docs: add stream delta coalescing PRD

Co-authored-by: opencode-agent[bot] <opencode-agent[bot]@users.noreply.github.com>

AGENTS.md

@@ -1,4 +1,6 @@
-- To regenerate the JavaScript SDK, run `./packages/sdk/js/script/build.ts`.
+- To regenerate the legacy JavaScript SDK, run `./packages/sdk/js/script/build.ts`.
+- After changing the public Protocol or Server `HttpApi`, run `bun run generate` from `packages/client`. Do not edit `src/generated` or `src/generated-effect` directly.
+- Keep runtime dependencies directed from Schema to Core and Protocol, then from Core and Protocol to Server. Client runtime code may depend on Schema and Protocol but never Core or Server; `sdk-next` composes Client, Core, and Server.
 - The default branch in this repo is `dev`.
 - Local `main` ref may not exist; use `dev` or `origin/dev` for diffs.
 

CONTEXT.md

@@ -57,11 +57,21 @@ The bounded projection of a Core-executed tool result persisted in Session histo
 **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**:
+Provider-semantic model settings selected from the Catalog and active Session variant before the LLM protocol adapter encodes them for a provider request.
+_Avoid_: Request body, wire options
+
+**Generation Controls**:
+Provider-neutral sampling and output controls, partitioned from provider semantics and compatibility wire fields when model metadata enters the Catalog.
+
+**Native Continuation Metadata**:
+Opaque protocol-shaped data attached to assistant content and required to continue that content natively with a compatible model, such as a reasoning signature or provider-hosted item identifier.
+
 **PTY Environment**:
 The host-supplied environment overlay applied by the server when creating a PTY, observed for the request Location and resolved PTY working directory.
 
 **OpenCode Client**:
-The generated Effect API shared by networked and in-process consumers, executed through an `HttpClient` against the same `HttpApi` router and handlers.
+The generated Promise and Effect APIs derived from the public `HttpApi`; **Embedded OpenCode** shares the Effect API through an in-memory `HttpClient` against the same router and handlers.
 _Avoid_: Remote client
 
 **SDK Contract IR**:
@@ -122,6 +132,9 @@ _Avoid_: Response envelope
 - A **Baseline System Context** durably preserves the exact joined text used for the active provider-cache prefix.
 - 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 preserves the current **Context Epoch** and chronological conversation history; the new selection applies to the next provider turn.
+- **Native Continuation Metadata** remains in durable history. Provider-turn projection includes it only for a successful exact originating provider/model match; failed turns and incompatible models omit opaque metadata, while non-empty visible reasoning lowers to ordinary assistant text after a model switch. This conservative relation may widen only when recorded provider tests establish compatibility.
+- **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.
+- **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.
 - 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`.
 - 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.
@@ -159,8 +172,9 @@ _Avoid_: Response envelope
 - 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.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 `MessageNotFoundError` 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.active()` snapshots the current process's foreground Session drain registry as a record of Session IDs to `{ type: "running" }`. Missing IDs are inactive; background subagents and tasks do not make their parent Session active, and process restart clears the registry.
 - `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.

bun.lock

@@ -31,6 +31,10 @@
       "name": "@opencode-ai/app",
       "version": "1.17.11",
       "dependencies": {
+        "@dnd-kit/abstract": "0.5.0",
+        "@dnd-kit/dom": "0.5.0",
+        "@dnd-kit/helpers": "0.5.0",
+        "@dnd-kit/solid": "0.5.0",
         "@kobalte/core": "catalog:",
         "@opencode-ai/core": "workspace:*",
         "@opencode-ai/sdk": "workspace:*",
@@ -59,7 +63,7 @@
         "diff": "catalog:",
         "effect": "catalog:",
         "fuzzysort": "catalog:",
-        "ghostty-web": "github:anomalyco/ghostty-web#main",
+        "ghostty-web": "github:anomalyco/ghostty-web#513463a6f1190253057e8a3f0dac8f6ee8393553",
         "luxon": "catalog:",
         "marked": "catalog:",
         "marked-shiki": "catalog:",
@@ -79,6 +83,7 @@
         "@types/luxon": "catalog:",
         "@types/node": "catalog:",
         "@typescript/native-preview": "catalog:",
+        "tw-animate-css": "1.4.0",
         "typescript": "catalog:",
         "vite": "catalog:",
         "vite-plugin-icons-spritesheet": "3.0.1",
@@ -312,6 +317,7 @@
         "ai-gateway-provider": "3.1.2",
         "bun-pty": "0.4.8",
         "cross-spawn": "catalog:",
+        "diff": "catalog:",
         "drizzle-orm": "catalog:",
         "effect": "catalog:",
         "fuzzysort": "3.1.0",
@@ -986,6 +992,7 @@
         "@typescript/native-preview": "catalog:",
         "solid-js": "catalog:",
         "tailwindcss": "catalog:",
+        "tw-animate-css": "1.4.0",
         "typescript": "catalog:",
         "vite": "catalog:",
         "vite-plugin-icons-spritesheet": "3.0.1",
@@ -1451,6 +1458,20 @@
 
     "@develar/schema-utils": ["@develar/schema-utils@2.6.5", "", { "dependencies": { "ajv": "^6.12.0", "ajv-keywords": "^3.4.1" } }, "sha512-0cp4PsWQ/9avqTVMCtZ+GirikIA36ikvjtHweU4/j8yLtgObI0+JUPhYFScgwlteveGB1rt3Cm8UhN04XayDig=="],
 
+    "@dnd-kit/abstract": ["@dnd-kit/abstract@0.5.0", "", { "dependencies": { "@dnd-kit/geometry": "^0.5.0", "@dnd-kit/state": "^0.5.0", "tslib": "^2.6.2" } }, "sha512-hi13iMJgjPX/KDYVKg5VeDIhmYiV6buc9bAX+tCLYf4QdyYjPbsXjn2sPo6m7fQ6SGJBEFgHJ2PemeKDUbwBaA=="],
+
+    "@dnd-kit/collision": ["@dnd-kit/collision@0.5.0", "", { "dependencies": { "@dnd-kit/abstract": "^0.5.0", "@dnd-kit/geometry": "^0.5.0", "tslib": "^2.6.2" } }, "sha512-xUqRn3lS7oqLkT0AnnHS/STh/Czvwe1UapZFYiLbsUGxopMsQd4teaPCzPouOThoMdGEe+dHWjfqJl6t9iG4mQ=="],
+
+    "@dnd-kit/dom": ["@dnd-kit/dom@0.5.0", "", { "dependencies": { "@dnd-kit/abstract": "^0.5.0", "@dnd-kit/collision": "^0.5.0", "@dnd-kit/geometry": "^0.5.0", "@dnd-kit/state": "^0.5.0", "tslib": "^2.6.2" } }, "sha512-f2xFJp5SYQ8EW/Fbtaa8iBb66hpkWc7qa8vU826KW11/tb44sH+AisZnGtwOOTWTQ0GraqBDr5ixTErww+eKXw=="],
+
+    "@dnd-kit/geometry": ["@dnd-kit/geometry@0.5.0", "", { "dependencies": { "@dnd-kit/state": "^0.5.0", "tslib": "^2.6.2" } }, "sha512-ubHQS1CiSDH8ssYH2xG5BnpwPSFP1tStXXjug7/Ba6qnQdu/EUH47l6QXKIksQnnanfVfDf0aGeevRxgZlj28A=="],
+
+    "@dnd-kit/helpers": ["@dnd-kit/helpers@0.5.0", "", { "dependencies": { "@dnd-kit/abstract": "^0.5.0", "tslib": "^2.6.2" } }, "sha512-i4y+51/icSw+OHMr/su19qhnmNhAzh8PnBwXvapFYTd+64oodIyJRiRkB+hhfxAfnur7RYSW8qacDTrXjg2XOg=="],
+
+    "@dnd-kit/solid": ["@dnd-kit/solid@0.5.0", "", { "dependencies": { "@dnd-kit/abstract": "^0.5.0", "@dnd-kit/dom": "^0.5.0", "@dnd-kit/state": "^0.5.0", "tslib": "^2.6.2" }, "peerDependencies": { "solid-js": "^1.8.0" } }, "sha512-IKDqVZICS0jEeUzpJMIIF61w0WA4zisyx9U7K7Skbmkb/kQSDa3lB0cOc0947RwSO+ALoxytRNOuoNfyOIm3lQ=="],
+
+    "@dnd-kit/state": ["@dnd-kit/state@0.5.0", "", { "dependencies": { "@preact/signals-core": "^1.10.0", "tslib": "^2.6.2" } }, "sha512-y7XbabQqjF58Lk8YmDQuR8l6QjN+Kh4qlGEjUvHuIeasLk1QP+9L5diXS98VMxQIivyMmUtX2//f+3N7qPJX4w=="],
+
     "@dot/log": ["@dot/log@0.1.5", "", { "dependencies": { "chalk": "^4.1.2", "loglevelnext": "^6.0.0", "p-defer": "^3.0.0" } }, "sha512-ECraEVJWv2f2mWK93lYiefUkphStVlKD6yKDzisuoEmxuLKrxO9iGetHK2DoEAkj7sxjE886n0OUVVCUx0YPNg=="],
 
     "@drizzle-team/brocli": ["@drizzle-team/brocli@0.11.0", "", {}, "sha512-hD3pekGiPg0WPCCGAZmusBBJsDqGUR66Y452YgQsZOnkdQ7ViEPKuyP4huUGEZQefp8g34RRodXYmJ2TbCH+tg=="],
@@ -2287,6 +2308,8 @@
 
     "@poppinss/exception": ["@poppinss/exception@1.2.3", "", {}, "sha512-dCED+QRChTVatE9ibtoaxc+WkdzOSjYTKi/+uacHWIsfodVfpsueo3+DKpgU5Px8qXjgmXkSvhXvSCz3fnP9lw=="],
 
+    "@preact/signals-core": ["@preact/signals-core@1.14.3", "", {}, "sha512-m0K3vnbSLC5rHs2ZVfeAMvBtT1zIyq4mxx5OlNncSgMj5Iz6W5Rn3kPrDxAC+iIKmiVe0lSl6U37t5ZkEWoVAw=="],
+
     "@protobuf-ts/plugin": ["@protobuf-ts/plugin@2.11.1", "", { "dependencies": { "@bufbuild/protobuf": "^2.4.0", "@bufbuild/protoplugin": "^2.4.0", "@protobuf-ts/protoc": "^2.11.1", "@protobuf-ts/runtime": "^2.11.1", "@protobuf-ts/runtime-rpc": "^2.11.1", "typescript": "^3.9" }, "bin": { "protoc-gen-ts": "bin/protoc-gen-ts", "protoc-gen-dump": "bin/protoc-gen-dump" } }, "sha512-HyuprDcw0bEEJqkOWe1rnXUP0gwYLij8YhPuZyZk6cJbIgc/Q0IFgoHQxOXNIXAcXM4Sbehh6kjVnCzasElw1A=="],
 
     "@protobuf-ts/protoc": ["@protobuf-ts/protoc@2.11.1", "", { "bin": { "protoc": "protoc.js" } }, "sha512-mUZJaV0daGO6HUX90o/atzQ6A7bbN2RSuHtdwo8SSF2Qoe3zHwa4IHyCN1evftTeHfLmdz+45qo47sL+5P8nyg=="],
@@ -3781,7 +3804,7 @@
 
     "get-tsconfig": ["get-tsconfig@4.14.0", "", { "dependencies": { "resolve-pkg-maps": "^1.0.0" } }, "sha512-yTb+8DXzDREzgvYmh6s9vHsSVCHeC0G3PI5bEXNBHtmshPnO+S5O7qgLEOn0I5QvMy6kpZN8K1NKGyilLb93wA=="],
 
-    "ghostty-web": ["ghostty-web@github:anomalyco/ghostty-web#20bd361", {}, "anomalyco-ghostty-web-20bd361", "sha512-dW0nwaiBBcun9y5WJSvm3HxDLe5o9V0xLCndQvWonRVubU8CS1PHxZpLffyPt1YujPWC13ez03aWxcuKBPYYGQ=="],
+    "ghostty-web": ["ghostty-web@github:anomalyco/ghostty-web#513463a", {}, "anomalyco-ghostty-web-513463a", "sha512-GZR8LSmgGzViWnBJrqRI8MpAZRCJxhcr1Hi9Tyeh7YRooHZQjK9J97FQRD3tbBaM2wjq05gzGY2UEsG+JtZeBw=="],
 
     "giget": ["giget@2.0.0", "", { "dependencies": { "citty": "^0.1.6", "consola": "^3.4.0", "defu": "^6.1.4", "node-fetch-native": "^1.6.6", "nypm": "^0.6.0", "pathe": "^2.0.3" }, "bin": { "giget": "dist/cli.mjs" } }, "sha512-L5bGsVkxJbJgdnwyuheIunkGatUF/zssUoxxjACCseZYAVbaqdh9Tsmmlkl8vYan09H7sbvKt4pS8GqKLBrEzA=="],
 
@@ -5295,6 +5318,8 @@
 
     "turndown": ["turndown@7.2.0", "", { "dependencies": { "@mixmark-io/domino": "^2.2.0" } }, "sha512-eCZGBN4nNNqM9Owkv9HAtWRYfLA4h909E/WGAWWBpmB275ehNhZyk87/Tpvjbp0jjNl9XwCsbe6bm6CqFsgD+A=="],
 
+    "tw-animate-css": ["tw-animate-css@1.4.0", "", {}, "sha512-7bziOlRqH0hJx80h/3mbicLW7o8qLsH5+RaLR2t+OHM3D0JlWGODQKQ4cxbK7WlvmUxpcj6Kgu6EKqjrGFe3QQ=="],
+
     "tw-to-css": ["tw-to-css@0.0.12", "", { "dependencies": { "postcss": "8.4.31", "postcss-css-variables": "0.18.0", "tailwindcss": "3.3.2" } }, "sha512-rQAsQvOtV1lBkyCw+iypMygNHrShYAItES5r8fMsrhhaj5qrV2LkZyXc8ccEH+u5bFjHjQ9iuxe90I7Kykf6pw=="],
 
     "type-fest": ["type-fest@4.41.0", "", {}, "sha512-TeTSQ6H5YHvpqVwBRcnLDCBnDOHWYu7IvGbHT6N8AOymcr9PJGjc1GTtiWZTYg0NCgYwvnYWEkVChQAr9bjfwA=="],

nix/hashes.json

@@ -1,8 +1,8 @@
 {
   "nodeModules": {
-    "x86_64-linux": "sha256-drc/Ev96W6b8b0b5LqdZeeGDQ1SMgsz8r5cMO91ei2o=",
-    "aarch64-linux": "sha256-Ti0hNjhUgkVtdb54vea/lpI0ltDwLoPitVyHtx4JGwY=",
-    "aarch64-darwin": "sha256-br4iQ/kK3tSGp+1FefiCTlwsCRhHHhGbKzSixGWaCto=",
-    "x86_64-darwin": "sha256-h7yje968Kyh8/mVY19YmDB5g693XDhIf0XnuwukzCWE="
+    "x86_64-linux": "sha256-A3dgTsHBfIn+trqbserr1CAERfKeJjTiUxZxzkz4tPU=",
+    "aarch64-linux": "sha256-G72CWFF7gTNHxmq5TFMRFiffqp9Voqcoe1oz8Kk47vU=",
+    "aarch64-darwin": "sha256-7/lxVQWuebPDFo+cuel/S1IpwLuTxFYIUYBsNimqcI4=",
+    "x86_64-darwin": "sha256-GTRYa17f0SpwrWh+M3Q2MTIUzzGINknKMmRzYUgqMus="
   }
 }

packages/app/e2e/regression/terminal-hidden.spec.ts

@@ -0,0 +1,79 @@
+import { expect, test } from "@playwright/test"
+import { mockOpenCodeServer } from "../utils/mock-server"
+import { expectSessionTitle } from "../utils/waits"
+
+const directory = "C:/OpenCode/HiddenTerminalRegression"
+const projectID = "proj_hidden_terminal_regression"
+const sessionID = "ses_hidden_terminal_regression"
+const title = "Hidden terminal regression"
+
+test("unmounts the terminal renderer while the pane is hidden", async ({ page }) => {
+  await page.setViewportSize({ width: 1400, height: 900 })
+  await mockOpenCodeServer(page, {
+    directory,
+    project: {
+      id: projectID,
+      worktree: directory,
+      vcs: "git",
+      name: "hidden-terminal-regression",
+      time: { created: 1700000000000, updated: 1700000000000 },
+      sandboxes: [],
+    },
+    provider: {
+      all: [
+        {
+          id: "opencode",
+          name: "OpenCode",
+          models: { test: { id: "test", name: "Test", limit: { context: 200_000 } } },
+        },
+      ],
+      connected: ["opencode"],
+      default: { providerID: "opencode", modelID: "test" },
+    },
+    sessions: [
+      {
+        id: sessionID,
+        slug: "hidden-terminal-regression",
+        projectID,
+        directory,
+        title,
+        version: "dev",
+        time: { created: 1700000000000, updated: 1700000000000 },
+      },
+    ],
+    pageMessages: () => ({ items: [] }),
+  })
+  await page.route("**/pty", (route) =>
+    route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({ id: "pty_hidden_terminal", title: "Terminal 1" }),
+    }),
+  )
+  await page.route("**/pty/pty_hidden_terminal", (route) =>
+    route.fulfill({ status: 200, contentType: "application/json", body: "{}" }),
+  )
+  await page.routeWebSocket("**/pty/pty_hidden_terminal/connect", () => undefined)
+
+  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await expectSessionTitle(page, title)
+
+  await page.keyboard.press("Control+Backquote")
+  const panel = page.locator("#terminal-panel")
+  await expect(panel).toHaveAttribute("aria-hidden", "false")
+  await expect(page.locator('[data-component="terminal"]')).toBeVisible()
+
+  await page.keyboard.press("Control+Backquote")
+  await expect(panel).toHaveAttribute("aria-hidden", "true")
+  await expect(page.locator('[data-component="terminal"]')).toHaveCount(0)
+
+  await page.setViewportSize({ width: 1200, height: 700 })
+  await expect(page.locator('[data-component="terminal"]')).toHaveCount(0)
+
+  await page.keyboard.press("Control+Backquote")
+  await expect(page.locator('[data-component="terminal"]')).toBeVisible()
+})
+
+function base64Encode(value: string) {
+  return Buffer.from(value, "utf8").toString("base64").replace(/\+/g, "-").replace(/\//g, "_").replace(/=/g, "")
+}

packages/app/package.json

@@ -38,12 +38,17 @@
     "@types/luxon": "catalog:",
     "@types/node": "catalog:",
     "@typescript/native-preview": "catalog:",
+    "tw-animate-css": "1.4.0",
     "typescript": "catalog:",
     "vite": "catalog:",
     "vite-plugin-icons-spritesheet": "3.0.1",
     "vite-plugin-solid": "catalog:"
   },
   "dependencies": {
+    "@dnd-kit/abstract": "0.5.0",
+    "@dnd-kit/dom": "0.5.0",
+    "@dnd-kit/helpers": "0.5.0",
+    "@dnd-kit/solid": "0.5.0",
     "@kobalte/core": "catalog:",
     "@opencode-ai/core": "workspace:*",
     "@opencode-ai/sdk": "workspace:*",
@@ -72,7 +77,7 @@
     "diff": "catalog:",
     "effect": "catalog:",
     "fuzzysort": "catalog:",
-    "ghostty-web": "github:anomalyco/ghostty-web#main",
+    "ghostty-web": "github:anomalyco/ghostty-web#513463a6f1190253057e8a3f0dac8f6ee8393553",
     "luxon": "catalog:",
     "marked": "catalog:",
     "marked-shiki": "catalog:",

packages/app/src/app.tsx

@@ -16,6 +16,7 @@ import {
   type Component,
   createEffect,
   createMemo,
+  createRenderEffect,
   createResource,
   createSignal,
   ErrorBoundary,
@@ -32,12 +33,12 @@ import { CommentsProvider } from "@/context/comments"
 import { FileProvider } from "@/context/file"
 import { ServerSDKProvider, useServerSDK } from "@/context/server-sdk"
 import { ServerSyncProvider, useServerSync } from "@/context/server-sync"
-import { GlobalProvider } from "@/context/global"
+import { GlobalProvider, useGlobal } from "@/context/global"
 import { HighlightsProvider } from "@/context/highlights"
 import { LanguageProvider, type Locale, useLanguage } from "@/context/language"
 import { LayoutProvider } from "@/context/layout"
 import { ModelsProvider } from "@/context/models"
-import { NotificationProvider } from "@/context/notification"
+import { NotificationProvider, useNotification } from "@/context/notification"
 import { PermissionProvider } from "@/context/permission"
 import { PromptProvider } from "@/context/prompt"
 import { ServerConnection, ServerProvider, serverName, useServer } from "@/context/server"
@@ -103,10 +104,10 @@ const SessionRoute = () => {
 
 const TargetSessionRoute = () => {
   const params = useParams<{ serverKey: string; id: string }>()
-  const server = useServer()
+  const global = useGlobal()
   const conn = createMemo(() => {
     const key = requireServerKey(params.serverKey)
-    return server.list.find((item) => ServerConnection.key(item) === key)
+    return global.servers.list().find((item) => ServerConnection.key(item) === key)
   })
 
   return (
@@ -221,25 +222,27 @@ function DraftRoute() {
 }
 
 function ResolvedDraftRoute(props: { draft: DraftTab }) {
-  const server = useServer()
-  const conn = createMemo(() => server.list.find((item) => ServerConnection.key(item) === props.draft.server))
+  const global = useGlobal()
+  const conn = createMemo(() => global.servers.list().find((item) => ServerConnection.key(item) === props.draft.server))
   const directory = () => props.draft.directory
   const serverKey = () => props.draft.server
 
   return (
-    <ServerSDKProvider server={conn}>
-      <ServerSyncProvider server={conn}>
-        <TargetServerScopedProviders directory={directory}>
-          <SDKProvider directory={directory}>
-            <DirectoryDataProvider directory={directory} server={serverKey}>
-              <DraftProviders>
-                <NewSession />
-              </DraftProviders>
-            </DirectoryDataProvider>
-          </SDKProvider>
-        </TargetServerScopedProviders>
-      </ServerSyncProvider>
-    </ServerSDKProvider>
+    <Show when={`${props.draft.server}\0${props.draft.directory}`} keyed>
+      <ServerSDKProvider server={conn}>
+        <ServerSyncProvider server={conn}>
+          <TargetServerScopedProviders directory={directory}>
+            <SDKProvider directory={directory}>
+              <DirectoryDataProvider directory={directory} server={serverKey}>
+                <DraftProviders>
+                  <NewSession />
+                </DraftProviders>
+              </DirectoryDataProvider>
+            </SDKProvider>
+          </TargetServerScopedProviders>
+        </ServerSyncProvider>
+      </ServerSDKProvider>
+    </Show>
   )
 }
 
@@ -276,10 +279,11 @@ function QueryProvider(props: ParentProps) {
 function BodyDesignClass() {
   const settings = useSettings()
 
-  createEffect(() => {
+  createRenderEffect(() => {
     if (typeof document === "undefined") return
 
     const enabled = settings.general.newLayoutDesigns()
+    document.body.toggleAttribute("data-new-layout", enabled)
     document.body.classList.toggle("text-12-regular", !enabled)
     document.body.classList.toggle("font-(family-name:--font-family-text)", enabled)
     document.body.classList.toggle("text-[13px]", enabled)
@@ -312,9 +316,7 @@ 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>
+        <ModelsProvider directory={props.directory}>{props.children}</ModelsProvider>
       </LayoutProvider>
     </PermissionProvider>
   )
@@ -341,13 +343,23 @@ function NewAppLayout(props: ParentProps) {
 function TargetServerScopedProviders(props: ServerScopedShellProps) {
   return (
     <PermissionProvider directory={props.directory}>
-      <NotificationProvider directory={props.directory} sessionID={props.sessionID}>
-        <ModelsProvider directory={props.directory}>{props.children}</ModelsProvider>
-      </NotificationProvider>
+      <MarkSessionNotificationsViewed sessionID={props.sessionID} />
+      <ModelsProvider directory={props.directory}>{props.children}</ModelsProvider>
     </PermissionProvider>
   )
 }
 
+function MarkSessionNotificationsViewed(props: { sessionID?: () => string | undefined }) {
+  const notification = useNotification()
+  createEffect(() => {
+    const sessionID = props.sessionID?.()
+    if (!notification.ready() || !sessionID) return
+    if (notification.session.unseenCount(sessionID) === 0) return
+    notification.session.markViewed(sessionID)
+  })
+  return null
+}
+
 function SessionProviders(props: ParentProps) {
   return (
     <TerminalProvider>
@@ -556,11 +568,13 @@ export function AppInterface(props: {
                 component={props.router ?? Router}
                 root={(routerProps) => (
                   <TabsProvider>
-                    <ServerShell>
-                      <Show when={useSettings().general.newLayoutDesigns()} fallback={routerProps.children}>
-                        <NewAppLayout>{routerProps.children}</NewAppLayout>
-                      </Show>
-                    </ServerShell>
+                    <NotificationProvider>
+                      <ServerShell>
+                        <Show when={useSettings().general.newLayoutDesigns()} fallback={routerProps.children}>
+                          <NewAppLayout>{routerProps.children}</NewAppLayout>
+                        </Show>
+                      </ServerShell>
+                    </NotificationProvider>
                   </TabsProvider>
                 )}
               >
@@ -588,18 +602,31 @@ function Routes() {
       </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}`} />
-          }}
-        />
+        <Route path="/:dir/session/:id" component={LegacyTargetSessionRoute} />
       </Show>
       <Route path="/new-session" component={DraftRoute} />
       <Route path="/server/:serverKey/session/:id" component={TargetSessionRoute} />
     </>
   )
 }
+
+function LegacyTargetSessionRoute() {
+  const server = useServer()
+  const tabs = useTabs()
+  const params = useParams<{ id: string }>()
+
+  return (
+    <Show when={tabs.ready()}>
+      <Navigate
+        href={sessionHref(
+          legacySessionServer(
+            tabs.store.filter((item) => item.type === "session"),
+            params.id,
+            server.key,
+          ),
+          params.id,
+        )}
+      />
+    </Show>
+  )
+}

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

@@ -3,6 +3,7 @@ import { batch, createEffect, onCleanup, onMount } from "solid-js"
 import { createStore } from "solid-js/store"
 import { makeEventListener } from "@solid-primitives/event-listener"
 import { Tooltip } from "@opencode-ai/ui/tooltip"
+import { TooltipV2 } from "@opencode-ai/ui/v2/tooltip-v2"
 import { useLanguage } from "@/context/language"
 
 type Mem = Performance & {
@@ -51,31 +52,62 @@ const bad = (n: number | undefined, limit: number, low = false) => {
 
 const session = (path: string) => path.includes("/session")
 
-function Cell(props: { bad?: boolean; dim?: boolean; label: string; tip: string; value: string; wide?: boolean }) {
-  return (
-    <Tooltip value={props.tip} placement="top">
+function Cell(props: {
+  bad?: boolean
+  dim?: boolean
+  inline?: boolean
+  label: string
+  tip: string
+  value: string
+  wide?: boolean
+}) {
+  const content = () => (
+    <div
+      classList={{
+        "flex min-w-0 items-center": true,
+        "min-h-[20px] w-fit flex-row justify-start gap-1.5 px-1.5 py-0.5 text-left": !!props.inline,
+        "justify-center text-center": !props.inline,
+        "min-h-[42px] w-full flex-col rounded-[8px] px-0.5 py-1": !props.inline,
+        "col-span-2": !!props.wide && !props.inline,
+      }}
+    >
       <div
         classList={{
-          "flex min-h-[42px] w-full min-w-0 flex-col items-center justify-center rounded-[8px] px-0.5 py-1 text-center": true,
-          "col-span-2": !!props.wide,
+          "text-[10px] leading-none font-black uppercase tracking-[0.04em] opacity-70": true,
         }}
       >
-        <div class="text-[10px] leading-none font-black uppercase tracking-[0.04em] opacity-70">{props.label}</div>
-        <div
-          classList={{
-            "text-[13px] leading-none font-bold tabular-nums sm:text-[14px]": true,
-            "text-text-on-critical-base": !!props.bad,
-            "opacity-70": !!props.dim,
-          }}
-        >
-          {props.value}
-        </div>
+        {props.label}
       </div>
+      <div
+        classList={{
+          "uppercase leading-none font-bold tabular-nums": true,
+          "text-[11px]": !!props.inline,
+          "text-[13px] sm:text-[14px]": !props.inline,
+          "text-text-on-critical-base": !!props.bad,
+          "opacity-70": !!props.dim,
+        }}
+      >
+        {props.value}
+      </div>
+    </div>
+  )
+
+  if (props.inline) {
+    return (
+      <TooltipV2 value={props.tip} placement="top">
+        {content()}
+      </TooltipV2>
+    )
+  }
+
+  return (
+    <Tooltip value={props.tip} placement="top">
+      {content()}
     </Tooltip>
   )
 }
 
-export function DebugBar() {
+export function DebugBar(props: { inline?: boolean } = {}) {
   const language = useLanguage()
   const location = useLocation()
   const routing = useIsRouting()
@@ -101,7 +133,7 @@ export function DebugBar() {
     },
   })
 
-  const na = () => language.t("debugBar.na")
+  const na = () => language.t("debugBar.na").toUpperCase()
   const heap = () => (state.heap.limit ? (state.heap.used ?? 0) / state.heap.limit : undefined)
   const heapv = () => {
     const value = heap()
@@ -363,15 +395,30 @@ export function DebugBar() {
   return (
     <aside
       aria-label={language.t("debugBar.ariaLabel")}
-      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]"
+      classList={{
+        "pointer-events-auto hidden overflow-hidden text-text-strong md:block": true,
+        "mt-[-6px] w-full shrink-0 px-3 py-1": !!props.inline,
+        "fixed bottom-3 right-3 z-50 w-[308px] max-w-[calc(100vw-1.5rem)] rounded-xl border border-border-base bg-surface-raised-stronger-non-alpha p-0.5 shadow-[var(--shadow-lg-border-base)] sm:bottom-4 sm:right-4 sm:w-[324px]":
+          !props.inline,
+      }}
     >
-      <div class="grid grid-cols-5 gap-px font-mono">
+      <div
+        classList={{
+          "font-mono": true,
+          "gap-[9px]": !!props.inline,
+          "gap-px": !props.inline,
+          "flex w-full flex-nowrap items-center justify-start": !!props.inline,
+          "grid-cols-5": !props.inline,
+          grid: !props.inline,
+        }}
+      >
         <Cell
           label={language.t("debugBar.nav.label")}
           tip={language.t("debugBar.nav.tip")}
           value={navv()}
           bad={bad(state.nav.dur, 400)}
           dim={state.nav.dur === undefined && !state.nav.pending}
+          inline={props.inline}
         />
         <Cell
           label={language.t("debugBar.fps.label")}
@@ -379,6 +426,7 @@ export function DebugBar() {
           value={state.fps === undefined ? na() : `${Math.round(state.fps)}`}
           bad={bad(state.fps, 50, true)}
           dim={state.fps === undefined}
+          inline={props.inline}
         />
         <Cell
           label={language.t("debugBar.frame.label")}
@@ -386,6 +434,7 @@ export function DebugBar() {
           value={time(state.gap) ?? na()}
           bad={bad(state.gap, 50)}
           dim={state.gap === undefined}
+          inline={props.inline}
         />
         <Cell
           label={language.t("debugBar.jank.label")}
@@ -393,6 +442,7 @@ export function DebugBar() {
           value={state.jank === undefined ? na() : `${state.jank}`}
           bad={bad(state.jank, 8)}
           dim={state.jank === undefined}
+          inline={props.inline}
         />
         <Cell
           label={language.t("debugBar.long.label")}
@@ -400,6 +450,7 @@ export function DebugBar() {
           value={longv()}
           bad={bad(state.long.block, 200)}
           dim={state.long.count === undefined}
+          inline={props.inline}
         />
         <Cell
           label={language.t("debugBar.delay.label")}
@@ -407,6 +458,7 @@ export function DebugBar() {
           value={time(state.delay) ?? na()}
           bad={bad(state.delay, 100)}
           dim={state.delay === undefined}
+          inline={props.inline}
         />
         <Cell
           label={language.t("debugBar.inp.label")}
@@ -414,6 +466,7 @@ export function DebugBar() {
           value={time(state.inp) ?? na()}
           bad={bad(state.inp, 200)}
           dim={state.inp === undefined}
+          inline={props.inline}
         />
         <Cell
           label={language.t("debugBar.cls.label")}
@@ -421,6 +474,7 @@ export function DebugBar() {
           value={state.cls === undefined ? na() : state.cls.toFixed(2)}
           bad={bad(state.cls, 0.1)}
           dim={state.cls === undefined}
+          inline={props.inline}
         />
         <Cell
           label={language.t("debugBar.mem.label")}
@@ -435,6 +489,7 @@ export function DebugBar() {
           value={heapv()}
           bad={bad(heap(), 0.8)}
           dim={state.heap.used === undefined}
+          inline={props.inline}
           wide
         />
       </div>

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

@@ -65,6 +65,7 @@ export function DialogConnectProvider(props: { provider: string; directory?: Acc
   const [store, setStore] = createStore({
     methodIndex: undefined as undefined | number,
     authorization: undefined as undefined | ProviderAuthAuthorization,
+    promptInputs: undefined as undefined | Record<string, string>,
     state: "pending" as undefined | "pending" | "complete" | "error" | "prompt",
     error: undefined as string | undefined,
   })
@@ -73,6 +74,7 @@ export function DialogConnectProvider(props: { provider: string; directory?: Acc
     | { type: "method.select"; index: number }
     | { type: "method.reset" }
     | { type: "auth.prompt" }
+    | { type: "auth.inputs"; inputs: Record<string, string> }
     | { type: "auth.pending" }
     | { type: "auth.complete"; authorization: ProviderAuthAuthorization }
     | { type: "auth.error"; error: string }
@@ -83,6 +85,7 @@ export function DialogConnectProvider(props: { provider: string; directory?: Acc
         if (action.type === "method.select") {
           draft.methodIndex = action.index
           draft.authorization = undefined
+          draft.promptInputs = undefined
           draft.state = undefined
           draft.error = undefined
           return
@@ -90,6 +93,7 @@ export function DialogConnectProvider(props: { provider: string; directory?: Acc
         if (action.type === "method.reset") {
           draft.methodIndex = undefined
           draft.authorization = undefined
+          draft.promptInputs = undefined
           draft.state = undefined
           draft.error = undefined
           return
@@ -99,6 +103,12 @@ export function DialogConnectProvider(props: { provider: string; directory?: Acc
           draft.error = undefined
           return
         }
+        if (action.type === "auth.inputs") {
+          draft.promptInputs = action.inputs
+          draft.state = undefined
+          draft.error = undefined
+          return
+        }
         if (action.type === "auth.pending") {
           draft.state = "pending"
           draft.error = undefined
@@ -151,6 +161,15 @@ export function DialogConnectProvider(props: { provider: string; directory?: Acc
     const method = methods()[index]
     dispatch({ type: "method.select", index })
 
+    if (method.type === "api" && method.prompts?.length) {
+      if (!inputs) {
+        dispatch({ type: "auth.prompt" })
+        return
+      }
+      dispatch({ type: "auth.inputs", inputs })
+      return
+    }
+
     if (method.type === "oauth") {
       if (method.prompts?.length && !inputs) {
         dispatch({ type: "auth.prompt" })
@@ -190,7 +209,7 @@ export function DialogConnectProvider(props: { provider: string; directory?: Acc
     }
   }
 
-  function OAuthPromptsView() {
+  function AuthPromptsView() {
     const [formStore, setFormStore] = createStore({
       value: {} as Record<string, string>,
       index: 0,
@@ -198,8 +217,7 @@ export function DialogConnectProvider(props: { provider: string; directory?: Acc
 
     const prompts = createMemo<NonNullable<ProviderAuthMethod["prompts"]>>(() => {
       const value = method()
-      if (value?.type !== "oauth") return []
-      return value.prompts ?? []
+      return value?.prompts ?? []
     })
     const matches = (prompt: NonNullable<ReturnType<typeof prompts>[number]>, value: Record<string, string>) => {
       if (!prompt.when) return true
@@ -230,6 +248,10 @@ export function DialogConnectProvider(props: { provider: string; directory?: Acc
         setFormStore("index", next)
         return
       }
+      if (method()?.type === "api") {
+        dispatch({ type: "auth.inputs", inputs: value })
+        return
+      }
       await selectMethod(store.methodIndex, value)
     }
 
@@ -414,6 +436,7 @@ export function DialogConnectProvider(props: { provider: string; directory?: Acc
         auth: {
           type: "api",
           key: apiKey,
+          ...(store.promptInputs ? { metadata: store.promptInputs } : {}),
         },
       })
       await complete()
@@ -622,7 +645,7 @@ export function DialogConnectProvider(props: { provider: string; directory?: Acc
                 </div>
               </Match>
               <Match when={store.state === "prompt"}>
-                <OAuthPromptsView />
+                <AuthPromptsView />
               </Match>
               <Match when={store.state === "error"}>
                 <div class="text-14-regular text-text-base">

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

@@ -1,6 +1,6 @@
 import "@pierre/trees/web-components"
 import { FileTree } from "@pierre/trees"
-import { Dialog, DialogFooter } from "@opencode-ai/ui/v2/dialog-v2"
+import { Dialog, DialogBody, DialogFooter, DialogHeader, DialogTitle } 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"
@@ -27,6 +27,7 @@ import {
   pickerRoot,
 } from "./directory-picker-domain"
 import "./dialog-select-directory-v2.css"
+import { DividerV2 } from "@opencode-ai/ui/v2/divider-v2"
 
 interface DialogSelectDirectoryV2Props {
   title?: string
@@ -266,8 +267,12 @@ export function DialogSelectDirectoryV2(props: DialogSelectDirectoryV2Props) {
   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">
+    <Dialog size="large" class="directory-picker-v2">
+      <DialogHeader>
+        <DialogTitle>{props.title ?? language.t("command.project.open")}</DialogTitle>
+      </DialogHeader>
+      <DividerV2 />
+      <DialogBody class="directory-picker-v2-body pt-4!">
         <div class="directory-picker-v2-path" ref={pathArea}>
           <TextInputV2
             value={input()}
@@ -349,7 +354,7 @@ export function DialogSelectDirectoryV2(props: DialogSelectDirectoryV2Props) {
           </Show>
         </div>
         <div class="directory-picker-v2-selection">{policy.result(root(), selected(), rootValid())}</div>
-      </div>
+      </DialogBody>
       <DialogFooter>
         <ButtonV2 variant="neutral" onClick={() => dialog.close()}>
           {language.t("common.cancel")}

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

@@ -15,7 +15,6 @@ 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"
@@ -272,7 +271,6 @@ export function DialogSelectFile(props: { mode?: DialogSelectFileMode; onOpenFil
   const command = useCommand()
   const language = useLanguage()
   const platform = usePlatform()
-  const server = useServer()
   const settings = useSettings()
   const layout = useLayout()
   const file = useFile()
@@ -393,10 +391,10 @@ export function DialogSelectFile(props: { mode?: DialogSelectFileMode; onOpenFil
     state.cleanup?.()
   })
 
-  if (filesOnly() && platform.platform === "desktop" && settings.general.newLayoutDesigns() && server.current) {
+  if (filesOnly() && platform.platform === "desktop" && settings.general.newLayoutDesigns()) {
     return (
       <DialogSelectFileV2
-        server={server.current}
+        server={serverSDK().server}
         mode="file"
         start={projectDirectory()}
         title={language.t("session.header.searchFiles")}

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

@@ -59,6 +59,7 @@ const ModelList: Component<{
           class="w-full"
           placement="right-start"
           gutter={12}
+          openDelay={0}
           value={<ModelTooltip model={item} latest={item.latest} free={isFree(item.provider.id, item.cost)} />}
         >
           {node}

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

@@ -2,7 +2,7 @@
 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 { SessionComposerRegion, createSessionComposerRegionController } from "@/pages/session/composer"
 import { createPromptInputHistory, PromptInput } from "./prompt-input"
 
 function createPromptInputStoryRuntime() {
@@ -54,12 +54,6 @@ function PromptInputExample() {
       paid: true,
       loading: false,
     },
-    projects: {
-      available: [{ name: "Story project", worktree: "/tmp/story", sandboxes: [] }],
-      directory: "/tmp/story",
-      select() {},
-      add() {},
-    },
     session: {
       id: "story-session",
       tabs: {
@@ -142,7 +136,6 @@ function PromptInputWithOpenDock() {
       paid: true,
       loading: false,
     },
-    projects: { available: [], directory: "/tmp/story", select: () => {}, add: () => {} },
     session: {
       id: "story-session",
       tabs: {
@@ -166,22 +159,35 @@ function PromptInputWithOpenDock() {
     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={() => {}}
+      controller={createSessionComposerRegionController({
+        state,
+        sessionKey: () => "story-session",
+        sessionID: () => "story-session",
+        prompt: input.state,
+        ready: () => true,
+        centered: () => false,
+        todo: {
+          collapsed: () => controls.todoCollapsed,
+          onToggle: () => setControls("todoCollapsed", (collapsed) => !collapsed),
+        },
+        followup: () => undefined,
+        revert: () => undefined,
+        onResponseSubmit: () => {},
+        openParent: () => {},
+        setPromptRef: () => {},
+        setDockRef: () => {},
+      })}
+      promptInput={
+        <PromptInput
+          controls={inputControls}
+          {...input}
+          ref={() => {}}
+          newSessionWorktree=""
+          onNewSessionWorktreeReset={() => {}}
+        />
+      }
     />
   )
 }

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

@@ -4,8 +4,6 @@ import {
   createEffect,
   on,
   Component,
-  splitProps,
-  For,
   Show,
   onCleanup,
   createMemo,
@@ -13,10 +11,8 @@ import {
   createResource,
   Switch,
   Match,
-  type ComponentProps,
   type JSX,
 } from "solid-js"
-import { Popover as KobaltePopover } from "@kobalte/core/popover"
 import { createStore, type SetStoreFunction, type Store } from "solid-js/store"
 import type { useLocal } from "@/context/local"
 import { selectionFromLines, type SelectedLineRange, useFile } from "@/context/file"
@@ -36,9 +32,11 @@ import { useSync } from "@/context/sync"
 import { useComments } from "@/context/comments"
 import { Button } from "@opencode-ai/ui/button"
 import { DockShellForm, DockTray } from "@opencode-ai/ui/dock-surface"
-import { Icon, type IconProps } from "@opencode-ai/ui/icon"
+import { Icon } from "@opencode-ai/ui/icon"
 import { ProviderIcon } from "@opencode-ai/ui/provider-icon"
 import { Tooltip, TooltipKeybind } from "@opencode-ai/ui/tooltip"
+import { KeybindV2 } from "@opencode-ai/ui/v2/keybind-v2"
+import { TooltipV2 } from "@opencode-ai/ui/v2/tooltip-v2"
 import { IconButton } from "@opencode-ai/ui/icon-button"
 import { Select } from "@opencode-ai/ui/select"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
@@ -70,8 +68,6 @@ import { promptPlaceholder } from "./prompt-input/placeholder"
 import { createPromptInputTransientState } from "./prompt-input/transient-state"
 import { showToast } from "@/utils/toast"
 import { ImagePreview } from "@opencode-ai/ui/image-preview"
-import { pathKey } from "@/utils/path-key"
-import { displayName } from "@/pages/layout/helpers"
 
 export type PromptInputState = ReturnType<typeof usePrompt>
 
@@ -99,12 +95,6 @@ export type PromptInputControls = {
     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: {
@@ -175,6 +165,7 @@ export interface PromptInputProps {
   onQueue?: (draft: FollowupDraft) => void
   onAbort?: () => void
   onSubmit?: () => void
+  toolbar?: JSX.Element
 }
 
 const EXAMPLES = [
@@ -223,7 +214,6 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   let fileInputRef: HTMLInputElement | undefined
   let scrollRef!: HTMLDivElement
   let slashPopoverRef!: HTMLDivElement
-  let projectSearchRef: HTMLInputElement | undefined
 
   const mirror = { input: false }
   const inset = 56
@@ -351,11 +341,6 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
     () => prompt.capture(),
     Math.floor(Math.random() * EXAMPLES.length),
   )
-  const [picker, setPicker] = createStore({
-    projectOpen: false,
-    projectSearch: "",
-  })
-
   const buttonsSpring = useSpring(() => (store.mode === "normal" ? 1 : 0), { visualDuration: 0.2, bounce: 0 })
   const motion = (value: number) => ({
     opacity: value,
@@ -1360,9 +1345,9 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   }
 
   const agentsLoading = () => props.controls.agents.loading
-  const agentsShouldFadeIn = createMemo((prev) => prev ?? agentsLoading())
+  const agentsShouldFadeIn = createMemo<boolean>((prev) => prev ?? agentsLoading())
   const providersLoading = () => props.controls.model.loading
-  const providersShouldFadeIn = createMemo((prev) => prev ?? providersLoading())
+  const providersShouldFadeIn = createMemo<boolean>((prev) => prev ?? providersLoading())
 
   const [promptReady] = createResource(
     () => prompt.ready.promise,
@@ -1376,9 +1361,10 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
 
   const modelControlState = createMemo<ComposerModelControlState>(() => ({
     loading: providersLoading(),
+    shouldAnimate: providersShouldFadeIn(),
     paid: props.controls.model.paid,
     title: language.t("command.model.choose"),
-    keybind: command.keybind("model.choose"),
+    keybind: command.keybindParts("model.choose"),
     model: props.controls.model.selection,
     providerID: props.controls.model.selection.current()?.provider?.id,
     modelName: props.controls.model.selection.current()?.name ?? language.t("dialog.model.select.title"),
@@ -1392,75 +1378,10 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   }))
 
   const newSession = () => props.variant === "new-session"
-  const projects = createMemo(() => props.controls.projects.available)
-  const projectForDirectory = (directory: string | undefined) => {
-    if (!directory) return
-    const key = pathKey(directory)
-    return projects().find(
-      (project) => pathKey(project.worktree) === key || project.sandboxes?.some((sandbox) => pathKey(sandbox) === key),
-    )
-  }
-  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(() => props.controls.agents.visible && props.controls.agents.options.length > 0)
-  const selectProject = (worktree: string) => {
-    setPicker({
-      projectOpen: false,
-      projectSearch: "",
-    })
-    if (pathKey(worktree) === pathKey(selectedProject()?.worktree ?? "")) {
-      restoreFocus()
-      return
-    }
-    props.controls.projects.select(worktree)
-    restoreFocus()
-  }
-  const addProject = () => {
-    props.controls.projects.add(language.t("command.project.open"))
-  }
-
-  const projectPickerState = createMemo<ComposerPickerState>(() => ({
-    open: picker.projectOpen,
-    trigger: {
-      action: "prompt-project",
-      icon: "folder",
-      label: selectedProject() ? displayName(selectedProject()!) : language.t("session.new.project.new"),
-      class: "max-w-[203px]",
-      style: control(),
-      onPress: () => setPicker("projectOpen", true),
-    },
-    search: picker.projectSearch,
-    searchPlaceholder: language.t("session.new.project.search"),
-    clearLabel: language.t("common.clear"),
-    items: projectResults().map((project) => ({
-      icon: "folder",
-      label: displayName(project),
-      selected: selectedProject()?.worktree === project.worktree,
-      onSelect: () => selectProject(project.worktree),
-    })),
-    action: {
-      icon: "plus",
-      label: language.t("session.new.project.add"),
-      onSelect: () => {
-        setPicker("projectOpen", false)
-        void addProject()
-      },
-    },
-    onOpenChange: (open) => {
-      setPicker("projectOpen", open)
-      if (open) requestAnimationFrame(() => projectSearchRef?.focus())
-    },
-    onSearchInput: (value) => setPicker("projectSearch", value),
-    onSearchClear: () => setPicker("projectSearch", ""),
-    searchRef: (el) => (projectSearchRef = el),
-  }))
   const agentControlState = createMemo<ComposerAgentControlState>(() => ({
     title: language.t("command.agent.cycle"),
-    keybind: command.keybind("agent.cycle"),
+    keybind: command.keybindParts("agent.cycle"),
     options: props.controls.agents.options,
     current: props.controls.agents.current,
     style: control(),
@@ -1469,15 +1390,6 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
       restoreFocus()
     },
   }))
-  const newProjectTriggerState = createMemo<ComposerPickerTriggerState>(() => ({
-    action: "prompt-project",
-    icon: "folder-add-left",
-    label: language.t("session.new.project.new"),
-    class: "max-w-[160px]",
-    style: control(),
-    onPress: () => void addProject(),
-  }))
-
   return (
     <div class="relative size-full flex flex-col gap-0">
       {(promptReady(), null)}
@@ -1587,10 +1499,14 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
               <div class="flex h-11 items-center px-2">
                 <div class="flex min-w-0 flex-1 items-center gap-0">
                   {fileAttachmentInput()}
-                  <TooltipKeybind
+                  <TooltipV2
                     placement="top"
-                    title={language.t("prompt.action.attachFile")}
-                    keybind={command.keybind("file.attach")}
+                    value={
+                      <>
+                        {language.t("prompt.action.attachFile")}
+                        <KeybindV2 keys={command.keybindParts("file.attach")} variant="neutral" />
+                      </>
+                    }
                   >
                     <IconButton
                       data-action="prompt-attach"
@@ -1604,27 +1520,30 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                       tabIndex={store.mode === "normal" ? undefined : -1}
                       aria-label={language.t("prompt.action.attachFile")}
                     />
-                  </TooltipKeybind>
+                  </TooltipV2>
                   <Show when={showAgentControl()}>
                     <ComposerAgentControl state={agentControlState()} />
                   </Show>
-                  <Show when={newSession() && !selectedProject()}>
-                    <ComposerPickerTrigger state={newProjectTriggerState()} />
-                  </Show>
+                  {props.toolbar}
                   <ComposerModelControl state={modelControlState()} />
-                  <Show when={store.mode !== "shell" && showVariantControl()}>
+                  <Show when={!providersLoading() && store.mode !== "shell" && showVariantControl()}>
                     <div
                       data-component="prompt-variant-control"
                       classList={{
+                        "animate-in fade-in": providersShouldFadeIn(),
                         "hidden group-hover/prompt-input:block group-focus-within/prompt-input:block":
                           !props.controls.model.selection.variant.current() && !store.variantOpen,
                       }}
                     >
-                      <TooltipKeybind
+                      <TooltipV2
                         placement="top"
                         gutter={4}
-                        title={language.t("command.model.variant.cycle")}
-                        keybind={command.keybind("model.variant.cycle")}
+                        value={
+                          <>
+                            {language.t("command.model.variant.cycle")}
+                            <KeybindV2 keys={command.keybindParts("model.variant.cycle")} variant="neutral" />
+                          </>
+                        }
                       >
                         <Select
                           size="normal"
@@ -1642,11 +1561,11 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                           triggerProps={{ "data-action": "prompt-model-variant" }}
                           variant="ghost"
                         />
-                      </TooltipKeybind>
+                      </TooltipV2>
                     </div>
                   </Show>
                 </div>
-                <Tooltip placement="top" inactive={!working() && blank()} value={tip()}>
+                <TooltipV2 placement="top" inactive={!working() && blank()} value={tip()}>
                   <IconButton
                     data-action="prompt-submit"
                     type="submit"
@@ -1661,14 +1580,9 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                     }}
                     aria-label={stopping() ? language.t("prompt.action.stop") : language.t("prompt.action.send")}
                   />
-                </Tooltip>
+                </TooltipV2>
               </div>
             </DockShellForm>
-            <Show when={newSession() && selectedProject()}>
-              <div class="flex h-7 min-w-0 items-center gap-0 px-2">
-                <ComposerPicker state={projectPickerState()} />
-              </div>
-            </Show>
           </div>
         </Match>
         <Match when>
@@ -1863,7 +1777,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                     <Show when={!agentsLoading()}>
                       <div
                         data-component="prompt-agent-control"
-                        style={agentsShouldFadeIn() ? { animation: "fade-in 0.3s" } : undefined}
+                        classList={{ "animate-in fade-in duration-300": agentsShouldFadeIn() }}
                       >
                         <TooltipKeybind
                           placement="top"
@@ -1892,7 +1806,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                       <Show when={store.mode !== "shell"}>
                         <div
                           data-component="prompt-model-control"
-                          style={providersShouldFadeIn() ? { animation: "fade-in 0.3s" } : undefined}
+                          classList={{ "animate-in fade-in duration-300": providersShouldFadeIn() }}
                         >
                           <Show
                             when={props.controls.model.paid}
@@ -1971,7 +1885,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                         <Show when={showVariantControl()}>
                           <div
                             data-component="prompt-variant-control"
-                            style={providersShouldFadeIn() ? { animation: "fade-in 0.3s" } : undefined}
+                            classList={{ "animate-in fade-in duration-300": providersShouldFadeIn() }}
                           >
                             <TooltipKeybind
                               placement="top"
@@ -2010,40 +1924,9 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   )
 }
 
