+      observedProgressTransitions: state.applied.length,
+      rafGapP50Ms: sorted[Math.floor(sorted.length * 0.5)] ?? 0,
+      rafGapP95Ms: sorted[Math.floor(sorted.length * 0.95)] ?? 0,
+      rafGapP99Ms: sorted[Math.floor(sorted.length * 0.99)] ?? 0,
+      maxRafGapMs: sorted.at(-1) ?? 0,
+      rafGapsOver33Ms: state.frames.filter((value) => value > 33.34).length,
+      rafGapsOver50Ms: state.frames.filter((value) => value > 50).length,
+      missedFrameBudgetEquivalents: state.frames.reduce(
+        (sum, value) => sum + Math.max(0, Math.round(value / 16.67) - 1),
+        0,
+      ),
+      longestRafGapOver33MsStreak: longestSlowStreak,
+      longTaskCount: state.longTasks.length,
+      longTaskTimeMs: state.longTasks.reduce((sum, value) => sum + value, 0),
+      visual,
+      geometry,
+      rowReplaced: row !== state.row,
+      markdownReplaced: markdown !== state.markdown,
+      domTextCharacters: part?.textContent?.length ?? 0,
+    }
+  }, options)
+}

packages/app/e2e/performance/timeline/session-timeline-stress.fixture.ts

@@ -0,0 +1,369 @@
+const words = [
+  "alpha",
+  "bravo",
+  "charlie",
+  "delta",
+  "echo",
+  "foxtrot",
+  "golf",
+  "hotel",
+  "india",
+  "juliet",
+  "kilo",
+  "lima",
+  "metro",
+  "nova",
+  "orbit",
+  "pixel",
+  "quartz",
+  "river",
+  "signal",
+  "vector",
+]
+
+const sourceID = "ses_smoke_source"
+const targetID = "ses_smoke_target"
+const childID = "ses_smoke_child"
+const directory = "C:/OpenCode/SmokeProject"
+const projectID = "proj_smoke_timeline"
+const model = { providerID: "opencode", modelID: "claude-opus-4-6", variant: "max" }
+
+type MessageInfo = Record<string, unknown> & { id: string; role: "user" | "assistant" }
+type MessagePart = Record<string, unknown> & { id: string; type: string; text?: string; tool?: string }
+type Message = { info: MessageInfo; parts: MessagePart[] }
+
+function lorem(seed: number, length: number) {
+  let out = ""
+  let i = seed
+  while (out.length < length) {
+    const word = words[i % words.length]
+    out += (out ? " " : "") + word
+    if (i % 17 === 0) out += ".\n\n"
+    i += 7
+  }
+  return out.slice(0, length)
+}
+
+function id(prefix: string, value: number) {
+  return `${prefix}_smoke_${String(value).padStart(4, "0")}`
+}
+
+function userMessage(sessionID: string, index: number, textLength: number, diffs: unknown[] = []): Message {
+  const messageID = id("msg_user", index)
+  return {
+    info: {
+      id: messageID,
+      sessionID,
+      role: "user",
+      time: { created: 1700000000000 + index * 10_000 },
+      summary: { diffs },
+      agent: "build",
+      model,
+    },
+    parts: [
+      {
+        id: id("prt_user_text", index),
+        sessionID,
+        messageID,
+        type: "text",
+        text: lorem(index, textLength),
+      },
+    ],
+  }
+}
+
+function assistantMessage(sessionID: string, index: number, parentID: string, parts: MessagePart[]): Message {
+  const messageID = id("msg_assistant", index)
+  return {
+    info: {
+      id: messageID,
+      sessionID,
+      role: "assistant",
+      time: { created: 1700000000000 + index * 10_000 + 1_000, completed: 1700000000000 + index * 10_000 + 8_000 },
+      parentID,
+      modelID: model.modelID,
+      providerID: model.providerID,
+      mode: "build",
+      agent: "build",
+      path: { cwd: directory, root: directory },
+      cost: 0.01,
+      tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
+      variant: "max",
+      finish: "stop",
+    },
+    parts: parts.map((part) => ({
+      ...part,
+      sessionID,
+      messageID,
+    })),
+  }
+}
+
+function textPart(index: number, partIndex: number, length: number): MessagePart {
+  const prose = lorem(index * 13 + partIndex, length)
+  const text =
+    index % 12 === 0
+      ? `${prose}\n\n\`\`\`ts\n${code(index, 80)}\n\`\`\``
+      : index % 5 === 0
+        ? `${prose}\n\n\`\`\`ts\nexport const value = "${lorem(index, 220)}"\n\`\`\``
+        : index % 7 === 0
+          ? `${prose}\n\nThe wrapped inline value is \`${lorem(index, 180)}\`.`
+          : prose
+  return { id: id(`prt_text_${partIndex}`, index), type: "text", text }
+}
+
+function reasoningPart(index: number, partIndex: number, length: number): MessagePart {
+  return {
+    id: id(`prt_reasoning_${partIndex}`, index),
+    type: "reasoning",
+    text: lorem(index * 19 + partIndex, length),
+    time: { start: 1700000000000 + index * 10_000, end: 1700000000000 + index * 10_000 + 500 },
+  }
+}
+
+function toolPart(
+  index: number,
+  partIndex: number,
+  tool: string,
+  input: Record<string, unknown>,
+  outputLength = 160,
+  metadataOverride?: Record<string, unknown>,
+): MessagePart {
+  const metadata =
+    metadataOverride ??
+    (tool === "apply_patch"
+      ? { files: [patchFile(index, "update"), patchFile(index + 1, index % 2 === 0 ? "add" : "delete")] }
+      : tool === "edit" || tool === "write"
+        ? {
+            filediff: fileDiff(String(input.filePath ?? `src/generated/file-${index}.ts`), index),
+            diff: patch(index, outputLength),
+            preview: patch(index + 1, 420),
+          }
+        : tool === "question"
+          ? { answers: [["Proceed"], ["Keep sample output"]] }
+          : {})
+  return {
+    id: id(`prt_tool_${tool}_${partIndex}`, index),
+    type: "tool",
+    callID: id("call", index * 10 + partIndex),
+    tool,
+    state: {
+      status: "completed",
+      input,
+      output: lorem(index * 23 + partIndex, outputLength),
+      title: tool === "bash" ? "Verify generated output" : input.filePath || input.path || input.pattern || "completed",
+      metadata,
+      time: { start: 1700000000000 + index * 10_000, end: 1700000000000 + index * 10_000 + 400 },
+    },
+  }
+}
+
+function patchFile(seed: number, type: "add" | "update" | "delete") {
+  return {
+    filePath: `src/generated/patch-${seed}.ts`,
+    relativePath: `src/generated/patch-${seed}.ts`,
+    type,
+    additions: (seed % 7) + 1,
+    deletions: type === "add" ? 0 : seed % 4,
+    patch: patch(seed, 520),
+    before: type === "add" ? undefined : code(seed, 18),
+    after: type === "delete" ? undefined : code(seed + 1, 24),
+  }
+}
+
+function fileDiff(file: string, seed: number) {
+  const lines = seed % 12 === 0 ? 300 : seed % 8 === 0 ? 2 : 38
+  const before = code(seed, lines, seed % 10 === 0 ? 280 : 32)
+  const after =
+    lines === 2
+      ? before.replace("value1", "updatedValue1")
+      : lines === 300
+        ? code(seed + 1, lines, seed % 10 === 0 ? 280 : 32)
+        : before.replace("value4", "updatedValue4").replace("value20", "updatedValue20")
+  return {
+    file,
+    additions: lines === 300 ? 300 : lines === 2 ? 1 : 2,
+    deletions: lines === 300 ? 300 : lines === 2 ? 1 : 2,
+    before,
+    after,
+  }
+}
+
+function patch(seed: number, length: number) {
+  return `diff --git a/src/generated/file-${seed}.ts b/src/generated/file-${seed}.ts\n+${lorem(seed, length).replace(/\n/g, "\n+")}`
+}
+
+function code(seed: number, lines: number, width = 32) {
+  return Array.from(
+    { length: lines },
+    (_, index) => `export const value${index} = "${lorem(seed + index, width)}"`,
+  ).join("\n")
+}
+
+function turn(index: number): Message[] {
+  const diff = index % 9 === 0 ? [fileDiff(`src/generated/summary-${index}.ts`, index)] : []
+  const user = userMessage(targetID, index, 100 + (index % 4) * 80, diff)
+  const parts = [
+    ...(index % 5 === 0 ? [reasoningPart(index, 0, 420)] : []),
+    ...(index % 3 === 0
+      ? [
+          toolPart(index, 0, "read", { filePath: `src/generated/file-${index}.ts`, offset: 0, limit: 80 }, 220),
+          toolPart(index, 5, "glob", { path: directory, pattern: `**/*sample-${index}*.ts` }, 140),
+          toolPart(index, 1, "grep", { path: directory, pattern: `sample-${index}`, include: "*.ts" }, 180),
+          toolPart(index, 6, "list", { path: `src/generated/${index}` }, 120),
+        ]
+      : []),
+    textPart(index, 2, 160 + (index % 6) * 90),
+    ...(index % 4 === 0 ? [toolPart(index, 3, "edit", { filePath: `src/generated/file-${index}.ts` }, 700)] : []),
+    ...(index % 6 === 0
+      ? [toolPart(index, 7, "write", { filePath: `src/generated/write-${index}.ts`, content: code(index, 28) }, 560)]
+      : []),
+    ...(index % 8 === 0
+      ? [toolPart(index, 8, "apply_patch", { files: [`src/generated/patch-${index}.ts`] }, 620)]
+      : []),
+    ...(index % 7 === 0
+      ? [toolPart(index, 4, "bash", { command: "bun typecheck", description: "Verify generated output" }, 620)]
+      : []),
+    ...(index % 10 === 0 ? [toolPart(index, 9, "webfetch", { url: "https://example.com/docs/sample" }, 120)] : []),
+    ...(index % 11 === 0 ? [toolPart(index, 10, "websearch", { query: "sample movement notes" }, 240)] : []),
+    ...(index % 13 === 0
+      ? [
+          toolPart(
+            index,
+            11,
+            "question",
+            { questions: [{ question: "Use generated fixture?" }, { question: "Keep same row shape?" }] },
+            120,
+          ),
+        ]
+      : []),
+    ...(index % 17 === 0
+      ? [toolPart(index, 12, "task", { description: "Inspect generated fixture", subagent_type: "explore" }, 160)]
+      : []),
+  ]
+  return [user, assistantMessage(targetID, index, user.info.id, parts)]
+}
+
+const targetMessages = Array.from({ length: 72 }, (_, index) => turn(index)).flat()
+const sourceMessages = Array.from({ length: 12 }, (_, index) => [
+  userMessage(sourceID, index + 1000, 120),
+  assistantMessage(sourceID, index + 1000, id("msg_user", index + 1000), [
+    textPart(index + 1000, 0, 240),
+    ...(index === 11
+      ? [
+          toolPart(
+            index + 1000,
+            1,
+            "task",
+            { description: "Inspect child navigation", subagent_type: "explore" },
+            160,
+            { sessionId: childID },
+          ),
+        ]
+      : []),
+  ]),
+]).flat()
+const childMessages = Array.from({ length: 4 }, (_, index) => [
+  userMessage(childID, index + 2000, 120),
+  assistantMessage(childID, index + 2000, id("msg_user", index + 2000), [textPart(index + 2000, 0, 240)]),
+]).flat()
+
+function renderable(part: MessagePart) {
+  if (part.type === "tool" && part.tool === "todowrite") return false
+  if (part.type === "text") return !!part.text.trim()
+  if (part.type === "reasoning") return !!part.text.trim()
+  return part.type !== "step-start" && part.type !== "step-finish" && part.type !== "patch"
+}
+
+function orderedParts(message: Message) {
+  return message.parts.slice().sort((a, b) => a.id.localeCompare(b.id))
+}
+
+export const fixture = {
+  directory,
+  project: {
+    id: projectID,
+    worktree: directory,
+    vcs: "git",
+    name: "smoke-project",
+    time: { created: 1700000000000, updated: 1700000000000 },
+    sandboxes: [],
+  },
+  provider: {
+    all: [
+      {
+        id: "opencode",
+        name: "OpenCode",
+        models: { "claude-opus-4-6": { id: "claude-opus-4-6", name: "Claude Opus 4.6", limit: { context: 200_000 } } },
+      },
+    ],
+    connected: ["opencode"],
+    default: { providerID: "opencode", modelID: "claude-opus-4-6" },
+  },
+  sessions: [
+    {
+      id: sourceID,
+      slug: "source",
+      projectID,
+      directory,
+      title: "Uncommitted changes inquiry",
+      version: "dev",
+      time: { created: 1700000000000, updated: 1700000000000 },
+    },
+    {
+      id: targetID,
+      slug: "target",
+      projectID,
+      directory,
+      title: "Example Game: sample jump movement & sample physics analysis",
+      version: "dev",
+      time: { created: 1700000001000, updated: 1700000001000 },
+    },
+    {
+      id: childID,
+      parentID: sourceID,
+      slug: "child",
+      projectID,
+      directory,
+      title: "Inspect child navigation",
+      version: "dev",
+      time: { created: 1700000002000, updated: 1700000002000 },
+    },
+  ],
+  sourceID,
+  targetID,
+  childID,
+  messages: { [sourceID]: sourceMessages, [targetID]: targetMessages, [childID]: childMessages },
+  expected: {
+    sourceTitle: "Uncommitted changes inquiry",
+    targetTitle: "Example Game: sample jump movement & sample physics analysis",
+    childTitle: "Inspect child navigation",
+    sourceMessageIDs: sourceMessages
+      .filter((message) => message.info.role === "user")
+      .map((message) => message.info.id),
+    targetMessageIDs: targetMessages
+      .filter((message) => message.info.role === "user")
+      .map((message) => message.info.id),
+    childMessageIDs: childMessages.filter((message) => message.info.role === "user").map((message) => message.info.id),
+    targetPartIDs: targetMessages.flatMap((message) =>
+      orderedParts(message)
+        .filter(renderable)
+        .map((part) => part.id),
+    ),
+  },
+}
+
+export function pageMessages(sessionID: string, limit: number, before?: string) {
+  const messages = fixture.messages[sessionID as keyof typeof fixture.messages] ?? []
+  const end = before
+    ? Math.max(
+        0,
+        messages.findIndex((message) => message.info.id === before),
+      )
+    : messages.length
+  const start = Math.max(0, end - limit)
+  return {
+    items: messages.slice(start, end),
+    cursor: start > 0 ? messages[start]!.info.id : undefined,
+  }
+}

packages/app/e2e/performance/timeline/timeline-test-helpers.ts

@@ -0,0 +1,80 @@
+import type { Page } from "@playwright/test"
+import { base64Encode } from "@opencode-ai/core/util/encode"
+import { mockOpenCodeServer } from "../../utils/mock-server"
+import { fixture, pageMessages } from "./session-timeline-stress.fixture"
+
+export async function installTimelineSettings(page: Page) {
+  await page.addInitScript(() => {
+    localStorage.setItem(
+      "settings.v3",
+      JSON.stringify({
+        general: {
+          newLayoutDesigns: true,
+          editToolPartsExpanded: true,
+          shellToolPartsExpanded: true,
+          showReasoningSummaries: true,
+        },
+      }),
+    )
+  })
+}
+
+export function mockStressTimeline(
+  page: Page,
+  input?: { onMessages?: (input: { sessionID: string; before?: string; phase: "start" | "end" }) => void },
+) {
+  return mockOpenCodeServer(page, {
+    sessions: fixture.sessions,
+    provider: fixture.provider,
+    directory: fixture.directory,
+    project: fixture.project,
+    pageMessages,
+    onMessages: input?.onMessages,
+  })
+}
+
+export async function installStressSessionTabs(page: Page, input?: { draftID?: string; sessionIDs?: string[] }) {
+  const server = stressServer()
+  await page.addInitScript(
+    ({ directory, sessionIDs, dirBase64, server, draftID }) => {
+      localStorage.setItem(
+        "opencode.global.dat:server",
+        JSON.stringify({
+          projects: { local: [{ worktree: directory, expanded: true }] },
+          lastProject: { local: directory },
+        }),
+      )
+      localStorage.setItem(
+        "opencode.global.dat:tabs",
+        JSON.stringify([
+          ...sessionIDs.map((sessionId) => ({
+            type: "session",
+            server,
+            dirBase64,
+            sessionId,
+          })),
+          ...(draftID ? [{ type: "draft", draftID, server, directory }] : []),
+        ]),
+      )
+    },
+    {
+      directory: fixture.directory,
+      sessionIDs: input?.sessionIDs ?? [fixture.sourceID, fixture.targetID],
+      dirBase64: base64Encode(fixture.directory),
+      server,
+      draftID: input?.draftID,
+    },
+  )
+}
+
+export function stressSessionHref(sessionID: string) {
+  return `/server/${base64Encode(stressServer())}/session/${sessionID}`
+}
+
+export function stressDraftHref(draftID: string) {
+  return `/new-session?draftId=${encodeURIComponent(draftID)}`
+}
+
+function stressServer() {
+  return `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+}

packages/app/e2e/performance/unit/chrome-trace-write.test.ts

@@ -0,0 +1,15 @@
+import { expect, test } from "bun:test"
+import { mkdtemp, rm } from "node:fs/promises"
+import path from "node:path"
+import os from "node:os"
+import { prepareChromeTrace } from "../chrome-trace"
+
+test("creates the configured trace directory", async () => {
+  const root = await mkdtemp(path.join(os.tmpdir(), "opencode-trace-"))
+  try {
+    const file = await prepareChromeTrace(path.join(root, "nested", "traces"), "session/tab", false, "test")
+    expect(file).toEndWith("-session-tab-458ed9e3-test.json")
+  } finally {
+    await rm(root, { recursive: true, force: true })
+  }
+})

packages/app/e2e/performance/unit/first-navigation-metrics.test.ts

@@ -0,0 +1,32 @@
+import { expect, test } from "bun:test"
+import { summarizeFirstNavigation } from "../timeline/first-navigation-metrics"
+
+test("reports blank frames before first destination and stable paint", () => {
+  expect(
+    summarizeFirstNavigation([
+      { observedAtMs: 16, source: true, destination: false, content: true },
+      { observedAtMs: 32, source: false, destination: false, content: false },
+      { observedAtMs: 48, source: false, destination: true, content: true },
+      { observedAtMs: 64, source: false, destination: true, content: true },
+      { observedAtMs: 80, source: false, destination: true, content: true },
+    ]),
+  ).toEqual({
+    samples: 5,
+    firstDestinationObservedMs: 48,
+    stableDestinationObservedMs: 80,
+    sourceSamples: 1,
+    blankSamples: 1,
+    unknownSamples: 0,
+    destinationSamples: 3,
+  })
+})
+
+test("does not report stability for interrupted destination frames", () => {
+  expect(
+    summarizeFirstNavigation([
+      { observedAtMs: 16, source: false, destination: true, content: true },
+      { observedAtMs: 32, source: false, destination: false, content: true },
+      { observedAtMs: 48, source: false, destination: true, content: true },
+    ]).stableDestinationObservedMs,
+  ).toBeNull()
+})

packages/app/e2e/performance/unit/navigation-milestones.test.ts

@@ -0,0 +1,34 @@
+import { expect, test } from "bun:test"
+import { summarizeNavigationMilestones } from "../timeline/navigation-milestones"
+
+test("reports first and stable paint for each navigation milestone", () => {
+  expect(
+    summarizeNavigationMilestones([
+      { observedAtMs: 16, milestones: { content: false, tab: false } },
+      { observedAtMs: 32, milestones: { content: true, tab: false } },
+      { observedAtMs: 48, milestones: { content: true, tab: true } },
+      { observedAtMs: 64, milestones: { content: true, tab: true } },
+      { observedAtMs: 80, milestones: { content: true, tab: true } },
+    ]),
+  ).toEqual({
+    samples: 5,
+    milestones: {
+      content: { firstObservedMs: 32, stableObservedMs: 64 },
+      tab: { firstObservedMs: 48, stableObservedMs: 80 },
+    },
+    all: { firstObservedMs: 48, stableObservedMs: 80 },
+  })
+})
+
+test("reports missing stability when a milestone appears in the final samples", () => {
+  expect(
+    summarizeNavigationMilestones([
+      { observedAtMs: 16, milestones: { content: false } },
+      { observedAtMs: 32, milestones: { content: true } },
+    ]),
+  ).toEqual({
+    samples: 2,
+    milestones: { content: { firstObservedMs: 32, stableObservedMs: null } },
+    all: { firstObservedMs: 32, stableObservedMs: null },
+  })
+})

packages/app/e2e/performance/unit/session-tab-repaint-probe.test.ts

@@ -0,0 +1,42 @@
+import { expect, test } from "bun:test"
+import { compressCachedRepaintTrace, layoutShiftSample } from "../timeline/session-tab-repaint-probe"
+
+test("compresses repeated repaint states without losing frame samples", () => {
+  const state = {
+    root: 1,
+    scrollTop: 10,
+    scrollHeight: 20,
+    bottomErrorPx: 0,
+    last: true,
+    rows: [{ key: "row", node: 2, top: 0, bottom: 10 }],
+    mounted: 1,
+    center: "content",
+  }
+  const trace = {
+    timeOriginEpochMs: 1_000,
+    startedAtPerformanceMs: 100,
+    samples: [
+      { observedAtMs: 16, ...state, destination: ["target"], source: [] },
+      { observedAtMs: 32, ...state, destination: ["target"], source: [] },
+      { observedAtMs: 48, ...state, scrollTop: 11, destination: ["target"], source: [] },
+    ],
+    mutations: [{ observedAtMs: 20, changed: [{ type: "add", node: 2 }] }],
+    shifts: [{ occurredAtMs: 24, value: 0.1 }],
+    windowMs: 1_000,
+    running: false,
+    stop() {},
+  }
+  const compressed = compressCachedRepaintTrace(trace)
+  const samples = compressed.samples.flatMap((group) =>
+    group.observedAtMs.map((observedAtMs) => ({ observedAtMs, ...group.state })),
+  )
+
+  expect(samples).toEqual(trace.samples)
+  expect(compressed.mutations).toEqual(trace.mutations)
+  expect(compressed.shifts).toEqual(trace.shifts)
+})
+
+test("records layout shifts at occurrence time within the probe window", () => {
+  expect(layoutShiftSample({ startTime: 99, value: 0.1 }, 100)).toBeUndefined()
+  expect(layoutShiftSample({ startTime: 124, value: 0.2 }, 100)).toEqual({ occurredAtMs: 24, value: 0.2 })
+})

packages/app/e2e/performance/unit/session-tab-switch-metrics.test.ts

@@ -0,0 +1,54 @@
+import { expect, test } from "bun:test"
+import { classifySessionSwitch } from "../timeline/session-tab-switch-metrics"
+
+test("counts source and blank samples before the destination is observed", () => {
+  const result = classifySessionSwitch([
+    { observedAtMs: 16, destination: [], source: ["source"], hasVisibleRows: true, last: false },
+    { observedAtMs: 32, destination: [], source: [], hasVisibleRows: false, last: false },
+    { observedAtMs: 48, destination: ["destination"], source: [], hasVisibleRows: true, last: true, bottomErrorPx: 0 },
+    { observedAtMs: 64, destination: ["destination"], source: [], hasVisibleRows: true, last: true, bottomErrorPx: 0 },
+    { observedAtMs: 80, destination: ["destination"], source: [], hasVisibleRows: true, last: true, bottomErrorPx: 0 },
+  ])
+
+  expect(result.blankSamples).toBe(1)
+  expect(result.sourceSamples).toBe(1)
+  expect(result.unknownSamples).toBe(0)
+  expect(result.firstDestinationObservedMs).toBe(48)
+  expect(result.stableObservedMs).toBe(80)
+})
+
+test("does not classify mixed source and destination content as correct", () => {
+  const result = classifySessionSwitch([
+    {
+      observedAtMs: 16,
+      destination: ["destination"],
+      source: ["source"],
+      hasVisibleRows: true,
+      last: true,
+      bottomErrorPx: 0,
+    },
+    { observedAtMs: 32, destination: ["destination"], source: [], hasVisibleRows: true, last: true, bottomErrorPx: 0 },
+    { observedAtMs: 48, destination: ["destination"], source: [], hasVisibleRows: true, last: true, bottomErrorPx: 0 },
+    { observedAtMs: 64, destination: ["destination"], source: [], hasVisibleRows: true, last: true, bottomErrorPx: 0 },
+  ])
+
+  expect(result.firstCorrectObservedMs).toBe(32)
+  expect(result.stableObservedMs).toBe(64)
+})
+
+test("reports missing correctness without throwing", () => {
+  const result = classifySessionSwitch([
+    {
+      observedAtMs: 16,
+      destination: ["destination"],
+      source: ["source"],
+      hasVisibleRows: true,
+      last: true,
+      bottomErrorPx: 0,
+    },
+  ])
+
+  expect(result.firstDestinationObservedMs).toBe(16)
+  expect(result.firstCorrectObservedMs).toBeNull()
+  expect(result.stableObservedMs).toBeNull()
+})

packages/app/e2e/performance/unit/session-timeline-stream-probe.test.ts

@@ -0,0 +1,14 @@
+import { expect, test } from "bun:test"
+import { streamChunk } from "../timeline/session-timeline-benchmark.fixture"
+import { streamProgress } from "../timeline/session-timeline-stream-probe"
+
+test("classifies emitted stream markers using the fixture cycle", () => {
+  expect(streamProgress("before stream-17 after stream-18")).toEqual({ index: 18, phase: "boundary" })
+  expect(streamProgress("before stream-18 after stream-19")).toEqual({ index: 19, phase: "stream" })
+  expect(streamProgress("benchmark-complete stream-36")).toEqual({ index: 36, phase: "complete" })
+  expect(streamProgress("no marker")).toEqual({ index: -1, phase: "unknown" })
+})
+
+test("emits progress markers at fixture boundaries", () => {
+  expect(streamProgress(streamChunk(18, 160))).toEqual({ index: 18, phase: "boundary" })
+})

packages/app/e2e/performance/unit/session-timeline-visual-tracking.test.ts

@@ -0,0 +1,16 @@
+import { expect, test } from "bun:test"
+import { layoutShiftValue, removeVisibleRow } from "../timeline/session-timeline-stream-probe"
+
+test("excludes layout shifts before the probe window and recent input", () => {
+  expect(layoutShiftValue({ startTime: 9, value: 0.1 }, 10)).toBeUndefined()
+  expect(layoutShiftValue({ startTime: 10, value: 0.2, hadRecentInput: true }, 10)).toBeUndefined()
+  expect(layoutShiftValue({ startTime: 11, value: 0.3 }, 10)).toBe(0.3)
+})
+
+test("classifies removed rows from their last painted visibility", () => {
+  const row = {}
+  const visible = new Set([row])
+
+  expect(removeVisibleRow(visible, row)).toBe(true)
+  expect(removeVisibleRow(visible, row)).toBe(false)
+})

packages/app/e2e/performance/unit/timeline-test-helpers.test.ts

@@ -0,0 +1,10 @@
+import { expect, test } from "bun:test"
+import { base64Encode } from "@opencode-ai/core/util/encode"
+import { fixture } from "../timeline/session-timeline-stress.fixture"
+import { stressSessionHref } from "../timeline/timeline-test-helpers"
+
+test("builds stress session links for the benchmark server", () => {
+  expect(stressSessionHref(fixture.sourceID)).toBe(
+    `/server/${base64Encode("http://127.0.0.1:4096")}/session/${fixture.sourceID}`,
+  )
+})

packages/app/e2e/regression/cross-server-tab-close.spec.ts

@@ -0,0 +1,135 @@
+import { expect, test, type Page, type Route } from "@playwright/test"
+import { base64Encode } from "@opencode-ai/core/util/encode"
+
+const serverA = "http://127.0.0.1:4096"
+const serverB = "http://127.0.0.1:4097"
+const sessionA = session("ses_server_a", "C:/server-a", "Server A session")
+const sessionB = session("ses_server_b", "/home/server-b", "Server B session")
+
+test("closing the active server's last tab opens the remaining server tab", async ({ page }) => {
+  const requests: string[] = []
+  await mockServers(page, requests)
+  await page.addInitScript(
+    ({ serverB, sessionA, sessionB }) => {
+      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
+      localStorage.setItem("opencode.global.dat:server", JSON.stringify({ list: [serverB] }))
+      localStorage.setItem(
+        "opencode.global.dat:tabs",
+        JSON.stringify([
+          { type: "session", server: "http://127.0.0.1:4096", sessionId: sessionA },
+          { type: "session", server: serverB, sessionId: sessionB },
+        ]),
+      )
+    },
+    { serverB, sessionA: sessionA.id, sessionB: sessionB.id },
+  )
+
+  const hrefA = `/server/${base64Encode(serverA)}/session/${sessionA.id}`
+  const hrefB = `/server/${base64Encode(serverB)}/session/${sessionB.id}`
+  await page.goto(hrefA)
+  await expect(page.getByText(sessionA.title).first()).toBeVisible()
+
+  const tabA = page.locator(`[data-titlebar-tab-slot]:has(a[href="${hrefA}"])`)
+  await tabA.locator('[data-slot="tab-close"] button').click()
+
+  await expect(page).toHaveURL(new RegExp(`${hrefB.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")}$`))
+  await expect.poll(() => requests.some((url) => url.startsWith(`${serverB}/session/${sessionB.id}`))).toBe(true)
+  await expect(page.getByText(sessionB.title).first()).toBeVisible()
+  const sessionBRequests = requests.filter((url) => url.includes(`/session/${sessionB.id}`))
+  expect(sessionBRequests.every((url) => url.startsWith(serverB))).toBe(true)
+  expect(
+    requests.some((request) => {
+      const url = new URL(request)
+      return url.origin === serverB && url.searchParams.get("directory") === sessionB.directory
+    }),
+  ).toBe(true)
+})
+
+test("legacy session routes preserve an existing tab's server", async ({ page }) => {
+  await mockServers(page, [])
+  await page.addInitScript(
+    ({ serverB, sessionB }) => {
+      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
+      localStorage.setItem("opencode.global.dat:server", JSON.stringify({ list: [serverB] }))
+      localStorage.setItem(
+        "opencode.global.dat:tabs",
+        JSON.stringify([{ type: "session", server: serverB, sessionId: sessionB }]),
+      )
+    },
+    { serverB, sessionB: sessionB.id },
+  )
+
+  const hrefB = `/server/${base64Encode(serverB)}/session/${sessionB.id}`
+  await page.goto(`/${base64Encode(sessionB.directory)}/session/${sessionB.id}`)
+  await expect(page).toHaveURL(new RegExp(`${hrefB.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")}$`))
+})
+
+function session(id: string, directory: string, title: string) {
+  return {
+    id,
+    slug: id,
+    projectID: `project-${id}`,
+    directory,
+    title,
+    version: "dev",
+    time: { created: 1, updated: 1 },
+  }
+}
+
+async function mockServers(page: Page, requests: string[]) {
+  await page.route("**/*", async (route) => {
+    const url = new URL(route.request().url())
+    if (url.origin !== serverA && url.origin !== serverB) return route.fallback()
+    requests.push(url.toString())
+    const current = url.origin === serverA ? sessionA : sessionB
+    const directory = url.searchParams.get("directory")
+    if (directory && directory !== current.directory) return json(route, { name: "InvalidDirectory" }, 500)
+    if (url.pathname === "/global/event" || url.pathname === "/event") return sse(route)
+    if (url.pathname === "/global/health") return json(route, { healthy: true })
+    if (url.pathname === "/session") return json(route, [current])
+    if (url.pathname === `/session/${current.id}`) return json(route, current)
+    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
+    if (url.pathname === `/session/${current.id}/message`) return json(route, [])
+    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
+    if (["/skill", "/command", "/lsp", "/formatter", "/permission", "/question", "/vcs/diff"].includes(url.pathname))
+      return json(route, [])
+    if (["/global/config", "/config", "/provider/auth", "/mcp", "/session/status"].includes(url.pathname))
+      return json(route, {})
+    if (url.pathname === "/provider")
+      return json(route, { all: [], connected: [], default: { providerID: "", modelID: "" } })
+    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
+    if (url.pathname === "/project" || url.pathname === "/project/current") {
+      const project = {
+        id: current.projectID,
+        worktree: current.directory,
+        vcs: "git",
+        time: { created: 1, updated: 1 },
+        sandboxes: [],
+      }
+      return json(route, url.pathname === "/project" ? [project] : project)
+    }
+    if (url.pathname === "/path")
+      return json(route, {
+        state: current.directory,
+        config: current.directory,
+        worktree: current.directory,
+        directory: current.directory,
+        home: current.directory,
+      })
+    if (url.pathname === "/vcs") return json(route, { branch: "main", default_branch: "main" })
+    return json(route, {})
+  })
+}
+
+function json(route: Route, body: unknown, status = 200) {
+  return route.fulfill({
+    status,
+    contentType: "application/json",
+    headers: { "access-control-allow-origin": "*" },
+    body: JSON.stringify(body),
+  })
+}
+
+function sse(route: Route) {
+  return route.fulfill({ status: 200, contentType: "text/event-stream", body: ": ok\n\n" })
+}

