core: rename login param from url to server to remove pointless alias

drizzle-kit's jiti loader cannot resolve tsconfig @/ path aliases.
Switch all .sql.ts files to relative imports and add the missing
snapshot for the move_org_to_state custom migration.

.github/workflows/storybook.yml

@@ -0,0 +1,38 @@
+name: storybook
+
+on:
+  push:
+    branches: [dev]
+    paths:
+      - ".github/workflows/storybook.yml"
+      - "package.json"
+      - "bun.lock"
+      - "packages/storybook/**"
+      - "packages/ui/**"
+  pull_request:
+    branches: [dev]
+    paths:
+      - ".github/workflows/storybook.yml"
+      - "package.json"
+      - "bun.lock"
+      - "packages/storybook/**"
+      - "packages/ui/**"
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: storybook build
+    runs-on: blacksmith-4vcpu-ubuntu-2404
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: ./.github/actions/setup-bun
+
+      - name: Build Storybook
+        run: bun --cwd packages/storybook build

.opencode/opencode.jsonc

@@ -5,6 +5,11 @@
       "options": {},
     },
   },
+  "permission": {
+    "edit": {
+      "packages/opencode/migration/*": "deny",
+    },
+  },
   "mcp": {},
   "tools": {
     "github-triage": false,

.opencode/tool/github-pr-search.txt

@@ -1,6 +1,6 @@
 Use this tool to search GitHub pull requests by title and description.
 
-This tool searches PRs in the sst/opencode repository and returns LLM-friendly results including:
+This tool searches PRs in the anomalyco/opencode repository and returns LLM-friendly results including:
 - PR number and title
 - Author
 - State (open/closed/merged)

AGENTS.md

@@ -122,3 +122,7 @@ const table = sqliteTable("session", {
 - Avoid mocks as much as possible
 - Test actual implementation, do not duplicate logic into tests
 - Tests cannot run from repo root (guard: `do-not-run-tests-from-root`); run from package dirs like `packages/opencode`.
+
+## Type Checking
+
+- Always run `bun typecheck` from package directories (e.g., `packages/opencode`), never `tsc` directly.

nix/hashes.json

@@ -1,8 +1,8 @@
 {
   "nodeModules": {
-    "x86_64-linux": "sha256-pBTIT8Pgdm3272YhBjiAZsmj0SSpHTklh6lGc8YcMoE=",
-    "aarch64-linux": "sha256-prt039++d5UZgtldAN6+RVOR557ifIeusiy5XpzN8QU=",
-    "aarch64-darwin": "sha256-Y3f+cXcIGLqz6oyc5fG22t6CLD4wGkvwqO6RNXjFriQ=",
-    "x86_64-darwin": "sha256-BjbBBhQUgGhrlP56skABcrObvutNUZSWnrnPCg1OTKE="
+    "x86_64-linux": "sha256-+SMpaj0jeIHjlddAu6QIwojmWFVIiA8/G32hiQMjcOk=",
+    "aarch64-linux": "sha256-uo63IF6OCMab+O3ngn1sVxqIGJMm04HXuDgIRmXNTNk=",
+    "aarch64-darwin": "sha256-yB2tWm6AsX6UifnDqe7VldhN5zTQkDoqZ87AGQYjxT4=",
+    "x86_64-darwin": "sha256-nNhtqMSG4/y+uxjj14Jc5QQ7X6hQli9ni4v56XAvaAU="
   }
 }

package.json

@@ -43,6 +43,7 @@
       "dompurify": "3.3.1",
       "drizzle-kit": "1.0.0-beta.16-ea816b6",
       "drizzle-orm": "1.0.0-beta.16-ea816b6",
+      "effect": "4.0.0-beta.29",
       "ai": "5.0.124",
       "hono": "4.10.7",
       "hono-openapi": "1.1.2",

packages/app/e2e/AGENTS.md

@@ -71,6 +71,12 @@ test("test description", async ({ page, sdk, gotoSession }) => {
 - `closeDialog(page, dialog)` - Close any dialog
 - `openSidebar(page)` / `closeSidebar(page)` - Toggle sidebar
 - `withSession(sdk, title, callback)` - Create temp session
+- `withProject(...)` - Create temp project/workspace
+- `sessionIDFromUrl(url)` - Read session ID from URL
+- `slugFromUrl(url)` - Read workspace slug from URL
+- `waitSlug(page, skip?)` - Wait for resolved workspace slug
+- `trackSession(sessionID, directory?)` - Register session for fixture cleanup
+- `trackDirectory(directory)` - Register directory for fixture cleanup
 - `clickListItem(container, filter)` - Click list item by key/text
 
 **Selectors** (`selectors.ts`):
@@ -109,7 +115,7 @@ import { test, expect } from "@playwright/test"
 
 ### Error Handling
 
-Tests should clean up after themselves:
+Tests should clean up after themselves. Prefer fixture-managed cleanup:
 
 ```typescript
 test("test with cleanup", async ({ page, sdk, gotoSession }) => {
@@ -120,6 +126,11 @@ test("test with cleanup", async ({ page, sdk, gotoSession }) => {
 })
 ```
 
+- Prefer `withSession(...)` for temp sessions
+- In `withProject(...)` tests that create sessions or extra workspaces, call `trackSession(sessionID, directory?)` and `trackDirectory(directory)`
+- This lets fixture teardown abort, wait for idle, and clean up safely under CI concurrency
+- Avoid calling `sdk.session.delete(...)` directly
+
 ### Timeouts
 
 Default: 60s per test, 10s per assertion. Override when needed:
@@ -161,9 +172,10 @@ await page.keyboard.press(`${modKey}+Comma`) // Open settings
 1. Choose appropriate folder or create new one
 2. Import from `../fixtures`
 3. Use helper functions from `../actions` and `../selectors`
-4. Clean up any created resources
-5. Use specific selectors (avoid CSS classes)
-6. Test one feature per test file
+4. When validating routing, use shared helpers from `../actions`. Workspace URL slugs can be canonicalized on Windows, so assert against canonical or resolved workspace slugs.
+5. Clean up any created resources
+6. Use specific selectors (avoid CSS classes)
+7. Test one feature per test file
 
 ## Local Development
 

packages/app/e2e/actions.ts

@@ -3,13 +3,12 @@ import fs from "node:fs/promises"
 import os from "node:os"
 import path from "node:path"
 import { execSync } from "node:child_process"
-import { modKey, serverUrl } from "./utils"
+import { createSdk, modKey, resolveDirectory, serverUrl } from "./utils"
 import {
-  sessionItemSelector,
   dropdownMenuTriggerSelector,
   dropdownMenuContentSelector,
-  sessionHeaderSelector,
   projectMenuTriggerSelector,
+  projectCloseMenuSelector,
   projectWorkspacesToggleSelector,
   titlebarRightSelector,
   popoverBodySelector,
@@ -19,7 +18,6 @@ import {
   workspaceItemSelector,
   workspaceMenuTriggerSelector,
 } from "./selectors"
-import type { createSdk } from "./utils"
 
 export async function defocus(page: Page) {
   await page
@@ -62,9 +60,9 @@ export async function closeDialog(page: Page, dialog: Locator) {
 }
 
 export async function isSidebarClosed(page: Page) {
-  const main = page.locator("main")
-  const classes = (await main.getAttribute("class")) ?? ""
-  return classes.includes("xl:border-l")
+  const button = page.getByRole("button", { name: /toggle sidebar/i }).first()
+  await expect(button).toBeVisible()
+  return (await button.getAttribute("aria-expanded")) !== "true"
 }
 
 export async function toggleSidebar(page: Page) {
@@ -76,48 +74,34 @@ export async function openSidebar(page: Page) {
   if (!(await isSidebarClosed(page))) return
 
   const button = page.getByRole("button", { name: /toggle sidebar/i }).first()
-  const visible = await button
-    .isVisible()
-    .then((x) => x)
-    .catch(() => false)
+  await button.click()
 
-  if (visible) await button.click()
-  if (!visible) await toggleSidebar(page)
-
-  const main = page.locator("main")
-  const opened = await expect(main)
-    .not.toHaveClass(/xl:border-l/, { timeout: 1500 })
+  const opened = await expect(button)
+    .toHaveAttribute("aria-expanded", "true", { timeout: 1500 })
     .then(() => true)
     .catch(() => false)
 
   if (opened) return
 
   await toggleSidebar(page)
-  await expect(main).not.toHaveClass(/xl:border-l/)
+  await expect(button).toHaveAttribute("aria-expanded", "true")
 }
 
 export async function closeSidebar(page: Page) {
   if (await isSidebarClosed(page)) return
 
   const button = page.getByRole("button", { name: /toggle sidebar/i }).first()
-  const visible = await button
-    .isVisible()
-    .then((x) => x)
-    .catch(() => false)
+  await button.click()
 
-  if (visible) await button.click()
-  if (!visible) await toggleSidebar(page)
-
-  const main = page.locator("main")
-  const closed = await expect(main)
-    .toHaveClass(/xl:border-l/, { timeout: 1500 })
+  const closed = await expect(button)
+    .toHaveAttribute("aria-expanded", "false", { timeout: 1500 })
     .then(() => true)
     .catch(() => false)
 
   if (closed) return
 
   await toggleSidebar(page)
-  await expect(main).toHaveClass(/xl:border-l/)
+  await expect(button).toHaveAttribute("aria-expanded", "false")
 }
 
 export async function openSettings(page: Page) {
@@ -198,17 +182,48 @@ export async function createTestProject() {
   await fs.writeFile(path.join(root, "README.md"), "# e2e\n")
 
   execSync("git init", { cwd: root, stdio: "ignore" })
+  execSync("git config core.fsmonitor false", { cwd: root, stdio: "ignore" })
   execSync("git add -A", { cwd: root, stdio: "ignore" })
   execSync('git -c user.name="e2e" -c user.email="e2e@example.com" commit -m "init" --allow-empty', {
     cwd: root,
     stdio: "ignore",
   })
 