-type ComposerPickerItemState = {
-  icon: IconProps["name"]
-  label: string
-  selected?: boolean
-  onSelect: () => void
-}
-
-type ComposerPickerTriggerState = {
-  action: string
-  icon?: IconProps["name"]
-  label: string
-  class?: string
-  style: JSX.CSSProperties | undefined
-  onPress: () => void
-}
-
-type ComposerPickerState = {
-  open: boolean
-  trigger: ComposerPickerTriggerState
-  search: string
-  searchPlaceholder: string
-  clearLabel: string
-  items: ComposerPickerItemState[]
-  action: ComposerPickerItemState
-  listClass?: string
-  searchRef: (el: HTMLInputElement) => void
-  onOpenChange: (open: boolean) => void
-  onSearchInput: (value: string) => void
-  onSearchClear: () => void
-}
-
 type ComposerAgentControlState = {
   title: string
-  keybind: string
+  keybind: string[]
   options: string[]
   current: string
   style: JSX.CSSProperties | undefined
@@ -2052,9 +1935,10 @@ type ComposerAgentControlState = {
 
 type ComposerModelControlState = {
   loading: boolean
+  shouldAnimate: boolean
   paid: boolean
   title: string
-  keybind: string
+  keybind: string[]
   model: ReturnType<typeof useLocal>["model"]
   providerID?: string
   modelName: string
@@ -2063,97 +1947,22 @@ type ComposerModelControlState = {
   onUnpaidClick: () => void
 }
 
-function ComposerPickerTrigger(props: ComponentProps<"button"> & { state: ComposerPickerTriggerState }) {
-  const [local, rest] = splitProps(props, ["state", "class", "style", "onClick"])
-  return (
-    <button
-      {...rest}
-      data-action={local.state.action}
-      type="button"
-      class={`flex h-7 min-w-0 items-center gap-1.5 rounded px-2 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-faint transition-colors hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none ${local.state.class ?? ""}`}
-      style={local.state.style}
-      onClick={() => local.state.onPress()}
-    >
-      <Show when={local.state.icon}>
-        {(icon) => <Icon name={icon()} size="small" class="shrink-0 text-v2-icon-icon-muted" />}
-      </Show>
-      <span class="min-w-0 truncate leading-5">{local.state.label}</span>
-      <Icon name="chevron-down" size="small" class="shrink-0 text-v2-icon-icon-muted" />
-    </button>
-  )
-}
-
-function ComposerPickerMenuItem(props: { state: ComposerPickerItemState }) {
-  return (
-    <button
-      type="button"
-      class="flex h-7 w-full items-center gap-2 rounded px-3 text-left text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-base hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none"
-      onClick={props.state.onSelect}
-    >
-      <Icon name={props.state.icon} size="small" class="shrink-0 text-v2-icon-icon-base" />
-      <span class="min-w-0 flex-1 truncate leading-5">{props.state.label}</span>
-      <Show when={props.state.selected}>
-        <Icon name="check-small" size="small" class="shrink-0 text-v2-icon-icon-base" />
-      </Show>
-    </button>
-  )
-}
-
-function ComposerPicker(props: { state: ComposerPickerState }) {
-  return (
-    <KobaltePopover
-      open={props.state.open}
-      placement="bottom-start"
-      gutter={4}
-      modal={false}
-      onOpenChange={props.state.onOpenChange}
-    >
-      <KobaltePopover.Trigger as={ComposerPickerTrigger} state={props.state.trigger} />
-      <KobaltePopover.Portal>
-        <KobaltePopover.Content
-          class="w-[243px] overflow-hidden rounded-md bg-v2-background-bg-layer-01 shadow-[var(--v2-elevation-floating)] focus:outline-none"
-          onOpenAutoFocus={(event) => event.preventDefault()}
-        >
-          <div class={`flex flex-col p-0.5 ${props.state.listClass ?? ""}`}>
-            <div class="flex h-7 items-center gap-2 rounded px-3 text-v2-icon-icon-muted">
-              <Icon name="magnifying-glass" size="small" class="shrink-0" />
-              <input
-                ref={props.state.searchRef}
-                value={props.state.search}
-                placeholder={props.state.searchPlaceholder}
-                class="h-7 min-w-0 flex-1 border-0 bg-transparent text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-base outline-none placeholder:text-v2-text-text-faint"
-                onInput={(event) => props.state.onSearchInput(event.currentTarget.value)}
-              />
-              <Show when={props.state.search.trim()}>
-                <button
-                  type="button"
-                  class="flex size-5 items-center justify-center rounded text-v2-icon-icon-muted hover:bg-v2-overlay-simple-overlay-hover"
-                  onClick={props.state.onSearchClear}
-                  aria-label={props.state.clearLabel}
-                >
-                  <Icon name="close-small" size="small" />
-                </button>
-              </Show>
-            </div>
-            <For each={props.state.items}>{(item) => <ComposerPickerMenuItem state={item} />}</For>
-          </div>
-          <div class="h-px bg-v2-border-border-muted" />
-          <div class="flex flex-col p-0.5">
-            <ComposerPickerMenuItem state={props.state.action} />
-          </div>
-        </KobaltePopover.Content>
-      </KobaltePopover.Portal>
-    </KobaltePopover>
-  )
-}
-
 function ComposerAgentControl(props: { state: ComposerAgentControlState }) {
   return (
     <div class="relative">
       <div class="pointer-events-none absolute left-2 top-1/2 z-10 flex size-4 -translate-y-1/2 items-center justify-center text-v2-icon-icon-muted">
         <Icon name="sliders" size="small" />
       </div>
-      <TooltipKeybind placement="top" gutter={4} title={props.state.title} keybind={props.state.keybind}>
+      <TooltipV2
+        placement="top"
+        gutter={4}
+        value={
+          <>
+            {props.state.title}
+            <KeybindV2 keys={props.state.keybind} variant="neutral" />
+          </>
+        }
+      >
         <Select
           size="normal"
           options={props.state.options}
@@ -2165,7 +1974,7 @@ function ComposerAgentControl(props: { state: ComposerAgentControlState }) {
           triggerProps={{ "data-action": "prompt-agent" }}
           variant="ghost"
         />
-      </TooltipKeybind>
+      </TooltipV2>
     </div>
   )
 }
@@ -2176,13 +1985,23 @@ function ComposerModelControl(props: { state: ComposerModelControlState }) {
       <Show
         when={props.state.paid}
         fallback={
-          <TooltipKeybind placement="top" gutter={4} title={props.state.title} keybind={props.state.keybind}>
+          <TooltipV2
+            placement="top"
+            gutter={4}
+            value={
+              <>
+                {props.state.title}
+                <KeybindV2 keys={props.state.keybind} variant="neutral" />
+              </>
+            }
+          >
             <Button
               data-action="prompt-model"
               as="div"
               variant="ghost"
               size="normal"
               class="min-w-0 max-w-[220px] justify-start text-[13px] font-[440] leading-5 text-v2-text-text-faint group"
+              classList={{ "animate-in fade-in": props.state.shouldAnimate }}
               style={props.state.style}
               onClick={props.state.onUnpaidClick}
             >
@@ -2200,10 +2019,19 @@ function ComposerModelControl(props: { state: ComposerModelControlState }) {
                 <Icon name="chevron-down" size="small" class="text-v2-icon-icon-muted" />
               </span>
             </Button>
-          </TooltipKeybind>
+          </TooltipV2>
         }
       >
-        <TooltipKeybind placement="top" gutter={4} title={props.state.title} keybind={props.state.keybind}>
+        <TooltipV2
+          placement="top"
+          gutter={4}
+          value={
+            <>
+              {props.state.title}
+              <KeybindV2 keys={props.state.keybind} variant="neutral" />
+            </>
+          }
+        >
           <ModelSelectorPopover
             model={props.state.model}
             triggerAs={Button}
@@ -2213,6 +2041,7 @@ function ComposerModelControl(props: { state: ComposerModelControlState }) {
               style: props.state.style,
               class:
                 "min-w-0 max-w-[220px] justify-start text-[13px] font-[440] leading-5 text-v2-text-text-faint group",
+              classList: { "animate-in fade-in": props.state.shouldAnimate },
               "data-action": "prompt-model",
             }}
             onClose={props.state.onClose}
@@ -2231,7 +2060,7 @@ function ComposerModelControl(props: { state: ComposerModelControlState }) {
               <Icon name="chevron-down" size="small" class="text-v2-icon-icon-muted" />
             </span>
           </ModelSelectorPopover>
-        </TooltipKeybind>
+        </TooltipV2>
       </Show>
     </Show>
   )

packages/app/src/components/prompt-project-selector.tsx

@@ -0,0 +1,551 @@
+import { For, Show, splitProps, type Accessor, type ComponentProps } from "solid-js"
+import { createStore } from "solid-js/store"
+import { DropdownMenu } from "@opencode-ai/ui/dropdown-menu"
+import { Icon } from "@opencode-ai/ui/icon"
+import { Icon as IconV2 } from "@opencode-ai/ui/v2/icon"
+import { ProjectAvatar } from "@opencode-ai/ui/v2/project-avatar-v2"
+import { getProjectAvatarVariant } from "@/context/layout"
+import { useLanguage } from "@/context/language"
+import { displayName, getProjectAvatarSource } from "@/pages/layout/helpers"
+import { pathKey } from "@/utils/path-key"
+
+export type PromptProject = {
+  name?: string
+  id?: string
+  worktree: string
+  sandboxes?: string[]
+  icon?: { color?: string; url?: string; override?: string }
+  server?: { key: string; name: string }
+}
+
+export type PromptProjectControls = {
+  available: PromptProject[]
+  directory: string
+  server?: string
+  select: (worktree: string, server?: string) => void
+  add: (title: string, server?: string) => void
+}
+
+const actionPrefix = "action:"
+const projectPrefix = "project:"
+
+function projectKey(project: PromptProject) {
+  return `${projectPrefix}${encodeURIComponent(project.server?.key ?? "")}:${encodeURIComponent(project.worktree)}`
+}
+
+function actionKey(server?: string) {
+  return `${actionPrefix}${encodeURIComponent(server ?? "")}`
+}
+
+export function createPromptProjectController(input: {
+  controls: Accessor<PromptProjectControls>
+  onDone: () => void
+}) {
+  const language = useLanguage()
+  const [store, setStore] = createStore({ open: false, search: "", active: "" })
+  let searchRef: HTMLInputElement | undefined
+
+  const selected = () => {
+    const key = pathKey(input.controls().directory)
+    return input
+      .controls()
+      .available.find(
+        (project) =>
+          (!project.server || project.server.key === input.controls().server) &&
+          (pathKey(project.worktree) === key || project.sandboxes?.some((sandbox) => pathKey(sandbox) === key)),
+      )
+  }
+  const projects = () => {
+    const search = store.search.trim().toLowerCase()
+    if (!search) return input.controls().available
+    return input.controls().available.filter((project) => displayName(project).toLowerCase().includes(search))
+  }
+  const servers = () =>
+    input
+      .controls()
+      .available.map((project) => project.server)
+      .filter((server, index, all) => server && all.findIndex((item) => item?.key === server.key) === index)
+  const keys = () => {
+    if (servers().length <= 1) {
+      return [...projects().map(projectKey), actionKey(servers()[0]?.key)]
+    }
+    return [
+      ...servers().flatMap((server) =>
+        projects()
+          .filter((project) => project.server?.key === server!.key)
+          .map(projectKey),
+      ),
+      actionKey(),
+    ]
+  }
+  const initialActive = () => {
+    const selectedKey = selected() ? projectKey(selected()!) : undefined
+    const options = keys()
+    if (selectedKey && options.includes(selectedKey)) return selectedKey
+    return options[0] ?? ""
+  }
+  const close = () => {
+    setStore({ open: false, search: "", active: "" })
+    input.onDone()
+  }
+  const select = (project: PromptProject) => {
+    if (
+      pathKey(project.worktree) !== pathKey(selected()?.worktree ?? "") ||
+      project.server?.key !== selected()?.server?.key
+    ) {
+      input.controls().select(project.worktree, project.server?.key)
+    }
+    close()
+  }
+  const add = (server?: string) => {
+    setStore({ open: false, search: "", active: "" })
+    input.controls().add(language.t("command.project.open"), server)
+  }
+
+  return {
+    selected,
+    projects,
+    servers,
+    projectKey,
+    actionKey,
+    open: () => store.open,
+    search: () => store.search,
+    active: () => store.active,
+    labels: {
+      add: () => language.t("session.new.project.add"),
+      clear: () => language.t("common.clear"),
+      new: () => language.t("session.new.project.new"),
+      search: () => language.t("session.new.project.search"),
+    },
+    add,
+    select,
+    setOpen(open: boolean) {
+      if (open) {
+        setStore({ open: true, active: initialActive() })
+        setTimeout(() => requestAnimationFrame(() => searchRef?.focus()))
+        return
+      }
+      setStore({ open: false, search: "", active: "" })
+    },
+    setSearch(value: string) {
+      const search = value.trim().toLowerCase()
+      const first = input
+        .controls()
+        .available.find((project) => !search || displayName(project).toLowerCase().includes(search))
+      setStore({
+        search: value,
+        active: first ? projectKey(first) : actionKey(servers().length > 1 ? undefined : servers()[0]?.key),
+      })
+    },
+    clearSearch() {
+      setStore({ search: "", active: initialActive() })
+      setTimeout(() => searchRef?.focus())
+    },
+    setActive(key: string) {
+      setStore("active", key)
+    },
+    moveActive(delta: number) {
+      const options = keys()
+      if (options.length === 0) return
+      const index = options.indexOf(store.active)
+      const start = index === -1 ? 0 : index
+      setStore("active", options[(start + delta + options.length) % options.length])
+    },
+    activeProject() {
+      return store.active.startsWith(projectPrefix)
+        ? projects().find((project) => projectKey(project) === store.active)
+        : undefined
+    },
+    activeServer() {
+      return store.active.startsWith(actionPrefix)
+        ? decodeURIComponent(store.active.slice(actionPrefix.length)) || undefined
+        : undefined
+    },
+    activeAction() {
+      return store.active.startsWith(actionPrefix)
+    },
+    setSearchRef(el: HTMLInputElement) {
+      searchRef = el
+    },
+    focusSearch() {
+      setTimeout(() => requestAnimationFrame(() => searchRef?.focus()))
+    },
+  }
+}
+
+export type PromptProjectController = ReturnType<typeof createPromptProjectController>
+
+export function PromptProjectSelector(props: {
+  controller: PromptProjectController
+  placement?: "bottom" | "bottom-start"
+}) {
+  let contentRef: HTMLDivElement | undefined
+  let restoreTrigger = true
+
+  const activeItem = () =>
+    props.controller.active()
+      ? contentRef?.querySelector<HTMLElement>(`[data-option-key="${CSS.escape(props.controller.active())}"]`)
+      : undefined
+  const afterClose = (callback: () => void) => {
+    const complete = () => {
+      if (contentRef?.isConnected) {
+        requestAnimationFrame(complete)
+        return
+      }
+      requestAnimationFrame(() => requestAnimationFrame(callback))
+    }
+    requestAnimationFrame(complete)
+  }
+  const selectProject = (project: PromptProject) => {
+    restoreTrigger = false
+    props.controller.setOpen(false)
+    afterClose(() => props.controller.select(project))
+  }
+  const selectAction = (server?: string) => {
+    restoreTrigger = false
+    props.controller.setOpen(false)
+    afterClose(() => props.controller.add(server))
+  }
+  const selectActive = () => {
+    const project = props.controller.activeProject()
+    if (project) {
+      selectProject(project)
+      return
+    }
+    if (props.controller.activeAction() && props.controller.servers().length > 1) {
+      const item = activeItem()
+      item?.focus()
+      item?.dispatchEvent(new KeyboardEvent("keydown", { key: "ArrowRight", bubbles: true }))
+      return
+    }
+    selectAction(props.controller.activeServer())
+  }
+  const moveActive = (delta: number) => {
+    props.controller.moveActive(delta)
+    queueMicrotask(() => activeItem()?.scrollIntoView({ block: "nearest" }))
+  }
+  const focusPreviousControl = () => {
+    const target = Array.from(
+      document.querySelectorAll<HTMLElement>(
+        'button:not([disabled]), a[href], input:not([disabled]), select:not([disabled]), textarea:not([disabled]), [tabindex]:not([tabindex="-1"])',
+      ),
+    )
+      .filter((element) => !contentRef?.contains(element) && !element.hasAttribute("data-focus-trap"))
+      .findLast((element) => element.offsetParent !== null)
+    restoreTrigger = false
+    target?.focus()
+    queueMicrotask(() => {
+      if (props.controller.open()) props.controller.setOpen(false)
+    })
+  }
+  const selectedValue = () => {
+    const project = props.controller.selected()
+    return project ? props.controller.projectKey(project) : undefined
+  }
+
+  return (
+    <DropdownMenu
+      open={props.controller.open()}
+      placement={props.placement ?? "bottom"}
+      gutter={4}
+      modal={false}
+      onOpenChange={(open) => props.controller.setOpen(open)}
+    >
+      <DropdownMenu.Trigger as={ProjectTrigger} controller={props.controller} />
+      <DropdownMenu.Portal>
+        <DropdownMenu.Content
+          ref={contentRef}
+          id="prompt-project-menu"
+          class="w-[243px] overflow-hidden rounded-md border-0 bg-v2-background-bg-layer-01 p-0 shadow-[var(--v2-elevation-floating)] focus:outline-none [&[data-closed]]:!animate-none"
+          onOpenAutoFocus={(event) => event.preventDefault()}
+          onPointerDownOutside={() => (restoreTrigger = false)}
+          onFocusOutside={() => (restoreTrigger = false)}
+          onCloseAutoFocus={(event) => {
+            if (!restoreTrigger) event.preventDefault()
+          }}
+        >
+          <div class="flex flex-col p-0.5">
+            <div class="flex h-7 items-center gap-2 rounded-sm pl-3 pr-2.5 text-v2-icon-icon-muted">
+              <Icon name="magnifying-glass" size="small" class="shrink-0" />
+              <input
+                ref={(el) => props.controller.setSearchRef(el)}
+                value={props.controller.search()}
+                placeholder={props.controller.labels.search()}
+                aria-autocomplete="list"
+                aria-controls="prompt-project-menu"
+                aria-activedescendant={props.controller.active() || undefined}
+                class="h-7 min-w-0 flex-1 border-0 bg-transparent text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-base outline-none placeholder:text-v2-text-text-faint"
+                onInput={(event) => props.controller.setSearch(event.currentTarget.value)}
+                onKeyDown={(event) => {
+                  if (event.key === "Tab") {
+                    event.preventDefault()
+                    event.stopPropagation()
+                    if (event.shiftKey) {
+                      focusPreviousControl()
+                      return
+                    }
+                    activeItem()?.focus()
+                    return
+                  }
+                  event.stopPropagation()
+                  if (event.key === "Escape") {
+                    event.preventDefault()
+                    props.controller.setOpen(false)
+                    return
+                  }
+                  if (event.altKey || event.metaKey) return
+                  if (event.key === "ArrowDown") {
+                    event.preventDefault()
+                    moveActive(1)
+                    return
+                  }
+                  if (event.key === "ArrowUp") {
+                    event.preventDefault()
+                    moveActive(-1)
+                    return
+                  }
+                  if (event.key === "Enter" && !event.isComposing) {
+                    event.preventDefault()
+                    selectActive()
+                  }
+                }}
+              />
+              <Show when={props.controller.search().trim()}>
+                <button
+                  type="button"
+                  class="flex size-5 items-center justify-center rounded-sm text-v2-icon-icon-muted hover:bg-v2-overlay-simple-overlay-hover"
+                  onPointerDown={(event) => event.preventDefault()}
+                  onClick={() => props.controller.clearSearch()}
+                  aria-label={props.controller.labels.clear()}
+                >
+                  <Icon name="close-small" size="small" />
+                </button>
+              </Show>
+            </div>
+            <Show
+              when={props.controller.servers().length > 1}
+              fallback={
+                <DropdownMenu.RadioGroup value={selectedValue()}>
+                  <For each={props.controller.projects()}>
+                    {(project) => (
+                      <ProjectItem project={project} controller={props.controller} onSelect={selectProject} />
+                    )}
+                  </For>
+                </DropdownMenu.RadioGroup>
+              }
+            >
+              <For
+                each={props.controller
+                  .servers()
+                  .filter((server) =>
+                    props.controller.projects().some((project) => project.server?.key === server!.key),
+                  )}
+              >
+                {(server) => (
+                  <div>
+                    <div class="flex h-7 select-none items-center pl-1.5 pr-3 text-[11px] font-[530] leading-none tracking-[0.05px] text-v2-text-text-faint">
+                      {server!.name}
+                    </div>
+                    <DropdownMenu.RadioGroup value={selectedValue()}>
+                      <For each={props.controller.projects().filter((project) => project.server?.key === server!.key)}>
+                        {(project) => (
+                          <ProjectItem project={project} controller={props.controller} onSelect={selectProject} />
+                        )}
+                      </For>
+                    </DropdownMenu.RadioGroup>
+                  </div>
+                )}
+              </For>
+            </Show>
+          </div>
+          <div class="h-px bg-v2-border-border-muted" />
+          <div class="flex flex-col p-0.5">
+            <Show
+              when={props.controller.servers().length > 1}
+              fallback={
+                <ProjectAction
+                  server={props.controller.servers()[0]?.key}
+                  controller={props.controller}
+                  onSelect={selectAction}
+                />
+              }
+            >
+              <DropdownMenu.Sub>
+                <DropdownMenu.SubTrigger
+                  id={props.controller.actionKey()}
+                  data-option-key={props.controller.actionKey()}
+                  class={projectActionClass}
+                  classList={{
+                    "!bg-v2-overlay-simple-overlay-hover": props.controller.active() === props.controller.actionKey(),
+                  }}
+                  onMouseEnter={() => props.controller.setActive(props.controller.actionKey())}
+                >
+                  <Icon name="plus" size="small" />
+                  <span data-slot="dropdown-menu-item-label" class="min-w-0 flex-1 truncate leading-5">
+                    {props.controller.labels.add()}
+                  </span>
+                  <Icon name="chevron-right" size="small" class="shrink-0 text-v2-icon-icon-muted" />
+                </DropdownMenu.SubTrigger>
+                <DropdownMenu.Portal>
+                  <DropdownMenu.SubContent class="min-w-[180px] overflow-hidden rounded-md border-0 bg-v2-background-bg-layer-01 p-0.5 shadow-[var(--v2-elevation-floating)] focus:outline-none">
+                    <For each={props.controller.servers()}>
+                      {(server) => <ServerAction server={server!} onSelect={selectAction} />}
+                    </For>
+                  </DropdownMenu.SubContent>
+                </DropdownMenu.Portal>
+              </DropdownMenu.Sub>
+            </Show>
+          </div>
+        </DropdownMenu.Content>
+      </DropdownMenu.Portal>
+    </DropdownMenu>
+  )
+}
+
+export function PromptProjectAddButton(props: { controller: PromptProjectController }) {
+  return (
+    <button
+      data-action="prompt-project"
+      type="button"
+      class="flex h-7 min-w-0 max-w-[160px] items-center gap-1.5 rounded-sm px-2 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-faint transition-colors hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none"
+      onClick={() => props.controller.add()}
+    >
+      <Icon name="folder-add-left" size="small" class="shrink-0 text-v2-icon-icon-muted" />
+      <span class="min-w-0 truncate leading-5">{props.controller.labels.new()}</span>
+      <Icon name="chevron-down" size="small" class="shrink-0 text-v2-icon-icon-muted" />
+    </button>
+  )
+}
+
+function ProjectTrigger(props: ComponentProps<"button"> & { controller: PromptProjectController }) {
+  const [local, rest] = splitProps(props, ["controller", "class", "classList", "onClick", "onKeyDown"])
+  const project = () => local.controller.selected()
+  return (
+    <button
+      {...rest}
+      data-action="prompt-project"
+      type="button"
+      class="flex h-7 min-w-0 max-w-[203px] items-center gap-1.5 rounded-sm px-1.5 transition-colors focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none"
+      classList={{
+        ...local.classList,
+        "hover:bg-v2-overlay-simple-overlay-hover": !local.controller.open(),
+        "bg-v2-overlay-simple-overlay-pressed": local.controller.open(),
+        "text-v2-text-text-muted": local.controller.open(),
+      }}
+      onClick={local.onClick ?? (() => local.controller.setOpen(true))}
+      onKeyDown={(event) => {
+        if (!local.controller.open() && (event.key === "ArrowDown" || event.key === "ArrowUp")) {
+          event.preventDefault()
+          event.stopPropagation()
+          return
+        }
+        if (typeof local.onKeyDown === "function") local.onKeyDown(event)
+      }}
+    >
+      <Show
+        when={project()}
+        fallback={<Icon name="folder-add-left" size="small" class="shrink-0 text-v2-icon-icon-muted" />}
+      >
+        {(item) => (
+          <ProjectAvatar
+            fallback={displayName(item())}
+            src={getProjectAvatarSource(item().id, item().icon)}
+            variant={getProjectAvatarVariant(item().icon?.color)}
+          />
+        )}
+      </Show>
+      <span class="min-w-0 truncate leading-5">
+        {project() ? displayName(project()!) : local.controller.labels.new()}
+      </span>
+      <Icon name="chevron-down" size="small" class="shrink-0 text-v2-icon-icon-muted" />
+    </button>
+  )
+}
+
+function ProjectItem(props: {
+  project: PromptProject
+  controller: PromptProjectController
+  onSelect: (project: PromptProject) => void
+}) {
+  const key = () => props.controller.projectKey(props.project)
+  return (
+    <DropdownMenu.RadioItem
+      id={key()}
+      value={key()}
+      data-option-key={key()}
+      class="h-7 gap-2 rounded-sm px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-base data-[highlighted]:!bg-v2-overlay-simple-overlay-hover"
+      classList={{ "!bg-v2-overlay-simple-overlay-hover": props.controller.active() === key() }}
+      style={{
+        "font-family": "var(--v2-font-family-sans)",
+        "font-size": "13px",
+        "font-weight": 440,
+        "line-height": "20px",
+        "letter-spacing": "-0.04px",
+        color: "var(--v2-text-text-base)",
+        padding: "0 12px",
+      }}
+      closeOnSelect
+      onMouseEnter={() => {
+        props.controller.setActive(key())
+        props.controller.focusSearch()
+      }}
+      onSelect={() => props.onSelect(props.project)}
+    >
+      <ProjectAvatar
+        fallback={displayName(props.project)}
+        src={getProjectAvatarSource(props.project.id, props.project.icon)}
+        variant={getProjectAvatarVariant(props.project.icon?.color)}
+      />
+      <DropdownMenu.ItemLabel class="min-w-0 truncate leading-5">{displayName(props.project)}</DropdownMenu.ItemLabel>
+      <DropdownMenu.ItemIndicator style={{ width: "14px", height: "14px", right: "12px" }}>
+        <IconV2 name="check" size="small" class="shrink-0 text-v2-icon-icon-base" />
+      </DropdownMenu.ItemIndicator>
+    </DropdownMenu.RadioItem>
+  )
+}
+
+const projectActionClass =
+  "h-7 gap-2 rounded-sm px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-base [font-family:var(--v2-font-family-sans)] data-[highlighted]:!bg-v2-overlay-simple-overlay-hover"
+
+function ProjectAction(props: {
+  server?: string
+  controller: PromptProjectController
+  onSelect: (server?: string) => void
+}) {
+  const key = () => props.controller.actionKey(props.server)
+  return (
+    <DropdownMenu.Item
+      id={key()}
+      data-option-key={key()}
+      class="h-7 gap-2 rounded-sm px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-base data-[highlighted]:!bg-v2-overlay-simple-overlay-hover"
+      classList={{ "!bg-v2-overlay-simple-overlay-hover": props.controller.active() === key() }}
+      style={{
+        "font-family": "var(--v2-font-family-sans)",
+        "font-size": "13px",
+        "font-weight": 440,
+        "line-height": "20px",
+        "letter-spacing": "-0.04px",
+        color: "var(--v2-text-text-base)",
+        padding: "0 12px",
+      }}
+      onMouseEnter={() => {
+        props.controller.setActive(key())
+        props.controller.focusSearch()
+      }}
+      onSelect={() => props.onSelect(props.server)}
+    >
+      <Icon name="plus" size="small" />
+      <DropdownMenu.ItemLabel class="min-w-0 truncate leading-5">
+        {props.controller.labels.add()}
+      </DropdownMenu.ItemLabel>
+    </DropdownMenu.Item>
+  )
+}
+
+function ServerAction(props: { server: { key: string; name: string }; onSelect: (server: string) => void }) {
+  return (
+    <DropdownMenu.Item class={projectActionClass} onSelect={() => props.onSelect(props.server.key)}>
+      <DropdownMenu.ItemLabel class="min-w-0 flex-1 truncate leading-5">{props.server.name}</DropdownMenu.ItemLabel>
+    </DropdownMenu.Item>
+  )
+}

packages/app/src/components/prompt-workspace-selector.tsx

@@ -0,0 +1,102 @@
+import { For, Show } from "solid-js"
+import { MenuV2 } from "@opencode-ai/ui/v2/menu-v2"
+import { Icon } from "@opencode-ai/ui/icon"
+import { Icon as IconV2 } from "@opencode-ai/ui/v2/icon"
+import { getFilename } from "@opencode-ai/core/util/path"
+import { useLanguage } from "@/context/language"
+
+export function PromptWorkspaceSelector(props: {
+  value: string
+  projectRoot: string
+  workspaces: string[]
+  branch?: string
+  onChange: (value: string) => void
+  onDone: () => void
+}) {
+  const language = useLanguage()
+  let pending: string | undefined
+  const selected = () => (props.value === props.projectRoot ? "main" : props.value)
+  const icon = () => {
+    if (selected() === "main") return "monitor"
+    if (selected() === "create") return "workspace-new"
+    return "workspace"
+  }
+  const select = (value: string) => {
+    pending = value
+  }
+  const onOpenChange = (open: boolean) => {
+    if (open) return
+    const value = pending
+    pending = undefined
+    if (value) props.onChange(value)
+    props.onDone()
+  }
+  const label = () => {
+    if (selected() === "main") return language.t("session.new.workspace.triggerLocal")
+    if (props.value === "create") return language.t("workspace.new")
+    return getFilename(props.value)
+  }
+
+  return (
+    <>
+      <span class="hidden select-none opacity-50 sm:inline mx-1">/</span>
+      <MenuV2 placement="bottom" gutter={4} onOpenChange={onOpenChange}>
+        <MenuV2.Trigger class="flex h-7 min-w-0 max-w-[203px] items-center gap-1.5 rounded-sm px-1.5 hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none data-[expanded]:bg-v2-overlay-simple-overlay-pressed data-[expanded]:text-v2-text-text-muted">
+          <IconV2 name={icon()} class="shrink-0 text-v2-icon-icon-muted" />
+          <span class="min-w-0 truncate">{label()}</span>
+          <Icon name="chevron-down" size="small" class="shrink-0 text-v2-icon-icon-muted" />
+        </MenuV2.Trigger>
+        <MenuV2.Portal>
+          <MenuV2.Content class="w-[180px]">
+            <MenuV2.Group>
+              <MenuV2.GroupLabel>{language.t("session.new.workspace.runIn")}</MenuV2.GroupLabel>
+              <MenuV2.Item onSelect={() => select("main")}>
+                <IconV2 name="monitor" />
+                <span class="min-w-0 flex-1 truncate">{language.t("session.new.workspace.local")}</span>
+                <Show when={selected() === "main"}>
+                  <Icon name="check" size="small" class="shrink-0" />
+                </Show>
+              </MenuV2.Item>
+              <MenuV2.Item onSelect={() => select("create")}>
+                <IconV2 name="workspace-new" />
+                <span class="min-w-0 flex-1 truncate">{language.t("workspace.new")}</span>
+                <Show when={selected() === "create"}>
+                  <Icon name="check" size="small" class="shrink-0" />
+                </Show>
+              </MenuV2.Item>
+            </MenuV2.Group>
+            <Show when={props.workspaces.length > 0}>
+              <MenuV2.Separator />
+              <MenuV2.Sub gutter={0} overlap overflowPadding={8}>
+                <MenuV2.SubTrigger>
+                  <IconV2 name="workspace" />
+                  {language.t("session.new.workspace.existing")}
+                </MenuV2.SubTrigger>
+                <MenuV2.Portal>
+                  <MenuV2.SubContent class="max-w-[200px]">
+                    <For each={props.workspaces}>
+                      {(workspace) => (
+                        <MenuV2.Item onSelect={() => select(workspace)}>
+                          <IconV2 name="workspace-isolated" />
+                          <span class="min-w-0 flex-1 truncate">{getFilename(workspace)}</span>
+                          <Show when={selected() === workspace}>
+                            <Icon name="check" size="small" class="shrink-0" />
+                          </Show>
+                        </MenuV2.Item>
+                      )}
+                    </For>
+                  </MenuV2.SubContent>
+                </MenuV2.Portal>
+              </MenuV2.Sub>
+            </Show>
+          </MenuV2.Content>
+        </MenuV2.Portal>
+      </MenuV2>
+      <span class="hidden select-none opacity-50 sm:inline mx-1">/</span>
+      <div class="flex h-7 min-w-0 max-w-[220px] items-center gap-1.5 px-2 text-[13px] font-[440] leading-5 tracking-[-0.04px]">
+        <Icon name="branch" size="small" class="shrink-0 text-v2-icon-icon-muted" />
+        <span class="min-w-0 truncate">{props.branch || "main"}</span>
+      </div>
+    </>
+  )
+}

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

@@ -0,0 +1,43 @@
+import { useParams } from "@solidjs/router"
+import { onCleanup } from "solid-js"
+import { useCommand } from "@/context/command"
+import { useLanguage } from "@/context/language"
+import { useDialog } from "@opencode-ai/ui/context/dialog"
+
+export function useSettingsDialog() {
+  const dialog = useDialog()
+  const params = useParams<{ id?: string }>()
+  let run = 0
+  let dead = false
+
+  onCleanup(() => {
+    dead = true
+  })
+
+  return () => {
+    const current = ++run
+    const sessionID = params.id
+    void import("@/components/settings-v2").then((module) => {
+      if (dead || run !== current) return
+      void dialog.show(() => <module.DialogSettings sessionID={sessionID} />)
+    })
+  }
+}
+
+export function useSettingsCommand() {
+  const command = useCommand()
+  const language = useLanguage()
+  const show = useSettingsDialog()
+
+  command.register("settings", () => [
+    {
+      id: "settings.open",
+      title: language.t("command.settings.open"),
+      category: language.t("command.category.settings"),
+      keybind: "mod+comma",
+      onSelect: show,
+    },
+  ])
+
+  return show
+}

packages/app/src/components/settings-v2/dialog-server-v2.tsx

@@ -1,5 +1,6 @@
 import { ButtonV2 } from "@opencode-ai/ui/v2/button-v2"
-import { Dialog, DialogFooter } from "@opencode-ai/ui/v2/dialog-v2"
+import { Dialog, DialogBody, DialogFooter, DialogHeader, DialogTitle } from "@opencode-ai/ui/v2/dialog-v2"
+import { DividerV2 } from "@opencode-ai/ui/v2/divider-v2"
 import { TextInputV2 } from "@opencode-ai/ui/v2/text-input-v2"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { type Component, Show, createEffect, createSignal, onCleanup, onMount } from "solid-js"
@@ -52,8 +53,12 @@ export const DialogServerV2: Component<{
   }
 
   return (
-    <Dialog title={title()} fit class="settings-v2-server-dialog">
-      <div class="flex w-full min-w-0 flex-1 flex-col px-4">
+    <Dialog fit class="settings-v2-server-dialog">
+      <DialogHeader hideClose={true}>
+        <DialogTitle>{title()}</DialogTitle>
+      </DialogHeader>
+      <DividerV2 />
+      <DialogBody class="flex w-full min-w-0 flex-1 flex-col px-4 pt-4 pb-2">
         <div class="flex w-full min-w-0 flex-col gap-6">
           <div class="flex w-full min-w-0 flex-col gap-2">
             <label class="settings-v2-server-dialog-label">{language.t("dialog.server.add.url")}</label>
@@ -115,7 +120,7 @@ export const DialogServerV2: Component<{
             </div>
           </div>
         </div>
-      </div>
+      </DialogBody>
       <DialogFooter>
         <ButtonV2 variant="neutral" disabled={controller.formBusy()} onClick={() => dialog.close()}>
           {language.t("common.cancel")}

packages/app/src/components/settings-v2/dialog-settings-v2.tsx

@@ -11,7 +11,9 @@ import { SettingsModelsV2 } from "./models"
 import "./settings-v2.css"
 import { SettingsServersV2 } from "./servers"
 
-export const DialogSettings: Component = () => {
+export const DialogSettings: Component<{
+  sessionID?: string
+}> = (props) => {
   const language = useLanguage()
   const platform = usePlatform()
 
@@ -62,7 +64,7 @@ export const DialogSettings: Component = () => {
           </div>
         </TabsV2.List>
         <TabsV2.Content value="general" class="settings-v2-panel">
-          <SettingsGeneralV2 />
+          <SettingsGeneralV2 sessionID={props.sessionID} />
         </TabsV2.Content>
         <TabsV2.Content value="shortcuts" class="settings-v2-panel">
           <SettingsKeybinds v2 />

packages/app/src/components/settings-v2/general.tsx

@@ -6,7 +6,6 @@ import { Switch } from "@opencode-ai/ui/v2/switch-v2"
 import { TextInputV2 } from "@opencode-ai/ui/v2/text-input-v2"
 import { useTheme, type ColorScheme } from "@opencode-ai/ui/theme/context"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
-import { useParams } from "@solidjs/router"
 import { useLanguage } from "@/context/language"
 import { usePermission } from "@/context/permission"
 import { usePlatform } from "@/context/platform"
@@ -25,7 +24,6 @@ import {
   terminalInput,
   useSettings,
 } from "@/context/settings"
-import { decode64 } from "@/utils/base64"
 import { playSoundById, SOUND_OPTIONS } from "@/utils/sound"
 import { Link } from "../link"
 import { SettingsListV2 } from "./parts/list"
@@ -82,50 +80,46 @@ const playDemoSound = (id: string | undefined) => {
   }, 100)
 }
 
-export const SettingsGeneralV2: Component = () => {
+export const SettingsGeneralV2: Component<{
+  sessionID?: string
+}> = (props) => {
   const theme = useTheme()
   const language = useLanguage()
   const permission = usePermission()
   const platform = usePlatform()
   const dialog = useDialog()
-  const params = useParams()
   const settings = useSettings()
+  const serverSync = useServerSync()
+  const serverSdk = useServerSDK()
   const mobile = createMediaQuery("(max-width: 767px)")
 
   const updater = useUpdaterAction()
 
-  const dir = createMemo(() => decode64(params.dir))
+  const dir = createMemo(() => {
+    if (!props.sessionID) return undefined
+    return serverSync().session.lineage.peek(props.sessionID)?.session.directory
+  })
   const accepting = createMemo(() => {
     const value = dir()
-    if (!value) return false
-    if (!params.id) return permission.isAutoAcceptingDirectory(value)
-    return permission.isAutoAccepting(params.id, value)
+    if (!value || !props.sessionID) return false
+    return permission.isAutoAccepting(props.sessionID, value)
   })
 
   const toggleAccept = (checked: boolean) => {
     const value = dir()
-    if (!value) return
-
-    if (!params.id) {
-      if (permission.isAutoAcceptingDirectory(value) === checked) return
-      permission.toggleAutoAcceptDirectory(value)
-      return
-    }
+    if (!value || !props.sessionID) return
 
     if (checked) {
-      permission.enableAutoAccept(params.id, value)
+      permission.enableAutoAccept(props.sessionID, value)
       return
     }
 
-    permission.disableAutoAccept(params.id, value)
+    permission.disableAutoAccept(props.sessionID, value)
   }
   const desktop = createMemo(() => platform.platform === "desktop")
 
   const themeOptions = createMemo<ThemeOption[]>(() => theme.ids().map((id) => ({ id, name: theme.name(id) })))
 
-  const serverSync = useServerSync()
-  const serverSdk = useServerSDK()
-
   const [shells] = createResource(
     () =>
       serverSdk()

packages/app/src/components/settings-v2/settings-v2.css

@@ -633,7 +633,7 @@
 
 [data-component="dialog-v2"].settings-v2-server-dialog [data-slot="dialog-header"] {
   align-items: center;
-  padding: 24px 24px 0;
+  padding: 24px 24px 16px;
 }
 
 [data-component="dialog-v2"].settings-v2-server-dialog [data-slot="dialog-body"] {

packages/app/src/components/status-popover.tsx

@@ -5,7 +5,8 @@ import { Icon as IconV2 } from "@opencode-ai/ui/v2/icon"
 import { Popover } from "@opencode-ai/ui/popover"
 import { Suspense, createMemo, createSignal, lazy, Show, type JSX } from "solid-js"
 import { useLanguage } from "@/context/language"
-import { useServer } from "@/context/server"
+import { ServerConnection, useServer } from "@/context/server"
+import { useServerSDK } from "@/context/server-sdk"
 import { useSync } from "@/context/sync"
 import { useGlobal } from "@/context/global"
 