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

@@ -0,0 +1,157 @@
+import { expect, test, type Page } from "@playwright/test"
+import { base64Encode } from "@opencode-ai/core/util/encode"
+import { mockOpenCodeServer } from "../utils/mock-server"
+import { expectAppVisible, expectSessionTitle } from "../utils/waits"
+
+const directory = "C:/OpenCode/ReviewLineCommentRegression"
+const sessionID = "ses_review_line_comment_regression"
+const title = "Review line comment regression"
+
+test.beforeEach(async ({ page }) => {
+  await openReview(page)
+})
+
+test("opens the comment editor when code is clicked", async ({ page }) => {
+  const review = page.locator('[data-component="session-review"]')
+  const line = review.getByText("export const value = 'after'", { exact: true })
+  await expectAppVisible(line)
+  await line.click()
+
+  await expect(review.getByRole("textbox")).toBeVisible()
+})
+
+test("opens the comment editor when a line number is clicked", async ({ page }) => {
+  const review = page.locator('[data-component="session-review"]')
+  const lineNumber = review.locator('[data-column-number="1"]').last()
+  await expectAppVisible(lineNumber)
+  await lineNumber.click()
+
+  await expect(review.getByRole("textbox")).toBeVisible()
+})
+
+test("opens the comment editor for a line number range", async ({ page }) => {
+  const review = page.locator('[data-component="session-review"]')
+  const start = review.locator('[data-column-number="1"]').last()
+  const end = review.locator('[data-column-number="3"]').last()
+  await expectAppVisible(start)
+  await expectAppVisible(end)
+
+  const from = await start.boundingBox()
+  const to = await end.boundingBox()
+  if (!from || !to) throw new Error("Missing line number bounds")
+  await page.mouse.move(from.x + from.width / 2, from.y + from.height / 2)
+  await page.mouse.down()
+  await page.mouse.move(to.x + to.width / 2, to.y + to.height / 2)
+  await page.mouse.up()
+
+  await expect(review.getByRole("textbox")).toBeVisible()
+})
+
+test("shows a comment button when a line number is hovered", async ({ page }) => {
+  const review = page.locator('[data-component="session-review"]')
+  const lineNumber = review.locator('[data-column-number="1"]').last()
+  await expectAppVisible(lineNumber)
+
+  const comment = review.getByRole("button", { name: "Comment", exact: true })
+  await expect(async () => {
+    await page.mouse.move(0, 0)
+    await lineNumber.hover()
+    await expect(comment).toBeVisible({ timeout: 500 })
+    await comment.click({ timeout: 500 })
+  }).toPass()
+  await expect(review.getByRole("textbox")).toBeVisible()
+})
+
+test("stages a submitted line comment in the prompt context", async ({ page }) => {
+  const requests: string[] = []
+  page.on("request", (request) => {
+    if (request.method() !== "GET") requests.push(`${request.method()} ${new URL(request.url()).pathname}`)
+  })
+
+  const review = page.locator('[data-component="session-review"]')
+  await review.getByText("export const value = 'after'", { exact: true }).click()
+  await review.getByRole("textbox").fill("Use the existing value instead")
+  await review.locator('[data-slot="line-comment-action"][data-variant="primary"]').click()
+
+  await expect(review.getByText("Use the existing value instead", { exact: true })).toBeVisible()
+  await page.getByRole("tab", { name: "Session" }).click()
+  const context = page.getByText("Use the existing value instead", { exact: true }).last()
+  await expect(context).toBeVisible()
+  await expect(context.locator("..")).toContainText("review.ts:2")
+  expect(requests).toEqual([])
+})
+
+async function openReview(page: Page) {
+  await page.setViewportSize({ width: 700, height: 900 })
+  await mockOpenCodeServer(page, {
+    directory,
+    project: {
+      id: "proj_review_line_comment_regression",
+      worktree: directory,
+      vcs: "git",
+      name: "review-line-comment-regression",
+      time: { created: 1700000000000, updated: 1700000000000 },
+      sandboxes: [],
+    },
+    provider: { all: [], connected: [], default: {} },
+    sessions: [
+      {
+        id: sessionID,
+        slug: "review-line-comment-regression",
+        projectID: "proj_review_line_comment_regression",
+        directory,
+        title,
+        version: "dev",
+        time: { created: 1700000000000, updated: 1700000000000 },
+      },
+    ],
+    vcsDiff: [
+      {
+        file: "src/review.ts",
+        additions: 1,
+        deletions: 1,
+        status: "modified",
+        patch:
+          "diff --git a/src/review.ts b/src/review.ts\n--- a/src/review.ts\n+++ b/src/review.ts\n@@ -1,3 +1,3 @@\n export const first = 1\n-export const value = 'before'\n+export const value = 'after'\n export const last = 3\n",
+      },
+    ],
+    pageMessages: () => ({
+      items: [
+        {
+          info: {
+            id: "msg_review_line_comment_regression",
+            sessionID,
+            role: "user",
+            time: { created: 1700000000000 },
+            summary: { diffs: [] },
+            agent: "build",
+            model: { providerID: "opencode", modelID: "test" },
+          },
+          parts: [
+            {
+              id: "prt_review_line_comment_regression",
+              sessionID,
+              messageID: "msg_review_line_comment_regression",
+              type: "text",
+              text: "Review this change.",
+            },
+          ],
+        },
+      ],
+    }),
+  })
+
+  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await expectSessionTitle(page, title)
+  const diffResponse = page.waitForResponse((response) => new URL(response.url()).pathname === "/vcs/diff")
+  await page.getByRole("tab", { name: "Changes" }).click()
+  expect(await (await diffResponse).json()).toHaveLength(1)
+
+  const review = page.locator('[data-component="session-review"]')
+  await expectAppVisible(review)
+  await review
+    .getByRole("heading", { name: /review\.ts/ })
+    .getByRole("button")
+    .first()
+    .click()
+}

packages/app/e2e/regression/session-request-docks.spec.ts

@@ -0,0 +1,132 @@
+import { base64Encode } from "@opencode-ai/core/util/encode"
+import { expect, test, type Page } from "@playwright/test"
+import { mockOpenCodeServer } from "../utils/mock-server"
+import { expectSessionTitle } from "../utils/waits"
+
+const directory = "C:/OpenCode/RequestDocks"
+const projectID = "proj_request_docks"
+const sessionID = "ses_request_docks"
+const title = "Request dock regression"
+
+test("shows a pending question dock", async ({ page }) => {
+  await mockServer(page, {
+    questions: [
+      {
+        id: "question-request",
+        sessionID,
+        questions: [
+          {
+            header: "Implementation",
+            question: "Which implementation should be used?",
+            options: [
+              { label: "Minimal", description: "Use the smallest correct change" },
+              { label: "Extended", description: "Include additional behavior" },
+            ],
+          },
+        ],
+      },
+    ],
+  })
+
+  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await expectSessionTitle(page, title)
+
+  const question = page.locator('[data-component="dock-prompt"][data-kind="question"]')
+  await expect(question).toBeVisible()
+  await expect(question.getByText("Which implementation should be used?")).toBeVisible()
+  await expect(question.getByRole("radio", { name: /Minimal/ })).toBeVisible()
+  await expect(question.getByRole("radio", { name: /Extended/ })).toBeVisible()
+  await expect(page.locator('[data-component="session-composer"]')).toHaveCount(0)
+
+  await question.getByRole("radio", { name: /Minimal/ }).click()
+  const reply = page.waitForRequest(
+    (request) => request.method() === "POST" && new URL(request.url()).pathname === "/question/question-request/reply",
+  )
+  await question.getByRole("button", { name: "Submit" }).click()
+  expect((await reply).postDataJSON()).toEqual({ answers: [["Minimal"]] })
+})
+
+test("shows a pending permission dock", async ({ page }) => {
+  await mockServer(page, {
+    permissions: [
+      {
+        id: "permission-request",
+        sessionID,
+        permission: "bash",
+        patterns: ["git status", "git diff"],
+        metadata: {},
+        always: [],
+      },
+    ],
+  })
+
+  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await expectSessionTitle(page, title)
+
+  const permission = page.locator('[data-component="dock-prompt"][data-kind="permission"]')
+  await expect(permission).toBeVisible()
+  await expect(permission.getByText("git status")).toBeVisible()
+  await expect(permission.getByText("git diff")).toBeVisible()
+  await expect(permission.locator('[data-slot="permission-footer-actions"] button')).toHaveCount(3)
+  await expect(page.locator('[data-component="session-composer"]')).toHaveCount(0)
+
+  const reply = page.waitForRequest((request) => request.method() === "POST")
+  await permission.getByRole("button", { name: "Allow once" }).click()
+  const request = await reply
+  expect(new URL(request.url()).pathname).toBe(`/session/${sessionID}/permissions/permission-request`)
+  expect(request.postDataJSON()).toEqual({ response: "once" })
+})
+
+async function mockServer(
+  page: Page,
+  requests: {
+    permissions?: unknown[] | (() => unknown[])
+    questions?: unknown[] | (() => unknown[])
+  },
+) {
+  await mockOpenCodeServer(page, {
+    directory,
+    project: {
+      id: projectID,
+      worktree: directory,
+      vcs: "git",
+      name: "request-docks",
+      time: { created: 1700000000000, updated: 1700000000000 },
+      sandboxes: [],
+    },
+    provider: {
+      all: [
+        {
+          id: "opencode",
+          name: "OpenCode",
+          models: {
+            "claude-opus-4-6": {
+              id: "claude-opus-4-6",
+              name: "Claude Opus 4.6",
+              limit: { context: 200_000 },
+            },
+          },
+        },
+      ],
+      connected: ["opencode"],
+      default: { providerID: "opencode", modelID: "claude-opus-4-6" },
+    },
+    sessions: [
+      {
+        id: sessionID,
+        slug: "request-docks",
+        projectID,
+        directory,
+        title,
+        version: "dev",
+        time: { created: 1700000000000, updated: 1700000000000 },
+      },
+    ],
+    pageMessages: () => ({ items: [] }),
+    permissions: requests.permissions,
+    questions: requests.questions,
+  })
+  await page.addInitScript(() => {
+    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
+  })
+}

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

@@ -147,7 +147,8 @@ test.describe("regression: session timeline local row state", () => {
 
     const wrapper = page.locator(`[data-timeline-part-id="${editPartID}"]`).first()
     await expectAppVisible(wrapper)
-    await expectAppVisible(wrapper.locator('[data-component="file"][data-mode="diff"]').first())
+    const file = wrapper.locator('[data-component="file"][data-mode="diff"]').first()
+    await expectAppVisible(file)
     await markDiffProbe(page)
 
     events.push({
@@ -159,7 +160,15 @@ test.describe("regression: session timeline local row state", () => {
     })
 
     await expect(page.locator(`[data-timeline-part-id="${textPartID}"]`).first()).toBeVisible({ timeout: 10_000 })
-    expect(await readDiffProbe(page)).toEqual({ fileMarker: "before", shadowRoots: 0, toolMarker: "before" })
+    const siblingProbe = await readDiffProbe(page)
+    expect(siblingProbe).toEqual({
+      fileMarker: "before",
+      frameMarker: "before",
+      rowKey: `assistant-part:${userMessageID}:part:${assistantMessageID}:${editPartID}`,
+      rowMarker: "before",
+      shadowRoots: 0,
+      toolMarker: "before",
+    })
 
     await markDiffProbe(page)
     events.push({
@@ -173,7 +182,73 @@ test.describe("regression: session timeline local row state", () => {
     await expect(wrapper.locator('[data-slot="diff-changes-additions"]').filter({ hasText: "+2" }).first()).toBeVisible(
       { timeout: 10_000 },
     )
-    expect(await readDiffProbe(page)).toEqual({ fileMarker: "before", shadowRoots: 0, toolMarker: "before" })
+    expect(await readDiffProbe(page)).toEqual({
+      fileMarker: "before",
+      frameMarker: "before",
+      rowKey: `assistant-part:${userMessageID}:part:${assistantMessageID}:${editPartID}`,
+      rowMarker: "before",
+      shadowRoots: 0,
+      toolMarker: "before",
+    })
+  })
+
+  test("keeps a sticky edit header aligned with a multi-hunk diff", async ({ page }) => {
+    const events: EventPayload[] = []
+    const lines = Array.from({ length: 1_000 }, (_, index) => `export const value${index} = ${index}\n`).join("")
+    const after = [100, 300, 500, 700, 900].reduce(
+      (result, index) =>
+        result.replace(`export const value${index} = ${index}`, `export const value${index} = compute(${index})`),
+      lines,
+    )
+    const part = {
+      ...editPart,
+      state: {
+        ...editPart.state,
+        metadata: {
+          ...editPart.state.metadata,
+          filediff: {
+            file: "src/regression.ts",
+            additions: 1,
+            deletions: 1,
+            before: lines,
+            after,
+          },
+        },
+      },
+    }
+    await mockServer(page, events, [userMessage, { ...assistantMessage, parts: [part] }])
+    await configurePage(page)
+
+    await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+    await expectSessionTitle(page, title)
+
+    const wrapper = page.locator(`[data-timeline-part-id="${editPartID}"]`).first()
+    const trigger = wrapper.locator('[data-slot="collapsible-trigger"]').first()
+    const diff = wrapper.locator('[data-component="edit-content"]').first()
+    await expectAppVisible(diff)
+    await expect.poll(() => wrapper.evaluate((element) => element.getBoundingClientRect().height)).toBeGreaterThan(500)
+    const samples = await wrapper.evaluate(async (element) => {
+      const root = element.closest<HTMLElement>(".scroll-view__viewport")!
+      element.scrollIntoView({ block: "start" })
+      const result = []
+      for (const offset of [0, 120, 240, 360, 480]) {
+        root.scrollBy(0, offset - (result.at(-1)?.offset ?? 0))
+        await new Promise(requestAnimationFrame)
+        const trigger = element.querySelector<HTMLElement>('[data-slot="collapsible-trigger"]')!
+        const diff = element.querySelector<HTMLElement>('[data-component="edit-content"]')!
+        result.push({
+          offset,
+          trigger: trigger.getBoundingClientRect().y,
+          diff: diff.getBoundingClientRect().y,
+          bottom: element.getBoundingClientRect().bottom,
+        })
+      }
+      return result
+    })
+
+    expect(samples[0]!.trigger).toBeLessThan(samples[0]!.diff)
+    expect(samples.every((sample) => Math.abs(sample.trigger - samples[0]!.trigger) <= 1)).toBe(true)
+    expect(samples.every((sample) => sample.trigger < sample.bottom)).toBe(true)
   })
 })
 
@@ -186,7 +261,6 @@ async function configurePage(page: Page) {
           editToolPartsExpanded: true,
           shellToolPartsExpanded: true,
           showReasoningSummaries: true,
-          showSessionProgressBar: true,
         },
       }),
     )
@@ -247,10 +321,16 @@ async function markDiffProbe(page: Page) {
     .evaluate((element) => {
       const tool = element as HTMLElement
       const file = tool.querySelector<HTMLElement>('[data-component="file"][data-mode="diff"]')
+      const row = tool.closest<HTMLElement>("[data-timeline-key]")
+      const frame = tool.closest<HTMLElement>("[data-timeline-row]")
       if (!file) throw new Error("missing edit diff file")
+      if (!row) throw new Error("missing virtual timeline row")
+      if (!frame) throw new Error("missing timeline row frame")
 
       tool.dataset.timelineProbe = "before"
       file.dataset.timelineProbe = "before"
+      row.dataset.timelineProbe = "before"
+      frame.dataset.timelineProbe = "before"
       window.__timelineDiffProbe.reset()
     })
 }
@@ -262,10 +342,15 @@ async function readDiffProbe(page: Page) {
     .evaluate((element) => {
       const tool = element as HTMLElement
       const file = tool.querySelector<HTMLElement>('[data-component="file"][data-mode="diff"]')
+      const row = tool.closest<HTMLElement>("[data-timeline-key]")
+      const frame = tool.closest<HTMLElement>("[data-timeline-row]")
       return {
         fileMarker: file?.dataset.timelineProbe,
         shadowRoots: window.__timelineDiffProbe.shadowRoots(),
         toolMarker: tool.dataset.timelineProbe,
+        rowMarker: row?.dataset.timelineProbe,
+        rowKey: row?.dataset.timelineKey,
+        frameMarker: frame?.dataset.timelineProbe,
       }
     })
 }
@@ -300,14 +385,15 @@ function readExpanded(element: Element) {
   return !!content && content.getBoundingClientRect().height > 0
 }
 
-async function mockServer(page: Page, events: EventPayload[]) {
+async function mockServer(page: Page, events: EventPayload[], messages = [userMessage, assistantMessage]) {
   await mockOpenCodeServer(page, {
     directory,
     project: project(),
     provider: provider(),
     sessions: [session()],
-    pageMessages: () => ({ items: [userMessage, assistantMessage] }),
+    pageMessages: () => ({ items: messages }),
-    events: () => events.splice(0),
+    events: () => events.splice(0, 1),
+    eventRetry: 16,
   })
 }
 

packages/app/e2e/regression/session-timeline-context-resize.spec.ts

@@ -32,8 +32,6 @@ test.describe("regression: session timeline context group resize", () => {
     const samples = await sampleExpansion(page)
     const visibleOverlap = samples.filter((sample) => sample.frame >= 1 && sample.overlap > 0.5)
 
-    console.log("context resize samples", JSON.stringify(samples, null, 2))
-
     expect(samples[0]?.overlap).toBe(0)
     expect(visibleOverlap).toEqual([])
     expect(samples.at(-1)?.expanded).toBe("true")
@@ -49,7 +47,6 @@ async function configurePage(page: Page) {
           editToolPartsExpanded: true,
           shellToolPartsExpanded: true,
           showReasoningSummaries: true,
-          showSessionProgressBar: true,
         },
       }),
     )
@@ -115,13 +112,15 @@ async function sampleExpansion(page: Page) {
 
         let frame = 1
         const tick = () => {
-          capture(frame, "raf")
+          setTimeout(() => {
-          frame += 1
+            capture(frame, "painted")
-          if (frame > 8) {
+            frame += 1
-            resolve(samples)
+            if (frame > 8) {
-            return
+              resolve(samples)
-          }
+              return
-          requestAnimationFrame(tick)
+            }
+            requestAnimationFrame(tick)
+          }, 0)
         }
         requestAnimationFrame(tick)
       }),

packages/app/e2e/regression/session-todo-dock-navigation.spec.ts

@@ -0,0 +1,186 @@
+import { base64Encode } from "@opencode-ai/core/util/encode"
+import { expect, test, type Page } from "@playwright/test"
+import { mockOpenCodeServer } from "../utils/mock-server"
+import { expectSessionTitle } from "../utils/waits"
+
+const directory = "C:/OpenCode/TodoDockNavigation"
+const projectID = "proj_todo_dock_navigation"
+const sourceID = "ses_todo_dock_source"
+const otherID = "ses_todo_dock_other"
+const sourceTitle = "Todo dock animation"
+const otherTitle = "Separate session"
+
+const activeTodos = [
+  { id: "todo-1", content: "Receive todos in the active session", status: "completed", priority: "high" },
+  { id: "todo-2", content: "Keep the dock visible across tabs", status: "completed", priority: "high" },
+  { id: "todo-3", content: "Close after the final todo", status: "in_progress", priority: "high" },
+]
+
+type EventPayload = {
+  directory: string
+  payload: Record<string, unknown>
+}
+
+test.use({ viewport: { width: 1440, height: 900 }, reducedMotion: "no-preference" })
+
+test("animates todo lifecycle without replaying it across session tabs", async ({ page }) => {
+  test.setTimeout(90_000)
+  const events: EventPayload[] = []
+  const todos: Record<string, typeof activeTodos> = { [sourceID]: [], [otherID]: [] }
+
+  await mockOpenCodeServer(page, {
+    directory,
+    project: {
+      id: projectID,
+      worktree: directory,
+      vcs: "git",
+      name: "todo-dock-navigation",
+      time: { created: 1700000000000, updated: 1700000000000 },
+      sandboxes: [],
+    },
+    provider: {
+      all: [
+        {
+          id: "opencode",
+          name: "OpenCode",
+          models: {
+            "claude-opus-4-6": {
+              id: "claude-opus-4-6",
+              name: "Claude Opus 4.6",
+              limit: { context: 200_000 },
+            },
+          },
+        },
+      ],
+      connected: ["opencode"],
+      default: { providerID: "opencode", modelID: "claude-opus-4-6" },
+    },
+    sessions: [session(sourceID, sourceTitle, 1700000000000), session(otherID, otherTitle, 1700000001000)],
+    pageMessages: () => ({ items: [] }),
+    events: () => events.splice(0, 1),
+    eventRetry: 16,
+    todos: (sessionID) => todos[sessionID] ?? [],
+  })
+  await configurePage(page)
+
+  await page.goto(sessionHref(sourceID))
+  await expectSessionTitle(page, sourceTitle)
+  const dock = page.locator('[data-component="session-todo-dock"]')
+  await expect(dock).toHaveCount(0)
+
+  events.push(statusEvent(sourceID, "busy"))
+  await expect(page.getByRole("button", { name: "Stop" })).toBeVisible()
+
+  await page.waitForTimeout(700)
+  const opening = sampleDock(page, 1_000)
+  todos[sourceID] = activeTodos
+  events.push(todoEvent(sourceID, activeTodos))
+  await expect(dock).toBeVisible()
+  await expect(dock.locator('[data-state="in_progress"]')).toHaveCount(1)
+  expect((await opening).some((sample) => sample.opacity > 0.05 && sample.opacity < 0.95)).toBe(true)
+
+  await switchSession(page, otherID, otherTitle)
+  await expect(dock).toHaveCount(0)
+
+  const returningOpen = sampleDock(page, 700)
+  await switchSession(page, sourceID, sourceTitle)
+  const openSamples = (await returningOpen).filter((sample) => sample.present)
+  expect(openSamples.length).toBeGreaterThan(0)
+  expect(openSamples[0]!.opacity).toBeGreaterThan(0.98)
+  expect(openSamples[0]!.height).toBeGreaterThan(70)
+  await expect(dock.locator('[data-state="in_progress"]')).toHaveCount(1)
+
+  const completedTodos = activeTodos.map((todo) => ({ ...todo, status: "completed" }))
+  const closing = sampleDock(page, 1_000)
+  todos[sourceID] = completedTodos
+  events.push(todoEvent(sourceID, completedTodos))
+  await expect(dock).toHaveCount(0)
+  expect((await closing).some((sample) => sample.opacity > 0.05 && sample.opacity < 0.95)).toBe(true)
+  todos[sourceID] = []
+  events.push(todoEvent(sourceID, []))
+
+  await switchSession(page, otherID, otherTitle)
+  const returningEmpty = sampleDock(page, 700)
+  await switchSession(page, sourceID, sourceTitle)
+  await expect(dock).toHaveCount(0)
+  expect((await returningEmpty).every((sample) => !sample.present)).toBe(true)
+})
+
+function session(id: string, title: string, created: number) {
+  return {
+    id,
+    slug: id,
+    projectID,
+    directory,
+    title,
+    version: "dev",
+    time: { created, updated: created },
+  }
+}
+
+function statusEvent(sessionID: string, type: "busy" | "idle"): EventPayload {
+  return {
+    directory,
+    payload: { type: "session.status", properties: { sessionID, status: { type } } },
+  }
+}
+
+function todoEvent(sessionID: string, next: typeof activeTodos): EventPayload {
+  return {
+    directory,
+    payload: { type: "todo.updated", properties: { sessionID, todos: next } },
+  }
+}
+
+async function configurePage(page: Page) {
+  const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+  await page.addInitScript(
+    ({ directory, dirBase64, server, sessionIDs }) => {
+      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
+      localStorage.setItem(
+        "opencode.global.dat:server",
+        JSON.stringify({
+          projects: { local: [{ worktree: directory, expanded: true }] },
+          lastProject: { local: directory },
+        }),
+      )
+      localStorage.setItem(
+        "opencode.global.dat:tabs",
+        JSON.stringify(sessionIDs.map((sessionId) => ({ type: "session", server, dirBase64, sessionId }))),
+      )
+    },
+    { directory, dirBase64: base64Encode(directory), server, sessionIDs: [sourceID, otherID] },
+  )
+}
+
+function sessionHref(sessionID: string) {
+  const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+  return `/server/${base64Encode(server)}/session/${sessionID}`
+}
+
+async function switchSession(page: Page, sessionID: string, title: string) {
+  const href = sessionHref(sessionID)
+  const tab = page.locator(`[data-slot="titlebar-tabs"] a[href="${href}"]`).first()
+  await expect(tab).toBeVisible()
+  await tab.click()
+  await expectSessionTitle(page, title)
+}
+
+function sampleDock(page: Page, duration: number) {
+  return page.evaluate(async (duration) => {
+    const samples: { present: boolean; height: number; opacity: number }[] = []
+    const start = performance.now()
+    while (performance.now() - start < duration) {
+      const dock = document.querySelector<HTMLElement>('[data-component="session-todo-dock"]')
+      const clip = dock?.parentElement?.parentElement
+      const label = dock?.querySelector<HTMLElement>('[data-action="session-todo-toggle"] span[aria-label]')
+      samples.push({
+        present: !!dock,
+        height: clip?.getBoundingClientRect().height ?? 0,
+        opacity: label ? Number.parseFloat(getComputedStyle(label).opacity) : 0,
+      })
+      await new Promise(requestAnimationFrame)
+    }
+    return samples
+  }, duration)
+}

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

@@ -21,6 +21,7 @@ const words = [
   "vector",
 ]
 
+const serverKey = "http://127.0.0.1:4096"
 const sourceID = "ses_smoke_source"
 const targetID = "ses_smoke_target"
 const directory = "C:/OpenCode/SmokeProject"
@@ -139,7 +140,7 @@ function toolPart(
       status: "completed",
       input,
       output: lorem(index * 23 + partIndex, outputLength),
-      title: tool === "bash" ? "Verify generated output" : input.filePath || input.path || input.pattern || "completed",
+      title: tool === "bash" ? input.command : input.filePath || input.path || input.pattern || "completed",
       metadata,
       time: { start: 1700000000000 + index * 10_000, end: 1700000000000 + index * 10_000 + 400 },
     },
@@ -200,9 +201,7 @@ function turn(index: number): Message[] {
     ...(index % 8 === 0
       ? [toolPart(index, 8, "apply_patch", { files: [`src/generated/patch-${index}.ts`] }, 620)]
       : []),
-    ...(index % 7 === 0
+    ...(index % 7 === 0 ? [toolPart(index, 4, "bash", { command: "bun typecheck" }, 620)] : []),
-      ? [toolPart(index, 4, "bash", { command: "bun typecheck", description: "Verify generated output" }, 620)]
-      : []),
     ...(index % 10 === 0 ? [toolPart(index, 9, "webfetch", { url: "https://example.com/docs/sample" }, 120)] : []),
     ...(index % 11 === 0 ? [toolPart(index, 10, "websearch", { query: "sample movement notes" }, 240)] : []),
     ...(index % 13 === 0
@@ -242,6 +241,7 @@ function orderedParts(message: Message) {
 
 export const fixture = {
   directory,
+  serverKey,
   project: {
     id: projectID,
     worktree: directory,
@@ -295,6 +295,7 @@ export const fixture = {
         .filter(renderable)
         .map((part) => part.id),
     ),
+    expandedShellPartID: targetMessages.flatMap((message) => message.parts).find((part) => part.tool === "bash")!.id,
   },
 }
 

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

@@ -30,6 +30,295 @@ type SmokeWindow = Window & {
 test.describe("smoke: session timeline", () => {
   test.setTimeout(240_000)
 