-  return root
+  return resolveDirectory(root)
 }
 
 export async function cleanupTestProject(directory: string) {
-  await fs.rm(directory, { recursive: true, force: true }).catch(() => undefined)
+  try {
+    execSync("git fsmonitor--daemon stop", { cwd: directory, stdio: "ignore" })
+  } catch {}
+  await fs.rm(directory, { recursive: true, force: true, maxRetries: 5, retryDelay: 100 }).catch(() => undefined)
+}
+
+export function slugFromUrl(url: string) {
+  return /\/([^/]+)\/session(?:[/?#]|$)/.exec(url)?.[1] ?? ""
+}
+
+export async function waitSlug(page: Page, skip: string[] = []) {
+  let prev = ""
+  let next = ""
+  await expect
+    .poll(
+      () => {
+        const slug = slugFromUrl(page.url())
+        if (!slug) return ""
+        if (skip.includes(slug)) return ""
+        if (slug !== prev) {
+          prev = slug
+          next = ""
+          return ""
+        }
+        next = slug
+        return slug
+      },
+      { timeout: 45_000 },
+    )
+    .not.toBe("")
+  return next
 }
 
 export function sessionIDFromUrl(url: string) {
@@ -217,7 +232,7 @@ export function sessionIDFromUrl(url: string) {
 }
 
 export async function hoverSessionItem(page: Page, sessionID: string) {
-  const sessionEl = page.locator(sessionItemSelector(sessionID)).first()
+  const sessionEl = page.locator(`[data-session-id="${sessionID}"]`).last()
   await expect(sessionEl).toBeVisible()
   await sessionEl.hover()
   return sessionEl
@@ -226,9 +241,9 @@ export async function hoverSessionItem(page: Page, sessionID: string) {
 export async function openSessionMoreMenu(page: Page, sessionID: string) {
   await expect(page).toHaveURL(new RegExp(`/session/${sessionID}(?:[/?#]|$)`))
 
-  const header = page.locator(sessionHeaderSelector).first()
-  await expect(header).toBeVisible()
-  await expect(header.getByRole("heading", { level: 1 }).first()).toBeVisible({ timeout: 30_000 })
+  const scroller = page.locator(".scroll-view__viewport").first()
+  await expect(scroller).toBeVisible()
+  await expect(scroller.getByRole("heading", { level: 1 }).first()).toBeVisible({ timeout: 30_000 })
 
   const menu = page
     .locator(dropdownMenuContentSelector)
@@ -244,7 +259,7 @@ export async function openSessionMoreMenu(page: Page, sessionID: string) {
 
   if (opened) return menu
 
-  const menuTrigger = header.getByRole("button", { name: /more options/i }).first()
+  const menuTrigger = scroller.getByRole("button", { name: /more options/i }).first()
   await expect(menuTrigger).toBeVisible()
   await menuTrigger.click()
 
@@ -318,6 +333,57 @@ export async function clickListItem(
   return item
 }
 
+async function status(sdk: ReturnType<typeof createSdk>, sessionID: string) {
+  const data = await sdk.session
+    .status()
+    .then((x) => x.data ?? {})
+    .catch(() => undefined)
+  return data?.[sessionID]
+}
+
+async function stable(sdk: ReturnType<typeof createSdk>, sessionID: string, timeout = 10_000) {
+  let prev = ""
+  await expect
+    .poll(
+      async () => {
+        const info = await sdk.session
+          .get({ sessionID })
+          .then((x) => x.data)
+          .catch(() => undefined)
+        if (!info) return true
+        const next = `${info.title}:${info.time.updated ?? info.time.created}`
+        if (next !== prev) {
+          prev = next
+          return false
+        }
+        return true
+      },
+      { timeout },
+    )
+    .toBe(true)
+}
+
+export async function waitSessionIdle(sdk: ReturnType<typeof createSdk>, sessionID: string, timeout = 30_000) {
+  await expect.poll(() => status(sdk, sessionID).then((x) => !x || x.type === "idle"), { timeout }).toBe(true)
+}
+
+export async function cleanupSession(input: {
+  sessionID: string
+  directory?: string
+  sdk?: ReturnType<typeof createSdk>
+}) {
+  const sdk = input.sdk ?? (input.directory ? createSdk(input.directory) : undefined)
+  if (!sdk) throw new Error("cleanupSession requires sdk or directory")
+  await waitSessionIdle(sdk, input.sessionID, 5_000).catch(() => undefined)
+  const current = await status(sdk, input.sessionID).catch(() => undefined)
+  if (current && current.type !== "idle") {
+    await sdk.session.abort({ sessionID: input.sessionID }).catch(() => undefined)
+    await waitSessionIdle(sdk, input.sessionID).catch(() => undefined)
+  }
+  await stable(sdk, input.sessionID).catch(() => undefined)
+  await sdk.session.delete({ sessionID: input.sessionID }).catch(() => undefined)
+}
+
 export async function withSession<T>(
   sdk: ReturnType<typeof createSdk>,
   title: string,
@@ -329,7 +395,7 @@ export async function withSession<T>(
   try {
     return await callback(session)
   } finally {
-    await sdk.session.delete({ sessionID: session.id }).catch(() => undefined)
+    await cleanupSession({ sdk, sessionID: session.id })
   }
 }
 
@@ -567,32 +633,42 @@ export async function openProjectMenu(page: Page, projectSlug: string) {
   const trigger = page.locator(projectMenuTriggerSelector(projectSlug)).first()
   await expect(trigger).toHaveCount(1)
 
+  const menu = page
+    .locator(dropdownMenuContentSelector)
+    .filter({ has: page.locator(projectCloseMenuSelector(projectSlug)) })
+    .first()
+  const close = menu.locator(projectCloseMenuSelector(projectSlug)).first()
+
+  const clicked = await trigger
+    .click({ timeout: 1500 })
+    .then(() => true)
+    .catch(() => false)
+
+  if (clicked) {
+    const opened = await menu
+      .waitFor({ state: "visible", timeout: 1500 })
+      .then(() => true)
+      .catch(() => false)
+    if (opened) {
+      await expect(close).toBeVisible()
+      return menu
+    }
+  }
+
   await trigger.focus()
   await page.keyboard.press("Enter")
 
-  const menu = page.locator(dropdownMenuContentSelector).first()
   const opened = await menu
     .waitFor({ state: "visible", timeout: 1500 })
     .then(() => true)
     .catch(() => false)
 
   if (opened) {
-    const viewport = page.viewportSize()
-    const x = viewport ? Math.max(viewport.width - 5, 0) : 1200
-    const y = viewport ? Math.max(viewport.height - 5, 0) : 800
-    await page.mouse.move(x, y)
+    await expect(close).toBeVisible()
     return menu
   }
 
-  await trigger.click({ force: true })
-
-  await expect(menu).toBeVisible()
-
-  const viewport = page.viewportSize()
-  const x = viewport ? Math.max(viewport.width - 5, 0) : 1200
-  const y = viewport ? Math.max(viewport.height - 5, 0) : 800
-  await page.mouse.move(x, y)
-  return menu
+  throw new Error(`Failed to open project menu: ${projectSlug}`)
 }
 
 export async function setWorkspacesEnabled(page: Page, projectSlug: string, enabled: boolean) {
@@ -605,11 +681,18 @@ export async function setWorkspacesEnabled(page: Page, projectSlug: string, enab
 
   if (current === enabled) return
 
-  await openProjectMenu(page, projectSlug)
+  const flip = async (timeout?: number) => {
+    const menu = await openProjectMenu(page, projectSlug)
+    const toggle = menu.locator(projectWorkspacesToggleSelector(projectSlug)).first()
+    await expect(toggle).toBeVisible()
+    return toggle.click({ force: true, timeout })
+  }
 
-  const toggle = page.locator(projectWorkspacesToggleSelector(projectSlug)).first()
-  await expect(toggle).toBeVisible()
-  await toggle.click({ force: true })
+  const flipped = await flip(1500)
+    .then(() => true)
+    .catch(() => false)
+
+  if (!flipped) await flip()
 
   const expected = enabled ? "New workspace" : "New session"
   await expect(page.getByRole("button", { name: expected }).first()).toBeVisible()

packages/app/e2e/app/home.spec.ts

@@ -1,17 +1,17 @@
 import { test, expect } from "../fixtures"
-import { serverName } from "../utils"
+import { serverNamePattern } from "../utils"
 
 test("home renders and shows core entrypoints", async ({ page }) => {
   await page.goto("/")
 
   await expect(page.getByRole("button", { name: "Open project" }).first()).toBeVisible()
-  await expect(page.getByRole("button", { name: serverName })).toBeVisible()
+  await expect(page.getByRole("button", { name: serverNamePattern })).toBeVisible()
 })
 
 test("server picker dialog opens from home", async ({ page }) => {
   await page.goto("/")
 