@@ -81,11 +82,11 @@ export function StatusPopoverV2(props: { scope?: "server" }) {
 
 function DirectoryStatusPopover() {
   const language = useLanguage()
-  const server = useServer()
+  const server = useServerSDK()
   const global = useGlobal()
   const sync = useSync()
   const [shown, setShown] = createSignal(false)
-  const serverHealth = () => global.servers.health[server.key]?.healthy
+  const serverHealth = () => global.servers.health[ServerConnection.key(server().server)]?.healthy
   const ready = createMemo(() => serverHealth() === false || sync().data.mcp_ready)
   const mcpIssue = createMemo(() => {
     const mcp = Object.values(sync().data.mcp ?? {})

packages/app/src/components/terminal.tsx

@@ -10,7 +10,7 @@ import { matchKeybind, parseKeybind } from "@/context/command"
 import { useLanguage } from "@/context/language"
 import { usePlatform } from "@/context/platform"
 import { useSDK } from "@/context/sdk"
-import { useServer } from "@/context/server"
+import { useServerSDK } from "@/context/server-sdk"
 import { terminalFontFamily, useSettings } from "@/context/settings"
 import type { LocalPTY } from "@/context/terminal"
 import { disposeIfDisposable, getHoveredLinkText, setOptionIfSupported } from "@/utils/runtime-adapters"
@@ -160,13 +160,15 @@ export const Terminal = (props: TerminalProps) => {
   const settings = useSettings()
   const theme = useTheme()
   const language = useLanguage()
-  const server = useServer()
+  // Terminal captures its connection for the PTY lifetime, so callers must key it per server/session.
+  const connection = useServerSDK()().server
   const directory = sdk().directory
   const client = sdk().client
   const url = sdk().url
-  const auth = server.current?.http
+  const auth = connection.http
   const username = auth?.username ?? "opencode"
   const password = auth?.password ?? ""
+  const authToken = connection.type === "http" ? connection.authToken : false
   const sameOrigin = new URL(url, location.href).origin === location.origin
   let container!: HTMLDivElement
   const [local, others] = splitProps(props, ["pty", "class", "classList", "autoFocus", "onConnect", "onConnectError"])
@@ -540,7 +542,7 @@ export const Terminal = (props: TerminalProps) => {
             sameOrigin,
             username,
             password,
-            authToken: server.current?.type === "http" ? server.current.authToken : false,
+            authToken,
           }),
         )
         socket.binaryType = "arraybuffer"

packages/app/src/components/titlebar-tab-drag.test.ts

@@ -1,141 +0,0 @@
-import { describe, expect, test } from "bun:test"
-import { captureTabDragLayout, insertIndexFromVirtualLayout } from "./titlebar-tab-drag"
-import {
-  canOpenTabRename,
-  captureTabPointerDown,
-  canStartTabDrag,
-  createTabDragPreview,
-  forwardTabRef,
-  isPrimaryPointerPressed,
-  isTabCloseTarget,
-} from "./titlebar-tab-gesture"
-
-describe("titlebar tab drag", () => {
-  const layout = {
-    listLeft: 100,
-    dividerWidth: 13,
-    tabWidthById: new Map([
-      ["a", 40],
-      ["b", 40],
-      ["c", 40],
-      ["d", 40],
-    ]),
-  }
-
-  test("moves across multiple tabs from one pointer update", () => {
-    expect(insertIndexFromVirtualLayout(260, ["a", "b", "c", "d"], "a", 0, layout)).toBe(3)
-    expect(insertIndexFromVirtualLayout(90, ["a", "b", "c", "d"], "d", 3, layout)).toBe(0)
-  })
-
-  test("keeps the current index inside the left hysteresis deadband", () => {
-    expect(insertIndexFromVirtualLayout(146, ["a", "b", "c", "d"], "b", 1, layout)).toBe(1)
-  })
-
-  test("includes slot margins in captured divider width", () => {
-    const list = document.createElement("div")
-    const first = document.createElement("div")
-    const second = document.createElement("div")
-    const firstTab = document.createElement("div")
-    const secondTab = document.createElement("div")
-    first.dataset.titlebarTabSlot = ""
-    first.dataset.tabKey = "a"
-    second.dataset.titlebarTabSlot = ""
-    second.dataset.tabKey = "b"
-    second.style.marginLeft = "6px"
-    firstTab.dataset.titlebarTab = ""
-    secondTab.dataset.titlebarTab = ""
-    first.append(firstTab)
-    second.append(secondTab)
-    list.append(first, second)
-    document.body.append(list)
-    firstTab.getBoundingClientRect = () => ({ width: 40 }) as DOMRect
-    secondTab.getBoundingClientRect = () => ({ width: 40 }) as DOMRect
-    second.getBoundingClientRect = () => ({ width: 47 }) as DOMRect
-    list.getBoundingClientRect = () => ({ left: 100 }) as DOMRect
-
-    expect(captureTabDragLayout(list, ["a", "b"]).dividerWidth).toBe(13)
-    list.remove()
-  })
-
-  test("uses the list gap as the divider width", () => {
-    const list = document.createElement("div")
-    const first = document.createElement("div")
-    const second = document.createElement("div")
-    const firstTab = document.createElement("div")
-    const secondTab = document.createElement("div")
-    first.dataset.titlebarTabSlot = ""
-    first.dataset.tabKey = "a"
-    second.dataset.titlebarTabSlot = ""
-    second.dataset.tabKey = "b"
-    firstTab.dataset.titlebarTab = ""
-    secondTab.dataset.titlebarTab = ""
-    first.append(firstTab)
-    second.append(secondTab)
-    list.append(first, second)
-    list.style.columnGap = "13.5px"
-    document.body.append(list)
-
-    expect(captureTabDragLayout(list, ["a", "b"]).dividerWidth).toBe(13.5)
-    list.remove()
-  })
-})
-
-describe("titlebar tab gestures", () => {
-  test("excludes close controls from tab gestures", () => {
-    const close = document.createElement("div")
-    const button = document.createElement("button")
-    const link = document.createElement("a")
-    close.dataset.slot = "tab-close"
-    close.append(button)
-    expect(isTabCloseTarget(close)).toBe(true)
-    expect(isTabCloseTarget(button)).toBe(true)
-    expect(isTabCloseTarget(link)).toBe(false)
-  })
-
-  test("forwards component refs", () => {
-    const element = document.createElement("div")
-    let received: HTMLDivElement | undefined
-    forwardTabRef((value) => (received = value), element)
-    expect(received).toBe(element)
-  })
-
-  test("does not reopen rename while a save is pending", () => {
-    expect(canOpenTabRename(false, false, false)).toBe(true)
-    expect(canOpenTabRename(false, false, true)).toBe(false)
-  })
-
-  test("keeps the rendered tab content in the drag preview", () => {
-    const tab = document.createElement("div")
-    tab.innerHTML = '<span data-slot="project-avatar-slot"></span><span data-slot="tab-title">Session</span>'
-    const preview = createTabDragPreview(tab)
-    expect(preview.querySelector('[data-slot="project-avatar-slot"]')).not.toBeNull()
-    expect(preview.querySelector('[data-slot="tab-title"]')?.textContent).toBe("Session")
-  })
-
-  test("captures the grab offset before navigation scrolls the tab", () => {
-    const tab = document.createElement("div")
-    tab.getBoundingClientRect = () => ({ left: 80, top: 10, width: 120 }) as DOMRect
-
-    expect(captureTabPointerDown(tab, 100, 20)).toEqual({
-      startX: 100,
-      startY: 20,
-      grabOffsetX: 20,
-      grabOffsetY: 10,
-      width: 120,
-      element: tab,
-    })
-  })
-
-  test("detects when the primary pointer button was released outside the window", () => {
-    expect(isPrimaryPointerPressed(1)).toBe(true)
-    expect(isPrimaryPointerPressed(3)).toBe(true)
-    expect(isPrimaryPointerPressed(0)).toBe(false)
-    expect(isPrimaryPointerPressed(2)).toBe(false)
-  })
-
-  test("preserves native panning for touch pointers", () => {
-    expect(canStartTabDrag("mouse")).toBe(true)
-    expect(canStartTabDrag("pen")).toBe(true)
-    expect(canStartTabDrag("touch")).toBe(false)
-  })
-})

packages/app/src/components/titlebar-tab-drag.ts

@@ -1,137 +0,0 @@
-export type TabDragLayout = {
-  tabWidthById: Map<string, number>
-  dividerWidth: number
-  listLeft: number
-}
-
-export const ACTIVATION_DISTANCE = 4
-export const HYSTERESIS_DEADBAND = 8
-export const AUTOSCROLL_EDGE = 24
-export const AUTOSCROLL_MAX_SPEED = 8
-export const FLOATER_OVERSHOOT_MAX = 8
-
-export function pointerDistance(x1: number, y1: number, x2: number, y2: number) {
-  const dx = x2 - x1
-  const dy = y2 - y1
-  return Math.sqrt(dx * dx + dy * dy)
-}
-
-export function captureTabDragLayout(list: HTMLElement, order: string[]) {
-  const tabWidthById = new Map<string, number>()
-  const slots = list.querySelectorAll<HTMLElement>("[data-titlebar-tab-slot]")
-  for (const slot of slots) {
-    const id = slot.dataset.tabKey
-    if (!id) continue
-    const tab = slot.matches("[data-titlebar-tab]") ? slot : slot.querySelector<HTMLElement>("[data-titlebar-tab]")
-    if (!tab) continue
-    tabWidthById.set(id, tab.getBoundingClientRect().width)
-  }
-
-  let dividerWidth = 0
-  if (order.length >= 2) {
-    const gap = Number.parseFloat(getComputedStyle(list).columnGap) || 0
-    const secondId = order[1]
-    for (const slot of slots) {
-      if (slot.dataset.tabKey !== secondId) continue
-      const tab = slot.matches("[data-titlebar-tab]") ? slot : slot.querySelector<HTMLElement>("[data-titlebar-tab]")
-      if (!tab) break
-      const style = getComputedStyle(slot)
-      dividerWidth =
-        gap ||
-        slot.getBoundingClientRect().width -
-          tab.getBoundingClientRect().width +
-          (Number.parseFloat(style.marginLeft) || 0) +
-          (Number.parseFloat(style.marginRight) || 0)
-      break
-    }
-  }
-
-  return {
-    tabWidthById,
-    dividerWidth,
-    listLeft: list.getBoundingClientRect().left,
-  }
-}
-
-export function syncLayoutScroll(list: HTMLElement, layout: TabDragLayout) {
-  layout.listLeft = list.getBoundingClientRect().left
-}
-
-function slotWidthAt(order: readonly string[], index: number, layout: TabDragLayout) {
-  const id = order[index]
-  if (!id) return 0
-  const tabWidth = layout.tabWidthById.get(id) ?? 0
-  return index === 0 ? tabWidth : layout.dividerWidth + tabWidth
-}
-
-function slotLeft(order: readonly string[], index: number, layout: TabDragLayout) {
-  let left = layout.listLeft
-  for (let i = 0; i < index; i++) {
-    left += slotWidthAt(order, i, layout)
-  }
-  return left
-}
-
-export function insertIndexFromVirtualLayout(
-  pointerX: number,
-  order: readonly string[],
-  draggedId: string,
-  currentIndex: number,
-  layout: TabDragLayout,
-  deadband = HYSTERESIS_DEADBAND,
-) {
-  if (order.length === 0) return 0
-
-  const others = order.filter((id) => id !== draggedId)
-  let target = currentIndex
-
-  while (target > 0 && pointerX < slotLeft(others, target, layout) - deadband) target--
-  while (target < order.length - 1 && pointerX >= slotLeft(others, target + 1, layout)) target++
-
-  return target
-}
-
-export function movePlaceholder(order: readonly string[], draggedId: string, toIndex: number) {
-  const fromIndex = order.indexOf(draggedId)
-  if (fromIndex === -1 || fromIndex === toIndex) return [...order]
-  const next = [...order]
-  next.splice(toIndex, 0, ...next.splice(fromIndex, 1))
-  return next
-}
-
-export function draftOrderChanged(initial: readonly string[], final: readonly string[]) {
-  if (initial.length === 0 || final.length === 0 || initial.length !== final.length) return false
-  return final.some((key, index) => key !== initial[index])
-}
-
-function easeOvershoot(overshoot: number) {
-  return (FLOATER_OVERSHOOT_MAX * overshoot) / (overshoot + FLOATER_OVERSHOOT_MAX)
-}
-
-export function clampFloaterLeft(left: number, width: number, stripLeft: number, stripRight: number) {
-  const stripWidth = stripRight - stripLeft
-  if (width >= stripWidth) return stripLeft
-
-  const maxLeft = stripRight - width
-  if (left > maxLeft) return maxLeft + easeOvershoot(left - maxLeft)
-  if (left < stripLeft) return stripLeft - easeOvershoot(stripLeft - left)
-
-  return left
-}
-
-export function autoscrollSpeed(pointerX: number, containerLeft: number, containerRight: number) {
-  const leftEdge = containerLeft + AUTOSCROLL_EDGE
-  const rightEdge = containerRight - AUTOSCROLL_EDGE
-
-  if (pointerX < leftEdge) {
-    const depth = (leftEdge - pointerX) / AUTOSCROLL_EDGE
-    return -Math.ceil(AUTOSCROLL_MAX_SPEED * Math.min(depth, 1))
-  }
-
-  if (pointerX > rightEdge) {
-    const depth = (pointerX - rightEdge) / AUTOSCROLL_EDGE
-    return Math.ceil(AUTOSCROLL_MAX_SPEED * Math.min(depth, 1))
-  }
-
-  return 0
-}

packages/app/src/components/titlebar-tab-gesture.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, test } from "bun:test"
+import { canOpenTabRename, canStartTabDrag, forwardTabRef, isTabCloseTarget } from "./titlebar-tab-gesture"
+
+describe("titlebar tab gestures", () => {
+  test("excludes close controls from tab gestures", () => {
+    const close = document.createElement("div")
+    const button = document.createElement("button")
+    const link = document.createElement("a")
+    close.dataset.slot = "tab-close"
+    close.append(button)
+    expect(isTabCloseTarget(close)).toBe(true)
+    expect(isTabCloseTarget(button)).toBe(true)
+    expect(isTabCloseTarget(link)).toBe(false)
+  })
+
+  test("forwards component refs", () => {
+    const element = document.createElement("div")
+    let received: HTMLDivElement | undefined
+    forwardTabRef((value) => (received = value), element)
+    expect(received).toBe(element)
+  })
+
+  test("does not reopen rename while a save is pending", () => {
+    expect(canOpenTabRename(false, false, false)).toBe(true)
+    expect(canOpenTabRename(false, false, true)).toBe(false)
+  })
+
+  test("preserves native panning for touch pointers", () => {
+    expect(canStartTabDrag("mouse")).toBe(true)
+    expect(canStartTabDrag("pen")).toBe(true)
+    expect(canStartTabDrag("touch")).toBe(false)
+  })
+})

packages/app/src/components/titlebar-tab-gesture.ts

@@ -8,22 +8,6 @@ export function canStartTabDrag(pointerType: string) {
   return pointerType !== "touch"
 }
 
-export function isPrimaryPointerPressed(buttons: number) {
-  return (buttons & 1) !== 0
-}
-
-export function captureTabPointerDown(element: HTMLDivElement, clientX: number, clientY: number) {
-  const rect = element.getBoundingClientRect()
-  return {
-    startX: clientX,
-    startY: clientY,
-    grabOffsetX: clientX - rect.left,
-    grabOffsetY: clientY - rect.top,
-    width: rect.width,
-    element,
-  }
-}
-
 export function forwardTabRef(ref: Ref<HTMLDivElement> | undefined, element: HTMLDivElement) {
   if (typeof ref === "function") ref(element)
 }
@@ -31,7 +15,3 @@ export function forwardTabRef(ref: Ref<HTMLDivElement> | undefined, element: HTM
 export function canOpenTabRename(dragging: boolean | undefined, editing: boolean, committing: boolean) {
   return !dragging && !editing && !committing
 }
-
-export function createTabDragPreview(element: HTMLDivElement) {
-  return element.cloneNode(true) as HTMLDivElement
-}

packages/app/src/components/titlebar-tab-nav.css

@@ -9,6 +9,10 @@
   justify-content: center;
 }
 
+[data-titlebar-tab][data-editing="true"] [data-slot="tab-close"] {
+  display: none;
+}
+
 [data-titlebar-tab-list] {
   gap: 13.5px;
 }

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

@@ -29,9 +29,6 @@ export function TabNavItem(props: {
   dragging?: boolean
   pressed?: boolean
   hidden?: boolean
-  tabKey: string
-  dragActive: boolean
-  onPointerDown: (event: PointerEvent) => void
 }) {
   const language = useLanguage()
   const [editing, setEditing] = createSignal(false)
@@ -173,112 +170,105 @@ export function TabNavItem(props: {
 
   return (
     <div
-      data-titlebar-tab-slot
-      data-tab-key={props.tabKey}
-      class="relative flex w-56 min-w-7 max-w-56 flex-shrink"
-      classList={{ invisible: props.hidden, "pointer-events-none": props.dragActive }}
-      onPointerDown={props.onPointerDown}
+      ref={(el) => {
+        tabRoot = el
+        forwardTabRef(props.ref, el)
+      }}
+      data-titlebar-tab
+      data-slot="titlebar-tab-item"
+      data-title-overflow={titleOverflowing()}
+      data-editing={editing()}
+      class="group relative flex h-7 w-full min-w-0 select-none flex-row items-center gap-1.5 overflow-hidden whitespace-nowrap rounded-[6px] bg-[var(--tab-bg)] px-1.5 [container-type:inline-size] [--tab-bg:var(--v2-background-bg-deep)] hover:[--tab-bg:var(--v2-background-bg-layer-02)] has-[>a:focus-visible]:[--tab-bg:var(--v2-background-bg-layer-02)] data-[active='true']:[--tab-bg:var(--v2-background-bg-layer-02)] data-[dragging='true']:[--tab-bg:var(--v2-background-bg-layer-02)] data-[pressed='true']:[--tab-bg:var(--v2-background-bg-layer-02)] data-[editing='true']:[--tab-bg:var(--v2-background-bg-layer-02)]"
+      classList={{ invisible: props.hidden }}
+      data-active={props.active}
+      data-dragging={props.dragging}
+      data-pressed={props.pressed}
+      onMouseDown={(event) => {
+        if (event.button !== 1) return
+        closeTab(event)
+      }}
     >
-      <div
-        ref={(el) => {
-          tabRoot = el
-          forwardTabRef(props.ref, el)
-        }}
-        data-titlebar-tab
-        data-slot="titlebar-tab-item"
-        data-title-overflow={titleOverflowing()}
-        data-editing={editing()}
-        class="group relative flex h-7 w-full min-w-0 select-none flex-row items-center gap-1.5 overflow-hidden whitespace-nowrap rounded-[6px] bg-[var(--tab-bg)] px-1.5 [container-type:inline-size] [--tab-bg:var(--v2-background-bg-deep)] hover:[--tab-bg:var(--v2-background-bg-layer-02)] has-[>a:focus-visible]:[--tab-bg:var(--v2-background-bg-layer-02)] data-[active='true']:[--tab-bg:var(--v2-background-bg-layer-02)] data-[dragging='true']:[--tab-bg:var(--v2-background-bg-layer-02)] data-[pressed='true']:[--tab-bg:var(--v2-background-bg-layer-02)] data-[editing='true']:[--tab-bg:var(--v2-background-bg-layer-02)]"
-        data-active={props.active}
-        data-dragging={props.dragging}
-        data-pressed={props.pressed}
-        onMouseDown={(event) => {
-          if (event.button !== 1) return
-          closeTab(event)
-        }}
-      >
-        <Show when={props.session()}>
-          {(session) => {
-            return (
-              <a
-                data-slot="tab-link"
-                data-titlebar-tab-link
-                href={props.href}
-                draggable={false}
-                onDragStart={(event) => {
+      <Show when={props.session()}>
+        {(session) => {
+          return (
+            <a
+              data-slot="tab-link"
+              data-titlebar-tab-link
+              href={props.href}
+              draggable={false}
+              onDragStart={(event) => {
+                event.preventDefault()
+                event.stopPropagation()
+              }}
+              onClick={(event) => {
+                event.preventDefault()
+                if (editing()) return
+                if (props.suppressNavigation?.()) return
+                props.onNavigate()
+              }}
+              class="flex h-full min-w-0 flex-1 flex-row items-center gap-1.5 text-[13px] font-medium text-v2-text-text-faint group-data-[active='true']:text-v2-text-text-base group-data-[editing='true']:text-v2-text-text-base [-webkit-user-drag:none]"
+            >
+              <span data-slot="project-avatar-slot">
+                <SessionTabAvatar
+                  project={project()}
+                  directory={session().directory}
+                  sessionId={session().id}
+                  activeServer={props.activeServer}
+                />
+              </span>
+              <span
+                ref={(el) => {
+                  titleEl = el
+                  titleEl.textContent = session().title
+                }}
+                data-slot="tab-title"
+                data-titlebar-tab-title
+                class="min-w-0 flex-1 outline-none leading-4"
+                classList={{
+                  "overflow-hidden text-clip whitespace-nowrap": !editing(),
+                  "select-text": editing(),
+                }}
+                contenteditable={editing() ? true : undefined}
+                onDblClick={openRename}
+                onKeyDown={(event) => {
+                  event.stopPropagation()
+                  if (event.key === "Enter") {
+                    event.preventDefault()
+                    void closeRename(true)
+                    return
+                  }
+                  if (event.key !== "Escape") return
                   event.preventDefault()
+                  titleEl.textContent = session().title
+                  void closeRename(false)
+                }}
+                onBlur={() => void closeRename(true)}
+                onPointerDown={(event) => {
+                  if (!editing()) return
                   event.stopPropagation()
                 }}
                 onClick={(event) => {
+                  if (!editing()) return
                   event.preventDefault()
-                  if (editing()) return
-                  if (props.suppressNavigation?.()) return
-                  props.onNavigate()
                 }}
-                class="flex h-full min-w-0 flex-1 flex-row items-center gap-1.5 text-[13px] font-medium text-v2-text-text-faint group-data-[active='true']:text-v2-text-text-base group-data-[editing='true']:text-v2-text-text-base [-webkit-user-drag:none]"
-              >
-                <span data-slot="project-avatar-slot">
-                  <SessionTabAvatar
-                    project={project()}
-                    directory={session().directory}
-                    sessionId={session().id}
-                    activeServer={props.activeServer}
-                  />
-                </span>
-                <span
-                  ref={(el) => {
-                    titleEl = el
-                    titleEl.textContent = session().title
-                  }}
-                  data-slot="tab-title"
-                  data-titlebar-tab-title
-                  class="min-w-0 flex-1 outline-none leading-4"
-                  classList={{
-                    "overflow-hidden text-clip whitespace-nowrap": !editing(),
-                    "select-text": editing(),
-                  }}
-                  contenteditable={editing() ? true : undefined}
-                  onDblClick={openRename}
-                  onKeyDown={(event) => {
-                    event.stopPropagation()
-                    if (event.key === "Enter") {
-                      event.preventDefault()
-                      void closeRename(true)
-                      return
-                    }
-                    if (event.key !== "Escape") return
-                    event.preventDefault()
-                    titleEl.textContent = session().title
-                    void closeRename(false)
-                  }}
-                  onBlur={() => void closeRename(true)}
-                  onPointerDown={(event) => {
-                    if (!editing()) return
-                    event.stopPropagation()
-                  }}
-                  onClick={(event) => {
-                    if (!editing()) return
-                    event.preventDefault()
-                  }}
-                />
-              </a>
-            )
-          }}
-        </Show>
+              />
+            </a>
+          )
+        }}
+      </Show>
 
-        <div data-slot="tab-close" class="group-hover:bg-[var(--tab-bg)] group-data-[active=true]:bg-[var(--tab-bg)]">
-          <IconButtonV2
-            size="small"
-            variant="ghost-muted"
-            class="hover-reveal relative z-10 group-hover:opacity-100 group-data-[active=true]:opacity-100 group-data-[editing=true]:opacity-100"
-            onPointerDown={(event) => {
-              event.preventDefault()
-              event.stopPropagation()
-            }}
-            onClick={closeTab}
-            icon={<IconV2 name="xmark-small" />}
-          />
-        </div>
+      <div data-slot="tab-close" class="group-hover:bg-[var(--tab-bg)] group-data-[active=true]:bg-[var(--tab-bg)]">
+        <IconButtonV2
+          size="small"
+          variant="ghost-muted"
+          class="hover-reveal relative z-10 group-hover:opacity-100 group-data-[active=true]:opacity-100 group-data-[editing=true]:opacity-100"
+          onPointerDown={(event) => {
+            event.preventDefault()
+            event.stopPropagation()
+          }}
+          onClick={closeTab}
+          icon={<IconV2 name="xmark-small" />}
+        />
       </div>
     </div>
   )
@@ -295,9 +285,6 @@ export function DraftTabItem(props: {
   dragging?: boolean
   pressed?: boolean
   hidden?: boolean
-  tabKey: string
-  dragActive: boolean
-  onPointerDown: (event: PointerEvent) => void
 }) {
   const closeTab = (event: MouseEvent) => {
     event.preventDefault()
@@ -306,69 +293,62 @@ export function DraftTabItem(props: {
   }
   return (
     <div
-      data-titlebar-tab-slot
-      data-tab-key={props.tabKey}
-      class="relative flex w-56 min-w-7 max-w-56 flex-shrink"
-      classList={{ invisible: props.hidden, "pointer-events-none": props.dragActive }}
-      onPointerDown={props.onPointerDown}
+      ref={(el) => forwardTabRef(props.ref, el)}
+      data-titlebar-tab
+      data-slot="titlebar-tab-item"
+      data-active={props.active}
+      data-dragging={props.dragging}
+      data-pressed={props.pressed}
+      class="group relative flex h-7 w-full min-w-0 flex-row items-center gap-1.5 overflow-hidden rounded-[6px] bg-[var(--tab-bg)] px-1.5 [container-type:inline-size] whitespace-nowrap [--tab-bg:var(--v2-background-bg-deep)] hover:[--tab-bg:var(--v2-background-bg-layer-02)] has-[>a:focus-visible]:[--tab-bg:var(--v2-background-bg-layer-02)] data-[active='true']:[--tab-bg:var(--v2-background-bg-layer-02)] data-[dragging='true']:[--tab-bg:var(--v2-background-bg-layer-02)] data-[pressed='true']:[--tab-bg:var(--v2-background-bg-layer-02)] data-[editing='true']:[--tab-bg:var(--v2-background-bg-layer-02)]"
+      classList={{ invisible: props.hidden }}
+      onMouseDown={(event) => {
+        if (event.button !== 1) return
+        closeTab(event)
+      }}
     >
-      <div
-        ref={(el) => forwardTabRef(props.ref, el)}
-        data-titlebar-tab
-        data-slot="titlebar-tab-item"
-        data-active={props.active}
-        data-dragging={props.dragging}
-        data-pressed={props.pressed}
-        class="group relative flex h-7 w-full min-w-0 select-none flex-row items-center gap-1.5 overflow-hidden whitespace-nowrap rounded-[6px] bg-[var(--tab-bg)] px-1.5 [container-type:inline-size] [--tab-bg:var(--v2-background-bg-deep)] hover:[--tab-bg:var(--v2-background-bg-layer-02)] has-[>a:focus-visible]:[--tab-bg:var(--v2-background-bg-layer-02)] data-[active='true']:[--tab-bg:var(--v2-background-bg-layer-02)] data-[dragging='true']:[--tab-bg:var(--v2-background-bg-layer-02)] data-[pressed='true']:[--tab-bg:var(--v2-background-bg-layer-02)]"
-        onMouseDown={(event) => {
-          if (event.button !== 1) return
-          closeTab(event)
+      <a
+        data-slot="tab-link"
+        data-titlebar-tab-link
+        href={props.href}
+        draggable={false}
+        onDragStart={(event) => {
+          event.preventDefault()
+          event.stopPropagation()
         }}
+        onClick={(event) => {
+          event.preventDefault()
+          if (props.suppressNavigation?.()) return
+          props.onNavigate()
+        }}
+        class="flex h-full min-w-0 flex-1 flex-row items-center gap-1.5 text-[13px] font-medium text-v2-text-text-faint group-data-[active='true']:text-v2-text-text-base [-webkit-user-drag:none]"
       >
-        <a
-          data-slot="tab-link"
-          data-titlebar-tab-link
-          href={props.href}
-          draggable={false}
-          onDragStart={(event) => {
+        <span class="flex size-4 shrink-0 items-center justify-center">
+          <IconV2 name="edit" />
+        </span>
+        <span
+          data-titlebar-tab-title
+          class="min-w-0 flex-1 overflow-hidden text-clip whitespace-nowrap outline-none leading-4"
+        >
+          {props.title}
+        </span>
+      </a>
+      <div data-slot="tab-close" class="group-hover:bg-[var(--tab-bg)] group-data-[active=true]:bg-[var(--tab-bg)]">
+        <IconButtonV2
+          size="small"
+          variant="ghost-muted"
+          onPointerDown={(event) => {
             event.preventDefault()
             event.stopPropagation()
           }}
-          onClick={(event) => {
+          onMouseDown={(event) => {
             event.preventDefault()
-            if (props.suppressNavigation?.()) return
-            props.onNavigate()
+            event.stopPropagation()
           }}
-          class="flex h-full min-w-0 flex-1 flex-row items-center gap-1.5 text-[13px] font-medium text-v2-text-text-faint group-data-[active='true']:text-v2-text-text-base [-webkit-user-drag:none]"
-        >
-          <span class="flex size-4 shrink-0 items-center justify-center">
-            <IconV2 name="edit" />
-          </span>
-          <span
-            data-titlebar-tab-title
-            class="min-w-0 flex-1 overflow-hidden text-clip whitespace-nowrap outline-none leading-4"
-          >
-            {props.title}
-          </span>
-        </a>
-        <div data-slot="tab-close" class="group-hover:bg-[var(--tab-bg)] group-data-[active=true]:bg-[var(--tab-bg)]">
-          <IconButtonV2
-            size="small"
-            variant="ghost-muted"
-            onPointerDown={(event) => {
-              event.preventDefault()
-              event.stopPropagation()
-            }}
-            onMouseDown={(event) => {
-              event.preventDefault()
-              event.stopPropagation()
-            }}
-            class="hover-reveal relative z-10 group-hover:opacity-100 group-data-[active=true]:opacity-100 group-data-[editing=true]:opacity-100"
-            onClick={closeTab}
-            icon={<IconV2 name="xmark-small" />}
-            aria-label="Close tab"
-          />
-        </div>
+          class="hover-reveal relative z-10 group-hover:opacity-100 group-data-[active=true]:opacity-100 group-data-[editing=true]:opacity-100"
+          onClick={closeTab}
+          icon={<IconV2 name="xmark-small" />}
+          aria-label="Close tab"
+        />
       </div>
     </div>
   )

packages/app/src/components/titlebar-tab-strip.tsx

@@ -1,18 +1,11 @@
-import {
-  createEffect,
-  createMemo,
-  createResource,
-  createRoot,
-  createSignal,
-  For,
-  onCleanup,
-  onMount,
-  Show,
-} from "solid-js"
-import { Portal } from "solid-js/web"
-import { createStore } from "solid-js/store"
-import { makeEventListener } from "@solid-primitives/event-listener"
+import { createEffect, createMemo, createResource, createRoot, For, onCleanup, onMount } from "solid-js"
 import { createResizeObserver } from "@solid-primitives/resize-observer"
+import { DragDropProvider, PointerSensor } from "@dnd-kit/solid"
+import { isSortable, useSortable } from "@dnd-kit/solid/sortable"
+import { Accessibility, AutoScroller, Feedback, PointerActivationConstraints } from "@dnd-kit/dom"
+import { RestrictToHorizontalAxis } from "@dnd-kit/abstract/modifiers"
+import { RestrictToElement } from "@dnd-kit/dom/modifiers"
+import { arrayMove } from "@dnd-kit/helpers"
 import { tabHref, tabKey, type SessionTab, type Tab } from "@/context/tabs"
 import { ServerConnection } from "@/context/server"
 import { DraftTabItem, TabNavItem } from "@/components/titlebar-tab-nav"
@@ -22,42 +15,30 @@ import { useCommand } from "@/context/command"
 import { useTabs } from "@/context/tabs"
 import { createTabPromptState } from "@/context/prompt"
 import { base64Encode } from "@opencode-ai/core/util/encode"
-import {
-  captureTabPointerDown,
-  canStartTabDrag,
-  createTabDragPreview,
-  isPrimaryPointerPressed,
-  isTabCloseTarget,
-} from "./titlebar-tab-gesture"
-import {
-  ACTIVATION_DISTANCE,
-  autoscrollSpeed,
-  captureTabDragLayout,
-  clampFloaterLeft,
-  draftOrderChanged,
-  insertIndexFromVirtualLayout,
-  movePlaceholder,
-  pointerDistance,
-  syncLayoutScroll,
-  type TabDragLayout,
-} from "@/components/titlebar-tab-drag"
+import { canStartTabDrag, isTabCloseTarget } from "./titlebar-tab-gesture"
+
+const sortableTransition = { duration: 0 }
 
 function SessionTabSlot(props: {
   tab: SessionTab
   id: string
+  index: () => number
   active: () => boolean
   activeServerKey: ServerConnection.Key
   forceTruncate: boolean
-  dragActive: boolean
-  dragged: () => boolean
-  pressed: () => boolean
   serverCtx: () => ServerCtx | undefined
-  suppressNavigation: () => boolean
-  onPointerDown: (event: PointerEvent) => void
   onNavigate: (element: HTMLDivElement) => void
   onClose: () => void
 }) {
   const tabs = useTabs()
+  const sortable = useSortable({
+    get id() {
+      return props.id
+    },
+    get index() {
+      return props.index()
+    },
+  })
   let ref!: HTMLDivElement
   const sdk = createMemo(() => props.serverCtx()?.sdk ?? null)
   const cachedSession = createMemo(() => props.serverCtx()?.sync.session.peek(props.tab.sessionId))
@@ -100,33 +81,79 @@ function SessionTabSlot(props: {
   })
 
   return (
-    <TabNavItem
-      tabKey={props.id}
-      dragActive={props.dragActive}
-      onPointerDown={props.onPointerDown}
-      ref={ref}
-      href={tabHref(props.tab)}
-      server={props.tab.server}
-      session={session}
-      onTitleChange={(title) => {
-        const value = session()
-        const ctx = props.serverCtx()
-        if (value && ctx) ctx.sync.session.remember({ ...value, title })
-      }}
-      onTitleChangeFailed={(title) => {
-        const value = session()
-        const ctx = props.serverCtx()
-        if (value && ctx) ctx.sync.session.remember({ ...value, title })
-      }}
-      onNavigate={() => props.onNavigate(ref)}
-      onClose={props.onClose}
-      active={props.active()}
-      activeServer={props.tab.server === props.activeServerKey}
-      forceTruncate={props.forceTruncate}
-      suppressNavigation={props.suppressNavigation}
-      pressed={props.pressed()}
-      hidden={props.dragged() || !session()}
-    />
+    <div
+      ref={sortable.ref}
+      data-titlebar-tab-slot
+      data-tab-key={props.id}
+      class="relative flex w-56 min-w-7 max-w-56 flex-shrink"
+      classList={{ hidden: !session() }}
+    >
+      <TabNavItem
+        ref={(el) => {
+          ref = el
+        }}
+        href={tabHref(props.tab)}
+        server={props.tab.server}
+        session={session}
+        onTitleChange={(title) => {
+          const value = session()
+          const ctx = props.serverCtx()
+          if (value && ctx) ctx.sync.session.remember({ ...value, title })
+        }}
+        onTitleChangeFailed={(title) => {
+          const value = session()
+          const ctx = props.serverCtx()
+          if (value && ctx) ctx.sync.session.remember({ ...value, title })
+        }}
+        onNavigate={() => props.onNavigate(ref)}
+        onClose={props.onClose}
+        active={props.active()}
+        activeServer={props.tab.server === props.activeServerKey}
+        forceTruncate={props.forceTruncate}
+        dragging={sortable.isDragSource()}
+      />
+    </div>
+  )
+}
+
+function DraftTabSlot(props: {
+  tab: Extract<Tab, { type: "draft" }>
+  id: string
+  index: () => number
+  active: () => boolean
+  title: string
+  onNavigate: (element: HTMLDivElement) => void
+  onClose: () => void
+}) {
+  const sortable = useSortable({
+    get id() {
+      return props.id
+    },
+    get index() {
+      return props.index()
+    },
+  })
+  let ref!: HTMLDivElement
+
+  return (
+    <div
+      ref={sortable.ref}
+      data-titlebar-tab-slot
+      data-tab-key={props.id}
+      class="relative flex w-56 min-w-7 max-w-56 flex-shrink"
+    >
+      <DraftTabItem
+        ref={(el) => {
+          ref = el
+        }}
+        href={tabHref(props.tab)}
+        title={props.title}
+        onNavigate={() => props.onNavigate(ref)}
+        onClose={props.onClose}
+        active={props.active()}
+        dragging={sortable.isDragSource()}
+      />
+    </div>
   )
 }
 
@@ -142,52 +169,12 @@ export function TitlebarTabStrip(props: {
 }) {
   const global = useGlobal()
   const language = useLanguage()
-  const [drag, setDrag] = createStore({
-    active: false,
-    draggedId: undefined as string | undefined,
-    placeholderIndex: 0,
-    draftOrder: [] as string[],
-    initialOrder: [] as string[],
-    draggedWidth: 0,
-    pointerX: 0,
-    grabOffsetX: 0,
-    floaterTop: 0,
-  })
-
-  const [gesture, setGesture] = createStore({
-    pending: undefined as
-      | {
-          id: string
-          startX: number
-          startY: number
-          grabOffsetX: number
-          grabOffsetY: number
-          pointerId: number
-          width: number
-          element: HTMLDivElement
-        }
-      | undefined,
-  })
-
-  const [suppressNavigation, setSuppressNavigation] = createSignal(false)
-  const [pressedId, setPressedId] = createSignal<string | undefined>()
-  const [stripScrollLeft, setStripScrollLeft] = createSignal(0)
   let scrollRef!: HTMLDivElement
   let listRef!: HTMLDivElement
-  let dragLayout: TabDragLayout | undefined
-  let dragPointerId: number | undefined
-  let autoscrollFrame: number | undefined
   let resizeFrame: number | undefined
-  let dragPreview: HTMLDivElement | undefined
 
   const tabIds = () => props.tabs.map(tabKey)
 
-  const displayTabs = createMemo(() => {
-    if (!drag.active || drag.draftOrder.length === 0) return props.tabs
-    const byKey = new Map(props.tabs.map((tab) => [tabKey(tab), tab]))
-    return drag.draftOrder.map((key) => byKey.get(key)).filter((tab): tab is Tab => !!tab)
-  })
-
   function refreshOverflow() {
     if (!scrollRef) return
     props.onOverflowChange(scrollRef.scrollWidth > scrollRef.clientWidth)
@@ -200,220 +187,14 @@ export function TitlebarTabStrip(props: {
       resizeFrame = requestAnimationFrame(() => {
         resizeFrame = undefined
         refreshOverflow()
-        if (!drag.active || !listRef) return
-        dragLayout = captureTabDragLayout(listRef, drag.draftOrder)
-        updateInsertIndex()
       })
     },
   )
 
-  function syncScroll() {
-    if (!scrollRef || !listRef || !dragLayout) return
-    syncLayoutScroll(listRef, dragLayout)
-    setStripScrollLeft(scrollRef.scrollLeft)
-    updateInsertIndex()
-  }
-
-  function stopAutoscroll() {
-    if (autoscrollFrame === undefined) return
-    cancelAnimationFrame(autoscrollFrame)
-    autoscrollFrame = undefined
-  }
-
-  function tickAutoscroll() {
-    if (!drag.active || !scrollRef) return
-
-    const strip = scrollRef.getBoundingClientRect()
-    const speed = autoscrollSpeed(drag.pointerX, strip.left, strip.right)
-
-    if (speed !== 0) {
-      scrollRef.scrollLeft += speed
-      syncScroll()
-    }
-
-    autoscrollFrame = requestAnimationFrame(tickAutoscroll)
-  }
-
-  function startAutoscroll() {
-    stopAutoscroll()
-    autoscrollFrame = requestAnimationFrame(tickAutoscroll)
-  }
-
-  function applyPlaceholderIndex(nextIndex: number) {
-    const id = drag.draggedId
-    if (!id) return
-    const next = movePlaceholder(drag.draftOrder, id, nextIndex)
-    setDrag({
-      draftOrder: next,
-      placeholderIndex: nextIndex,
-    })
-  }
-
-  function updateInsertIndex() {
-    if (!drag.active || !dragLayout) return
-    const draggedId = drag.draggedId
-    if (!draggedId) return
-    const nextIndex = insertIndexFromVirtualLayout(
-      drag.pointerX,
-      drag.draftOrder,
-      draggedId,
-      drag.placeholderIndex,
-      dragLayout,
-    )
-    if (nextIndex === drag.placeholderIndex) return
-    applyPlaceholderIndex(nextIndex)
-  }
-
-  function startDrag(id: string) {
-    const order = tabIds()
-    const index = order.indexOf(id)
-    const pending = gesture.pending
-    if (index === -1 || !pending || !listRef || !scrollRef) return
-
-    dragLayout = captureTabDragLayout(listRef, order)
-    dragPreview = createTabDragPreview(pending.element)
-    dragPointerId = pending.pointerId
-    setGesture("pending", undefined)
-
-    setDrag({
-      active: true,
-      draggedId: id,
-      placeholderIndex: index,
-      draftOrder: order,
-      initialOrder: order,
-      draggedWidth: pending.width,
-      pointerX: pending.startX,
-      grabOffsetX: pending.grabOffsetX,
-      floaterTop: pending.startY - pending.grabOffsetY,
-    })
-    setPressedId(undefined)
-    setStripScrollLeft(scrollRef.scrollLeft)
-    startAutoscroll()
-  }
-
-  function endDrag(commit: boolean) {
-    const initial = drag.initialOrder
-    const final = drag.draftOrder
-    const moved = drag.active
-
-    if (commit && moved && draftOrderChanged(initial, final)) {
-      props.onReorder(final)
-    }
-
-    if (moved) setSuppressNavigation(true)
-
-    setDrag({
-      active: false,
-      draggedId: undefined,
-      placeholderIndex: 0,
-      draftOrder: [],
-      initialOrder: [],
-      draggedWidth: 0,
-      pointerX: 0,
-      grabOffsetX: 0,
-      floaterTop: 0,
-    })
-
-    dragLayout = undefined
-    dragPreview = undefined
-    dragPointerId = undefined
-    setGesture("pending", undefined)
-    setPressedId(undefined)
-    stopAutoscroll()
-    refreshOverflow()
-    requestAnimationFrame(() => setSuppressNavigation(false))
-  }
-
-  function onPointerDown(id: string, event: PointerEvent) {
-    if (event.button !== 0 || drag.active) return
-    if (!canStartTabDrag(event.pointerType)) return
-    if (isTabCloseTarget(event.target)) return
-    const target = event.currentTarget as HTMLDivElement
-    const tabEl = target.matches("[data-titlebar-tab]")
-      ? target
-      : target.querySelector<HTMLDivElement>("[data-titlebar-tab]")
-    if (!tabEl) return
-    if (!tabEl.querySelector('[data-slot="tab-link"]')) return
-    const tab = props.tabs.find((item) => tabKey(item) === id)
-    if (!tab) return
-    const pointer = captureTabPointerDown(tabEl, event.clientX, event.clientY)
-    setSuppressNavigation(true)
-    props.onNavigate(tab, tabEl)
-    setPressedId(id)
-    setGesture("pending", {
-      id,
-      pointerId: event.pointerId,
-      ...pointer,
-    })
-  }
-
-  function onPointerMove(event: PointerEvent) {
-    const pending = gesture.pending
-    if (pending && event.pointerId !== pending.pointerId) return
-    if (drag.active && dragPointerId !== undefined && event.pointerId !== dragPointerId) return
-    if (!isPrimaryPointerPressed(event.buttons)) {
-      if (drag.active) endDrag(true)
-      if (pending) {
-        setGesture("pending", undefined)
-        setPressedId(undefined)
-        requestAnimationFrame(() => setSuppressNavigation(false))
-      }
-      return
-    }
-
-    if (pending && !drag.active) {
-      if (pointerDistance(pending.startX, pending.startY, event.clientX, event.clientY) < ACTIVATION_DISTANCE) return
-      startDrag(pending.id)
-    }
-
-    if (!drag.active) return
-
-    setDrag("pointerX", event.clientX)
-    syncScroll()
-  }
-
-  function onPointerUp(event: PointerEvent) {
-    if (drag.active) {
-      if (dragPointerId !== undefined && event.pointerId !== dragPointerId) return
-      setDrag("pointerX", event.clientX)
-      syncScroll()
-      endDrag(true)
-      return
-    }
-
-    const pending = gesture.pending
-    if (pending && event.pointerId !== pending.pointerId) return
-
-    setGesture("pending", undefined)
-    setPressedId(undefined)
-    requestAnimationFrame(() => setSuppressNavigation(false))
-  }
-
-  function onPointerCancel(event: PointerEvent) {
-    if (drag.active) {
-      if (dragPointerId !== undefined && event.pointerId !== dragPointerId) return
-      endDrag(false)
-      return
-    }
-
-    if (!gesture.pending) return
-    if (gesture.pending.pointerId !== event.pointerId) return
-    setGesture("pending", undefined)
-    setPressedId(undefined)
-    requestAnimationFrame(() => setSuppressNavigation(false))
-  }
-
   onMount(() => {
-    const cleanups = [
-      makeEventListener(window, "pointermove", onPointerMove),
-      makeEventListener(window, "pointerup", onPointerUp),
-      makeEventListener(window, "pointercancel", onPointerCancel),
-    ]
     refreshOverflow()
-    onCleanup(() => cleanups.forEach((cleanup) => cleanup()))
   })
 
-  onCleanup(stopAutoscroll)
   onCleanup(() => {
     if (resizeFrame !== undefined) cancelAnimationFrame(resizeFrame)
   })
@@ -424,50 +205,54 @@ export function TitlebarTabStrip(props: {
     refreshOverflow()
   })
 
-  createEffect(() => {
-    if (!drag.active || !scrollRef) return
-    onCleanup(makeEventListener(scrollRef, "scroll", syncScroll))
-  })
-
-  const floaterStyle = () => {
-    stripScrollLeft()
-    const strip = scrollRef?.getBoundingClientRect()
-    const left = strip
-      ? clampFloaterLeft(drag.pointerX - drag.grabOffsetX, drag.draggedWidth, strip.left, strip.right)
-      : drag.pointerX - drag.grabOffsetX
-
-    return {
-      position: "fixed" as const,
-      top: `${drag.floaterTop}px`,
-      left: `${left}px`,
-      width: `${drag.draggedWidth}px`,
-      "z-index": "10000",
-      "pointer-events": "none" as const,
-    }
-  }
-
-  const draggedTab = createMemo(() => {
-    const id = drag.draggedId
-    if (!id) return
-    return props.tabs.find((tab) => tabKey(tab) === id)
-  })
-
   return (
-    <>
-      <div data-slot="titlebar-tabs" class="relative min-w-0">
-        <div
-          data-slot="titlebar-tabs-scroll"
-          class="flex min-w-0 flex-row items-center gap-1.5 overflow-x-auto no-scrollbar [app-region:no-drag]"
-          ref={scrollRef}
+    <div data-slot="titlebar-tabs" class="relative min-w-0">
+      <div
+        data-slot="titlebar-tabs-scroll"
+        class="flex min-w-0 flex-row items-center gap-1.5 overflow-x-auto no-scrollbar [app-region:no-drag]"
+        ref={scrollRef}
+      >
+        <DragDropProvider
+          sensors={[
+            PointerSensor.configure({
+              activationConstraints: [new PointerActivationConstraints.Distance({ value: 4 })],
+              preventActivation: (event) =>
+                !canStartTabDrag(event.pointerType) ||
+                isTabCloseTarget(event.target) ||
+                (event.target instanceof Element && !!event.target.closest('[contenteditable="true"]')),
+            }),
+          ]}
+          modifiers={[RestrictToHorizontalAxis, RestrictToElement.configure({ element: () => listRef })]}
+          plugins={(defaults) => [
+            ...defaults.filter((plugin) => plugin !== Accessibility),
+            AutoScroller.configure({ acceleration: 8, threshold: { x: 0.05, y: 0 } }),
+            Feedback.configure({ dropAnimation: null }),
+          ]}
+          onDragStart={(event) => {
+            const source = event.operation.source
+            if (!source) return
+            const tab = props.tabs.find((item) => tabKey(item) === source.id.toString())
+            if (!tab) return
+            const tabEl = source.element?.querySelector<HTMLDivElement>("[data-titlebar-tab]")
+            props.onNavigate(tab, tabEl ?? undefined)
+          }}
+          onDragEnd={(event) => {
+            const current = tabIds()
+            const source = event.operation.source
+            if (event.canceled || !isSortable(source)) return
+
+            const { initialIndex, index } = source
+            if (initialIndex !== index) {
+              props.onReorder(arrayMove(current, source.initialIndex, source.index))
+            }
+          }}
         >
-          <div data-titlebar-tab-list class="flex min-w-0 flex-row items-center" ref={listRef}>
-            <For each={displayTabs()}>
+          <div data-titlebar-tab-list class="flex w-full min-w-0 flex-row items-center" ref={listRef}>
+            <For each={props.tabs}>
               {(tab, index) => {
                 const id = tabKey(tab)
                 let ref!: HTMLDivElement
                 useTabShortcut(index, () => props.onNavigate(tab, ref))
-
-                const dragged = () => drag.active && drag.draggedId === id
                 const serverCtx = createMemo(() => {
                   if (tab.type !== "session") return
                   const conn = global.servers.list().find((item) => ServerConnection.key(item) === tab.server)
@@ -479,68 +264,50 @@ export function TitlebarTabStrip(props: {
                     <SessionTabSlot
                       tab={tab}
                       id={id}
+                      index={index}
                       active={() => props.currentTab() === tab}
                       activeServerKey={props.activeServerKey}
                       forceTruncate={props.forceTruncate}
-                      dragActive={drag.active}
-                      dragged={dragged}
-                      pressed={() => pressedId() === id}
                       serverCtx={serverCtx}
-                      suppressNavigation={() => suppressNavigation()}
-                      onPointerDown={(event) => {
-                        if (dragged()) return
-                        onPointerDown(id, event)
+                      onNavigate={(element) => {
+                        ref = element
+                        props.onNavigate(tab, element)
                       }}
-                      onNavigate={(element) => props.onNavigate(tab, element)}
                       onClose={() => props.onClose(tab)}
                     />
                   )
                 }
 
                 return (
-                  <DraftTabItem
-                    tabKey={id}
-                    dragActive={drag.active}
-                    onPointerDown={(event) => {
-                      if (dragged()) return
-                      onPointerDown(id, event)
-                    }}
-                    ref={ref}
-                    href={tabHref(tab)}
+                  <DraftTabSlot
+                    tab={tab}
+                    id={id}
+                    index={index}
+                    active={() => props.currentTab() === tab}
                     title={language.t("command.session.new")}
-                    onNavigate={() => props.onNavigate(tab, ref)}
+                    onNavigate={(element) => {
+                      ref = element
+                      props.onNavigate(tab, element)
+                    }}
                     onClose={() => props.onClose(tab)}
-                    suppressNavigation={() => suppressNavigation()}
-                    active={props.currentTab() === tab}
-                    pressed={pressedId() === id}
-                    hidden={dragged()}
                   />
                 )
               }}
             </For>
           </div>
-        </div>
-        <div
-          data-slot="titlebar-tabs-fade-left"
-          aria-hidden="true"
-          class="pointer-events-none absolute inset-y-0 left-0 z-10 w-6 bg-[linear-gradient(to_right,var(--v2-background-bg-deep),transparent)]"
-        />
-        <div
-          data-slot="titlebar-tabs-fade-right"
-          aria-hidden="true"
-          class="pointer-events-none absolute inset-y-0 right-0 z-10 w-6 bg-[linear-gradient(to_left,var(--v2-background-bg-deep),transparent)]"
-        />
+        </DragDropProvider>
       </div>
-      <Show when={drag.active && draggedTab() && dragPreview}>
-        {(_) => (
-          <Portal>
-            <div data-titlebar-tab-preview style={floaterStyle()}>
-              {dragPreview}
-            </div>
-          </Portal>
-        )}
-      </Show>
-    </>
+      <div
+        data-slot="titlebar-tabs-fade-left"
+        aria-hidden="true"
+        class="pointer-events-none absolute inset-y-0 left-0 z-10 w-6 bg-[linear-gradient(to_right,var(--v2-background-bg-deep),transparent)]"
+      />
+      <div
+        data-slot="titlebar-tabs-fade-right"
+        aria-hidden="true"
+        class="pointer-events-none absolute inset-y-0 right-0 z-10 w-6 bg-[linear-gradient(to_left,var(--v2-background-bg-deep),transparent)]"
+      />
+    </div>
   )
 }
 

packages/app/src/components/titlebar.tsx

@@ -99,6 +99,8 @@ export function Titlebar(props: { update?: TitlebarUpdate }) {
 
   const path = () => `${location.pathname}${location.search}${location.hash}`
   const creating = createMemo(() => {
+    const route = layout.route()
+    if (route.type === "draft" || route.type === "dir-new-sesssion") return true
     if (!params.dir) return false
     if (params.id) return false
     const parts = location.pathname.replace(/\/+$/, "").split("/")
@@ -319,6 +321,12 @@ export function Titlebar(props: { update?: TitlebarUpdate }) {
                 return
               }
 
+              const activeTab = currentTab()
+              if (activeTab?.type === "draft") {
+                tabs.newDraft({ server: activeTab.server, directory: activeTab.directory }, "")
+                return
+              }
+
               const current = layout.projects.list()[0]
               if (current) {
                 tabs.newDraft({ server: server.key, directory: current.worktree }, "")
@@ -460,7 +468,7 @@ export function Titlebar(props: { update?: TitlebarUpdate }) {
                   }}
                   onReorder={(keys) => tabsStoreActions.reorder(keys)}
                 />
-                <Show when={!(creating() && params.dir)}>
+                <Show when={!creating()}>
                   <TooltipV2
                     placement="bottom"
                     value={

packages/app/src/context/layout.tsx

@@ -1,4 +1,4 @@
-import { createStore, produce } from "solid-js/store"
+import { createStore, produce, reconcile } from "solid-js/store"
 import { batch, createEffect, createMemo, onCleanup, onMount, type Accessor } from "solid-js"
 import { useLocation } from "@solidjs/router"
 import { createSimpleContext } from "@opencode-ai/ui/context"
@@ -17,6 +17,7 @@ import type { ProjectAvatarVariant } from "@opencode-ai/ui/v2/project-avatar-v2"
 import { migrateLegacySessionStateKeys, ServerScope, SessionStateKey } from "@/utils/server-scope"
 import { createSessionKeyReader, ensureSessionKey, pruneSessionKeys } from "./layout-helpers"
 import { requireServerKey } from "@/utils/session-route"
+import { type DraftTab, useTabs } from "./tabs"
 
 export { createSessionKeyReader, ensureSessionKey, pruneSessionKeys }
 
@@ -73,6 +74,7 @@ type TabHandoff = {
 }
 
 export type LocalProject = Partial<Project> & { worktree: string; expanded: boolean }
+export type HomeProjectSelection = { server: ServerConnection.Key; directory?: string }
 
 export type ReviewDiffStyle = "unified" | "split"
 
@@ -158,12 +160,17 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
     const serverSdk = useServerSDK()
     const serverSync = useServerSync()
     const server = useServer()
+    const tabs = useTabs()
     const platform = usePlatform()
     const location = useLocation()
     const route = createMemo(() => {
       const value = currentRoute(location.pathname, location.search)
       if (value.type === "home") return value
       if (value.server) return value
+      if (value.type === "draft") {
+        const draft = tabs.store.find((tab): tab is DraftTab => tab.type === "draft" && tab.draftID === value.draftID)
+        if (draft) return { ...value, server: draft.server }
+      }
       return { ...value, server: server.key }
     })
 
@@ -290,6 +297,9 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
         handoff: {
           tabs: undefined as TabHandoff | undefined,
         },
+        home: {
+          selection: { server: server.key } as HomeProjectSelection,
+        },
       }),
     )
 