+  test("keeps the visible message fixed while prepending history", async ({ page }) => {
+    const requests: { before?: string; phase: "start" | "end"; at: number }[] = []
+    await mockOpenCodeServer(page, {
+      sessions: fixture.sessions,
+      provider: fixture.provider,
+      directory: fixture.directory,
+      project: fixture.project,
+      pageMessages,
+      messageDelay: 3_000,
+      onMessages: (input) => requests.push({ before: input.before, phase: input.phase, at: performance.now() }),
+    })
+    await configureSmokePage(page, fixture.directory)
+
+    await navigateToSession(page, fixture.directory, fixture.targetID, fixture.expected.targetTitle)
+    await waitForTimelineStable(page)
+    const scroller = timelineScroller(page)
+    await pointAtTimeline(page)
+    const deadline = Date.now() + 120_000
+    while (!requests.some((request) => request.before && request.phase === "start")) {
+      if (Date.now() >= deadline) throw new Error("Timed out scrolling to the history boundary")
+      await page.mouse.wheel(0, -240)
+      await page.waitForTimeout(20)
+    }
+    expect(requests.some((request) => request.before && request.phase === "end")).toBe(false)
+    for (let index = 0; index < 12; index++) {
+      await page.mouse.wheel(0, -120)
+      await page.waitForTimeout(20)
+    }
+    const keys = await scroller.evaluate((element) => {
+      const view = element.getBoundingClientRect()
+      return [...element.querySelectorAll<HTMLElement>("[data-timeline-part-id]")]
+        .filter((row) => {
+          const rect = row.getBoundingClientRect()
+          return rect.bottom > view.top && rect.top < view.bottom
+        })
+        .map((row) => row.dataset.timelinePartId)
+        .filter((id): id is string => !!id)
+        .slice(0, 3)
+    })
+    expect(keys.length).toBeGreaterThan(0)
+    const positions = () =>
+      scroller.evaluate((element, keys) => {
+        const top = element.getBoundingClientRect().top
+        return Object.fromEntries(
+          keys.map((key) => {
+            const row = element.querySelector<HTMLElement>(`[data-timeline-part-id="${key}"]`)
+            if (!row) throw new Error(`Missing stable timeline key: ${key}`)
+            return [key, Math.round((row.getBoundingClientRect().top - top) * devicePixelRatio) / devicePixelRatio]
+          }),
+        )
+      }, keys)
+    const before = await positions()
+    expect(requests.some((request) => request.before && request.phase === "end")).toBe(false)
+
+    await expect.poll(() => requests.some((request) => request.before && request.phase === "end")).toBe(true)
+    await waitForTimelineStable(page)
+    await expect.poll(positions).toEqual(before)
+  })
+
+  test("preserves the timeline gap above the composer", async ({ page }) => {
+    await mockOpenCodeServer(page, {
+      sessions: fixture.sessions,
+      provider: fixture.provider,
+      directory: fixture.directory,
+      project: fixture.project,
+      pageMessages,
+    })
+    await configureSmokePage(page, fixture.directory)
+
+    await navigateToSession(page, fixture.directory, fixture.targetID, fixture.expected.targetTitle)
+    await waitForTimelineStable(page)
+    const scroller = timelineScroller(page)
+    await scroller.evaluate((element) => {
+      element.scrollTop = element.scrollHeight
+    })
+    await waitForTimelineStable(page)
+
+    const spacer = scroller.locator('[data-timeline-row="bottom-spacer"]')
+    await expect(spacer).toBeVisible()
+    expect(await spacer.evaluate((element) => element.getBoundingClientRect().height)).toBe(64)
+    await expect
+      .poll(() => scroller.evaluate((element) => element.scrollHeight - element.clientHeight - element.scrollTop))
+      .toBeLessThanOrEqual(1)
+  })
+
+  test("paints cached session tabs at the latest message", async ({ page }) => {
+    await mockOpenCodeServer(page, {
+      sessions: fixture.sessions,
+      provider: fixture.provider,
+      directory: fixture.directory,
+      project: fixture.project,
+      pageMessages: (sessionID) => ({ items: fixture.messages[sessionID as keyof typeof fixture.messages] ?? [] }),
+    })
+    await configureSmokePage(page, fixture.directory)
+    await page.addInitScript(
+      ({ dirBase64, sourceID, targetID }) => {
+        localStorage.setItem(
+          "opencode.global.dat:tabs",
+          JSON.stringify(
+            [sourceID, targetID].map((sessionId) => ({
+              type: "session",
+              server: "http://127.0.0.1:4096",
+              dirBase64,
+              sessionId,
+            })),
+          ),
+        )
+      },
+      { dirBase64: base64Encode(fixture.directory), sourceID: fixture.sourceID, targetID: fixture.targetID },
+    )
+
+    await page.goto(`/${base64Encode(fixture.directory)}/session/${fixture.targetID}`)
+    await expectSessionTitle(page, fixture.expected.targetTitle)
+    await switchTitlebarSession(page, fixture.sourceID, fixture.expected.sourceTitle)
+
+    const destination = fixture.messages[fixture.targetID].map((message) => message.info.id)
+    const last = fixture.expected.targetMessageIDs.at(-1)!
+    await page.evaluate(
+      ({ destination, last }) => {
+        const ids = new Set(destination)
+        const samples: Array<{ ids: string[]; last: boolean; bottomError?: number }> = []
+        const firstPaintNodes = new WeakSet<Node>()
+        let firstPaint = false
+        let removedFirstPaintNodes = 0
+        let running = true
+        new MutationObserver((records) => {
+          if (!firstPaint || !running) return
+          records.forEach((record) =>
+            record.removedNodes.forEach((node) => {
+              if (firstPaintNodes.has(node)) removedFirstPaintNodes += 1
+              if (!(node instanceof Element)) return
+              node.querySelectorAll("*").forEach((element) => {
+                if (firstPaintNodes.has(element)) removedFirstPaintNodes += 1
+              })
+            }),
+          )
+        }).observe(document.documentElement, { childList: true, subtree: true })
+        const sample = () => {
+          if (!running) return
+          setTimeout(() => {
+            if (!running) return
+            const root = [...document.querySelectorAll<HTMLElement>(".scroll-view__viewport")].find((element) =>
+              element.querySelector("[data-timeline-row]"),
+            )
+            if (root) {
+              const view = root.getBoundingClientRect()
+              const visible = [...root.querySelectorAll<HTMLElement>("[data-message-id]")]
+                .filter((element) => {
+                  const rect = element.getBoundingClientRect()
+                  return rect.bottom > view.top && rect.top < view.bottom
+                })
+                .map((element) => element.dataset.messageId!)
+                .filter((id) => ids.has(id))
+              const bottom = root
+                .querySelector<HTMLElement>('[data-timeline-row="bottom-spacer"]')
+                ?.getBoundingClientRect()
+              samples.push({ ids: visible, last: visible.includes(last), bottomError: bottom?.bottom - view.bottom })
+              if (!firstPaint && visible.includes(last) && Math.abs((bottom?.bottom ?? Infinity) - view.bottom) <= 1) {
+                firstPaint = true
+                root.querySelectorAll<HTMLElement>("[data-timeline-key]").forEach((row) => {
+                  const rect = row.getBoundingClientRect()
+                  if (rect.bottom <= view.top || rect.top >= view.bottom) return
+                  firstPaintNodes.add(row)
+                  row.querySelectorAll("*").forEach((element) => firstPaintNodes.add(element))
+                })
+              }
+            }
+            requestAnimationFrame(sample)
+          }, 0)
+        }
+        ;(
+          window as Window & {
+            __sessionTabPaint?: { samples: typeof samples; removed: () => number; stop: () => void }
+          }
+        ).__sessionTabPaint = {
+          samples,
+          removed: () => removedFirstPaintNodes,
+          stop: () => {
+            running = false
+          },
+        }
+        requestAnimationFrame(sample)
+      },
+      { destination, last },
+    )
+
+    await switchTitlebarSession(page, fixture.targetID, fixture.expected.targetTitle)
+    await page.waitForFunction(() =>
+      (
+        window as Window & { __sessionTabPaint?: { samples: Array<{ ids: string[] }> } }
+      ).__sessionTabPaint?.samples.some((sample) => sample.ids.length > 0),
+    )
+    await page.waitForTimeout(200)
+    const first = await page.evaluate(() => {
+      const probe = (
+        window as Window & {
+          __sessionTabPaint?: {
+            samples: Array<{ ids: string[]; last: boolean; bottomError?: number }>
+            removed: () => number
+            stop: () => void
+          }
+        }
+      ).__sessionTabPaint!
+      probe.stop()
+      return { first: probe.samples.find((sample) => sample.ids.length > 0), removed: probe.removed() }
+    })
+    expect(first.first?.last).toBe(true)
+    expect(Math.abs(first.first?.bottomError ?? Infinity)).toBeLessThanOrEqual(1)
+    expect(first.removed).toBe(0)
+  })
+
+  test("paints a cold session tab at the latest message", async ({ page }) => {
+    await mockOpenCodeServer(page, {
+      sessions: fixture.sessions,
+      provider: fixture.provider,
+      directory: fixture.directory,
+      project: fixture.project,
+      pageMessages: (sessionID) => ({ items: fixture.messages[sessionID as keyof typeof fixture.messages] ?? [] }),
+    })
+    await configureSmokePage(page, fixture.directory)
+    await page.addInitScript(
+      ({ dirBase64, sourceID, targetID }) => {
+        localStorage.setItem(
+          "opencode.global.dat:tabs",
+          JSON.stringify(
+            [sourceID, targetID].map((sessionId) => ({
+              type: "session",
+              server: "http://127.0.0.1:4096",
+              dirBase64,
+              sessionId,
+            })),
+          ),
+        )
+      },
+      { dirBase64: base64Encode(fixture.directory), sourceID: fixture.sourceID, targetID: fixture.targetID },
+    )
+    await page.goto(`/${base64Encode(fixture.directory)}/session/${fixture.sourceID}`)
+    await expectSessionTitle(page, fixture.expected.sourceTitle)
+    const last = fixture.expected.targetMessageIDs.at(-1)!
+    const destination = fixture.messages[fixture.targetID].map((message) => message.info.id)
+    await page.evaluate(
+      ({ destination, last }) => {
+        const ids = new Set(destination)
+        const samples: Array<{ destination: boolean; last: boolean; bottomError?: number }> = []
+        const sample = () => {
+          const root = [...document.querySelectorAll<HTMLElement>(".scroll-view__viewport")].find((element) =>
+            element.querySelector("[data-timeline-row]"),
+          )
+          if (root) {
+            const view = root.getBoundingClientRect()
+            const spacer = root
+              .querySelector<HTMLElement>('[data-timeline-row="bottom-spacer"]')
+              ?.getBoundingClientRect()
+            const messages = [...root.querySelectorAll<HTMLElement>("[data-message-id]")].filter((element) => {
+              const rect = element.getBoundingClientRect()
+              return rect.bottom > view.top && rect.top < view.bottom
+            })
+            samples.push({
+              destination: messages.some((element) => ids.has(element.dataset.messageId!)),
+              last: messages.some((element) => element.dataset.messageId === last),
+              bottomError: spacer ? spacer.bottom - view.bottom : undefined,
+            })
+          }
+          requestAnimationFrame(() => setTimeout(sample, 0))
+        }
+        ;(window as Window & { __coldTabSamples?: typeof samples }).__coldTabSamples = samples
+        requestAnimationFrame(() => setTimeout(sample, 0))
+      },
+      { destination, last },
+    )
+
+    await switchTitlebarSession(page, fixture.targetID, fixture.expected.targetTitle)
+    await page.waitForFunction(() =>
+      (window as Window & { __coldTabSamples?: Array<{ destination: boolean }> }).__coldTabSamples?.some(
+        (sample) => sample.destination,
+      ),
+    )
+    const result = await page.evaluate(() => {
+      const samples = (
+        window as Window & {
+          __coldTabSamples?: Array<{ destination: boolean; last: boolean; bottomError?: number }>
+        }
+      ).__coldTabSamples!
+      return samples.find((sample) => sample.destination)!
+    })
+    expect(result.last).toBe(true)
+    expect(Math.abs(result.bottomError ?? Infinity)).toBeLessThanOrEqual(1)
+  })
+
   test("renders seeded timeline in order while paging through history", async ({ page }) => {
     const errors = trackPageErrors(page)
     await mockOpenCodeServer(page, {
@@ -49,6 +338,18 @@ test.describe("smoke: session timeline", () => {
     const expectedMessageIDs = fixture.expected.targetMessageIDs
     await expectSessionTimelineReady(page, expectedPartIDs, expectedMessageIDs, errors)
     await expectCanScrollToStart(page, expectedPartIDs, expectedMessageIDs, errors)
+
+    const shell = page.locator(`[data-timeline-part-id="${fixture.expected.expandedShellPartID}"]`)
+    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-pre"]')).toContainText("$ bun typecheck")
+    await shellTrigger.click()
+    await expect(shellTrigger).toHaveAttribute("aria-expanded", "false")
+    await expect(shellSubtitle).toHaveText("bun typecheck")
+    await shellTrigger.click()
+    await expect(shellTrigger).toHaveAttribute("aria-expanded", "true")
+    await expect(shellSubtitle).toHaveCount(0)
   })
 })
 
@@ -61,7 +362,6 @@ async function configureSmokePage(page: Page, directory: string) {
           editToolPartsExpanded: true,
           shellToolPartsExpanded: true,
           showReasoningSummaries: true,
-          showSessionProgressBar: true,
         },
       }),
     )
@@ -427,6 +727,14 @@ async function navigateToSession(page: Page, directory: string, sessionId: strin
   await expectSessionTitle(page, expectedTitle)
 }
 
+async function switchTitlebarSession(page: Page, sessionID: string, title: string) {
+  const href = `/server/${base64Encode(fixture.serverKey)}/session/${sessionID}`
+  const tab = page.locator(`[data-slot="titlebar-tabs"] a[href="${href}"]`).first()
+  await expect(tab).toBeVisible()
+  await tab.click()
+  await expectSessionTitle(page, title)
+}
+
 async function expectSessionReady(page: Page) {
   await expectAppVisible(page.getByRole("textbox", { name: /Ask anything/i }))
 }

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

@@ -1,15 +1,6 @@
 import type { Page, Route } from "@playwright/test"
 
-const emptyList = new Set([
+const emptyList = new Set(["/skill", "/command", "/lsp", "/formatter", "/vcs/status", "/vcs/diff"])
-  "/skill",
-  "/command",
-  "/lsp",
-  "/formatter",
-  "/permission",
-  "/question",
-  "/vcs/status",
-  "/vcs/diff",
-])
 const emptyObject = new Set(["/global/config", "/config", "/provider/auth", "/mcp", "/session/status"])
 
 export interface MockServerConfig {
@@ -18,10 +9,19 @@ export interface MockServerConfig {
   project: unknown
   sessions: ({ id: string } & Record<string, unknown>)[]
   pageMessages: (sessionId: string, limit: number, before?: string) => { items: unknown[]; cursor?: string }
+  vcsDiff?: unknown[]
+  messageDelay?: number
+  onMessages?: (input: { sessionID: string; before?: string; phase: "start" | "end" }) => void
   events?: () => unknown[]
+  eventRetry?: number
+  todos?: (sessionID: string) => unknown[]
+  permissions?: unknown[] | (() => unknown[])
+  questions?: unknown[] | (() => unknown[])
 }
 
 export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
+  const cursors = new Map<string, string>()
+  let nextCursor = 0
   const staticRoutes: Record<string, unknown> = {
     "/provider": config.provider,
     "/path": {
@@ -41,11 +41,19 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
   await page.route("**/*", async (route) => {
     const url = new URL(route.request().url())
     const targetPort = process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"
-    if (url.port !== targetPort) return route.fallback()
+    const appPort = new URL(
+      process.env.PLAYWRIGHT_BASE_URL ?? `http://127.0.0.1:${process.env.PLAYWRIGHT_PORT ?? "3000"}`,
+    ).port
+    if (url.port !== targetPort && url.port !== appPort) return route.fallback()
 
     const path = url.pathname
-    if (path === "/global/event" || path === "/event") return sse(route, config.events?.())
+    if (path === "/global/event" || path === "/event") return sse(route, config.events?.(), config.eventRetry)
     if (path === "/global/health") return json(route, { healthy: true })
+    if (path === "/permission")
+      return json(route, typeof config.permissions === "function" ? config.permissions() : (config.permissions ?? []))
+    if (path === "/question")
+      return json(route, typeof config.questions === "function" ? config.questions() : (config.questions ?? []))
+    if (path === "/vcs/diff" && config.vcsDiff) return json(route, config.vcsDiff)
     if (emptyObject.has(path)) return json(route, {})
     if (emptyList.has(path)) return json(route, [])
     if (path in staticRoutes) return json(route, staticRoutes[path])
@@ -56,23 +64,34 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
       return json(route, session ?? {})
     }
 
-    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(path)) return json(route, [])
+    const todoMatch = path.match(/^\/session\/([^/]+)\/todo$/)
+    if (todoMatch) return json(route, config.todos?.(todoMatch[1]!) ?? [])
+    if (/^\/session\/[^/]+\/(children|diff)$/.test(path)) return json(route, [])
 
     const messagesMatch = path.match(/^\/session\/([^/]+)\/message$/)
     if (messagesMatch) {
+      const token = url.searchParams.get("before") ?? undefined
+      const before = token ? cursors.get(token) : undefined
+      if (token && !before) return json(route, { error: "Invalid cursor" }, undefined, 400)
+      config.onMessages?.({ sessionID: messagesMatch[1], before, phase: "start" })
+      if (config.messageDelay) await new Promise((resolve) => setTimeout(resolve, config.messageDelay))
       const limit = Number(url.searchParams.get("limit") ?? 80)
-      const before = url.searchParams.get("before") ?? undefined
       const pageData = config.pageMessages(messagesMatch[1], limit, before)
-      return json(route, pageData.items, pageData.cursor ? { "x-next-cursor": pageData.cursor } : undefined)
+      config.onMessages?.({ sessionID: messagesMatch[1], before, phase: "end" })
+      if (!pageData.cursor) return json(route, pageData.items)
+      const cursor = `cursor_${++nextCursor}`
+      cursors.set(cursor, pageData.cursor)
+      return json(route, pageData.items, { "x-next-cursor": cursor })
     }
 
-    return json(route, {})
+    if (url.port === targetPort && targetPort !== appPort) return json(route, {})
+    return route.fallback()
   })
 }
 
-function json(route: Route, body: unknown, headers?: Record<string, string>) {
+function json(route: Route, body: unknown, headers?: Record<string, string>, status = 200) {
   return route.fulfill({
-    status: 200,
+    status,
     contentType: "application/json",
     headers: {
       "access-control-allow-origin": "*",
@@ -83,10 +102,10 @@ function json(route: Route, body: unknown, headers?: Record<string, string>) {
   })
 }
 
-function sse(route: Route, events?: unknown[]) {
+function sse(route: Route, events?: unknown[], retry?: number) {
   return route.fulfill({
     status: 200,
     contentType: "text/event-stream",
-    body: events?.map((event) => `data: ${JSON.stringify(event)}\n\n`).join("") || ": ok\n\n",
+    body: `${retry === undefined ? "" : `retry: ${retry}\n\n`}${events?.map((event) => `data: ${JSON.stringify(event)}\n\n`).join("") || ": ok\n\n"}`,
   })
 }

packages/app/index.html

@@ -1,22 +1,28 @@
 <!doctype html>
-<html lang="en" style="background-color: var(--background-base)">
+<html lang="en" style="background-color: var(--v2-background-bg-deep, #fafafa)">
   <head>
     <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1, interactive-widget=resizes-content" />
+    <meta
+      name="viewport"
+      content="width=device-width, initial-scale=1, interactive-widget=resizes-content, viewport-fit=cover"
+    />
     <title>OpenCode</title>
     <link rel="icon" type="image/png" href="/favicon-96x96-v3.png" sizes="96x96" />
     <link rel="icon" type="image/svg+xml" href="/favicon-v3.svg" />
     <link rel="shortcut icon" href="/favicon-v3.ico" />
     <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon-v3.png" />
     <link rel="manifest" href="/site.webmanifest" />
-    <meta name="theme-color" content="#F8F7F7" />
+    <meta name="theme-color" content="#fafafa" />
+    <meta name="mobile-web-app-capable" content="yes" />
+    <meta name="apple-mobile-web-app-capable" content="yes" />
+    <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
     <meta property="og:image" content="/social-share.png" />
     <meta property="twitter:image" content="/social-share.png" />
     <script id="oc-theme-preload-script" src="/oc-theme-preload.js"></script>
   </head>
-  <body class="antialiased overscroll-none text-12-regular overflow-hidden">
+  <body class="antialiased overscroll-none text-12-regular overflow-hidden bg-v2-background-bg-deep">
     <noscript>You need to enable JavaScript to run this app.</noscript>
-    <div id="root" class="flex flex-col h-dvh p-px"></div>
+    <div id="root" class="flex flex-col h-dvh bg-v2-background-bg-deep p-px"></div>
     <script src="/src/entry.tsx" type="module"></script>
   </body>
 </html>

packages/app/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@opencode-ai/app",
-  "version": "1.17.4",
+  "version": "1.17.11",
   "description": "",
   "type": "module",
   "exports": {
@@ -17,13 +17,15 @@
     "dev": "vite",
     "build": "vite build",
     "serve": "vite preview",
-    "test": "bun run test:unit",
+    "test": "bun run test:unit && bun run test:browser",
     "test:unit": "bun test --only-failures --preload ./happydom.ts ./src",
+    "test:browser": "bun test --conditions=browser --preload ./happydom.ts ./test-browser",
     "test:unit:watch": "bun test --watch --preload ./happydom.ts ./src",
     "test:e2e": "playwright test",
     "test:e2e:local": "playwright test",
     "test:e2e:ui": "playwright test --ui",
-    "test:e2e:report": "playwright show-report e2e/playwright-report"
+    "test:e2e:report": "playwright show-report e2e/playwright-report",
+    "test:bench": "bun test ./e2e/performance/unit && playwright test --config e2e/performance/playwright.config.ts"
   },
   "license": "MIT",
   "devDependencies": {
@@ -45,7 +47,9 @@
     "@kobalte/core": "catalog:",
     "@opencode-ai/core": "workspace:*",
     "@opencode-ai/sdk": "workspace:*",
+    "@opencode-ai/session-ui": "workspace:*",
     "@opencode-ai/ui": "workspace:*",
+    "@pierre/trees": "1.0.0-beta.4",
     "@sentry/solid": "catalog:",
     "@shikijs/transformers": "3.9.2",
     "@solid-primitives/active-element": "2.1.3",
@@ -63,6 +67,7 @@
     "@solidjs/meta": "catalog:",
     "@solidjs/router": "catalog:",
     "@tanstack/solid-query": "5.91.4",
+    "@tanstack/solid-virtual": "catalog:",
     "@thisbeyond/solid-dnd": "0.7.5",
     "diff": "catalog:",
     "effect": "catalog:",
@@ -75,7 +80,6 @@
     "shiki": "catalog:",
     "solid-js": "catalog:",
     "solid-list": "catalog:",
-    "tailwindcss": "catalog:",
+    "tailwindcss": "catalog:"
-    "virtua": "catalog:"
   }
 }

packages/app/playwright.config.ts

@@ -9,6 +9,7 @@ const reuse = !process.env.CI
 const workers = Number(process.env.PLAYWRIGHT_WORKERS ?? (process.env.CI ? 5 : 0)) || undefined
 export default defineConfig({
   testDir: "./e2e",
+  testIgnore: process.env.OPENCODE_PERFORMANCE === "1" ? "performance/**/*.test.ts" : "performance/**",
   outputDir: "./e2e/test-results",
   timeout: 60_000,
   expect: {

packages/app/public/oc-theme-preload.js

@@ -15,10 +15,11 @@
 
   document.documentElement.dataset.theme = themeId
   document.documentElement.dataset.colorScheme = mode
+  document.documentElement.style.backgroundColor = isDark ? "#080808" : "#fafafa"
 
   // Update theme-color meta tag to match app color scheme
   var metas = document.querySelectorAll("meta[name='theme-color']")
-  if (metas.length > 0) metas[0].setAttribute("content", isDark ? "#131010" : "#F8F7F7")
+  if (metas.length > 0) metas[0].setAttribute("content", isDark ? "#080808" : "#fafafa")
 
   if (themeId === "oc-2") return
 

packages/app/src/app.tsx

@@ -4,7 +4,7 @@ import { I18nProvider } from "@opencode-ai/ui/context"
 import { DialogProvider } from "@opencode-ai/ui/context/dialog"
 import { FileComponentProvider } from "@opencode-ai/ui/context/file"
 import { MarkedProvider } from "@opencode-ai/ui/context/marked"
-import { File } from "@opencode-ai/ui/file"
+import { File } from "@opencode-ai/session-ui/file"
 import { Font } from "@opencode-ai/ui/font"
 import { Splash } from "@opencode-ai/ui/logo"
 import { ThemeProvider } from "@opencode-ai/ui/theme/context"
@@ -30,8 +30,8 @@ import { Dynamic } from "solid-js/web"
 import { CommandProvider } from "@/context/command"
 import { CommentsProvider } from "@/context/comments"
 import { FileProvider } from "@/context/file"
-import { ServerSDKProvider } from "@/context/server-sdk"
+import { ServerSDKProvider, useServerSDK } from "@/context/server-sdk"
-import { ServerSyncProvider } from "@/context/server-sync"
+import { ServerSyncProvider, useServerSync } from "@/context/server-sync"
 import { GlobalProvider } from "@/context/global"
 import { HighlightsProvider } from "@/context/highlights"
 import { LanguageProvider, type Locale, useLanguage } from "@/context/language"
@@ -47,81 +47,199 @@ import { TabsProvider, useTabs, type DraftTab } from "@/context/tabs"
 import { SDKProvider, useSDK } from "@/context/sdk"
 import { WslServersProvider } from "@/wsl/context"
 import DirectoryLayout, { DirectoryDataProvider } from "@/pages/directory-layout"
-import Layout from "@/pages/layout"
+import LegacyLayout from "@/pages/layout"
+import NewLayout from "@/pages/layout-new"
 import { ErrorPage } from "./pages/error"
 import { useCheckServerHealth } from "./utils/server-health"
+import {
+  legacySessionHref,
+  legacySessionServer,
+  requireServerKey,
+  selectSessionLineage,
+  sessionHref,
+} from "./utils/session-route"
+import { isSessionNotFoundError } from "./utils/server-errors"
+
+import Session from "@/pages/session"
+import { NewHome, LegacyHome } from "@/pages/home"
 
-const HomeRoute = lazy(() => import("@/pages/home"))
-const Session = lazy(() => import("@/pages/session"))
 const NewSession = lazy(() => import("@/pages/new-session"))
 
-const SessionRoute = Object.assign(
+const SessionRoute = () => {
-  () => {
+  const settings = useSettings()
-    const settings = useSettings()
+  const params = useParams()
-    const params = useParams()
+  const [search] = useSearchParams<{ draftId?: string; prompt?: string }>()
-    const [search] = useSearchParams<{ draftId?: string; prompt?: string }>()
+  const sdk = useSDK()
-    const sdk = useSDK()
+  const server = useServer()
-    const server = useServer()
+  const tabs = useTabs()
-    const tabs = useTabs()
-
-    // When the new layout is enabled, the legacy new-session route (/:dir/session with no id)
-    // is replaced by a draft at /new-session?draftId=…
-    createEffect(() => {
-      if (!settings.general.newLayoutDesigns()) return
-      if (params.id || search.draftId) return
-      if (!tabs.ready() || !sdk.directory) return
-      tabs.newDraft({ server: server.key, directory: sdk.directory }, search.prompt)
-    })
 
+  if (params.id && settings.general.newLayoutDesigns()) {
+    const sessionID = params.id
     return (
+      <Show when={tabs.ready()}>
+        {(_) => {
+          const persisted = tabs.store.filter((item) => item.type === "session")
+          return <Navigate href={sessionHref(legacySessionServer(persisted, sessionID, server.key), sessionID)} />
+        }}
+      </Show>
+    )
+  }
+
+  // When the new layout is enabled, the legacy new-session route (/:dir/session with no id)
+  // is replaced by a draft at /new-session?draftId=…
+  createEffect(() => {
+    if (!settings.general.newLayoutDesigns()) return
+    if (params.id || search.draftId) return
+    if (!tabs.ready() || !sdk().directory) return
+    tabs.newDraft({ server: server.key, directory: sdk().directory }, search.prompt)
+  })
+
+  return (
+    <SessionProviders>
+      <Session />
+    </SessionProviders>
+  )
+}
+
+const TargetSessionRoute = () => {
+  const params = useParams<{ serverKey: string; id: string }>()
+  const server = useServer()
+  const conn = createMemo(() => {
+    const key = requireServerKey(params.serverKey)
+    return server.list.find((item) => ServerConnection.key(item) === key)
+  })
+
+  return (
+    <Show when={requireServerKey(params.serverKey)} keyed>
+      <ServerSDKProvider server={conn}>
+        <ServerSyncProvider server={conn}>
+          <ResolvedTargetSessionRoute />
+        </ServerSyncProvider>
+      </ServerSDKProvider>
+    </Show>
+  )
+}
+
+function ResolvedTargetSessionRoute() {
+  const params = useParams<{ serverKey: string; id: string }>()
+  const settings = useSettings()
+  const tabs = useTabs()
+  const sync = useServerSync()
+  const serverKey = createMemo(() => requireServerKey(params.serverKey))
+  const cached = createMemo(() => sync().session.lineage.peek(params.id))
+  const [resolved] = createResource(
+    () => {
+      if (cached()) return
+      return { id: params.id, server: serverKey(), sync: sync() }
+    },
+    ({ id, server, sync }) =>
+      sync.session.lineage.resolve(id).catch((error) => {
+        if (isSessionNotFoundError(error, id)) tabs.removeSessionTab({ server, sessionId: id })
+        throw error
+      }),
+  )
+  const current = createMemo(() => selectSessionLineage(params.id, cached(), resolved()))
+  const directory = createMemo(() => current()?.session.directory)
+  const targetDirectory = () => directory()!
+
+  createEffect(() => {
+    const session = current()
+    if (!session) return
+    tabs.addSessionTab({
+      server: serverKey(),
+      sessionId: session.root.id,
+    })
+  })
+
+  return (
+    <TargetServerScopedProviders directory={directory} sessionID={() => params.id}>
+      <Show when={!!current() || resolved.state !== "errored"} fallback={<ErrorPage error={resolved.error} />}>
+        <Show when={directory()}>
+          <Show
+            when={settings.general.newLayoutDesigns()}
+            fallback={<Navigate href={legacySessionHref(directory()!, params.id)} />}
+          >
+            <SDKProvider directory={targetDirectory}>
+              <DirectoryDataProvider directory={targetDirectory} server={serverKey}>
+                <TargetSessionPage />
+              </DirectoryDataProvider>
+            </SDKProvider>
+          </Show>
+        </Show>
+      </Show>
+    </TargetServerScopedProviders>
+  )
+}
+
+function TargetSessionPage() {
+  const sdk = useSDK()
+  const serverSDK = useServerSDK()
+  return (
+    <Show when={`${serverSDK().scope}\0${sdk().directory}`} keyed>
       <SessionProviders>
         <Session />
       </SessionProviders>
-    )
+    </Show>
-  },
+  )
-  { preload: Session.preload },
+}
-)
+
+// Wraps the non-draft routes. They are gated on (and keyed to) the globally selected
+// server via ServerKey, then provide the server-scoped shell (Permission/Layout/
+// Notification/Models + the visual Layout) for that server.
+function SelectedServerProviders(props: ParentProps) {
+  return (
+    <ServerKey>
+      <ServerSDKProvider>
+        <ServerSyncProvider>{props.children}</ServerSyncProvider>
+      </ServerSDKProvider>
+    </ServerKey>
+  )
+}
+
+function LegacyServerLayout(props: ParentProps) {
+  return (
+    <SelectedServerProviders>
+      <LegacyServerScopedShell>{props.children}</LegacyServerScopedShell>
+    </SelectedServerProviders>
+  )
+}
 
 function DraftRoute() {
   const [search] = useSearchParams<{ draftId?: string }>()
   const tabs = useTabs()
   return (
     <Show when={tabs.ready()}>
-      <Show when={search.draftId} keyed fallback={<Navigate href="/" />}>
+      <Show
-        {(draftID) => <ResolvedDraftRoute draftID={draftID} />}
+        when={tabs.store.find((tab): tab is DraftTab => tab.type === "draft" && tab.draftID === search.draftId)}
+        keyed
+        fallback={<Navigate href="/" />}
+      >
+        {(draft) => <ResolvedDraftRoute draft={draft} />}
       </Show>
     </Show>
   )
 }
 
-function ResolvedDraftRoute(props: { draftID: string }) {
+function ResolvedDraftRoute(props: { draft: DraftTab }) {
   const server = useServer()
-  const tabs = useTabs()
+  const conn = createMemo(() => server.list.find((item) => ServerConnection.key(item) === props.draft.server))
-  const draft = createMemo(() =>
+  const directory = () => props.draft.directory
-    tabs.store.find((tab): tab is DraftTab => tab.type === "draft" && tab.draftID === props.draftID),
+  const serverKey = () => props.draft.server
-  )
-
-  createEffect(() => {
-    const current = draft()
-    if (current && current.server !== server.key) server.setActive(current.server)
-  })
-
-  // Key on the directory so retargeting the draft's project re-instantiates the
-  // SDK/data providers for the new directory while keeping the same draft id.
-  const directory = () => draft()?.directory
 
   return (
-    <Show when={directory()} keyed>
+    <ServerSDKProvider server={conn}>
-      {(dir) => (
+      <ServerSyncProvider server={conn}>
-        <SDKProvider directory={dir}>
+        <TargetServerScopedProviders directory={directory}>
-          <DirectoryDataProvider directory={dir} draftID={props.draftID}>
+          <SDKProvider directory={directory}>
-            <DraftProviders>
+            <DirectoryDataProvider directory={directory} server={serverKey}>
-              <NewSession />
+              <DraftProviders>
-            </DraftProviders>
+                <NewSession />
-          </DirectoryDataProvider>
+              </DraftProviders>
-        </SDKProvider>
+            </DirectoryDataProvider>
-      )}
+          </SDKProvider>
-    </Show>
+        </TargetServerScopedProviders>
+      </ServerSyncProvider>
+    </ServerSDKProvider>
   )
 }
 
@@ -171,24 +289,62 @@ function BodyDesignClass() {
   return null
 }
 
-function AppShellProviders(props: ParentProps) {
+// Server-agnostic providers shared across every route. These live in the shared
+// shell (router root) so they stay mounted regardless of the active server/route.
+function SharedProviders(props: ParentProps) {
   return (
-    <SettingsProvider>
+    <>
       <BodyDesignClass />
-      <PermissionProvider>
+      <CommandProvider>
-        <LayoutProvider>
+        <HighlightsProvider>{props.children}</HighlightsProvider>
-          <NotificationProvider>
+      </CommandProvider>
-            <ModelsProvider>
+    </>
-              <CommandProvider>
+  )
-                <HighlightsProvider>
+}
-                  <Layout>{props.children}</Layout>
+
-                </HighlightsProvider>
+// Server-scoped providers shared by the legacy shell and the top-level new shell.
-              </CommandProvider>
+type ServerScopedShellProps = ParentProps<{
-            </ModelsProvider>
+  directory?: () => string | undefined
-          </NotificationProvider>
+  sessionID?: () => string | undefined
-        </LayoutProvider>
+}>
-      </PermissionProvider>
+
-    </SettingsProvider>
+function ServerScopedProviders(props: ServerScopedShellProps) {
+  return (
+    <PermissionProvider directory={props.directory}>
+      <LayoutProvider>
+        <NotificationProvider directory={props.directory} sessionID={props.sessionID}>
+          <ModelsProvider directory={props.directory}>{props.children}</ModelsProvider>
+        </NotificationProvider>
+      </LayoutProvider>
+    </PermissionProvider>
+  )
+}
+
+function LegacyServerScopedShell(props: ServerScopedShellProps) {
+  return (
+    <ServerScopedProviders directory={props.directory} sessionID={props.sessionID}>
+      <LegacyLayout>{props.children}</LegacyLayout>
+    </ServerScopedProviders>
+  )
+}
+
+function NewAppLayout(props: ParentProps) {
+  return (
+    <SelectedServerProviders>
+      <ServerScopedProviders>
+        <NewLayout>{props.children}</NewLayout>
+      </ServerScopedProviders>
+    </SelectedServerProviders>
+  )
+}
+
+function TargetServerScopedProviders(props: ServerScopedShellProps) {
+  return (
+    <PermissionProvider directory={props.directory}>
+      <NotificationProvider directory={props.directory} sessionID={props.sessionID}>
+        <ModelsProvider directory={props.directory}>{props.children}</ModelsProvider>
+      </NotificationProvider>
+    </PermissionProvider>
   )
 }
 