-  const trigger = page.getByRole("button", { name: serverName })
+  const trigger = page.getByRole("button", { name: serverNamePattern })
   await expect(trigger).toBeVisible()
   await trigger.click()
 

packages/app/e2e/app/server-default.spec.ts

@@ -1,6 +1,6 @@
 import { test, expect } from "../fixtures"
-import { serverName, serverUrl } from "../utils"
-import { clickListItem, closeDialog, clickMenuItem } from "../actions"
+import { serverNamePattern, serverUrls } from "../utils"
+import { closeDialog, clickMenuItem } from "../actions"
 
 const DEFAULT_SERVER_URL_KEY = "opencode.settings.dat:defaultServerUrl"
 
@@ -31,10 +31,9 @@ test("can set a default server on web", async ({ page, gotoSession }) => {
   const dialog = page.getByRole("dialog")
   await expect(dialog).toBeVisible()
 
-  const row = dialog.locator('[data-slot="list-item"]').filter({ hasText: serverName }).first()
-  await expect(row).toBeVisible()
+  await expect(dialog.getByText(serverNamePattern).first()).toBeVisible()
 
-  const menuTrigger = row.locator('[data-slot="dropdown-menu-trigger"]').first()
+  const menuTrigger = dialog.locator('[data-slot="dropdown-menu-trigger"]').first()
   await expect(menuTrigger).toBeVisible()
   await menuTrigger.click({ force: true })
 
@@ -42,14 +41,18 @@ test("can set a default server on web", async ({ page, gotoSession }) => {
   await expect(menu).toBeVisible()
   await clickMenuItem(menu, /set as default/i)
 
-  await expect.poll(() => page.evaluate((key) => localStorage.getItem(key), DEFAULT_SERVER_URL_KEY)).toBe(serverUrl)
-  await expect(row.getByText("Default", { exact: true })).toBeVisible()
+  await expect
+    .poll(async () =>
+      serverUrls.includes((await page.evaluate((key) => localStorage.getItem(key), DEFAULT_SERVER_URL_KEY)) ?? ""),
+    )
+    .toBe(true)
+  await expect(dialog.getByText("Default", { exact: true })).toBeVisible()
 
   await closeDialog(page, dialog)
 
   await ensurePopoverOpen()
 
-  const serverRow = popover.locator("button").filter({ hasText: serverName }).first()
+  const serverRow = popover.locator("button").filter({ hasText: serverNamePattern }).first()
   await expect(serverRow).toBeVisible()
   await expect(serverRow.getByText("Default", { exact: true })).toBeVisible()
 })

packages/app/e2e/app/titlebar-history.spec.ts

@@ -16,7 +16,6 @@ test("titlebar back/forward navigates between sessions", async ({ page, slug, sd
 
       const link = page.locator(`[data-session-id="${two.id}"] a`).first()
       await expect(link).toBeVisible()
-      await link.scrollIntoViewIfNeeded()
       await link.click()
 
       await expect(page).toHaveURL(new RegExp(`/${slug}/session/${two.id}(?:\\?|#|$)`))
@@ -56,7 +55,6 @@ test("titlebar forward is cleared after branching history from sidebar", async (
 
         const second = page.locator(`[data-session-id="${b.id}"] a`).first()
         await expect(second).toBeVisible()
-        await second.scrollIntoViewIfNeeded()
         await second.click()
 
         await expect(page).toHaveURL(new RegExp(`/${slug}/session/${b.id}(?:\\?|#|$)`))
@@ -76,7 +74,6 @@ test("titlebar forward is cleared after branching history from sidebar", async (
 
         const third = page.locator(`[data-session-id="${c.id}"] a`).first()
         await expect(third).toBeVisible()
-        await third.scrollIntoViewIfNeeded()
         await third.click()
 
         await expect(page).toHaveURL(new RegExp(`/${slug}/session/${c.id}(?:\\?|#|$)`))
@@ -102,7 +99,6 @@ test("keyboard shortcuts navigate titlebar history", async ({ page, slug, sdk, g
 
       const link = page.locator(`[data-session-id="${two.id}"] a`).first()
       await expect(link).toBeVisible()
-      await link.scrollIntoViewIfNeeded()
       await link.click()
 
       await expect(page).toHaveURL(new RegExp(`/${slug}/session/${two.id}(?:\\?|#|$)`))

packages/app/e2e/commands/panels.spec.ts

@@ -10,6 +10,8 @@ const expanded = async (el: { getAttribute: (name: string) => Promise<string | n
 test("review panel can be toggled via keybind", async ({ page, gotoSession }) => {
   await gotoSession()
 
+  const reviewPanel = page.locator("#review-panel")
+
   const treeToggle = page.getByRole("button", { name: "Toggle file tree" }).first()
   await expect(treeToggle).toBeVisible()
   if (await expanded(treeToggle)) await treeToggle.click()
@@ -19,13 +21,13 @@ test("review panel can be toggled via keybind", async ({ page, gotoSession }) =>
   await expect(reviewToggle).toBeVisible()
   if (await expanded(reviewToggle)) await reviewToggle.click()
   await expect(reviewToggle).toHaveAttribute("aria-expanded", "false")
-  await expect(page.locator("#review-panel")).toHaveCount(0)
+  await expect(reviewPanel).toHaveAttribute("aria-hidden", "true")
 
   await page.keyboard.press(`${modKey}+Shift+R`)
   await expect(reviewToggle).toHaveAttribute("aria-expanded", "true")
-  await expect(page.locator("#review-panel")).toBeVisible()
+  await expect(reviewPanel).toHaveAttribute("aria-hidden", "false")
 
   await page.keyboard.press(`${modKey}+Shift+R`)
   await expect(reviewToggle).toHaveAttribute("aria-expanded", "false")
-  await expect(page.locator("#review-panel")).toHaveCount(0)
+  await expect(reviewPanel).toHaveAttribute("aria-hidden", "true")
 })

packages/app/e2e/files/file-tree.spec.ts

@@ -43,6 +43,13 @@ test("file tree can expand folders and open a file", async ({ page, gotoSession
   await tab.click()
   await expect(tab).toHaveAttribute("aria-selected", "true")
 
+  await toggle.click()
+  await expect(toggle).toHaveAttribute("aria-expanded", "false")
+
+  await toggle.click()
+  await expect(toggle).toHaveAttribute("aria-expanded", "true")
+  await expect(allTab).toHaveAttribute("aria-selected", "true")
+
   const viewer = page.locator('[data-component="file"][data-mode="text"]').first()
   await expect(viewer).toBeVisible()
   await expect(viewer).toContainText("export default function FileTree")

packages/app/e2e/fixtures.ts

@@ -1,5 +1,5 @@
 import { test as base, expect, type Page } from "@playwright/test"
-import { cleanupTestProject, createTestProject, seedProjects } from "./actions"
+import { cleanupSession, cleanupTestProject, createTestProject, seedProjects, sessionIDFromUrl } from "./actions"
 import { promptSelector } from "./selectors"
 import { createSdk, dirSlug, getWorktree, sessionPath } from "./utils"
 
@@ -13,6 +13,8 @@ type TestFixtures = {
       directory: string
       slug: string
       gotoSession: (sessionID?: string) => Promise<void>
+      trackSession: (sessionID: string, directory?: string) => void
+      trackDirectory: (directory: string) => void
     }) => Promise<T>,
     options?: { extra?: string[] },
   ) => Promise<T>
@@ -51,20 +53,36 @@ export const test = base.extend<TestFixtures, WorkerFixtures>({
   },
   withProject: async ({ page }, use) => {
     await use(async (callback, options) => {
-      const directory = await createTestProject()
-      const slug = dirSlug(directory)
-      await seedStorage(page, { directory, extra: options?.extra })
+      const root = await createTestProject()
+      const slug = dirSlug(root)
+      const sessions = new Map<string, string>()
+      const dirs = new Set<string>()
+      await seedStorage(page, { directory: root, extra: options?.extra })
 
       const gotoSession = async (sessionID?: string) => {
-        await page.goto(sessionPath(directory, sessionID))
+        await page.goto(sessionPath(root, sessionID))
         await expect(page.locator(promptSelector)).toBeVisible()
+        const current = sessionIDFromUrl(page.url())
+        if (current) trackSession(current)
+      }
+
+      const trackSession = (sessionID: string, directory?: string) => {
+        sessions.set(sessionID, directory ?? root)
+      }
+
+      const trackDirectory = (directory: string) => {
+        if (directory !== root) dirs.add(directory)
       }
 
       try {
         await gotoSession()
-        return await callback({ directory, slug, gotoSession })
+        return await callback({ directory: root, slug, gotoSession, trackSession, trackDirectory })
       } finally {
-        await cleanupTestProject(directory)
+        await Promise.allSettled(
+          Array.from(sessions, ([sessionID, directory]) => cleanupSession({ sessionID, directory })),
+        )
+        await Promise.allSettled(Array.from(dirs, (directory) => cleanupTestProject(directory)))
+        await cleanupTestProject(root)
       }
     })
   },

packages/app/e2e/projects/project-edit.spec.ts

@@ -1,25 +1,15 @@
 import { test, expect } from "../fixtures"
-import { openSidebar } from "../actions"
+import { clickMenuItem, openProjectMenu, openSidebar } from "../actions"
 
 test("dialog edit project updates name and startup script", async ({ page, withProject }) => {
   await page.setViewportSize({ width: 1400, height: 800 })
 