@@ -579,6 +589,12 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
     return {
       route,
       ready,
+      home: {
+        selection: createMemo(() => store.home.selection),
+        setSelection(selection: HomeProjectSelection) {
+          setStore("home", "selection", reconcile(selection))
+        },
+      },
       handoff: {
         tabs: createMemo(() => store.handoff?.tabs),
         setTabs(dir: string, id: string) {

packages/app/src/context/notification.tsx

@@ -1,9 +1,9 @@
 import { createStore, reconcile } from "solid-js/store"
-import { type Accessor, batch, createEffect, createMemo, onCleanup } from "solid-js"
-import { useParams } from "@solidjs/router"
+import { type Accessor, batch, createEffect, createMemo, createRoot, getOwner, onCleanup } from "solid-js"
+import { useParams, useSearchParams } from "@solidjs/router"
 import { createSimpleContext } from "@opencode-ai/ui/context"
-import { useServerSDK } from "./server-sdk"
-import { useServerSync } from "./server-sync"
+import type { ServerSDK } from "./server-sdk"
+import type { ServerSync } from "./server-sync"
 import { usePlatform } from "@/context/platform"
 import { useLanguage } from "@/context/language"
 import { useSettings } from "@/context/settings"
@@ -12,6 +12,11 @@ import { decode64 } from "@/utils/base64"
 import { EventSessionError } from "@opencode-ai/sdk/v2"
 import { Persist, persisted } from "@/utils/persist"
 import { playSoundById } from "@/utils/sound"
+import { useGlobal } from "./global"
+import { ServerConnection, useServer } from "./server"
+import { type DraftTab, useTabs } from "./tabs"
+import { requireServerKey } from "@/utils/session-route"
+import type { ServerScope } from "@/utils/server-scope"
 
 type NotificationBase = {
   directory?: string
@@ -107,267 +112,360 @@ function buildNotificationIndex(list: Notification[]) {
 export const { use: useNotification, provider: NotificationProvider } = createSimpleContext({
   name: "Notification",
   gate: false,
-  init: (props: { directory?: Accessor<string | undefined>; sessionID?: Accessor<string | undefined> }) => {
-    const params = useParams()
-    const serverSDK = useServerSDK()
-    const serverSync = useServerSync()
+  init: () => {
+    const params = useParams<{ serverKey?: string; dir?: string; id?: string }>()
+    const [search] = useSearchParams<{ draftId?: string }>()
+    const global = useGlobal()
+    const server = useServer()
+    const tabs = useTabs()
     const platform = usePlatform()
     const settings = useSettings()
     const language = useLanguage()
+    const owner = getOwner()
+    const states = new Map<ServerScope, { dispose: () => void; state: NotificationState }>()
 
-    const empty: Notification[] = []
-
-    const currentDirectory = createMemo(() => {
-      return props.directory?.() ?? decode64(params.dir)
+    const activeServer = createMemo(() => {
+      if (params.serverKey) return requireServerKey(params.serverKey)
+      if (search.draftId) {
+        const draft = tabs.store.find((tab): tab is DraftTab => tab.type === "draft" && tab.draftID === search.draftId)
+        if (draft) return draft.server
+      }
+      return server.key
     })
+    const activeDirectory = createMemo(() => decode64(params.dir))
+    const activeSession = createMemo(() => params.id)
 
-    const currentSession = createMemo(() => props.sessionID?.() ?? params.id)
-
-    const [store, setStore, _, ready] = persisted(
-      Persist.serverGlobal(serverSDK().scope, "notification", ["notification.v1"]),
-      createStore({
-        list: [] as Notification[],
-      }),
-    )
-    const [index, setIndex] = createStore<NotificationIndex>(buildNotificationIndex(store.list))
-
-    const meta = { pruned: false, disposed: false }
-
-    const updateUnseen = (scope: "session" | "project", key: string, unseen: Notification[]) => {
-      setIndex(scope, "unseen", key, unseen)
-      setIndex(scope, "unseenCount", key, unseen.length)
-      setIndex(
-        scope,
-        "unseenHasError",
-        key,
-        unseen.some((notification) => notification.type === "error"),
+    const ensure = (key: ServerConnection.Key) => {
+      const conn = global.servers.list().find((item) => ServerConnection.key(item) === key)
+      if (!conn) throw new Error(`Notification server not found: ${key}`)
+      const ctx = global.ensureServerCtx(conn)
+      const existing = states.get(ctx.sdk.scope)
+      if (existing) return existing.state
+      const root = createRoot(
+        (dispose) => ({
+          dispose,
+          state: createServerNotificationState({
+            sdk: ctx.sdk,
+            sync: ctx.sync,
+            active: () => server.scope(activeServer()) === ctx.sdk.scope,
+            directory: activeDirectory,
+            sessionID: activeSession,
+            platform,
+            settings,
+            language,
+          }),
+        }),
+        owner ?? undefined,
       )
-    }
-
-    const appendToIndex = (notification: Notification) => {
-      if (notification.session) {
-        setIndex("session", "all", notification.session, (all = []) => [...all, notification])
-        if (!notification.viewed) {
-          setIndex("session", "unseen", notification.session, (unseen = []) => [...unseen, notification])
-          setIndex("session", "unseenCount", notification.session, (count = 0) => count + 1)
-          if (notification.type === "error") setIndex("session", "unseenHasError", notification.session, true)
-        }
-      }
-
-      if (notification.directory) {
-        setIndex("project", "all", notification.directory, (all = []) => [...all, notification])
-        if (!notification.viewed) {
-          setIndex("project", "unseen", notification.directory, (unseen = []) => [...unseen, notification])
-          setIndex("project", "unseenCount", notification.directory, (count = 0) => count + 1)
-          if (notification.type === "error") setIndex("project", "unseenHasError", notification.directory, true)
-        }
-      }
-    }
-
-    const removeFromIndex = (notification: Notification) => {
-      if (notification.session) {
-        setIndex("session", "all", notification.session, (all = []) => all.filter((n) => n !== notification))
-        if (!notification.viewed) {
-          const unseen = (index.session.unseen[notification.session] ?? empty).filter((n) => n !== notification)
-          updateUnseen("session", notification.session, unseen)
-        }
-      }
-
-      if (notification.directory) {
-        setIndex("project", "all", notification.directory, (all = []) => all.filter((n) => n !== notification))
-        if (!notification.viewed) {
-          const unseen = (index.project.unseen[notification.directory] ?? empty).filter((n) => n !== notification)
-          updateUnseen("project", notification.directory, unseen)
-        }
-      }
+      states.set(ctx.sdk.scope, root)
+      return root.state
     }
 
     createEffect(() => {
-      if (!ready()) return
-      if (meta.pruned) return
-      meta.pruned = true
-      const list = pruneNotifications(store.list)
-      batch(() => {
-        setStore("list", list)
-        setIndex(reconcile(buildNotificationIndex(list), { merge: false }))
+      global.servers.list().forEach((conn) => ensure(ServerConnection.key(conn)))
+    })
+
+    createEffect(() => {
+      const scopes = new Set(global.servers.list().map((conn) => server.scope(ServerConnection.key(conn))))
+      states.forEach((value, scope) => {
+        if (scopes.has(scope)) return
+        value.dispose()
+        states.delete(scope)
       })
     })
 
-    const append = (notification: Notification) => {
-      const list = pruneNotifications([...store.list, notification])
-      const keep = new Set(list)
-      const removed = store.list.filter((n) => !keep.has(n))
+    onCleanup(() => states.forEach((value) => value.dispose()))
 
-      batch(() => {
-        if (keep.has(notification)) appendToIndex(notification)
-        removed.forEach((n) => removeFromIndex(n))
-        setStore("list", list)
-      })
-    }
-
-    const lookup = async (directory: string, sessionID?: string) => {
-      if (!sessionID) return undefined
-      const sync = serverSync().ensureDirSyncContext(directory)
-      const session = sync.session.get(sessionID)
-      if (session) return session
-      return sync.session
-        .sync(sessionID)
-        .then(() => sync.session.get(sessionID))
-        .catch(() => undefined)
-    }
-
-    const viewedInCurrentSession = (directory: string, sessionID?: string) => {
-      const activeDirectory = currentDirectory()
-      const activeSession = currentSession()
-      if (!activeDirectory) return false
-      if (!activeSession) return false
-      if (!sessionID) return false
-      if (directory !== activeDirectory) return false
-      return sessionID === activeSession
-    }
-
-    const handleSessionIdle = (directory: string, event: { properties: { sessionID?: string } }, time: number) => {
-      const sessionID = event.properties.sessionID
-      void lookup(directory, sessionID).then((session) => {
-        if (meta.disposed) return
-        if (!session) return
-        if (session.parentID) return
-
-        if (settings.sounds.agentEnabled()) {
-          void playSoundById(settings.sounds.agent())
-        }
-
-        append({
-          directory,
-          time,
-          viewed: viewedInCurrentSession(directory, sessionID),
-          type: "turn-complete",
-          session: sessionID,
-        })
-
-        const href = `/${base64Encode(directory)}/session/${sessionID}`
-        if (settings.notifications.agent()) {
-          void platform.notify(language.t("notification.session.responseReady.title"), session.title ?? sessionID, href)
-        }
-      })
-    }
-
-    const handleSessionError = (
-      directory: string,
-      event: { properties: { sessionID?: string; error?: EventSessionError["properties"]["error"] } },
-      time: number,
-    ) => {
-      const sessionID = event.properties.sessionID
-      void lookup(directory, sessionID).then((session) => {
-        if (meta.disposed) return
-        if (session?.parentID) return
-
-        if (settings.sounds.errorsEnabled()) {
-          void playSoundById(settings.sounds.errors())
-        }
-
-        const error = "error" in event.properties ? event.properties.error : undefined
-        append({
-          directory,
-          time,
-          viewed: viewedInCurrentSession(directory, sessionID),
-          type: "error",
-          session: sessionID ?? "global",
-          error,
-        })
-        const description =
-          session?.title ??
-          (typeof error === "string" ? error : language.t("notification.session.error.fallbackDescription"))
-        const href = sessionID ? `/${base64Encode(directory)}/session/${sessionID}` : `/${base64Encode(directory)}`
-        if (settings.notifications.errors()) {
-          void platform.notify(language.t("notification.session.error.title"), description, href)
-        }
-      })
-    }
-
-    const unsub = serverSDK().event.listen((e) => {
-      const event = e.details
-      if (event.type !== "session.idle" && event.type !== "session.error") return
-
-      const directory = e.name
-      const time = Date.now()
-      if (event.type === "session.idle") {
-        handleSessionIdle(directory, event, time)
-        return
-      }
-      handleSessionError(directory, event, time)
-    })
-    onCleanup(() => {
-      meta.disposed = true
-      unsub()
-    })
+    const selected = () => ensure(activeServer())
 
     return {
-      ready,
+      ready: () => selected().ready(),
+      ensureServerState: ensure,
       session: {
-        all(session: string) {
-          return index.session.all[session] ?? empty
-        },
-        unseen(session: string) {
-          return index.session.unseen[session] ?? empty
-        },
-        unseenCount(session: string) {
-          return index.session.unseenCount[session] ?? 0
-        },
-        unseenHasError(session: string) {
-          return index.session.unseenHasError[session] ?? false
-        },
-        markViewed(session: string) {
-          const unseen = index.session.unseen[session] ?? empty
-          if (!unseen.length) return
-
-          const projects = [
-            ...new Set(unseen.flatMap((notification) => (notification.directory ? [notification.directory] : []))),
-          ]
-          batch(() => {
-            setStore("list", (n) => n.session === session && !n.viewed, "viewed", true)
-            updateUnseen("session", session, [])
-            projects.forEach((directory) => {
-              const next = (index.project.unseen[directory] ?? empty).filter(
-                (notification) => notification.session !== session,
-              )
-              updateUnseen("project", directory, next)
-            })
-          })
-        },
+        all: (session: string) => selected().session.all(session),
+        unseen: (session: string) => selected().session.unseen(session),
+        unseenCount: (session: string) => selected().session.unseenCount(session),
+        unseenHasError: (session: string) => selected().session.unseenHasError(session),
+        markViewed: (session: string) => selected().session.markViewed(session),
       },
       project: {
-        all(directory: string) {
-          return index.project.all[directory] ?? empty
-        },
-        unseen(directory: string) {
-          return index.project.unseen[directory] ?? empty
-        },
-        unseenCount(directory: string) {
-          return index.project.unseenCount[directory] ?? 0
-        },
-        unseenHasError(directory: string) {
-          return index.project.unseenHasError[directory] ?? false
-        },
-        markViewed(directory: string) {
-          const unseen = index.project.unseen[directory] ?? empty
-          if (!unseen.length) return
-
-          const sessions = [
-            ...new Set(unseen.flatMap((notification) => (notification.session ? [notification.session] : []))),
-          ]
-          batch(() => {
-            setStore("list", (n) => n.directory === directory && !n.viewed, "viewed", true)
-            updateUnseen("project", directory, [])
-            sessions.forEach((session) => {
-              const next = (index.session.unseen[session] ?? empty).filter(
-                (notification) => notification.directory !== directory,
-              )
-              updateUnseen("session", session, next)
-            })
-          })
-        },
+        all: (directory: string) => selected().project.all(directory),
+        unseen: (directory: string) => selected().project.unseen(directory),
+        unseenCount: (directory: string) => selected().project.unseenCount(directory),
+        unseenHasError: (directory: string) => selected().project.unseenHasError(directory),
+        markViewed: (directory: string) => selected().project.markViewed(directory),
       },
     }
   },
 })
+
+type NotificationState = ReturnType<typeof createServerNotificationState>
+
+function createServerNotificationState(input: {
+  sdk: ServerSDK
+  sync: ServerSync
+  active: Accessor<boolean>
+  directory: Accessor<string | undefined>
+  sessionID: Accessor<string | undefined>
+  platform: ReturnType<typeof usePlatform>
+  settings: ReturnType<typeof useSettings>
+  language: ReturnType<typeof useLanguage>
+}) {
+  const serverSDK = () => input.sdk
+  const serverSync = () => input.sync
+  const platform = input.platform
+  const settings = input.settings
+  const language = input.language
+
+  const empty: Notification[] = []
+
+  const currentDirectory = input.directory
+  const currentSession = input.sessionID
+
+  const [store, setStore, _, ready] = persisted(
+    Persist.serverGlobal(serverSDK().scope, "notification", ["notification.v1"]),
+    createStore({
+      list: [] as Notification[],
+    }),
+  )
+  const [index, setIndex] = createStore<NotificationIndex>(buildNotificationIndex(store.list))
+
+  const meta = { pruned: false, disposed: false }
+
+  const updateUnseen = (scope: "session" | "project", key: string, unseen: Notification[]) => {
+    setIndex(scope, "unseen", key, unseen)
+    setIndex(scope, "unseenCount", key, unseen.length)
+    setIndex(
+      scope,
+      "unseenHasError",
+      key,
+      unseen.some((notification) => notification.type === "error"),
+    )
+  }
+
+  const appendToIndex = (notification: Notification) => {
+    if (notification.session) {
+      setIndex("session", "all", notification.session, (all = []) => [...all, notification])
+      if (!notification.viewed) {
+        setIndex("session", "unseen", notification.session, (unseen = []) => [...unseen, notification])
+        setIndex("session", "unseenCount", notification.session, (count = 0) => count + 1)
+        if (notification.type === "error") setIndex("session", "unseenHasError", notification.session, true)
+      }
+    }
+
+    if (notification.directory) {
+      setIndex("project", "all", notification.directory, (all = []) => [...all, notification])
+      if (!notification.viewed) {
+        setIndex("project", "unseen", notification.directory, (unseen = []) => [...unseen, notification])
+        setIndex("project", "unseenCount", notification.directory, (count = 0) => count + 1)
+        if (notification.type === "error") setIndex("project", "unseenHasError", notification.directory, true)
+      }
+    }
+  }
+
+  const removeFromIndex = (notification: Notification) => {
+    if (notification.session) {
+      setIndex("session", "all", notification.session, (all = []) => all.filter((n) => n !== notification))
+      if (!notification.viewed) {
+        const unseen = (index.session.unseen[notification.session] ?? empty).filter((n) => n !== notification)
+        updateUnseen("session", notification.session, unseen)
+      }
+    }
+
+    if (notification.directory) {
+      setIndex("project", "all", notification.directory, (all = []) => all.filter((n) => n !== notification))
+      if (!notification.viewed) {
+        const unseen = (index.project.unseen[notification.directory] ?? empty).filter((n) => n !== notification)
+        updateUnseen("project", notification.directory, unseen)
+      }
+    }
+  }
+
+  createEffect(() => {
+    if (!ready()) return
+    if (meta.pruned) return
+    meta.pruned = true
+    const list = pruneNotifications(store.list)
+    batch(() => {
+      setStore("list", list)
+      setIndex(reconcile(buildNotificationIndex(list), { merge: false }))
+    })
+  })
+
+  const append = (notification: Notification) => {
+    const list = pruneNotifications([...store.list, notification])
+    const keep = new Set(list)
+    const removed = store.list.filter((n) => !keep.has(n))
+
+    batch(() => {
+      if (keep.has(notification)) appendToIndex(notification)
+      removed.forEach((n) => removeFromIndex(n))
+      setStore("list", list)
+    })
+  }
+
+  const lookup = async (directory: string, sessionID?: string) => {
+    if (!sessionID) return undefined
+    const sync = serverSync().ensureDirSyncContext(directory)
+    const session = sync.session.get(sessionID)
+    if (session) return session
+    return sync.session
+      .sync(sessionID)
+      .then(() => sync.session.get(sessionID))
+      .catch(() => undefined)
+  }
+
+  const viewedInCurrentSession = (directory: string, sessionID?: string) => {
+    if (!input.active()) return false
+    const activeDirectory = currentDirectory()
+    const activeSession = currentSession()
+    if (!activeSession) return false
+    if (!sessionID) return false
+    if (activeDirectory && directory !== activeDirectory) return false
+    return sessionID === activeSession
+  }
+
+  const handleSessionIdle = (directory: string, event: { properties: { sessionID?: string } }, time: number) => {
+    const sessionID = event.properties.sessionID
+    void lookup(directory, sessionID).then((session) => {
+      if (meta.disposed) return
+      if (!session) return
+      if (session.parentID) return
+
+      if (settings.sounds.agentEnabled()) {
+        void playSoundById(settings.sounds.agent())
+      }
+
+      append({
+        directory,
+        time,
+        viewed: viewedInCurrentSession(directory, sessionID),
+        type: "turn-complete",
+        session: sessionID,
+      })
+
+      const href = `/${base64Encode(directory)}/session/${sessionID}`
+      if (settings.notifications.agent()) {
+        void platform.notify(language.t("notification.session.responseReady.title"), session.title ?? sessionID, href)
+      }
+    })
+  }
+
+  const handleSessionError = (
+    directory: string,
+    event: { properties: { sessionID?: string; error?: EventSessionError["properties"]["error"] } },
+    time: number,
+  ) => {
+    const sessionID = event.properties.sessionID
+    void lookup(directory, sessionID).then((session) => {
+      if (meta.disposed) return
+      if (session?.parentID) return
+
+      if (settings.sounds.errorsEnabled()) {
+        void playSoundById(settings.sounds.errors())
+      }
+
+      const error = "error" in event.properties ? event.properties.error : undefined
+      append({
+        directory,
+        time,
+        viewed: viewedInCurrentSession(directory, sessionID),
+        type: "error",
+        session: sessionID ?? "global",
+        error,
+      })
+      const description =
+        session?.title ??
+        (typeof error === "string" ? error : language.t("notification.session.error.fallbackDescription"))
+      const href = sessionID ? `/${base64Encode(directory)}/session/${sessionID}` : `/${base64Encode(directory)}`
+      if (settings.notifications.errors()) {
+        void platform.notify(language.t("notification.session.error.title"), description, href)
+      }
+    })
+  }
+
+  const unsub = serverSDK().event.listen((e) => {
+    const event = e.details
+    if (event.type !== "session.idle" && event.type !== "session.error") return
+
+    const directory = e.name
+    const time = Date.now()
+    if (event.type === "session.idle") {
+      handleSessionIdle(directory, event, time)
+      return
+    }
+    handleSessionError(directory, event, time)
+  })
+  onCleanup(() => {
+    meta.disposed = true
+    unsub()
+  })
+
+  return {
+    ready,
+    session: {
+      all(session: string) {
+        return index.session.all[session] ?? empty
+      },
+      unseen(session: string) {
+        return index.session.unseen[session] ?? empty
+      },
+      unseenCount(session: string) {
+        return index.session.unseenCount[session] ?? 0
+      },
+      unseenHasError(session: string) {
+        return index.session.unseenHasError[session] ?? false
+      },
+      markViewed(session: string) {
+        const unseen = index.session.unseen[session] ?? empty
+        if (!unseen.length) return
+
+        const projects = [
+          ...new Set(unseen.flatMap((notification) => (notification.directory ? [notification.directory] : []))),
+        ]
+        batch(() => {
+          setStore("list", (n) => n.session === session && !n.viewed, "viewed", true)
+          updateUnseen("session", session, [])
+          projects.forEach((directory) => {
+            const next = (index.project.unseen[directory] ?? empty).filter(
+              (notification) => notification.session !== session,
+            )
+            updateUnseen("project", directory, next)
+          })
+        })
+      },
+    },
+    project: {
+      all(directory: string) {
+        return index.project.all[directory] ?? empty
+      },
+      unseen(directory: string) {
+        return index.project.unseen[directory] ?? empty
+      },
+      unseenCount(directory: string) {
+        return index.project.unseenCount[directory] ?? 0
+      },
+      unseenHasError(directory: string) {
+        return index.project.unseenHasError[directory] ?? false
+      },
+      markViewed(directory: string) {
+        const unseen = index.project.unseen[directory] ?? empty
+        if (!unseen.length) return
+
+        const sessions = [
+          ...new Set(unseen.flatMap((notification) => (notification.session ? [notification.session] : []))),
+        ]
+        batch(() => {
+          setStore("list", (n) => n.directory === directory && !n.viewed, "viewed", true)
+          updateUnseen("project", directory, [])
+          sessions.forEach((session) => {
+            const next = (index.session.unseen[session] ?? empty).filter(
+              (notification) => notification.directory !== directory,
+            )
+            updateUnseen("session", session, next)
+          })
+        })
+      },
+    },
+  }
+}

packages/app/src/context/prompt.tsx

@@ -9,7 +9,7 @@ import { useServerSDK } from "./server-sdk"
 import type { ServerScope } from "@/utils/server-scope"
 import { useSDK } from "./sdk"
 import { useTabs, type Tab } from "./tabs"
-import { ServerConnection, useServer } from "./server"
+import { ServerConnection } from "./server"
 import { requireServerKey } from "@/utils/session-route"
 import { useSettings } from "./settings"
 
@@ -287,7 +287,6 @@ export const { use: usePrompt, provider: PromptProvider } = createSimpleContext(
     const sdk = useSDK()
     const [search] = useSearchParams<{ draftId?: string }>()
     const serverSDK = useServerSDK()
-    const server = useServer()
     const tabs = useTabs()
     const settings = useSettings()
     const cache = new Map<string, PromptCacheEntry>()
@@ -312,7 +311,8 @@ export const { use: usePrompt, provider: PromptProvider } = createSimpleContext(
     }
 
     const owner = getOwner()
-    const serverKey = () => (params.serverKey ? requireServerKey(params.serverKey) : server.key)
+    const serverKey = () =>
+      params.serverKey ? requireServerKey(params.serverKey) : ServerConnection.key(serverSDK().server)
     const scope = () =>
       search.draftId ? { draftID: search.draftId } : { dir: base64Encode(sdk().directory), id: params.id }
     const load = (scope: Scope) => {

packages/app/src/context/server-sdk.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test"
-import { coalesceServerEvents, resumeStreamAfterPageShow } from "./server-sdk"
+import { coalesceServerEvents, enqueueServerEvent, resumeStreamAfterPageShow } from "./server-sdk"
 import type { Event } from "@opencode-ai/sdk/v2/client"
 
 describe("resumeStreamAfterPageShow", () => {
@@ -15,19 +15,23 @@ describe("resumeStreamAfterPageShow", () => {
 })
 
 describe("coalesceServerEvents", () => {
-  const delta = (value: string, field = "text") => ({
+  const delta = (value: string, field = "text", partID = "part") => ({
     directory: "/repo",
     payload: {
       type: "message.part.delta",
-      properties: { messageID: "msg", partID: "part", field, delta: value },
+      properties: { messageID: "msg", partID, field, delta: value },
     } as Event,
   })
 
   test("merges adjacent deltas for the same field", () => {
-    const result = coalesceServerEvents([delta("hello "), delta("world")])
+    const first = delta("hello ")
+    const second = delta("world")
+    first.payload.id = "first"
+    second.payload.id = "second"
+    const result = coalesceServerEvents([first, second])
 
     expect(result).toHaveLength(1)
-    expect(result[0]?.payload).toMatchObject({ properties: { delta: "hello world" } })
+    expect(result[0]?.payload).toMatchObject({ id: "second", properties: { delta: "hello world" } })
   })
 
   test("preserves event boundaries and distinct fields", () => {
@@ -45,9 +49,112 @@ describe("coalesceServerEvents", () => {
     ])
   })
 
-  test("drops stale deltas", () => {
-    const result = coalesceServerEvents([delta("stale")], new Set(["/repo:msg:part"]))
+  test("preserves event ID order across interleaved deltas", () => {
+    const first = delta("a")
+    const other = delta("b", "text", "other")
+    const last = delta("c")
+    first.payload.id = "1"
+    other.payload.id = "2"
+    last.payload.id = "3"
 
-    expect(result).toEqual([])
+    const result = coalesceServerEvents([first, other, last])
+
+    expect(result.map((event) => event.payload.id)).toEqual(["1", "2", "3"])
+  })
+})
+
+describe("enqueueServerEvent", () => {
+  const partUpdated = (text: string) =>
+    ({
+      type: "message.part.updated",
+      properties: {
+        sessionID: "session",
+        part: { id: "part", sessionID: "session", messageID: "message", type: "text", text },
+      },
+    }) as Event
+
+  test("preserves part updates across message remove and re-add barriers", () => {
+    const events: Array<{ directory: string; payload: Event }> = []
+    const enqueue = (payload: Event) => enqueueServerEvent(events, { directory: "/repo", payload })
+
+    enqueue(partUpdated("old"))
+    enqueue({ type: "message.removed", properties: { sessionID: "session", messageID: "message" } } as Event)
+    enqueue({
+      type: "message.updated",
+      properties: {
+        sessionID: "session",
+        info: {
+          id: "message",
+          sessionID: "session",
+          role: "user",
+          time: { created: 1 },
+          agent: "build",
+          model: { providerID: "provider", modelID: "model" },
+        },
+      },
+    } as Event)
+    enqueue(partUpdated("new"))
+
+    expect(events.map((event) => event.payload.type)).toEqual([
+      "message.part.updated",
+      "message.removed",
+      "message.updated",
+      "message.part.updated",
+    ])
+  })
+
+  test("preserves deltas after a replacement snapshot", () => {
+    const events: Array<{ directory: string; payload: Event }> = []
+    const enqueue = (payload: Event) => enqueueServerEvent(events, { directory: "/repo", payload })
+
+    enqueue(partUpdated("a"))
+    enqueue(partUpdated("ab"))
+    enqueue({
+      type: "message.part.delta",
+      properties: { sessionID: "session", messageID: "message", partID: "part", field: "text", delta: "c" },
+    } as Event)
+
+    const result = coalesceServerEvents(events)
+    expect(result.map((event) => event.payload.type)).toEqual(["message.part.updated", "message.part.delta"])
+    expect(result[0]?.payload).toMatchObject({ properties: { part: { text: "ab" } } })
+    expect(result[1]?.payload).toMatchObject({ properties: { delta: "c" } })
+  })
+
+  test("preserves updates after session deletion", () => {
+    const events: Array<{ directory: string; payload: Event }> = []
+    const enqueue = (payload: Event) => enqueueServerEvent(events, { directory: "/repo", payload })
+
+    enqueue(partUpdated("old"))
+    enqueue({
+      type: "session.deleted",
+      properties: { sessionID: "session", info: { id: "session" } },
+    } as Event)
+    enqueue(partUpdated("new"))
+
+    expect(events.map((event) => event.payload.type)).toEqual([
+      "message.part.updated",
+      "session.deleted",
+      "message.part.updated",
+    ])
+  })
+
+  test("does not coalesce edge-triggered session statuses", () => {
+    const events: Array<{ directory: string; payload: Event }> = []
+    const enqueue = (status: "retry" | "busy") =>
+      enqueueServerEvent(events, {
+        directory: "/repo",
+        payload: {
+          type: "session.status",
+          properties: {
+            sessionID: "session",
+            status: status === "retry" ? { type: "retry", attempt: 1, message: "retry", next: 1 } : { type: "busy" },
+          },
+        } as Event,
+      })
+
+    enqueue("retry")
+    enqueue("busy")
+
+    expect(events).toHaveLength(2)
   })
 })

packages/app/src/context/server-sdk.tsx

@@ -17,34 +17,56 @@ const isAbortError = (error: unknown) =>
 const isStreamClosed = (error: unknown, signal?: AbortSignal) => isAbortError(error) || signal?.aborted === true
 type QueuedServerEvent = { directory: string; payload: Event }
 
-const deltaKey = (directory: string, messageID: string, partID: string) => `${directory}:${messageID}:${partID}`
+const coalescedKey = (event: QueuedServerEvent) => {
+  if (event.payload.type === "lsp.updated") return `lsp.updated:${event.directory}`
+  if (event.payload.type === "message.part.updated") {
+    const part = event.payload.properties.part
+    return `message.part.updated:${event.directory}:${part.messageID}:${part.id}`
+  }
+  return undefined
+}
 
-export function coalesceServerEvents(events: QueuedServerEvent[], stale?: Set<string>) {
+export function enqueueServerEvent(queue: QueuedServerEvent[], event: QueuedServerEvent) {
+  const key = coalescedKey(event)
+  const previous = queue[queue.length - 1]
+  if (key && previous && coalescedKey(previous) === key) {
+    queue[queue.length - 1] = event
+    return false
+  }
+  queue.push(event)
+  return true
+}
+
+export function coalesceServerEvents(events: QueuedServerEvent[]) {
   const output: QueuedServerEvent[] = []
-  const deltas = new Map<string, number>()
   events.forEach((event) => {
-    if (stale && event.payload.type === "message.part.delta") {
-      const props = event.payload.properties
-      if (stale.has(deltaKey(event.directory, props.messageID, props.partID))) return
-    }
     if (event.payload.type !== "message.part.delta") {
-      deltas.clear()
       output.push(event)
       return
     }
     const props = event.payload.properties
-    const id = `${deltaKey(event.directory, props.messageID, props.partID)}:${props.field}`
-    const index = deltas.get(id)
-    const existing = index === undefined ? undefined : output[index]
-    if (!existing || existing.payload.type !== "message.part.delta") {
-      deltas.set(id, output.length)
+    const previous = output[output.length - 1]
+    if (
+      !previous ||
+      previous.payload.type !== "message.part.delta" ||
+      previous.directory !== event.directory ||
+      previous.payload.properties.messageID !== props.messageID ||
+      previous.payload.properties.partID !== props.partID ||
+      previous.payload.properties.field !== props.field
+    ) {
       output.push({
         directory: event.directory,
         payload: { ...event.payload, properties: { ...props } },
       })
       return
     }
-    existing.payload.properties.delta += props.delta
+    output[output.length - 1] = {
+      directory: event.directory,
+      payload: {
+        ...event.payload,
+        properties: { ...props, delta: previous.payload.properties.delta + props.delta },
+      },
+    }
   })
   return output
 }
@@ -85,20 +107,9 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
 
   let queue: Queued[] = []
   let buffer: Queued[] = []
-  const coalesced = new Map<string, number>()
-  const staleDeltas = new Set<string>()
   let timer: ReturnType<typeof setTimeout> | undefined
   let last = 0
 
-  const key = (directory: string, payload: Event) => {
-    if (payload.type === "session.status") return `session.status:${directory}:${payload.properties.sessionID}`
-    if (payload.type === "lsp.updated") return `lsp.updated:${directory}`
-    if (payload.type === "message.part.updated") {
-      const part = payload.properties.part
-      return `message.part.updated:${directory}:${part.messageID}:${part.id}`
-    }
-  }
-
   const flush = () => {
     if (timer) clearTimeout(timer)
     timer = undefined
@@ -106,15 +117,12 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
     if (queue.length === 0) return
 
     const events = queue
-    const skip = staleDeltas.size > 0 ? new Set(staleDeltas) : undefined
     queue = buffer
     buffer = events
     queue.length = 0
-    coalesced.clear()
-    staleDeltas.clear()
 
     last = Date.now()
-    const output = coalesceServerEvents(events, skip)
+    const output = coalesceServerEvents(events)
     batch(() => {
       output.forEach((event) => emitter.emit(event.directory, event.payload))
     })
@@ -184,29 +192,12 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
           for await (const event of events.stream) {
             resetHeartbeat()
             streamErrorLogged = false
-            const directory = event.directory ?? "global"
-            if (event.payload.type === "sync") {
-              continue
+            if (event.payload.type !== "sync") {
+              const directory = event.directory ?? "global"
+              const payload = event.payload as Event
+              if (enqueueServerEvent(queue, { directory, payload })) schedule()
             }
 
-            const payload = event.payload as Event
-
-            const k = key(directory, payload)
-            if (k) {
-              const i = coalesced.get(k)
-              if (i !== undefined) {
-                queue[i] = { directory, payload }
-                if (payload.type === "message.part.updated") {
-                  const part = payload.properties.part
-                  staleDeltas.add(deltaKey(directory, part.messageID, part.id))
-                }
-                continue
-              }
-              coalesced.set(k, queue.length)
-            }
-            queue.push({ directory, payload })
-            schedule()
-
             if (Date.now() - yielded < STREAM_YIELD_MS) continue
             yielded = Date.now()
             await wait(0)
@@ -269,6 +260,7 @@ function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerS
   })
 
   return {
+    server,
     scope,
     url: server.http.url,
     client: sdk,

packages/app/src/context/server-session.ts

@@ -18,44 +18,67 @@ import { rootSession } from "@/utils/session-route"
 import { dropSessionCaches, pickSessionCacheEvictions, SESSION_CACHE_LIMIT } from "./global-sync/session-cache"
 
 const cmp = (a: string, b: string) => (a < b ? -1 : a > b ? 1 : 0)
+const cmpMessage = (a: Message, b: Message) => a.time.created - b.time.created || cmp(a.id, b.id)
 const SKIP_PARTS = new Set(["patch", "step-start", "step-finish"])
 const initialMessagePageSize = 2
 const historyMessagePageSize = 200
 const sessionInfoLimit = 2_048
+const emptyIDs: ReadonlySet<string> = new Set()
 
 type OptimisticItem = {
   message: Message
   parts: Part[]
+  confirmedParts?: Part[]
+  confirmedMessage?: boolean
 }
 
-const hasParts = (parts: Part[] | undefined, want: Part[]) => {
-  if (!parts) return want.length === 0
-  return want.every((part) => Binary.search(parts, part.id, (item) => item.id).found)
+type MessagePage = {
+  session: Message[]
+  part: { id: string; part: Part[] }[]
+  cursor?: string
+  complete: boolean
 }
 
-function mergeOptimisticPage(
-  page: { session: Message[]; part: { id: string; part: Part[] }[]; cursor?: string; complete: boolean },
-  items: OptimisticItem[],
-) {
-  if (items.length === 0) return { ...page, confirmed: [] as string[] }
+// Most markers describe the current HTTP attempt; deltaParts persists non-durable stream state across retries.
+type MessageLoadState = {
+  touchedMessages: Set<string>
+  removedMessages: Set<string>
+  retainedMessages: Set<string>
+  touchedParts: Map<string, Set<string>>
+  deltaParts: Map<string, Set<string>>
+  carriedDeltaParts: Map<string, Set<string>>
+  removedParts: Map<string, Set<string>>
+  optimisticParts: Map<string, Set<string>>
+  orphanParents: Set<string>
+  clearedMessageParts: Set<string>
+}
+
+function mergeOptimisticPage(page: MessagePage, items: OptimisticItem[]) {
+  if (items.length === 0) return { ...page, observed: [] as { messageID: string; parts: Part[] }[] }
   const session = [...page.session]
   const part = new Map(page.part.map((item) => [item.id, item.part]))
-  const confirmed: string[] = []
+  const observed: { messageID: string; parts: Part[] }[] = []
   for (const item of items) {
     const result = Binary.search(session, item.message.id, (message) => message.id)
     if (!result.found) session.splice(result.index, 0, item.message)
     const current = part.get(item.message.id)
-    if (result.found && hasParts(current, item.parts)) {
-      confirmed.push(item.message.id)
-      continue
-    }
-    part.set(item.message.id, merge(current ?? [], item.parts))
+    const confirmed = result.found
+      ? item.parts.filter((part) => Binary.search(current ?? [], part.id, (value) => value.id).found)
+      : []
+    if (result.found) observed.push({ messageID: item.message.id, parts: confirmed })
+    part.set(
+      item.message.id,
+      merge(
+        result.found ? (current ?? []) : merge(item.confirmedParts ?? [], current ?? []),
+        item.parts.filter((part) => !confirmed.includes(part)),
+      ),
+    )
   }
   return {
     ...page,
     session,
     part: [...part.entries()].sort((a, b) => cmp(a[0], b[0])).map(([id, parts]) => ({ id, part: parts })),
-    confirmed,
+    observed,
   }
 }
 
@@ -75,7 +98,38 @@ function merge<T extends { id: string }>(a: readonly T[], b: readonly T[]) {
   return [...items.values()].sort((x, y) => cmp(x.id, y.id))
 }
 
-export function createServerSession(client: OpencodeClient) {
+function reconcileFetched<T extends { id: string }>(
+  fetched: T[],
+  current: readonly T[],
+  options: {
+    touched?: ReadonlySet<string>
+    retained?: ReadonlySet<string>
+    preserveUnfetched?: boolean | ((item: T) => boolean)
+  } = {},
+) {
+  const result = new Map(fetched.map((item) => [item.id, item]))
+  const live = new Map(current.map((item) => [item.id, item]))
+  if (options.preserveUnfetched) {
+    for (const item of current) {
+      if (!result.has(item.id) && (options.preserveUnfetched === true || options.preserveUnfetched(item)))
+        result.set(item.id, item)
+    }
+  }
+  for (const id of options.retained ?? emptyIDs) {
+    if (result.has(id)) continue
+    const item = live.get(id)
+    if (item) result.set(id, item)
+  }
+  // Events observed while the request is pending are the freshest client state for those identities.
+  for (const id of options.touched ?? emptyIDs) {
+    const item = live.get(id)
+    if (item) result.set(id, item)
+    if (!item) result.delete(id)
+  }
+  return [...result.values()].sort((a, b) => cmp(a.id, b.id))
+}
+
+export function createServerSession(client: OpencodeClient, options?: { retry?: typeof retry }) {
   const [data, setData] = createStore({
     info: {} as Record<string, Session | undefined>,
     session_status: {} as Record<string, SessionStatus>,
@@ -95,10 +149,32 @@ export function createServerSession(client: OpencodeClient) {
   const inflightDiff = new Map<string, Promise<void>>()
   const inflightTodo = new Map<string, Promise<void>>()
   const optimistic = new Map<string, Map<string, OptimisticItem>>()
+  const messageLoads = new Map<string, MessageLoadState>()
+  const pendingParts = new Map<string, Map<string, Set<string>>>()
+  const orphanParts = new Map<string, Set<string>>()
+  const removedMessages = new Map<string, Set<string>>()
+  const deltaBases = new Map<string, { base: string; sessionID: string }>()
+  const deleteMessageParts = (
+    cache: { part: Record<string, Part[] | undefined>; part_text_accum_delta: Record<string, string | undefined> },
+    messageID: string,
+  ) => {
+    for (const part of cache.part[messageID] ?? []) {
+      delete cache.part_text_accum_delta[part.id]
+      deltaBases.delete(part.id)
+    }
+    delete cache.part[messageID]
+  }
   const seen = new Set<string>()
   const infoSeen = new Set<string>()
   const pinned = new Map<string, number>()
-  const generations = new Map<string, number>()
+  const generations = new Map<string, object>()
+  const generation = (sessionID: string) => {
+    const current = generations.get(sessionID)
+    if (current) return current
+    const created = {}
+    generations.set(sessionID, created)
+    return created
+  }
   const [meta, setMeta] = createStore({
     limit: {} as Record<string, number | undefined>,
     cursor: {} as Record<string, string | undefined>,
@@ -115,6 +191,11 @@ export function createServerSession(client: OpencodeClient) {
       const preserve = new Set([
         ...pinned.keys(),
         ...requests.keys(),
+        ...inflight.keys(),
+        ...inflightDiff.keys(),
+        ...inflightTodo.keys(),
+        ...messageLoads.keys(),
+        ...optimistic.keys(),
         ...Object.entries(data.permission)
           .filter(([, items]) => items.length > 0)
           .map(([sessionID]) => sessionID),
@@ -138,6 +219,7 @@ export function createServerSession(client: OpencodeClient) {
         if (!preserve.has(sessionID)) stale.push(sessionID)
       }
       stale.forEach((sessionID) => infoSeen.delete(sessionID))
+      stale.forEach((sessionID) => generations.delete(sessionID))
       setData(
         "info",
         produce((draft) => stale.forEach((sessionID) => delete draft[sessionID])),
@@ -151,21 +233,27 @@ export function createServerSession(client: OpencodeClient) {
     if (cached && !options?.force) return Promise.resolve(cached)
     const pending = requests.get(sessionID)
     if (pending) return pending
-    const generation = generations.get(sessionID) ?? 0
+    const active = generation(sessionID)
     const request = client.session.get({ sessionID }).then((result) => {
       if (!result.data) throw new Error(`Session not found: ${sessionID}`)
-      if ((generations.get(sessionID) ?? 0) !== generation) return result.data
+      if (generations.get(sessionID) !== active) return result.data
       return remember(result.data)
     })
     requests.set(sessionID, request)
-    void request.then(
-      () => {
-        if (requests.get(sessionID) === request) requests.delete(sessionID)
-      },
-      () => {
-        if (requests.get(sessionID) === request) requests.delete(sessionID)
-      },
-    )
+    const cleanup = () => {
+      if (requests.get(sessionID) === request) requests.delete(sessionID)
+      if (
+        generations.get(sessionID) === active &&
+        !data.info[sessionID] &&
+        !requests.has(sessionID) &&
+        !messageLoads.has(sessionID) &&
+        !inflight.has(sessionID) &&
+        !inflightDiff.has(sessionID) &&
+        !inflightTodo.has(sessionID)
+      )
+        generations.delete(sessionID)
+    }
+    void request.then(cleanup, cleanup)
     return request
   }
 
@@ -195,15 +283,121 @@ export function createServerSession(client: OpencodeClient) {
     if (items.size === 0) optimistic.delete(sessionID)
   }
 
+  const clearOptimisticPart = (sessionID: string, messageID: string, partID: string) => {
+    const items = optimistic.get(sessionID)
+    const item = items?.get(messageID)
+    if (!items || !item) return
+    const parts = item.parts.filter((part) => part.id !== partID)
+    const confirmedParts = item.confirmedParts?.filter((part) => part.id !== partID)
+    if (parts.length === 0) {
+      clearOptimistic(sessionID, messageID)
+      return
+    }
+    items.set(messageID, { ...item, parts, confirmedParts, confirmedMessage: true })
+  }
+
+  const confirmOptimisticPart = (sessionID: string, messageID: string, part: Part) => {
+    const items = optimistic.get(sessionID)
+    const item = items?.get(messageID)
+    if (!items || !item) return
+    const parts = item.parts.filter((value) => value.id !== part.id)
+    if (parts.length === 0) {
+      clearOptimistic(sessionID, messageID)
+      return
+    }
+    items.set(messageID, {
+      ...item,
+      parts,
+      confirmedParts: merge(item.confirmedParts ?? [], [part]),
+      confirmedMessage: true,
+    })
+  }
+
+  const confirmOptimistic = (sessionID: string, messageID: string, confirmedParts: Part[]) => {
+    const items = optimistic.get(sessionID)
+    const item = items?.get(messageID)
+    if (!items || !item) return
+    const confirmed = new Set(confirmedParts.map((part) => part.id))
+    const parts = item.parts.filter((part) => !confirmed.has(part.id))
+    if (parts.length === 0) {
+      clearOptimistic(sessionID, messageID)
+      return
+    }
+    items.set(messageID, {
+      ...item,
+      parts,
+      confirmedParts: merge(item.confirmedParts ?? [], confirmedParts),
+      confirmedMessage: true,
+    })
+  }
+
+  const trackPartChange = (sessionID: string, messageID: string, partID: string) => {
+    const load = messageLoads.get(sessionID)
+    if (!load) return
+    // A part event keeps an existing parent when the fetched page omits it without overriding fetched metadata.
+    const messages = data.message[sessionID]
+    if (messages && Binary.search(messages, messageID, (message) => message.id).found)
+      load.retainedMessages.add(messageID)
+    const parts = load.touchedParts.get(messageID)
+    if (parts) {
+      parts.add(partID)
+      return
+    }
+    load.touchedParts.set(messageID, new Set([partID]))
+  }
+
+  const resetMessageLoad = (sessionID: string, load: MessageLoadState) => {
+    load.touchedMessages.clear()
+    load.retainedMessages.clear()
+    load.touchedParts.clear()
+    load.carriedDeltaParts.clear()
+    load.clearedMessageParts.clear()
+    for (const messageID of load.removedMessages) {
+      load.touchedMessages.add(messageID)
+      load.clearedMessageParts.add(messageID)
+    }
+    for (const [messageID, parts] of load.deltaParts) {
+      load.touchedParts.set(messageID, new Set(parts))
+      load.carriedDeltaParts.set(messageID, new Set(parts))
+      const messages = data.message[sessionID]
+      if (messages && Binary.search(messages, messageID, (message) => message.id).found)
+        load.retainedMessages.add(messageID)
+    }
+    for (const [messageID, parts] of load.removedParts) {
+      const touched = load.touchedParts.get(messageID) ?? new Set<string>()
+      parts.forEach((partID) => touched.add(partID))
+      load.touchedParts.set(messageID, touched)
+      const messages = data.message[sessionID]
+      if (messages && Binary.search(messages, messageID, (message) => message.id).found)
+        load.retainedMessages.add(messageID)
+    }
+    for (const [messageID, parts] of load.optimisticParts) {
+      load.removedMessages.delete(messageID)
+      load.clearedMessageParts.add(messageID)
+      load.touchedMessages.add(messageID)
+      const touched = load.touchedParts.get(messageID) ?? new Set<string>()
+      parts.forEach((partID) => touched.add(partID))
+      load.touchedParts.set(messageID, touched)
+    }
+  }
+
   const evict = (sessionIDs: string[]) => {
     if (sessionIDs.length === 0) return
+    const evicted = new Set(sessionIDs)
+    for (const [partID, item] of deltaBases) {
+      if (evicted.has(item.sessionID)) deltaBases.delete(partID)
+    }
     sessionIDs.forEach((sessionID) => {
-      generations.set(sessionID, (generations.get(sessionID) ?? 0) + 1)
+      generations.delete(sessionID)
       clearOptimistic(sessionID)
       requests.delete(sessionID)
       inflight.delete(sessionID)
       inflightDiff.delete(sessionID)
       inflightTodo.delete(sessionID)
+      messageLoads.delete(sessionID)
+      pendingParts.delete(sessionID)
+      orphanParts.delete(sessionID)
+      removedMessages.delete(sessionID)
     })
     setData(
       produce((draft) => {
@@ -230,6 +424,7 @@ export function createServerSession(client: OpencodeClient) {
       ...inflight.keys(),
       ...inflightDiff.keys(),
       ...inflightTodo.keys(),
+      ...messageLoads.keys(),
       ...optimistic.keys(),
       ...Object.entries(data.permission)
         .filter(([, items]) => items.length > 0)
@@ -247,8 +442,11 @@ export function createServerSession(client: OpencodeClient) {
       pickSessionCacheEvictions({ seen, keep: sessionID, limit: SESSION_CACHE_LIMIT, preserve: protectedSessions() }),
     )
 
-  const fetchMessages = async (sessionID: string, limit: number, before?: string) => {
-    const response = await retry(() => client.session.messages({ sessionID, limit, before }))
+  const fetchMessages = async (sessionID: string, limit: number, before?: string, onAttempt?: () => void) => {
+    const response = await (options?.retry ?? retry)(() => {
+      onAttempt?.()
+      return client.session.messages({ sessionID, limit, before })
+    })
     const items = (response.data ?? []).filter((item) => !!item?.info?.id)
     return {
       session: items.map((item) => cleanMessage(item.info)).sort((a, b) => cmp(a.id, b.id)),
@@ -261,30 +459,153 @@ export function createServerSession(client: OpencodeClient) {
     }
   }
 