@@ -216,17 +372,6 @@ function DraftProviders(props: ParentProps) {
   )
 }
 
-function RouterRoot(props: ParentProps<{ appChildren?: JSX.Element }>) {
-  return (
-    <AppShellProviders>
-      {/*<Suspense fallback={<Loading />}>*/}
-      {props.appChildren}
-      {props.children}
-      {/*</Suspense>*/}
-    </AppShellProviders>
-  )
-}
-
 export function AppBaseProviders(props: ParentProps<{ locale?: Locale }>) {
   return (
     <MetaProvider>
@@ -385,6 +530,18 @@ export function AppInterface(props: {
   router?: Component<BaseRouterProps>
   disableHealthCheck?: boolean
 }) {
+  // The visual new layout lives in the router root so it remains mounted across
+  // route changes. Draft and session routes override only their server-bound data
+  // providers beneath it.
+  const ServerShell = (shellProps: ParentProps) => (
+    <QueryProvider>
+      <SharedProviders>
+        {props.children}
+        {shellProps.children}
+      </SharedProviders>
+    </QueryProvider>
+  )
+
   return (
     <ServerProvider
       defaultServer={props.defaultServer}
@@ -392,32 +549,57 @@ export function AppInterface(props: {
       servers={props.servers}
     >
       <GlobalProvider>
-        <ConnectionGate disableHealthCheck={props.disableHealthCheck}>
+        <SettingsProvider>
-          <Dynamic
+          <ConnectionGate disableHealthCheck={props.disableHealthCheck}>
-            component={props.router ?? Router}
+            <Show when={useSettings().general.newLayoutDesigns().toString()} keyed>
-            root={(routerProps) => (
+              <Dynamic
-              <TabsProvider>
+                component={props.router ?? Router}
-                <ServerKey>
+                root={(routerProps) => (
-                  <QueryProvider>
+                  <TabsProvider>
-                    <ServerSDKProvider>
+                    <ServerShell>
-                      <ServerSyncProvider>
+                      <Show when={useSettings().general.newLayoutDesigns()} fallback={routerProps.children}>
-                        <RouterRoot appChildren={props.children}>{routerProps.children}</RouterRoot>
+                        <NewAppLayout>{routerProps.children}</NewAppLayout>
-                      </ServerSyncProvider>
+                      </Show>
-                    </ServerSDKProvider>
+                    </ServerShell>
-                  </QueryProvider>
+                  </TabsProvider>
-                </ServerKey>
+                )}
-              </TabsProvider>
+              >
-            )}
+                <Routes />
-          >
+              </Dynamic>
-            <Route path="/" component={HomeRoute} />
+            </Show>
-            <Route path="/new-session" component={DraftRoute} />
+          </ConnectionGate>
-            <Route path="/:dir" component={DirectoryLayout}>
+        </SettingsProvider>
-              <Route path="/" component={() => <Navigate href="session" />} />
-              <Route path="/session/:id?" component={SessionRoute} />
-            </Route>
-          </Dynamic>
-        </ConnectionGate>
       </GlobalProvider>
     </ServerProvider>
   )
 }
+
+function Routes() {
+  const settings = useSettings()
+
+  return (
+    <>
+      <Route component={LegacyServerLayout}>
+        <Show when={!settings.general.newLayoutDesigns()}>{<Route path="/" component={LegacyHome} />}</Show>
+        <Route path="/:dir" component={DirectoryLayout}>
+          <Route path="/" component={() => <Navigate href="session" />} />
+          <Route path="/session/:id?" component={SessionRoute} />
+        </Route>
+      </Route>
+      <Show when={settings.general.newLayoutDesigns()}>
+        <Route path="/" component={NewHome} />
+        <Route
+          path="/:dir/session/:id"
+          component={() => {
+            const server = useServer()
+            const { id } = useParams()
+
+            return <Navigate href={`/server/${server.key}/session/${id}`} />
+          }}
+        />
+      </Show>
+      <Route path="/new-session" component={DraftRoute} />
+      <Route path="/server/:serverKey/session/:id" component={TargetSessionRoute} />
+    </>
+  )
+}

packages/app/src/components/command-tooltip-keybind.test.ts

@@ -0,0 +1,22 @@
+import { describe, expect, test } from "bun:test"
+import { newTabTooltipKeybind, reviewTooltipKeybind } from "./command-tooltip-keybind"
+
+describe("command tooltip keybinds", () => {
+  test("keeps localized review shortcut modifiers", () => {
+    const command = {
+      keybind: () => "Ctrl+Maj+R",
+      keybindParts: () => ["Ctrl", "Maj", "R"],
+    }
+
+    expect(reviewTooltipKeybind(command, (key) => key)).toEqual(["Ctrl", "Maj", "R"])
+  })
+
+  test("uses the configured new-tab shortcut", () => {
+    const command = {
+      keybind: () => "Alt+N",
+      keybindParts: () => ["Alt", "N"],
+    }
+
+    expect(newTabTooltipKeybind(command, (key) => key)).toEqual(["Alt", "N"])
+  })
+})

packages/app/src/components/command-tooltip-keybind.ts

@@ -0,0 +1,11 @@
+type CommandKeybind = {
+  keybindParts: (id: string) => string[]
+}
+
+export function reviewTooltipKeybind(command: CommandKeybind, _translate?: (key: string) => string) {
+  return command.keybindParts("review.toggle")
+}
+
+export function newTabTooltipKeybind(command: CommandKeybind, _translate?: (key: string) => string) {
+  return command.keybindParts("tab.new")
+}

packages/app/src/components/debug-bar.tsx

@@ -363,7 +363,7 @@ export function DebugBar() {
   return (
     <aside
       aria-label={language.t("debugBar.ariaLabel")}
-      class="pointer-events-auto fixed bottom-3 right-3 z-50 w-[308px] max-w-[calc(100vw-1.5rem)] overflow-hidden rounded-xl border border-border-base bg-surface-raised-stronger-non-alpha p-0.5 text-text-strong shadow-[var(--shadow-lg-border-base)] sm:bottom-4 sm:right-4 sm:w-[324px]"
+      class="pointer-events-auto fixed bottom-3 right-3 z-50 hidden w-[308px] max-w-[calc(100vw-1.5rem)] overflow-hidden rounded-xl border border-border-base bg-surface-raised-stronger-non-alpha p-0.5 text-text-strong shadow-[var(--shadow-lg-border-base)] md:block sm:bottom-4 sm:right-4 sm:w-[324px]"
     >
       <div class="grid grid-cols-5 gap-px font-mono">
         <Cell

packages/app/src/components/dialog-connect-provider.tsx

@@ -9,7 +9,7 @@ import { ProviderIcon } from "@opencode-ai/ui/provider-icon"
 import { Spinner } from "@opencode-ai/ui/spinner"
 import { TextField } from "@opencode-ai/ui/text-field"
 import { showToast } from "@/utils/toast"
-import { createEffect, createMemo, createResource, Match, onCleanup, onMount, Switch } from "solid-js"
+import { type Accessor, createEffect, createMemo, createResource, Match, onCleanup, onMount, Switch } from "solid-js"
 import { createStore, produce } from "solid-js/store"
 import { Link } from "@/components/link"
 import { useServerSDK } from "@/context/server-sdk"
@@ -17,16 +17,16 @@ import { useServerSync } from "@/context/server-sync"
 import { useLanguage } from "@/context/language"
 import { useProviders } from "@/hooks/use-providers"
 
-export function DialogConnectProvider(props: { provider: string }) {
+export function DialogConnectProvider(props: { provider: string; directory?: Accessor<string | undefined> }) {
   const dialog = useDialog()
   const serverSync = useServerSync()
   const serverSDK = useServerSDK()
   const language = useLanguage()
-  const providers = useProviders()
+  const providers = useProviders(props.directory)
 
   const all = () => {
     void import("./dialog-select-provider").then((x) => {
-      dialog.show(() => <x.DialogSelectProvider />)
+      dialog.show(() => <x.DialogSelectProvider directory={props.directory} />)
     })
   }
 
@@ -41,7 +41,7 @@ export function DialogConnectProvider(props: { provider: string }) {
   })
 
   const provider = createMemo(
-    () => providers.all().get(props.provider) ?? serverSync.data.provider.all.get(props.provider)!,
+    () => providers.all().get(props.provider) ?? serverSync().data.provider.all.get(props.provider)!,
   )
   const fallback = createMemo<ProviderAuthMethod[]>(() => [
     {
@@ -52,16 +52,16 @@ export function DialogConnectProvider(props: { provider: string }) {
   const [auth] = createResource(
     () => props.provider,
     async () => {
-      const cached = serverSync.data.provider_auth[props.provider]
+      const cached = serverSync().data.provider_auth[props.provider]
       if (cached) return cached
-      const res = await serverSDK.client.provider.auth()
+      const res = await serverSDK().client.provider.auth()
       if (!alive.value) return fallback()
-      serverSync.set("provider_auth", res.data ?? {})
+      serverSync().set("provider_auth", res.data ?? {})
       return res.data?.[props.provider] ?? fallback()
     },
   )
-  const loading = createMemo(() => auth.loading && !serverSync.data.provider_auth[props.provider])
+  const loading = createMemo(() => auth.loading && !serverSync().data.provider_auth[props.provider])
-  const methods = createMemo(() => auth.latest ?? serverSync.data.provider_auth[props.provider] ?? fallback())
+  const methods = createMemo(() => auth.latest ?? serverSync().data.provider_auth[props.provider] ?? fallback())
   const [store, setStore] = createStore({
     methodIndex: undefined as undefined | number,
     authorization: undefined as undefined | ProviderAuthAuthorization,
@@ -158,8 +158,8 @@ export function DialogConnectProvider(props: { provider: string }) {
       }
       dispatch({ type: "auth.pending" })
       const start = Date.now()
-      await serverSDK.client.provider.oauth
+      await serverSDK()
-        .authorize(
+        .client.provider.oauth.authorize(
           {
             providerID: props.provider,
             method: index,
@@ -331,7 +331,7 @@ export function DialogConnectProvider(props: { provider: string }) {
   })
 
   async function complete() {
-    await serverSDK.client.global.dispose()
+    await serverSDK().client.global.dispose()
     dialog.close()
     showToast({
       variant: "success",
@@ -409,7 +409,7 @@ export function DialogConnectProvider(props: { provider: string }) {
       }
 
       setFormStore("error", undefined)
-      await serverSDK.client.auth.set({
+      await serverSDK().client.auth.set({
         providerID: props.provider,
         auth: {
           type: "api",
@@ -480,8 +480,8 @@ export function DialogConnectProvider(props: { provider: string }) {
       }
 
       setFormStore("error", undefined)
-      const result = await serverSDK.client.provider.oauth
+      const result = await serverSDK()
-        .callback({
+        .client.provider.oauth.callback({
           providerID: props.provider,
           method: store.methodIndex,
           code,
@@ -533,8 +533,8 @@ export function DialogConnectProvider(props: { provider: string }) {
 
     onMount(() => {
       void (async () => {
-        const result = await serverSDK.client.provider.oauth
+        const result = await serverSDK()
-          .callback({
+          .client.provider.oauth.callback({
             providerID: props.provider,
             method: store.methodIndex,
           })

packages/app/src/components/dialog-custom-provider.tsx

@@ -6,7 +6,7 @@ import { ProviderIcon } from "@opencode-ai/ui/provider-icon"
 import { useMutation } from "@tanstack/solid-query"
 import { TextField } from "@opencode-ai/ui/text-field"
 import { showToast } from "@/utils/toast"
-import { batch, For } from "solid-js"
+import { type Accessor, batch, For } from "solid-js"
 import { createStore, produce } from "solid-js/store"
 import { Link } from "@/components/link"
 import { useServerSDK } from "@/context/server-sdk"
@@ -17,6 +17,7 @@ import { DialogSelectProvider } from "./dialog-select-provider"
 
 type Props = {
   back?: "providers" | "close"
+  directory?: Accessor<string | undefined>
 }
 
 export function DialogCustomProvider(props: Props) {
@@ -40,7 +41,7 @@ export function DialogCustomProvider(props: Props) {
       dialog.close()
       return
     }
-    dialog.show(() => <DialogSelectProvider />)
+    dialog.show(() => <DialogSelectProvider directory={props.directory} />)
   }
 
   const addModel = () => {
@@ -105,8 +106,8 @@ export function DialogCustomProvider(props: Props) {
     const output = validateCustomProvider({
       form,
       t: language.t,
-      disabledProviders: serverSync.data.config.disabled_providers ?? [],
+      disabledProviders: serverSync().data.config.disabled_providers ?? [],
-      existingProviderIDs: new Set(serverSync.data.provider.all.keys()),
+      existingProviderIDs: new Set(serverSync().data.provider.all.keys()),
     })
     batch(() => {
       setForm("err", output.err)
@@ -118,11 +119,11 @@ export function DialogCustomProvider(props: Props) {
 
   const saveMutation = useMutation(() => ({
     mutationFn: async (result: NonNullable<ReturnType<typeof validate>>) => {
-      const disabledProviders = serverSync.data.config.disabled_providers ?? []
+      const disabledProviders = serverSync().data.config.disabled_providers ?? []
       const nextDisabled = disabledProviders.filter((id) => id !== result.providerID)
 
       if (result.key) {
-        await serverSDK.client.auth.set({
+        await serverSDK().client.auth.set({
           providerID: result.providerID,
           auth: {
             type: "api",
@@ -131,7 +132,7 @@ export function DialogCustomProvider(props: Props) {
         })
       }
 
-      await serverSync.updateConfig({
+      await serverSync().updateConfig({
         provider: { [result.providerID]: result.config },
         disabled_providers: nextDisabled,
       })

packages/app/src/components/dialog-edit-project.tsx

@@ -20,7 +20,7 @@ export function DialogEditProject(props: { project: LocalProject; server: Server
   const dialog = useDialog()
   const global = useGlobal()
   const language = useLanguage()
-  const serverCtx = createMemo(() => global.createServerCtx(props.server))
+  const serverCtx = createMemo(() => global.ensureServerCtx(props.server))
   const serverSDK = () => serverCtx().sdk
   const serverSync = () => serverCtx().sync
 

packages/app/src/components/dialog-fork.tsx

@@ -35,13 +35,13 @@ export const DialogFork: Component = () => {
     const sessionID = params.id
     if (!sessionID) return []
 
-    const msgs = sync.data.message[sessionID] ?? []
+    const msgs = sync().data.message[sessionID] ?? []
     const result: ForkableMessage[] = []
 
     for (const message of msgs) {
       if (message.role !== "user") continue
 
-      const parts = sync.data.part[message.id] ?? []
+      const parts = sync().data.part[message.id] ?? []
       const textPart = parts.find((x): x is SDKTextPart => x.type === "text" && !x.synthetic && !x.ignored)
       if (!textPart) continue
 
@@ -61,15 +61,15 @@ export const DialogFork: Component = () => {
     const sessionID = params.id
     if (!sessionID) return
 
-    const parts = sync.data.part[item.id] ?? []
+    const parts = sync().data.part[item.id] ?? []
     const restored = extractPromptFromParts(parts, {
-      directory: sdk.directory,
+      directory: sdk().directory,
       attachmentName: language.t("common.attachment"),
     })
-    const dir = base64Encode(sdk.directory)
+    const dir = base64Encode(sdk().directory)
 
-    sdk.client.session
+    sdk()
-      .fork({ sessionID, messageID: item.id })
+      .client.session.fork({ sessionID, messageID: item.id })
       .then((forked) => {
         if (!forked.data) {
           showToast({ title: language.t("common.requestFailed") })

packages/app/src/components/dialog-manage-models.tsx

@@ -9,14 +9,16 @@ import { popularProviders } from "@/hooks/use-providers"
 import { useLanguage } from "@/context/language"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { DialogSelectProvider } from "./dialog-select-provider"
+import { decode64 } from "@/utils/base64"
 
 export const DialogManageModels: Component = () => {
   const local = useLocal()
   const language = useLanguage()
   const dialog = useDialog()
+  const directory = () => decode64(local.slug())
 
   const handleConnectProvider = () => {
-    dialog.show(() => <DialogSelectProvider />)
+    dialog.show(() => <DialogSelectProvider directory={directory} />)
   }
   const providerRank = (id: string) => popularProviders.indexOf(id)
   const providerList = (providerID: string) => local.model.list().filter((x) => x.provider.id === providerID)

packages/app/src/components/dialog-select-directory-v2.css

@@ -0,0 +1,107 @@
+.directory-picker-v2-body {
+  display: flex;
+  min-height: 0;
+  flex: 1;
+  flex-direction: column;
+  gap: 12px;
+  padding: 2px 16px 0;
+}
+
+.directory-picker-v2-path {
+  position: relative;
+  z-index: 10;
+  display: flex;
+  gap: 8px;
+}
+
+.directory-picker-v2-actions {
+  display: flex;
+  flex-shrink: 0;
+  gap: 2px;
+}
+
+.directory-picker-v2-suggestions {
+  position: absolute;
+  z-index: 20;
+  top: 36px;
+  right: 0;
+  left: 0;
+  display: flex;
+  flex-direction: column;
+  padding: 4px;
+  border: 1px solid var(--v2-border-border-base);
+  border-radius: 6px;
+  background: var(--v2-background-bg-layer-02);
+  box-shadow: var(--v2-elevation-overlay);
+}
+
+.directory-picker-v2-suggestions button {
+  overflow: hidden;
+  padding: 6px 8px;
+  border-radius: 4px;
+  color: var(--v2-text-text-muted);
+  font-size: 12px;
+  text-align: left;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.directory-picker-v2-suggestions button:hover,
+.directory-picker-v2-suggestions button[data-active] {
+  color: var(--v2-text-text-base);
+  background: var(--v2-overlay-simple-overlay-hover);
+}
+
+.directory-picker-v2-browser {
+  position: relative;
+  z-index: 0;
+  isolation: isolate;
+  min-height: 0;
+  flex: 1;
+  overflow: auto;
+  border: 1px solid var(--v2-border-border-base);
+  border-radius: 6px;
+  background: transparent;
+}
+
+.directory-picker-v2-tree {
+  display: block;
+  width: 100%;
+  height: 100%;
+  --trees-bg-override: transparent;
+  --trees-fg-override: var(--v2-text-text-base);
+  --trees-fg-muted-override: var(--v2-text-text-muted);
+  --trees-bg-muted-override: transparent;
+  --trees-selected-bg-override: transparent;
+  --trees-selected-fg-override: var(--v2-text-text-base);
+  --trees-selected-focused-border-color-override: transparent;
+  --trees-focus-ring-color-override: transparent;
+  --trees-focus-ring-width-override: 0px;
+  --trees-focus-ring-offset-override: 0px;
+  --trees-border-color-override: var(--v2-border-border-base);
+  --trees-font-family-override: var(--font-family-sans);
+  --trees-font-size-override: 12px;
+  --trees-item-height: 24px;
+  --trees-border-radius-override: 4px;
+}
+
+.directory-picker-v2-state {
+  position: absolute;
+  z-index: 1;
+  inset: 0;
+  display: grid;
+  place-items: center;
+  color: var(--v2-text-text-muted);
+  font-size: 12px;
+  pointer-events: none;
+}
+
+.directory-picker-v2-selection {
+  overflow: hidden;
+  flex-shrink: 0;
+  color: var(--v2-text-text-muted);
+  font-size: 12px;
+  line-height: 16px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}

packages/app/src/components/dialog-select-directory-v2.tsx

@@ -0,0 +1,363 @@
+import "@pierre/trees/web-components"
+import { FileTree } from "@pierre/trees"
+import { Dialog, DialogFooter } from "@opencode-ai/ui/v2/dialog-v2"
+import { ButtonV2 } from "@opencode-ai/ui/v2/button-v2"
+import { TextInputV2 } from "@opencode-ai/ui/v2/text-input-v2"
+import { useDialog } from "@opencode-ai/ui/context/dialog"
+import { createEffect, createMemo, createResource, createSignal, For, onCleanup, onMount, Show } from "solid-js"
+import { useGlobal } from "@/context/global"
+import { useLanguage } from "@/context/language"
+import { ServerConnection } from "@/context/server"
+import {
+  absoluteTreePath,
+  activeTreeNavigation,
+  advanceTreePreload,
+  nextSuggestionIndex,
+  nextTreeScrollTop,
+  pickerFileSearchQuery,
+  pickerAbsoluteInput,
+  pickerMode,
+  preloadTreeDirectories,
+  cleanPickerInput,
+  createPriorityTaskQueue,
+  createDirectorySearch,
+  currentPickerSuggestions,
+  displayPickerPath,
+  pickerParent,
+  pickerRoot,
+} from "./directory-picker-domain"
+import "./dialog-select-directory-v2.css"
+
+interface DialogSelectDirectoryV2Props {
+  title?: string
+  multiple?: boolean
+  onSelect: (result: string | string[] | null) => void
+  server: ServerConnection.Any
+  mode?: "directory" | "file"
+  start?: string
+}
+
+export function DialogSelectDirectoryV2(props: DialogSelectDirectoryV2Props) {
+  const global = useGlobal()
+  const { sync, sdk } = global.ensureServerCtx(props.server)
+  const dialog = useDialog()
+  const language = useLanguage()
+  const policy = pickerMode(props.mode ?? "directory", props.start)
+  const action = {
+    file: language.t("dialog.directory.action.selectFile"),
+    directory: language.t("dialog.directory.action.selectFolder"),
+  }
+  const [root, setRoot] = createSignal("")
+  const [input, setInput] = createSignal("")
+  const [selected, setSelected] = createSignal("")
+  const [suggestionsOpen, setSuggestionsOpen] = createSignal(false)
+  const [activeSuggestion, setActiveSuggestion] = createSignal(-1)
+  const [loading, setLoading] = createSignal(false)
+  const [error, setError] = createSignal(false)
+  const [rootValid, setRootValid] = createSignal(false)
+  const listings = new Map<string, Promise<Array<{ name: string; type: "file" | "directory" }> | undefined>>()
+  const loads = createPriorityTaskQueue<Array<{ name: string; type: "file" | "directory" }> | undefined>(3)
+  const advanced = new Set<string>()
+  let tree: FileTree | undefined
+  let container: HTMLDivElement | undefined
+  let pathArea: HTMLDivElement | undefined
+  let navigation = 0
+
+  const missingBase = createMemo(() => !(sync.data.path.home || sync.data.path.directory))
+  const [fallbackPath] = createResource(
+    () => (missingBase() ? true : undefined),
+    () =>
+      sdk.client.path
+        .get()
+        .then((result) => result.data)
+        .catch(() => undefined),
+    { initialValue: undefined },
+  )
+  const home = createMemo(() => sync.data.path.home || fallbackPath()?.home || "")
+  const start = createMemo(
+    () =>
+      props.start ||
+      sync.data.path.home ||
+      sync.data.path.directory ||
+      fallbackPath()?.home ||
+      fallbackPath()?.directory,
+  )
+  const search = createDirectorySearch({ sdk, home, base: () => root() || start() })
+  const [suggestions] = createResource(input, async (value) => {
+    const typed = cleanPickerInput(value).replace(/\/+$/, "")
+    const current = displayPickerPath(root(), value, home()).replace(/\/+$/, "")
+    if (!typed || typed === current) return { query: value, items: [] }
+    const directories = (await search(value)).map((absolute) => ({ absolute, type: "directory" as const }))
+    if (!policy.includeFiles) return { query: value, items: directories.slice(0, 5) }
+    const files = await sdk.client.find
+      .files({ directory: root(), query: pickerFileSearchQuery(root(), value, home()), type: "file", limit: 20 })
+      .then((result) => result.data ?? [])
+      .catch(() => [])
+    const results = [
+      ...directories,
+      ...files.map((path) => ({ absolute: absoluteTreePath(root(), path), type: "file" as const })),
+    ]
+    return {
+      query: value,
+      items: Array.from(new Map(results.map((result) => [result.absolute, result])).values()).slice(0, 8),
+    }
+  })
+  const currentSuggestions = createMemo(() => currentPickerSuggestions(suggestions(), input()))
+
+  async function load(path: string, generation: number, eager = false) {
+    const key = path.replace(/\/+$/, "")
+    setError(false)
+    const absolute = absoluteTreePath(root(), key)
+    const existing = listings.get(key)
+    if (existing && !eager) loads.promote(`${generation}:${key}`)
+    const request =
+      existing ??
+      loads.schedule(`${generation}:${key}`, eager ? "background" : "user", () => {
+        if (!activeTreeNavigation(generation, navigation)) return Promise.resolve(undefined)
+        return sdk.client.file
+          .list({ directory: absolute, path: "" })
+          .then((result) => result.data ?? [])
+          .catch(() => undefined)
+      })
+    listings.set(key, request)
+    const nodes = await request
+    if (!activeTreeNavigation(generation, navigation)) return false
+    if (!nodes) {
+      listings.delete(key)
+      if (!key) setError(true)
+      return false
+    }
+    tree?.batch(policy.entries(key, nodes).map((item) => ({ type: "add", path: item })))
+    if (!eager && advanceTreePreload(advanced, key)) {
+      for (const directory of preloadTreeDirectories(key, nodes)) void load(directory, generation, true)
+    }
+    return true
+  }
+
+  async function navigate(path: string) {
+    const value = policy.navigation(pickerAbsoluteInput(cleanPickerInput(path), home(), root() || start() || home()))
+    if (!value) return
+    const token = ++navigation
+    setLoading(true)
+    setRootValid(false)
+    setSelected("")
+    setSuggestionsOpen(false)
+    setActiveSuggestion(-1)
+    setRoot(value)
+    setInput(displayPickerPath(value, value, home()))
+    listings.clear()
+    advanced.clear()
+    tree?.resetPaths([])
+    const valid = await load("", token)
+    if (!activeTreeNavigation(token, navigation)) return
+    setRootValid(valid)
+    setLoading(false)
+  }
+
+  function complete() {
+    const items = currentSuggestions()
+    const match = items[activeSuggestion()] ?? items[0]
+    if (!match) return
+    const value = displayPickerPath(match.absolute, input(), home())
+    setInput(match.type === "directory" && !value.endsWith("/") ? value + "/" : value)
+    if (match.type === "file") {
+      setSelected(policy.selection(root(), pickerFileSearchQuery(root(), match.absolute, home())) ?? "")
+      setSuggestionsOpen(false)
+      setActiveSuggestion(-1)
+    }
+  }
+
+  function chooseSuggestion(suggestion: { absolute: string; type: "file" | "directory" }) {
+    if (suggestion.type === "directory") {
+      void navigate(suggestion.absolute)
+      return
+    }
+    setInput(displayPickerPath(suggestion.absolute, input(), home()))
+    setSelected(policy.selection(root(), pickerFileSearchQuery(root(), suggestion.absolute, home())) ?? "")
+    setSuggestionsOpen(false)
+    setActiveSuggestion(-1)
+  }
+
+  function moveSuggestion(delta: -1 | 1) {
+    setSuggestionsOpen(true)
+    setActiveSuggestion((current) => nextSuggestionIndex(current, delta, currentSuggestions().length))
+  }
+
+  function activeSuggestionValue() {
+    const items = currentSuggestions()
+    return items[activeSuggestion()] ?? items[0]
+  }
+
+  const keyActions: Partial<Record<string, () => void>> = {
+    ArrowDown: () => moveSuggestion(1),
+    ArrowUp: () => moveSuggestion(-1),
+    Enter: () => {
+      const suggestion = activeSuggestionValue()
+      if (suggestion) chooseSuggestion(suggestion)
+      if (!suggestion) void navigate(input())
+    },
+    Tab: complete,
+  }
+
+  function handleInputKey(event: KeyboardEvent) {
+    const action = keyActions[event.key]
+    if (!action) return
+    if (event.key === "Tab" && event.shiftKey) return
+    event.preventDefault()
+    action()
+  }
+
+  function resolve() {
+    const path = policy.result(root(), selected(), rootValid())
+    if (!path) return
+    props.onSelect(props.multiple ? [path] : path)
+    dialog.close()
+  }
+
+  onMount(() => {
+    const closeSuggestions = (event: PointerEvent) => {
+      if (pathArea?.contains(event.target as Node)) return
+      setSuggestionsOpen(false)
+      setActiveSuggestion(-1)
+    }
+    document.addEventListener("pointerdown", closeSuggestions)
+    onCleanup(() => document.removeEventListener("pointerdown", closeSuggestions))
+    tree = new FileTree({
+      paths: [],
+      flattenEmptyDirectories: false,
+      initialExpansion: "closed",
+      stickyFolders: true,
+      unsafeCSS: `
+        button[data-type="item"] {
+          background: transparent !important;
+          box-shadow: none !important;
+        }
+        button[data-type="item"]:hover {
+          background: var(--v2-overlay-simple-overlay-hover) !important;
+        }
+        button[data-type="item"]:focus-visible {
+          outline: none !important;
+          box-shadow: none !important;
+        }
+        [data-file-tree-virtualized-scroll] {
+          overscroll-behavior: contain;
+          scrollbar-width: thin;
+        }
+      `,
+      onExpansionChange(change) {
+        if (change.expanded) void load(change.path, navigation)
+      },
+      onSelectionChange(paths) {
+        const path = paths.at(-1)
+        setSelected(path ? (policy.selection(root(), path) ?? "") : "")
+      },
+    })
+    if (!container) return
+    tree.render({ containerWrapper: container })
+    tree.getFileTreeContainer()?.classList.add("directory-picker-v2-tree")
+  })
+
+  createEffect(() => {
+    const path = start()
+    if (!path || root()) return
+    void navigate(path)
+  })
+
+  onCleanup(() => tree?.cleanUp())
+
+  return (
+    <Dialog title={props.title ?? language.t("command.project.open")} size="large" class="directory-picker-v2">
+      <div class="directory-picker-v2-body">
+        <div class="directory-picker-v2-path" ref={pathArea}>
+          <TextInputV2
+            value={input()}
+            autofocus
+            autocomplete="off"
+            spellcheck={false}
+            class="!w-full"
+            onInput={(event) => {
+              setInput(cleanPickerInput(event.currentTarget.value))
+              setSelected("")
+              setSuggestionsOpen(true)
+              setActiveSuggestion(-1)
+            }}
+            role="combobox"
+            aria-autocomplete="list"
+            aria-expanded={suggestionsOpen()}
+            aria-controls="directory-picker-v2-suggestions"
+            aria-activedescendant={
+              activeSuggestion() >= 0 ? `directory-picker-v2-suggestion-${activeSuggestion()}` : undefined
+            }
+            onKeyDown={handleInputKey}
+          />
+          <div class="directory-picker-v2-actions">
+            <ButtonV2 size="small" variant="ghost" onClick={() => void navigate(home())}>
+              ~
+            </ButtonV2>
+            <ButtonV2 size="small" variant="ghost" onClick={() => void navigate(pickerRoot(root()) || root())}>
+              {language.t("dialog.directory.root")}
+            </ButtonV2>
+            <ButtonV2 size="small" variant="ghost" onClick={() => void navigate(pickerParent(root()))}>
+              {language.t("dialog.directory.parent")}
+            </ButtonV2>
+          </div>
+          <Show when={suggestionsOpen() && currentSuggestions().length > 0}>
+            <div id="directory-picker-v2-suggestions" role="listbox" class="directory-picker-v2-suggestions">
+              <For each={currentSuggestions()}>
+                {(suggestion, index) => (
+                  <button
+                    id={`directory-picker-v2-suggestion-${index()}`}
+                    role="option"
+                    aria-selected={index() === activeSuggestion()}
+                    data-active={index() === activeSuggestion() ? "" : undefined}
+                    onPointerMove={() => setActiveSuggestion(index())}
+                    onClick={() => chooseSuggestion(suggestion)}
+                  >
+                    {displayPickerPath(suggestion.absolute, input(), home())}
+                    {suggestion.type === "directory" ? "/" : ""}
+                  </button>
+                )}
+              </For>
+            </div>
+          </Show>
+        </div>
+        <div
+          class="directory-picker-v2-browser"
+          ref={container}
+          onWheel={(event) => {
+            const scroller = tree
+              ?.getFileTreeContainer()
+              ?.shadowRoot?.querySelector<HTMLElement>("[data-file-tree-virtualized-scroll]")
+            if (!scroller) return
+            const next = nextTreeScrollTop(
+              scroller.scrollTop,
+              event.deltaY,
+              scroller.scrollHeight,
+              scroller.clientHeight,
+            )
+            if (next === scroller.scrollTop) return
+            event.preventDefault()
+            scroller.scrollTop = next
+            scroller.dispatchEvent(new Event("scroll"))
+          }}
+        >
+          <Show when={loading()}>
+            <div class="directory-picker-v2-state">{language.t("common.loading")}</div>
+          </Show>
+          <Show when={!loading() && error()}>
+            <div class="directory-picker-v2-state">{language.t("dialog.directory.readError")}</div>
+          </Show>
+        </div>
+        <div class="directory-picker-v2-selection">{policy.result(root(), selected(), rootValid())}</div>
+      </div>
+      <DialogFooter>
+        <ButtonV2 variant="neutral" onClick={() => dialog.close()}>
+          {language.t("common.cancel")}
+        </ButtonV2>
+        <ButtonV2 variant="contrast" disabled={!policy.result(root(), selected(), rootValid())} onClick={resolve}>
+          {action[policy.action]}
+        </ButtonV2>
+      </DialogFooter>
+    </Dialog>
+  )
+}

packages/app/src/components/dialog-select-directory.tsx

@@ -4,12 +4,11 @@ import { FileIcon } from "@opencode-ai/ui/file-icon"
 import { List } from "@opencode-ai/ui/list"
 import type { ListRef } from "@opencode-ai/ui/list"
 import { getDirectory, getFilename } from "@opencode-ai/core/util/path"
-import fuzzysort from "fuzzysort"
 import { createMemo, createResource, createSignal } from "solid-js"
-import { ServerSDK } from "@/context/server-sdk"
 import { useLanguage } from "@/context/language"
 import { ServerConnection } from "@/context/server"
 import { useGlobal } from "@/context/global"
+import { cleanPickerInput, createDirectorySearch, displayPickerPath } from "./directory-picker-domain"
 
 interface DialogSelectDirectoryProps {
   title?: string
@@ -24,89 +23,9 @@ type Row = {
   group: "recent" | "folders"
 }
 