-  await withProject(async () => {
+  await withProject(async ({ slug }) => {
     await openSidebar(page)
 
     const open = async () => {
-      const header = page.locator(".group\\/project").first()
-      await header.hover()
-      const trigger = header.getByRole("button", { name: "More options" }).first()
-      await expect(trigger).toBeVisible()
-      await trigger.click({ force: true })
-
-      const menu = page.locator('[data-component="dropdown-menu-content"]').first()
-      await expect(menu).toBeVisible()
-
-      const editItem = menu.getByRole("menuitem", { name: "Edit" }).first()
-      await expect(editItem).toBeVisible()
-      await editItem.click({ force: true })
+      const menu = await openProjectMenu(page, slug)
+      await clickMenuItem(menu, /^Edit$/i, { force: true })
 
       const dialog = page.getByRole("dialog")
       await expect(dialog).toBeVisible()

packages/app/e2e/projects/projects-close.spec.ts

@@ -1,36 +1,8 @@
 import { test, expect } from "../fixtures"
 import { createTestProject, cleanupTestProject, openSidebar, clickMenuItem, openProjectMenu } from "../actions"
-import { projectCloseHoverSelector, projectSwitchSelector } from "../selectors"
+import { projectSwitchSelector } from "../selectors"
 import { dirSlug } from "../utils"
 
-test("can close a project via hover card close button", async ({ page, withProject }) => {
-  await page.setViewportSize({ width: 1400, height: 800 })
-
-  const other = await createTestProject()
-  const otherSlug = dirSlug(other)
-
-  try {
-    await withProject(
-      async () => {
-        await openSidebar(page)
-
-        const otherButton = page.locator(projectSwitchSelector(otherSlug)).first()
-        await expect(otherButton).toBeVisible()
-        await otherButton.hover()
-
-        const close = page.locator(projectCloseHoverSelector(otherSlug)).first()
-        await expect(close).toBeVisible()
-        await close.click()
-
-        await expect(otherButton).toHaveCount(0)
-      },
-      { extra: [other] },
-    )
-  } finally {
-    await cleanupTestProject(other)
-  }
-})
-
 test("closing active project navigates to another open project", async ({ page, withProject }) => {
   await page.setViewportSize({ width: 1400, height: 800 })
 
@@ -53,16 +25,26 @@ test("closing active project navigates to another open project", async ({ page,
         await clickMenuItem(menu, /^Close$/i, { force: true })
 
         await expect
-          .poll(() => {
-            const pathname = new URL(page.url()).pathname
-            if (new RegExp(`^/${slug}/session(?:/[^/]+)?/?$`).test(pathname)) return "project"
-            if (pathname === "/") return "home"
-            return ""
-          })
+          .poll(
+            () => {
+              const pathname = new URL(page.url()).pathname
+              if (new RegExp(`^/${slug}/session(?:/[^/]+)?/?$`).test(pathname)) return "project"
+              if (pathname === "/") return "home"
+              return ""
+            },
+            { timeout: 15_000 },
+          )
           .toMatch(/^(project|home)$/)
 
         await expect(page).not.toHaveURL(new RegExp(`/${otherSlug}/session(?:[/?#]|$)`))
-        await expect(otherButton).toHaveCount(0)
+        await expect
+          .poll(
+            async () => {
+              return await page.locator(projectSwitchSelector(otherSlug)).count()
+            },
+            { timeout: 15_000 },
+          )
+          .toBe(0)
       },
       { extra: [other] },
     )

packages/app/e2e/projects/projects-switch.spec.ts

@@ -1,18 +1,39 @@
 import { base64Decode } from "@opencode-ai/util/encode"
+import type { Page } from "@playwright/test"
 import { test, expect } from "../fixtures"
-import {
-  defocus,
-  createTestProject,
-  cleanupTestProject,
-  openSidebar,
-  setWorkspacesEnabled,
-  sessionIDFromUrl,
-} from "../actions"
+import { defocus, createTestProject, cleanupTestProject, openSidebar, sessionIDFromUrl, waitSlug } from "../actions"
 import { projectSwitchSelector, promptSelector, workspaceItemSelector, workspaceNewSessionSelector } from "../selectors"
-import { createSdk, dirSlug, sessionPath } from "../utils"
+import { dirSlug, resolveDirectory } from "../utils"
 
-function slugFromUrl(url: string) {
-  return /\/([^/]+)\/session(?:\/|$)/.exec(url)?.[1] ?? ""
+async function workspaces(page: Page, directory: string, enabled: boolean) {
+  await page.evaluate(
+    ({ directory, enabled }: { directory: string; enabled: boolean }) => {
+      const key = "opencode.global.dat:layout"
+      const raw = localStorage.getItem(key)
+      const data = raw ? JSON.parse(raw) : {}
+      const sidebar = data.sidebar && typeof data.sidebar === "object" ? data.sidebar : {}
+      const current =
+        sidebar.workspaces && typeof sidebar.workspaces === "object" && !Array.isArray(sidebar.workspaces)
+          ? sidebar.workspaces
+          : {}
+      const next = { ...current }
+
+      if (enabled) next[directory] = true
+      if (!enabled) delete next[directory]
+
+      localStorage.setItem(
+        key,
+        JSON.stringify({
+          ...data,
+          sidebar: {
+            ...sidebar,
+            workspaces: next,
+          },
+        }),
+      )
+    },
+    { directory, enabled },
+  )
 }
 
 test("can switch between projects from sidebar", async ({ page, withProject }) => {
@@ -51,46 +72,39 @@ test("switching back to a project opens the latest workspace session", async ({
 
   const other = await createTestProject()
   const otherSlug = dirSlug(other)
-  let rootDir: string | undefined
-  let workspaceDir: string | undefined
-  let sessionID: string | undefined
-
   try {
     await withProject(
-      async ({ directory, slug }) => {
-        rootDir = directory
+      async ({ directory, slug, trackSession, trackDirectory }) => {
         await defocus(page)
+        await workspaces(page, directory, true)
+        await page.reload()
+        await expect(page.locator(promptSelector)).toBeVisible()
         await openSidebar(page)
-        await setWorkspacesEnabled(page, slug, true)
+        await expect(page.getByRole("button", { name: "New workspace" }).first()).toBeVisible()
 
         await page.getByRole("button", { name: "New workspace" }).first().click()
 
-        await expect
-          .poll(
-            () => {
-              const next = slugFromUrl(page.url())
-              if (!next) return ""
-              if (next === slug) return ""
-              return next
-            },
-            { timeout: 45_000 },
-          )
-          .not.toBe("")
-
-        const workspaceSlug = slugFromUrl(page.url())
-        workspaceDir = base64Decode(workspaceSlug)
-        if (!workspaceDir) throw new Error(`Failed to decode workspace slug: ${workspaceSlug}`)
+        const raw = await waitSlug(page, [slug])
+        const dir = base64Decode(raw)
+        if (!dir) throw new Error(`Failed to decode workspace slug: ${raw}`)
+        const space = await resolveDirectory(dir)
+        const next = dirSlug(space)
+        trackDirectory(space)
         await openSidebar(page)
 
-        const workspace = page.locator(workspaceItemSelector(workspaceSlug)).first()
-        await expect(workspace).toBeVisible()
-        await workspace.hover()
+        const item = page.locator(`${workspaceItemSelector(next)}, ${workspaceItemSelector(raw)}`).first()
+        await expect(item).toBeVisible()
+        await item.hover()
 
-        const newSession = page.locator(workspaceNewSessionSelector(workspaceSlug)).first()
-        await expect(newSession).toBeVisible()
-        await newSession.click({ force: true })
+        const btn = page.locator(`${workspaceNewSessionSelector(next)}, ${workspaceNewSessionSelector(raw)}`).first()
+        await expect(btn).toBeVisible()
+        await btn.click({ force: true })
 
-        await expect(page).toHaveURL(new RegExp(`/${workspaceSlug}/session(?:[/?#]|$)`))
+        // A new workspace can be discovered via a transient slug before the route and sidebar
+        // settle to the canonical workspace path on Windows, so interact with either and assert
+        // against the resolved workspace slug.
+        await waitSlug(page)
+        await expect(page).toHaveURL(new RegExp(`/${next}/session(?:[/?#]|$)`))
 
         // Create a session by sending a prompt
         const prompt = page.locator(promptSelector)
@@ -103,9 +117,9 @@ test("switching back to a project opens the latest workspace session", async ({
 
         const created = sessionIDFromUrl(page.url())
         if (!created) throw new Error(`Failed to get session ID from url: ${page.url()}`)
-        sessionID = created
+        trackSession(created, space)
 
-        await expect(page).toHaveURL(new RegExp(`/${workspaceSlug}/session/${created}(?:[/?#]|$)`))
+        await expect(page).toHaveURL(new RegExp(`/${next}/session/${created}(?:[/?#]|$)`))
 
         await openSidebar(page)
 
@@ -124,20 +138,6 @@ test("switching back to a project opens the latest workspace session", async ({
       { extra: [other] },
     )
   } finally {
-    if (sessionID) {
-      const id = sessionID
-      const dirs = [rootDir, workspaceDir].filter((x): x is string => !!x)
-      await Promise.all(
-        dirs.map((directory) =>
-          createSdk(directory)
-            .session.delete({ sessionID: id })
-            .catch(() => undefined),
-        ),
-      )
-    }
-    if (workspaceDir) {
-      await cleanupTestProject(workspaceDir)
-    }
     await cleanupTestProject(other)
   }
 })

packages/app/e2e/projects/workspace-new-session.spec.ts

@@ -1,14 +1,10 @@
 import { base64Decode } from "@opencode-ai/util/encode"
 import type { Page } from "@playwright/test"
 import { test, expect } from "../fixtures"
-import { cleanupTestProject, openSidebar, sessionIDFromUrl, setWorkspacesEnabled } from "../actions"
+import { openSidebar, sessionIDFromUrl, setWorkspacesEnabled, slugFromUrl, waitSlug } from "../actions"
 import { promptSelector, workspaceItemSelector, workspaceNewSessionSelector } from "../selectors"
 import { createSdk } from "../utils"
 