+  const replaceMessages = (sessionID: string, messages: Message[]) => {
+    const messageIDs = new Set(messages.map((message) => message.id))
+    const dropped = (data.message[sessionID] ?? []).filter((message) => !messageIDs.has(message.id))
+    setData("message", sessionID, reconcile(messages, { key: "id" }))
+    setData(
+      produce((draft) => {
+        for (const message of dropped) deleteMessageParts(draft, message.id)
+      }),
+    )
+    return messageIDs
+  }
+
+  const replaceParts = (
+    sessionID: string,
+    items: MessagePage["part"],
+    messageIDs: Set<string>,
+    load?: MessageLoadState,
+  ) => {
+    for (const item of items) {
+      if (!messageIDs.has(item.id)) continue
+      const fetched = load?.clearedMessageParts.has(item.id)
+        ? []
+        : item.part.filter((part) => !SKIP_PARTS.has(part.type))
+      const fetchedIDs = new Set(fetched.map((part) => part.id))
+      const pending = pendingParts.get(sessionID)?.get(item.id)
+      const touched = new Set([...(load?.touchedParts.get(item.id) ?? []), ...(pending ?? [])])
+      for (const part of fetched) {
+        const accumulated = data.part_text_accum_delta[part.id]
+        const base = deltaBases.get(part.id)?.base
+        const preserveDelta =
+          base !== undefined &&
+          accumulated !== undefined &&
+          "text" in part &&
+          typeof part.text === "string" &&
+          part.text.startsWith(base) &&
+          accumulated.startsWith(part.text) &&
+          accumulated !== part.text
+        if (preserveDelta) touched.add(part.id)
+        if (load?.carriedDeltaParts.get(item.id)?.has(part.id) && !preserveDelta) touched.delete(part.id)
+      }
+      for (const partID of load?.carriedDeltaParts.get(item.id) ?? []) {
+        if (!fetchedIDs.has(partID)) touched.delete(partID)
+      }
+      const parts = reconcileFetched(fetched, data.part[item.id] ?? [], { touched })
+      if (!parts.length) {
+        orphanParts.get(sessionID)?.delete(item.id)
+        setData(produce((draft) => deleteMessageParts(draft, item.id)))
+        continue
+      }
+      const partIDs = new Set(parts.map((part) => part.id))
+      setData(
+        "part_text_accum_delta",
+        produce((draft) => {
+          for (const part of data.part[item.id] ?? []) {
+            if (!partIDs.has(part.id) || !touched.has(part.id)) {
+              delete draft[part.id]
+              deltaBases.delete(part.id)
+            }
+          }
+        }),
+      )
+      setData("part", item.id, reconcile(parts, { key: "id" }))
+      orphanParts.get(sessionID)?.delete(item.id)
+    }
+  }
+
+  const applyMessagePage = (
+    sessionID: string,
+    page: MessagePage,
+    load: MessageLoadState | undefined,
+    preserveUnfetched: boolean | ((message: Message) => boolean),
+    cleanupOrphans: boolean,
+  ) => {
+    const merged = mergeOptimisticPage(page, [...(optimistic.get(sessionID)?.values() ?? [])])
+    merged.observed.forEach((item) => {
+      if (!load?.clearedMessageParts.has(item.messageID)) confirmOptimistic(sessionID, item.messageID, item.parts)
+    })
+    const touchedMessages = new Set([...(load?.touchedMessages ?? []), ...(removedMessages.get(sessionID) ?? [])])
+    const messages = reconcileFetched(merged.session, data.message[sessionID] ?? [], {
+      touched: touchedMessages,
+      retained: load?.retainedMessages,
+      preserveUnfetched,
+    })
+    batch(() => {
+      const messageIDs = replaceMessages(sessionID, messages)
+      replaceParts(sessionID, merged.part, messageIDs, load)
+      const orphans = orphanParts.get(sessionID)
+      if (cleanupOrphans && page.complete && orphans) {
+        for (const messageID of orphans) {
+          if (!messageIDs.has(messageID)) setData(produce((draft) => deleteMessageParts(draft, messageID)))
+        }
+        orphanParts.delete(sessionID)
+      }
+      setMeta("limit", sessionID, messages.length)
+      setMeta("cursor", sessionID, merged.cursor)
+      setMeta("complete", sessionID, merged.complete)
+      setMeta("at", sessionID, Date.now())
+    })
+  }
+
   const loadMessages = async (sessionID: string, limit: number, before?: string, mode?: "replace" | "prepend") => {
     if (meta.loading[sessionID]) return
-    const generation = generations.get(sessionID) ?? 0
+    const active = generation(sessionID)
+    const load: MessageLoadState = {
+      touchedMessages: new Set(),
+      removedMessages: new Set(),
+      retainedMessages: new Set(),
+      touchedParts: new Map(),
+      deltaParts: new Map(),
+      carriedDeltaParts: new Map(),
+      removedParts: new Map(),
+      optimisticParts: new Map(),
+      orphanParents: new Set(),
+      clearedMessageParts: new Set(),
+    }
+    messageLoads.set(sessionID, load)
     setMeta("loading", sessionID, true)
-    await fetchMessages(sessionID, limit, before)
+    let applied = false
+    await fetchMessages(sessionID, limit, before, () => resetMessageLoad(sessionID, load))
       .then((page) => {
-        if ((generations.get(sessionID) ?? 0) !== generation) return
-        const next = mergeOptimisticPage(page, [...(optimistic.get(sessionID)?.values() ?? [])])
-        next.confirmed.forEach((messageID) => clearOptimistic(sessionID, messageID))
-        const messages = mode === "prepend" ? merge(data.message[sessionID] ?? [], next.session) : next.session
-        batch(() => {
-          setData("message", sessionID, reconcile(messages, { key: "id" }))
-          for (const item of next.part) {
-            const parts = item.part.filter((part) => !SKIP_PARTS.has(part.type))
-            if (parts.length) setData("part", item.id, reconcile(parts, { key: "id" }))
-          }
-          setMeta("limit", sessionID, messages.length)
-          setMeta("cursor", sessionID, next.cursor)
-          setMeta("complete", sessionID, next.complete)
-          setMeta("at", sessionID, Date.now())
-        })
+        if (generations.get(sessionID) !== active) return
+        const first = page.session.reduce<Message | undefined>(
+          (oldest, message) => (!oldest || cmpMessage(message, oldest) < 0 ? message : oldest),
+          undefined,
+        )
+        const preserveUnfetched =
+          mode === "prepend" || (!page.complete && (!first || ((message: Message) => cmpMessage(message, first) < 0)))
+        applyMessagePage(
+          sessionID,
+          page,
+          messageLoads.get(sessionID) === load ? load : undefined,
+          preserveUnfetched,
+          mode !== "prepend",
+        )
+        applied = true
       })
       .finally(() => {
-        if ((generations.get(sessionID) ?? 0) === generation) setMeta("loading", sessionID, false)
+        if (!applied && generations.get(sessionID) === active && messageLoads.get(sessionID) === load) {
+          for (const messageID of load.orphanParents) {
+            if (!orphanParts.get(sessionID)?.has(messageID)) continue
+            setData(produce((draft) => deleteMessageParts(draft, messageID)))
+            orphanParts.get(sessionID)?.delete(messageID)
+          }
+          if (orphanParts.get(sessionID)?.size === 0) orphanParts.delete(sessionID)
+        }
+        if (messageLoads.get(sessionID) === load) messageLoads.delete(sessionID)
+        if (generations.get(sessionID) === active) setMeta("loading", sessionID, false)
       })
   }
 
@@ -339,7 +660,13 @@ export function createServerSession(client: OpencodeClient) {
     const eventID = eventSessionID(event)
     if (eventID) {
       touch(eventID)
-      if (!data.info[eventID]) void resolve(eventID).catch(() => {})
+      if (
+        !data.info[eventID] &&
+        event.type !== "session.created" &&
+        event.type !== "session.updated" &&
+        event.type !== "session.deleted"
+      )
+        void resolve(eventID).catch(() => {})
     }
     switch (event.type) {
       case "session.created":
@@ -378,6 +705,21 @@ export function createServerSession(client: OpencodeClient) {
       }
       case "message.updated": {
         const info = cleanMessage((event.properties as { info: Message }).info)
+        const load = messageLoads.get(info.sessionID)
+        load?.touchedMessages.add(info.id)
+        load?.removedMessages.delete(info.id)
+        const items = optimistic.get(info.sessionID)
+        const item = items?.get(info.id)
+        if (items && item) {
+          if (item.parts.length === 0) clearOptimistic(info.sessionID, info.id)
+          if (item.parts.length > 0) items.set(info.id, { ...item, confirmedMessage: true })
+        }
+        const orphans = orphanParts.get(info.sessionID)
+        orphans?.delete(info.id)
+        if (orphans?.size === 0) orphanParts.delete(info.sessionID)
+        const removedMessagesForSession = removedMessages.get(info.sessionID)
+        removedMessagesForSession?.delete(info.id)
+        if (removedMessagesForSession?.size === 0) removedMessages.delete(info.sessionID)
         const messages = data.message[info.sessionID]
         if (!messages) {
           setData("message", info.sessionID, [info])
@@ -395,6 +737,20 @@ export function createServerSession(client: OpencodeClient) {
       }
       case "message.removed": {
         const props = event.properties as { sessionID: string; messageID: string }
+        const load = messageLoads.get(props.sessionID)
+        load?.touchedMessages.add(props.messageID)
+        load?.removedMessages.add(props.messageID)
+        load?.clearedMessageParts.add(props.messageID)
+        load?.deltaParts.delete(props.messageID)
+        load?.carriedDeltaParts.delete(props.messageID)
+        load?.removedParts.delete(props.messageID)
+        load?.optimisticParts.delete(props.messageID)
+        pendingParts.get(props.sessionID)?.delete(props.messageID)
+        if (pendingParts.get(props.sessionID)?.size === 0) pendingParts.delete(props.sessionID)
+        const removedMessagesForSession = removedMessages.get(props.sessionID) ?? new Set<string>()
+        removedMessagesForSession.add(props.messageID)
+        removedMessages.set(props.sessionID, removedMessagesForSession)
+        clearOptimistic(props.sessionID, props.messageID)
         setData(
           produce((draft) => {
             const messages = draft.message[props.sessionID]
@@ -402,8 +758,7 @@ export function createServerSession(client: OpencodeClient) {
               const result = Binary.search(messages, props.messageID, (message) => message.id)
               if (result.found) messages.splice(result.index, 1)
             }
-            for (const part of draft.part[props.messageID] ?? []) delete draft.part_text_accum_delta[part.id]
-            delete draft.part[props.messageID]
+            deleteMessageParts(draft, props.messageID)
           }),
         )
         return
@@ -411,6 +766,42 @@ export function createServerSession(client: OpencodeClient) {
       case "message.part.updated": {
         const part = (event.properties as { part: Part }).part
         if (SKIP_PARTS.has(part.type)) return
+        const messages = data.message[part.sessionID]
+        const load = messageLoads.get(part.sessionID)
+        const missing = !messages || !Binary.search(messages, part.messageID, (message) => message.id).found
+        // Outside a page load, accepting a part without its ordered parent event would create an unbounded orphan.
+        if (
+          missing &&
+          (!load ||
+            load.clearedMessageParts.has(part.messageID) ||
+            removedMessages.get(part.sessionID)?.has(part.messageID))
+        )
+          return
+        if (missing) {
+          const orphans = orphanParts.get(part.sessionID) ?? new Set<string>()
+          orphans.add(part.messageID)
+          orphanParts.set(part.sessionID, orphans)
+          load?.orphanParents.add(part.messageID)
+        }
+        const deltas = load?.deltaParts.get(part.messageID)
+        deltas?.delete(part.id)
+        if (deltas?.size === 0) load?.deltaParts.delete(part.messageID)
+        const carried = load?.carriedDeltaParts.get(part.messageID)
+        carried?.delete(part.id)
+        if (carried?.size === 0) load?.carriedDeltaParts.delete(part.messageID)
+        const removed = load?.removedParts.get(part.messageID)
+        removed?.delete(part.id)
+        if (removed?.size === 0) load?.removedParts.delete(part.messageID)
+        const pending = pendingParts.get(part.sessionID)?.get(part.messageID)
+        pending?.delete(part.id)
+        if (pending?.size === 0) pendingParts.get(part.sessionID)?.delete(part.messageID)
+        if (pendingParts.get(part.sessionID)?.size === 0) pendingParts.delete(part.sessionID)
+        const optimistic = load?.optimisticParts.get(part.messageID)
+        optimistic?.delete(part.id)
+        if (optimistic?.size === 0) load?.optimisticParts.delete(part.messageID)
+        deltaBases.delete(part.id)
+        trackPartChange(part.sessionID, part.messageID, part.id)
+        confirmOptimisticPart(part.sessionID, part.messageID, part)
         setData(
           "part_text_accum_delta",
           produce((draft) => void delete draft[part.id]),
@@ -431,10 +822,34 @@ export function createServerSession(client: OpencodeClient) {
         return
       }
       case "message.part.removed": {
-        const props = event.properties as { messageID: string; partID: string }
+        const props = event.properties as { sessionID: string; messageID: string; partID: string }
+        // Part removal is event-only on the server, so its tombstone lasts until a later update or eviction.
+        const pending = pendingParts.get(props.sessionID) ?? new Map<string, Set<string>>()
+        const parts = pending.get(props.messageID) ?? new Set<string>()
+        parts.add(props.partID)
+        pending.set(props.messageID, parts)
+        pendingParts.set(props.sessionID, pending)
+        const deltas = messageLoads.get(props.sessionID)?.deltaParts.get(props.messageID)
+        deltas?.delete(props.partID)
+        if (deltas?.size === 0) messageLoads.get(props.sessionID)?.deltaParts.delete(props.messageID)
+        const load = messageLoads.get(props.sessionID)
+        const carried = load?.carriedDeltaParts.get(props.messageID)
+        carried?.delete(props.partID)
+        if (carried?.size === 0) load?.carriedDeltaParts.delete(props.messageID)
+        if (load) {
+          const parts = load.removedParts.get(props.messageID) ?? new Set<string>()
+          parts.add(props.partID)
+          load.removedParts.set(props.messageID, parts)
+          const optimistic = load.optimisticParts.get(props.messageID)
+          optimistic?.delete(props.partID)
+          if (optimistic?.size === 0) load.optimisticParts.delete(props.messageID)
+        }
+        trackPartChange(props.sessionID, props.messageID, props.partID)
+        clearOptimisticPart(props.sessionID, props.messageID, props.partID)
         setData(
           produce((draft) => {
             delete draft.part_text_accum_delta[props.partID]
+            deltaBases.delete(props.partID)
             const parts = draft.part[props.messageID]
             if (!parts) return
             const result = Binary.search(parts, props.partID, (part) => part.id)
@@ -445,13 +860,31 @@ export function createServerSession(client: OpencodeClient) {
         return
       }
       case "message.part.delta": {
-        const props = event.properties as { messageID: string; partID: string; field: string; delta: string }
+        const props = event.properties as {
+          sessionID: string
+          messageID: string
+          partID: string
+          field: string
+          delta: string
+        }
         const parts = data.part[props.messageID]
         if (!parts) return
         const result = Binary.search(parts, props.partID, (part) => part.id)
         if (!result.found) return
+        trackPartChange(props.sessionID, props.messageID, props.partID)
+        const load = messageLoads.get(props.sessionID)
+        if (load) {
+          const parts = load.deltaParts.get(props.messageID) ?? new Set<string>()
+          parts.add(props.partID)
+          load.deltaParts.set(props.messageID, parts)
+          const carried = load.carriedDeltaParts.get(props.messageID)
+          carried?.delete(props.partID)
+          if (carried?.size === 0) load.carriedDeltaParts.delete(props.messageID)
+        }
         const field = props.field as keyof (typeof parts)[number]
         const current = parts[result.index]?.[field]
+        if (!deltaBases.has(props.partID) && typeof current === "string")
+          deltaBases.set(props.partID, { base: current, sessionID: props.sessionID })
         setData(
           "part_text_accum_delta",
           props.partID,
@@ -559,32 +992,70 @@ export function createServerSession(client: OpencodeClient) {
     },
     optimistic: {
       add(input: { sessionID: string; message: Message; parts: Part[] }) {
+        const parts = input.parts
+          .filter((part) => !!part?.id && !SKIP_PARTS.has(part.type))
+          .sort((a, b) => cmp(a.id, b.id))
+        const load = messageLoads.get(input.sessionID)
+        if (load?.clearedMessageParts.has(input.message.id)) {
+          const touched = load.touchedParts.get(input.message.id) ?? new Set<string>()
+          parts.forEach((part) => touched.add(part.id))
+          load.touchedParts.set(input.message.id, touched)
+        }
+        if (load) {
+          load.removedMessages.delete(input.message.id)
+          load.optimisticParts.set(input.message.id, new Set(parts.map((part) => part.id)))
+        }
         const items = optimistic.get(input.sessionID)
-        if (items) items.set(input.message.id, input)
-        if (!items) optimistic.set(input.sessionID, new Map([[input.message.id, input]]))
+        const removedMessagesForSession = removedMessages.get(input.sessionID)
+        removedMessagesForSession?.delete(input.message.id)
+        if (removedMessagesForSession?.size === 0) removedMessages.delete(input.sessionID)
+        if (items) items.set(input.message.id, { ...input, parts, confirmedParts: [] })
+        if (!items)
+          optimistic.set(input.sessionID, new Map([[input.message.id, { ...input, parts, confirmedParts: [] }]]))
         setData("message", input.sessionID, (messages = []) => merge(messages, [input.message]))
         setData(
-          "part",
-          input.message.id,
-          input.parts.filter((part) => !!part?.id).sort((a, b) => cmp(a.id, b.id)),
+          "part_text_accum_delta",
+          produce((draft) => {
+            for (const part of [...(data.part[input.message.id] ?? []), ...parts]) {
+              delete draft[part.id]
+              deltaBases.delete(part.id)
+            }
+          }),
         )
+        setData("part", input.message.id, parts)
       },
       remove(input: { sessionID: string; messageID: string }) {
+        const item = optimistic.get(input.sessionID)?.get(input.messageID)
+        if (!item) return
+        messageLoads.get(input.sessionID)?.optimisticParts.delete(input.messageID)
         clearOptimistic(input.sessionID, input.messageID)
+        if (item.confirmedMessage) {
+          const partIDs = new Set(item.parts.map((part) => part.id))
+          setData(
+            produce((draft) => {
+              for (const part of item.parts) {
+                delete draft.part_text_accum_delta[part.id]
+                deltaBases.delete(part.id)
+              }
+              const parts = draft.part[input.messageID]
+              if (!parts) return
+              draft.part[input.messageID] = parts.filter((part) => !partIDs.has(part.id))
+              if (draft.part[input.messageID]?.length === 0) delete draft.part[input.messageID]
+            }),
+          )
+          return
+        }
         setData("message", input.sessionID, (messages) => messages?.filter((message) => message.id !== input.messageID))
-        setData(
-          "part",
-          produce((draft) => void delete draft[input.messageID]),
-        )
+        setData(produce((draft) => deleteMessageParts(draft, input.messageID)))
       },
     },
     diff(sessionID: string, options?: { force?: boolean }) {
       touch(sessionID)
       if (data.session_diff[sessionID] !== undefined && !options?.force) return Promise.resolve()
       return runInflight(inflightDiff, sessionID, () => {
-        const generation = generations.get(sessionID) ?? 0
+        const active = generation(sessionID)
         return retry(() => client.session.diff({ sessionID })).then((result) => {
-          if ((generations.get(sessionID) ?? 0) !== generation) return
+          if (generations.get(sessionID) !== active) return
           setData("session_diff", sessionID, reconcile(cleanDiffs(result.data), { key: "file" }))
         })
       })
@@ -593,9 +1064,9 @@ export function createServerSession(client: OpencodeClient) {
       touch(sessionID)
       if (data.todo[sessionID] !== undefined && !options?.force) return Promise.resolve()
       return runInflight(inflightTodo, sessionID, () => {
-        const generation = generations.get(sessionID) ?? 0
+        const active = generation(sessionID)
         return retry(() => client.session.todo({ sessionID })).then((result) => {
-          if ((generations.get(sessionID) ?? 0) !== generation) return
+          if (generations.get(sessionID) !== active) return
           setData("todo", sessionID, reconcile(result.data ?? [], { key: "id" }))
         })
       })

packages/app/src/context/tabs.tsx

@@ -163,12 +163,14 @@ export const { use: useTabs, provider: TabsProvider } = createSimpleContext({
       },
       newDraft(draft: Omit<DraftTab, "type" | "draftID">, prompt?: string) {
         const draftID = uuid()
-        setStore(
-          produce((tabs) => {
-            tabs.push({ type: "draft", draftID, ...draft })
-          }),
-        )
-        navigate(prompt ? `${draftHref(draftID)}&prompt=${encodeURIComponent(prompt)}` : draftHref(draftID))
+        void startTransition(() => {
+          setStore(
+            produce((tabs) => {
+              tabs.push({ type: "draft", draftID, ...draft })
+            }),
+          )
+          navigate(prompt ? `${draftHref(draftID)}&prompt=${encodeURIComponent(prompt)}` : draftHref(draftID))
+        })
       },
       updateDraft(draftID: string, draft: Partial<Omit<DraftTab, "type" | "draftID">>) {
         setStore(
@@ -177,13 +179,11 @@ export const { use: useTabs, provider: TabsProvider } = createSimpleContext({
         )
       },
       promoteDraft(draftID: string, session: Omit<SessionTab, "type">) {
-        // We're viewing this draft when /new-session?draftId=… points at it. Promoting
-        // replaces the draft tab with a session tab, so the draft route would stop resolving
-        // and fall back home. Navigate to the new session first so we leave /new-session
-        // before the draft is removed from the store.
+        // Keep the replacement and navigation atomic so /new-session never renders
+        // after its backing draft tab has been removed from the store.
         const active = location.pathname === "/new-session" && location.query.draftId === draftID
         const next = { type: "session" as const, ...session }
-        startTransition(() => {
+        void startTransition(() => {
           setStore(
             produce((tabs) => {
               const index = tabs.findIndex((tab) => tab.type === "draft" && tab.draftID === draftID)

packages/app/src/i18n/en.ts

@@ -656,6 +656,10 @@ export const dict = {
   "session.new.worktree.main": "Main branch",
   "session.new.worktree.mainWithBranch": "Main branch ({{branch}})",
   "session.new.worktree.create": "Create new worktree",
+  "session.new.workspace.runIn": "Run session in",
+  "session.new.workspace.triggerLocal": "Local",
+  "session.new.workspace.local": "Local repository",
+  "session.new.workspace.existing": "Workspace…",
   "session.new.lastModified": "Last modified",
 
   "session.header.search.placeholder": "Search {{project}}",

packages/app/src/index.css

@@ -1,6 +1,7 @@
 @import "@opencode-ai/ui/styles/tailwind";
 @import "@opencode-ai/session-ui/styles";
 @import "@opencode-ai/ui/v2/styles/tailwind.css";
+@import "tw-animate-css";
 
 @font-face {
   font-family: "JetBrainsMono Nerd Font Mono";
@@ -131,13 +132,4 @@
       transform: rotate(360deg);
     }
   }
-
-  @keyframes fade-in {
-    from {
-      opacity: 0;
-    }
-    to {
-      opacity: 1;
-    }
-  }
 }

packages/app/src/pages/home.tsx

@@ -1,8 +1,8 @@
 import type { Session } from "@opencode-ai/sdk/v2/client"
 import {
-  batch,
   createEffect,
   createMemo,
+  createResource,
   createRoot,
   For,
   Match,
@@ -26,7 +26,7 @@ import { Icon as IconV2 } from "@opencode-ai/ui/v2/icon"
 import { IconButtonV2 } from "@opencode-ai/ui/v2/icon-button-v2"
 import { MenuV2 } from "@opencode-ai/ui/v2/menu-v2"
 import { TooltipV2 } from "@opencode-ai/ui/v2/tooltip-v2"
-import { getProjectAvatarVariant, useLayout, type LocalProject } from "@/context/layout"
+import { getProjectAvatarVariant, useLayout, type HomeProjectSelection, type LocalProject } from "@/context/layout"
 import { useNavigate } from "@solidjs/router"
 import { base64Encode } from "@opencode-ai/core/util/encode"
 import { Icon } from "@opencode-ai/ui/icon"
@@ -34,6 +34,7 @@ import { usePlatform } from "@/context/platform"
 import { DateTime } from "luxon"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { useDirectoryPicker } from "@/components/directory-picker"
+import { useSettingsCommand } from "@/components/settings-dialog"
 import { DialogSelectServer, useServerManagementController } from "@/components/dialog-select-server"
 import { DialogServerV2 } from "@/components/settings-v2/dialog-server-v2"
 import { ServerConnection, serverName, useServer } from "@/context/server"
@@ -47,7 +48,6 @@ import {
   errorMessage,
   getProjectAvatarSource,
   homeProjectDirectories,
-  type HomeProjectSelection,
   projectForSession,
   sortedRootSessions,
   toggleHomeProjectSelection,
@@ -68,6 +68,7 @@ import { archiveHomeSession } from "./home-session-archive"
 import { showToast } from "@/utils/toast"
 
 const HOME_SESSION_LIMIT = 64
+const SHOW_HOME_SESSION_ARCHIVE = false
 const HOME_ROW_LAYOUT =
   "flex min-w-0 w-full shrink-0 cursor-default items-center rounded-[6px] bg-transparent text-left transition-[background-color,color,box-shadow] duration-[120ms] ease-in-out focus-visible:outline-none"
 const HOME_ROW_BASE = `${HOME_ROW_LAYOUT} border-0`
@@ -146,15 +147,16 @@ export function NewHome() {
   const command = useCommand()
   const notification = useNotification()
   const marked = useMarked()
+  const openSettings = useSettingsCommand()
   let focusSessionSearch: (() => void) | undefined
   const [state, setState] = createStore({
     search: "",
-    selection: { server: server.key } as HomeProjectSelection,
     searchFocused: false,
   })
+  const selection = layout.home.selection
 
   const focusedServer = createMemo(
-    () => global.servers.list().find((conn) => ServerConnection.key(conn) === state.selection.server) ?? server.current,
+    () => global.servers.list().find((conn) => ServerConnection.key(conn) === selection().server) ?? server.current,
   )
   const focusedServerCtx = createMemo(() => {
     const conn = focusedServer()
@@ -163,7 +165,7 @@ export function NewHome() {
   })
   const focusedSync = () => focusedServerCtx()?.sync ?? sync()
   const projects = createMemo(() => focusedServerCtx()?.projects.list() ?? layout.projects.list())
-  const selectedProject = createMemo(() => projects().find((project) => project.worktree === state.selection.directory))
+  const selectedProject = createMemo(() => projects().find((project) => project.worktree === selection().directory))
   const newSessionProject = createMemo(
     () =>
       selectedProject() ??
@@ -191,7 +193,7 @@ export function NewHome() {
     return language.t("home.sessions.search.placeholder")
   })
   const sessionLoad = useQuery(() => ({
-    queryKey: ["home", "sessions", state.selection.server, ...projectDirectories()] as const,
+    queryKey: ["home", "sessions", selection().server, ...projectDirectories()] as const,
     queryFn: async () => {
       await Promise.all(
         projectDirectories().map((directory) =>
@@ -257,10 +259,7 @@ export function NewHome() {
   })
 
   function setSelection(next: HomeProjectSelection) {
-    batch(() => {
-      if (state.selection.server !== next.server) setState("selection", "server", next.server)
-      if (state.selection.directory !== next.directory) setState("selection", "directory", next.directory)
-    })
+    layout.home.setSelection(next)
   }
 
   function closeSearch() {
@@ -285,7 +284,7 @@ export function NewHome() {
 
   createEffect(() => {
     const list = global.servers.list()
-    if (list.some((conn) => ServerConnection.key(conn) === state.selection.server)) return
+    if (list.some((conn) => ServerConnection.key(conn) === selection().server)) return
     const conn = list.find((conn) => ServerConnection.key(conn) === server.key) ?? list[0]
     if (conn) setSelection({ server: ServerConnection.key(conn) })
   })
@@ -310,7 +309,7 @@ export function NewHome() {
         .some((project) => project.worktree === directory)
     )
       return
-    setSelection(toggleHomeProjectSelection(state.selection, key, directory))
+    setSelection(toggleHomeProjectSelection(selection(), key, directory))
   }
 
   function addProjects(conn: ServerConnection.Any, directories: string[]) {
@@ -343,15 +342,15 @@ export function NewHome() {
   }
 
   function unseenCount(conn: ServerConnection.Any, project: LocalProject) {
-    if (ServerConnection.key(conn) !== server.key) return 0
-    return directories(project).reduce((total, directory) => total + notification.project.unseenCount(directory), 0)
+    const state = notification.ensureServerState(ServerConnection.key(conn))
+    return directories(project).reduce((total, directory) => total + state.project.unseenCount(directory), 0)
   }
 
   function clearNotifications(conn: ServerConnection.Any, project: LocalProject) {
-    if (ServerConnection.key(conn) !== server.key) return
+    const state = notification.ensureServerState(ServerConnection.key(conn))
     directories(project)
-      .filter((directory) => notification.project.unseenCount(directory) > 0)
-      .forEach((directory) => notification.project.markViewed(directory))
+      .filter((directory) => state.project.unseenCount(directory) > 0)
+      .forEach((directory) => state.project.markViewed(directory))
   }
 
   function openSession(session: Session) {
@@ -407,18 +406,12 @@ export function NewHome() {
     })
   }
 
-  function openSettings() {
-    void import("@/components/settings-v2").then((x) => {
-      dialog.show(() => <x.DialogSettings />)
-    })
-  }
-
   return (
     <div class="rounded-[10px] shadow-[var(--v2-elevation-raised)] m-2 min-h-0 lg:overflow-hidden bg-v2-background-bg-base self-stretch flex-1">
-      <div class="mx-auto grid h-full w-full max-w-[1080px] grid-rows-[auto_minmax(0,1fr)_auto] gap-4 px-3 pb-3 lg:grid-cols-[280px_minmax(0,720px)] lg:grid-rows-1 lg:gap-8 lg:px-6 lg:pb-16">
+      <div class="mx-auto grid h-full w-full max-w-[1080px] grid-rows-[auto_minmax(0,1fr)_auto] gap-4 px-3 lg:grid-cols-[280px_minmax(0,720px)] lg:grid-rows-1 lg:gap-8 lg:px-6">
         <HomeProjectColumn
           projects={projects()}
-          selected={state.selection}
+          selected={selection()}
           focusServer={focusServer}
           selectProject={selectProject}
           openNewSession={openProjectNewSession}
@@ -426,7 +419,7 @@ export function NewHome() {
           editProject={editProject}
           closeProject={(conn, directory) => {
             const next = closeHomeProject(
-              state.selection,
+              selection(),
               ServerConnection.key(conn),
               global.ensureServerCtx(conn).projects,
               directory,
@@ -451,8 +444,8 @@ export function NewHome() {
             loading={sessionLoad.isLoading}
             results={searchResults()}
             showProjectName={!selectedProject()}
-            server={state.selection.server}
-            activeServer={state.selection.server === server.key}
+            server={selection().server}
+            activeServer={selection().server === server.key}
             noResultsLabel={language.t("home.sessions.search.noResults", { query: search() })}
             bindFocus={(focus) => {
               focusSessionSearch = focus
@@ -462,7 +455,7 @@ export function NewHome() {
             onClose={closeSearch}
             onSelect={selectSearchSession}
           />
-          <ScrollView class="mt-3 min-h-0 flex-1">
+          <ScrollView class="mt-3 -mr-3 min-h-0 flex-1">
             <Show
               when={!sessionLoad.isLoading}
               fallback={
@@ -475,7 +468,7 @@ export function NewHome() {
                 when={groups().length > 0}
                 fallback={<HomeSessionsEmpty onNewSession={newSessionProject() ? openNewSession : undefined} />}
               >
-                <div class="pt-3 flex flex-col gap-6">
+                <div class="flex flex-col gap-6 pt-3 pr-3 pb-16">
                   <For each={groups()}>
                     {(group, index) => (
                       <div class="flex min-w-0 flex-col gap-4">
@@ -489,8 +482,8 @@ export function NewHome() {
                               <HomeSessionRow
                                 record={record}
                                 showProjectName={!selectedProject()}
-                                server={state.selection.server}
-                                activeServer={state.selection.server === server.key}
+                                server={selection().server}
+                                activeServer={selection().server === server.key}
                                 openSession={openSession}
                                 archiveSession={archiveSession}
                               />
@@ -534,10 +527,16 @@ function HomeProjectColumn(props: {
   const global = useGlobal()
   const dialog = useDialog()
   const controller = useServerManagementController({ navigateOnAdd: false })
-  const [state, setState] = persisted(
+  const [_state, setState, _, ready] = persisted(
     Persist.global("home.servers", ["home.servers.v1"]),
     createStore({ collapsed: {} as Record<string, boolean> }),
   )
+  const [state] = createResource(
+    () => ready.promise ?? Promise.resolve(),
+    (p) => p.then(() => _state),
+    { initialValue: _state },
+  )
+
   return (
     <aside
       class="mt-6 flex min-w-0 flex-col gap-4 lg:mt-14 lg:pt-[52px]"
@@ -569,7 +568,7 @@ function HomeProjectColumn(props: {
             const key = ServerConnection.key(item)
             const healthy = () => !!global.servers.health[key]?.healthy
             const serverCtx = global.ensureServerCtx(item)
-            const collapsed = () => !!state.collapsed[key]
+            const collapsed = () => !!state().collapsed[key]
             return (
               <div class="flex max-h-[min(572px,calc(100vh_-_300px))] min-w-0 flex-col gap-1 overflow-y-auto [scrollbar-width:none] [&::-webkit-scrollbar]:hidden">
                 <HomeServerRow
@@ -582,7 +581,7 @@ function HomeProjectColumn(props: {
                   focusServer={props.focusServer}
                   chooseProject={props.chooseProject}
                   openEdit={(server) => dialog.show(() => <DialogServerV2 mode="edit" server={server} />)}
-                  toggleCollapsed={() => setState("collapsed", key, !state.collapsed[key])}
+                  toggleCollapsed={() => setState("collapsed", key, !state().collapsed[key])}
                   language={props.language}
                 />
                 <Show when={healthy() && !collapsed()}>
@@ -957,7 +956,7 @@ function HomeSessionSearch(props: {
   )
 
   return (
-    <div class="mr-2 w-[calc(100%_-_8px)]">
+    <div class="w-full">
       <div ref={root} data-component="home-session-search" class="relative z-10 w-full">
         <Show when={props.open}>
           <div
@@ -966,7 +965,7 @@ function HomeSessionSearch(props: {
             style={{
               top: "-6px",
               left: "-6px",
-              width: "calc(100% + 14px)",
+              width: "calc(100% + 12px)",
             }}
           >
             <div class="flex flex-col pt-9">
@@ -1134,7 +1133,7 @@ function HomeSessionSearchResultRow(props: {
 function HomeSessionGroupHeader(props: { title: string; onNewSession?: () => void }) {
   const language = useLanguage()
   return (
-    <div class="flex h-7 min-w-0 items-center justify-between pl-[18px] pr-2">
+    <div class="flex h-7 min-w-0 items-center justify-between pl-3">
       <div class={HOME_SECTION_LABEL}>{props.title}</div>
       <Show when={props.onNewSession}>
         {(onNewSession) => (
@@ -1191,22 +1190,24 @@ function HomeSessionRow(props: {
           </span>
         </Show>
       </button>
-      <div class="hover-reveal absolute right-1.5 top-1/2 flex -translate-y-1/2 items-center gap-1 group-hover/session:opacity-100 focus-within:opacity-100">
-        <TooltipV2 class="flex shrink-0 items-center" placement="bottom" value={language.t("common.archive")}>
-          <IconButtonV2
-            data-action="home-session-archive"
-            variant="ghost-muted"
-            size="large"
-            icon={<IconV2 name="archive" />}
-            aria-label={language.t("common.archive")}
-            onClick={(event) => {
-              event.preventDefault()
-              event.stopPropagation()
-              void props.archiveSession(props.record.session)
-            }}
-          />
-        </TooltipV2>
-      </div>
+      <Show when={SHOW_HOME_SESSION_ARCHIVE}>
+        <div class="hover-reveal absolute right-1.5 top-1/2 flex -translate-y-1/2 items-center gap-1 group-hover/session:opacity-100 focus-within:opacity-100">
+          <TooltipV2 class="flex shrink-0 items-center" placement="bottom" value={language.t("common.archive")}>
+            <IconButtonV2
+              data-action="home-session-archive"
+              variant="ghost-muted"
+              size="large"
+              icon={<IconV2 name="archive" />}
+              aria-label={language.t("common.archive")}
+              onClick={(event) => {
+                event.preventDefault()
+                event.stopPropagation()
+                void props.archiveSession(props.record.session)
+              }}
+            />
+          </TooltipV2>
+        </div>
+      </Show>
     </div>
   )
 }

packages/app/src/pages/layout-new.tsx

@@ -1,26 +1,18 @@
 import { createEffect, Suspense, type ParentProps } from "solid-js"
-import { useNavigate, useParams } from "@solidjs/router"
+import { useNavigate } from "@solidjs/router"
 import { DebugBar } from "@/components/debug-bar"
 import { HelpButton } from "@/components/help-button"
 import { Titlebar, type TitlebarUpdate } from "@/components/titlebar"
-import { useNotification } from "@/context/notification"
 import { usePlatform } from "@/context/platform"
 import { setNavigate } from "@/utils/notification-click"
 import { setV2Toast, ToastRegion } from "@/utils/toast"
 
 export default function NewLayout(props: ParentProps) {
   const platform = usePlatform()
-  const notification = useNotification()
   const navigate = useNavigate()
-  const params = useParams<{ id?: string }>()
   setNavigate(navigate)
 
   createEffect(() => setV2Toast(true))
-  createEffect(() => {
-    if (!notification.ready() || !params.id) return
-    if (notification.session.unseenCount(params.id) === 0) return
-    notification.session.markViewed(params.id)
-  })
 
   const update: TitlebarUpdate = {
     version: () => {
@@ -44,7 +36,7 @@ export default function NewLayout(props: ParentProps) {
       <main class="flex-1 min-h-0 min-w-0 overflow-x-hidden flex flex-col items-start contain-strict">
         <Suspense>{props.children}</Suspense>
       </main>
-      {import.meta.env.DEV && <DebugBar />}
+      {import.meta.env.DEV && <DebugBar inline />}
       <HelpButton />
       <ToastRegion v2 />
     </div>

packages/app/src/pages/layout/helpers.ts

@@ -2,6 +2,7 @@ import { getFilename } from "@opencode-ai/core/util/path"
 import { type Session } from "@opencode-ai/sdk/v2/client"
 import { pathKey } from "@/utils/path-key"
 import type { ServerConnection } from "@/context/server"
+import type { HomeProjectSelection } from "@/context/layout"
 
 type SessionStore = {
   session?: Session[]
@@ -56,8 +57,6 @@ export const childSessionOnPath = (sessions: Session[] | undefined, rootID: stri
 export const displayName = (project: { name?: string; worktree: string }) =>
   project.name || getFilename(project.worktree) || project.worktree
 
-export type HomeProjectSelection = { server: ServerConnection.Key; directory?: string }
-
 export function toggleHomeProjectSelection(
   current: HomeProjectSelection | undefined,
   server: ServerConnection.Key,

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

@@ -1,18 +1,27 @@
-import { createEffect, createMemo, onMount, untrack } from "solid-js"
+import { Show, createEffect, createMemo, createResource, untrack } from "solid-js"
 import { createStore } from "solid-js/store"
 import { useSearchParams } from "@solidjs/router"
 import { NewSessionDesignView } from "@/components/session"
+import { PromptInput } from "@/components/prompt-input"
+import { useSettingsCommand } from "@/components/settings-dialog"
+import {
+  PromptProjectAddButton,
+  PromptProjectSelector,
+  createPromptProjectController,
+} from "@/components/prompt-project-selector"
 import { useComments } from "@/context/comments"
 import { usePrompt } from "@/context/prompt"
 import { useSDK } from "@/context/sdk"
 import { useSync } from "@/context/sync"
 import { useServerSync } from "@/context/server-sync"
-import {
-  createSessionComposerControls,
-  createSessionComposerState,
-  SessionComposerRegion,
-} from "@/pages/session/composer"
+import { useLanguage } from "@/context/language"
+import { createPromptInputController, createPromptProjectControls } from "@/pages/session/composer"
 import { useSessionKey } from "@/pages/session/session-layout"
+import { useComposerCommands } from "@/pages/session/use-composer-commands"
+import { NEW_SESSION_CONTENT_WIDTH } from "@/pages/session/new-session-layout"
+import { PromptWorkspaceSelector } from "@/components/prompt-workspace-selector"
+
+const showWorkspaceBar = import.meta.env.VITE_OPENCODE_CHANNEL !== "prod"
 
 /**
  * The `/new-session` draft page. Unlike `session.tsx`, this only renders the prompt
@@ -25,28 +34,41 @@ export default function NewSessionPage() {
   const sync = useSync()
   const serverSync = useServerSync()
   const comments = useComments()
+  const language = useLanguage()
   const route = useSessionKey()
-  const [searchParams, setSearchParams] = useSearchParams<{ prompt?: string }>()
+  const [searchParams, setSearchParams] = useSearchParams<{ draftId?: string; prompt?: string }>()
+
+  useComposerCommands()
+  useSettingsCommand()
 
   let inputRef: HTMLDivElement | undefined
 
-  const composer = createSessionComposerState()
-  const composerControls = createSessionComposerControls({
+  const inputController = createPromptInputController({
     sessionKey: route.sessionKey,
     sessionID: () => route.params.id,
     queryOptions: serverSync().queryOptions,
   })
-
-  const [store, setStore] = createStore({
-    worktree: "main",
+  const projectControls = createPromptProjectControls()
+  const projectController = createPromptProjectController({
+    controls: projectControls,
+    onDone: () => inputRef?.focus(),
   })
 
+  const [store, setStore] = createStore<{ worktree?: string }>({})
+
   const newSessionWorktree = createMemo(() => {
-    if (store.worktree === "create") return "create"
+    if (store.worktree) return store.worktree
     const project = sync().project
     if (project && sdk().directory !== project.worktree) return sdk().directory
     return "main"
   })
+  const projectRoot = createMemo(() => sync().project?.worktree ?? sdk().directory)
+  const localBranch = createMemo(() => serverSync().child(projectRoot())[0].vcs?.branch)
+  const selectedBranch = createMemo(() => {
+    const worktree = newSessionWorktree()
+    if (worktree === "main" || worktree === "create") return localBranch()
+    return serverSync().child(worktree)[0].vcs?.branch ?? localBranch()
+  })
 
   createEffect(() => {
     if (!prompt.ready()) return
@@ -58,9 +80,15 @@ export default function NewSessionPage() {
     })
   })
 
-  onMount(() => {
+  createEffect(() => {
+    if (!prompt.ready()) return
     requestAnimationFrame(() => inputRef?.focus())
   })
+  const ready = Promise.resolve()
+  const [promptReady] = createResource(
+    () => prompt.ready.promise ?? ready,
+    (promise) => promise.then(() => true),
+  )
 
   return (
     <div class="relative size-full overflow-hidden flex flex-col">
@@ -68,26 +96,65 @@ export default function NewSessionPage() {
         <div class="@container relative flex flex-col min-h-0 h-full bg-background-stronger flex-1">
           <div class="flex-1 min-h-0 overflow-hidden rounded-[10px]">
             <NewSessionDesignView>
-              <SessionComposerRegion
-                state={composer}
-                sessionKey={route.sessionKey()}
-                sessionID={route.params.id}
-                controls={composerControls()}
-                promptInput={{
-                  ref: (el) => {
-                    inputRef = el
-                  },
-                  newSessionWorktree: newSessionWorktree(),
-                  onNewSessionWorktreeReset: () => setStore("worktree", "main"),
-                  onSubmit: () => comments.clear(),
-                }}
-                todo={{ collapsed: false, onToggle: () => {} }}
-                ready
-                centered={false}
-                placement="inline"
-                onResponseSubmit={() => {}}
-                setPromptDockRef={() => {}}
-              />
+              <div class={NEW_SESSION_CONTENT_WIDTH}>
+                <Show
+                  when={prompt.ready() || promptReady()}
+                  fallback={
+                    <div class="w-full min-h-32 md:min-h-40 rounded-md border border-border-weak-base bg-background-base/50 px-4 py-3 text-text-weak pointer-events-none">
+                      {language.t("prompt.loading")}
+                    </div>
+                  }
+                >
+                  <div class="flex flex-col" classList={{ "gap-8": showWorkspaceBar, "gap-3": !showWorkspaceBar }}>
+                    <PromptInput
+                      controls={inputController()}
+                      variant="new-session"
+                      ref={(el) => {
+                        inputRef = el
+                      }}
+                      newSessionWorktree={newSessionWorktree()}
+                      onNewSessionWorktreeReset={() => setStore("worktree", undefined)}
+                      onSubmit={() => comments.clear()}
+                      toolbar={
+                        <Show when={!projectController.selected()}>
+                          <PromptProjectAddButton controller={projectController} />
+                        </Show>
+                      }
+                    />
+                    <Show when={projectController.selected()}>
+                      <div
+                        class="flex min-h-7 min-w-0 items-center gap-0 text-v2-text-text-faint"
+                        classList={{
+                          "flex-col justify-center sm:flex-row": showWorkspaceBar,
+                          "justify-start": !showWorkspaceBar,
+                        }}
+                      >
+                        <PromptProjectSelector
+                          controller={projectController}
+                          placement={showWorkspaceBar ? "bottom" : "bottom-start"}
+                        />
+                        <Show when={showWorkspaceBar}>
+                          <PromptWorkspaceSelector
+                            value={newSessionWorktree()}
+                            projectRoot={projectRoot()}
+                            workspaces={sync().project?.sandboxes ?? []}
+                            branch={selectedBranch()}
+                            onChange={(value) =>
+                              setStore(
+                                "worktree",
+                                value === "main" && sync().project?.worktree !== sdk().directory
+                                  ? sync().project?.worktree
+                                  : value,
+                              )
+                            }
+                            onDone={() => inputRef?.focus()}
+                          />
+                        </Show>
+                      </div>
+                    </Show>
+                  </div>
+                </Show>
+              </div>
             </NewSessionDesignView>
           </div>
         </div>

packages/app/src/pages/session.tsx

@@ -42,10 +42,13 @@ import { useServerSDK } from "@/context/server-sdk"
 import { useSettings } from "@/context/settings"
 import { useSync } from "@/context/sync"
 import { useTerminal } from "@/context/terminal"
+import { PromptInput } from "@/components/prompt-input"
+import { useSettingsCommand } from "@/components/settings-dialog"
 import { type FollowupDraft, sendFollowupDraft } from "@/components/prompt-input/submit"
 import {
-  createSessionComposerControls,
-  createSessionComposerState,
+  createPromptInputController,
+  createSessionComposerController,
+  createSessionComposerRegionController,
   SessionComposerRegion,
 } from "@/pages/session/composer"
 import {
@@ -63,6 +66,7 @@ import { useSessionLayout } from "@/pages/session/session-layout"
 import { syncSessionModel } from "@/pages/session/session-model-helpers"
 import { SessionSidePanel } from "@/pages/session/session-side-panel"
 import { TerminalPanel } from "@/pages/session/terminal-panel"
+import { useComposerCommands } from "@/pages/session/use-composer-commands"
 import { useSessionCommands } from "@/pages/session/use-session-commands"
 import { useSessionHashScroll } from "@/pages/session/use-session-hash-scroll"
 import { Identifier } from "@/utils/id"
@@ -155,8 +159,8 @@ export default function Page() {
     },
   })
 
-  const composer = createSessionComposerState()
-  const composerControls = createSessionComposerControls({
+  const composer = createSessionComposerController()
+  const inputController = createPromptInputController({
     sessionKey,
     sessionID: () => params.id,
     queryOptions: serverSync().queryOptions,
@@ -783,6 +787,8 @@ export default function Page() {
     inputRef?.focus()
   }
 
+  useComposerCommands()
+  useSettingsCommand()
   useSessionCommands({
     navigateMessageByOffset,
     setActiveMessage,
@@ -902,7 +908,13 @@ export default function Page() {
   )
 
   const reviewPanel = () => (
-    <div class="flex flex-col h-full overflow-hidden bg-background-stronger contain-strict">
+    <div
+      classList={{
+        "flex flex-col h-full overflow-hidden contain-strict": true,
+        "bg-v2-background-bg-base": settings.general.newLayoutDesigns(),
+        "bg-background-stronger": !settings.general.newLayoutDesigns(),
+      }}
+    >
       <div class="relative pt-2 flex-1 min-h-0 overflow-hidden">
         {reviewContent({
           diffStyle: layout.review.diffStyle(),
@@ -1567,62 +1579,28 @@ export default function Page() {
 
   useUsageExceededDialogs()
 
-  const composerRegion = (placement: "dock" | "inline") => (
-    <SessionComposerRegion
-      state={composer}
-      sessionKey={sessionKey()}
-      sessionID={params.id}
-      controls={composerControls()}
-      promptInput={{
-        ref: (el) => {
-          inputRef = el
-        },
-        newSessionWorktree: newSessionWorktree(),
-        onNewSessionWorktreeReset: () => setStore("newSessionWorktree", "main"),
-        onSubmit: () => {
-          comments.clear()
-          resumeScroll()
-        },
-      }}
-      todo={{
-        collapsed: view().todoCollapsed.get(),
+  const composerRegion = () => {
+    const controller = createSessionComposerRegionController({
+      state: composer,
+      sessionKey,
+      sessionID: () => params.id,
+      prompt,
+      ready: () => !store.deferRender && messagesReady(),
+      centered,
+      todo: {
+        collapsed: () => view().todoCollapsed.get(),
         onToggle: () => view().todoCollapsed.set(!view().todoCollapsed.get()),
-      }}
-      ready={!store.deferRender && messagesReady()}
-      centered={placement === "dock" && centered()}
-      placement={placement}
-      openParent={() => {
-        const id = info()?.parentID
-        if (!id) return
-        navigate(
-          params.serverKey
-            ? sessionHref(requireServerKey(params.serverKey), id)
-            : legacySessionHref(sdk().directory, id),
-        )
-      }}
-      onResponseSubmit={resumeScroll}
-      followup={
+      },
+      followup: () =>
         params.id && !isChildSession()
           ? {
-              queue: queueEnabled,
               items: followupDock(),
               sending: sendingFollowup(),
-              edit: editingFollowup(),
-              onQueue: queueFollowup,
-              onAbort: () => {
-                const id = params.id
-                if (!id) return
-                setFollowup("paused", id, true)
-              },
-              onSend: (id) => {
-                void sendFollowup(params.id!, id, { manual: true })
-              },
+              onSend: (id) => void sendFollowup(params.id!, id, { manual: true }),
               onEdit: editFollowup,
-              onEditLoaded: clearFollowupEdit,
             }
-          : undefined
-      }
-      revert={
+          : undefined,
+      revert: () =>
         rolled().length > 0
           ? {
               items: rolled(),
@@ -1630,13 +1608,53 @@ export default function Page() {
               disabled: reverting(),
               onRestore: restore,
             }
-          : undefined
-      }
-      setPromptDockRef={(el) => {
+          : undefined,
+      onResponseSubmit: resumeScroll,
+      openParent: () => {
+        const id = info()?.parentID
+        if (!id) return
+        navigate(
+          params.serverKey
+            ? sessionHref(requireServerKey(params.serverKey), id)
+            : legacySessionHref(sdk().directory, id),
+        )
+      },
+      setPromptRef: (el) => {
+        inputRef = el
+      },
+      setDockRef: (el) => {
         promptDock = el
-      }}
-    />
-  )
+      },
+    })
+    return (
+      <SessionComposerRegion
+        controller={controller}
+        promptInput={
+          <PromptInput
+            controls={inputController()}
+            ref={(el) => {
+              inputRef = el
+            }}
+            newSessionWorktree={newSessionWorktree()}
+            onNewSessionWorktreeReset={() => setStore("newSessionWorktree", "main")}
+            onSubmit={() => {
+              comments.clear()
+              resumeScroll()
+            }}
+            edit={editingFollowup()}
+            onEditLoaded={clearFollowupEdit}
+            shouldQueue={queueEnabled}
+            onQueue={queueFollowup}
+            onAbort={() => {
+              const id = params.id
+              if (!id) return
+              setFollowup("paused", id, true)
+            }}
+          />
+        }
+      />
+    )
+  }
 
   const mobileTabs = (compact = false, bottom = false) => (
     <Tabs value={store.mobileTab} class="h-auto">
@@ -1701,7 +1719,9 @@ export default function Page() {
         >
           <div
             classList={{
-              "flex-1 min-h-0 flex flex-col bg-background-stronger": true,
+              "flex-1 min-h-0 flex flex-col": true,
+              "bg-v2-background-bg-base": settings.general.newLayoutDesigns(),
+              "bg-background-stronger": !settings.general.newLayoutDesigns(),
               "rounded-[10px] overflow-hidden": settings.general.newLayoutDesigns(),
               "shadow-[var(--v2-elevation-raised)]": settings.general.newLayoutDesigns() && !!params.id,
             }}
@@ -1773,7 +1793,7 @@ export default function Page() {
               </Switch>
             </div>
 