-function cleanInput(value: string) {
-  const first = (value ?? "").split(/\r?\n/)[0] ?? ""
-  return first.replace(/[\u0000-\u001F\u007F]/g, "").trim()
-}
-
-function normalizePath(input: string) {
-  const v = input.replaceAll("\\", "/")
-  if (v.startsWith("//") && !v.startsWith("///")) return "//" + v.slice(2).replace(/\/+/g, "/")
-  return v.replace(/\/+/g, "/")
-}
-
-function normalizeDriveRoot(input: string) {
-  const v = normalizePath(input)
-  if (/^[A-Za-z]:$/.test(v)) return v + "/"
-  return v
-}
-
-function trimTrailing(input: string) {
-  const v = normalizeDriveRoot(input)
-  if (v === "/") return v
-  if (v === "//") return v
-  if (/^[A-Za-z]:\/$/.test(v)) return v
-  return v.replace(/\/+$/, "")
-}
-
-function joinPath(base: string | undefined, rel: string) {
-  const b = trimTrailing(base ?? "")
-  const r = trimTrailing(rel).replace(/^\/+/, "")
-  if (!b) return r
-  if (!r) return b
-  if (b.endsWith("/")) return b + r
-  return b + "/" + r
-}
-
-function rootOf(input: string) {
-  const v = normalizeDriveRoot(input)
-  if (v.startsWith("//")) return "//"
-  if (v.startsWith("/")) return "/"
-  if (/^[A-Za-z]:\//.test(v)) return v.slice(0, 3)
-  return ""
-}
-
-function parentOf(input: string) {
-  const v = trimTrailing(input)
-  if (v === "/") return v
-  if (v === "//") return v
-  if (/^[A-Za-z]:\/$/.test(v)) return v
-
-  const i = v.lastIndexOf("/")
-  if (i <= 0) return "/"
-  if (i === 2 && /^[A-Za-z]:/.test(v)) return v.slice(0, 3)
-  return v.slice(0, i)
-}
-
-function modeOf(input: string) {
-  const raw = normalizeDriveRoot(input.trim())
-  if (!raw) return "relative" as const
-  if (raw.startsWith("~")) return "tilde" as const
-  if (rootOf(raw)) return "absolute" as const
-  return "relative" as const
-}
-
-function tildeOf(absolute: string, home: string) {
-  const full = trimTrailing(absolute)
-  if (!home) return ""
-
-  const hn = trimTrailing(home)
-  const lc = full.toLowerCase()
-  const hc = hn.toLowerCase()
-  if (lc === hc) return "~"
-  if (lc.startsWith(hc + "/")) return "~" + full.slice(hn.length)
-  return ""
-}
-
-function displayPath(path: string, input: string, home: string) {
-  const full = trimTrailing(path)
-  if (modeOf(input) === "absolute") return full
-  return tildeOf(full, home) || full
-}
-
 function toRow(absolute: string, home: string, group: Row["group"]): Row {
-  const full = trimTrailing(absolute)
+  const full = displayPickerPath(absolute, "", "")
-  const tilde = tildeOf(full, home)
+  const tilde = displayPickerPath(full, "~", home)
   const withSlash = (value: string) => {
     if (!value) return ""
     if (value.endsWith("/")) return value
@@ -128,123 +47,9 @@ function uniqueRows(rows: Row[]) {
   })
 }
 
-function useDirectorySearch(args: { sdk: ServerSDK; start: () => string | undefined; home: () => string }) {
-  const cache = new Map<string, Promise<Array<{ name: string; absolute: string }>>>()
-  let current = 0
-
-  const scoped = (value: string) => {
-    const base = args.start()
-    if (!base) return
-
-    const raw = normalizeDriveRoot(value)
-    if (!raw) return { directory: trimTrailing(base), path: "" }
-
-    const h = args.home()
-    if (raw === "~") return { directory: trimTrailing(h || base), path: "" }
-    if (raw.startsWith("~/")) return { directory: trimTrailing(h || base), path: raw.slice(2) }
-
-    const root = rootOf(raw)
-    if (root) return { directory: trimTrailing(root), path: raw.slice(root.length) }
-    return { directory: trimTrailing(base), path: raw }
-  }
-
-  const dirs = async (dir: string) => {
-    const key = trimTrailing(dir)
-    const existing = cache.get(key)
-    if (existing) return existing
-
-    const request = args.sdk.client.file
-      .list({ directory: key, path: "" })
-      .then((x) => x.data ?? [])
-      .catch(() => [])
-      .then((nodes) =>
-        nodes
-          .filter((n) => n.type === "directory")
-          .map((n) => ({
-            name: n.name,
-            absolute: trimTrailing(normalizeDriveRoot(n.absolute)),
-          })),
-      )
-
-    cache.set(key, request)
-    return request
-  }
-
-  const match = async (dir: string, query: string, limit: number) => {
-    const items = await dirs(dir)
-    if (!query) return items.slice(0, limit).map((x) => x.absolute)
-    return fuzzysort.go(query, items, { key: "name", limit }).map((x) => x.obj.absolute)
-  }
-
-  return async (filter: string) => {
-    const token = ++current
-    const active = () => token === current
-
-    const value = cleanInput(filter)
-    const scopedInput = scoped(value)
-    if (!scopedInput) return [] as string[]
-
-    const raw = normalizeDriveRoot(value)
-    const isPath = raw.startsWith("~") || !!rootOf(raw) || raw.includes("/")
-    const query = normalizeDriveRoot(scopedInput.path)
-
-    const find = () =>
-      args.sdk.client.find
-        .files({ directory: scopedInput.directory, query, type: "directory", limit: 50 })
-        .then((x) => x.data ?? [])
-        .catch(() => [])
-
-    if (!isPath) {
-      const results = await find()
-      if (!active()) return []
-      return results.map((rel) => joinPath(scopedInput.directory, rel)).slice(0, 50)
-    }
-
-    const segments = query.replace(/^\/+/, "").split("/")
-    const head = segments.slice(0, segments.length - 1).filter((x) => x && x !== ".")
-    const tail = segments[segments.length - 1] ?? ""
-
-    const cap = 12
-    const branch = 4
-    let paths = [scopedInput.directory]
-    for (const part of head) {
-      if (!active()) return []
-      if (part === "..") {
-        paths = paths.map(parentOf)
-        continue
-      }
-
-      const next = (await Promise.all(paths.map((p) => match(p, part, branch)))).flat()
-      if (!active()) return []
-      paths = Array.from(new Set(next)).slice(0, cap)
-      if (paths.length === 0) return [] as string[]
-    }
-
-    const out = (await Promise.all(paths.map((p) => match(p, tail, 50)))).flat()
-    if (!active()) return []
-    const deduped = Array.from(new Set(out))
-    const base = raw.startsWith("~") ? trimTrailing(scopedInput.directory) : ""
-    const expand = !raw.endsWith("/")
-    if (!expand || !tail) {
-      const items = base ? Array.from(new Set([base, ...deduped])) : deduped
-      return items.slice(0, 50)
-    }
-
-    const needle = tail.toLowerCase()
-    const exact = deduped.filter((p) => getFilename(p).toLowerCase() === needle)
-    const target = exact[0]
-    if (!target) return deduped.slice(0, 50)
-
-    const children = await match(target, "", 30)
-    if (!active()) return []
-    const items = Array.from(new Set([...deduped, ...children]))
-    return (base ? Array.from(new Set([base, ...items])) : items).slice(0, 50)
-  }
-}
-
 export function DialogSelectDirectory(props: DialogSelectDirectoryProps) {
   const global = useGlobal()
-  const { sync, sdk, ...serverCtx } = global.createServerCtx(props.server)
+  const { sync, sdk, ...serverCtx } = global.ensureServerCtx(props.server)
   const dialog = useDialog()
   const language = useLanguage()
 
@@ -268,10 +73,10 @@ export function DialogSelectDirectory(props: DialogSelectDirectoryProps) {
     () => sync.data.path.home || sync.data.path.directory || fallbackPath()?.home || fallbackPath()?.directory,
   )
 
-  const directories = useDirectorySearch({
+  const directories = createDirectorySearch({
     sdk,
     home,
-    start,
+    base: start,
   })
 
   const recentProjects = createMemo(() => {
@@ -336,7 +141,7 @@ export function DialogSelectDirectory(props: DialogSelectDirectoryProps) {
           group.category === "recent" ? language.t("home.recentProjects") : language.t("command.project.open")
         }
         ref={(r) => (list = r)}
-        onFilter={(value) => setFilter(cleanInput(value))}
+        onFilter={(value) => setFilter(cleanPickerInput(value))}
         onKeyEvent={(e, item) => {
           if (e.key !== "Tab") return
           if (e.shiftKey) return
@@ -345,7 +150,7 @@ export function DialogSelectDirectory(props: DialogSelectDirectoryProps) {
           e.preventDefault()
           e.stopPropagation()
 
-          const value = displayPath(item.absolute, filter(), home())
+          const value = displayPickerPath(item.absolute, filter(), home())
           list?.setFilter(value.endsWith("/") ? value : value + "/")
         }}
         onSelect={(path) => {
@@ -354,7 +159,7 @@ export function DialogSelectDirectory(props: DialogSelectDirectoryProps) {
         }}
       >
         {(item) => {
-          const path = displayPath(item.absolute, filter(), home())
+          const path = displayPickerPath(item.absolute, filter(), home())
           if (path === "~") {
             return (
               <div class="w-full flex items-center justify-between rounded-md">

packages/app/src/components/dialog-select-file.tsx

@@ -7,18 +7,25 @@ import { List } from "@opencode-ai/ui/list"
 import { base64Encode } from "@opencode-ai/core/util/encode"
 import { getDirectory, getFilename } from "@opencode-ai/core/util/path"
 import { useNavigate } from "@solidjs/router"
-import { createMemo, createSignal, Match, onCleanup, Show, Switch } from "solid-js"
+import { createMemo, createSignal, lazy, Match, onCleanup, Show, Switch } from "solid-js"
 import { formatKeybind, useCommand, type CommandOption } from "@/context/command"
-import { useServerSDK } from "@/context/server-sdk"
+import { useServerSDK, type ServerSDK } from "@/context/server-sdk"
 import { useServerSync } from "@/context/server-sync"
 import { useLayout } from "@/context/layout"
 import { useFile } from "@/context/file"
 import { useLanguage } from "@/context/language"
+import { usePlatform } from "@/context/platform"
+import { useServer } from "@/context/server"
+import { useSettings } from "@/context/settings"
 import { useSessionLayout } from "@/pages/session/session-layout"
 import { createSessionTabs } from "@/pages/session/helpers"
 import { decode64 } from "@/utils/base64"
 import { getRelativeTime } from "@/utils/time"
 
+const DialogSelectFileV2 = lazy(() =>
+  import("./dialog-select-directory-v2").then((module) => ({ default: module.DialogSelectDirectoryV2 })),
+)
+
 type EntryType = "command" | "file" | "session"
 
 type Entry = {
@@ -175,7 +182,7 @@ function createFileEntries(props: {
 function createSessionEntries(props: {
   workspaces: () => string[]
   label: (directory: string) => string
-  serverSDK: ReturnType<typeof useServerSDK>
+  serverSDK: ServerSDK
   language: ReturnType<typeof useLanguage>
 }) {
   const state: {
@@ -264,6 +271,9 @@ function createSessionEntries(props: {
 export function DialogSelectFile(props: { mode?: DialogSelectFileMode; onOpenFile?: (path: string) => void }) {
   const command = useCommand()
   const language = useLanguage()
+  const platform = usePlatform()
+  const server = useServer()
+  const settings = useSettings()
   const layout = useLayout()
   const file = useFile()
   const dialog = useDialog()
@@ -292,21 +302,21 @@ export function DialogSelectFile(props: { mode?: DialogSelectFileMode; onOpenFil
     if (directory && !dirs.includes(directory)) return [...dirs, directory]
     return dirs
   })
-  const homedir = createMemo(() => serverSync.data.path.home)
+  const homedir = createMemo(() => serverSync().data.path.home)
   const label = (directory: string) => {
     const current = project()
     const kind =
       current && directory === current.worktree
         ? language.t("workspace.type.local")
         : language.t("workspace.type.sandbox")
-    const [store] = serverSync.child(directory, { bootstrap: false })
+    const [store] = serverSync().child(directory, { bootstrap: false })
     const home = homedir()
     const path = home ? directory.replace(home, "~") : directory
     const name = store.vcs?.branch ?? getFilename(directory)
     return `${kind} : ${name || path}`
   }
 
-  const { sessions } = createSessionEntries({ workspaces, label, serverSDK, language })
+  const { sessions } = createSessionEntries({ workspaces, label, serverSDK: serverSDK(), language })
 
   const items = async (text: string) => {
     const query = text.trim()
@@ -383,6 +393,21 @@ export function DialogSelectFile(props: { mode?: DialogSelectFileMode; onOpenFil
     state.cleanup?.()
   })
 
+  if (filesOnly() && platform.platform === "desktop" && settings.general.newLayoutDesigns() && server.current) {
+    return (
+      <DialogSelectFileV2
+        server={server.current}
+        mode="file"
+        start={projectDirectory()}
+        title={language.t("session.header.searchFiles")}
+        onSelect={(result) => {
+          if (typeof result !== "string") return
+          open(result)
+        }}
+      />
+    )
+  }
+
   return (
     <Dialog class="pt-3 pb-0 !max-h-[480px]" transition>
       <List

packages/app/src/components/dialog-select-mcp.tsx

@@ -19,7 +19,7 @@ export const DialogSelectMcp: Component = () => {
   const language = useLanguage()
 
   const items = createMemo(() =>
-    Object.entries(sync.data.mcp ?? {})
+    Object.entries(sync().data.mcp ?? {})
       .map(([name, status]) => ({ name, status: status.status }))
       .sort((a, b) => a.name.localeCompare(b.name)),
   )
@@ -48,7 +48,7 @@ export const DialogSelectMcp: Component = () => {
         }}
       >
         {(i) => {
-          const mcpStatus = () => sync.data.mcp[i.name]
+          const mcpStatus = () => sync().data.mcp[i.name]
           const status = () => mcpStatus()?.status
           const statusLabel = () => {
             const key = status() ? statusLabels[status() as keyof typeof statusLabels] : undefined

packages/app/src/components/dialog-select-model-unpaid.tsx

@@ -10,24 +10,27 @@ import { useLocal } from "@/context/local"
 import { popularProviders, useProviders } from "@/hooks/use-providers"
 import { ModelTooltip } from "./model-tooltip"
 import { useLanguage } from "@/context/language"
+import { decode64 } from "@/utils/base64"
 
 type ModelState = ReturnType<typeof useLocal>["model"]
 
 export const DialogSelectModelUnpaid: Component<{ model?: ModelState }> = (props) => {
-  const model = props.model ?? useLocal().model
+  const local = useLocal()
+  const model = props.model ?? local.model
   const dialog = useDialog()
-  const providers = useProviders()
+  const directory = () => decode64(local.slug())
+  const providers = useProviders(directory)
   const language = useLanguage()
 
   const connect = (provider: string) => {
     void import("./dialog-connect-provider").then((x) => {
-      dialog.show(() => <x.DialogConnectProvider provider={provider} />)
+      dialog.show(() => <x.DialogConnectProvider provider={provider} directory={directory} />)
     })
   }
 
   const all = () => {
     void import("./dialog-select-provider").then((x) => {
-      dialog.show(() => <x.DialogSelectProvider />)
+      dialog.show(() => <x.DialogSelectProvider directory={directory} />)
     })
   }
 

packages/app/src/components/dialog-select-model.tsx

@@ -12,6 +12,7 @@ import { List } from "@opencode-ai/ui/list"
 import { Tooltip } from "@opencode-ai/ui/tooltip"
 import { ModelTooltip } from "./model-tooltip"
 import { useLanguage } from "@/context/language"
+import { decode64 } from "@/utils/base64"
 
 const isFree = (provider: string, cost: { input: number } | undefined) =>
   provider === "opencode" && (!cost || cost.input === 0)
@@ -104,6 +105,8 @@ export function ModelSelectorPopover(props: {
     dismiss: null,
   })
   const dialog = useDialog()
+  const local = useLocal()
+  const directory = () => decode64(local.slug())
 
   const close = (dismiss: Dismiss) => {
     setStore("dismiss", dismiss)
@@ -120,7 +123,7 @@ export function ModelSelectorPopover(props: {
   const handleConnectProvider = () => {
     close("provider")
     void import("./dialog-select-provider").then((x) => {
-      dialog.show(() => <x.DialogSelectProvider />)
+      dialog.show(() => <x.DialogSelectProvider directory={directory} />)
     })
   }
   const language = useLanguage()
@@ -199,10 +202,12 @@ export function ModelSelectorPopover(props: {
 export const DialogSelectModel: Component<{ provider?: string; model?: ModelState }> = (props) => {
   const dialog = useDialog()
   const language = useLanguage()
+  const local = useLocal()
+  const directory = () => decode64(local.slug())
 
   const provider = () => {
     void import("./dialog-select-provider").then((x) => {
-      dialog.show(() => <x.DialogSelectProvider />)
+      dialog.show(() => <x.DialogSelectProvider directory={directory} />)
     })
   }
 

packages/app/src/components/dialog-select-provider.tsx

@@ -1,4 +1,4 @@
-import { Component, Show } from "solid-js"
+import { type Accessor, Component, Show } from "solid-js"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { popularProviders, useProviders } from "@/hooks/use-providers"
 import { Dialog } from "@opencode-ai/ui/dialog"
@@ -11,9 +11,9 @@ import { DialogCustomProvider } from "./dialog-custom-provider"
 
 const CUSTOM_ID = "_custom"
 
-export const DialogSelectProvider: Component = () => {
+export const DialogSelectProvider: Component<{ directory?: Accessor<string | undefined> }> = (props) => {
   const dialog = useDialog()
-  const providers = useProviders()
+  const providers = useProviders(props.directory)
   const language = useLanguage()
 
   const popularGroup = () => language.t("dialog.provider.group.popular")
@@ -56,10 +56,10 @@ export const DialogSelectProvider: Component = () => {
         onSelect={(x) => {
           if (!x) return
           if (x.id === CUSTOM_ID) {
-            dialog.show(() => <DialogCustomProvider back="providers" />)
+            dialog.show(() => <DialogCustomProvider back="providers" directory={props.directory} />)
             return
           }
-          dialog.show(() => <DialogConnectProvider provider={x.id} />)
+          dialog.show(() => <DialogConnectProvider provider={x.id} directory={props.directory} />)
         }}
       >
         {(i) => (

packages/app/src/components/directory-picker-domain.test.ts

@@ -0,0 +1,225 @@
+import { expect, test } from "bun:test"
+import {
+  absoluteTreePath,
+  activeTreeNavigation,
+  advanceTreePreload,
+  nextSuggestionIndex,
+  nextTreeScrollTop,
+  pickerTreeEntries,
+  pickerSearchEntries,
+  pickerFileSearchQuery,
+  pickerMode,
+  preloadTreeDirectories,
+  selectedTreePath,
+  treeEntries,
+  treePathWithin,
+  currentPickerSuggestions,
+  createDirectorySearch,
+  createPriorityTaskQueue,
+  displayPickerPath,
+  pickerParent,
+  pickerRoot,
+  pickerAbsoluteInput,
+} from "./directory-picker-domain"
+
+test("maps server directory entries into Pierre paths", () => {
+  expect(
+    treeEntries("src/", [
+      { name: "components", type: "directory" },
+      { name: "index.ts", type: "file" },
+    ]),
+  ).toEqual(["src/components/", "src/index.ts"])
+})
+
+test("maps Pierre paths back to the selected server root", () => {
+  expect(absoluteTreePath("C:/Users/luke", "src/components/")).toBe("C:/Users/luke/src/components")
+  expect(absoluteTreePath("C:/", "")).toBe("C:/")
+  expect(absoluteTreePath("C:/", "README.md")).toBe("C:/README.md")
+  expect(absoluteTreePath("/home/luke", "README.md")).toBe("/home/luke/README.md")
+})
+
+test("includes files only when the picker selects files", () => {
+  const nodes = [
+    { name: "components", type: "directory" as const },
+    { name: "index.ts", type: "file" as const },
+  ]
+  expect(pickerTreeEntries("", nodes, "directory")).toEqual(["components/"])
+  expect(pickerTreeEntries("", nodes, "file")).toEqual(["components/", "index.ts"])
+})
+
+test("includes files in file autocomplete while preserving directory navigation", () => {
+  const nodes = [
+    { name: "src", absolute: "/repo/src", type: "directory" as const },
+    { name: "README.md", absolute: "/repo/README.md", type: "file" as const },
+  ]
+  expect(pickerSearchEntries(nodes, "directory")).toEqual([nodes[0]])
+  expect(pickerSearchEntries(nodes, "file")).toEqual(nodes)
+})
+
+test("centralizes file and directory selection policy", () => {
+  const file = pickerMode("file", "/repo")
+  expect(file.includeFiles).toBeTrue()
+  expect(file.selection("/repo/src", "index.ts")).toBe("src/index.ts")
+  expect(file.selection("/repo", "src/")).toBeUndefined()
+  expect(file.result("/repo", "src/index.ts")).toBe("src/index.ts")
+  expect(file.selection("/tmp", "example.txt")).toBeUndefined()
+  expect(file.navigation("/repo/src")).toBe("/repo/src")
+  expect(file.navigation("/tmp")).toBeUndefined()
+
+  const directory = pickerMode("directory")
+  expect(directory.includeFiles).toBeFalse()
+  expect(directory.selection("/repo", "src/")).toBe("/repo/src")
+  expect(directory.selection("C:/Users/luke", "repos/")).toBe("C:\\Users\\luke\\repos")
+  expect(directory.selection("//Server/Share", "repo/")).toBe("\\\\Server\\Share\\repo")
+  expect(directory.navigation("/tmp")).toBe("/tmp")
+  expect(directory.result("/repo", "")).toBe("/repo")
+  expect(directory.result("C:/Users/luke", "")).toBe("C:\\Users\\luke")
+  expect(directory.result("//Server/Share/repo", "")).toBe("\\\\Server\\Share\\repo")
+  expect(directory.result("/repo", "", false)).toBeUndefined()
+})
+
+test("accepts mutations only from the active navigation", () => {
+  expect(activeTreeNavigation(3, 3)).toBeTrue()
+  expect(activeTreeNavigation(2, 3)).toBeFalse()
+})
+
+test("preserves POSIX case while matching Windows drives case-insensitively", () => {
+  expect(treePathWithin("/repo", "/Repo")).toBeFalse()
+  expect(treePathWithin("C:/Repo", "c:/repo/src")).toBeTrue()
+  expect(treePathWithin("//Server/Share/Repo", "//server/share/repo/src")).toBeTrue()
+  expect(pickerMode("file", "//Server/Share/Repo").selection("//server/share/repo/src", "file.ts")).toBe("src/file.ts")
+  expect(treePathWithin("/repo", "/repo/../tmp")).toBeFalse()
+  expect(treePathWithin("/", "/src")).toBeTrue()
+  expect(pickerMode("file", "C:/Repo").selection("c:/repo/src", "file.ts")).toBe("src/file.ts")
+  expect(pickerMode("file", "C:/").selection("C:/", "file.ts")).toBe("file.ts")
+})
+
+test("displays paths using the selected server path format", () => {
+  expect(displayPickerPath("C:/Users/luke/repos", "C:/Users/luke/repos", "C:/Users/luke")).toBe(
+    "C:\\Users\\luke\\repos",
+  )
+  expect(displayPickerPath("C:/Users/luke/repos", "C:\\Users\\luke\\repos", "C:/Users/luke")).toBe(
+    "C:\\Users\\luke\\repos",
+  )
+  expect(displayPickerPath("/home/luke/repos", "repos", "/home/luke")).toBe("~/repos")
+  expect(displayPickerPath("/home/luke/repos", "~/repos", "/home/luke")).toBe("~/repos")
+})
+
+test("treats the server share prefix as the UNC root", () => {
+  expect(pickerRoot("//Server/Share/repo/src")).toBe("//Server/Share")
+  expect(pickerRoot("\\\\Server\\Share\\repo\\src")).toBe("//Server/Share")
+  expect(pickerParent("//Server/Share")).toBe("//Server/Share")
+  expect(pickerParent("//Server/Share/repo")).toBe("//Server/Share")
+})
+
+test("resolves relative input against the current picker root", () => {
+  expect(pickerAbsoluteInput("src", "/home/luke", "/home/luke/repo")).toBe("/home/luke/repo/src")
+  expect(pickerAbsoluteInput("../other", "/home/luke", "/home/luke/repo")).toBe("/home/luke/other")
+  expect(pickerAbsoluteInput("~/.config", "/home/luke", "/home/luke/repo")).toBe("/home/luke/.config")
+  expect(pickerAbsoluteInput("src", "C:/Users/luke", "C:/Users/luke/repo")).toBe("C:/Users/luke/repo/src")
+})
+
+test("exposes autocomplete results only for their source query", () => {
+  const result = { query: "/repo/src", items: ["/repo/src/index.ts"] }
+  expect(currentPickerSuggestions(result, "/repo/src")).toEqual(result.items)
+  expect(currentPickerSuggestions(result, "/repo/test")).toEqual([])
+})
+
+test("scopes file autocomplete to the current browser root", () => {
+  expect(pickerFileSearchQuery("/home/luke/repos", "/home/luke/repos/src/in", "/home/luke")).toBe("src/in")
+  expect(pickerFileSearchQuery("/home/luke", "~/repos/op", "/home/luke")).toBe("repos/op")
+})
+
+test("resolves directory autocomplete from the current browser root", async () => {
+  const directories: string[] = []
+  const sdk = {
+    client: {
+      find: {
+        files: (input: { directory: string }) => {
+          directories.push(input.directory)
+          return Promise.resolve({ data: [] })
+        },
+      },
+    },
+  } as unknown as Parameters<typeof createDirectorySearch>[0]["sdk"]
+  let base = "/repo"
+  const search = createDirectorySearch({ sdk, home: () => "/home/luke", base: () => base })
+
+  await search("components")
+  base = "/repo/src"
+  await search("components")
+
+  expect(directories).toEqual(["/repo", "/repo/src"])
+})
+
+test("identifies the next directory level to preload", () => {
+  expect(
+    preloadTreeDirectories("src/", [
+      { name: "components", type: "directory" },
+      { name: "index.ts", type: "file" },
+      { name: "utils", type: "directory" },
+    ]),
+  ).toEqual(["src/components/", "src/utils/"])
+})
+
+test("advances preloading once for every expanded directory", () => {
+  const advanced = new Set<string>()
+  expect(advanceTreePreload(advanced, "")).toBeTrue()
+  expect(advanceTreePreload(advanced, "")).toBeFalse()
+  expect(advanceTreePreload(advanced, "repos/")).toBeTrue()
+})
+
+test("limits background tasks and prioritizes newly requested work", async () => {
+  const queue = createPriorityTaskQueue<void>(2)
+  const first = Promise.withResolvers<void>()
+  const second = Promise.withResolvers<void>()
+  const started: string[] = []
+  let active = 0
+  let maximum = 0
+  const task = (name: string, blocker?: Promise<void>) => async () => {
+    started.push(name)
+    active++
+    maximum = Math.max(maximum, active)
+    await blocker
+    active--
+  }
+
+  const running = [
+    queue.schedule("first", "background", task("first", first.promise)),
+    queue.schedule("second", "background", task("second", second.promise)),
+    queue.schedule("preload", "background", task("preload")),
+    queue.schedule("opened", "user", task("opened")),
+  ]
+  await Promise.resolve()
+  expect(started).toEqual(["first", "second"])
+
+  first.resolve()
+  await running[0]
+  await Promise.resolve()
+  expect(started).toEqual(["first", "second", "opened"])
+
+  second.resolve()
+  await Promise.all(running)
+  expect(started).toEqual(["first", "second", "opened", "preload"])
+  expect(maximum).toBe(2)
+})
+
+test("clamps bridged tree wheel scrolling", () => {
+  expect(nextTreeScrollTop(100, 40, 500, 200)).toBe(140)
+  expect(nextTreeScrollTop(10, -40, 500, 200)).toBe(0)
+  expect(nextTreeScrollTop(290, 40, 500, 200)).toBe(300)
+})
+
+test("wraps autocomplete keyboard navigation", () => {
+  expect(nextSuggestionIndex(-1, 1, 4)).toBe(0)
+  expect(nextSuggestionIndex(3, 1, 4)).toBe(0)
+  expect(nextSuggestionIndex(0, -1, 4)).toBe(3)
+  expect(nextSuggestionIndex(0, 1, 0)).toBe(-1)
+})
+
+test("returns absolute directories and relative files", () => {
+  expect(selectedTreePath("/home/luke/repo", "src/", "directory")).toBe("/home/luke/repo/src")
+  expect(selectedTreePath("/home/luke/repo", "src/index.ts", "file")).toBe("src/index.ts")
+  expect(selectedTreePath("/home/luke/repo/src", "index.ts", "file", "/home/luke/repo")).toBe("src/index.ts")
+  expect(selectedTreePath("/home/luke/repo", "src/", "file")).toBeUndefined()
+})