-function slugFromUrl(url: string) {
-  return /\/([^/]+)\/session(?:\/|$)/.exec(url)?.[1] ?? ""
-}
-
 async function waitWorkspaceReady(page: Page, slug: string) {
   await openSidebar(page)
   await expect
@@ -31,20 +27,7 @@ async function createWorkspace(page: Page, root: string, seen: string[]) {
   await openSidebar(page)
   await page.getByRole("button", { name: "New workspace" }).first().click()
 
-  await expect
-    .poll(
-      () => {
-        const slug = slugFromUrl(page.url())
-        if (!slug) return ""
-        if (slug === root) return ""
-        if (seen.includes(slug)) return ""
-        return slug
-      },
-      { timeout: 45_000 },
-    )
-    .not.toBe("")
-
-  const slug = slugFromUrl(page.url())
+  const slug = await waitSlug(page, [root, ...seen])
   const directory = base64Decode(slug)
   if (!directory) throw new Error(`Failed to decode workspace slug: ${slug}`)
   return { slug, directory }
@@ -60,12 +43,13 @@ async function openWorkspaceNewSession(page: Page, slug: string) {
   await expect(button).toBeVisible()
   await button.click({ force: true })
 
-  await expect.poll(() => slugFromUrl(page.url())).toBe(slug)
-  await expect(page).toHaveURL(new RegExp(`/${slug}/session(?:[/?#]|$)`))
+  const next = await waitSlug(page)
+  await expect(page).toHaveURL(new RegExp(`/${next}/session(?:[/?#]|$)`))
+  return next
 }
 
 async function createSessionFromWorkspace(page: Page, slug: string, text: string) {
-  await openWorkspaceNewSession(page, slug)
+  const next = await openWorkspaceNewSession(page, slug)
 
   const prompt = page.locator(promptSelector)
   await expect(prompt).toBeVisible()
@@ -76,13 +60,13 @@ async function createSessionFromWorkspace(page: Page, slug: string, text: string
   await expect.poll(async () => ((await prompt.textContent()) ?? "").trim()).toContain(text)
   await prompt.press("Enter")
 
-  await expect.poll(() => slugFromUrl(page.url())).toBe(slug)
+  await expect.poll(() => slugFromUrl(page.url())).toBe(next)
   await expect.poll(() => sessionIDFromUrl(page.url()) ?? "", { timeout: 30_000 }).not.toBe("")
 
   const sessionID = sessionIDFromUrl(page.url())
   if (!sessionID) throw new Error(`Failed to parse session id from url: ${page.url()}`)
-  await expect(page).toHaveURL(new RegExp(`/${slug}/session/${sessionID}(?:[/?#]|$)`))
-  return sessionID
+  await expect(page).toHaveURL(new RegExp(`/${next}/session/${sessionID}(?:[/?#]|$)`))
+  return { sessionID, slug: next }
 }
 
 async function sessionDirectory(directory: string, sessionID: string) {
@@ -97,48 +81,29 @@ async function sessionDirectory(directory: string, sessionID: string) {
 test("new sessions from sidebar workspace actions stay in selected workspace", async ({ page, withProject }) => {
   await page.setViewportSize({ width: 1400, height: 800 })
 
-  await withProject(async ({ directory, slug: root }) => {
-    const workspaces = [] as { slug: string; directory: string }[]
-    const sessions = [] as string[]
+  await withProject(async ({ directory, slug: root, trackSession, trackDirectory }) => {
+    await openSidebar(page)
+    await setWorkspacesEnabled(page, root, true)
 
-    try {
-      await openSidebar(page)
-      await setWorkspacesEnabled(page, root, true)
+    const first = await createWorkspace(page, root, [])
+    trackDirectory(first.directory)
+    await waitWorkspaceReady(page, first.slug)
 
-      const first = await createWorkspace(page, root, [])
-      workspaces.push(first)
-      await waitWorkspaceReady(page, first.slug)
+    const second = await createWorkspace(page, root, [first.slug])
+    trackDirectory(second.directory)
+    await waitWorkspaceReady(page, second.slug)
 
-      const second = await createWorkspace(page, root, [first.slug])
-      workspaces.push(second)
-      await waitWorkspaceReady(page, second.slug)
+    const firstSession = await createSessionFromWorkspace(page, first.slug, `workspace one ${Date.now()}`)
+    trackSession(firstSession.sessionID, first.directory)
 
-      const firstSession = await createSessionFromWorkspace(page, first.slug, `workspace one ${Date.now()}`)
-      sessions.push(firstSession)
+    const secondSession = await createSessionFromWorkspace(page, second.slug, `workspace two ${Date.now()}`)
+    trackSession(secondSession.sessionID, second.directory)
 
-      const secondSession = await createSessionFromWorkspace(page, second.slug, `workspace two ${Date.now()}`)
-      sessions.push(secondSession)
+    const thirdSession = await createSessionFromWorkspace(page, first.slug, `workspace one again ${Date.now()}`)
+    trackSession(thirdSession.sessionID, first.directory)
 
-      const thirdSession = await createSessionFromWorkspace(page, first.slug, `workspace one again ${Date.now()}`)
-      sessions.push(thirdSession)
-
-      await expect.poll(() => sessionDirectory(first.directory, firstSession)).toBe(first.directory)
-      await expect.poll(() => sessionDirectory(second.directory, secondSession)).toBe(second.directory)
-      await expect.poll(() => sessionDirectory(first.directory, thirdSession)).toBe(first.directory)
-    } finally {
-      const dirs = [directory, ...workspaces.map((workspace) => workspace.directory)]
-      await Promise.all(
-        sessions.map((sessionID) =>
-          Promise.all(
-            dirs.map((dir) =>
-              createSdk(dir)
-                .session.delete({ sessionID })
-                .catch(() => undefined),
-            ),
-          ),
-        ),
-      )
-      await Promise.all(workspaces.map((workspace) => cleanupTestProject(workspace.directory)))
-    }
+    await expect.poll(() => sessionDirectory(first.directory, firstSession.sessionID)).toBe(first.directory)
+    await expect.poll(() => sessionDirectory(second.directory, secondSession.sessionID)).toBe(second.directory)
+    await expect.poll(() => sessionDirectory(first.directory, thirdSession.sessionID)).toBe(first.directory)
   })
 })

packages/app/e2e/projects/workspaces.spec.ts

@@ -14,14 +14,12 @@ import {
   openSidebar,
   openWorkspaceMenu,
   setWorkspacesEnabled,
+  slugFromUrl,
+  waitSlug,
 } from "../actions"
 import { dropdownMenuContentSelector, inlineInputSelector, workspaceItemSelector } from "../selectors"
 import { createSdk, dirSlug } from "../utils"
 
-function slugFromUrl(url: string) {
-  return /\/([^/]+)\/session(?:\/|$)/.exec(url)?.[1] ?? ""
-}
-
 async function setupWorkspaceTest(page: Page, project: { slug: string }) {
   const rootSlug = project.slug
   await openSidebar(page)
@@ -29,17 +27,7 @@ async function setupWorkspaceTest(page: Page, project: { slug: string }) {
   await setWorkspacesEnabled(page, rootSlug, true)
 
   await page.getByRole("button", { name: "New workspace" }).first().click()
-  await expect
-    .poll(
-      () => {
-        const slug = slugFromUrl(page.url())
-        return slug.length > 0 && slug !== rootSlug
-      },
-      { timeout: 45_000 },
-    )
-    .toBe(true)
-
-  const slug = slugFromUrl(page.url())
+  const slug = await waitSlug(page, [rootSlug])
   const dir = base64Decode(slug)
 
   await openSidebar(page)
@@ -91,18 +79,7 @@ test("can create a workspace", async ({ page, withProject }) => {
     await expect(page.getByRole("button", { name: "New workspace" }).first()).toBeVisible()
 
     await page.getByRole("button", { name: "New workspace" }).first().click()
-
-    await expect
-      .poll(
-        () => {
-          const currentSlug = slugFromUrl(page.url())
-          return currentSlug.length > 0 && currentSlug !== slug
-        },
-        { timeout: 45_000 },
-      )
-      .toBe(true)
-
-    const workspaceSlug = slugFromUrl(page.url())
+    const workspaceSlug = await waitSlug(page, [slug])
     const workspaceDir = base64Decode(workspaceSlug)
 
     await openSidebar(page)
@@ -279,7 +256,7 @@ test("can delete a workspace", async ({ page, withProject }) => {
     await clickMenuItem(menu, /^Delete$/i, { force: true })
     await confirmDialog(page, /^Delete workspace$/i)
 
-    await expect(page).toHaveURL(new RegExp(`/${rootSlug}/session`))
+    await expect.poll(() => base64Decode(slugFromUrl(page.url()))).toBe(project.directory)
 
     await expect
       .poll(
@@ -336,9 +313,6 @@ test("can reorder workspaces by drag and drop", async ({ page, withProject }) =>
       const src = page.locator(workspaceItemSelector(from)).first()
       const dst = page.locator(workspaceItemSelector(to)).first()
 