-            <Show when={(params.id || !newSessionDesign()) && !mobileChanges()}>{composerRegion("dock")}</Show>
+            <Show when={(params.id || !newSessionDesign()) && !mobileChanges()}>{(_) => composerRegion()}</Show>
             <Show when={!!params.id && mobileTabsBottom()}>{mobileTabs(true, true)}</Show>
           </div>
 

packages/app/src/pages/session/composer/index.ts

@@ -1,3 +1,4 @@
 export { SessionComposerRegion } from "./session-composer-region"
-export { createSessionComposerControls } from "./session-composer-controls"
-export { createSessionComposerState } from "./session-composer-state"
+export { createPromptInputController, createPromptProjectControls } from "./session-composer-controls"
+export { createSessionComposerController } from "./session-composer-state"
+export { createSessionComposerRegionController } from "./session-composer-region-controller"

packages/app/src/pages/session/composer/session-composer-controls.ts

@@ -3,88 +3,37 @@ import { createQuery } from "@tanstack/solid-query"
 import { useNavigate, useSearchParams } from "@solidjs/router"
 import { type Accessor, createMemo } from "solid-js"
 import type { PromptInputControls } from "@/components/prompt-input"
+import type { PromptProjectControls } from "@/components/prompt-project-selector"
 import { useDirectoryPicker } from "@/components/directory-picker"
 import { useGlobal } from "@/context/global"
 import { useLayout } from "@/context/layout"
 import { useLocal } from "@/context/local"
 import type { QueryOptionsApi } from "@/context/server-sync"
-import { ServerConnection, useServer } from "@/context/server"
+import { useServerSDK } from "@/context/server-sdk"
+import { serverName, ServerConnection, useServer } from "@/context/server"
 import { useSDK } from "@/context/sdk"
 import { useSettings } from "@/context/settings"
 import { useSync } from "@/context/sync"
-import { type DraftTab, useTabs } from "@/context/tabs"
+import { useTabs } from "@/context/tabs"
 import { useProviders } from "@/hooks/use-providers"
 import { pathKey } from "@/utils/path-key"
 
-export function createSessionComposerControls(input: {
+export function createPromptInputController(input: {
   sessionKey: Accessor<string>
   sessionID: Accessor<string | undefined>
   queryOptions: Pick<QueryOptionsApi, "agents" | "providers">
 }) {
-  const navigate = useNavigate()
   const layout = useLayout()
   const local = useLocal()
   const providers = useProviders()
   const settings = useSettings()
-  const server = useServer()
   const sync = useSync()
   const sdk = useSDK()
-  const tabs = useTabs()
-  const global = useGlobal()
-  const pickDirectory = useDirectoryPicker()
-  const [search] = useSearchParams<{ draftId?: string }>()
   const view = layout.view(input.sessionKey)
-
-  const draft = createMemo(() => {
-    if (!search.draftId) return
-    return tabs.store.find((tab): tab is DraftTab => tab.type === "draft" && tab.draftID === search.draftId)
-  })
-  const projectServer = createMemo(() => {
-    if (!search.draftId) return server.current
-    const target = draft()?.server
-    if (!target) return
-    return server.list.find((conn) => ServerConnection.key(conn) === target)
-  })
-  const projectServerCtx = createMemo(() => {
-    const conn = projectServer()
-    if (conn) return global.ensureServerCtx(conn)
-  })
-  const projects = createMemo(() =>
-    search.draftId ? (projectServerCtx()?.projects.list() ?? []) : layout.projects.list(),
-  )
   const agentsQuery = createQuery(() => input.queryOptions.agents(pathKey(sdk().directory)))
   const globalProvidersQuery = createQuery(() => input.queryOptions.providers(null))
   const providersQuery = createQuery(() => input.queryOptions.providers(pathKey(sdk().directory)))
 
-  const selectProject = (worktree: string) => {
-    const conn = projectServer()
-    const target = projectServerCtx()
-    if (search.draftId) {
-      if (!conn || !target) return
-      target.projects.open(worktree)
-      target.projects.touch(worktree)
-      tabs.updateDraft(search.draftId, { server: ServerConnection.key(conn), directory: worktree })
-      return
-    }
-
-    layout.projects.open(worktree)
-    server.projects.touch(worktree)
-    navigate(`/${base64Encode(worktree)}/session`)
-  }
-
-  const addProject = (title: string) => {
-    const conn = projectServer()
-    if (!conn) return
-    pickDirectory({
-      server: conn,
-      title,
-      onSelect: (result) => {
-        const directory = Array.isArray(result) ? result[0] : result
-        if (directory) selectProject(directory)
-      },
-    })
-  }
-
   return createMemo<PromptInputControls>(() => ({
     agents: {
       available: sync().data.agent,
@@ -99,12 +48,6 @@ export function createSessionComposerControls(input: {
       paid: providers.paid().length > 0,
       loading: agentsQuery.isLoading || providersQuery.isLoading || globalProvidersQuery.isLoading,
     },
-    projects: {
-      available: projects(),
-      directory: sdk().directory,
-      select: selectProject,
-      add: addProject,
-    },
     session: {
       id: input.sessionID(),
       tabs: layout.tabs(input.sessionKey),
@@ -113,3 +56,75 @@ export function createSessionComposerControls(input: {
     newLayoutDesigns: settings.general.newLayoutDesigns(),
   }))
 }
+
+export function createPromptProjectControls() {
+  const navigate = useNavigate()
+  const layout = useLayout()
+  const server = useServer()
+  const serverSDK = useServerSDK()
+  const sdk = useSDK()
+  const tabs = useTabs()
+  const global = useGlobal()
+  const pickDirectory = useDirectoryPicker()
+  const [search] = useSearchParams<{ draftId?: string }>()
+  const projectServer = () => serverSDK().server
+  const projectServerCtx = createMemo(() => global.ensureServerCtx(projectServer()))
+  const projects = createMemo(() => {
+    if (server.list.length <= 1) {
+      return search.draftId ? projectServerCtx().projects.list() : layout.projects.list()
+    }
+    return server.list.flatMap((conn) => {
+      const item = { key: ServerConnection.key(conn), name: serverName(conn) }
+      return global
+        .ensureServerCtx(conn)
+        .projects.list()
+        .map((project) => ({ ...project, server: item }))
+    })
+  })
+  const selectProject = (worktree: string, serverKey?: string) => {
+    const conn = serverKey ? server.list.find((conn) => ServerConnection.key(conn) === serverKey) : projectServer()
+    if (search.draftId) {
+      if (!conn) return
+      const target = global.ensureServerCtx(conn)
+      target.projects.open(worktree)
+      target.projects.touch(worktree)
+      tabs.updateDraft(search.draftId, { server: ServerConnection.key(conn), directory: worktree })
+      return
+    }
+
+    if (!serverKey) {
+      layout.projects.open(worktree)
+      server.projects.touch(worktree)
+      navigate(`/${base64Encode(worktree)}/session`)
+      return
+    }
+
+    if (!conn) return
+    const target = global.ensureServerCtx(conn)
+    target.projects.open(worktree)
+    target.projects.touch(worktree)
+    server.setActive(ServerConnection.key(conn))
+    navigate(`/${base64Encode(worktree)}/session`)
+  }
+
+  const addProject = (title: string, serverKey?: string) => {
+    const conn = serverKey ? server.list.find((conn) => ServerConnection.key(conn) === serverKey) : projectServer()
+    if (!conn) return
+    pickDirectory({
+      server: conn,
+      title,
+      onSelect: (result) => {
+        const directory = Array.isArray(result) ? result[0] : result
+        if (directory) selectProject(directory, serverKey)
+      },
+    })
+  }
+
+  return createMemo<PromptProjectControls>(() => ({
+    available: projects(),
+    directory: sdk().directory,
+    server: server.list.length > 1 ? ServerConnection.key(projectServer()) : undefined,
+    select: selectProject,
+    add: addProject,
+  }))
+}

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

@@ -0,0 +1,145 @@
+import { createResizeObserver } from "@solid-primitives/resize-observer"
+import { useSpring } from "@opencode-ai/ui/motion-spring"
+import { type Accessor, createEffect, createMemo, createResource, onCleanup } from "solid-js"
+import { createStore } from "solid-js/store"
+import type { PromptInputState } from "@/components/prompt-input"
+import { useSync } from "@/context/sync"
+import { getSessionHandoff, setSessionHandoff } from "@/pages/session/handoff"
+import type { SessionComposerController } from "./session-composer-state"
+
+export type SessionComposerFollowupDock = {
+  items: { id: string; text: string }[]
+  sending?: string
+  onSend: (id: string) => void
+  onEdit: (id: string) => void
+}
+
+export type SessionComposerRevertDock = {
+  items: { id: string; text: string }[]
+  restoring?: string
+  disabled?: boolean
+  onRestore: (id: string) => void
+}
+
+export function createSessionComposerRegionController(input: {
+  state: SessionComposerController
+  sessionKey: Accessor<string>
+  sessionID: Accessor<string | undefined>
+  prompt: PromptInputState
+  ready: Accessor<boolean>
+  centered: Accessor<boolean>
+  todo: {
+    collapsed: Accessor<boolean>
+    onToggle: () => void
+  }
+  followup: Accessor<SessionComposerFollowupDock | undefined>
+  revert: Accessor<SessionComposerRevertDock | undefined>
+  onResponseSubmit: () => void
+  openParent: () => void
+  setPromptRef: (el: HTMLDivElement) => void
+  setDockRef: (el: HTMLDivElement) => void
+}) {
+  const sync = useSync()
+  const [store, setStore] = createStore({
+    ready: input.ready() || input.state.dock(),
+    height: 320,
+    body: undefined as HTMLDivElement | undefined,
+  })
+  let timer: number | undefined
+  let frame: number | undefined
+
+  const clear = () => {
+    if (timer !== undefined) window.clearTimeout(timer)
+    if (frame !== undefined) cancelAnimationFrame(frame)
+    timer = undefined
+    frame = undefined
+  }
+
+  createEffect(() => {
+    input.sessionKey()
+    const ready = input.ready()
+    const dock = input.state.dock()
+
+    clear()
+    if (store.ready || (!ready && !dock)) return
+    if (dock) {
+      setStore("ready", true)
+      return
+    }
+
+    frame = requestAnimationFrame(() => {
+      frame = undefined
+      timer = window.setTimeout(() => {
+        setStore("ready", true)
+        timer = undefined
+      }, 140)
+    })
+  })
+
+  createEffect(() => {
+    if (!input.prompt.ready()) return
+    setSessionHandoff(input.sessionKey(), {
+      prompt: input.prompt
+        .current()
+        .map((part) => {
+          if (part.type === "file") return `[file:${part.path}]`
+          if (part.type === "agent") return `@${part.name}`
+          if (part.type === "image") return `[image:${part.filename}]`
+          return part.content
+        })
+        .join("")
+        .trim(),
+    })
+  })
+
+  createEffect(() => {
+    const el = store.body
+    if (!el) return
+    const update = () => setStore("height", el.getBoundingClientRect().height)
+    createResizeObserver(el, update)
+    update()
+  })
+
+  onCleanup(clear)
+
+  const parentID = createMemo(() => {
+    const id = input.sessionID()
+    return id ? sync().session.get(id)?.parentID : undefined
+  })
+  const open = createMemo(() => store.ready && input.state.dock() && !input.state.closing())
+  const progress = useSpring(
+    () => (open() ? 1 : 0),
+    { visualDuration: 0.3, bounce: 0 },
+    () => `${input.sessionKey()}\0${store.ready}`,
+  )
+  const value = createMemo(() => Math.max(0, Math.min(1, progress())))
+  const ready = Promise.resolve()
+  const [promptReady] = createResource(
+    () => input.prompt.ready.promise ?? ready,
+    (promise) => promise.then(() => true),
+  )
+
+  return {
+    state: input.state,
+    centered: input.centered,
+    todo: input.todo,
+    followup: input.followup,
+    revert: input.revert,
+    onResponseSubmit: input.onResponseSubmit,
+    openParent: input.openParent,
+    setPromptRef: input.setPromptRef,
+    setDockRef: input.setDockRef,
+    parentID,
+    child: () => !!parentID(),
+    showComposer: () => !input.state.blocked() || !!parentID(),
+    handoffPrompt: () => getSessionHandoff(input.sessionKey())?.prompt,
+    promptReady: () => input.prompt.ready() || promptReady(),
+    dock: () => (store.ready && input.state.dock()) || value() > 0.001,
+    dockProgress: value,
+    dockHeight: () => Math.max(78, store.height),
+    lift: () => (input.revert()?.items.length ? 18 : 36 * value()),
+    setDockBodyRef: (el: HTMLDivElement) => setStore("body", el),
+  }
+}
+
+export type SessionComposerRegionController = ReturnType<typeof createSessionComposerRegionController>

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

@@ -1,216 +1,89 @@
-import { Show, createEffect, createMemo, createResource, onCleanup } from "solid-js"
-import { createStore } from "solid-js/store"
-import { useSpring } from "@opencode-ai/ui/motion-spring"
-import { PromptInput, type PromptInputControls, type PromptInputProps } from "@/components/prompt-input"
+import { Show, type JSX } from "solid-js"
 import { useLanguage } from "@/context/language"
-import { usePrompt } from "@/context/prompt"
-import { useSync } from "@/context/sync"
-import { getSessionHandoff, setSessionHandoff } from "@/pages/session/handoff"
+import { useSettings } from "@/context/settings"
 import { SessionPermissionDock } from "@/pages/session/composer/session-permission-dock"
 import { SessionQuestionDock } from "@/pages/session/composer/session-question-dock"
 import { SessionFollowupDock } from "@/pages/session/composer/session-followup-dock"
 import { SessionRevertDock } from "@/pages/session/composer/session-revert-dock"
-import type { SessionComposerState } from "@/pages/session/composer/session-composer-state"
 import { SessionTodoDock } from "@/pages/session/composer/session-todo-dock"
-import type { FollowupDraft } from "@/components/prompt-input/submit"
-import { createResizeObserver } from "@solid-primitives/resize-observer"
-import { NEW_SESSION_CONTENT_WIDTH } from "@/pages/session/new-session-layout"
+import type { SessionComposerRegionController } from "./session-composer-region-controller"
 
 export function SessionComposerRegion(props: {
-  state: SessionComposerState
-  sessionKey: string
-  sessionID?: string
-  controls: PromptInputControls
-  promptInput: Omit<PromptInputProps, "controls" | "variant">
-  todo: {
-    collapsed: boolean
-    onToggle: () => void
-  }
-  ready: boolean
-  centered: boolean
-  placement?: "dock" | "inline"
-  openParent?: () => void
-  onResponseSubmit: () => void
-  followup?: {
-    queue: () => boolean
-    items: { id: string; text: string }[]
-    sending?: string
-    edit?: { id: string; prompt: FollowupDraft["prompt"]; context: FollowupDraft["context"] }
-    onQueue: (draft: FollowupDraft) => void
-    onAbort: () => void
-    onSend: (id: string) => void
-    onEdit: (id: string) => void
-    onEditLoaded: () => void
-  }
-  revert?: {
-    items: { id: string; text: string }[]
-    restoring?: string
-    disabled?: boolean
-    onRestore: (id: string) => void
-  }
-  setPromptDockRef: (el: HTMLDivElement) => void
+  controller: SessionComposerRegionController
+  promptInput: JSX.Element
 }) {
-  const prompt = props.promptInput.state ?? usePrompt()
   const language = useLanguage()
-  const sync = useSync()
-
-  const handoffPrompt = createMemo(() => getSessionHandoff(props.sessionKey)?.prompt)
-  const info = createMemo(() => (props.sessionID ? sync().session.get(props.sessionID) : undefined))
-  const parentID = createMemo(() => info()?.parentID)
-  const child = createMemo(() => !!parentID())
-  const showComposer = createMemo(() => !props.state.blocked() || child())
-
-  const previewPrompt = () =>
-    prompt
-      .current()
-      .map((part) => {
-        if (part.type === "file") return `[file:${part.path}]`
-        if (part.type === "agent") return `@${part.name}`
-        if (part.type === "image") return `[image:${part.filename}]`
-        return part.content
-      })
-      .join("")
-      .trim()
-
-  createEffect(() => {
-    if (!prompt.ready()) return
-    setSessionHandoff(props.sessionKey, { prompt: previewPrompt() })
-  })
-
-  const [store, setStore] = createStore({
-    ready: props.ready || props.state.dock(),
-    height: 320,
-    body: undefined as HTMLDivElement | undefined,
-  })
-  let timer: number | undefined
-  let frame: number | undefined
-
-  const clear = () => {
-    if (timer !== undefined) {
-      window.clearTimeout(timer)
-      timer = undefined
-    }
-    if (frame !== undefined) {
-      cancelAnimationFrame(frame)
-      frame = undefined
-    }
+  const controller = props.controller
+  const settings = useSettings()
+  const rolled = () => {
+    const revert = controller.revert()
+    return revert?.items.length ? revert : undefined
   }
 
-  createEffect(() => {
-    props.sessionKey
-    const ready = props.ready
-    const dock = props.state.dock()
-    const delay = 140
-
-    clear()
-    if (store.ready || (!ready && !dock)) return
-    if (dock) {
-      setStore("ready", true)
-      return
-    }
-
-    frame = requestAnimationFrame(() => {
-      frame = undefined
-      timer = window.setTimeout(() => {
-        setStore("ready", true)
-        timer = undefined
-      }, delay)
-    })
-  })
-
-  onCleanup(clear)
-
-  const open = createMemo(() => store.ready && props.state.dock() && !props.state.closing())
-  const progress = useSpring(
-    () => (open() ? 1 : 0),
-    { visualDuration: 0.3, bounce: 0 },
-    () => `${props.sessionKey}\0${store.ready}`,
-  )
-  const value = createMemo(() => Math.max(0, Math.min(1, progress())))
-  const dock = createMemo(() => (store.ready && props.state.dock()) || value() > 0.001)
-  const rolled = createMemo(() => (props.revert?.items.length ? props.revert : undefined))
-  const lift = createMemo(() => (rolled() ? 18 : 36 * value()))
-  const full = createMemo(() => Math.max(78, store.height))
-
-  createEffect(() => {
-    const el = store.body
-    if (!el) return
-    const update = () => setStore("height", el.getBoundingClientRect().height)
-    createResizeObserver(store.body, update)
-    update()
-  })
-
-  const ready = Promise.resolve()
-  const [promptReadyResource] = createResource(
-    () => prompt.ready.promise ?? ready,
-    (promise) => promise.then(() => true),
-  )
-
   return (
     <div
-      ref={props.setPromptDockRef}
+      ref={controller.setDockRef}
       data-component="session-prompt-dock"
       classList={{
-        "w-full flex flex-col justify-center items-center pointer-events-none": true,
-        "shrink-0 pb-3 bg-background-stronger": props.placement !== "inline",
+        "w-full shrink-0 flex flex-col justify-center items-center pb-3 pointer-events-none": true,
+        "bg-v2-background-bg-base": settings.general.newLayoutDesigns(),
+        "bg-background-stronger": !settings.general.newLayoutDesigns(),
       }}
     >
       <div
         classList={{
-          "w-full pointer-events-auto": true,
-          "px-3": props.placement !== "inline",
-          [NEW_SESSION_CONTENT_WIDTH]: props.placement === "inline",
-          "md:max-w-200 md:mx-auto 2xl:max-w-[1000px]": props.centered,
+          "w-full px-3 pointer-events-auto": true,
+          "md:max-w-200 md:mx-auto 2xl:max-w-[1000px]": controller.centered(),
         }}
       >
-        <Show when={props.state.questionRequest()} keyed>
+        <Show when={controller.state.questionRequest()} keyed>
           {(request) => (
             <div>
-              <SessionQuestionDock request={request} onSubmit={props.onResponseSubmit} />
+              <SessionQuestionDock request={request} onSubmit={controller.onResponseSubmit} />
             </div>
           )}
         </Show>
 
-        <Show when={props.state.permissionRequest()} keyed>
+        <Show when={controller.state.permissionRequest()} keyed>
           {(request) => (
             <div>
               <SessionPermissionDock
                 request={request}
-                responding={props.state.permissionResponding()}
+                responding={controller.state.permissionResponding()}
                 onDecide={(response) => {
-                  props.onResponseSubmit()
-                  props.state.decide(response)
+                  controller.onResponseSubmit()
+                  controller.state.decide(response)
                 }}
               />
             </div>
           )}
         </Show>
 
-        <Show when={showComposer()}>
-          <Show when={dock()}>
+        <Show when={controller.showComposer()}>
+          <Show when={controller.dock()}>
             <div
               classList={{
                 "overflow-hidden": true,
-                "pointer-events-none": value() < 0.98,
+                "pointer-events-none": controller.dockProgress() < 0.98,
               }}
               style={{
-                "max-height": `${full() * value()}px`,
+                "max-height": `${controller.dockHeight() * controller.dockProgress()}px`,
               }}
             >
-              <div ref={(el) => setStore("body", el)}>
+              <div ref={controller.setDockBodyRef}>
                 <SessionTodoDock
-                  todos={props.state.todos()}
-                  collapsed={props.todo.collapsed}
-                  onToggle={props.todo.onToggle}
+                  todos={controller.state.todos()}
+                  collapsed={controller.todo.collapsed()}
+                  onToggle={controller.todo.onToggle}
                   collapseLabel={language.t("session.todo.collapse")}
                   expandLabel={language.t("session.todo.expand")}
-                  dockProgress={value()}
+                  dockProgress={controller.dockProgress()}
                 />
               </div>
             </div>
           </Show>
           <Show
-            when={prompt.ready() || promptReadyResource()}
+            when={controller.promptReady()}
             fallback={
               <>
                 <Show when={rolled()} keyed>
@@ -227,9 +100,9 @@ export function SessionComposerRegion(props: {
                 </Show>
                 <div
                   class="w-full min-h-32 md:min-h-40 rounded-md border border-border-weak-base bg-background-base/50 px-4 py-3 text-text-weak whitespace-pre-wrap pointer-events-none"
-                  style={{ "margin-top": `${-36 * value()}px` }}
+                  style={{ "margin-top": `${-36 * controller.dockProgress()}px` }}
                 >
-                  {handoffPrompt() || language.t("prompt.loading")}
+                  {controller.handoffPrompt() || language.t("prompt.loading")}
                 </div>
               </>
             }
@@ -238,7 +111,7 @@ export function SessionComposerRegion(props: {
               {(revert) => (
                 <div
                   style={{
-                    "margin-top": `${-36 * value()}px`,
+                    "margin-top": `${-36 * controller.dockProgress()}px`,
                   }}
                 >
                   <SessionRevertDock
@@ -255,44 +128,31 @@ export function SessionComposerRegion(props: {
                 "relative z-30": true,
               }}
               style={{
-                "margin-top": `${-lift()}px`,
+                "margin-top": `${-controller.lift()}px`,
               }}
             >
-              <Show when={props.followup?.items.length}>
+              <Show when={controller.followup()?.items.length}>
                 <SessionFollowupDock
-                  items={props.followup!.items}
-                  sending={props.followup!.sending}
-                  onSend={props.followup!.onSend}
-                  onEdit={props.followup!.onEdit}
+                  items={controller.followup()!.items}
+                  sending={controller.followup()!.sending}
+                  onSend={controller.followup()!.onSend}
+                  onEdit={controller.followup()!.onEdit}
                 />
               </Show>
               <Show
-                when={child()}
-                fallback={
-                  <Show when={!props.state.blocked()}>
-                    <PromptInput
-                      {...props.promptInput}
-                      controls={props.controls}
-                      variant={props.placement === "inline" ? "new-session" : undefined}
-                      edit={props.followup?.edit}
-                      onEditLoaded={props.followup?.onEditLoaded}
-                      shouldQueue={props.followup?.queue}
-                      onQueue={props.followup?.onQueue}
-                      onAbort={props.followup?.onAbort}
-                    />
-                  </Show>
-                }
+                when={controller.child()}
+                fallback={<Show when={!controller.state.blocked()}>{props.promptInput}</Show>}
               >
                 <div
-                  ref={props.promptInput.ref}
+                  ref={controller.setPromptRef}
                   class="w-full rounded-[12px] border border-border-weak-base bg-background-base p-3 text-16-regular text-text-weak"
                 >
                   <span>{language.t("session.child.promptDisabled")} </span>
-                  <Show when={parentID() && props.openParent}>
+                  <Show when={controller.parentID()}>
                     <button
                       type="button"
                       class="text-text-base transition-colors hover:text-text-strong"
-                      onClick={props.openParent}
+                      onClick={controller.openParent}
                     >
                       {language.t("session.child.backToParent")}
                     </button>

packages/app/src/pages/session/composer/session-composer-state.ts

@@ -25,7 +25,7 @@ export const todoDockAtBoundary = (state: ReturnType<typeof todoState>) => state
 
 const idle = { type: "idle" as const }
 
-export function createSessionComposerState(options?: { closeMs?: number | (() => number) }) {
+export function createSessionComposerController(options?: { closeMs?: number | (() => number) }) {
   const params = useParams()
   const sdk = useSDK()
   const sync = useSync()
@@ -201,4 +201,4 @@ export function createSessionComposerState(options?: { closeMs?: number | (() =>
   }
 }
 
-export type SessionComposerState = ReturnType<typeof createSessionComposerState>
+export type SessionComposerController = ReturnType<typeof createSessionComposerController>

packages/app/src/pages/session/composer/session-question-dock.tsx

@@ -432,21 +432,23 @@ export const SessionQuestionDock: Component<{ request: QuestionRequest; onSubmit
       header={
         <>
           <div data-slot="question-header-title">{summary()}</div>
-          <div data-slot="question-progress">
-            <For each={questions()}>
-              {(_, i) => (
-                <button
-                  type="button"
-                  data-slot="question-progress-segment"
-                  data-active={i() === store.tab}
-                  data-answered={answered(i())}
-                  disabled={sending()}
-                  onClick={() => jump(i())}
-                  aria-label={`${language.t("ui.tool.questions")} ${i() + 1}`}
-                />
-              )}
-            </For>
-          </div>
+          <Show when={total() > 1}>
+            <div data-slot="question-progress">
+              <For each={questions()}>
+                {(_, i) => (
+                  <button
+                    type="button"
+                    data-slot="question-progress-segment"
+                    data-active={i() === store.tab}
+                    data-answered={answered(i())}
+                    disabled={sending()}
+                    onClick={() => jump(i())}
+                    aria-label={`${language.t("ui.tool.questions")} ${i() + 1}`}
+                  />
+                )}
+              </For>
+            </div>
+          </Show>
         </>
       }
       footer={

packages/app/src/pages/session/composer/todo-panel-motion.stories.tsx

@@ -3,7 +3,13 @@ import { createEffect, createMemo, onCleanup } from "solid-js"
 import { createStore } from "solid-js/store"
 import type { Todo } from "@opencode-ai/sdk/v2"
 import { useServerSync } from "@/context/global-sync"
-import { SessionComposerRegion, createSessionComposerState } from "@/pages/session/composer"
+import { PromptInput } from "@/components/prompt-input"
+import { usePrompt } from "@/context/prompt"
+import {
+  SessionComposerRegion,
+  createSessionComposerController,
+  createSessionComposerRegionController,
+} from "@/pages/session/composer"
 
 export default {
   title: "UI/Todo Panel Motion",
@@ -60,7 +66,6 @@ const controls = {
     paid: true,
     loading: false,
   },
-  projects: { available: [], directory: "/tmp/story", select: () => {}, add: () => {} },
   session: {
     id: "story-session",
     tabs: { active: () => undefined, all: () => [], open: () => {}, setActive: () => {} },
@@ -149,6 +154,7 @@ const css = `
 export const Playground = {
   render: () => {
     const global = useServerSync()
+    const prompt = usePrompt()
     const [cfg, setCfg] = createStore({
       open: true,
       collapsed: false,
@@ -188,7 +194,7 @@ export const Playground = {
     const countMask = () => cfg.countMask
     const countMaskHeight = () => cfg.countMaskHeight
     const countWidthDuration = () => cfg.countWidthDuration
-    const state = createSessionComposerState({ closeMs: () => Math.round(dockCloseDuration() * 1000) })
+    const state = createSessionComposerController({ closeMs: () => Math.round(dockCloseDuration() * 1000) })
     let frame
     let scrollRef
 
@@ -217,7 +223,6 @@ export const Playground = {
 
     const collapsed = () => cfg.collapsed
     const setCollapsed = (value: boolean) => setCfg("collapsed", value)
-
     const openDock = () => {
       clear()
       setCfg("open", true)
@@ -281,36 +286,30 @@ export const Playground = {
 
                 <div>
                   <SessionComposerRegion
-                    state={state}
-                    sessionKey="story-session"
-                    sessionID="story-session"
-                    controls={controls}
-                    promptInput={{
-                      submission: { abort: () => {}, handleSubmit: (event) => event.preventDefault() },
-                      ref: () => {},
-                      newSessionWorktree: "",
-                      onNewSessionWorktreeReset: () => {},
-                    }}
-                    todo={{ collapsed: collapsed(), onToggle: () => setCollapsed(!collapsed()) }}
-                    ready
-                    centered={false}
-                    onResponseSubmit={pin}
-                    setPromptDockRef={() => {}}
-                    dockOpenVisualDuration={dockOpenDuration()}
-                    dockOpenBounce={dockOpenBounce()}
-                    dockCloseVisualDuration={dockCloseDuration()}
-                    dockCloseBounce={dockCloseBounce()}
-                    drawerExpandVisualDuration={drawerExpandDuration()}
-                    drawerExpandBounce={drawerExpandBounce()}
-                    drawerCollapseVisualDuration={drawerCollapseDuration()}
-                    drawerCollapseBounce={drawerCollapseBounce()}
-                    subtitleDuration={subtitleDuration()}
-                    subtitleTravel={subtitleAuto() ? undefined : subtitleTravel()}
-                    subtitleEdge={subtitleAuto() ? undefined : subtitleEdge()}
-                    countDuration={countDuration()}
-                    countMask={countMask()}
-                    countMaskHeight={countMaskHeight()}
-                    countWidthDuration={countWidthDuration()}
+                    controller={createSessionComposerRegionController({
+                      state,
+                      sessionKey: () => "story-session",
+                      sessionID: () => "story-session",
+                      prompt,
+                      ready: () => true,
+                      centered: () => false,
+                      todo: { collapsed, onToggle: () => setCollapsed(!collapsed()) },
+                      followup: () => undefined,
+                      revert: () => undefined,
+                      onResponseSubmit: pin,
+                      openParent: () => {},
+                      setPromptRef: () => {},
+                      setDockRef: () => {},
+                    })}
+                    promptInput={
+                      <PromptInput
+                        controls={controls}
+                        submission={{ abort: () => {}, handleSubmit: (event) => event.preventDefault() }}
+                        ref={() => {}}
+                        newSessionWorktree=""
+                        onNewSessionWorktreeReset={() => {}}
+                      />
+                    }
                   />
                 </div>
               </div>

packages/app/src/pages/session/terminal-panel.tsx

@@ -293,7 +293,7 @@ export function TerminalPanel() {
                 </Tabs.List>
               </Tabs>
               <div class="flex-1 min-h-0 relative">
-                <Show when={terminal.active()} keyed>
+                <Show when={opened() && terminal.active()} keyed>
                   {(id) => {
                     const ops = terminal.bind()
                     return (

packages/app/src/pages/session/timeline/message-timeline.tsx

@@ -1019,7 +1019,13 @@ export function MessageTimeline(props: {
                 <div class="flex w-max min-w-full justify-end gap-2">
                   <Index each={comments()}>
                     {(comment) => (
-                      <div class="shrink-0 max-w-[260px] rounded-[6px] border border-border-weak-base bg-background-stronger px-2.5 py-2">
+                      <div
+                        classList={{
+                          "shrink-0 max-w-[260px] rounded-[6px] border-border-weak-base bg-background-stronger px-2.5 py-2": true,
+                          "border-[0.5px]": settings.general.newLayoutDesigns(),
+                          border: !settings.general.newLayoutDesigns(),
+                        }}
+                      >
                         <div class="flex items-center gap-1.5 min-w-0 text-11-medium text-text-strong">
                           <FileIcon node={{ path: comment().path, type: "file" }} class="size-3.5 shrink-0" />
                           <span class="truncate">{getFilename(comment().path)}</span>
@@ -1288,7 +1294,11 @@ export function MessageTimeline(props: {
           <div
             data-session-title
             classList={{
-              "sticky top-0 z-30 bg-[linear-gradient(to_bottom,var(--background-stronger)_48px,transparent)]": true,
+              "sticky top-0 z-30": true,
+              "bg-[linear-gradient(to_bottom,var(--v2-background-bg-base)_48px,transparent)]":
+                settings.general.newLayoutDesigns(),
+              "bg-[linear-gradient(to_bottom,var(--background-stronger)_48px,transparent)]":
+                !settings.general.newLayoutDesigns(),
               "w-full": true,
               "pb-4": true,
               "pr-3": true,
@@ -1509,7 +1519,11 @@ export function MessageTimeline(props: {
                                       <Button
                                         size="large"
                                         variant="secondary"
-                                        class="w-full shadow-none border border-border-weak-base"
+                                        class={
+                                          settings.general.newLayoutDesigns()
+                                            ? "w-full shadow-none border-[0.5px] border-border-weak-base"
+                                            : "w-full shadow-none border border-border-weak-base"
+                                        }
                                         onClick={unshareSession}
                                         disabled={unshareMutation.isPending}
                                       >

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

@@ -0,0 +1,69 @@
+import { useCommand, type CommandOption } from "@/context/command"
+import { useLanguage } from "@/context/language"
+import { useLocal } from "@/context/local"
+import { useSettings } from "@/context/settings"
+import { useDialog } from "@opencode-ai/ui/context/dialog"
+import { useSessionLayout } from "./session-layout"
+import { createSessionOwnership } from "./session-ownership"
+
+const withCategory = (category: string) => {
+  return (option: Omit<CommandOption, "category">): CommandOption => ({
+    ...option,
+    category,
+  })
+}
+
+export const useComposerCommands = () => {
+  const command = useCommand()
+  const dialog = useDialog()
+  const language = useLanguage()
+  const local = useLocal()
+  const settings = useSettings()
+  const { sessionKey } = useSessionLayout()
+  const sessionOwnership = createSessionOwnership(sessionKey)
+  const modelCommand = withCategory(language.t("command.category.model"))
+  const agentCommand = withCategory(language.t("command.category.agent"))
+
+  const chooseModel = async () => {
+    const owner = sessionOwnership.capture()
+    const { DialogSelectModel } = await import("@/components/dialog-select-model")
+    owner.run(() => {
+      void dialog.show(() => <DialogSelectModel model={local.model} />)
+    })
+  }
+
+  command.register("composer", () => [
+    modelCommand({
+      id: "model.choose",
+      title: language.t("command.model.choose"),
+      description: language.t("command.model.choose.description"),
+      keybind: "mod+'",
+      slash: "model",
+      onSelect: chooseModel,
+    }),
+    modelCommand({
+      id: "model.variant.cycle",
+      title: language.t("command.model.variant.cycle"),
+      description: language.t("command.model.variant.cycle.description"),
+      keybind: "shift+mod+d",
+      onSelect: () => local.model.variant.cycle(),
+    }),
+    agentCommand({
+      id: "agent.cycle",
+      title: language.t("command.agent.cycle"),
+      description: language.t("command.agent.cycle.description"),
+      keybind: "mod+.",
+      slash: "agent",
+      disabled: !settings.visibility.customAgents(),
+      onSelect: () => local.agent.move(1),
+    }),
+    agentCommand({
+      id: "agent.cycle.reverse",
+      title: language.t("command.agent.cycle.reverse"),
+      description: language.t("command.agent.cycle.reverse.description"),
+      keybind: "shift+mod+.",
+      disabled: !settings.visibility.customAgents(),
+      onSelect: () => local.agent.move(-1),
+    }),
+  ])
+}

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

@@ -136,9 +136,7 @@ export const useSessionCommands = (actions: SessionCommandContext) => {
   const contextCommand = withCategory(language.t("command.category.context"))
   const viewCommand = withCategory(language.t("command.category.view"))
   const terminalCommand = withCategory(language.t("command.category.terminal"))
-  const modelCommand = withCategory(language.t("command.category.model"))
   const mcpCommand = withCategory(language.t("command.category.mcp"))
-  const agentCommand = withCategory(language.t("command.category.agent"))
   const permissionsCommand = withCategory(language.t("command.category.permissions"))
 
   const isAutoAcceptActive = () => {
@@ -271,13 +269,6 @@ export const useSessionCommands = (actions: SessionCommandContext) => {
     view().terminal.open()
   }
 
-  const chooseModel = () => {
-    void openDialog(
-      () => import("@/components/dialog-select-model"),
-      (x) => dialog.show(() => <x.DialogSelectModel model={local.model} />),
-    )
-  }
-
   const chooseMcp = () => {
     void openDialog(
       () => import("@/components/dialog-select-mcp"),
@@ -555,24 +546,6 @@ export const useSessionCommands = (actions: SessionCommandContext) => {
     }),
   ]
 
-  const modelCmds = () => [
-    modelCommand({
-      id: "model.choose",
-      title: language.t("command.model.choose"),
-      description: language.t("command.model.choose.description"),
-      keybind: "mod+'",
-      slash: "model",
-      onSelect: chooseModel,
-    }),
-    modelCommand({
-      id: "model.variant.cycle",
-      title: language.t("command.model.variant.cycle"),
-      description: language.t("command.model.variant.cycle.description"),
-      keybind: "shift+mod+d",
-      onSelect: () => local.model.variant.cycle(),
-    }),
-  ]
-
   const mcpCmds = () => [
     mcpCommand({
       id: "mcp.toggle",
@@ -584,26 +557,6 @@ export const useSessionCommands = (actions: SessionCommandContext) => {
     }),
   ]
 
-  const agentCmds = () => [
-    agentCommand({
-      id: "agent.cycle",
-      title: language.t("command.agent.cycle"),
-      description: language.t("command.agent.cycle.description"),
-      keybind: "mod+.",
-      slash: "agent",
-      disabled: !settings.visibility.customAgents(),
-      onSelect: () => local.agent.move(1),
-    }),
-    agentCommand({
-      id: "agent.cycle.reverse",
-      title: language.t("command.agent.cycle.reverse"),
-      description: language.t("command.agent.cycle.reverse.description"),
-      keybind: "shift+mod+.",
-      disabled: !settings.visibility.customAgents(),
-      onSelect: () => local.agent.move(-1),
-    }),
-  ]
-
   const permissionsCmds = () => [
     permissionsCommand({
       id: "permissions.autoaccept",
@@ -624,9 +577,7 @@ export const useSessionCommands = (actions: SessionCommandContext) => {
     ...viewCmds(),
     ...terminalCmds(),
     ...messageCmds(),
-    ...modelCmds(),
     ...mcpCmds(),
-    ...agentCmds(),
     ...permissionsCmds(),
   ])
 }

packages/app/src/wsl/settings.tsx

@@ -1,7 +1,8 @@
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { Tag } from "@opencode-ai/ui/v2/badge-v2"
 import { ButtonV2 } from "@opencode-ai/ui/v2/button-v2"
-import { Dialog } from "@opencode-ai/ui/v2/dialog-v2"
+import { Dialog, DialogBody, DialogHeader, DialogTitle } from "@opencode-ai/ui/v2/dialog-v2"
+import { DividerV2 } from "@opencode-ai/ui/v2/divider-v2"
 import { Icon as IconV2 } from "@opencode-ai/ui/v2/icon"
 import { IconButtonV2 } from "@opencode-ai/ui/v2/icon-button-v2"
 import { MenuV2 } from "@opencode-ai/ui/v2/menu-v2"
@@ -30,8 +31,14 @@ export function AddServerMenu(props: { onAddServer: () => void }) {
   const language = useLanguage()
   const openAddWsl = () => {
     dialog.push(() => (
-      <Dialog title={language.t("wsl.server.add")} size="large" fit class="settings-v2-wsl-dialog">
-        <DialogAddWslServer />
+      <Dialog size="large" fit class="settings-v2-wsl-dialog">
+        <DialogHeader hideClose={true}>
+          <DialogTitle>{language.t("wsl.server.add")}</DialogTitle>
+        </DialogHeader>
+        <DividerV2 />
+        <DialogBody>
+          <DialogAddWslServer />
+        </DialogBody>
       </Dialog>
     ))
   }

packages/client/script/build.ts

@@ -1,20 +1,29 @@
 import { NodeFileSystem } from "@effect/platform-node"
 import { compile, emitEffectImported, emitPromise, write } from "@opencode-ai/httpapi-codegen"
-import { Api } from "@opencode-ai/server/api"
+import { ClientApi } from "../src/contract"
 import { Effect } from "effect"
-import { HttpApi } from "effect/unstable/httpapi"
 import { fileURLToPath } from "url"
 
-const contract = compile(HttpApi.make("opencode-client").add(Api.groups["server.session"]), {
-  groupNames: { "server.session": "sessions" },
+const contract = compile(ClientApi, {
+  groupNames: { "server.session": "sessions", "server.event": "events" },
 })
 
 await Effect.runPromise(
   Effect.all(
     [
-      write(emitPromise(contract), fileURLToPath(new URL("../src/generated", import.meta.url))),
       write(
-        emitEffectImported(contract, { module: "../contract", group: "SessionGroup" }),
+        emitPromise(contract, {
+          outputTypes: {
+            "events.subscribe": {
+              name: "OpenCodeEventEncoded",
+              import: 'import type { OpenCodeEventEncoded } from "@opencode-ai/protocol/groups/event"',
+            },
+          },
+        }),
+        fileURLToPath(new URL("../src/generated", import.meta.url)),
+      ),
+      write(
+        emitEffectImported(contract, { module: "../contract", api: "ClientApi" }),
         fileURLToPath(new URL("../src/generated-effect", import.meta.url)),
       ),
     ],

packages/client/src/contract.ts

@@ -1,6 +1,6 @@
 import { makeDefaultApi } from "@opencode-ai/protocol/api"
 import { InvalidRequestError, SessionNotFoundError } from "@opencode-ai/protocol/errors"
-import { HttpApiMiddleware } from "effect/unstable/httpapi"
+import { HttpApi, HttpApiMiddleware } from "effect/unstable/httpapi"
 
 class LocationMiddleware extends HttpApiMiddleware.Service<LocationMiddleware>()(
   "@opencode-ai/client/LocationMiddleware",
@@ -17,3 +17,5 @@ const Api = makeDefaultApi({
 })
 
 export const SessionGroup = Api.groups["server.session"]
+export const EventGroup = Api.groups["server.event"]
+export const ClientApi = HttpApi.make("opencode-client").add(SessionGroup).add(EventGroup)

packages/client/src/effect.ts

@@ -10,3 +10,4 @@ export { Session } from "@opencode-ai/schema/session"
 export { SessionInput } from "@opencode-ai/schema/session-input"
 export { SessionMessage } from "@opencode-ai/schema/session-message"
 export { Prompt } from "@opencode-ai/schema/prompt"
+export type { OpenCodeEvent } from "@opencode-ai/protocol/groups/event"

packages/client/src/generated-effect/client.ts

@@ -1,14 +1,12 @@
 // Generated by @opencode-ai/httpapi-codegen. Do not edit.
-import { Effect, Schema } from "effect"
+import { Effect, Stream, Schema } from "effect"
 import { Sse } from "effect/unstable/encoding"
 import { HttpClientError } from "effect/unstable/http"
-import { HttpApi, HttpApiClient } from "effect/unstable/httpapi"
-import { SessionGroup } from "../contract"
+import { HttpApiClient } from "effect/unstable/httpapi"
+import { ClientApi } from "../contract"
 import { ClientError } from "./client-error"
 
-const Api = HttpApi.make("generated").add(SessionGroup)
-
-type RawClient = HttpApiClient.ForApi<typeof Api>
+type RawClient = HttpApiClient.ForApi<typeof ClientApi>
 
 const mapClientError = <E>(error: E) =>
   HttpClientError.isHttpClientError(error) || Schema.isSchemaError(error) || Sse.Retry.is(error)
@@ -55,43 +53,49 @@ const Endpoint0_1 = (raw: RawClient["server.session"]) => (input?: Endpoint0_1In
     Effect.map((value) => value.data),
   )
 
-type Endpoint0_2Request = Parameters<RawClient["server.session"]["session.get"]>[0]
-type Endpoint0_2Input = { readonly sessionID: Endpoint0_2Request["params"]["sessionID"] }
-const Endpoint0_2 = (raw: RawClient["server.session"]) => (input: Endpoint0_2Input) =>
+const Endpoint0_2 = (raw: RawClient["server.session"]) => () =>
+  raw["session.active"]({}).pipe(
+    Effect.mapError(mapClientError),
+    Effect.map((value) => value.data),
+  )
+
+type Endpoint0_3Request = Parameters<RawClient["server.session"]["session.get"]>[0]
+type Endpoint0_3Input = { readonly sessionID: Endpoint0_3Request["params"]["sessionID"] }
+const Endpoint0_3 = (raw: RawClient["server.session"]) => (input: Endpoint0_3Input) =>
   raw["session.get"]({ params: { sessionID: input.sessionID } }).pipe(
     Effect.mapError(mapClientError),
     Effect.map((value) => value.data),
   )
 
-type Endpoint0_3Request = Parameters<RawClient["server.session"]["session.switchAgent"]>[0]
-type Endpoint0_3Input = {
-  readonly sessionID: Endpoint0_3Request["params"]["sessionID"]
-  readonly agent: Endpoint0_3Request["payload"]["agent"]
+type Endpoint0_4Request = Parameters<RawClient["server.session"]["session.switchAgent"]>[0]
+type Endpoint0_4Input = {
+  readonly sessionID: Endpoint0_4Request["params"]["sessionID"]
+  readonly agent: Endpoint0_4Request["payload"]["agent"]
 }
-const Endpoint0_3 = (raw: RawClient["server.session"]) => (input: Endpoint0_3Input) =>
+const Endpoint0_4 = (raw: RawClient["server.session"]) => (input: Endpoint0_4Input) =>
   raw["session.switchAgent"]({ params: { sessionID: input.sessionID }, payload: { agent: input.agent } }).pipe(
     Effect.mapError(mapClientError),
   )
 
-type Endpoint0_4Request = Parameters<RawClient["server.session"]["session.switchModel"]>[0]
-type Endpoint0_4Input = {
-  readonly sessionID: Endpoint0_4Request["params"]["sessionID"]
-  readonly model: Endpoint0_4Request["payload"]["model"]
+type Endpoint0_5Request = Parameters<RawClient["server.session"]["session.switchModel"]>[0]
+type Endpoint0_5Input = {
+  readonly sessionID: Endpoint0_5Request["params"]["sessionID"]
+  readonly model: Endpoint0_5Request["payload"]["model"]
 }
-const Endpoint0_4 = (raw: RawClient["server.session"]) => (input: Endpoint0_4Input) =>
+const Endpoint0_5 = (raw: RawClient["server.session"]) => (input: Endpoint0_5Input) =>
   raw["session.switchModel"]({ params: { sessionID: input.sessionID }, payload: { model: input.model } }).pipe(
     Effect.mapError(mapClientError),
   )
 
-type Endpoint0_5Request = Parameters<RawClient["server.session"]["session.prompt"]>[0]
-type Endpoint0_5Input = {
-  readonly sessionID: Endpoint0_5Request["params"]["sessionID"]
-  readonly id?: Endpoint0_5Request["payload"]["id"]
-  readonly prompt: Endpoint0_5Request["payload"]["prompt"]
-  readonly delivery?: Endpoint0_5Request["payload"]["delivery"]
-  readonly resume?: Endpoint0_5Request["payload"]["resume"]
+type Endpoint0_6Request = Parameters<RawClient["server.session"]["session.prompt"]>[0]
+type Endpoint0_6Input = {
+  readonly sessionID: Endpoint0_6Request["params"]["sessionID"]
+  readonly id?: Endpoint0_6Request["payload"]["id"]
+  readonly prompt: Endpoint0_6Request["payload"]["prompt"]
+  readonly delivery?: Endpoint0_6Request["payload"]["delivery"]
+  readonly resume?: Endpoint0_6Request["payload"]["resume"]
 }
-const Endpoint0_5 = (raw: RawClient["server.session"]) => (input: Endpoint0_5Input) =>
+const Endpoint0_6 = (raw: RawClient["server.session"]) => (input: Endpoint0_6Input) =>
   raw["session.prompt"]({
     params: { sessionID: input.sessionID },
     payload: { id: input.id, prompt: input.prompt, delivery: input.delivery, resume: input.resume },
@@ -100,23 +104,23 @@ const Endpoint0_5 = (raw: RawClient["server.session"]) => (input: Endpoint0_5Inp
     Effect.map((value) => value.data),
   )
 
-type Endpoint0_6Request = Parameters<RawClient["server.session"]["session.compact"]>[0]
-type Endpoint0_6Input = { readonly sessionID: Endpoint0_6Request["params"]["sessionID"] }
-const Endpoint0_6 = (raw: RawClient["server.session"]) => (input: Endpoint0_6Input) =>
-  raw["session.compact"]({ params: { sessionID: input.sessionID } }).pipe(Effect.mapError(mapClientError))
-
-type Endpoint0_7Request = Parameters<RawClient["server.session"]["session.wait"]>[0]
+type Endpoint0_7Request = Parameters<RawClient["server.session"]["session.compact"]>[0]
 type Endpoint0_7Input = { readonly sessionID: Endpoint0_7Request["params"]["sessionID"] }
 const Endpoint0_7 = (raw: RawClient["server.session"]) => (input: Endpoint0_7Input) =>
+  raw["session.compact"]({ params: { sessionID: input.sessionID } }).pipe(Effect.mapError(mapClientError))
+
+type Endpoint0_8Request = Parameters<RawClient["server.session"]["session.wait"]>[0]
+type Endpoint0_8Input = { readonly sessionID: Endpoint0_8Request["params"]["sessionID"] }
+const Endpoint0_8 = (raw: RawClient["server.session"]) => (input: Endpoint0_8Input) =>
   raw["session.wait"]({ params: { sessionID: input.sessionID } }).pipe(Effect.mapError(mapClientError))
 
-type Endpoint0_8Request = Parameters<RawClient["server.session"]["session.revert.stage"]>[0]
-type Endpoint0_8Input = {
-  readonly sessionID: Endpoint0_8Request["params"]["sessionID"]
-  readonly messageID: Endpoint0_8Request["payload"]["messageID"]
-  readonly files?: Endpoint0_8Request["payload"]["files"]
+type Endpoint0_9Request = Parameters<RawClient["server.session"]["session.revert.stage"]>[0]
+type Endpoint0_9Input = {
+  readonly sessionID: Endpoint0_9Request["params"]["sessionID"]
+  readonly messageID: Endpoint0_9Request["payload"]["messageID"]
+  readonly files?: Endpoint0_9Request["payload"]["files"]
 }
-const Endpoint0_8 = (raw: RawClient["server.session"]) => (input: Endpoint0_8Input) =>
+const Endpoint0_9 = (raw: RawClient["server.session"]) => (input: Endpoint0_9Input) =>
   raw["session.revert.stage"]({
     params: { sessionID: input.sessionID },
     payload: { messageID: input.messageID, files: input.files },
@@ -125,40 +129,99 @@ const Endpoint0_8 = (raw: RawClient["server.session"]) => (input: Endpoint0_8Inp
     Effect.map((value) => value.data),
   )
 