packages/app/src/components/directory-picker-domain.ts

@@ -0,0 +1,404 @@
+export function treeEntries(parent: string, nodes: ReadonlyArray<{ name: string; type: "file" | "directory" }>) {
+  const prefix = parent.replace(/^\/+|\/+$/g, "")
+  return nodes.map((node) => {
+    const path = prefix ? `${prefix}/${node.name}` : node.name
+    return node.type === "directory" ? path + "/" : path
+  })
+}
+
+export function pickerTreeEntries(
+  parent: string,
+  nodes: ReadonlyArray<{ name: string; type: "file" | "directory" }>,
+  mode: "directory" | "file",
+) {
+  return treeEntries(parent, mode === "directory" ? nodes.filter((node) => node.type === "directory") : nodes)
+}
+
+export function pickerSearchEntries<T extends { type: "file" | "directory" }>(
+  nodes: readonly T[],
+  mode: "directory" | "file",
+) {
+  return mode === "directory" ? nodes.filter((node) => node.type === "directory") : [...nodes]
+}
+
+export function pickerMode(mode: "directory" | "file", base?: string) {
+  if (mode === "file") {
+    return {
+      includeFiles: true,
+      action: "file" as const,
+      entries(parent: string, nodes: ReadonlyArray<{ name: string; type: "file" | "directory" }>) {
+        return treeEntries(parent, nodes)
+      },
+      navigation(path: string) {
+        return treePathWithin(base, path) ? path : undefined
+      },
+      result(root: string, selected: string) {
+        return selected || undefined
+      },
+      selection(root: string, path: string) {
+        if (!treePathWithin(base, root)) return
+        return selectedTreePath(root, path, "file", base)
+      },
+    }
+  }
+  return {
+    includeFiles: false,
+    action: "directory" as const,
+    entries(parent: string, nodes: ReadonlyArray<{ name: string; type: "file" | "directory" }>) {
+      return treeEntries(
+        parent,
+        nodes.filter((node) => node.type === "directory"),
+      )
+    },
+    navigation(path: string) {
+      return path
+    },
+    result(root: string, selected: string, valid = true) {
+      if (!valid) return
+      return selected || (root ? nativePickerPath(root) : undefined)
+    },
+    selection(root: string, path: string) {
+      return selectedTreePath(root, path, "directory")
+    },
+  }
+}
+
+export function pickerFileSearchQuery(root: string, input: string, home: string) {
+  const value = input
+    .replace(/\\/g, "/")
+    .replace(/^~(?=\/|$)/, home)
+    .replace(/\/+$/, "")
+  const base = root.replace(/\\/g, "/").replace(/\/+$/, "")
+  if (value === base) return ""
+  if (value.startsWith(base + "/")) return value.slice(base.length + 1)
+  return value
+}
+
+export function pickerAbsoluteInput(input: string, home: string, current: string) {
+  const value = normalizePickerDrive(input).replace(/^~(?=\/|$)/, normalizePickerDrive(home))
+  const absolute = pickerRoot(value) ? value : joinPickerPath(current, value)
+  return canonicalPickerPath(absolute)
+}
+
+export function treePathWithin(base: string | undefined, path: string) {
+  return pickerRelativePath(base, path) !== undefined
+}
+
+export function canonicalPickerPath(path: string) {
+  const value = normalizePickerDrive(path)
+  const root = pickerRoot(value)
+  const parts = value.slice(root.length).split("/")
+  const resolved = parts.reduce<string[]>((output, part) => {
+    if (!part || part === ".") return output
+    if (part === "..") {
+      output.pop()
+      return output
+    }
+    output.push(part)
+    return output
+  }, [])
+  return joinPickerPath(root, resolved.join("/"))
+}
+
+export function pickerRelativePath(base: string | undefined, path: string) {
+  if (!base) return
+  const rootPath = canonicalPickerPath(base)
+  const targetPath = canonicalPickerPath(path)
+  const insensitive = /^[A-Za-z]:\//.test(rootPath) || rootPath.startsWith("//")
+  const root = insensitive ? rootPath.toLowerCase() : rootPath
+  const target = insensitive ? targetPath.toLowerCase() : targetPath
+  if (target === root) return ""
+  const prefix = root.endsWith("/") ? root : root + "/"
+  if (!target.startsWith(prefix)) return
+  return targetPath.slice(prefix.length)
+}
+
+export function currentPickerSuggestions<T>(result: { query: string; items: readonly T[] } | undefined, query: string) {
+  if (result?.query !== query) return []
+  return result.items
+}
+
+export function preloadTreeDirectories(
+  parent: string,
+  nodes: ReadonlyArray<{ name: string; type: "file" | "directory" }>,
+) {
+  return treeEntries(
+    parent,
+    nodes.filter((node) => node.type === "directory"),
+  )
+}
+
+export function advanceTreePreload(advanced: Set<string>, path: string) {
+  if (advanced.has(path)) return false
+  advanced.add(path)
+  return true
+}
+
+export function activeTreeNavigation(request: number, current: number) {
+  return request === current
+}
+
+export function createPriorityTaskQueue<T>(concurrency: number) {
+  type Job = {
+    key: string
+    priority: "user" | "background"
+    promise: Promise<T>
+    run: () => void
+  }
+
+  const jobs = new Map<string, Job>()
+  const user: Job[] = []
+  const background: Job[] = []
+  let active = 0
+
+  const drain = () => {
+    while (active < concurrency) {
+      const job = user.pop() ?? background.shift()
+      if (!job) return
+      active++
+      job.run()
+    }
+  }
+
+  const schedule = (key: string, priority: Job["priority"], task: () => Promise<T>) => {
+    const existing = jobs.get(key)
+    if (existing) {
+      if (priority === "user") promote(key)
+      return existing.promise
+    }
+
+    const deferred = Promise.withResolvers<T>()
+    const job: Job = {
+      key,
+      priority,
+      promise: deferred.promise,
+      run: () => {
+        const complete = () => {
+          active--
+          jobs.delete(key)
+          drain()
+        }
+        Promise.resolve()
+          .then(task)
+          .then(
+            (value) => {
+              complete()
+              deferred.resolve(value)
+            },
+            (error) => {
+              complete()
+              deferred.reject(error)
+            },
+          )
+      },
+    }
+    jobs.set(key, job)
+    ;(priority === "user" ? user : background).push(job)
+    drain()
+    return job.promise
+  }
+
+  const promote = (key: string) => {
+    const job = jobs.get(key)
+    if (!job || job.priority === "user") return
+    const index = background.indexOf(job)
+    if (index === -1) return
+    background.splice(index, 1)
+    job.priority = "user"
+    user.push(job)
+  }
+
+  return { schedule, promote }
+}
+
+export function nextTreeScrollTop(current: number, delta: number, scrollHeight: number, clientHeight: number) {
+  return Math.min(Math.max(0, scrollHeight - clientHeight), Math.max(0, current + delta))
+}
+
+export function nextSuggestionIndex(current: number, delta: -1 | 1, count: number) {
+  if (count === 0) return -1
+  return (current + delta + count) % count
+}
+
+export function absoluteTreePath(root: string, path: string) {
+  const base = trimPickerPath(root)
+  const relative = path.replace(/\\/g, "/").replace(/^\/+|\/+$/g, "")
+  if (!relative) return base || "/"
+  if (!base || base === "/") return "/" + relative
+  if (base.endsWith("/")) return base + relative
+  return `${base}/${relative}`
+}
+
+export function selectedTreePath(root: string, path: string, mode: "directory" | "file", base?: string) {
+  const directory = path.endsWith("/")
+  if (mode === "file") {
+    if (directory) return
+    if (!base) return path
+    const absolute = absoluteTreePath(root, path)
+    return pickerRelativePath(base, absolute)
+  }
+  return directory ? nativePickerPath(absoluteTreePath(root, path)) : undefined
+}
+
+export function nativePickerPath(path: string) {
+  const value = trimPickerPath(path)
+  if (/^[A-Za-z]:\//.test(value) || value.startsWith("//")) return value.replaceAll("/", "\\")
+  return value
+}
+import { getFilename } from "@opencode-ai/core/util/path"
+import fuzzysort from "fuzzysort"
+import { ServerSDK } from "@/context/server-sdk"
+
+export function cleanPickerInput(value: string) {
+  const first = (value ?? "").split(/\r?\n/)[0] ?? ""
+  return first.replace(/[\u0000-\u001F\u007F]/g, "").trim()
+}
+
+export function normalizePickerPath(input: string) {
+  const value = input.replaceAll("\\", "/")
+  if (value.startsWith("//") && !value.startsWith("///")) return "//" + value.slice(2).replace(/\/+/g, "/")
+  return value.replace(/\/+/g, "/")
+}
+
+export function normalizePickerDrive(input: string) {
+  const value = normalizePickerPath(input)
+  if (/^[A-Za-z]:$/.test(value)) return value + "/"
+  return value
+}
+
+export function trimPickerPath(input: string) {
+  const value = normalizePickerDrive(input)
+  if (value === "/" || value === "//" || /^[A-Za-z]:\/$/.test(value)) return value
+  return value.replace(/\/+$/, "")
+}
+
+export function joinPickerPath(base: string | undefined, relative: string) {
+  const root = trimPickerPath(base ?? "")
+  const path = trimPickerPath(relative).replace(/^\/+/, "")
+  if (!root) return path
+  if (!path) return root
+  if (root.endsWith("/")) return root + path
+  return root + "/" + path
+}
+
+export function pickerRoot(input: string) {
+  const value = normalizePickerDrive(input)
+  if (value.startsWith("//")) {
+    const [server, share] = value.slice(2).split("/")
+    if (server && share) return `//${server}/${share}`
+    return "//"
+  }
+  if (value.startsWith("/")) return "/"
+  if (/^[A-Za-z]:\//.test(value)) return value.slice(0, 3)
+  return ""
+}
+
+export function pickerParent(input: string) {
+  const value = trimPickerPath(input)
+  const root = pickerRoot(value)
+  if (value === root) return value
+  if (value === "/" || value === "//" || /^[A-Za-z]:\/$/.test(value)) return value
+  const index = value.lastIndexOf("/")
+  if (index < root.length) return root
+  if (index <= 0) return "/"
+  if (index === 2 && /^[A-Za-z]:/.test(value)) return value.slice(0, 3)
+  return value.slice(0, index)
+}
+
+function pickerTilde(absolute: string, home: string) {
+  const path = trimPickerPath(absolute)
+  if (!home) return ""
+  const root = trimPickerPath(home)
+  if (/^[A-Za-z]:\//.test(root)) return ""
+  if (path === root) return "~"
+  if (path.startsWith(root + "/")) return "~" + path.slice(root.length)
+  return ""
+}
+
+export function displayPickerPath(path: string, input: string, home: string) {
+  const value = trimPickerPath(path)
+  if (/^[A-Za-z]:\//.test(trimPickerPath(home)) || /^[A-Za-z]:\//.test(value)) return value.replaceAll("/", "\\")
+  return pickerTilde(value, home) || value
+}
+
+export function createDirectorySearch(args: { sdk: ServerSDK; base: () => string | undefined; home: () => string }) {
+  const cache = new Map<string, Promise<Array<{ name: string; absolute: string }>>>()
+  let current = 0
+
+  const scoped = (value: string) => {
+    const base = args.base()
+    if (!base) return
+    const raw = normalizePickerDrive(value)
+    if (!raw) return { directory: trimPickerPath(base), path: "" }
+    const home = args.home()
+    if (raw === "~") return { directory: trimPickerPath(home || base), path: "" }
+    if (raw.startsWith("~/")) return { directory: trimPickerPath(home || base), path: raw.slice(2) }
+    const root = pickerRoot(raw)
+    if (root) return { directory: trimPickerPath(root), path: raw.slice(root.length) }
+    return { directory: trimPickerPath(base), path: raw }
+  }
+
+  const directories = async (directory: string) => {
+    const key = trimPickerPath(directory)
+    const existing = cache.get(key)
+    if (existing) return existing
+    const request = args.sdk.client.file
+      .list({ directory: key, path: "" })
+      .then((result) => result.data ?? [])
+      .catch(() => [])
+      .then((nodes) =>
+        nodes
+          .filter((node) => node.type === "directory")
+          .map((node) => ({ name: node.name, absolute: trimPickerPath(normalizePickerDrive(node.absolute)) })),
+      )
+    cache.set(key, request)
+    return request
+  }
+
+  const match = async (directory: string, query: string, limit: number) => {
+    const items = await directories(directory)
+    if (!query) return items.slice(0, limit).map((item) => item.absolute)
+    return fuzzysort.go(query, items, { key: "name", limit }).map((item) => item.obj.absolute)
+  }
+
+  return async (filter: string) => {
+    const token = ++current
+    const active = () => token === current
+    const value = cleanPickerInput(filter)
+    const input = scoped(value)
+    if (!input) return [] as string[]
+    const raw = normalizePickerDrive(value)
+    const pathInput = raw.startsWith("~") || !!pickerRoot(raw) || raw.includes("/")
+    const query = normalizePickerDrive(input.path)
+    if (!pathInput) {
+      const results = await args.sdk.client.find
+        .files({ directory: input.directory, query, type: "directory", limit: 50 })
+        .then((result) => result.data ?? [])
+        .catch(() => [])
+      if (!active()) return []
+      return results.map((path) => joinPickerPath(input.directory, path)).slice(0, 50)
+    }
+    const segments = query.replace(/^\/+/, "").split("/")
+    const head = segments.slice(0, -1).filter((part) => part && part !== ".")
+    const tail = segments.at(-1) ?? ""
+    let paths = [input.directory]
+    for (const part of head) {
+      if (!active()) return []
+      if (part === "..") {
+        paths = paths.map(pickerParent)
+        continue
+      }
+      paths = Array.from(new Set((await Promise.all(paths.map((path) => match(path, part, 4)))).flat())).slice(0, 12)
+      if (!active() || paths.length === 0) return []
+    }
+    const matches = Array.from(new Set((await Promise.all(paths.map((path) => match(path, tail, 50)))).flat()))
+    if (!active()) return []
+    const base = raw.startsWith("~") ? trimPickerPath(input.directory) : ""
+    if (raw.endsWith("/") || !tail) return Array.from(new Set([base, ...matches].filter(Boolean))).slice(0, 50)
+    const target = matches.find((path) => getFilename(path).toLowerCase() === tail.toLowerCase())
+    if (!target) return matches.slice(0, 50)
+    const children = await match(target, "", 30)
+    if (!active()) return []
+    return Array.from(new Set([base, ...matches, ...children].filter(Boolean))).slice(0, 50)
+  }
+}

packages/app/src/components/directory-picker.tsx

@@ -1,9 +1,15 @@
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { ServerConnection } from "@/context/server"
 import { usePlatform } from "@/context/platform"
+import { useSettings } from "@/context/settings"
+import { lazy } from "solid-js"
 import { DialogSelectDirectory } from "./dialog-select-directory"
 import { directoryPickerKind } from "./directory-picker-policy"
 
+const DialogSelectDirectoryV2 = lazy(() =>
+  import("./dialog-select-directory-v2").then((module) => ({ default: module.DialogSelectDirectoryV2 })),
+)
+
 type DirectoryPickerInput = {
   server: ServerConnection.Any
   title?: string
@@ -13,6 +19,7 @@ type DirectoryPickerInput = {
 
 export function useDirectoryPicker() {
   const platform = usePlatform()
+  const settings = useSettings()
   const dialog = useDialog()
 
   return (input: DirectoryPickerInput) => {
@@ -21,9 +28,18 @@ export function useDirectoryPicker() {
       return
     }
 
-    dialog.show(
+    let selected = false
-      () => <DialogSelectDirectory {...input} />,
+    const onSelect = (result: string | string[] | null) => {
-      () => input.onSelect(null),
+      selected = result !== null
-    )
+      input.onSelect(result)
+    }
+    const cancel = () => {
+      if (!selected) input.onSelect(null)
+    }
+    if (platform.platform === "desktop" && settings.general.newLayoutDesigns()) {
+      dialog.show(() => <DialogSelectDirectoryV2 {...input} onSelect={onSelect} />, cancel)
+      return
+    }
+    dialog.show(() => <DialogSelectDirectory {...input} onSelect={onSelect} />, cancel)
   }
 }

packages/app/src/components/help-button.tsx

@@ -11,7 +11,7 @@ export function HelpButton() {
 
   return (
     <Show when={!state.dismissed}>
-      <div class="fixed bottom-4 right-4 z-50">
+      <div class="fixed bottom-4 right-4 z-50 hidden md:block">
         <Popover
           open={shown()}
           onOpenChange={setShown}

packages/app/src/components/pierre-tree.test.ts

@@ -0,0 +1,23 @@
+import { expect, test } from "bun:test"
+import { FileTree, type FileTreeDirectoryHandle } from "@pierre/trees"
+
+test("reports directory expansion changes", () => {
+  const changes: Array<{ path: string; expanded: boolean }> = []
+  const tree = new FileTree({
+    paths: ["src/"],
+    onExpansionChange: (change) => changes.push(change),
+  })
+
+  const src = tree.getItem("src/")
+  if (!src || !src.isDirectory()) throw new Error("Expected src to be a directory")
+  const directory = src as FileTreeDirectoryHandle
+
+  directory.expand()
+  directory.collapse()
+
+  expect(changes).toEqual([
+    { path: "src/", expanded: true },
+    { path: "src/", expanded: false },
+  ])
+  tree.cleanUp()
+})

packages/app/src/components/prompt-input.stories.tsx

@@ -0,0 +1,211 @@
+// @ts-nocheck
+import { createStore } from "solid-js/store"
+import type { Todo } from "@opencode-ai/sdk/v2"
+import { createPromptState } from "@/context/prompt"
+import { SessionComposerRegion } from "@/pages/session/composer"
+import { createPromptInputHistory, PromptInput } from "./prompt-input"
+
+function createPromptInputStoryRuntime() {
+  const state = createPromptState()
+  return {
+    state,
+    history: createPromptInputHistory(),
+    submission: {
+      abort() {},
+      handleSubmit(event: Event) {
+        event.preventDefault()
+        state.reset()
+      },
+    },
+  }
+}
+
+function PromptInputExample() {
+  const input = createPromptInputStoryRuntime()
+  const [controls, setControls] = createStore({
+    agent: "build",
+    variant: undefined as string | undefined,
+    comments: 0,
+    tabs: [] as string[],
+    activeTab: undefined as string | undefined,
+    reviewOpen: false,
+  })
+  const model = {
+    current: () => ({ id: "claude-3-7-sonnet", name: "Claude 3.7 Sonnet", provider: { id: "anthropic" } }),
+    variant: {
+      list: () => ["fast", "thinking"],
+      current: () => controls.variant,
+      set: (variant?: string) => setControls("variant", variant),
+    },
+  }
+  const inputControls = {
+    agents: {
+      available: [{ name: "review", hidden: false, mode: "subagent" }],
+      options: ["build", "review", "plan"],
+      get current() {
+        return controls.agent
+      },
+      loading: false,
+      visible: true,
+      select: (agent?: string) => setControls("agent", agent ?? "build"),
+    },
+    model: {
+      selection: model,
+      paid: true,
+      loading: false,
+    },
+    projects: {
+      available: [{ name: "Story project", worktree: "/tmp/story", sandboxes: [] }],
+      directory: "/tmp/story",
+      select() {},
+      add() {},
+    },
+    session: {
+      id: "story-session",
+      tabs: {
+        active: () => controls.activeTab,
+        all: () => controls.tabs,
+        open: (tab: string) => setControls("tabs", (tabs) => (tabs.includes(tab) ? tabs : [...tabs, tab])),
+        setActive: (tab: string) => setControls("activeTab", tab),
+      },
+      reviewPanel: {
+        opened: () => controls.reviewOpen,
+        open: () => setControls("reviewOpen", true),
+      },
+    },
+    newLayoutDesigns: true,
+  }
+  const addReviewComment = () => {
+    const comment = controls.comments + 1
+    setControls("comments", comment)
+    input.state.context.add({
+      type: "file",
+      path: "src/components/prompt-input.tsx",
+      selection: {
+        startLine: 84 + comment,
+        startChar: 0,
+        endLine: 84 + comment,
+        endChar: 0,
+      },
+      comment: `Review comment ${comment}`,
+      commentID: `review-comment-${comment}`,
+      commentOrigin: "review",
+      preview: "export const PromptInput = ...",
+    })
+  }
+
+  return (
+    <div class="flex flex-col gap-3">
+      <PromptInput controls={inputControls} {...input} />
+      <div>
+        <button
+          type="button"
+          class="rounded-md border border-border-weak-base bg-background-base px-2.5 py-1.5 text-12-medium text-text-base hover:bg-background-stronger"
+          onClick={addReviewComment}
+        >
+          Add review comment
+        </button>
+      </div>
+    </div>
+  )
+}
+
+const todos: Todo[] = [
+  { id: "todo-1", content: "Inspect the session composer animation", status: "completed" },
+  { id: "todo-2", content: "Keep the dock settled on initial render", status: "in_progress" },
+  { id: "todo-3", content: "Verify session navigation behavior", status: "pending" },
+]
+
+function PromptInputWithOpenDock() {
+  const input = createPromptInputStoryRuntime()
+  const [controls, setControls] = createStore({
+    agent: "build",
+    activeTab: undefined as string | undefined,
+    todoCollapsed: false,
+  })
+  const inputControls = {
+    agents: {
+      available: [],
+      options: ["build"],
+      get current() {
+        return controls.agent
+      },
+      loading: false,
+      visible: true,
+      select: (agent?: string) => setControls("agent", agent ?? "build"),
+    },
+    model: {
+      selection: {
+        current: () => ({ id: "claude-3-7-sonnet", name: "Claude 3.7 Sonnet", provider: { id: "anthropic" } }),
+        variant: { list: () => [], current: () => undefined, set: () => {} },
+      },
+      paid: true,
+      loading: false,
+    },
+    projects: { available: [], directory: "/tmp/story", select: () => {}, add: () => {} },
+    session: {
+      id: "story-session",
+      tabs: {
+        active: () => controls.activeTab,
+        all: () => [],
+        open: () => {},
+        setActive: (tab: string) => setControls("activeTab", tab),
+      },
+      reviewPanel: { opened: () => false, open: () => {} },
+    },
+    newLayoutDesigns: true,
+  }
+  const state = {
+    blocked: () => false,
+    questionRequest: () => undefined,
+    permissionRequest: () => undefined,
+    permissionResponding: () => false,
+    decide: () => {},
+    todos: () => todos,
+    dock: () => true,
+    closing: () => false,
+    opening: () => false,
+  }
+
+  return (
+    <SessionComposerRegion
+      state={state}
+      sessionKey="story-session"
+      sessionID="story-session"
+      controls={inputControls}
+      promptInput={{ ...input, ref: () => {}, newSessionWorktree: "", onNewSessionWorktreeReset: () => {} }}
+      todo={{
+        collapsed: controls.todoCollapsed,
+        onToggle: () => setControls("todoCollapsed", (collapsed) => !collapsed),
+      }}
+      ready
+      centered={false}
+      onResponseSubmit={() => {}}
+      setPromptDockRef={() => {}}
+    />
+  )
+}
+
+export default {
+  title: "App/PromptInput",
+  id: "app-prompt-input",
+  component: PromptInput,
+}
+
+export const Basic = {
+  render: () => (
+    <div class="pt-10">
+      <h1 class="mb-4">Prompt Input</h1>
+      <PromptInputExample />
+    </div>
+  ),
+}
+
+export const DockAlreadyOpen = {
+  render: () => (
+    <div class="pt-10">
+      <h1 class="mb-4">Prompt Input with open Todo dock</h1>
+      <PromptInputWithOpenDock />
+    </div>
+  ),
+}

packages/app/src/components/prompt-input.tsx

@@ -17,8 +17,8 @@ import {
   type JSX,
 } from "solid-js"
 import { Popover as KobaltePopover } from "@kobalte/core/popover"
-import { createStore } from "solid-js/store"
+import { createStore, type SetStoreFunction, type Store } from "solid-js/store"
-import { useLocal } from "@/context/local"
+import type { useLocal } from "@/context/local"
 import { selectionFromLines, type SelectedLineRange, useFile } from "@/context/file"
 import {
   ContentPart,
@@ -31,10 +31,7 @@ import {
   FileAttachmentPart,
 } from "@/context/prompt"
 import { useLayout } from "@/context/layout"
-import { useNavigate, useSearchParams } from "@solidjs/router"
 import { useSDK } from "@/context/sdk"
-import { useServer } from "@/context/server"
-import { useTabs } from "@/context/tabs"
 import { useSync } from "@/context/sync"
 import { useComments } from "@/context/comments"
 import { Button } from "@opencode-ai/ui/button"
@@ -46,14 +43,11 @@ import { IconButton } from "@opencode-ai/ui/icon-button"
 import { Select } from "@opencode-ai/ui/select"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { ModelSelectorPopover } from "@/components/dialog-select-model"
-import { useProviders } from "@/hooks/use-providers"
 import { useCommand } from "@/context/command"
 import { Persist, persisted } from "@/utils/persist"
 import { usePermission } from "@/context/permission"
 import { useLanguage } from "@/context/language"
 import { usePlatform } from "@/context/platform"
-import { useSettings } from "@/context/settings"
-import { useSessionLayout } from "@/pages/session/session-layout"
 import { createSessionTabs } from "@/pages/session/helpers"
 import { createTextFragment, getCursorPosition, setCursorPosition, setRangeEdge } from "./prompt-input/editor-dom"
 import { createPromptAttachments } from "./prompt-input/attachments"
@@ -73,18 +67,105 @@ import { PromptContextItems } from "./prompt-input/context-items"
 import { PromptImageAttachments } from "./prompt-input/image-attachments"
 import { PromptDragOverlay } from "./prompt-input/drag-overlay"
 import { promptPlaceholder } from "./prompt-input/placeholder"
-import { useDirectoryPicker } from "./directory-picker"
+import { createPromptInputTransientState } from "./prompt-input/transient-state"
 import { showToast } from "@/utils/toast"
 import { ImagePreview } from "@opencode-ai/ui/image-preview"
-import { useQueries } from "@tanstack/solid-query"
-import { useQueryOptions } from "@/context/server-sync"
 import { pathKey } from "@/utils/path-key"
-import { base64Encode } from "@opencode-ai/core/util/encode"
 import { displayName } from "@/pages/layout/helpers"
 
-interface PromptInputProps {
+export type PromptInputState = ReturnType<typeof usePrompt>
+
+export type PromptInputHistory = {
+  entries: (mode: "normal" | "shell") => PromptHistoryStoredEntry[]
+  add: (prompt: Prompt, mode: "normal" | "shell", comments: PromptHistoryComment[]) => void
+}
+
+export type PromptInputSubmission = {
+  abort: () => Promise<void> | void
+  handleSubmit: (event: Event) => Promise<void> | void
+}
+
+export type PromptInputControls = {
+  agents: {
+    available: { name: string; hidden?: boolean; mode: string }[]
+    options: string[]
+    current: string
+    loading: boolean
+    visible: boolean
+    select: (name: string | undefined) => void
+  }
+  model: {
+    selection: ReturnType<typeof useLocal>["model"]
+    paid: boolean
+    loading: boolean
+  }
+  projects: {
+    available: { name?: string; worktree: string; sandboxes?: string[] }[]
+    directory: string
+    select: (worktree: string) => void
+    add: (title: string) => void
+  }
+  session: {
+    id?: string
+    tabs: {
+      active: () => string | undefined
+      all: () => string[]
+      open: (tab: string) => void | Promise<void>
+      setActive: (tab: string) => void
+    }
+    reviewPanel: {
+      opened: () => boolean
+      open: () => void
+    }
+  }
+  newLayoutDesigns: boolean
+}
+
+export function createPromptInputHistory(): PromptInputHistory {
+  const [normal, setNormal] = createStore<PromptHistoryState>({ entries: [] })
+  const [shell, setShell] = createStore<PromptHistoryState>({ entries: [] })
+  return createPromptInputHistoryStore(normal, setNormal, shell, setShell)
+}
+
+type PromptHistoryState = { entries: PromptHistoryStoredEntry[] }
+
+function createPromptInputHistoryStore(
+  normal: Store<PromptHistoryState>,
+  setNormal: SetStoreFunction<PromptHistoryState>,
+  shell: Store<PromptHistoryState>,
+  setShell: SetStoreFunction<PromptHistoryState>,
+): PromptInputHistory {
+  return {
+    entries: (mode) => (mode === "shell" ? shell.entries : normal.entries),
+    add(prompt, mode, comments) {
+      const current = mode === "shell" ? shell : normal
+      const setCurrent = mode === "shell" ? setShell : setNormal
+      const next = prependHistoryEntry(current.entries, prompt, comments)
+      if (next === current.entries) return
+      setCurrent("entries", next)
+    },
+  }
+}
+
+function createPersistedPromptInputHistory() {
+  const [normal, setNormal] = persisted(
+    Persist.global("prompt-history", ["prompt-history.v1"]),
+    createStore<PromptHistoryState>({ entries: [] }),
+  )
+  const [shell, setShell] = persisted(
+    Persist.global("prompt-history-shell", ["prompt-history-shell.v1"]),
+    createStore<PromptHistoryState>({ entries: [] }),
+  )
+  return createPromptInputHistoryStore(normal, setNormal, shell, setShell)
+}
+
+export interface PromptInputProps {
   class?: string
   variant?: "dock" | "new-session"
+  state?: PromptInputState
+  history?: PromptInputHistory
+  submission?: PromptInputSubmission
+  controls: PromptInputControls
   ref?: (el: HTMLDivElement) => void
   newSessionWorktree?: string
   onNewSessionWorktreeReset?: () => void
@@ -126,27 +207,18 @@ const EXAMPLES = [
 
 export const PromptInput: Component<PromptInputProps> = (props) => {
   const sdk = useSDK()
-  const navigate = useNavigate()
-  const queryOptions = useQueryOptions()
 
   const sync = useSync()
-  const local = useLocal()
   const files = useFile()
-  const prompt = usePrompt()
+  const prompt = props.state ?? usePrompt()
   const layout = useLayout()
-  const server = useServer()
   const comments = useComments()
   const dialog = useDialog()
-  const providers = useProviders()
   const command = useCommand()
   const permission = usePermission()
   const language = useLanguage()
   const platform = usePlatform()
-  const pickDirectory = useDirectoryPicker()
+  const tabs = () => props.controls.session.tabs
-  const settings = useSettings()
-  const tabsStore = useTabs()
-  const [search] = useSearchParams<{ draftId?: string }>()
-  const { params, tabs, view } = useSessionLayout()
   let editorRef!: HTMLDivElement
   let fileInputRef: HTMLInputElement | undefined
   let scrollRef!: HTMLDivElement
@@ -204,10 +276,10 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   }).activeFileTab
 
   const commentInReview = (path: string) => {
-    const sessionID = params.id
+    const sessionID = props.controls.session.id
     if (!sessionID) return false
 
-    const diffs = sync.data.session_diff[sessionID]
+    const diffs = sync().data.session_diff[sessionID]
     if (!diffs) return false
     return diffs.some((diff) => diff.file === path)
   }
@@ -237,14 +309,14 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
 
     const wantsReview = item.commentOrigin === "review" || (item.commentOrigin !== "file" && commentInReview(item.path))
     if (wantsReview) {
-      if (!view().reviewPanel.opened()) view().reviewPanel.open()
+      if (!props.controls.session.reviewPanel.opened()) props.controls.session.reviewPanel.open()
       layout.fileTree.setTab("changes")
       tabs().setActive("review")
       queueCommentFocus()
       return
     }
 
-    if (!view().reviewPanel.opened()) view().reviewPanel.open()
+    if (!props.controls.session.reviewPanel.opened()) props.controls.session.reviewPanel.open()
     layout.fileTree.setTab("all")
     const tab = files.tab(item.path)
     void tabs().open(tab)
@@ -269,31 +341,16 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
 
     return paths
   })
-  const info = createMemo(() => (params.id ? sync.session.get(params.id) : undefined))
+  const info = createMemo(() => (props.controls.session.id ? sync().session.get(props.controls.session.id) : undefined))
-  const working = createMemo(() => sync.data.session_working(params.id ?? ""))
+  const working = createMemo(() => sync().data.session_working(props.controls.session.id ?? ""))
   const imageAttachments = createMemo(() =>
     prompt.current().filter((part): part is ImageAttachmentPart => part.type === "image"),
   )
 
-  const [store, setStore] = createStore<{
+  const [store, setStore] = createPromptInputTransientState(
-    popover: "at" | "slash" | null
+    () => prompt.capture(),
-    historyIndex: number
+    Math.floor(Math.random() * EXAMPLES.length),
-    savedPrompt: PromptHistoryEntry | null
+  )
-    placeholder: number
-    draggingType: "image" | "@mention" | null
-    mode: "normal" | "shell"
-    applyingHistory: boolean
-    variantOpen: boolean
-  }>({
-    popover: null,
-    historyIndex: -1,
-    savedPrompt: null as PromptHistoryEntry | null,
-    placeholder: Math.floor(Math.random() * EXAMPLES.length),
-    draggingType: null,
-    mode: "normal",
-    applyingHistory: false,
-    variantOpen: false,
-  })
   const [picker, setPicker] = createStore({
     projectOpen: false,
     projectSearch: "",
@@ -347,29 +404,14 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   })
 
   const hasUserPrompt = createMemo(() => {
-    const sessionID = params.id
+    const sessionID = props.controls.session.id
     if (!sessionID) return false
-    const messages = sync.data.message[sessionID]
+    const messages = sync().data.message[sessionID]
     if (!messages) return false
     return messages.some((m) => m.role === "user")
   })
 
-  const [history, setHistory] = persisted(
+  const history = props.history ?? createPersistedPromptInputHistory()
-    Persist.global("prompt-history", ["prompt-history.v1"]),
-    createStore<{
-      entries: PromptHistoryStoredEntry[]
-    }>({
-      entries: [],
-    }),
-  )
-  const [shellHistory, setShellHistory] = persisted(
-    Persist.global("prompt-history-shell", ["prompt-history-shell.v1"]),
-    createStore<{
-      entries: PromptHistoryStoredEntry[]
-    }>({
-      entries: [],
-    }),
-  )
 
   const suggest = createMemo(() => !hasUserPrompt())
 
@@ -474,7 +516,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   const pick = () => {
     pickAttachmentFiles({
       picker: platform.openAttachmentPickerDialog,
-      directory: () => sdk.directory,
+      directory: () => sdk().directory,
       fallback: () => fileInputRef?.click(),
       onFile: addAttachment,
       onError: (error) =>
@@ -573,8 +615,8 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   }
 
   createEffect(() => {
-    params.id
+    props.controls.session.id
-    if (params.id) return
+    if (props.controls.session.id) return
     if (!suggest()) return
     const interval = setInterval(() => {
       setStore("placeholder", (prev) => (prev + 1) % EXAMPLES.length)
@@ -603,11 +645,10 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   }
 
   const agentList = createMemo(() =>
-    sync.data.agent
+    props.controls.agents.available
       .filter((agent) => !agent.hidden && agent.mode !== "primary")
       .map((agent): AtOption => ({ type: "agent", name: agent.name, display: agent.name })),
   )
-  const agentNames = createMemo(() => local.agent.list().map((agent) => agent.name))
 
   const handleAtSelect = (option: AtOption | undefined) => {
     if (!option) return
@@ -673,7 +714,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
         type: "builtin" as const,
       }))
 