-      await src.scrollIntoViewIfNeeded()
-      await dst.scrollIntoViewIfNeeded()
-
       const a = await src.boundingBox()
       const b = await dst.boundingBox()
       if (!a || !b) throw new Error("Failed to resolve workspace drag bounds")
@@ -357,17 +331,7 @@ test("can reorder workspaces by drag and drop", async ({ page, withProject }) =>
       for (const _ of [0, 1]) {
         const prev = slugFromUrl(page.url())
         await page.getByRole("button", { name: "New workspace" }).first().click()
-        await expect
-          .poll(
-            () => {
-              const slug = slugFromUrl(page.url())
-              return slug.length > 0 && slug !== rootSlug && slug !== prev
-            },
-            { timeout: 45_000 },
-          )
-          .toBe(true)
-
-        const slug = slugFromUrl(page.url())
+        const slug = await waitSlug(page, [rootSlug, prev])
         const dir = base64Decode(slug)
         workspaces.push({ slug, directory: dir })
 

packages/app/e2e/prompt/prompt-async.spec.ts

@@ -1,6 +1,8 @@
 import { test, expect } from "../fixtures"
 import { promptSelector } from "../selectors"
-import { sessionIDFromUrl } from "../actions"
+import { cleanupSession, sessionIDFromUrl, withSession } from "../actions"
+
+const text = (value: string | null) => (value ?? "").replace(/\u200B/g, "").trim()
 
 // Regression test for Issue #12453: the synchronous POST /message endpoint holds
 // the connection open while the agent works, causing "Failed to fetch" over
@@ -38,6 +40,37 @@ test("prompt succeeds when sync message endpoint is unreachable", async ({ page,
       )
       .toContain(token)
   } finally {
-    await sdk.session.delete({ sessionID }).catch(() => undefined)
+    await cleanupSession({ sdk, sessionID })
   }
 })
+
+test("failed prompt send restores the composer input", async ({ page, sdk, gotoSession }) => {
+  await withSession(sdk, `e2e prompt failure ${Date.now()}`, async (session) => {
+    const prompt = page.locator(promptSelector)
+    const value = `restore ${Date.now()}`
+
+    await page.route(`**/session/${session.id}/prompt_async`, (route) =>
+      route.fulfill({
+        status: 500,
+        contentType: "application/json",
+        body: JSON.stringify({ message: "e2e prompt failure" }),
+      }),
+    )
+
+    await gotoSession(session.id)
+    await prompt.click()
+    await page.keyboard.type(value)
+    await page.keyboard.press("Enter")
+
+    await expect.poll(async () => text(await prompt.textContent())).toBe(value)
+    await expect
+      .poll(
+        async () => {
+          const messages = await sdk.session.messages({ sessionID: session.id, limit: 50 }).then((r) => r.data ?? [])
+          return messages.length
+        },
+        { timeout: 15_000 },
+      )
+      .toBe(0)
+  })
+})

packages/app/e2e/prompt/prompt-history.spec.ts

@@ -0,0 +1,181 @@
+import type { ToolPart } from "@opencode-ai/sdk/v2/client"
+import type { Page } from "@playwright/test"
+import { test, expect } from "../fixtures"
+import { withSession } from "../actions"
+import { promptSelector } from "../selectors"
+
+const text = (value: string | null) => (value ?? "").replace(/\u200B/g, "").trim()
+
+const isBash = (part: unknown): part is ToolPart => {
+  if (!part || typeof part !== "object") return false
+  if (!("type" in part) || part.type !== "tool") return false
+  if (!("tool" in part) || part.tool !== "bash") return false
+  return "state" in part
+}
+
+async function edge(page: Page, pos: "start" | "end") {
+  await page.locator(promptSelector).evaluate((el: HTMLDivElement, pos: "start" | "end") => {
+    const selection = window.getSelection()
+    if (!selection) return
+
+    const walk = document.createTreeWalker(el, NodeFilter.SHOW_TEXT)
+    const nodes: Text[] = []
+    for (let node = walk.nextNode(); node; node = walk.nextNode()) {
+      nodes.push(node as Text)
+    }
+
+    if (nodes.length === 0) {
+      const node = document.createTextNode("")
+      el.appendChild(node)
+      nodes.push(node)
+    }
+
+    const node = pos === "start" ? nodes[0]! : nodes[nodes.length - 1]!
+    const range = document.createRange()
+    range.setStart(node, pos === "start" ? 0 : (node.textContent ?? "").length)
+    range.collapse(true)
+    selection.removeAllRanges()
+    selection.addRange(range)
+  }, pos)
+}
+
+async function wait(page: Page, value: string) {
+  await expect.poll(async () => text(await page.locator(promptSelector).textContent())).toBe(value)
+}
+
+async function reply(sdk: Parameters<typeof withSession>[0], sessionID: string, token: string) {
+  await expect
+    .poll(
+      async () => {
+        const messages = await sdk.session.messages({ sessionID, limit: 50 }).then((r) => r.data ?? [])
+        return messages
+          .filter((item) => item.info.role === "assistant")
+          .flatMap((item) => item.parts)
+          .filter((item) => item.type === "text")
+          .map((item) => item.text)
+          .join("\n")
+      },
+      { timeout: 90_000 },
+    )
+    .toContain(token)
+}
+
+async function shell(sdk: Parameters<typeof withSession>[0], sessionID: string, cmd: string, token: string) {
+  await expect
+    .poll(
+      async () => {
+        const messages = await sdk.session.messages({ sessionID, limit: 50 }).then((r) => r.data ?? [])
+        const part = messages
+          .filter((item) => item.info.role === "assistant")
+          .flatMap((item) => item.parts)
+          .filter(isBash)
+          .find((item) => item.state.input?.command === cmd && item.state.status === "completed")
+
+        if (!part || part.state.status !== "completed") return
+        return typeof part.state.metadata?.output === "string" ? part.state.metadata.output : part.state.output
+      },
+      { timeout: 90_000 },
+    )
+    .toContain(token)
+}
+
+test("prompt history restores unsent draft with arrow navigation", async ({ page, sdk, gotoSession }) => {
+  test.setTimeout(120_000)
+
+  await withSession(sdk, `e2e prompt history ${Date.now()}`, async (session) => {
+    await gotoSession(session.id)
+
+    const prompt = page.locator(promptSelector)
+    const firstToken = `E2E_HISTORY_ONE_${Date.now()}`
+    const secondToken = `E2E_HISTORY_TWO_${Date.now()}`
+    const first = `Reply with exactly: ${firstToken}`
+    const second = `Reply with exactly: ${secondToken}`
+    const draft = `draft ${Date.now()}`
+
+    await prompt.click()
+    await page.keyboard.type(first)
+    await page.keyboard.press("Enter")
+    await wait(page, "")
+    await reply(sdk, session.id, firstToken)
+
+    await prompt.click()
+    await page.keyboard.type(second)
+    await page.keyboard.press("Enter")
+    await wait(page, "")
+    await reply(sdk, session.id, secondToken)
+
+    await prompt.click()
+    await page.keyboard.type(draft)
+    await wait(page, draft)
+
+    await edge(page, "start")
+    await page.keyboard.press("ArrowUp")
+    await wait(page, second)
+
+    await page.keyboard.press("ArrowUp")
+    await wait(page, first)
+
+    await page.keyboard.press("ArrowDown")
+    await wait(page, second)
+
+    await page.keyboard.press("ArrowDown")
+    await wait(page, draft)
+  })
+})
+
+test("shell history stays separate from normal prompt history", async ({ page, sdk, gotoSession }) => {
+  test.setTimeout(120_000)
+
+  await withSession(sdk, `e2e shell history ${Date.now()}`, async (session) => {
+    await gotoSession(session.id)
+
+    const prompt = page.locator(promptSelector)
+    const firstToken = `E2E_SHELL_ONE_${Date.now()}`
+    const secondToken = `E2E_SHELL_TWO_${Date.now()}`
+    const normalToken = `E2E_NORMAL_${Date.now()}`
+    const first = `echo ${firstToken}`
+    const second = `echo ${secondToken}`
+    const normal = `Reply with exactly: ${normalToken}`
+
+    await prompt.click()
+    await page.keyboard.type("!")
+    await page.keyboard.type(first)
+    await page.keyboard.press("Enter")
+    await wait(page, "")
+    await shell(sdk, session.id, first, firstToken)
+
+    await prompt.click()
+    await page.keyboard.type("!")
+    await page.keyboard.type(second)
+    await page.keyboard.press("Enter")
+    await wait(page, "")
+    await shell(sdk, session.id, second, secondToken)
+
+    await prompt.click()
+    await page.keyboard.type("!")
+    await page.keyboard.press("ArrowUp")
+    await wait(page, second)
+
+    await page.keyboard.press("ArrowUp")
+    await wait(page, first)
+
+    await page.keyboard.press("ArrowDown")
+    await wait(page, second)
+
+    await page.keyboard.press("ArrowDown")
+    await wait(page, "")
+
+    await page.keyboard.press("Escape")
+    await wait(page, "")
+
+    await prompt.click()
+    await page.keyboard.type(normal)
+    await page.keyboard.press("Enter")
+    await wait(page, "")
+    await reply(sdk, session.id, normalToken)
+
+    await prompt.click()
+    await page.keyboard.press("ArrowUp")
+    await wait(page, normal)
+  })
+})