-type Endpoint0_9Request = Parameters<RawClient["server.session"]["session.revert.clear"]>[0]
-type Endpoint0_9Input = { readonly sessionID: Endpoint0_9Request["params"]["sessionID"] }
-const Endpoint0_9 = (raw: RawClient["server.session"]) => (input: Endpoint0_9Input) =>
-  raw["session.revert.clear"]({ params: { sessionID: input.sessionID } }).pipe(Effect.mapError(mapClientError))
-
-type Endpoint0_10Request = Parameters<RawClient["server.session"]["session.revert.commit"]>[0]
+type Endpoint0_10Request = Parameters<RawClient["server.session"]["session.revert.clear"]>[0]
 type Endpoint0_10Input = { readonly sessionID: Endpoint0_10Request["params"]["sessionID"] }
 const Endpoint0_10 = (raw: RawClient["server.session"]) => (input: Endpoint0_10Input) =>
-  raw["session.revert.commit"]({ params: { sessionID: input.sessionID } }).pipe(Effect.mapError(mapClientError))
+  raw["session.revert.clear"]({ params: { sessionID: input.sessionID } }).pipe(Effect.mapError(mapClientError))
 
-type Endpoint0_11Request = Parameters<RawClient["server.session"]["session.context"]>[0]
+type Endpoint0_11Request = Parameters<RawClient["server.session"]["session.revert.commit"]>[0]
 type Endpoint0_11Input = { readonly sessionID: Endpoint0_11Request["params"]["sessionID"] }
 const Endpoint0_11 = (raw: RawClient["server.session"]) => (input: Endpoint0_11Input) =>
+  raw["session.revert.commit"]({ params: { sessionID: input.sessionID } }).pipe(Effect.mapError(mapClientError))
+
+type Endpoint0_12Request = Parameters<RawClient["server.session"]["session.context"]>[0]
+type Endpoint0_12Input = { readonly sessionID: Endpoint0_12Request["params"]["sessionID"] }
+const Endpoint0_12 = (raw: RawClient["server.session"]) => (input: Endpoint0_12Input) =>
   raw["session.context"]({ params: { sessionID: input.sessionID } }).pipe(
     Effect.mapError(mapClientError),
     Effect.map((value) => value.data),
   )
 
+type Endpoint0_13Request = Parameters<RawClient["server.session"]["session.history"]>[0]
+type Endpoint0_13Input = {
+  readonly sessionID: Endpoint0_13Request["params"]["sessionID"]
+  readonly limit?: Endpoint0_13Request["query"]["limit"]
+  readonly after?: Endpoint0_13Request["query"]["after"]
+}
+const Endpoint0_13 = (raw: RawClient["server.session"]) => (input: Endpoint0_13Input) =>
+  raw["session.history"]({
+    params: { sessionID: input.sessionID },
+    query: { limit: input.limit, after: input.after },
+  }).pipe(Effect.mapError(mapClientError))
+
+type Endpoint0_14Request = Parameters<RawClient["server.session"]["session.events"]>[0]
+type Endpoint0_14Input = {
+  readonly sessionID: Endpoint0_14Request["params"]["sessionID"]
+  readonly after?: Endpoint0_14Request["query"]["after"]
+}
+const Endpoint0_14 = (raw: RawClient["server.session"]) => (input: Endpoint0_14Input) =>
+  Stream.unwrap(
+    raw["session.events"]({ params: { sessionID: input.sessionID }, query: { after: input.after } }).pipe(
+      Effect.mapError(mapClientError),
+      Effect.map((stream) => stream.pipe(Stream.mapError(mapClientError))),
+    ),
+  )
+
+type Endpoint0_15Request = Parameters<RawClient["server.session"]["session.interrupt"]>[0]
+type Endpoint0_15Input = { readonly sessionID: Endpoint0_15Request["params"]["sessionID"] }
+const Endpoint0_15 = (raw: RawClient["server.session"]) => (input: Endpoint0_15Input) =>
+  raw["session.interrupt"]({ params: { sessionID: input.sessionID } }).pipe(Effect.mapError(mapClientError))
+
+type Endpoint0_16Request = Parameters<RawClient["server.session"]["session.message"]>[0]
+type Endpoint0_16Input = {
+  readonly sessionID: Endpoint0_16Request["params"]["sessionID"]
+  readonly messageID: Endpoint0_16Request["params"]["messageID"]
+}
+const Endpoint0_16 = (raw: RawClient["server.session"]) => (input: Endpoint0_16Input) =>
+  raw["session.message"]({ params: { sessionID: input.sessionID, messageID: input.messageID } }).pipe(
+    Effect.mapError(mapClientError),
+    Effect.map((value) => value.data),
+  )
+
 const adaptGroup0 = (raw: RawClient["server.session"]) => ({
   list: Endpoint0_0(raw),
   create: Endpoint0_1(raw),
-  get: Endpoint0_2(raw),
-  switchAgent: Endpoint0_3(raw),
-  switchModel: Endpoint0_4(raw),
-  prompt: Endpoint0_5(raw),
-  compact: Endpoint0_6(raw),
-  wait: Endpoint0_7(raw),
-  stage: Endpoint0_8(raw),
-  clear: Endpoint0_9(raw),
-  commit: Endpoint0_10(raw),
-  context: Endpoint0_11(raw),
+  active: Endpoint0_2(raw),
+  get: Endpoint0_3(raw),
+  switchAgent: Endpoint0_4(raw),
+  switchModel: Endpoint0_5(raw),
+  prompt: Endpoint0_6(raw),
+  compact: Endpoint0_7(raw),
+  wait: Endpoint0_8(raw),
+  stage: Endpoint0_9(raw),
+  clear: Endpoint0_10(raw),
+  commit: Endpoint0_11(raw),
+  context: Endpoint0_12(raw),
+  history: Endpoint0_13(raw),
+  events: Endpoint0_14(raw),
+  interrupt: Endpoint0_15(raw),
+  message: Endpoint0_16(raw),
 })
 
-const adaptClient = (raw: RawClient) => ({ sessions: adaptGroup0(raw["server.session"]) })
+const Endpoint1_0 = (raw: RawClient["server.event"]) => () =>
+  Stream.unwrap(
+    raw["event.subscribe"]({}).pipe(
+      Effect.mapError(mapClientError),
+      Effect.map((stream) => stream.pipe(Stream.mapError(mapClientError))),
+    ),
+  )
+
+const adaptGroup1 = (raw: RawClient["server.event"]) => ({ subscribe: Endpoint1_0(raw) })
+
+const adaptClient = (raw: RawClient) => ({
+  sessions: adaptGroup0(raw["server.session"]),
+  events: adaptGroup1(raw["server.event"]),
+})
 
 export const make = (options?: { readonly baseUrl?: URL | string }) =>
-  HttpApiClient.make(Api, options).pipe(Effect.map(adaptClient))
+  HttpApiClient.make(ClientApi, options).pipe(Effect.map(adaptClient))

packages/client/src/generated/client.ts

@@ -3,6 +3,7 @@ import type {
   SessionsListOutput,
   SessionsCreateInput,
   SessionsCreateOutput,
+  SessionsActiveOutput,
   SessionsGetInput,
   SessionsGetOutput,
   SessionsSwitchAgentInput,
@@ -23,6 +24,15 @@ import type {
   SessionsCommitOutput,
   SessionsContextInput,
   SessionsContextOutput,
+  SessionsHistoryInput,
+  SessionsHistoryOutput,
+  SessionsEventsInput,
+  SessionsEventsOutput,
+  SessionsInterruptInput,
+  SessionsInterruptOutput,
+  SessionsMessageInput,
+  SessionsMessageOutput,
+  EventsSubscribeOutput,
 } from "./types"
 import { ClientError } from "./client-error"
 
@@ -192,6 +202,17 @@ export function make(options: ClientOptions) {
           },
           requestOptions,
         ).then((value) => value.data),
+      active: (requestOptions?: RequestOptions) =>
+        request<{ readonly data: SessionsActiveOutput }>(
+          {
+            method: "GET",
+            path: `/api/session/active`,
+            successStatus: 200,
+            declaredStatuses: [401, 400],
+            empty: false,
+          },
+          requestOptions,
+        ).then((value) => value.data),
       get: (input: SessionsGetInput, requestOptions?: RequestOptions) =>
         request<{ readonly data: SessionsGetOutput }>(
           {
@@ -306,6 +327,59 @@ export function make(options: ClientOptions) {
           },
           requestOptions,
         ).then((value) => value.data),
+      history: (input: SessionsHistoryInput, requestOptions?: RequestOptions) =>
+        request<SessionsHistoryOutput>(
+          {
+            method: "GET",
+            path: `/api/session/${encodeURIComponent(input.sessionID)}/history`,
+            query: { limit: input.limit, after: input.after },
+            successStatus: 200,
+            declaredStatuses: [404, 400, 401],
+            empty: false,
+          },
+          requestOptions,
+        ),
+      events: (input: SessionsEventsInput, requestOptions?: RequestOptions): AsyncIterable<SessionsEventsOutput> =>
+        sse<SessionsEventsOutput>(
+          {
+            method: "GET",
+            path: `/api/session/${encodeURIComponent(input.sessionID)}/event`,
+            query: { after: input.after },
+            successStatus: 200,
+            declaredStatuses: [404, 400, 401],
+            empty: false,
+          },
+          requestOptions,
+        ),
+      interrupt: (input: SessionsInterruptInput, requestOptions?: RequestOptions) =>
+        request<SessionsInterruptOutput>(
+          {
+            method: "POST",
+            path: `/api/session/${encodeURIComponent(input.sessionID)}/interrupt`,
+            successStatus: 204,
+            declaredStatuses: [404, 400, 401],
+            empty: true,
+          },
+          requestOptions,
+        ),
+      message: (input: SessionsMessageInput, requestOptions?: RequestOptions) =>
+        request<{ readonly data: SessionsMessageOutput }>(
+          {
+            method: "GET",
+            path: `/api/session/${encodeURIComponent(input.sessionID)}/message/${encodeURIComponent(input.messageID)}`,
+            successStatus: 200,
+            declaredStatuses: [404, 400, 401],
+            empty: false,
+          },
+          requestOptions,
+        ).then((value) => value.data),
+    },
+    events: {
+      subscribe: (requestOptions?: RequestOptions): AsyncIterable<EventsSubscribeOutput> =>
+        sse<EventsSubscribeOutput>(
+          { method: "GET", path: `/api/event`, successStatus: 200, declaredStatuses: [401, 400], empty: false },
+          requestOptions,
+        ),
     },
   }
 }

packages/client/src/index.ts

@@ -1 +1,2 @@
 export * from "./generated/index"
+export type { EventsSubscribeOutput as OpenCodeEvent } from "./generated/types"

packages/client/sst-env.d.ts

@@ -0,0 +1,10 @@
+/* This file is auto-generated by SST. Do not edit. */
+/* tslint:disable */
+/* eslint-disable */
+/* deno-fmt-ignore-file */
+/* biome-ignore-all lint: auto-generated */
+
+/// <reference path="../../sst-env.d.ts" />
+
+import "sst"
+export {}

packages/client/test/contract-identity.test.ts

@@ -20,7 +20,7 @@ import { Workspace } from "@opencode-ai/schema/workspace"
 import { Api } from "@opencode-ai/server/api"
 import { compile, emitPromise } from "@opencode-ai/httpapi-codegen"
 import { HttpApi } from "effect/unstable/httpapi"
-import { SessionGroup } from "../src/contract"
+import { EventGroup, SessionGroup } from "../src/contract"
 
 test("Core and Server reuse the authoritative Schema and Protocol values", () => {
   expect(AgentV2.ID).toBe(Agent.ID)
@@ -32,6 +32,7 @@ test("Core and Server reuse the authoritative Schema and Protocol values", () =>
   expect(CorePrompt).toBe(Prompt)
   expect(Api.groups["server.session"].identifier).toBe("server.session")
   expect(SessionGroup.identifier).toBe(Api.groups["server.session"].identifier)
+  expect(EventGroup.identifier).toBe(Api.groups["server.event"].identifier)
   expect(Session.ID.create()).toStartWith("ses_")
   expect(Project.ID.global).toBe("global")
   expect(Provider.ID.anthropic).toBe("anthropic")

packages/client/test/effect.test.ts

@@ -1,7 +1,7 @@
 import { expect, test } from "bun:test"
-import { DateTime, Effect } from "effect"
+import { DateTime, Effect, Stream } from "effect"
 import { HttpClient, HttpClientResponse } from "effect/unstable/http"
-import { AbsolutePath, Agent, Location, Model, OpenCode, Prompt, Session } from "../src/effect"
+import { AbsolutePath, Agent, Location, Model, OpenCode, Prompt, Session, SessionMessage } from "../src/effect"
 
 test("sessions.get returns the decoded Effect projection", async () => {
   const httpClient = HttpClient.make((request) =>
@@ -15,15 +15,91 @@ test("sessions.get returns the decoded Effect projection", async () => {
   expect(DateTime.toEpochMillis(result.time.created)).toBe(1_717_171_717_000)
 })
 
+test("events.subscribe exposes and decodes the native Effect event stream", async () => {
+  const httpClient = HttpClient.make((request) =>
+    Effect.succeed(
+      HttpClientResponse.fromWeb(
+        request,
+        new Response(
+          `data: ${JSON.stringify({ id: "evt_connected", type: "server.connected", data: {} })}\n\n` +
+            `data: ${JSON.stringify(modelSwitchedEvent)}\n\n`,
+          { headers: { "content-type": "text/event-stream" } },
+        ),
+      ),
+    ),
+  )
+  const events = await Effect.gen(function* () {
+    const client = yield* OpenCode.make({ baseUrl: "http://localhost:3000" })
+    return yield* client.events.subscribe().pipe(Stream.runCollect)
+  }).pipe(Effect.provideService(HttpClient.HttpClient, httpClient), Effect.runPromise)
+
+  expect(Array.from(events).map((event) => event.type)).toEqual(["server.connected", "session.next.model.switched"])
+  const durable = events[1]
+  if (durable?.type !== "session.next.model.switched") throw new Error("Expected model event")
+  expect(DateTime.toEpochMillis(durable.data.timestamp)).toBe(1_717_171_717_000)
+  expect(durable.durable).toEqual({ aggregateID: "ses_test", seq: 1, version: 1 })
+})
+
+test("events.subscribe terminates on Effect protocol decode failures", async () => {
+  const httpClient = HttpClient.make((request) =>
+    Effect.succeed(
+      HttpClientResponse.fromWeb(
+        request,
+        new Response(`data: {"type":"server.connected"}\n\n`, {
+          headers: { "content-type": "text/event-stream" },
+        }),
+      ),
+    ),
+  )
+  const error = await Effect.gen(function* () {
+    const client = yield* OpenCode.make({ baseUrl: "http://localhost:3000" })
+    return yield* client.events.subscribe().pipe(Stream.runCollect, Effect.flip)
+  }).pipe(Effect.provideService(HttpClient.HttpClient, httpClient), Effect.runPromise)
+
+  expect(error._tag).toBe("ClientError")
+})
+
 test("session methods retain decoded Effect inputs and outputs", async () => {
+  const historyQueries: Array<Record<string, string>> = []
+  let historyPage = 0
   const httpClient = HttpClient.make((request) => {
     const url = request.url
+    if (url.includes("/event")) {
+      return Effect.succeed(
+        HttpClientResponse.fromWeb(
+          request,
+          new Response(`data: ${JSON.stringify(modelSwitchedEvent)}\n\n`, {
+            headers: { "content-type": "text/event-stream" },
+          }),
+        ),
+      )
+    }
+    if (url.includes("/history")) {
+      historyPage++
+      historyQueries.push(Object.fromEntries(request.urlParams.params))
+      return Effect.succeed(
+        HttpClientResponse.fromWeb(
+          request,
+          Response.json(
+            historyPage === 1 ? { data: [modelSwitchedEvent], hasMore: true } : { data: [], hasMore: false },
+          ),
+        ),
+      )
+    }
     if (url.includes("/prompt")) {
       return Effect.succeed(HttpClientResponse.fromWeb(request, Response.json(admission)))
     }
     if (url.includes("/context")) {
       return Effect.succeed(HttpClientResponse.fromWeb(request, Response.json({ data: [] })))
     }
+    if (url.includes("/message/")) {
+      return Effect.succeed(HttpClientResponse.fromWeb(request, Response.json({ data: modelSwitchedMessage })))
+    }
+    if (url.endsWith("/api/session/active")) {
+      return Effect.succeed(
+        HttpClientResponse.fromWeb(request, Response.json({ data: { ses_test: { type: "running" } } })),
+      )
+    }
     if (request.method === "POST" && url.endsWith("/api/session")) {
       return Effect.succeed(HttpClientResponse.fromWeb(request, Response.json(session)))
     }
@@ -37,6 +113,7 @@ test("session methods retain decoded Effect inputs and outputs", async () => {
   const result = await Effect.gen(function* () {
     const client = yield* OpenCode.make({ baseUrl: "http://localhost:3000" })
     const page = yield* client.sessions.list({ limit: 10 })
+    const active = yield* client.sessions.active()
     const created = yield* client.sessions.create({
       location: Location.Ref.make({ directory: AbsolutePath.make("/tmp/project") }),
     })
@@ -53,10 +130,31 @@ test("session methods retain decoded Effect inputs and outputs", async () => {
     yield* client.sessions.compact({ sessionID: Session.ID.make("ses_test") })
     yield* client.sessions.wait({ sessionID: Session.ID.make("ses_test") })
     const context = yield* client.sessions.context({ sessionID: Session.ID.make("ses_test") })
-    return { page, created, admitted, context }
+    const history = yield* client.sessions.history({
+      sessionID: Session.ID.make("ses_test"),
+      after: 0,
+      limit: 1,
+    })
+    const historyNext = history.hasMore
+      ? yield* client.sessions.history({
+          sessionID: Session.ID.make("ses_test"),
+          after: history.data.at(-1)?.durable?.seq,
+          limit: 2,
+        })
+      : undefined
+    const events = yield* client.sessions
+      .events({ sessionID: Session.ID.make("ses_test"), after: 0 })
+      .pipe(Stream.runCollect)
+    yield* client.sessions.interrupt({ sessionID: Session.ID.make("ses_test") })
+    const message = yield* client.sessions.message({
+      sessionID: Session.ID.make("ses_test"),
+      messageID: SessionMessage.ID.make("msg_model"),
+    })
+    return { page, active, created, admitted, context, history, historyNext, events, message }
   }).pipe(Effect.provideService(HttpClient.HttpClient, httpClient), Effect.runPromise)
 
   expect(DateTime.toEpochMillis(result.page.data[0].time.created)).toBe(1_717_171_717_000)
+  expect(result.active).toEqual({ ses_test: { type: "running" } })
   expect(Object.getPrototypeOf(result.page.data[0])).toBe(Object.prototype)
   expect(Object.getPrototypeOf(result.created)).toBe(Object.prototype)
   expect(result.created.id).toBe("ses_test")
@@ -64,6 +162,37 @@ test("session methods retain decoded Effect inputs and outputs", async () => {
   expect(Object.getPrototypeOf(result.admitted.prompt)).toBe(Object.prototype)
   expect(DateTime.toEpochMillis(result.admitted.timeCreated)).toBe(1_717_171_717_000)
   expect(result.context).toEqual([])
+  expect(DateTime.toEpochMillis(result.history.data[0].data.timestamp)).toBe(1_717_171_717_000)
+  expect(result.history).toEqual(expect.objectContaining({ hasMore: true }))
+  expect(result.historyNext).toEqual({ data: [], hasMore: false })
+  expect(historyQueries[0]).toEqual({ limit: "1", after: "0" })
+  expect(historyQueries[1]).toEqual({ limit: "2", after: "1" })
+  expect(DateTime.toEpochMillis(result.events[0].data.timestamp)).toBe(1_717_171_717_000)
+  expect(result.message).toEqual(expect.objectContaining({ id: "msg_model", type: "model-switched" }))
+})
+
+test("sessions.history retains the typed SessionNotFoundError", async () => {
+  const httpClient = HttpClient.make((request) =>
+    Effect.succeed(
+      HttpClientResponse.fromWeb(
+        request,
+        Response.json(
+          { _tag: "SessionNotFoundError", sessionID: "ses_missing", message: "Session not found" },
+          { status: 404 },
+        ),
+      ),
+    ),
+  )
+  const error = await Effect.gen(function* () {
+    const client = yield* OpenCode.make({ baseUrl: "http://localhost:3000" })
+    return yield* client.sessions
+      .history({
+        sessionID: Session.ID.make("ses_missing"),
+      })
+      .pipe(Effect.flip)
+  }).pipe(Effect.provideService(HttpClient.HttpClient, httpClient), Effect.runPromise)
+
+  expect(error._tag).toBe("SessionNotFoundError")
 })
 
 const session = {
@@ -96,3 +225,22 @@ const admission = {
     timeCreated: 1_717_171_717_000,
   },
 }
+
+const modelSwitchedMessage = {
+  id: "msg_model",
+  type: "model-switched",
+  time: { created: 1_717_171_717_000 },
+  model: { id: "claude", providerID: "anthropic" },
+}
+
+const modelSwitchedEvent = {
+  id: "evt_model",
+  type: "session.next.model.switched",
+  durable: { aggregateID: "ses_test", seq: 1, version: 1 },
+  data: {
+    timestamp: 1_717_171_717_000,
+    sessionID: "ses_test",
+    messageID: "msg_model",
+    model: { id: "claude", providerID: "anthropic" },
+  },
+}

packages/client/test/promise.test.ts

@@ -1,5 +1,5 @@
 import { expect, test } from "bun:test"
-import { isUnauthorizedError, OpenCode } from "../src"
+import { isSessionNotFoundError, isUnauthorizedError, OpenCode } from "../src"
 
 test("sessions.get returns the wire projection", async () => {
   const client = OpenCode.make({
@@ -17,22 +17,66 @@ test("sessions.get returns the wire projection", async () => {
   expect(result.time.created).toBe(1_717_171_717_000)
 })
 
+test("events.subscribe exposes the Promise event stream wire projection", async () => {
+  const client = OpenCode.make({
+    baseUrl: "http://localhost:3000",
+    fetch: async () =>
+      new Response(
+        `: heartbeat\n\ndata: ${JSON.stringify({ id: "evt_connected", type: "server.connected", data: {} })}\n\n` +
+          `data: ${JSON.stringify(modelSwitchedEvent)}\n\n`,
+        { headers: { "content-type": "text/event-stream" } },
+      ),
+  })
+  const events = []
+  for await (const event of client.events.subscribe()) events.push(event)
+
+  expect(events).toEqual([{ id: "evt_connected", type: "server.connected", data: {} }, modelSwitchedEvent])
+  expect(events[1]?.type === "session.next.model.switched" && events[1].data.timestamp).toBe(1_717_171_717_000)
+})
+
+test("events.subscribe terminates on malformed Promise SSE data", async () => {
+  const client = OpenCode.make({
+    baseUrl: "http://localhost:3000",
+    fetch: async () => new Response("data: {not-json}\n\n", { headers: { "content-type": "text/event-stream" } }),
+  })
+
+  await expect(client.events.subscribe()[Symbol.asyncIterator]().next()).rejects.toMatchObject({
+    name: "ClientError",
+    reason: "MalformedResponse",
+  })
+})
+
 test("session methods use the public HTTP contract", async () => {
   const requests: Array<{ url: string; init?: RequestInit }> = []
+  let historyPage = 0
   const client = OpenCode.make({
     baseUrl: "http://localhost:3000",
     fetch: async (input, init) => {
       const url = typeof input === "string" ? input : input instanceof URL ? input.href : input.url
       requests.push({ url, init })
+      if (url.includes("/event")) {
+        return new Response(`data: ${JSON.stringify(modelSwitchedEvent)}\n\n`, {
+          headers: { "content-type": "text/event-stream" },
+        })
+      }
+      if (url.includes("/history")) {
+        historyPage++
+        return Response.json(
+          historyPage === 1 ? { data: [modelSwitchedEvent], hasMore: true } : { data: [], hasMore: false },
+        )
+      }
       if (url.includes("/prompt")) return Response.json(admission)
       if (url.includes("/context")) return Response.json({ data: [] })
+      if (url.includes("/message/")) return Response.json({ data: modelSwitchedMessage })
+      if (url.endsWith("/api/session/active")) return Response.json({ data: { ses_test: { type: "running" } } })
       if (init?.method === "POST" && url.endsWith("/api/session")) return Response.json(session)
       if (init?.method === "POST") return new Response(null, { status: 204 })
       return Response.json({ data: [session.data], cursor: { next: "next" } })
     },
   })
 
-  const page = await client.sessions.list({ limit: "10", order: "desc" })
+  const page = await client.sessions.list({ limit: 10, order: "desc" })
+  const active = await client.sessions.active()
   const created = await client.sessions.create({ location: { directory: "/tmp/project" } })
   await client.sessions.switchAgent({ sessionID: "ses_test", agent: "build" })
   await client.sessions.switchModel({
@@ -47,13 +91,28 @@ test("session methods use the public HTTP contract", async () => {
   await client.sessions.compact({ sessionID: "ses_test" })
   await client.sessions.wait({ sessionID: "ses_test" })
   const context = await client.sessions.context({ sessionID: "ses_test" })
+  const history = await client.sessions.history({ sessionID: "ses_test", after: 0, limit: 1 })
+  const historyAfter = history.data.at(-1)?.durable?.seq
+  const historyNext = history.hasMore
+    ? await client.sessions.history({ sessionID: "ses_test", after: historyAfter, limit: 2 })
+    : undefined
+  const events = []
+  for await (const event of client.sessions.events({ sessionID: "ses_test", after: 0 })) events.push(event)
+  await client.sessions.interrupt({ sessionID: "ses_test" })
+  const message = await client.sessions.message({ sessionID: "ses_test", messageID: "msg_model" })
 
   expect(page.cursor.next).toBe("next")
+  expect(active).toEqual({ ses_test: { type: "running" } })
   expect(created.id).toBe("ses_test")
   expect(admitted.id).toBe("msg_test")
   expect(context).toEqual([])
+  expect(history).toEqual({ data: [modelSwitchedEvent], hasMore: true })
+  expect(historyNext).toEqual({ data: [], hasMore: false })
+  expect(events).toEqual([modelSwitchedEvent])
+  expect(message).toEqual(modelSwitchedMessage)
   expect(requests.map((request) => [request.init?.method, request.url])).toEqual([
     ["GET", "http://localhost:3000/api/session?limit=10&order=desc"],
+    ["GET", "http://localhost:3000/api/session/active"],
     ["POST", "http://localhost:3000/api/session"],
     ["POST", "http://localhost:3000/api/session/ses_test/agent"],
     ["POST", "http://localhost:3000/api/session/ses_test/model"],
@@ -61,8 +120,13 @@ test("session methods use the public HTTP contract", async () => {
     ["POST", "http://localhost:3000/api/session/ses_test/compact"],
     ["POST", "http://localhost:3000/api/session/ses_test/wait"],
     ["GET", "http://localhost:3000/api/session/ses_test/context"],
+    ["GET", "http://localhost:3000/api/session/ses_test/history?limit=1&after=0"],
+    ["GET", "http://localhost:3000/api/session/ses_test/history?limit=2&after=1"],
+    ["GET", "http://localhost:3000/api/session/ses_test/event?after=0"],
+    ["POST", "http://localhost:3000/api/session/ses_test/interrupt"],
+    ["GET", "http://localhost:3000/api/session/ses_test/message/msg_model"],
   ])
-  const body = requests[4]?.init?.body
+  const body = requests.find((request) => request.url.endsWith("/api/session/ses_test/prompt"))?.init?.body
   if (typeof body !== "string") throw new Error("Expected JSON request body")
   expect(JSON.parse(body)).toEqual({
     prompt: { text: "Hello" },
@@ -85,6 +149,24 @@ test("middleware errors remain declared client errors", async () => {
   }
 })
 
+test("sessions.history decodes SessionNotFoundError", async () => {
+  const client = OpenCode.make({
+    baseUrl: "http://localhost:3000",
+    fetch: async () =>
+      Response.json(
+        { _tag: "SessionNotFoundError", sessionID: "ses_missing", message: "Session not found" },
+        { status: 404 },
+      ),
+  })
+
+  try {
+    await client.sessions.history({ sessionID: "ses_missing" })
+    throw new Error("Expected request to fail")
+  } catch (error) {
+    expect(isSessionNotFoundError(error)).toBe(true)
+  }
+})
+
 const session = {
   data: {
     id: "ses_test",
@@ -115,3 +197,22 @@ const admission = {
     timeCreated: 1_717_171_717_000,
   },
 }
+
+const modelSwitchedMessage = {
+  id: "msg_model",
+  type: "model-switched",
+  time: { created: 1_717_171_717_000 },
+  model: { id: "claude", providerID: "anthropic" },
+}
+
+const modelSwitchedEvent = {
+  id: "evt_model",
+  type: "session.next.model.switched",
+  durable: { aggregateID: "ses_test", seq: 1, version: 1 },
+  data: {
+    timestamp: 1_717_171_717_000,
+    sessionID: "ses_test",
+    messageID: "msg_model",
+    model: { id: "claude", providerID: "anthropic" },
+  },
+}

packages/console/app/src/lib/stats-proxy.ts

@@ -1,10 +1,15 @@
 import type { APIEvent } from "@solidjs/start/server"
 import { Resource } from "@opencode-ai/console-resource"
+import { LOCALE_HEADER, cookie, localeFromRequest, route, tag } from "~/lib/language"
 
 const dataPath = "/data"
 
 export async function statsProxy(evt: APIEvent) {
   const req = evt.request.clone()
+  const locale = localeFromRequest(req)
+  const redirect = redirectToLocalizedData(req, new URL(req.url), locale)
+  if (redirect) return redirect
+
   const targetUrl = new URL(req.url)
   targetUrl.protocol = "https:"
   targetUrl.hostname = Resource.App.stage === "production" ? "stats.opencode.ai" : "stats.dev.opencode.ai"
@@ -18,9 +23,13 @@ export async function statsProxy(evt: APIEvent) {
     targetUrl.pathname = targetUrl.pathname.slice(dataPath.length)
   }
 
+  const requestHeaders = new Headers(req.headers)
+  requestHeaders.set(LOCALE_HEADER, locale)
+  requestHeaders.set("accept-language", tag(locale))
+
   const response = await fetch(targetUrl, {
     method: req.method,
-    headers: req.headers,
+    headers: requestHeaders,
     body: req.body,
   })
 
@@ -30,6 +39,7 @@ export async function statsProxy(evt: APIEvent) {
   headers.delete("content-encoding")
   headers.delete("content-length")
   headers.delete("etag")
+  appendVary(headers, "Accept-Language", "Cookie")
 
   return new Response(rewriteStatsHtml(await response.text()), {
     status: response.status,
@@ -52,3 +62,60 @@ export function statsRedirect(evt: APIEvent) {
 function rewriteStatsHtml(html: string) {
   return html.replaceAll('"/_build/', `"${dataPath}/_build/`).replaceAll("'/_build/", `'${dataPath}/_build/`)
 }
+
+function redirectToLocalizedData(request: Request, url: URL, locale: ReturnType<typeof localeFromRequest>) {
+  if (locale === "en") return null
+  if (request.headers.get(LOCALE_HEADER)) return null
+  if (request.method !== "GET" && request.method !== "HEAD") return null
+  if (!acceptsHtml(request)) return null
+  if (!url.pathname.startsWith(`${dataPath}/`) && url.pathname !== dataPath) return null
+  if (isDataBypassPath(url.pathname)) return null
+
+  const next = new URL(url)
+  next.pathname = route(locale, url.pathname)
+
+  const headers = new Headers({
+    Location: next.toString(),
+  })
+  headers.append("set-cookie", cookie(locale))
+  appendVary(headers, "Accept-Language", "Cookie")
+
+  return new Response(null, {
+    status: 308,
+    headers,
+  })
+}
+
+function acceptsHtml(request: Request) {
+  const accept = request.headers.get("accept")
+  return !accept || accept.includes("text/html") || accept.includes("*/*")
+}
+
+function isDataBypassPath(pathname: string) {
+  return (
+    pathname.startsWith(`${dataPath}/_build/`) ||
+    pathname.startsWith(`${dataPath}/api/`) ||
+    pathname.startsWith(`${dataPath}/_server`) ||
+    pathname === `${dataPath}/banner.jpg` ||
+    pathname === `${dataPath}/banner.png`
+  )
+}
+
+function appendVary(headers: Headers, ...values: string[]) {
+  const existing = headers
+    .get("vary")
+    ?.split(",")
+    .map((value) => value.trim())
+    .filter(Boolean)
+
+  headers.set(
+    "vary",
+    values
+      .reduce(
+        (result, value) =>
+          result.some((item) => item.toLowerCase() === value.toLowerCase()) ? result : [...result, value],
+        existing ?? [],
+      )
+      .join(", "),
+  )
+}

packages/console/app/src/routes/zen/util/handler.ts

@@ -196,11 +196,12 @@ export async function handler(
           providerInfo.modifyHeaders(headers, providerInfo.apiKey, stickyId)
           Object.entries(providerInfo.headerModifier ?? {}).forEach(([k, v]) => {
             if (v === "$ip") return headers.set(k, ip)
-            if (v === "$caller") return headers.set(k, `caller:${ip}`)
+            if (v === "$caller") return headers.set(k, stickyId)
             if (v === "$session") return headers.set(k, sessionId)
             if (v === "$model") return headers.set(k, model)
             if (v === "$request") return headers.set(k, requestId)
             if (v === "$project") return headers.set(k, projectId)
+            if (v === "$workspace" && authInfo?.workspaceID) return headers.set(k, authInfo.workspaceID)
             headers.set(k, v)
           })
           headers.delete("host")
@@ -214,6 +215,16 @@ export async function handler(
         body: reqBody,
       })
 
+      if (providerInfo.id.startsWith("console.")) {
+        const resEndpointId = res.headers.get("x-opencode-endpoint-id")
+        const resEndpointModelId = res.headers.get("x-opencode-upstream-model-id")
+        if (resEndpointId && resEndpointModelId)
+          logger.metric({
+            provider: resEndpointId,
+            "provider.model": resEndpointModelId,
+          })
+      }
+
       if (res.status !== 200) {
         logger.metric({
           "llm.error.code": res.status,

packages/core/package.json

@@ -16,6 +16,8 @@
     "opencode": "./bin/opencode"
   },
   "exports": {
+    "./effect/layer-node": "./src/effect/layer-node.ts",
+    "./effect/app-node": "./src/effect/app-node.ts",
     "./session/runner": "./src/session/runner/index.ts",
     "./system-context": "./src/system-context/index.ts",
     "./*": "./src/*.ts"
@@ -102,6 +104,7 @@
     "ai-gateway-provider": "3.1.2",
     "bun-pty": "0.4.8",
     "cross-spawn": "catalog:",
+    "diff": "catalog:",
     "drizzle-orm": "catalog:",
     "effect": "catalog:",
     "fuzzysort": "3.1.0",

packages/core/src/agent.ts

@@ -1,5 +1,6 @@
 export * as AgentV2 from "./agent"
 
+import { makeLocationNode } from "./effect/app-node"
 import { Array, Context, Effect, Layer, Types } from "effect"
 import { Agent } from "@opencode-ai/schema/agent"
 import { State } from "./state"
@@ -106,3 +107,5 @@ export const layer = Layer.effect(
 )
 
 export const locationLayer = layer
+
+export const node = makeLocationNode({ service: Service, layer, deps: [] })

packages/core/src/aisdk.ts

@@ -1,46 +1,13 @@
 export * as AISDK from "./aisdk"
 
-import type {
-  JSONSchema7,
-  JSONValue,
-  LanguageModelV3,
-  LanguageModelV3CallOptions,
-  LanguageModelV3FunctionTool,
-  LanguageModelV3Message,
-  LanguageModelV3Prompt,
-  LanguageModelV3StreamPart,
-  LanguageModelV3ToolChoice,
-  SharedV3ProviderOptions,
-} from "@ai-sdk/provider"
-import {
-  FinishReason,
-  InvalidProviderOutputReason,
-  LLMEvent,
-  LLMError,
-  Model,
-  ProviderID,
-  ProviderMetadata,
-  ToolResultValue,
-  UnknownProviderReason,
-  type ContentPart,
-  type LLMRequest,
-  type ToolDefinition,
-  type UsageInput,
-} from "@opencode-ai/llm"
-import {
-  Auth,
-  Endpoint,
-  type AnyRoute,
-} from "@opencode-ai/llm/route"
-import { Cause, Context, Effect, Layer, Schema, Scope, Stream } from "effect"
+import { makeLocationNode } from "./effect/app-node"
+import type { LanguageModelV3 } from "@ai-sdk/provider"
+import { Cause, Context, Effect, Layer, Schema, Scope } from "effect"
 import { ModelV2 } from "./model"
 import { ProviderV2 } from "./provider"
 import { State } from "./state"
 
 type SDK = any
-type UserContent = Extract<LanguageModelV3Message, { role: "user" }>["content"]
-type AssistantContent = Extract<LanguageModelV3Message, { role: "assistant" }>["content"]
-type ToolResultContent = Extract<AssistantContent[number], { type: "tool-result" }>
 
 export interface SDKEvent {
   readonly model: ModelV2.Info
@@ -107,10 +74,10 @@ function wrapSSE(res: Response, ms: number, ctl: AbortController) {
 function prepareOptions(model: ModelV2.Info, pkg: string) {
   const options: Record<string, any> = {
     name: model.providerID,
-    ...(model.settings ?? {}),
-    headers: model.headers,
-    body: model.body,
+    ...(model.api.type === "aisdk" ? (model.api.settings ?? {}) : {}),
+    ...model.request.body,
   }
+  if (model.api.type === "aisdk" && model.api.url) options.baseURL = model.api.url
 
   const customFetch = options.fetch
   const chunkTimeout = options.chunkTimeout
@@ -175,7 +142,6 @@ export interface Interface {
   readonly runSDK: (event: SDKEvent) => Effect.Effect<SDKEvent>
   readonly runLanguage: (event: LanguageEvent) => Effect.Effect<LanguageEvent>
   readonly language: (model: ModelV2.Info) => Effect.Effect<LanguageModelV3, InitError>
-  readonly model: (model: ModelV2.Info) => Effect.Effect<Model, InitError>
 }
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/v2/AISDK") {}
@@ -230,26 +196,24 @@ export const locationLayer = Layer.effect(
       runSDK: (event) => run(sdkHooks, event),
       runLanguage: (event) => run(languageHooks, event),
       language: Effect.fn("AISDK.language")(function* (model) {
-        const key = `${model.providerID}/${model.id}/${model.modelID ?? model.id}/${JSON.stringify(model.settings)}`
+        const key = `${model.providerID}/${model.id}/${model.request.variant ?? "default"}`
         const existing = languages.get(key)
         if (existing) return existing
-        if (!ProviderV2.isAISDK(model.package))
+        if (model.api.type !== "aisdk")
           return yield* new InitError({
             providerID: model.providerID,
-            cause: new Error(`Unsupported package ${model.package}`),
+            cause: new Error(`Unsupported api ${model.api.type}`),
           })
 
-        const packageName = ProviderV2.packageName(model.package) ?? ""
-        const options = prepareOptions(model, packageName)
+        const options = prepareOptions(model, model.api.package)
         const sdkKey = JSON.stringify({
           providerID: model.providerID,
-          package: packageName,
-          settings: model.settings,
+          api: model.api,
           options,
         })
         const sdk =
           sdks.get(sdkKey) ??
-          (yield* service.runSDK({ model, package: packageName, options }).pipe(initError(model.providerID))).sdk
+          (yield* service.runSDK({ model, package: model.api.package, options }).pipe(initError(model.providerID))).sdk
         if (!sdk)
           return yield* new InitError({
             providerID: model.providerID,
@@ -257,341 +221,17 @@ export const locationLayer = Layer.effect(
           })
         sdks.set(sdkKey, sdk)
         const result = yield* service.runLanguage({ model, sdk, options }).pipe(initError(model.providerID))
-        const language = yield* Effect.sync(() => result.language ?? sdk.languageModel(model.modelID ?? model.id)).pipe(
+        const language = yield* Effect.sync(() => result.language ?? sdk.languageModel(model.api.id)).pipe(
           initError(model.providerID),
         )
         languages.set(key, language)
         return language
       }),
-      model: Effect.fn("AISDK.model")(function* (model) {
-        return modelFromLanguage(model, yield* service.language(model))
-      }),
     })
     return service
   }),
 )
 
+export const node = makeLocationNode({ service: Service, layer: locationLayer, deps: [] })
+
 export const defaultLayer = locationLayer
-
-function modelFromLanguage(info: ModelV2.Info, language: LanguageModelV3) {
-  const route: AnyRoute = {
-    id: `ai-sdk:${ProviderV2.packageName(info.package) ?? "unknown"}`,
-    provider: ProviderID.make(info.providerID),
-    protocol: "ai-sdk",
-    endpoint: Endpoint.path("/", { baseURL: "https://ai-sdk.local" }),
-    auth: Auth.none,
-    transport: {
-      id: "ai-sdk",
-      prepare: (input) => Effect.succeed(input.body),
-      frames: () => Stream.empty,
-    },
-    defaults: {
-      headers: info.headers,
-      http: info.body === undefined ? undefined : { body: { ...info.body } },
-      limits: { context: info.limit.context, output: info.limit.output },
-    },
-    body: {
-      schema: Schema.Unknown,
-      from: (request) => Effect.succeed(callOptions(request)),
-    },
-    with: () => route,
-    model: (input) =>
-      Model.make({ ...input, provider: "provider" in input ? input.provider : info.providerID, route }),
-    prepareTransport: (body) => Effect.succeed(body),
-    streamPrepared: (prepared) => streamLanguage(language, prepared as LanguageModelV3CallOptions),
-  }
-  return Model.make({ id: info.modelID ?? info.id, provider: info.providerID, route })
-}
-
-function callOptions(request: LLMRequest): LanguageModelV3CallOptions {
-  return {
-    prompt: prompt(request),
-    maxOutputTokens: request.generation?.maxTokens ?? request.model.route.defaults.limits?.output,
-    temperature: request.generation?.temperature,
-    stopSequences: request.generation?.stop === undefined ? undefined : [...request.generation.stop],
-    topP: request.generation?.topP,
-    topK: request.generation?.topK,
-    presencePenalty: request.generation?.presencePenalty,
-    frequencyPenalty: request.generation?.frequencyPenalty,
-    seed: request.generation?.seed,
-    responseFormat: responseFormat(request),
-    tools: request.tools.map(tool),
-    toolChoice: toolChoice(request.toolChoice),
-    headers: request.http?.headers,
-    providerOptions: providerOptions(request.providerOptions),
-  }
-}
-
-function prompt(request: LLMRequest): LanguageModelV3Prompt {
-  const system = request.system.map((part) => part.text).filter(Boolean).join("\n\n")
-  const messages = request.messages.flatMap(message)
-  if (!system.length) return messages
-  return [{ role: "system", content: system }, ...messages]
-}
-
-function message(input: LLMRequest["messages"][number]): LanguageModelV3Message[] {
-  switch (input.role) {
-    case "system":
-      return [{ role: "system", content: input.content.flatMap(text).join("\n\n") }]
-    case "user":
-      return [{ role: "user", content: input.content.flatMap(userPart) }]
-    case "assistant":
-      return [{ role: "assistant", content: input.content.flatMap(assistantPart) }]
-    case "tool": {
-      const content = input.content.flatMap(toolResultPart)
-      return content.length ? [{ role: "tool", content }] : []
-    }
-  }
-}
-
-function text(part: ContentPart) {
-  return part.type === "text" ? [part.text] : []
-}
-
-function userPart(part: ContentPart): UserContent {
-  if (part.type === "text") return [{ type: "text", text: part.text }]
-  if (part.type === "media") return [{ type: "file", mediaType: part.mediaType, data: part.data, filename: part.filename }]
-  return []
-}
-
-function assistantPart(part: ContentPart): AssistantContent {
-  switch (part.type) {
-    case "text":
-      return [{ type: "text", text: part.text }]
-    case "media":
-      return [{ type: "file", mediaType: part.mediaType, data: part.data, filename: part.filename }]
-    case "reasoning":
-      return [{ type: "reasoning", text: part.text }]
-    case "tool-call":
-      return [
-        {
-          type: "tool-call",
-          toolCallId: part.id,
-          toolName: part.name,
-          input: part.input,
-          providerExecuted: part.providerExecuted,
-        },
-      ]
-    case "tool-result":
-      return toolResultPart(part)
-  }
-}
-
-function toolResultPart(part: ContentPart): ToolResultContent[] {
-  if (part.type !== "tool-result") return []
-  return [
-    {
-      type: "tool-result",
-      toolCallId: part.id,
-      toolName: part.name,
-      output: toolOutput(part.result),
-    },
-  ]
-}
-
-function toolOutput(result: ToolResultValue) {
-  switch (result.type) {
-    case "text":
-    case "error":
-      return { type: "text" as const, value: messageValue(result.value) }
-  }
-  return { type: "json" as const, value: jsonValue(result.value) }
-}
-
-function tool(input: ToolDefinition): LanguageModelV3FunctionTool {
-  return {
-    type: "function",
-    name: input.name,
-    description: input.description,
-    inputSchema: input.inputSchema as JSONSchema7,
-  }
-}
-
-function toolChoice(input: LLMRequest["toolChoice"]): LanguageModelV3ToolChoice | undefined {
-  if (!input) return undefined
-  if (input.type === "tool") return input.name === undefined ? undefined : { type: "tool", toolName: input.name }
-  return { type: input.type }
-}
-
-function responseFormat(request: LLMRequest): LanguageModelV3CallOptions["responseFormat"] {
-  if (request.responseFormat?.type === "json") return { type: "json", schema: request.responseFormat.schema as JSONSchema7 }
-  if (request.responseFormat) return { type: "text" }
-}
-
-function providerOptions(input: LLMRequest["providerOptions"]): SharedV3ProviderOptions | undefined {
-  if (!input) return undefined
-  return Object.fromEntries(Object.entries(input).map(([key, value]) => [key, jsonObject(value)]))
-}
-
-function streamLanguage(language: LanguageModelV3, options: LanguageModelV3CallOptions) {
-  const state = { step: 0, toolNames: {} as Record<string, string> }
-  return Stream.concat(
-    Stream.make(LLMEvent.stepStart({ index: state.step })),
-    Stream.unwrap(
-      Effect.tryPromise({
-        try: () => language.doStream(options),
-        catch: (error) => llmError("doStream", error),
-      }).pipe(
-        Effect.map((result) =>
-          Stream.fromReadableStream({
-            evaluate: () => result.stream,
-            onError: (error) => llmError("readStream", error),
-          }).pipe(
-            Stream.mapEffect((event) => streamPartEvents(state, event)),
-            Stream.flatMap((events) => Stream.fromIterable(events)),
-          ),
-        ),
-      ),
-    ),
-  )
-}
-
-function streamPartEvents(
-  state: { step: number; toolNames: Record<string, string> },
-  event: LanguageModelV3StreamPart,
-): Effect.Effect<ReadonlyArray<LLMEvent>, LLMError> {
-  switch (event.type) {
-    case "stream-start":
-    case "response-metadata":
-    case "raw":
-    case "file":
-    case "source":
-    case "tool-approval-request":
-      return Effect.succeed([])
-    case "text-start":
-      return Effect.succeed([LLMEvent.textStart({ id: event.id, providerMetadata: providerMetadata(event.providerMetadata) })])
-    case "text-delta":
-      return Effect.succeed([
-        LLMEvent.textDelta({ id: event.id, text: event.delta, providerMetadata: providerMetadata(event.providerMetadata) }),
-      ])
-    case "text-end":
-      return Effect.succeed([LLMEvent.textEnd({ id: event.id, providerMetadata: providerMetadata(event.providerMetadata) })])
-    case "reasoning-start":
-      return Effect.succeed([
-        LLMEvent.reasoningStart({ id: event.id, providerMetadata: providerMetadata(event.providerMetadata) }),
-      ])
-    case "reasoning-delta":
-      return Effect.succeed([
-        LLMEvent.reasoningDelta({ id: event.id, text: event.delta, providerMetadata: providerMetadata(event.providerMetadata) }),
-      ])
-    case "reasoning-end":
-      return Effect.succeed([
-        LLMEvent.reasoningEnd({ id: event.id, providerMetadata: providerMetadata(event.providerMetadata) }),
-      ])
-    case "tool-input-start":
-      state.toolNames[event.id] = event.toolName
-      return Effect.succeed([
-        LLMEvent.toolInputStart({ id: event.id, name: event.toolName, providerMetadata: providerMetadata(event.providerMetadata) }),
-      ])
-    case "tool-input-delta":
-      return Effect.succeed([LLMEvent.toolInputDelta({ id: event.id, name: state.toolNames[event.id] ?? "unknown", text: event.delta })])
-    case "tool-input-end":
-      return Effect.succeed([
-        LLMEvent.toolInputEnd({ id: event.id, name: state.toolNames[event.id] ?? "unknown", providerMetadata: providerMetadata(event.providerMetadata) }),
-      ])
-    case "tool-call":
-      state.toolNames[event.toolCallId] = event.toolName
-      return Effect.succeed([
-        LLMEvent.toolCall({
-          id: event.toolCallId,
-          name: event.toolName,
-          input: parseToolInput(event.input),
-          providerExecuted: event.providerExecuted,
-          providerMetadata: providerMetadata(event.providerMetadata),
-        }),
-      ])
-    case "tool-result":
-      delete state.toolNames[event.toolCallId]
-      return Effect.succeed([
-        LLMEvent.toolResult({
-          id: event.toolCallId,
-          name: event.toolName,
-          result: ToolResultValue.make(event.result, event.isError ? "error" : "json"),
-          providerExecuted: true,
-          providerMetadata: providerMetadata(event.providerMetadata),
-        }),
-      ])
-    case "finish":
-      return Effect.succeed([
-        LLMEvent.stepFinish({
-          index: state.step++,
-          reason: finishReason(event.finishReason),
-          usage: usage(event.usage),
-          providerMetadata: providerMetadata(event.providerMetadata),
-        }),
-        LLMEvent.finish({
-          reason: finishReason(event.finishReason),
-          usage: usage(event.usage),
-          providerMetadata: providerMetadata(event.providerMetadata),
-        }),
-      ])
-    case "error":
-      return Effect.fail(llmError("stream", event.error))
-  }
-}
-
-function usage(input: Extract<LanguageModelV3StreamPart, { type: "finish" }>["usage"]): UsageInput | undefined {
-  const output = {
-    inputTokens: input.inputTokens.total,
-    nonCachedInputTokens: input.inputTokens.noCache,
-    cacheReadInputTokens: input.inputTokens.cacheRead,
-    cacheWriteInputTokens: input.inputTokens.cacheWrite,
-    outputTokens: input.outputTokens.total,
-    reasoningTokens: input.outputTokens.reasoning,
-    totalTokens:
-      input.inputTokens.total === undefined || input.outputTokens.total === undefined
-        ? undefined
-        : input.inputTokens.total + input.outputTokens.total,
-  }
-  return Object.values(output).some((value) => value !== undefined) ? output : undefined
-}
-
-function finishReason(value: unknown): FinishReason {
-  return Schema.is(FinishReason)(value) ? value : "unknown"
-}
-
-function providerMetadata(value: unknown) {
-  return Schema.is(ProviderMetadata)(value) ? value : undefined
-}
-
-function parseToolInput(value: string) {
-  try {
-    return JSON.parse(value) as unknown
-  } catch {
-    return value
-  }
-}
-
-function jsonObject(input: Record<string, unknown>) {
-  return Object.fromEntries(Object.entries(input).map(([key, value]) => [key, jsonValue(value)]))
-}
-
-function jsonValue(input: unknown): JSONValue {
-  try {
-    const encoded = JSON.stringify(input)
-    return encoded === undefined ? null : (JSON.parse(encoded) as JSONValue)
-  } catch {
-    return messageValue(input)
-  }
-}
-
-function messageValue(input: unknown) {
-  if (typeof input === "string") return input
-  try {
-    return JSON.stringify(input) ?? String(input)
-  } catch {
-    return String(input)
-  }
-}
-
-function llmError(method: string, error: unknown) {
-  const reason =
-    error instanceof LLMError
-      ? new InvalidProviderOutputReason({ message: error.message })
-      : new UnknownProviderReason({ message: error instanceof Error ? error.message : String(error) })
-  return new LLMError({
-    module: "AISDK",
-    method,
-    reason,
-  })
-}

packages/core/src/background-job.ts

@@ -2,6 +2,7 @@ export * as BackgroundJob from "./background-job"
 
 import { Cause, Clock, Context, Deferred, Effect, Exit, Layer, Scope, SynchronizedRef } from "effect"
 import { Identifier } from "./id/id"
+import { makeGlobalNode } from "./effect/app-node"
 
 export type Status = "running" | "completed" | "error" | "cancelled"
 