-    const custom = sync.data.command.map((cmd) => ({
+    const custom = sync().data.command.map((cmd) => ({
       id: `custom.${cmd.name}`,
       trigger: cmd.name,
       title: cmd.name,
@@ -1033,11 +1074,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   }
 
   const addToHistory = (prompt: Prompt, mode: "normal" | "shell") => {
-    const currentHistory = mode === "shell" ? shellHistory : history
+    history.add(prompt, mode, mode === "shell" ? [] : historyComments())
-    const setCurrentHistory = mode === "shell" ? setShellHistory : setHistory
-    const next = prependHistoryEntry(currentHistory.entries, prompt, mode === "shell" ? [] : historyComments())
-    if (next === currentHistory.entries) return
-    setCurrentHistory("entries", next)
   }
 
   createEffect(
@@ -1082,7 +1119,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   const navigateHistory = (direction: "up" | "down") => {
     const result = navigatePromptHistory({
       direction,
-      entries: store.mode === "shell" ? shellHistory.entries : history.entries,
+      entries: history.entries(store.mode),
       historyIndex: store.historyIndex,
       currentPrompt: prompt.current(),
       currentComments: historyComments(),
@@ -1096,6 +1133,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   }
 
   const { addAttachment, addAttachments, removeAttachment, handlePaste } = createPromptAttachments({
+    prompt,
     editor: () => editorRef,
     isDialogActive: () => !!dialog.active,
     setDraggingType: (type) => setStore("draggingType", type),
@@ -1105,6 +1143,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
     },
     addPart,
     readClipboardImage: platform.readClipboardImage,
+    getPathForFile: platform.getPathForFile,
   })
 
   const fileAttachmentInput = () => (
@@ -1122,38 +1161,41 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
     />
   )
 
-  const variants = createMemo(() => ["default", ...local.model.variant.list()])
+  const variants = createMemo(() => ["default", ...props.controls.model.selection.variant.list()])
   // Check provider variants directly: `variants` also includes the UI-only default option.
-  const showVariantControl = createMemo(() => local.model.variant.list().length > 0)
+  const showVariantControl = createMemo(() => props.controls.model.selection.variant.list().length > 0)
   const accepting = createMemo(() => {
-    const id = params.id
+    const id = props.controls.session.id
-    if (!id) return permission.isAutoAcceptingDirectory(sdk.directory)
+    if (!id) return permission.isAutoAcceptingDirectory(sdk().directory)
-    return permission.isAutoAccepting(id, sdk.directory)
+    return permission.isAutoAccepting(id, sdk().directory)
   })
 
-  const { abort, handleSubmit } = createPromptSubmit({
+  const { abort, handleSubmit } =
-    info,
+    props.submission ??
-    imageAttachments,
+    createPromptSubmit({
-    commentCount,
+      prompt,
-    autoAccept: () => accepting(),
+      info,
-    mode: () => store.mode,
+      imageAttachments,
-    working,
+      commentCount,
-    editor: () => editorRef,
+      autoAccept: () => accepting(),
-    queueScroll,
+      mode: () => store.mode,
-    promptLength,
+      working,
-    addToHistory,
+      editor: () => editorRef,
-    resetHistoryNavigation: () => {
+      queueScroll,
-      resetHistoryNavigation(true)
+      promptLength,
-    },
+      addToHistory,
-    setMode: (mode) => setStore("mode", mode),
+      resetHistoryNavigation: () => {
-    setPopover: (popover) => setStore("popover", popover),
+        resetHistoryNavigation(true)
-    newSessionWorktree: () => props.newSessionWorktree,
+      },
-    onNewSessionWorktreeReset: props.onNewSessionWorktreeReset,
+      setMode: (mode) => setStore("mode", mode),
-    shouldQueue: props.shouldQueue,
+      setPopover: (popover) => setStore("popover", popover),
-    onQueue: props.onQueue,
+      newSessionWorktree: () => props.newSessionWorktree,
-    onAbort: props.onAbort,
+      onNewSessionWorktreeReset: props.onNewSessionWorktreeReset,
-    onSubmit: props.onSubmit,
+      shouldQueue: props.shouldQueue,
-  })
+      onQueue: props.onQueue,
+      onAbort: props.onAbort,
+      onSubmit: props.onSubmit,
+    })
 
   const handleKeyDown = (event: KeyboardEvent) => {
     if ((event.metaKey || event.ctrlKey) && !event.altKey && !event.shiftKey && event.key.toLowerCase() === "u") {
@@ -1317,21 +1359,13 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
     }
   }
 
-  const [agentsQuery, globalProvidersQuery, providersQuery] = useQueries(() => ({
+  const agentsLoading = () => props.controls.agents.loading
-    queries: [
-      queryOptions.agents(pathKey(sdk.directory)),
-      queryOptions.providers(null),
-      queryOptions.providers(pathKey(sdk.directory)),
-    ],
-  }))
-
-  const agentsLoading = () => agentsQuery.isLoading
   const agentsShouldFadeIn = createMemo((prev) => prev ?? agentsLoading())
-  const providersLoading = () => agentsLoading() || providersQuery.isLoading || globalProvidersQuery.isLoading
+  const providersLoading = () => props.controls.model.loading
   const providersShouldFadeIn = createMemo((prev) => prev ?? providersLoading())
 
   const [promptReady] = createResource(
-    () => prompt.ready().promise,
+    () => prompt.ready.promise,
     (p) => p,
   )
 
@@ -1342,23 +1376,23 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
 
   const modelControlState = createMemo<ComposerModelControlState>(() => ({
     loading: providersLoading(),
-    paid: providers.paid().length > 0,
+    paid: props.controls.model.paid,
     title: language.t("command.model.choose"),
     keybind: command.keybind("model.choose"),
-    model: local.model,
+    model: props.controls.model.selection,
-    providerID: local.model.current()?.provider?.id,
+    providerID: props.controls.model.selection.current()?.provider?.id,
-    modelName: local.model.current()?.name ?? language.t("dialog.model.select.title"),
+    modelName: props.controls.model.selection.current()?.name ?? language.t("dialog.model.select.title"),
     style: control(),
     onClose: restoreFocus,
     onUnpaidClick: () => {
       void import("@/components/dialog-select-model-unpaid").then((x) => {
-        dialog.show(() => <x.DialogSelectModelUnpaid model={local.model} />)
+        dialog.show(() => <x.DialogSelectModelUnpaid model={props.controls.model.selection} />)
       })
     },
   }))
 
   const newSession = () => props.variant === "new-session"
-  const projects = createMemo(() => layout.projects.list())
+  const projects = createMemo(() => props.controls.projects.available)
   const projectForDirectory = (directory: string | undefined) => {
     if (!directory) return
     const key = pathKey(directory)
@@ -1366,13 +1400,13 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
       (project) => pathKey(project.worktree) === key || project.sandboxes?.some((sandbox) => pathKey(sandbox) === key),
     )
   }
-  const selectedProject = createMemo(() => projectForDirectory(sdk.directory))
+  const selectedProject = createMemo(() => projectForDirectory(props.controls.projects.directory))
   const projectResults = createMemo(() => {
     const search = picker.projectSearch.trim().toLowerCase()
     if (!search) return projects()
     return projects().filter((project) => displayName(project).toLowerCase().includes(search))
   })
-  const showAgentControl = createMemo(() => settings.general.showCustomAgents() && agentNames().length > 0)
+  const showAgentControl = createMemo(() => props.controls.agents.visible && props.controls.agents.options.length > 0)
   const selectProject = (worktree: string) => {
     setPicker({
       projectOpen: false,
@@ -1382,33 +1416,11 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
       restoreFocus()
       return
     }
-    layout.projects.open(worktree)
+    props.controls.projects.select(worktree)
-    server.projects.touch(worktree)
+    restoreFocus()
-
-    // On the draft route, retarget the existing draft in place so we keep the same
-    // draft id (and its tab/prompt) instead of spawning a new draft for the new directory.
-    const draftID = search.draftId
-    if (draftID) {
-      tabsStore.updateDraft(draftID, { server: server.key, directory: worktree })
-      restoreFocus()
-      return
-    }
-
-    navigate(`/${base64Encode(worktree)}/session`)
   }
   const addProject = () => {
-    const conn = server.current
+    props.controls.projects.add(language.t("command.project.open"))
-    if (!conn) return
-    const select = (result: string | string[] | null) => {
-      const directory = Array.isArray(result) ? result[0] : result
-      if (!directory) return
-      selectProject(directory)
-    }
-    pickDirectory({
-      server: conn,
-      title: language.t("command.project.open"),
-      onSelect: select,
-    })
   }
 
   const projectPickerState = createMemo<ComposerPickerState>(() => ({
@@ -1449,11 +1461,11 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   const agentControlState = createMemo<ComposerAgentControlState>(() => ({
     title: language.t("command.agent.cycle"),
     keybind: command.keybind("agent.cycle"),
-    options: agentNames(),
+    options: props.controls.agents.options,
-    current: local.agent.current()?.name ?? "",
+    current: props.controls.agents.current,
     style: control(),
     onSelect: (value) => {
-      local.agent.set(value)
+      props.controls.agents.select(value)
       restoreFocus()
     },
   }))
@@ -1485,7 +1497,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
         t={(key) => language.t(key as Parameters<typeof language.t>[0])}
       />
       <Switch>
-        <Match when={settings.general.newLayoutDesigns()}>
+        <Match when={props.controls.newLayoutDesigns}>
           <div class="flex flex-col gap-3">
             <DockShellForm
               data-component={newSession() ? "session-new-composer" : "session-composer"}
@@ -1605,7 +1617,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                       data-component="prompt-variant-control"
                       classList={{
                         "hidden group-hover/prompt-input:block group-focus-within/prompt-input:block":
-                          !local.model.variant.current() && !store.variantOpen,
+                          !props.controls.model.selection.variant.current() && !store.variantOpen,
                       }}
                     >
                       <TooltipKeybind
@@ -1617,11 +1629,11 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                         <Select
                           size="normal"
                           options={variants()}
-                          current={local.model.variant.current() ?? "default"}
+                          current={props.controls.model.selection.variant.current() ?? "default"}
                           label={(x) => (x === "default" ? language.t("common.default") : x)}
                           onOpenChange={(open) => setStore("variantOpen", open)}
                           onSelect={(value) => {
-                            local.model.variant.set(value === "default" ? undefined : value)
+                            props.controls.model.selection.variant.set(value === "default" ? undefined : value)
                             restoreFocus()
                           }}
                           class="capitalize max-w-[160px] justify-start text-v2-text-text-faint"
@@ -1861,10 +1873,10 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                         >
                           <Select
                             size="normal"
-                            options={agentNames()}
+                            options={props.controls.agents.options}
-                            current={local.agent.current()?.name ?? ""}
+                            current={props.controls.agents.current}
                             onSelect={(value) => {
-                              local.agent.set(value)
+                              props.controls.agents.select(value)
                               restoreFocus()
                             }}
                             class="capitalize max-w-[160px] text-text-base"
@@ -1883,7 +1895,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                           style={providersShouldFadeIn() ? { animation: "fade-in 0.3s" } : undefined}
                         >
                           <Show
-                            when={providers.paid().length > 0}
+                            when={props.controls.model.paid}
                             fallback={
                               <TooltipKeybind
                                 placement="top"
@@ -1900,19 +1912,22 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                                   style={control()}
                                   onClick={() => {
                                     void import("@/components/dialog-select-model-unpaid").then((x) => {
-                                      dialog.show(() => <x.DialogSelectModelUnpaid model={local.model} />)
+                                      dialog.show(() => (
+                                        <x.DialogSelectModelUnpaid model={props.controls.model.selection} />
+                                      ))
                                     })
                                   }}
                                 >
-                                  <Show when={local.model.current()?.provider?.id}>
+                                  <Show when={props.controls.model.selection.current()?.provider?.id}>
                                     <ProviderIcon
-                                      id={local.model.current()?.provider?.id ?? ""}
+                                      id={props.controls.model.selection.current()?.provider?.id ?? ""}
                                       class="size-4 shrink-0 opacity-40 group-hover:opacity-100 transition-opacity duration-150"
                                       style={{ "will-change": "opacity", transform: "translateZ(0)" }}
                                     />
                                   </Show>
                                   <span class="truncate">
-                                    {local.model.current()?.name ?? language.t("dialog.model.select.title")}
+                                    {props.controls.model.selection.current()?.name ??
+                                      language.t("dialog.model.select.title")}
                                   </span>
                                   <Icon name="chevron-down" size="small" class="shrink-0" />
                                 </Button>
@@ -1926,7 +1941,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                               keybind={command.keybind("model.choose")}
                             >
                               <ModelSelectorPopover
-                                model={local.model}
+                                model={props.controls.model.selection}
                                 triggerAs={Button}
                                 triggerProps={{
                                   variant: "ghost",
@@ -1937,15 +1952,16 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                                 }}
                                 onClose={restoreFocus}
                               >
-                                <Show when={local.model.current()?.provider?.id}>
+                                <Show when={props.controls.model.selection.current()?.provider?.id}>
                                   <ProviderIcon
-                                    id={local.model.current()?.provider?.id ?? ""}
+                                    id={props.controls.model.selection.current()?.provider?.id ?? ""}
                                     class="size-4 shrink-0 opacity-40 group-hover:opacity-100 transition-opacity duration-150"
                                     style={{ "will-change": "opacity", transform: "translateZ(0)" }}
                                   />
                                 </Show>
                                 <span class="truncate">
-                                  {local.model.current()?.name ?? language.t("dialog.model.select.title")}
+                                  {props.controls.model.selection.current()?.name ??
+                                    language.t("dialog.model.select.title")}
                                 </span>
                                 <Icon name="chevron-down" size="small" class="shrink-0" />
                               </ModelSelectorPopover>
@@ -1966,10 +1982,10 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                               <Select
                                 size="normal"
                                 options={variants()}
-                                current={local.model.variant.current() ?? "default"}
+                                current={props.controls.model.selection.variant.current() ?? "default"}
                                 label={(x) => (x === "default" ? language.t("common.default") : x)}
                                 onSelect={(value) => {
-                                  local.model.variant.set(value === "default" ? undefined : value)
+                                  props.controls.model.selection.variant.set(value === "default" ? undefined : value)
                                   restoreFocus()
                                 }}
                                 class="capitalize max-w-[160px] text-text-base"
@@ -2180,7 +2196,9 @@ function ComposerModelControl(props: { state: ComposerModelControlState }) {
                 )}
               </Show>
               <span class="truncate">{props.state.modelName}</span>
-              <Icon name="chevron-down" size="small" class="shrink-0 text-v2-icon-icon-muted" />
+              <span class="-ml-1 shrink-0 flex size-fit">
+                <Icon name="chevron-down" size="small" class="text-v2-icon-icon-muted" />
+              </span>
             </Button>
           </TooltipKeybind>
         }
@@ -2209,7 +2227,9 @@ function ComposerModelControl(props: { state: ComposerModelControlState }) {
               )}
             </Show>
             <span class="truncate">{props.state.modelName}</span>
-            <Icon name="chevron-down" size="small" class="shrink-0 text-v2-icon-icon-muted" />
+            <span class="-ml-1 shrink-0 flex size-fit">
+              <Icon name="chevron-down" size="small" class="text-v2-icon-icon-muted" />
+            </span>
           </ModelSelectorPopover>
         </TooltipKeybind>
       </Show>

packages/app/src/components/prompt-input/attachments.ts

@@ -1,7 +1,7 @@
 import { onMount } from "solid-js"
 import { makeEventListener } from "@solid-primitives/event-listener"
 import { showToast } from "@/utils/toast"
-import { usePrompt, type ContentPart, type ImageAttachmentPart } from "@/context/prompt"
+import { type ContentPart, type ImageAttachmentPart, type usePrompt } from "@/context/prompt"
 import { useLanguage } from "@/context/language"
 import { uuid } from "@/utils/uuid"
 import { getCursorPosition } from "./editor-dom"
@@ -25,36 +25,46 @@ function dataUrl(file: File, mime: string) {
   })
 }
 
+type PromptTarget = Pick<ReturnType<ReturnType<typeof usePrompt>["capture"]>, "current" | "cursor" | "set">
+type AttachmentTarget = { prompt: PromptTarget; cursor: number | undefined }
+
+type PromptAttachmentsCoreInput = {
+  capture: () => PromptTarget
+  editor: () => HTMLDivElement | undefined
+  focusEditor?: () => void
+  addPart?: (part: ContentPart) => boolean
+  warn?: () => void
+  readClipboardImage?: () => Promise<File | null>
+  getPathForFile?: (file: File) => string
+}
+
 type PromptAttachmentsInput = {
+  prompt: ReturnType<typeof usePrompt>
   editor: () => HTMLDivElement | undefined
   isDialogActive: () => boolean
   setDraggingType: (type: "image" | "@mention" | null) => void
   focusEditor: () => void
   addPart: (part: ContentPart) => boolean
   readClipboardImage?: () => Promise<File | null>
+  getPathForFile?: (file: File) => string
 }
 
-export function createPromptAttachments(input: PromptAttachmentsInput) {
+export function createPromptAttachmentsCore(input: PromptAttachmentsCoreInput) {
-  const prompt = usePrompt()
+  const capture = (): AttachmentTarget | undefined => {
-  const language = useLanguage()
+    const prompt = input.capture()
-
+    const editor = input.editor()
-  const warn = () => {
+    if (!editor) return
-    showToast({
+    return { prompt, cursor: prompt.cursor() ?? getCursorPosition(editor) }
-      title: language.t("prompt.toast.pasteUnsupported.title"),
-      description: language.t("prompt.toast.pasteUnsupported.description"),
-    })
   }
 
-  const add = async (file: File, toast = true) => {
+  const add = async (file: File, toast = true, target = capture()) => {
+    if (!target) return false
     const mime = await attachmentMime(file)
     if (!mime) {
-      if (toast) warn()
+      if (toast) input.warn?.()
       return false
     }
 
-    const editor = input.editor()
-    if (!editor) return false
-
     const url = await dataUrl(file, mime)
     if (!url) return false
 
@@ -62,37 +72,46 @@ export function createPromptAttachments(input: PromptAttachmentsInput) {
       type: "image",
       id: uuid(),
       filename: file.name,
+      sourcePath: input.getPathForFile?.(file) || undefined,
       mime,
       dataUrl: url,
     }
-    const cursor = prompt.cursor() ?? getCursorPosition(editor)
+    target.prompt.set([...target.prompt.current(), attachment], target.cursor)
-    prompt.set([...prompt.current(), attachment], cursor)
     return true
   }
 
   const addAttachment = (file: File) => add(file)
 
-  const addAttachments = async (files: File[], toast = true) => {
+  const addAttachments = async (files: File[], toast = true, target = capture()) => {
     let found = false
 
     for (const file of files) {
-      const ok = await add(file, false)
+      const ok = await add(file, false, target)
       if (ok) found = true
     }
 
-    if (!found && files.length > 0 && toast) warn()
+    if (!found && files.length > 0 && toast) input.warn?.()
     return found
   }
 
+  const addClipboardAttachment = async (pending: Promise<File | null>, target = capture()) => {
+    const file = await pending
+    if (!file) return false
+    return add(file, true, target)
+  }
+
   const removeAttachment = (id: string) => {
-    const current = prompt.current()
+    const target = input.capture()
+    const current = target.current()
     const next = current.filter((part) => part.type !== "image" || part.id !== id)
-    prompt.set(next, prompt.cursor())
+    target.set(next, target.cursor())
   }
 
   const handlePaste = async (event: ClipboardEvent) => {
     const clipboardData = event.clipboardData
     if (!clipboardData) return
+    const target = capture()
+    if (!target) return
 
     event.preventDefault()
     event.stopPropagation()
@@ -104,7 +123,7 @@ export function createPromptAttachments(input: PromptAttachmentsInput) {
     })
 
     if (files.length > 0) {
-      await addAttachments(files)
+      await addAttachments(files, true, target)
       return
     }
 
@@ -112,11 +131,7 @@ export function createPromptAttachments(input: PromptAttachmentsInput) {
 
     // Desktop: Browser clipboard has no images and no text, try platform's native clipboard for images
     if (input.readClipboardImage && !plainText) {
-      const file = await input.readClipboardImage()
+      if (await addClipboardAttachment(input.readClipboardImage(), target)) return
-      if (file) {
-        await addAttachment(file)
-        return
-      }
     }
 
     if (!plainText) return
@@ -124,9 +139,9 @@ export function createPromptAttachments(input: PromptAttachmentsInput) {
     const text = normalizePaste(plainText)
 
     const put = () => {
-      if (input.addPart({ type: "text", content: text, start: 0, end: 0 })) return true
+      if (input.addPart?.({ type: "text", content: text, start: 0, end: 0 })) return true
-      input.focusEditor()
+      input.focusEditor?.()
-      return input.addPart({ type: "text", content: text, start: 0, end: 0 })
+      return input.addPart?.({ type: "text", content: text, start: 0, end: 0 }) ?? false
     }
 
     if (pasteMode(text) === "manual") {
@@ -140,6 +155,28 @@ export function createPromptAttachments(input: PromptAttachmentsInput) {
     put()
   }
 
+  return {
+    addAttachment,
+    addAttachments,
+    addClipboardAttachment,
+    removeAttachment,
+    handlePaste,
+  }
+}
+
+export function createPromptAttachments(input: PromptAttachmentsInput) {
+  const language = useLanguage()
+  const attachments = createPromptAttachmentsCore({
+    ...input,
+    capture: input.prompt.capture,
+    warn: () => {
+      showToast({
+        title: language.t("prompt.toast.pasteUnsupported.title"),
+        description: language.t("prompt.toast.pasteUnsupported.description"),
+      })
+    },
+  })
+
   const handleGlobalDragOver = (event: DragEvent) => {
     if (input.isDialogActive()) return
 
@@ -178,7 +215,7 @@ export function createPromptAttachments(input: PromptAttachmentsInput) {
     const dropped = event.dataTransfer?.files
     if (!dropped) return
 
-    await addAttachments(Array.from(dropped))
+    await attachments.addAttachments(Array.from(dropped))
   }
 
   onMount(() => {
@@ -187,10 +224,5 @@ export function createPromptAttachments(input: PromptAttachmentsInput) {
     makeEventListener(document, "drop", handleGlobalDrop)
   })
 
-  return {
+  return attachments
-    addAttachment,
-    addAttachments,
-    removeAttachment,
-    handlePaste,
-  }
 }

packages/app/src/components/prompt-input/build-request-parts.test.ts

@@ -75,6 +75,31 @@ describe("buildRequestParts", () => {
     expect(files.map((part) => (part.type === "file" ? part.filename : ""))).toEqual(["a.png", "b.pdf"])
   })
 
+  test("preserves an external attachment source path for the model", () => {
+    const result = buildRequestParts({
+      prompt: [],
+      context: [],
+      images: [
+        {
+          type: "image",
+          id: "img_external",
+          filename: "opencode.global.dat",
+          sourcePath: "C:\\Users\\Luke\\AppData\\Roaming\\ai.opencode.desktop.beta\\opencode.global.dat",
+          mime: "text/plain",
+          dataUrl: "data:text/plain;base64,AAA",
+        },
+      ],
+      text: "inspect this",
+      messageID: "msg_external",
+      sessionID: "ses_external",
+      sessionDirectory: "C:\\Repos\\sst\\opencode",
+    })
+
+    expect(result.requestParts.find((part) => part.type === "file")?.filename).toBe(
+      "C:\\Users\\Luke\\AppData\\Roaming\\ai.opencode.desktop.beta\\opencode.global.dat",
+    )
+  })
+
   test("deduplicates context files when prompt already includes same path", () => {
     const prompt: Prompt = [{ type: "file", path: "src/foo.ts", content: "@src/foo.ts", start: 0, end: 11 }]
 

packages/app/src/components/prompt-input/build-request-parts.ts

@@ -188,7 +188,7 @@ export function buildRequestParts(input: BuildRequestPartsInput) {
       type: "file",
       mime: attachment.mime,
       url: attachment.dataUrl,
-      filename: attachment.filename,
+      filename: attachment.sourcePath ?? attachment.filename,
     } satisfies PromptRequestPart
   })
 

packages/app/src/components/prompt-input/context-items.tsx

@@ -50,7 +50,7 @@ export const PromptContextItems: Component<ContextItemsProps> = (props) => {
                 >
                   <div class="flex items-center gap-1.5">
                     <FileIcon node={{ path: item.path, type: "file" }} class="shrink-0 size-3.5" />
-                    <div class="flex items-center text-11-regular min-w-0 font-medium">
+                    <div class="flex items-center text-[12px] min-w-0 font-medium leading-5">
                       <span class="text-text-strong whitespace-nowrap">{label}</span>
                       <Show when={item.selection}>
                         {(sel) => (

packages/app/src/components/prompt-input/submission-state.ts

@@ -0,0 +1,31 @@
+import { type ContextItem, type Prompt, type usePrompt } from "@/context/prompt"
+
+type PromptTarget = ReturnType<ReturnType<typeof usePrompt>["capture"]>
+
+export function createPromptSubmissionState(input: {
+  target: PromptTarget
+  prompt: Prompt
+  context: (ContextItem & { key: string })[]
+}) {
+  let target = input.target
+  let cleared: Prompt | undefined
+
+  return {
+    prompt: input.prompt,
+    context: input.context,
+    target: () => target,
+    clear() {
+      target.reset()
+      cleared = target.current()
+    },
+    retarget(next: PromptTarget) {
+      input.context.forEach(next.context.add)
+      target = next
+    },
+    current: (value: PromptTarget) => target === value,
+    restore() {
+      if (cleared !== undefined && target.current() !== cleared) return
+      return { target, prompt: input.prompt, context: input.context }
+    },
+  }
+}

packages/app/src/components/prompt-input/submit.test.ts

@@ -20,12 +20,31 @@ const storedSessions: Record<string, Array<{ id: string; title?: string }>> = {}
 const promoted: Array<{ directory: string; sessionID: string }> = []
 const sentShell: string[] = []
 const syncedDirectories: string[] = []
+const promotedDrafts: Array<{ draftID: string; server: string; sessionId: string }> = []
 
 let params: { id?: string } = {}
+let search: { draftId?: string } = {}
 let selected = "/repo/worktree-a"
 let variant: string | undefined
 
 const promptValue: Prompt = [{ type: "text", content: "ls", start: 0, end: 2 }]
+const prompt = {
+  ready: Object.assign(() => true, { promise: Promise.resolve(true) }),
+  current: () => promptValue,
+  cursor: () => 0,
+  dirty: () => true,
+  reset: () => undefined,
+  set: () => undefined,
+  context: {
+    add: () => undefined,
+    remove: () => undefined,
+    removeComment: () => undefined,
+    updateComment: () => undefined,
+    replaceComments: () => undefined,
+    items: () => [],
+  },
+  capture: () => prompt,
+}
 
 const clientFor = (directory: string) => {
   createdClients.push(directory)
@@ -62,7 +81,7 @@ beforeAll(async () => {
     useNavigate: () => () => undefined,
     useParams: () => params,
     useLocation: () => ({}),
-    useSearchParams: () => [{}, () => undefined],
+    useSearchParams: () => [search, () => undefined],
   }))
 
   mock.module("@opencode-ai/sdk/v2/client", () => ({
@@ -73,6 +92,7 @@ beforeAll(async () => {
   }))
 
   mock.module("@opencode-ai/ui/toast", () => ({
+    Toast: { Region: () => null },
     showToast: () => 0,
   }))
 
@@ -111,21 +131,15 @@ beforeAll(async () => {
 
   mock.module("@/context/tabs", () => ({
     useTabs: () => ({
-      promoteDraft: () => undefined,
+      draft: () => ({ server: "project-server" }),
+      promoteDraft: (draftID: string, session: { server: string; sessionId: string }) => {
+        promotedDrafts.push({ draftID, ...session })
+      },
     }),
   }))
 
   mock.module("@/context/prompt", () => ({
-    usePrompt: () => ({
+    usePrompt: () => prompt,
-      current: () => promptValue,
-      reset: () => undefined,
-      set: () => undefined,
-      context: {
-        add: () => undefined,
-        remove: () => undefined,
-        items: () => [],
-      },
-    }),
   }))
 
   mock.module("@/context/layout", () => ({
@@ -147,12 +161,12 @@ beforeAll(async () => {
           return clientFor(opts.directory)
         },
       }
-      return sdk
+      return () => sdk
     },
   }))
 
   mock.module("@/context/sync", () => ({
-    useSync: () => ({
+    useSync: () => () => ({
       data: { command: [] },
       session: {
         optimistic: {
@@ -176,7 +190,11 @@ beforeAll(async () => {
   }))
 
   mock.module("@/context/server-sync", () => ({
-    useServerSync: () => ({
+    useServerSync: () => () => ({
+      session: {
+        remember: () => undefined,
+        set: () => undefined,
+      },
       child: (directory: string) => {
         syncedDirectories.push(directory)
         storedSessions[directory] ??= []
@@ -221,7 +239,9 @@ beforeEach(() => {
   optimistic.length = 0
   optimisticSeeded.length = 0
   promoted.length = 0
+  promotedDrafts.length = 0
   params = {}
+  search = {}
   sentShell.length = 0
   syncedDirectories.length = 0
   selected = "/repo/worktree-a"
@@ -232,6 +252,7 @@ beforeEach(() => {
 describe("prompt submit worktree selection", () => {
   test("reads the latest worktree accessor value per submit", async () => {
     const submit = createPromptSubmit({
+      prompt,
       info: () => undefined,
       imageAttachments: () => [],
       commentCount: () => 0,
@@ -269,6 +290,7 @@ describe("prompt submit worktree selection", () => {
 
   test("applies auto-accept to newly created sessions", async () => {
     const submit = createPromptSubmit({
+      prompt,
       info: () => undefined,
       imageAttachments: () => [],
       commentCount: () => 0,
@@ -294,11 +316,39 @@ describe("prompt submit worktree selection", () => {
     expect(enabledAutoAccept).toEqual([{ sessionID: "session-1", directory: "/repo/worktree-a" }])
   })
 