packages/app/e2e/prompt/prompt-shell.spec.ts

@@ -0,0 +1,62 @@
+import type { ToolPart } from "@opencode-ai/sdk/v2/client"
+import { test, expect } from "../fixtures"
+import { sessionIDFromUrl } from "../actions"
+import { promptSelector } from "../selectors"
+import { createSdk } from "../utils"
+
+const isBash = (part: unknown): part is ToolPart => {
+  if (!part || typeof part !== "object") return false
+  if (!("type" in part) || part.type !== "tool") return false
+  if (!("tool" in part) || part.tool !== "bash") return false
+  return "state" in part
+}
+
+test("shell mode runs a command in the project directory", async ({ page, withProject }) => {
+  test.setTimeout(120_000)
+
+  await withProject(async ({ directory, gotoSession, trackSession }) => {
+    const sdk = createSdk(directory)
+    const prompt = page.locator(promptSelector)
+    const cmd = process.platform === "win32" ? "dir" : "ls"
+
+    await gotoSession()
+    await prompt.click()
+    await page.keyboard.type("!")
+    await expect(prompt).toHaveAttribute("aria-label", /enter shell command/i)
+
+    await page.keyboard.type(cmd)
+    await page.keyboard.press("Enter")
+
+    await expect(page).toHaveURL(/\/session\/[^/?#]+/, { timeout: 30_000 })
+
+    const id = sessionIDFromUrl(page.url())
+    if (!id) throw new Error(`Failed to parse session id from url: ${page.url()}`)
+    trackSession(id, directory)
+
+    await expect
+      .poll(
+        async () => {
+          const list = await sdk.session.messages({ sessionID: id, limit: 50 }).then((x) => x.data ?? [])
+          const msg = list.findLast(
+            (item) => item.info.role === "assistant" && "path" in item.info && item.info.path.cwd === directory,
+          )
+          if (!msg) return
+
+          const part = msg.parts
+            .filter(isBash)
+            .find((item) => item.state.input?.command === cmd && item.state.status === "completed")
+
+          if (!part || part.state.status !== "completed") return
+          const output =
+            typeof part.state.metadata?.output === "string" ? part.state.metadata.output : part.state.output
+          if (!output.includes("README.md")) return
+
+          return { cwd: directory, output }
+        },
+        { timeout: 90_000 },
+      )
+      .toEqual(expect.objectContaining({ cwd: directory, output: expect.stringContaining("README.md") }))
+
+    await expect(prompt).toHaveText("")
+  })
+})

packages/app/e2e/prompt/prompt-slash-share.spec.ts

@@ -0,0 +1,64 @@
+import { test, expect } from "../fixtures"
+import { promptSelector } from "../selectors"
+import { withSession } from "../actions"
+
+const shareDisabled = process.env.OPENCODE_DISABLE_SHARE === "true" || process.env.OPENCODE_DISABLE_SHARE === "1"
+
+async function seed(sdk: Parameters<typeof withSession>[0], sessionID: string) {
+  await sdk.session.promptAsync({
+    sessionID,
+    noReply: true,
+    parts: [{ type: "text", text: "e2e share seed" }],
+  })
+
+  await expect
+    .poll(
+      async () => {
+        const messages = await sdk.session.messages({ sessionID, limit: 1 }).then((r) => r.data ?? [])
+        return messages.length
+      },
+      { timeout: 30_000 },
+    )
+    .toBeGreaterThan(0)
+}
+
+test("/share and /unshare update session share state", async ({ page, sdk, gotoSession }) => {
+  test.skip(shareDisabled, "Share is disabled in this environment (OPENCODE_DISABLE_SHARE).")
+
+  await withSession(sdk, `e2e slash share ${Date.now()}`, async (session) => {
+    const prompt = page.locator(promptSelector)
+
+    await seed(sdk, session.id)
+    await gotoSession(session.id)
+
+    await prompt.click()
+    await page.keyboard.type("/share")
+    await expect(page.locator('[data-slash-id="session.share"]').first()).toBeVisible()
+    await page.keyboard.press("Enter")
+
+    await expect
+      .poll(
+        async () => {
+          const data = await sdk.session.get({ sessionID: session.id }).then((r) => r.data)
+          return data?.share?.url || undefined
+        },
+        { timeout: 30_000 },
+      )
+      .not.toBeUndefined()
+
+    await prompt.click()
+    await page.keyboard.type("/unshare")
+    await expect(page.locator('[data-slash-id="session.unshare"]').first()).toBeVisible()
+    await page.keyboard.press("Enter")
+
+    await expect
+      .poll(
+        async () => {
+          const data = await sdk.session.get({ sessionID: session.id }).then((r) => r.data)
+          return data?.share?.url || undefined
+        },
+        { timeout: 30_000 },
+      )
+      .toBeUndefined()
+  })
+})

packages/app/e2e/prompt/prompt.spec.ts

@@ -1,6 +1,6 @@
 import { test, expect } from "../fixtures"
 import { promptSelector } from "../selectors"
-import { sessionIDFromUrl, withSession } from "../actions"
+import { cleanupSession, sessionIDFromUrl, withSession } from "../actions"
 
 test("can send a prompt and receive a reply", async ({ page, sdk, gotoSession }) => {
   test.setTimeout(120_000)
@@ -46,7 +46,7 @@ test("can send a prompt and receive a reply", async ({ page, sdk, gotoSession })
       .toContain(token)
   } finally {
     page.off("pageerror", onPageError)
-    await sdk.session.delete({ sessionID }).catch(() => undefined)
+    await cleanupSession({ sdk, sessionID })
   }
 
   if (pageErrors.length > 0) {

packages/app/e2e/selectors.ts

@@ -30,8 +30,6 @@ export const sidebarNavSelector = '[data-component="sidebar-nav-desktop"]'
 export const projectSwitchSelector = (slug: string) =>
   `${sidebarNavSelector} [data-action="project-switch"][data-project="${slug}"]`
 
-export const projectCloseHoverSelector = (slug: string) => `[data-action="project-close-hover"][data-project="${slug}"]`
-
 export const projectMenuTriggerSelector = (slug: string) =>
   `${sidebarNavSelector} [data-action="project-menu"][data-project="${slug}"]`
 
@@ -53,8 +51,6 @@ export const dropdownMenuContentSelector = '[data-component="dropdown-menu-conte
 
 export const inlineInputSelector = '[data-component="inline-input"]'
 
-export const sessionHeaderSelector = "[data-session-title]"
-
 export const sessionItemSelector = (sessionID: string) => `${sidebarNavSelector} [data-session-id="${sessionID}"]`
 
 export const workspaceItemSelector = (slug: string) =>

packages/app/e2e/session/session-composer-dock.spec.ts

@@ -1,5 +1,5 @@
 import { test, expect } from "../fixtures"
-import { clearSessionDockSeed, seedSessionQuestion, seedSessionTodos } from "../actions"
+import { cleanupSession, clearSessionDockSeed, seedSessionQuestion, seedSessionTodos } from "../actions"
 import {
   permissionDockSelector,
   promptSelector,
@@ -26,7 +26,7 @@ async function withDockSession<T>(
   try {
     return await fn(session)
   } finally {
-    await sdk.session.delete({ sessionID: session.id }).catch(() => undefined)
+    await cleanupSession({ sdk, sessionID: session.id })
   }
 }
 
@@ -311,7 +311,7 @@ test("child session question request blocks parent dock and unblocks after submi
         await expect(page.locator(promptSelector)).toBeVisible()
       })
     } finally {
-      await sdk.session.delete({ sessionID: child.id }).catch(() => undefined)
+      await cleanupSession({ sdk, sessionID: child.id })
     }
   })
 })
@@ -358,7 +358,7 @@ test("child session permission request blocks parent dock and supports allow onc
         },
       )
     } finally {
-      await sdk.session.delete({ sessionID: child.id }).catch(() => undefined)
+      await cleanupSession({ sdk, sessionID: child.id })
     }
   })
 })

packages/app/e2e/session/session-undo-redo.spec.ts

@@ -45,7 +45,7 @@ async function seedConversation(input: {
     .toBe(true)
 
   if (!userMessageID) throw new Error("Expected a user message id")
-  await expect(input.page.locator(`[data-message-id="${userMessageID}"]`).first()).toBeVisible({ timeout: 30_000 })
+  await expect(input.page.locator(`[data-message-id="${userMessageID}"]`)).toHaveCount(1, { timeout: 30_000 })
   return { prompt, userMessageID }
 }
 
@@ -123,7 +123,7 @@ test("slash redo clears revert and restores latest state", async ({ page, withPr
         .toBeUndefined()
 
       await expect(seeded.prompt).not.toContainText(token)
-      await expect(page.locator(`[data-message-id="${seeded.userMessageID}"]`).first()).toBeVisible()
+      await expect(page.locator(`[data-message-id="${seeded.userMessageID}"]`)).toHaveCount(1)
     })
   })
 })
@@ -158,8 +158,8 @@ test("slash undo/redo traverses multi-step revert stack", async ({ page, withPro
       const firstMessage = page.locator(`[data-message-id="${first.userMessageID}"]`)
       const secondMessage = page.locator(`[data-message-id="${second.userMessageID}"]`)
 
-      await expect(firstMessage.first()).toBeVisible()
-      await expect(secondMessage.first()).toBeVisible()
+      await expect(firstMessage).toHaveCount(1)
+      await expect(secondMessage).toHaveCount(1)
 
       await second.prompt.click()
       await page.keyboard.press(`${modKey}+A`)
@@ -176,7 +176,7 @@ test("slash undo/redo traverses multi-step revert stack", async ({ page, withPro
         })
         .toBe(second.userMessageID)
 
-      await expect(firstMessage.first()).toBeVisible()
+      await expect(firstMessage).toHaveCount(1)
       await expect(secondMessage).toHaveCount(0)
 
       await second.prompt.click()
@@ -210,7 +210,7 @@ test("slash undo/redo traverses multi-step revert stack", async ({ page, withPro
         })
         .toBe(second.userMessageID)
 