@@ -362,3 +363,5 @@ export const make = Effect.gen(function* () {
 export const layer = Layer.effect(Service, make)
 
 export const defaultLayer = layer
+
+export const node = makeGlobalNode({ service: Service, layer, deps: [] })

packages/core/src/catalog.ts

@@ -1,5 +1,6 @@
 export * as Catalog from "./catalog"
 
+import { makeLocationNode } from "./effect/app-node"
 import { Array, Context, Effect, Layer, Option, Order, pipe, Schema } from "effect"
 import { Catalog } from "@opencode-ai/schema/catalog"
 import { ModelV2 } from "./model"
@@ -69,21 +70,38 @@ export const layer = Layer.effect(
 
     const available = (provider: ProviderV2.Info, integration: Integration.Info | undefined) => {
       if (provider.disabled) return false
-      if (typeof provider.settings?.apiKey === "string") return true
+      if (typeof provider.request.body.apiKey === "string") return true
       if (integration?.connections.length) return true
       return provider.integrationID === undefined && !integration
     }
 
     const projectModel = (model: ModelV2.Info, provider: ProviderV2.Info) => {
+      const api =
+        model.api.type === "native" && !model.api.url && Object.keys(model.api.settings).length === 0
+          ? { ...provider.api, id: model.api.id }
+          : model.api.type === "aisdk" && provider.api.type === "aisdk" && !model.api.url
+            ? { ...model.api, url: provider.api.url, settings: { ...provider.api.settings, ...model.api.settings } }
+            : model.api.type === "aisdk" && provider.api.type === "aisdk"
+              ? { ...model.api, settings: { ...provider.api.settings, ...model.api.settings } }
+              : model.api
+      const request = {
+        headers: { ...provider.request.headers, ...model.request.headers },
+        body: { ...provider.request.body, ...model.request.body },
+        variant: model.request.variant,
+      }
       return ModelV2.Info.make({
         ...model,
-        package: model.package ?? provider.package,
-        settings: ProviderV2.mergeOverlay(provider.settings, model.settings),
-        headers: ProviderV2.mergeHeaders(provider.headers, model.headers),
-        body: ProviderV2.mergeOverlay(provider.body, model.body),
+        api,
+        request,
       })
     }
 
+    const normalizeApi = (item: ProviderV2.MutableInfo | ModelV2.MutableInfo) => {
+      if (typeof item.request.body.baseURL !== "string") return
+      item.api.url = item.request.body.baseURL
+      delete item.request.body.baseURL
+    }
+
     const state = State.create<Data, Draft>({
       initial: () => ({ providers: new Map() }),
       draft: (draft) => {
@@ -101,6 +119,7 @@ export const layer = Layer.effect(
                 draft.providers.set(providerID, current)
               }
               fn(current.provider)
+              normalizeApi(current.provider)
             },
             remove: (providerID) => {
               draft.providers.delete(providerID)
@@ -123,6 +142,7 @@ export const layer = Layer.effect(
               fn(model)
               model.id = modelID
               model.providerID = providerID
+              normalizeApi(model)
             },
             remove: (providerID, modelID) => {
               draft.providers.get(providerID)?.models.delete(modelID)
@@ -216,6 +236,11 @@ export const layer = Layer.effect(
           if (!record) return
           const provider = record.provider
 
+          // TODO: Remove these provider-specific assumptions once model syncing reliably reports available deployments.
+          if (providerID === ProviderV2.ID.azure || providerID === ProviderV2.ID.make("azure-cognitive-services")) {
+            return
+          }
+
           if (providerID === ProviderV2.ID.opencode) {
             const gpt5Nano = record.models.get(ModelV2.ID.make("gpt-5-nano"))
             if (gpt5Nano?.enabled && gpt5Nano.status === "active") return projectModel(gpt5Nano, provider)
@@ -272,3 +297,5 @@ export const locationLayer = layer.pipe(
   Layer.provideMerge(Integration.locationLayer),
   Layer.provideMerge(Policy.locationLayer),
 )
+
+export const node = makeLocationNode({ service: Service, layer, deps: [EventV2.node, Policy.node, Integration.node] })

packages/core/src/command.ts

@@ -1,5 +1,6 @@
 export * as CommandV2 from "./command"
 
+import { makeLocationNode } from "./effect/app-node"
 import { Context, Effect, Layer, Types } from "effect"
 import { Command } from "@opencode-ai/schema/command"
 import { State } from "./state"
@@ -59,3 +60,5 @@ export const layer = Layer.effect(
 )
 
 export const locationLayer = layer
+
+export const node = makeLocationNode({ service: Service, layer, deps: [] })

packages/core/src/config.ts

@@ -1,5 +1,6 @@
 export * as Config from "./config"
 
+import { makeLocationNode } from "./effect/app-node"
 import path from "path"
 import { type ParseError, parse } from "jsonc-parser"
 import { Context, Effect, Layer, Option, Schema } from "effect"
@@ -218,3 +219,9 @@ export const layer = Layer.effect(
 )
 
 export const locationLayer = layer.pipe(Layer.provideMerge(Policy.locationLayer))
+
+export const node = makeLocationNode({
+  service: Service,
+  layer,
+  deps: [FSUtil.node, Global.node, Location.node, Policy.node],
+})

packages/core/src/config/mcp.ts

@@ -3,6 +3,15 @@ export * as ConfigMCP from "./mcp"
 import { Schema } from "effect"
 import { PositiveInt } from "../schema"
 
+export class Timeout extends Schema.Class<Timeout>("ConfigV2.MCP.Timeout")({
+  startup: PositiveInt.pipe(Schema.optional).annotate({
+    description: "Maximum time in milliseconds to establish and initialize the MCP server.",
+  }),
+  request: PositiveInt.pipe(Schema.optional).annotate({
+    description: "Maximum time in milliseconds to wait for each MCP request after initialization.",
+  }),
+}) {}
+
 export class Local extends Schema.Class<Local>("ConfigV2.MCP.Local")({
   type: Schema.Literal("local"),
   command: Schema.String.pipe(Schema.Array),
@@ -11,7 +20,7 @@ export class Local extends Schema.Class<Local>("ConfigV2.MCP.Local")({
   }),
   environment: Schema.Record(Schema.String, Schema.String).pipe(Schema.optional),
   disabled: Schema.Boolean.pipe(Schema.optional),
-  timeout: PositiveInt.pipe(Schema.optional),
+  timeout: Timeout.pipe(Schema.optional),
 }) {}
 
 export class OAuth extends Schema.Class<OAuth>("ConfigV2.MCP.OAuth")({
@@ -28,12 +37,12 @@ export class Remote extends Schema.Class<Remote>("ConfigV2.MCP.Remote")({
   headers: Schema.Record(Schema.String, Schema.String).pipe(Schema.optional),
   oauth: Schema.Union([OAuth, Schema.Literal(false)]).pipe(Schema.optional),
   disabled: Schema.Boolean.pipe(Schema.optional),
-  timeout: PositiveInt.pipe(Schema.optional),
+  timeout: Timeout.pipe(Schema.optional),
 }) {}
 
 export const Server = Schema.Union([Local, Remote]).pipe(Schema.toTaggedUnion("type"))
 
 export class Info extends Schema.Class<Info>("ConfigV2.MCP")({
-  timeout: PositiveInt.pipe(Schema.optional),
+  timeout: Timeout.pipe(Schema.optional),
   servers: Schema.Record(Schema.String, Server).pipe(Schema.optional),
 }) {}

packages/core/src/config/plugin/provider.ts

@@ -52,22 +52,17 @@ export const Plugin = define({
             const providerID = id
             catalog.provider.update(providerID, (provider) => {
               if (item.name !== undefined) provider.name = item.name
-              if (item.package !== undefined) provider.package = item.package
-              if (item.settings !== undefined)
-                provider.settings = ProviderV2.mergeOverlay(provider.settings, item.settings)
-              if (item.headers !== undefined) provider.headers = ProviderV2.mergeHeaders(provider.headers, item.headers)
-              if (item.body !== undefined) provider.body = ProviderV2.mergeOverlay(provider.body, item.body)
+              if (item.api !== undefined) provider.api = { ...item.api }
+              if (item.request !== undefined) {
+                Object.assign(provider.request.headers, item.request.headers)
+                Object.assign(provider.request.body, item.request.body)
+              }
             })
             for (const [id, config] of Object.entries(item.models ?? {})) {
               catalog.model.update(providerID, id, (model) => {
                 if (config.family !== undefined) model.family = config.family
                 if (config.name !== undefined) model.name = config.name
-                if (config.modelID !== undefined) model.modelID = config.modelID
-                if (config.package !== undefined) model.package = config.package
-                if (config.settings !== undefined)
-                  model.settings = ProviderV2.mergeOverlay(model.settings, config.settings)
-                if (config.headers !== undefined) model.headers = ProviderV2.mergeHeaders(model.headers, config.headers)
-                if (config.body !== undefined) model.body = ProviderV2.mergeOverlay(model.body, config.body)
+                if (config.api !== undefined) model.api = { ...model.api, ...config.api }
                 if (config.capabilities !== undefined) {
                   model.capabilities = {
                     tools: config.capabilities.tools,
@@ -75,21 +70,24 @@ export const Plugin = define({
                     output: [...config.capabilities.output],
                   }
                 }
+                if (config.request !== undefined) {
+                  Object.assign(model.request.headers, config.request.headers)
+                  Object.assign(model.request.body, config.request.body)
+                  if (config.request.variant !== undefined) model.request.variant = config.request.variant
+                }
                 if (config.variants !== undefined) {
-                  model.variants ??= []
                   for (const variant of config.variants) {
                     let existing = model.variants.find((item) => item.id === variant.id)
                     if (!existing) {
                       existing = {
                         id: variant.id,
+                        headers: {},
+                        body: {},
                       }
                       model.variants.push(existing)
                     }
-                    if (variant.settings !== undefined)
-                      existing.settings = ProviderV2.mergeOverlay(existing.settings, variant.settings)
-                    if (variant.headers !== undefined)
-                      existing.headers = ProviderV2.mergeHeaders(existing.headers, variant.headers)
-                    if (variant.body !== undefined) existing.body = ProviderV2.mergeOverlay(existing.body, variant.body)
+                    Object.assign(existing.headers, variant.headers)
+                    Object.assign(existing.body, variant.body)
                   }
                 }
                 if (config.cost !== undefined) {

packages/core/src/config/plugin/reference.ts

@@ -25,6 +25,8 @@ export const Plugin = define({
           const directory = doc.path ? path.dirname(doc.path) : location.directory
           for (const [name, entry] of Object.entries(doc.info.references ?? {})) {
             if (!validAlias(name)) continue
+            const description = typeof entry === "string" ? undefined : entry.description
+            const hidden = typeof entry === "string" ? undefined : entry.hidden
             entries.set(
               name,
               local(entry)
@@ -33,15 +35,15 @@ export const Plugin = define({
                     path: AbsolutePath.make(
                       localPath(directory, global.home, typeof entry === "string" ? entry : entry.path),
                     ),
-                    description: typeof entry === "string" ? undefined : entry.description,
-                    hidden: typeof entry === "string" ? undefined : entry.hidden,
+                    ...(description === undefined ? {} : { description }),
+                    ...(hidden === undefined ? {} : { hidden }),
                   })
                 : Reference.GitSource.make({
                     type: "git",
                     repository: typeof entry === "string" ? entry : entry.repository,
-                    branch: typeof entry === "string" ? undefined : entry.branch,
-                    description: typeof entry === "string" ? undefined : entry.description,
-                    hidden: typeof entry === "string" ? undefined : entry.hidden,
+                    ...(entry.branch === undefined ? {} : { branch: entry.branch }),
+                    ...(description === undefined ? {} : { description }),
+                    ...(hidden === undefined ? {} : { hidden }),
                   }),
             )
           }

packages/core/src/config/provider.ts

@@ -1,17 +1,12 @@
 export * as ConfigProvider from "./provider"
 
 import { Schema } from "effect"
+import { ProviderV2 } from "../provider"
 import { ModelV2 } from "../model"
 
-export const Overlays = {
-  settings: Schema.Record(Schema.String, Schema.Unknown).pipe(Schema.optional),
+export class Request extends Schema.Class<Request>("ConfigV2.Provider.Request")({
   headers: Schema.Record(Schema.String, Schema.String).pipe(Schema.optional),
   body: Schema.Record(Schema.String, Schema.Unknown).pipe(Schema.optional),
-}
-
-export class Request extends Schema.Class<Request>("ConfigV2.Provider.Request")({
-  headers: Overlays.headers,
-  body: Overlays.body,
 }) {}
 
 class Cache extends Schema.Class<Cache>("ConfigV2.Model.Cost.Cache")({
@@ -35,16 +30,32 @@ class Limit extends Schema.Class<Limit>("ConfigV2.Model.Limit")({
   output: Schema.Int.pipe(Schema.optional),
 }) {}
 
+const ModelApi = Schema.Union([
+  Schema.Struct({
+    id: ModelV2.ID.pipe(Schema.optional),
+    ...ProviderV2.AISDK.fields,
+  }),
+  Schema.Struct({
+    id: ModelV2.ID.pipe(Schema.optional),
+    ...ProviderV2.Native.fields,
+  }),
+  Schema.Struct({
+    id: ModelV2.ID,
+  }),
+])
+
 class Model extends Schema.Class<Model>("ConfigV2.Model")({
-  modelID: ModelV2.ID.pipe(Schema.optional),
   family: ModelV2.Family.pipe(Schema.optional),
   name: Schema.String.pipe(Schema.optional),
-  package: Schema.String.pipe(Schema.optional),
-  ...Overlays,
+  api: ModelApi.pipe(Schema.optional),
   capabilities: ModelV2.Capabilities.pipe(Schema.optional),
+  request: Schema.Struct({
+    ...Request.fields,
+    variant: Schema.String.pipe(Schema.optional),
+  }).pipe(Schema.optional),
   variants: Schema.Struct({
     id: ModelV2.VariantID,
-    ...Overlays,
+    ...Request.fields,
   }).pipe(Schema.Array, Schema.optional),
   cost: Schema.Union([Cost, Cost.pipe(Schema.Array)]).pipe(Schema.optional),
   disabled: Schema.Boolean.pipe(Schema.optional),
@@ -54,7 +65,7 @@ class Model extends Schema.Class<Model>("ConfigV2.Model")({
 export class Info extends Schema.Class<Info>("ConfigV2.Provider")({
   name: Schema.String.pipe(Schema.optional),
   env: Schema.String.pipe(Schema.Array, Schema.optional),
-  package: Schema.String.pipe(Schema.optional),
-  ...Overlays,
+  api: ProviderV2.Api.pipe(Schema.optional),
+  request: Request.pipe(Schema.optional),
   models: Schema.Record(Schema.String, Model).pipe(Schema.optional),
 }) {}

packages/core/src/control-plane/move-session.ts

@@ -6,9 +6,9 @@ import { Git } from "../git"
 import { Location } from "../location"
 import { ProjectV2 } from "../project"
 import { SessionV2 } from "../session"
-import { SessionExecution } from "../session/execution"
 import { SessionEvent } from "../session/event"
 import { SessionSchema } from "../session/schema"
+import { SessionStore } from "../session/store"
 import { AbsolutePath, RelativePath } from "../schema"
 import path from "path"
 
@@ -71,10 +71,11 @@ export const layer = Layer.effect(
     const git = yield* Git.Service
     const events = yield* EventV2.Service
     const project = yield* ProjectV2.Service
-    const session = yield* SessionV2.Service
+    const sessions = yield* SessionStore.Service
 
     const moveSession = Effect.fn("MoveSession.moveSession")(function* (input: Input) {
-      const current = yield* session.get(input.sessionID)
+      const current = yield* sessions.get(input.sessionID)
+      if (!current) return yield* new SessionV2.NotFoundError({ sessionID: input.sessionID })
       const directory = AbsolutePath.make(input.destination.directory)
       if (current.location.directory === directory) return
 
@@ -143,6 +144,5 @@ export const defaultLayer = layer.pipe(
   Layer.provide(Git.defaultLayer),
   Layer.provide(EventV2.defaultLayer),
   Layer.provide(ProjectV2.defaultLayer),
-  Layer.provide(SessionExecution.noopLayer),
-  Layer.provide(SessionV2.defaultLayer),
+  Layer.provide(SessionStore.defaultLayer),
 )

packages/core/src/credential.ts

@@ -5,6 +5,7 @@ import { Context, Effect, Layer, Schema } from "effect"
 import { Credential } from "@opencode-ai/schema/credential"
 import { Integration } from "@opencode-ai/schema/integration"
 import { Database } from "./database/database"
+import { makeGlobalNode } from "./effect/app-node"
 import { CredentialTable } from "./credential/sql"
 
 export const ID = Credential.ID
@@ -135,3 +136,5 @@ export const layer = Layer.effect(
 )
 
 export const defaultLayer = layer.pipe(Layer.provide(Database.defaultLayer))
+
+export const node = makeGlobalNode({ service: Service, layer, deps: [Database.node] })

packages/core/src/cross-spawn-spawner.ts

@@ -24,8 +24,8 @@ import {
 import * as NodeChildProcess from "node:child_process"
 import { PassThrough } from "node:stream"
 import launch from "cross-spawn"
-import { LayerNode } from "./effect/layer-node"
-import { filesystem, path } from "./effect/layer-node-platform"
+import { makeGlobalNode } from "./effect/app-node"
+import { filesystem, path } from "./effect/app-node-platform"
 
 const toError = (err: unknown): Error => (err instanceof globalThis.Error ? err : new globalThis.Error(String(err)))
 
@@ -503,6 +503,6 @@ export const layer: Layer.Layer<ChildProcessSpawner, never, FileSystem.FileSyste
 )
 
 export const defaultLayer = layer.pipe(Layer.provide(NodeFileSystem.layer), Layer.provide(NodePath.layer))
-export const node = LayerNode.make(layer, [filesystem, path])
+export const node = makeGlobalNode({ service: ChildProcessSpawner, layer, deps: [filesystem, path] })
 
 export * as CrossSpawnSpawner from "./cross-spawn-spawner"

packages/core/src/database/database.ts

@@ -8,7 +8,7 @@ import { Flag } from "../flag/flag"
 import { isAbsolute, join } from "path"
 import { DatabaseMigration } from "./migration"
 import { InstallationChannel } from "../installation/version"
-import { LayerNode } from "../effect/layer-node"
+import { makeGlobalNode } from "../effect/app-node"
 
 const makeDatabase = EffectDrizzleSqlite.makeWithDefaults()
 type DatabaseShape = Effect.Success<typeof makeDatabase>
@@ -60,4 +60,4 @@ export const defaultLayer = Layer.unwrap(
   }),
 ).pipe(Layer.provide(Global.defaultLayer))
 
-export const node = LayerNode.make(layerFromPath(path()), [])
+export const node = makeGlobalNode({ service: Service, layer: layerFromPath(path()), deps: [] })

packages/core/src/effect/app-node-builder.ts

@@ -0,0 +1,24 @@
+import { Layer } from "effect"
+import { buildLocationServiceMap } from "../location-services"
+import { LocationServiceMap } from "../location-service-map"
+import { LayerNode } from "./layer-node"
+import { makeGlobalNode } from "./app-node"
+
+export function build<A, E>(root: LayerNode.Node<A, E, any>, replacements?: readonly LayerNode.Replacement[]) {
+  const replacementMap = new Map(replacements?.map((item) => [item.source, item.replacement]))
+
+  if (!LayerNode.hasUnbound(root, LocationServiceMap.node)) {
+    // If the location service map is not needed, we shouldn't pull it
+    // in. Compile the graph normally
+    return LayerNode.compile(root, replacementMap)
+  }
+
+  const locationMap = buildLocationServiceMap(replacementMap)
+  const locationMapNode = makeGlobalNode({ service: LocationServiceMap.Service, layer: locationMap, deps: [] })
+
+  const app = LayerNode.bind(root, LocationServiceMap.node, locationMapNode)
+
+  return LayerNode.compile(app, replacementMap)
+}
+
+export * as AppNodeBuilder from "./app-node-builder"

packages/core/src/effect/app-node-platform.ts

@@ -0,0 +1,18 @@
+import { NodeFileSystem, NodePath } from "@effect/platform-node"
+import { LLMClient, RequestExecutor } from "@opencode-ai/llm/route"
+import { FileSystem, Path } from "effect"
+import { FetchHttpClient } from "effect/unstable/http"
+import { HttpClient } from "effect/unstable/http"
+import { makeGlobalNode } from "./app-node"
+
+export const filesystem = makeGlobalNode({ service: FileSystem.FileSystem, layer: NodeFileSystem.layer, deps: [] })
+export const path = makeGlobalNode({ service: Path.Path, layer: NodePath.layer, deps: [] })
+export const httpClient = makeGlobalNode({ service: HttpClient.HttpClient, layer: FetchHttpClient.layer, deps: [] })
+export const requestExecutor = makeGlobalNode({
+  service: RequestExecutor.Service,
+  layer: RequestExecutor.layer,
+  deps: [httpClient],
+})
+export const llmClient = makeGlobalNode({ service: LLMClient.Service, layer: LLMClient.layer, deps: [requestExecutor] })
+
+export * as LayerNodePlatform from "./app-node-platform"

packages/core/src/effect/app-node.ts

@@ -0,0 +1,14 @@
+import { LayerNode } from "./layer-node"
+
+export const tags = LayerNode.tags({
+  location: ["global"],
+  global: [],
+})
+
+export type GlobalNode<A, E = never> = LayerNode.Node<A, E, (typeof tags.values)["global"]>
+export type LocationNode<A, E = never> = LayerNode.Node<A, E, (typeof tags.values)["location"]>
+
+export const makeGlobalNode = tags.make("global")
+export const makeLocationNode = tags.make("location")
+
+export * as Node from "./app-node"

packages/core/src/effect/layer-node-platform.ts

@@ -1,12 +0,0 @@
-import { NodeFileSystem, NodePath } from "@effect/platform-node"
-import { LLMClient, RequestExecutor } from "@opencode-ai/llm/route"
-import { FetchHttpClient } from "effect/unstable/http"
-import { LayerNode } from "./layer-node"
-
-export const filesystem = LayerNode.make(NodeFileSystem.layer, [])
-export const path = LayerNode.make(NodePath.layer, [])
-export const httpClient = LayerNode.make(FetchHttpClient.layer, [])
-export const requestExecutor = LayerNode.make(RequestExecutor.layer, [httpClient])
-export const llmClient = LayerNode.make(LLMClient.layer, [requestExecutor])
-
-export * as LayerNodePlatform from "./layer-node-platform"

packages/core/src/effect/layer-node.ts

@@ -1,10 +1,11 @@
-import { Layer } from "effect"
+import { Brand, Context, Layer } from "effect"
 
+type AnyNode = Node<unknown, unknown, any>
 type RuntimeLayer = Layer.Layer<never, unknown, unknown>
-type AnyNode = Node<unknown, unknown>
-type NodeList = readonly [] | readonly [AnyNode, ...AnyNode[]]
-type Output<Item> = [Item] extends [never] ? never : Item extends Node<infer A, unknown> ? A : never
-type Error<Item> = [Item] extends [never] ? never : Item extends Node<unknown, infer E> ? E : never
+type NodeList<Item extends AnyNode = AnyNode> = readonly [] | readonly [Item, ...Item[]]
+export type Output<Item> = [Item] extends [never] ? never : Item extends Node<infer A, unknown, any> ? A : never
+export type Error<Item> = [Item] extends [never] ? never : Item extends Node<unknown, infer E, any> ? E : never
+type NodeTag<Item> = [Item] extends [never] ? undefined : Item extends Node<unknown, unknown, infer T> ? T : never
 type Missing<Required, Dependencies extends NodeList> = Exclude<Required, Output<Dependencies[number]>>
 type CheckDependencies<Implementation extends Layer.Any, Dependencies extends NodeList> = [
   Missing<Layer.Services<Implementation>, Dependencies>,
@@ -14,89 +15,259 @@ type CheckDependencies<Implementation extends Layer.Any, Dependencies extends No
 declare const $OutputType: unique symbol
 declare const $ErrorType: unique symbol
 
-export type Node<A, E = never> = {
-  readonly kind: "layer" | "group"
+export type Tag<Name extends string = string> = Name & Brand.Brand<"LayerNode.Tag">
+
+const makeTag = Brand.nominal<Tag>()
+
+export interface Node<A, E = never, T extends Tag | undefined = undefined> {
+  readonly kind: "layer" | "unbound" | "group"
+  readonly name: string
+  readonly service?: Context.Service.Any
   readonly implementation?: Layer.Any
   readonly dependencies: readonly AnyNode[]
+  readonly tag?: T
   readonly [$OutputType]?: () => A
   readonly [$ErrorType]?: () => E
 }
 
-export function make<const Implementation extends Layer.Any, const Items extends NodeList>(
-  implementation: Implementation,
-  dependencies: Items & CheckDependencies<Implementation, NoInfer<Items>>,
-): Node<Layer.Success<Implementation>, Layer.Error<Implementation> | Error<Items[number]>> {
-  return { kind: "layer", implementation: implementation as Layer.Any, dependencies }
+type NodeIdentity =
+  | { readonly service: Context.Service.Any; readonly name?: never }
+  | { readonly name: string; readonly service?: never }
+type DistributiveOmit<A, K extends PropertyKey> = A extends unknown ? Omit<A, K> : never
+
+export type TagConfig = Readonly<Record<string, readonly string[]>>
+type TagNames<Config extends TagConfig> = keyof Config & string
+type NodeInTags<Names extends string> = Node<unknown, unknown, Tag<Names> | undefined>
+type CheckTags<Items extends NodeList, Names extends string> = [Exclude<Items[number], NodeInTags<Names>>] extends [
+  never,
+]
+  ? unknown
+  : { readonly "Invalid tag dependencies": Exclude<Items[number], NodeInTags<Names>> }
+
+export interface Tags<Config extends TagConfig> {
+  readonly values: { readonly [Name in TagNames<Config>]: Tag<Name> }
+  readonly make: <Name extends TagNames<Config>>(
+    name: Name,
+  ) => <const Implementation extends Layer.Any, const Items extends NodeList>(
+    input: DistributiveOmit<MakeInput<Implementation, Items, Tag<Name>>, "tag"> &
+      CheckTags<Items, Name | Extract<Config[Name][number], string>>,
+  ) => Node<Layer.Success<Implementation>, Layer.Error<Implementation> | Error<Items[number]>, Tag<Name>>
 }
 
-export function group<const Items extends NodeList>(
+export function tags<const Config extends { readonly [Name in keyof Config]: readonly (keyof Config & string)[] }>(
+  config: Config,
+): Tags<Config> {
+  const names = Object.keys(config) as TagNames<Config>[]
+  const values = Object.fromEntries(names.map((name) => [name, makeTag(name)])) as Tags<Config>["values"]
+  return {
+    values,
+    make: ((name: TagNames<Config>) => (input: DistributiveOmit<MakeInput<Layer.Any, NodeList, Tag>, "tag">) =>
+      make({ ...input, tag: values[name] })) as Tags<Config>["make"],
+  }
+}
+
+// Nodes ---------------------------------------------------------------------
+
+type MakeInput<
+  Implementation extends Layer.Any,
+  Items extends NodeList,
+  T extends Tag | undefined = undefined,
+> = NodeIdentity & {
+  readonly layer: Implementation
+  readonly deps: Items & CheckDependencies<Implementation, NoInfer<Items>>
+  readonly tag?: T
+}
+
+export function make<
+  const Implementation extends Layer.Any,
+  const Items extends NodeList,
+  const T extends Tag | undefined = undefined,
+>(
+  input: MakeInput<Implementation, Items, T>,
+): Node<Layer.Success<Implementation>, Layer.Error<Implementation> | Error<Items[number]>, T> {
+  return {
+    kind: "layer",
+    name: input.service !== undefined ? input.service.key : input.name,
+    service: input.service,
+    implementation: input.layer,
+    dependencies: input.deps,
+    tag: input.tag,
+  }
+}
+
+export function unbound<R, Shape, const T extends Tag>(service: Context.Key<R, Shape>, tag: T): Node<R, never, T> {
+  return {
+    kind: "unbound",
+    name: service.key,
+    service,
+    dependencies: [],
+    tag,
+  }
+}
+
+export function group<const Items extends readonly AnyNode[]>(
   dependencies: Items,
-): Node<Output<Items[number]>, Error<Items[number]>> {
-  return { kind: "group", dependencies }
+): Node<Output<Items[number]>, Error<Items[number]>, NodeTag<Items[number]>> {
+  return { kind: "group", name: "group", dependencies }
 }
 
-export type Replacement<A = unknown> = {
-  readonly source: Node<A, unknown>
-  readonly replacement: Node<A, unknown>
+export type Replacement = {
+  readonly source: Layer.Any
+  readonly replacement: Layer.Any
 }
 
 type CheckReplacementErrors<SourceError, ReplacementError> = [Exclude<ReplacementError, SourceError>] extends [never]
   ? unknown
   : { readonly "New replacement errors": Exclude<ReplacementError, SourceError> }
 
-export function replaceWithNode<A, E, E2>(
-  source: Node<A, E>,
-  replacement: Node<NoInfer<A>, E2> & CheckReplacementErrors<E, NoInfer<E2>>,
-): Replacement<A> {
+export function replace<A, E, R, E2>(
+  source: Layer.Layer<A, E, R>,
+  replacement: Layer.Layer<NoInfer<A>, E2, never> & CheckReplacementErrors<E, NoInfer<E2>>,
+): Replacement {
   return { source, replacement }
 }
 
-export function replace<A, E, E2>(
-  source: Node<A, E>,
-  replacement: Layer.Layer<NoInfer<A>, E2, never> & CheckReplacementErrors<E, NoInfer<E2>>,
-): Replacement<A> {
-  return { source, replacement: make(replacement as Layer.Layer<A, E2>, []) }
+// Tree -----------------------------------------------------------------------
+
+type Visit<Result> = (node: AnyNode, context: VisitContext<Result>) => Result
+
+type VisitContext<Result> = {
+  readonly cache: Map<AnyNode, Result>
+  readonly visit: (node: AnyNode) => Result
 }
 
-export function buildLayer<A, E>(node: Node<A, E>, options?: { readonly replacements?: readonly Replacement[] }) {
-  const replacements = new Map(options?.replacements?.map((item) => [item.source, item.replacement]))
-  const cache = new Map<AnyNode, RuntimeLayer>()
+function walk<Result>(
+  root: AnyNode,
+  visit: Visit<Result>,
+  options: {
+    readonly cache?: Map<AnyNode, Result>
+    readonly resolve?: (node: AnyNode) => AnyNode
+    readonly detectCycles?: boolean
+  } = {},
+) {
+  const cache = options.cache ?? new Map<AnyNode, Result>()
   const visiting = new Set<AnyNode>()
   const stack: AnyNode[] = []
-  const ids = new Map<AnyNode, number>()
 
-  const visit = (input: AnyNode): RuntimeLayer => {
-    const node = replacements.get(input) ?? input
-    const cached = cache.get(node)
-    if (cached) return cached
-    if (visiting.has(node)) {
-      const start = stack.indexOf(node)
-      const cycle = [...stack.slice(start), node].map((item) => `${item.kind}#${ids.get(item)}`).join(" -> ")
-      throw new Error(`Cycle detected in app graph: ${cycle}`)
+  const recur = (node: AnyNode): Result => {
+    const target = options.resolve?.(node) ?? node
+    const cached = cache.get(target)
+    if (cached !== undefined || cache.has(target)) return cached!
+
+    if (options.detectCycles !== false && visiting.has(target)) {
+      const start = stack.indexOf(target)
+      throw new Error(
+        `Cycle detected in layer tree: ${[...stack.slice(start), target].map((item) => item.name).join(" -> ")}`,
+      )
     }
-    if (!ids.has(node)) ids.set(node, ids.size + 1)
-    visiting.add(node)
-    stack.push(node)
+
+    visiting.add(target)
+    stack.push(target)
     try {
-      const dependencies = node.dependencies.map(visit)
-      const nonEmpty = dependencies as [RuntimeLayer, ...RuntimeLayer[]]
-      const result =
-        node.kind === "group"
-          ? dependencies.length === 0
-            ? Layer.empty
-            : Layer.mergeAll(...nonEmpty)
-          : dependencies.length === 0
-            ? (node.implementation as RuntimeLayer)
-            : Layer.provide(node.implementation as RuntimeLayer, nonEmpty)
-      cache.set(node, result)
+      const result = visit(target, { cache, visit: recur })
+      if (!cache.has(target)) cache.set(target, result)
       return result
     } finally {
       stack.pop()
-      visiting.delete(node)
+      visiting.delete(target)
     }
   }
 
-  return visit(node) as unknown as Layer.Layer<A, E, never>
+  return recur(root)
+}
+
+export function hoist<A, E, T extends Tag>(
+  root: Node<A, E, any>,
+  tag: T,
+): {
+  readonly node: Node<A, E>
+  readonly hoisted: Node<unknown, E>
+} {
+  const hoisted = new Map<string, AnyNode>()
+
+  const node = walk<AnyNode>(root, (node, context) => {
+    if (node.kind === "group") {
+      return { ...node, dependencies: node.dependencies.map(context.visit) }
+    }
+    if (node.tag === tag) {
+      const existing = hoisted.get(node.name)
+      if (existing && existing !== node) {
+        throw new Error(`Tag ${tag} has conflicting implementations for ${node.name}`)
+      }
+      hoisted.set(node.name, node)
+      return group([])
+    }
+    if (node.kind === "unbound") {
+      return node
+    }
+    return { ...node, dependencies: node.dependencies.map(context.visit) }
+  })
+
+  return {
+    node: node as Node<A, E>,
+    hoisted: group(Array.from(hoisted.values())) as Node<unknown, E>,
+  }
+}
+
+export function compile<A, E>(
+  root: Node<A, E, any>,
+  replacements?: ReadonlyMap<Layer.Any, Layer.Any>,
+): Layer.Layer<A, E> {
+  const cache = new Map<AnyNode, RuntimeLayer>()
+  const compileNode = (node: AnyNode) =>
+    walk<RuntimeLayer>(
+      node,
+      (node, context) => {
+        if (node.kind === "unbound") throw new Error(`Unbound layer node: ${node.name}`)
+        const dependencies = node.dependencies.flatMap(flatten).map(context.visit)
+        const implementation = (replacements?.get(node.implementation!) ?? node.implementation!) as RuntimeLayer
+        return dependencies.length === 0
+          ? implementation
+          : implementation.pipe(Layer.provide(dependencies as [RuntimeLayer, ...RuntimeLayer[]]))
+      },
+      { cache },
+    )
+  const layers = flatten(root).map((node) => compileNode(node))
+  const layer = layers.reduce<RuntimeLayer>((result, layer) => layer.pipe(Layer.provideMerge(result)), Layer.empty)
+  return layer as Layer.Layer<A, E>
+}
+
+export function hasUnbound(root: Node<unknown, unknown, any>, source: AnyNode): boolean {
+  if (source.kind !== "unbound") throw new Error(`Cannot check non-unbound layer node: ${source.name}`)
+  return walk<boolean>(root, (node, context) => {
+    if (node === source) return true
+    return node.dependencies.some(context.visit)
+  })
+}
+
+export function bind<A, E, T extends Tag | undefined>(
+  root: Node<A, E, T>,
+  source: AnyNode,
+  replacement: AnyNode,
+): Node<A, E, T> {
+  if (source.kind !== "unbound") throw new Error(`Cannot bind non-unbound layer node: ${source.name}`)
+  if (source.name !== replacement.name) {
+    throw new Error(`Cannot bind ${source.name} to ${replacement.name}`)
+  }
+  if (source.tag !== replacement.tag) {
+    throw new Error(`Cannot bind ${source.name} across tags`)
+  }
+  return walk<AnyNode>(
+    root,
+    (target, context) => {
+      if (target.kind === "unbound") return target
+      const dependencies: AnyNode[] = []
+      const clone = { ...target, dependencies }
+      context.cache.set(target, clone)
+      dependencies.push(...target.dependencies.map(context.visit))
+      return clone
+    },
+    { detectCycles: false, resolve: (node) => (node === source ? replacement : node) },
+  ) as Node<A, E, T>
+}
+
+function flatten(node: AnyNode): readonly AnyNode[] {
+  return node.kind === "group" ? node.dependencies.flatMap(flatten) : [node]
 }
 
 export * as LayerNode from "./layer-node"

packages/core/src/event.ts

@@ -1,13 +1,13 @@
 export * as EventV2 from "./event"
 
-import { Cause, Context, Effect, Layer, Option, PubSub, Schema, Stream } from "effect"
+import { Cause, Context, Effect, Layer, Option, PubSub, Queue, Schema, Stream } from "effect"
 import { Event } from "@opencode-ai/schema/event"
 import type { Data, Definition, Payload } from "@opencode-ai/schema/event"
-import { and, asc, eq, gt } from "drizzle-orm"
+import { and, asc, eq, gt, inArray } from "drizzle-orm"
 import { Database } from "./database/database"
 import { EventSequenceTable, EventTable } from "./event/sql"
 import { Location } from "./location"
-import { LayerNode } from "./effect/layer-node"
+import { makeGlobalNode } from "./effect/app-node"
 import { isDeepStrictEqual } from "node:util"
 import { Durable } from "@opencode-ai/schema/durable-event-manifest"
 
@@ -47,6 +47,71 @@ export class InvalidDurableEventError extends Schema.TaggedErrorClass<InvalidDur
   },
 ) {}
 
+const decodeSerializedEvent = (event: SerializedEvent): Payload => {
+  const definition = Durable.get(event.type)
+  if (!definition?.durable) {
+    throw new InvalidDurableEventError({ type: event.type, message: `Unknown durable event type ${event.type}` })
+  }
+  return {
+    id: event.id,
+    type: definition.type,
+    durable: { aggregateID: event.aggregateID, seq: event.seq, version: definition.durable.version },
+    data: Schema.decodeUnknownSync(definition.data)(event.data),
+  }
+}
+
+export const readAggregate = Effect.fn("EventV2.readAggregate")(function* <A>(
+  db: Database.Interface["db"],
+  input: {
+    readonly aggregateID: string
+    readonly after?: number
+    readonly limit: number
+    readonly manifest: {
+      readonly definitions: ReadonlyMap<string, Definition>
+      readonly schema: Schema.Decoder<A, never>
+    }
+  },
+) {
+  const after = input.after ?? -1
+  const rows = yield* db
+    .select()
+    .from(EventTable)
+    .where(
+      and(
+        eq(EventTable.aggregate_id, input.aggregateID),
+        gt(EventTable.seq, after),
+        inArray(EventTable.type, Array.from(input.manifest.definitions.keys())),
+      ),
+    )
+    .orderBy(asc(EventTable.seq))
+    .limit(input.limit + 1)
+    .all()
+    .pipe(Effect.orDie)
+  const page = rows.slice(0, input.limit)
+  const decode = Schema.decodeUnknownSync(input.manifest.schema)
+  const events = page.map((event) =>
+    decode({
+      id: event.id,
+      type: input.manifest.definitions.get(event.type)?.type ?? event.type,
+      durable: {
+        aggregateID: event.aggregate_id,
+        seq: event.seq,
+        version: input.manifest.definitions.get(event.type)?.durable?.version,
+      },
+      data: event.data,
+    }),
+  )
+  return {
+    events,
+    hasMore: rows.length > input.limit,
+  }
+})
+
+export class SubscriberOverflowError extends Schema.TaggedErrorClass<SubscriberOverflowError>()(
+  "EventV2.SubscriberOverflow",
+  { capacity: Schema.Int },
+) {}
+
 export const define = Event.define
 export const versionedType = Event.versionedType
 
@@ -84,6 +149,20 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/Event") {}
 
+export const allBounded = (events: Interface, capacity: number) =>
+  Effect.gen(function* () {
+    const queue = yield* Queue.dropping<Payload, SubscriberOverflowError>(capacity)
+    const unsubscribe = yield* events.listen((event) =>
+      Queue.offer(queue, event).pipe(
+        Effect.flatMap((accepted) =>
+          accepted ? Effect.void : Queue.fail(queue, new SubscriberOverflowError({ capacity })).pipe(Effect.asVoid),
+        ),
+      ),
+    )
+    yield* Effect.addFinalizer(() => unsubscribe.pipe(Effect.andThen(Queue.shutdown(queue)), Effect.asVoid))
+    return Stream.fromQueue(queue)
+  })
+
 export interface LayerOptions {
   readonly beforeAggregateRead?: (aggregateID: string) => Effect.Effect<void>
 }
@@ -459,19 +538,6 @@ export const layerWith = (options?: LayerOptions) =>
 
       const streamAll = (): Stream.Stream<Payload> => Stream.fromPubSub(pubsub.all)
 
-      const decodeSerializedEvent = (event: SerializedEvent) => {
-        const definition = Durable.get(event.type)
-        if (!definition?.durable) {
-          throw new InvalidDurableEventError({ type: event.type, message: `Unknown durable event type ${event.type}` })
-        }
-        return {
-          id: event.id,
-          type: definition.type,
-          durable: { aggregateID: event.aggregateID, seq: event.seq, version: definition.durable.version },
-          data: Schema.decodeUnknownSync(definition.data)(event.data),
-        }
-      }
-
       const readAfter = (aggregateID: string, after: number) =>
         (options?.beforeAggregateRead?.(aggregateID) ?? Effect.void).pipe(
           Effect.andThen(
@@ -569,6 +635,6 @@ export const layerWith = (options?: LayerOptions) =>
   )
 
 export const layer = layerWith()
-export const node = LayerNode.make(layer, [Database.node])
+export const node = makeGlobalNode({ service: Service, layer: layer, deps: [Database.node] })
 
 export const defaultLayer = layer.pipe(Layer.provide(Database.defaultLayer))

packages/core/src/file-mutation.ts

@@ -1,5 +1,6 @@
 export * as FileMutation from "./file-mutation"
 
+import { makeLocationNode } from "./effect/app-node"
 import { Context, Effect, Layer, Schema } from "effect"
 import { dirname } from "path"
 import { KeyedMutex } from "./effect/keyed-mutex"
@@ -192,6 +193,8 @@ function sameBytes(left: Uint8Array, right: Uint8Array) {
 
 export const locationLayer = layer
 
+export const node = makeLocationNode({ service: Service, layer, deps: [FSUtil.node] })
+
 /**
  * Deferred until the corresponding V2 integrations exist.
  */

packages/core/src/filesystem.ts

@@ -1,5 +1,6 @@
 export * as FileSystem from "./filesystem"
 
+import { makeLocationNode } from "./effect/app-node"
 import path from "path"
 import { Context, Effect, Layer, Schema } from "effect"
 import { FSUtil } from "./fs-util"
@@ -113,3 +114,9 @@ const baseLayer = Layer.effect(
 export const layer = baseLayer.pipe(Layer.provide(FileSystemSearch.locationLayer), Layer.provide(FSUtil.defaultLayer))
 
 export const locationLayer = layer
+
+export const node = makeLocationNode({
+  service: Service,
+  layer: baseLayer,
+  deps: [FSUtil.node, Location.node, FileSystemSearch.node],
+})

packages/core/src/filesystem/search.ts

@@ -1,5 +1,6 @@
 export * as FileSystemSearch from "./search"
 
+import { makeLocationNode } from "../effect/app-node"
 import path from "path"
 import { Context, Effect, Layer, Scope } from "effect"
 import { Fff } from "#fff"
@@ -229,6 +230,8 @@ export const fffLayer = Layer.effect(
   }),
 )
 
-export const locationLayer = Layer.unwrap(
-  Effect.sync(() => (Flag.OPENCODE_DISABLE_FFF || !Fff.available() ? ripgrepLayer : fffLayer)),
-)
+const layer = Layer.unwrap(Effect.sync(() => (Flag.OPENCODE_DISABLE_FFF || !Fff.available() ? ripgrepLayer : fffLayer)))
+
+export const locationLayer = layer
+
+export const node = makeLocationNode({ service: Service, layer, deps: [FSUtil.node, Location.node, Ripgrep.node] })

packages/core/src/filesystem/watcher.ts

@@ -3,6 +3,7 @@ export * as Watcher from "./watcher"
 // @ts-ignore
 import { createWrapper } from "@parcel/watcher/wrapper"
 import type ParcelWatcher from "@parcel/watcher"
+import { makeLocationNode } from "../effect/app-node"
 import { Cause, Context, Effect, Layer } from "effect"
 import { FileSystemWatcher } from "@opencode-ai/schema/filesystem-watcher"
 import path from "path"
@@ -133,3 +134,9 @@ export const layer = Layer.effect(
 )
 
 export const locationLayer = layer.pipe(Layer.provide(Config.locationLayer), Layer.provide(Git.defaultLayer))
+
+export const node = makeLocationNode({
+  service: Service,
+  layer,
+  deps: [FSUtil.node, Location.node, Config.node, Git.node, EventV2.node],
+})

packages/core/src/fs-util.ts

@@ -7,8 +7,8 @@ import { Context, Effect, FileSystem, Layer, Schema } from "effect"
 import type { PlatformError } from "effect/PlatformError"
 import { Glob } from "./util/glob"
 import { serviceUse } from "./effect/service-use"
-import { LayerNode } from "./effect/layer-node"
-import { filesystem } from "./effect/layer-node-platform"
+import { makeGlobalNode } from "./effect/app-node"
+import { filesystem } from "./effect/app-node-platform"
 
 export namespace FSUtil {
   export class FileSystemError extends Schema.TaggedErrorClass<FileSystemError>()("FileSystemError", {
@@ -201,7 +201,7 @@ export namespace FSUtil {
   )
 
   export const defaultLayer = layer.pipe(Layer.provide(NodeFileSystem.layer))
-  export const node = LayerNode.make(layer, [filesystem])
+  export const node = makeGlobalNode({ service: Service, layer: layer, deps: [filesystem] })
 
   // Pure helpers that don't need Effect (path manipulation, sync operations)
   export function mimeType(p: string): string {

packages/core/src/git.ts

@@ -7,7 +7,7 @@ import { ChildProcess } from "effect/unstable/process"
 import { AbsolutePath, RelativePath } from "./schema"
 import { FSUtil } from "./fs-util"
 import { AppProcess } from "./process"
-import { LayerNode } from "./effect/layer-node"
+import { makeGlobalNode } from "./effect/app-node"
 import { File } from "./file"
 import { KeyedMutex } from "./effect/keyed-mutex"
 
@@ -944,7 +944,7 @@ export const layer = Layer.effect(
 )
 
 export const defaultLayer = layer.pipe(Layer.provide(FSUtil.defaultLayer), Layer.provide(AppProcess.defaultLayer))
-export const node = LayerNode.make(layer, [FSUtil.node, AppProcess.node])
+export const node = makeGlobalNode({ service: Service, layer: layer, deps: [FSUtil.node, AppProcess.node] })
 
 interface Result {
   readonly exitCode: number

packages/core/src/global.ts

@@ -5,7 +5,7 @@ import os from "os"
 import { Context, Effect, Layer } from "effect"
 import { Flock } from "./util/flock"
 import { Flag } from "./flag/flag"
-import { LayerNode } from "./effect/layer-node"
+import { makeGlobalNode } from "./effect/app-node"
 
 const app = "opencode"
 const data = path.join(xdgData!, app)
@@ -77,7 +77,7 @@ export const layer = Layer.effect(
 )
 
 export const defaultLayer = layer
-export const node = LayerNode.make(layer, [])
+export const node = makeGlobalNode({ service: Service, layer: layer, deps: [] })
 
 export const layerWith = (input: Partial<Interface>) =>
   Layer.effect(

packages/core/src/image.ts

@@ -1,5 +1,6 @@
 export * as Image from "./image"
 
+import { makeLocationNode } from "./effect/app-node"
 import { Context, Effect, Layer, Schema } from "effect"
 import { Config } from "./config"
 import { FileSystem } from "./filesystem"
@@ -76,3 +77,5 @@ export const layer = Layer.effect(
 )
 
 export const locationLayer = layer.pipe(Layer.provide(Config.locationLayer))
+
+export const node = makeLocationNode({ service: Service, layer, deps: [Config.node] })