+  test("promotes drafts using the selected project's server", async () => {
+    search = { draftId: "draft-1" }
+    const submit = createPromptSubmit({
+      prompt,
+      info: () => undefined,
+      imageAttachments: () => [],
+      commentCount: () => 0,
+      autoAccept: () => false,
+      mode: () => "normal",
+      working: () => false,
+      editor: () => undefined,
+      queueScroll: () => undefined,
+      promptLength: (value) => value.reduce((sum, part) => sum + ("content" in part ? part.content.length : 0), 0),
+      addToHistory: () => undefined,
+      resetHistoryNavigation: () => undefined,
+      setMode: () => undefined,
+      setPopover: () => undefined,
+      newSessionWorktree: () => selected,
+      onNewSessionWorktreeReset: () => undefined,
+      onSubmit: () => undefined,
+    })
+
+    await submit.handleSubmit({ preventDefault: () => undefined } as unknown as Event)
+
+    expect(promotedDrafts).toEqual([{ draftID: "draft-1", server: "project-server", sessionId: "session-1" }])
+  })
+
   test("includes the selected variant on optimistic prompts", async () => {
     params = { id: "session-1" }
     variant = "high"
 
     const submit = createPromptSubmit({
+      prompt,
       info: () => ({ id: "session-1" }),
       imageAttachments: () => [],
       commentCount: () => 0,
@@ -330,6 +380,7 @@ describe("prompt submit worktree selection", () => {
 
   test("seeds new sessions before optimistic prompts are added", async () => {
     const submit = createPromptSubmit({
+      prompt,
       info: () => undefined,
       imageAttachments: () => [],
       commentCount: () => 0,

packages/app/src/components/prompt-input/submit.ts

@@ -4,23 +4,22 @@ import { base64Encode } from "@opencode-ai/core/util/encode"
 import { Binary } from "@opencode-ai/core/util/binary"
 import { useNavigate, useParams, useSearchParams } from "@solidjs/router"
 import { batch, type Accessor } from "solid-js"
-import type { FileSelection } from "@/context/file"
-import { useServer } from "@/context/server"
 import { useTabs } from "@/context/tabs"
-import { useServerSync } from "@/context/server-sync"
+import { useServerSync, type ServerSync } from "@/context/server-sync"
 import { useLanguage } from "@/context/language"
 import { useLayout } from "@/context/layout"
 import { useLocal } from "@/context/local"
 import { usePermission } from "@/context/permission"
-import { type ContextItem, type ImageAttachmentPart, type Prompt, usePrompt } from "@/context/prompt"
+import { type ContextItem, type ImageAttachmentPart, type Prompt, type usePrompt } from "@/context/prompt"
-import { useSDK } from "@/context/sdk"
+import { useSDK, type DirectorySDK } from "@/context/sdk"
-import { useSync } from "@/context/sync"
+import { useSync, type DirectorySync } from "@/context/sync"
 import { Identifier } from "@/utils/id"
 import { Worktree as WorktreeState } from "@/utils/worktree"
 import { buildRequestParts } from "./build-request-parts"
 import { setCursorPosition } from "./editor-dom"
 import { formatServerError } from "@/utils/server-errors"
 import { ScopedKey } from "@/utils/server-scope"
+import { createPromptSubmissionState } from "./submission-state"
 
 type PendingPrompt = {
   abort: AbortController
@@ -40,9 +39,9 @@ export type FollowupDraft = {
 }
 
 type FollowupSendInput = {
-  client: ReturnType<typeof useSDK>["client"]
+  client: DirectorySDK["client"]
-  serverSync: ReturnType<typeof useServerSync>
+  serverSync: ServerSync
-  sync: ReturnType<typeof useSync>
+  sync: DirectorySync
   draft: FollowupDraft
   messageID?: string
   optimisticBusy?: boolean
@@ -56,16 +55,14 @@ const draftImages = (prompt: Prompt) => prompt.filter((part): part is ImageAttac
 export async function sendFollowupDraft(input: FollowupSendInput) {
   const text = draftText(input.draft.prompt)
   const images = draftImages(input.draft.prompt)
-  const [, setStore] = input.serverSync.child(input.draft.sessionDirectory)
-
   const setBusy = () => {
     if (!input.optimisticBusy) return
-    setStore("session_status", input.draft.sessionID, { type: "busy" })
+    input.serverSync.session.set("session_status", input.draft.sessionID, { type: "busy" })
   }
 
   const setIdle = () => {
     if (!input.optimisticBusy) return
-    setStore("session_status", input.draft.sessionID, { type: "idle" })
+    input.serverSync.session.set("session_status", input.draft.sessionID, { type: "idle" })
   }
 
   const wait = async () => {
@@ -174,6 +171,7 @@ export async function sendFollowupDraft(input: FollowupSendInput) {
 }
 
 type PromptSubmitInput = {
+  prompt: ReturnType<typeof usePrompt>
   info: Accessor<{ id: string } | undefined>
   imageAttachments: Accessor<ImageAttachmentPart[]>
   commentCount: Accessor<number>
@@ -195,15 +193,6 @@ type PromptSubmitInput = {
   onSubmit?: () => void
 }
 
-type CommentItem = {
-  path: string
-  selection?: FileSelection
-  comment?: string
-  commentID?: string
-  commentOrigin?: "review" | "file"
-  preview?: string
-}
-
 export function createPromptSubmit(input: PromptSubmitInput) {
   const navigate = useNavigate()
   const sdk = useSDK()
@@ -211,14 +200,13 @@ export function createPromptSubmit(input: PromptSubmitInput) {
   const serverSync = useServerSync()
   const local = useLocal()
   const permission = usePermission()
-  const prompt = usePrompt()
+  const prompt = input.prompt
   const layout = useLayout()
   const language = useLanguage()
   const params = useParams()
   const [search] = useSearchParams<{ draftId?: string }>()
-  const server = useServer()
   const tabs = useTabs()
-  const pendingKey = (sessionID: string) => ScopedKey.from(sdk.scope, sessionID)
+  const pendingKey = (sessionID: string) => ScopedKey.from(sdk().scope, sessionID)
 
   const errorMessage = (err: unknown) => {
     if (err && typeof err === "object" && "data" in err) {
@@ -233,9 +221,7 @@ export function createPromptSubmit(input: PromptSubmitInput) {
     const sessionID = params.id
     if (!sessionID) return Promise.resolve()
 
-    serverSync.todo.set(sessionID, [])
+    serverSync().session.set("todo", sessionID, [])
-    const [, setStore] = serverSync.child(sdk.directory)
-    setStore("todo", sessionID, [])
 
     input.onAbort?.()
 
@@ -247,16 +233,19 @@ export function createPromptSubmit(input: PromptSubmitInput) {
       pending.delete(key)
       return Promise.resolve()
     }
-    return sdk.client.session
+    return sdk()
-      .abort({
+      .client.session.abort({
         sessionID,
       })
       .catch(() => {})
   }
 
-  const restoreCommentItems = (items: CommentItem[]) => {
+  const restoreCommentItems = (
+    target: ReturnType<ReturnType<typeof usePrompt>["capture"]>,
+    items: (ContextItem & { key: string })[],
+  ) => {
     for (const item of items) {
-      prompt.context.add({
+      target.context.add({
         type: "file",
         path: item.path,
         selection: item.selection,
@@ -268,20 +257,15 @@ export function createPromptSubmit(input: PromptSubmitInput) {
     }
   }
 
-  const removeCommentItems = (items: { key: string }[]) => {
+  const clearContext = (target: ReturnType<ReturnType<typeof usePrompt>["capture"]>) => {
-    for (const item of items) {
+    for (const item of target.context.items()) {
-      prompt.context.remove(item.key)
+      target.context.remove(item.key)
-    }
-  }
-
-  const clearContext = () => {
-    for (const item of prompt.context.items()) {
-      prompt.context.remove(item.key)
     }
   }
 
   const seed = (dir: string, info: Session) => {
-    const [, setStore] = serverSync.child(dir)
+    serverSync().session.remember(info)
+    const [, setStore] = serverSync().child(dir)
     setStore("session", (list: Session[]) => {
       const result = Binary.search(list, info.id, (item) => item.id)
       const next = [...list]
@@ -297,7 +281,14 @@ export function createPromptSubmit(input: PromptSubmitInput) {
   const handleSubmit = async (event: Event) => {
     event.preventDefault()
 
-    const currentPrompt = prompt.current()
+    const target = prompt.capture()
+    const submission = createPromptSubmissionState({
+      target,
+      prompt: target.current(),
+      context: target.context.items().slice(),
+    })
+    const currentPrompt = submission.prompt
+    const context = submission.context
     const text = currentPrompt.map((part) => ("content" in part ? part.content : "")).join("")
     const images = input.imageAttachments().slice()
     const mode = input.mode()
@@ -321,13 +312,13 @@ export function createPromptSubmit(input: PromptSubmitInput) {
     input.addToHistory(currentPrompt, mode)
     input.resetHistoryNavigation()
 
-    const projectDirectory = sdk.directory
+    const projectDirectory = sdk().directory
     const isNewSession = !params.id
     const shouldAutoAccept = isNewSession && input.autoAccept()
     const worktreeSelection = input.newSessionWorktree?.() || "main"
 
     let sessionDirectory = projectDirectory
-    let client = sdk.client
+    let client = sdk().client
 
     if (isNewSession) {
       if (worktreeSelection === "create") {
@@ -349,7 +340,7 @@ export function createPromptSubmit(input: PromptSubmitInput) {
           })
           return
         }
-        WorktreeState.pending(sdk.scope, createdWorktree.directory)
+        WorktreeState.pending(sdk().scope, createdWorktree.directory)
         sessionDirectory = createdWorktree.directory
       }
 
@@ -358,11 +349,11 @@ export function createPromptSubmit(input: PromptSubmitInput) {
       }
 
       if (sessionDirectory !== projectDirectory) {
-        client = sdk.createClient({
+        client = sdk().createClient({
           directory: sessionDirectory,
           throwOnError: true,
         })
-        serverSync.child(sessionDirectory)
+        serverSync().child(sessionDirectory)
       }
 
       input.onNewSessionWorktreeReset?.()
@@ -387,13 +378,9 @@ export function createPromptSubmit(input: PromptSubmitInput) {
         local.session.promote(sessionDirectory, session.id)
         layout.handoff.setTabs(base64Encode(sessionDirectory), session.id)
         const draftID = search.draftId
-        if (draftID)
+        if (draftID) tabs.promoteDraft(draftID, { server: tabs.draft(draftID).server, sessionId: session.id })
-          tabs.promoteDraft(draftID, {
-            server: server.key,
-            dirBase64: base64Encode(sessionDirectory),
-            sessionId: session.id,
-          })
         else navigate(`/${base64Encode(sessionDirectory)}/session/${session.id}`)
+        submission.retarget(prompt.capture({ dir: base64Encode(sessionDirectory), id: session.id }))
       }
     }
     if (!session) {
@@ -409,7 +396,6 @@ export function createPromptSubmit(input: PromptSubmitInput) {
       providerID: currentModel.provider.id,
     }
     const agent = currentAgent.name
-    const context = prompt.context.items().slice()
     const draft: FollowupDraft = {
       sessionID: session.id,
       sessionDirectory,
@@ -421,13 +407,16 @@ export function createPromptSubmit(input: PromptSubmitInput) {
     }
 
     const clearInput = () => {
-      prompt.reset()
+      submission.clear()
       input.setMode("normal")
       input.setPopover(null)
     }
 
     const restoreInput = () => {
-      prompt.set(currentPrompt, input.promptLength(currentPrompt))
+      const restored = submission.restore()
+      if (!restored) return false
+      restored.target.set(restored.prompt, input.promptLength(restored.prompt))
+      if (!submission.current(prompt.capture())) return true
       input.setMode(mode)
       input.setPopover(null)
       requestAnimationFrame(() => {
@@ -437,11 +426,12 @@ export function createPromptSubmit(input: PromptSubmitInput) {
         setCursorPosition(editor, input.promptLength(currentPrompt))
         input.queueScroll()
       })
+      return true
     }
 
     if (!isNewSession && mode === "normal" && input.shouldQueue?.()) {
       input.onQueue?.(draft)
-      clearContext()
+      clearContext(submission.target())
       clearInput()
       return
     }
@@ -470,7 +460,7 @@ export function createPromptSubmit(input: PromptSubmitInput) {
     if (text.startsWith("/")) {
       const [cmdName, ...args] = text.split(" ")
       const commandName = cmdName.slice(1)
-      const customCommand = sync.data.command.find((c) => c.name === commandName)
+      const customCommand = sync().data.command.find((c) => c.name === commandName)
       if (customCommand) {
         clearInput()
         client.session
@@ -504,32 +494,31 @@ export function createPromptSubmit(input: PromptSubmitInput) {
     const messageID = Identifier.ascending("message")
 
     const removeOptimisticMessage = () => {
-      sync.session.optimistic.remove({
+      sync().session.optimistic.remove({
         directory: sessionDirectory,
         sessionID: session.id,
         messageID,
       })
     }
 
-    removeCommentItems(commentItems)
+    for (const item of commentItems) submission.target().context.remove(item.key)
     clearInput()
 
     const waitForWorktree = async () => {
-      const worktree = WorktreeState.get(sdk.scope, sessionDirectory)
+      const worktree = WorktreeState.get(sdk().scope, sessionDirectory)
       if (!worktree || worktree.status !== "pending") return true
 
       if (sessionDirectory === projectDirectory) {
-        sync.set("session_status", session.id, { type: "busy" })
+        sync().set("session_status", session.id, { type: "busy" })
       }
 
       const controller = new AbortController()
       const cleanup = () => {
         if (sessionDirectory === projectDirectory) {
-          sync.set("session_status", session.id, { type: "idle" })
+          sync().set("session_status", session.id, { type: "idle" })
         }
         removeOptimisticMessage()
-        restoreCommentItems(commentItems)
+        if (restoreInput()) restoreCommentItems(submission.target(), commentItems)
-        restoreInput()
       }
 
       pending.set(pendingKey(session.id), { abort: controller, cleanup })
@@ -559,12 +548,14 @@ export function createPromptSubmit(input: PromptSubmitInput) {
         }, timeoutMs)
       })
 
-      const result = await Promise.race([WorktreeState.wait(sdk.scope, sessionDirectory), abortWait, timeout]).finally(
+      const result = await Promise.race([
-        () => {
+        WorktreeState.wait(sdk().scope, sessionDirectory),
-          if (timer.id === undefined) return
+        abortWait,
-          clearTimeout(timer.id)
+        timeout,
-        },
+      ]).finally(() => {
-      )
+        if (timer.id === undefined) return
+        clearTimeout(timer.id)
+      })
       pending.delete(pendingKey(session.id))
       if (controller.signal.aborted) return false
       if (result.status === "failed") throw new Error(result.message)
@@ -573,8 +564,8 @@ export function createPromptSubmit(input: PromptSubmitInput) {
 
     void sendFollowupDraft({
       client,
-      sync,
+      sync: sync(),
-      serverSync,
+      serverSync: serverSync(),
       draft,
       messageID,
       optimisticBusy: sessionDirectory === projectDirectory,
@@ -582,15 +573,14 @@ export function createPromptSubmit(input: PromptSubmitInput) {
     }).catch((err) => {
       pending.delete(pendingKey(session.id))
       if (sessionDirectory === projectDirectory) {
-        sync.set("session_status", session.id, { type: "idle" })
+        sync().set("session_status", session.id, { type: "idle" })
       }
       showToast({
         title: language.t("prompt.toast.promptSendFailed.title"),
         description: errorMessage(err),
       })
       removeOptimisticMessage()
-      restoreCommentItems(commentItems)
+      if (restoreInput()) restoreCommentItems(submission.target(), commentItems)
-      restoreInput()
     })
   }
 

packages/app/src/components/prompt-input/transient-state.ts

@@ -0,0 +1,43 @@
+import { createComputed, on, type Accessor } from "solid-js"
+import { createStore, type SetStoreFunction } from "solid-js/store"
+import type { PromptHistoryEntry } from "./history"
+
+export type PromptInputTransientState = {
+  popover: "at" | "slash" | null
+  historyIndex: number
+  savedPrompt: PromptHistoryEntry | null
+  placeholder: number
+  draggingType: "image" | "@mention" | null
+  mode: "normal" | "shell"
+  applyingHistory: boolean
+  variantOpen: boolean
+}
+
+function resetPromptInputTransientState(setStore: SetStoreFunction<PromptInputTransientState>) {
+  setStore({
+    popover: null,
+    historyIndex: -1,
+    savedPrompt: null,
+    draggingType: null,
+    mode: "normal",
+    applyingHistory: false,
+    variantOpen: false,
+  })
+}
+
+export function createPromptInputTransientState(identity: Accessor<unknown>, placeholder: number) {
+  const [store, setStore] = createStore<PromptInputTransientState>({
+    popover: null,
+    historyIndex: -1,
+    savedPrompt: null,
+    placeholder,
+    draggingType: null,
+    mode: "normal",
+    applyingHistory: false,
+    variantOpen: false,
+  })
+
+  createComputed(on(identity, () => resetPromptInputTransientState(setStore), { defer: true }))
+
+  return [store, setStore] as const
+}

packages/app/src/components/server/server-row-menu.tsx

@@ -19,7 +19,7 @@ export const ServerRowMenu: Component<{
   const isDefault = () => props.controller.defaultKey() === key
 
   return (
-    <MenuV2 gutter={4} modal={false} placement="bottom-end" open={props.open} onOpenChange={props.onOpenChange}>
+    <MenuV2 gutter={6} modal={false} placement="bottom-end" open={props.open} onOpenChange={props.onOpenChange}>
       <MenuV2.Trigger
         as={IconButtonV2}
         variant="ghost-muted"

packages/app/src/components/server/server-row.tsx

@@ -117,7 +117,7 @@ export function ServerHealthIndicator(props: { health?: ServerHealth }) {
   return (
     <div
       classList={{
-        "size-1.5 rounded-full shrink-0": true,
+        "size-1.5 rounded-full shrink-0 my-[3.5px]": true,
         "bg-icon-success-base": props.health?.healthy === true,
         "bg-icon-critical-base": props.health?.healthy === false,
         "bg-border-weak-base": props.health === undefined,

packages/app/src/components/session-context-usage.tsx

@@ -8,6 +8,7 @@ import { useLayout } from "@/context/layout"
 import { useSync } from "@/context/sync"
 import { useLanguage } from "@/context/language"
 import { useProviders } from "@/hooks/use-providers"
+import { useSDK } from "@/context/sdk"
 import { getSessionContextMetrics } from "@/components/session/session-context-metrics"
 import { useSessionLayout } from "@/pages/session/session-layout"
 import { createSessionTabs } from "@/pages/session/helpers"
@@ -33,7 +34,8 @@ export function SessionContextUsage(props: SessionContextUsageProps) {
   const file = useFile()
   const layout = useLayout()
   const language = useLanguage()
-  const providers = useProviders()
+  const sdk = useSDK()
+  const providers = useProviders(() => sdk().directory)
   const { params, tabs, view } = useSessionLayout()
 
   const variant = createMemo(() => props.variant ?? "button")
@@ -42,7 +44,7 @@ export function SessionContextUsage(props: SessionContextUsageProps) {
     pathFromTab: file.pathFromTab,
     normalizeTab: (tab) => (tab.startsWith("file://") ? file.tab(tab) : tab),
   })
-  const messages = createMemo(() => (params.id ? (sync.data.message[params.id] ?? []) : []))
+  const messages = createMemo(() => (params.id ? (sync().data.message[params.id] ?? []) : []))
 
   const usd = createMemo(
     () =>

packages/app/src/components/session/session-context-tab.tsx

@@ -7,12 +7,13 @@ import { same } from "@/utils/same"
 import { Icon } from "@opencode-ai/ui/icon"
 import { Accordion } from "@opencode-ai/ui/accordion"
 import { StickyAccordionHeader } from "@opencode-ai/ui/sticky-accordion-header"
-import { File } from "@opencode-ai/ui/file"
+import { File } from "@opencode-ai/session-ui/file"
-import { Markdown } from "@opencode-ai/ui/markdown"
+import { Markdown } from "@opencode-ai/session-ui/markdown"
 import { ScrollView } from "@opencode-ai/ui/scroll-view"
 import type { Message, Part, UserMessage } from "@opencode-ai/sdk/v2/client"
 import { useLanguage } from "@/context/language"
 import { useProviders } from "@/hooks/use-providers"
+import { useSDK } from "@/context/sdk"
 import { useSessionLayout } from "@/pages/session/session-layout"
 import { getSessionContextMetrics } from "./session-context-metrics"
 import { estimateSessionContextBreakdown, type SessionContextBreakdownKey } from "./session-context-breakdown"
@@ -93,16 +94,17 @@ const emptyUserMessages: UserMessage[] = []
 export function SessionContextTab() {
   const sync = useSync()
   const language = useLanguage()
-  const providers = useProviders()
+  const sdk = useSDK()
+  const providers = useProviders(() => sdk().directory)
   const { params, view } = useSessionLayout()
 
-  const info = createMemo(() => (params.id ? sync.session.get(params.id) : undefined))
+  const info = createMemo(() => (params.id ? sync().session.get(params.id) : undefined))
 
   const messages = createMemo(
     () => {
       const id = params.id
       if (!id) return emptyMessages
-      return (sync.data.message[id] ?? []) as Message[]
+      return (sync().data.message[id] ?? []) as Message[]
     },
     emptyMessages,
     { equals: same },
@@ -180,7 +182,7 @@ export function SessionContextTab() {
         if (!c?.input) return []
         return estimateSessionContextBreakdown({
           messages: messages(),
-          parts: sync.data.part as Record<string, Part[] | undefined>,
+          parts: sync().data.part as Record<string, Part[] | undefined>,
           input: c.input,
           systemPrompt: systemPrompt(),
         })
@@ -221,7 +223,7 @@ export function SessionContextTab() {
   let scroll: HTMLDivElement | undefined
   let frame: number | undefined
   let pending: { x: number; y: number } | undefined
-  const getParts = (id: string) => (sync.data.part[id] ?? []) as Part[]
+  const getParts = (id: string) => (sync().data.part[id] ?? []) as Part[]
 
   const restoreScroll = () => {
     const el = scroll

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

@@ -10,6 +10,7 @@ import { Tooltip, TooltipKeybind } from "@opencode-ai/ui/tooltip"
 import { getFilename } from "@opencode-ai/core/util/path"
 import { createEffect, createMemo, createSignal, For, onMount, Show } from "solid-js"
 import { createStore } from "solid-js/store"
+import { createMediaQuery } from "@solid-primitives/media"
 import { Portal } from "solid-js/web"
 import { useCommand } from "@/context/command"
 import { useLanguage } from "@/context/language"
@@ -27,6 +28,9 @@ import { Persist, persisted } from "@/utils/persist"
 import { StatusPopover, StatusPopoverV2 } from "../status-popover"
 import { IconButtonV2 } from "@opencode-ai/ui/v2/icon-button-v2"
 import { Icon as IconV2 } from "@opencode-ai/ui/v2/icon"
+import { KeybindV2 } from "@opencode-ai/ui/v2/keybind-v2"
+import { TooltipV2 } from "@opencode-ai/ui/v2/tooltip-v2"
+import { reviewTooltipKeybind } from "../command-tooltip-keybind"
 
 const OPEN_APPS = [
   "vscode",
@@ -155,11 +159,10 @@ export function SessionHeader() {
   })
   const hotkey = createMemo(() => command.keybind("file.open"))
   const os = createMemo(() => detectOS(platform))
-  const isDesktopV2 = createMemo(() => platform.platform === "desktop" && settings.general.newLayoutDesigns())
+  const isV2 = settings.general.newLayoutDesigns
-  const search = createMemo(() => (isDesktopV2() ? settings.general.showSearch() : true))
+  const search = settings.visibility.search
-  const tree = createMemo(() => (isDesktopV2() ? settings.general.showFileTree() : true))
+  const status = settings.visibility.status
-  const term = createMemo(() => (isDesktopV2() ? settings.general.showTerminal() : true))
+  const isDesktop = createMediaQuery("(min-width: 768px)")
-  const status = createMemo(() => (isDesktopV2() ? settings.general.showStatus() : true))
 
   const [exists, setExists] = createStore<Partial<Record<OpenApp, boolean>>>({
     finder: true,
@@ -231,13 +234,14 @@ export function SessionHeader() {
   )
   const opening = createMemo(() => openRequest.app !== undefined)
   const tint = createMemo(() =>
-    messageAgentColor(params.id ? sync.data.message[params.id] : undefined, sync.data.agent),
+    messageAgentColor(params.id ? sync().data.message[params.id] : undefined, sync().data.agent),
   )
   const v2ActionsState = createMemo<SessionHeaderV2ActionsState>(() => ({
     statusVisible: status(),
     statusLabel: language.t("status.popover.trigger"),
     reviewLabel: language.t("command.review.toggle"),
-    reviewKeybind: command.keybind("review.toggle"),
+    reviewKeybind: reviewTooltipKeybind(command),
+    reviewVisible: isDesktop(),
     reviewOpened: view().reviewPanel.opened(),
     onReviewToggle: () => view().reviewPanel.toggle(),
   }))
@@ -322,7 +326,7 @@ export function SessionHeader() {
         {(mount) => (
           <Portal mount={mount()}>
             <Show
-              when={isDesktopV2}
+              when={isV2}
               fallback={
                 <div class="flex items-center gap-2">
                   <Show when={projectDirectory()}>
@@ -444,23 +448,21 @@ export function SessionHeader() {
                         <StatusPopover />
                       </Tooltip>
                     </Show>
-                    <Show when={term()}>
+                    <TooltipKeybind
-                      <TooltipKeybind
+                      title={language.t("command.terminal.toggle")}
-                        title={language.t("command.terminal.toggle")}
+                      keybind={command.keybind("terminal.toggle")}
-                        keybind={command.keybind("terminal.toggle")}
+                    >
+                      <Button
+                        variant="ghost"
+                        class="group/terminal-toggle titlebar-icon w-8 h-6 p-0 box-border shrink-0"
+                        onClick={toggleTerminal}
+                        aria-label={language.t("command.terminal.toggle")}
+                        aria-expanded={view().terminal.opened()}
+                        aria-controls="terminal-panel"
                       >
-                        <Button
+                        <Icon size="small" name={view().terminal.opened() ? "terminal-active" : "terminal"} />
-                          variant="ghost"
+                      </Button>
-                          class="group/terminal-toggle titlebar-icon w-8 h-6 p-0 box-border shrink-0"
+                    </TooltipKeybind>
-                          onClick={toggleTerminal}
-                          aria-label={language.t("command.terminal.toggle")}
-                          aria-expanded={view().terminal.opened()}
-                          aria-controls="terminal-panel"
-                        >
-                          <Icon size="small" name={view().terminal.opened() ? "terminal-active" : "terminal"} />
-                        </Button>
-                      </TooltipKeybind>
-                    </Show>
 
                     <div class="hidden md:flex items-center gap-1 shrink-0">
                       <TooltipKeybind
@@ -479,32 +481,30 @@ export function SessionHeader() {
                         </Button>
                       </TooltipKeybind>
 
-                      <Show when={tree()}>
+                      <TooltipKeybind
-                        <TooltipKeybind
+                        title={language.t("command.fileTree.toggle")}
-                          title={language.t("command.fileTree.toggle")}
+                        keybind={command.keybind("fileTree.toggle")}
-                          keybind={command.keybind("fileTree.toggle")}
+                      >
+                        <Button
+                          variant="ghost"
+                          class="titlebar-icon w-8 h-6 p-0 box-border"
+                          onClick={() => layout.fileTree.toggle()}
+                          aria-label={language.t("command.fileTree.toggle")}
+                          aria-expanded={layout.fileTree.opened()}
+                          aria-controls="file-tree-panel"
                         >
-                          <Button
+                          <div class="relative flex items-center justify-center size-4">
-                            variant="ghost"
+                            <Icon
-                            class="titlebar-icon w-8 h-6 p-0 box-border"
+                              size="small"
-                            onClick={() => layout.fileTree.toggle()}
+                              name={layout.fileTree.opened() ? "file-tree-active" : "file-tree"}
-                            aria-label={language.t("command.fileTree.toggle")}
+                              classList={{
-                            aria-expanded={layout.fileTree.opened()}
+                                "text-icon-strong": layout.fileTree.opened(),
-                            aria-controls="file-tree-panel"
+                                "text-icon-weak": !layout.fileTree.opened(),
-                          >
+                              }}
-                            <div class="relative flex items-center justify-center size-4">
+                            />
-                              <Icon
+                          </div>
-                                size="small"
+                        </Button>
-                                name={layout.fileTree.opened() ? "file-tree-active" : "file-tree"}
+                      </TooltipKeybind>
-                                classList={{
-                                  "text-icon-strong": layout.fileTree.opened(),
-                                  "text-icon-weak": !layout.fileTree.opened(),
-                                }}
-                              />
-                            </div>
-                          </Button>
-                        </TooltipKeybind>
-                      </Show>
                     </div>
                   </div>
                 </div>
@@ -523,12 +523,15 @@ type SessionHeaderV2ActionsState = {
   statusVisible: boolean
   statusLabel: string
   reviewLabel: string
-  reviewKeybind: string
+  reviewKeybind: string[]
+  reviewVisible: boolean
   reviewOpened: boolean
   onReviewToggle: () => void
 }
 
 function SessionHeaderV2Actions(props: { state: SessionHeaderV2ActionsState }) {
+  const language = useLanguage()
+
   return (
     <div class="flex items-center gap-2">
       <Show when={props.state.statusVisible}>
@@ -536,20 +539,32 @@ function SessionHeaderV2Actions(props: { state: SessionHeaderV2ActionsState }) {
           <StatusPopoverV2 />
         </Tooltip>
       </Show>
-      <TooltipKeybind title={props.state.reviewLabel} keybind={props.state.reviewKeybind}>
+      <Show when={props.state.reviewVisible}>
-        <IconButtonV2
+        <TooltipV2
-          type="button"
+          placement="bottom"
-          variant="ghost-muted"
+          value={
-          size="large"
+            <>
-          class="!w-9 shrink-0"
+              {props.state.reviewLabel}
-          state={props.state.reviewOpened ? "pressed" : undefined}
+              <Show when={props.state.reviewKeybind.length > 0}>
-          onClick={props.state.onReviewToggle}
+                <KeybindV2 keys={props.state.reviewKeybind} variant="neutral" />
-          aria-label={props.state.reviewLabel}
+              </Show>
-          aria-expanded={props.state.reviewOpened}
+            </>
-          aria-controls="review-panel"
+          }
-          icon={<IconV2 name="sidebar-right" />}
+        >
-        />
+          <IconButtonV2
-      </TooltipKeybind>
+            type="button"
+            variant="ghost-muted"
+            size="large"
+            class="!w-9 shrink-0"
+            state={props.state.reviewOpened ? "pressed" : undefined}
+            onClick={props.state.onReviewToggle}
+            aria-label={props.state.reviewLabel}
+            aria-expanded={props.state.reviewOpened}
+            aria-controls="review-panel"
+            icon={<IconV2 name="sidebar-right" />}
+          />
+        </TooltipV2>
+      </Show>
     </div>
   )
 }

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

@@ -20,24 +20,24 @@ export function NewSessionView(props: NewSessionViewProps) {
   const sdk = useSDK()
   const language = useLanguage()
 
-  const sandboxes = createMemo(() => sync.project?.sandboxes ?? [])
+  const sandboxes = createMemo(() => sync().project?.sandboxes ?? [])
   const options = createMemo(() => [MAIN_WORKTREE, ...sandboxes(), CREATE_WORKTREE])
   const current = createMemo(() => {
     const selection = props.worktree
     if (options().includes(selection)) return selection
     return MAIN_WORKTREE
   })
-  const projectRoot = createMemo(() => sync.project?.worktree ?? sdk.directory)
+  const projectRoot = createMemo(() => sync().project?.worktree ?? sdk().directory)
   const isWorktree = createMemo(() => {
-    const project = sync.project
+    const project = sync().project
     if (!project) return false
-    return sdk.directory !== project.worktree
+    return sdk().directory !== project.worktree
   })
 
   const label = (value: string) => {
     if (value === MAIN_WORKTREE) {
       if (isWorktree()) return language.t("session.new.worktree.main")
-      const branch = sync.data.vcs?.branch
+      const branch = sync().data.vcs?.branch
       if (branch) return language.t("session.new.worktree.mainWithBranch", { branch })
       return language.t("session.new.worktree.main")
     }
@@ -69,7 +69,7 @@ export function NewSessionView(props: NewSessionViewProps) {
                 {label(current())}
               </div>
             </div>
-            <Show when={sync.project}>
+            <Show when={sync().project}>
               {(project) => (
                 <div class="flex items-start justify-center gap-3 min-h-5">
                   <div class="text-12-medium text-text-weak leading-5 min-w-0 max-w-160 break-words text-center">

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

@@ -127,8 +127,8 @@ export const SettingsGeneral: Component = () => {
 
   const [shells] = createResource(
     () =>
-      serverSdk.client.pty
+      serverSdk()
-        .shells()
+        .client.pty.shells()
         .then((res) => res.data ?? [])
         .catch(() => [] as ShellOption[]),
     { initialValue: [] as ShellOption[] },
@@ -151,11 +151,11 @@ export const SettingsGeneral: Component = () => {
   })
 
   const autoOption = { id: "auto", value: "", label: language.t("settings.general.row.shell.autoDefault") }
-  const currentShell = createMemo(() => serverSync.data.config.shell ?? "")
+  const currentShell = createMemo(() => serverSync().data.config.shell ?? "")
 
   const shellOptions = createMemo<ShellSelectOption[]>(() => {
     const list = shells.latest
-    const current = serverSync.data.config.shell
+    const current = serverSync().data.config.shell
 
     const nameCounts = new Map<string, number>()
     for (const s of list) {
@@ -290,7 +290,7 @@ export const SettingsGeneral: Component = () => {
             onSelect={(option) => {
               if (!option) return
               if (option.value === currentShell()) return
-              serverSync.updateConfig({ shell: option.value })
+              serverSync().updateConfig({ shell: option.value })
             }}
             variant="secondary"
             size="small"
@@ -335,18 +335,6 @@ export const SettingsGeneral: Component = () => {
           </div>
         </SettingsRow>
 
-        <SettingsRow
-          title={language.t("settings.general.row.showSessionProgressBar.title")}
-          description={language.t("settings.general.row.showSessionProgressBar.description")}
-        >
-          <div data-action="settings-show-session-progress-bar">
-            <Switch
-              checked={settings.general.showSessionProgressBar()}
-              onChange={(checked) => settings.general.setShowSessionProgressBar(checked)}
-            />
-          </div>
-        </SettingsRow>
-
         <SettingsRow
           title={language.t("settings.general.row.newLayoutDesigns.title")}
           description={language.t("settings.general.row.newLayoutDesigns.description")}