-      await expect(firstMessage.first()).toBeVisible()
+      await expect(firstMessage).toHaveCount(1)
       await expect(secondMessage).toHaveCount(0)
 
       await second.prompt.click()
@@ -226,8 +226,8 @@ test("slash undo/redo traverses multi-step revert stack", async ({ page, withPro
         })
         .toBeUndefined()
 
-      await expect(firstMessage.first()).toBeVisible()
-      await expect(secondMessage.first()).toBeVisible()
+      await expect(firstMessage).toHaveCount(1)
+      await expect(secondMessage).toHaveCount(1)
     })
   })
 })

packages/app/e2e/session/session.spec.ts

@@ -7,7 +7,7 @@ import {
   openSharePopover,
   withSession,
 } from "../actions"
-import { sessionHeaderSelector, sessionItemSelector, inlineInputSelector } from "../selectors"
+import { sessionItemSelector, inlineInputSelector } from "../selectors"
 
 const shareDisabled = process.env.OPENCODE_DISABLE_SHARE === "true" || process.env.OPENCODE_DISABLE_SHARE === "1"
 
@@ -44,7 +44,7 @@ test("session can be renamed via header menu", async ({ page, sdk, gotoSession }
     const menu = await openSessionMoreMenu(page, session.id)
     await clickMenuItem(menu, /rename/i)
 
-    const input = page.locator(sessionHeaderSelector).locator(inlineInputSelector).first()
+    const input = page.locator(".scroll-view__viewport").locator(inlineInputSelector).first()
     await expect(input).toBeVisible()
     await expect(input).toBeFocused()
     await input.fill(renamedTitle)

packages/app/e2e/settings/settings-keybinds.spec.ts

@@ -32,22 +32,19 @@ test("changing sidebar toggle keybind works", async ({ page, gotoSession }) => {
 
   await closeDialog(page, dialog)
 
-  const main = page.locator("main")
-  const initialClasses = (await main.getAttribute("class")) ?? ""
-  const initiallyClosed = initialClasses.includes("xl:border-l")
+  const button = page.getByRole("button", { name: /toggle sidebar/i }).first()
+  const initiallyClosed = (await button.getAttribute("aria-expanded")) !== "true"
 
   await page.keyboard.press(`${modKey}+Shift+H`)
-  await page.waitForTimeout(100)
+  await expect(button).toHaveAttribute("aria-expanded", initiallyClosed ? "true" : "false")
 
-  const afterToggleClasses = (await main.getAttribute("class")) ?? ""
-  const afterToggleClosed = afterToggleClasses.includes("xl:border-l")
+  const afterToggleClosed = (await button.getAttribute("aria-expanded")) !== "true"
   expect(afterToggleClosed).toBe(!initiallyClosed)
 
   await page.keyboard.press(`${modKey}+Shift+H`)
-  await page.waitForTimeout(100)
+  await expect(button).toHaveAttribute("aria-expanded", initiallyClosed ? "false" : "true")
 
-  const finalClasses = (await main.getAttribute("class")) ?? ""
-  const finalClosed = finalClasses.includes("xl:border-l")
+  const finalClosed = (await button.getAttribute("aria-expanded")) !== "true"
   expect(finalClosed).toBe(initiallyClosed)
 })
 

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

@@ -83,16 +83,23 @@ test("changing theme persists in localStorage", async ({ page, gotoSession }) =>
   const select = dialog.locator(settingsThemeSelector)
   await expect(select).toBeVisible()
 
+  const currentThemeId = await page.evaluate(() => {
+    return document.documentElement.getAttribute("data-theme")
+  })
+  const currentTheme = (await select.locator('[data-slot="select-select-trigger-value"]').textContent())?.trim() ?? ""
+
   await select.locator('[data-slot="select-select-trigger"]').click()
 
   const items = page.locator('[data-slot="select-select-item"]')
   const count = await items.count()
   expect(count).toBeGreaterThan(1)
 
-  const firstTheme = await items.nth(1).locator('[data-slot="select-select-item-label"]').textContent()
-  expect(firstTheme).toBeTruthy()
+  const nextTheme = (await items.locator('[data-slot="select-select-item-label"]').allTextContents())
+    .map((x) => x.trim())
+    .find((x) => x && x !== currentTheme)
+  expect(nextTheme).toBeTruthy()
 
-  await items.nth(1).click()
+  await items.filter({ hasText: nextTheme! }).first().click()
 
   await page.keyboard.press("Escape")
 
@@ -101,7 +108,7 @@ test("changing theme persists in localStorage", async ({ page, gotoSession }) =>
   })
 
   expect(storedThemeId).not.toBeNull()
-  expect(storedThemeId).not.toBe("oc-1")
+  expect(storedThemeId).not.toBe(currentThemeId)
 
   const dataTheme = await page.evaluate(() => {
     return document.documentElement.getAttribute("data-theme")
@@ -109,6 +116,42 @@ test("changing theme persists in localStorage", async ({ page, gotoSession }) =>
   expect(dataTheme).toBe(storedThemeId)
 })
 
+test("legacy oc-1 theme migrates to oc-2", async ({ page, gotoSession }) => {
+  await page.addInitScript(() => {
+    localStorage.setItem("opencode-theme-id", "oc-1")
+    localStorage.setItem("opencode-theme-css-light", "--background-base:#fff;")
+    localStorage.setItem("opencode-theme-css-dark", "--background-base:#000;")
+  })
+
+  await gotoSession()
+
+  await expect(page.locator("html")).toHaveAttribute("data-theme", "oc-2")
+
+  await expect
+    .poll(async () => {
+      return await page.evaluate(() => {
+        return localStorage.getItem("opencode-theme-id")
+      })
+    })
+    .toBe("oc-2")
+
+  await expect
+    .poll(async () => {
+      return await page.evaluate(() => {
+        return localStorage.getItem("opencode-theme-css-light")
+      })
+    })
+    .toBeNull()
+
+  await expect
+    .poll(async () => {
+      return await page.evaluate(() => {
+        return localStorage.getItem("opencode-theme-css-dark")
+      })
+    })
+    .toBeNull()
+})
+
 test("changing font persists in localStorage and updates CSS variable", async ({ page, gotoSession }) => {
   await gotoSession()
 

packages/app/e2e/sidebar/sidebar-popover-actions.spec.ts

@@ -1,6 +1,6 @@
 import { test, expect } from "../fixtures"
-import { closeSidebar, hoverSessionItem } from "../actions"
-import { projectSwitchSelector, sessionItemSelector } from "../selectors"
+import { cleanupSession, closeSidebar, hoverSessionItem } from "../actions"
+import { projectSwitchSelector } from "../selectors"
 
 test("collapsed sidebar popover stays open when archiving a session", async ({ page, slug, sdk, gotoSession }) => {
   const stamp = Date.now()
@@ -15,12 +15,15 @@ test("collapsed sidebar popover stays open when archiving a session", async ({ p
     await gotoSession(one.id)
     await closeSidebar(page)
 
+    const oneItem = page.locator(`[data-session-id="${one.id}"]`).last()
+    const twoItem = page.locator(`[data-session-id="${two.id}"]`).last()
+
     const project = page.locator(projectSwitchSelector(slug)).first()
     await expect(project).toBeVisible()
     await project.hover()
 
-    await expect(page.locator(sessionItemSelector(one.id)).first()).toBeVisible()
-    await expect(page.locator(sessionItemSelector(two.id)).first()).toBeVisible()
+    await expect(oneItem).toBeVisible()
+    await expect(twoItem).toBeVisible()
 
     const item = await hoverSessionItem(page, one.id)
     await item
@@ -28,9 +31,9 @@ test("collapsed sidebar popover stays open when archiving a session", async ({ p
       .first()
       .click()
 
-    await expect(page.locator(sessionItemSelector(two.id)).first()).toBeVisible()
+    await expect(twoItem).toBeVisible()
   } finally {
-    await sdk.session.delete({ sessionID: one.id }).catch(() => undefined)
-    await sdk.session.delete({ sessionID: two.id }).catch(() => undefined)
+    await cleanupSession({ sdk, sessionID: one.id })
+    await cleanupSession({ sdk, sessionID: two.id })
   }
 })

packages/app/e2e/sidebar/sidebar-session-links.spec.ts

@@ -1,5 +1,5 @@
 import { test, expect } from "../fixtures"
-import { openSidebar, withSession } from "../actions"
+import { cleanupSession, openSidebar, withSession } from "../actions"
 import { promptSelector } from "../selectors"
 
 test("sidebar session links navigate to the selected session", async ({ page, slug, sdk, gotoSession }) => {
@@ -18,14 +18,13 @@ test("sidebar session links navigate to the selected session", async ({ page, sl
 
     const target = page.locator(`[data-session-id="${two.id}"] a`).first()
     await expect(target).toBeVisible()
-    await target.scrollIntoViewIfNeeded()
     await target.click()
 
     await expect(page).toHaveURL(new RegExp(`/${slug}/session/${two.id}(?:\\?|#|$)`))
     await expect(page.locator(promptSelector)).toBeVisible()
     await expect(page.locator(`[data-session-id="${two.id}"] a`).first()).toHaveClass(/\bactive\b/)
   } finally {
-    await sdk.session.delete({ sessionID: one.id }).catch(() => undefined)
-    await sdk.session.delete({ sessionID: two.id }).catch(() => undefined)
+    await cleanupSession({ sdk, sessionID: one.id })
+    await cleanupSession({ sdk, sessionID: two.id })
   }
 })

packages/app/e2e/sidebar/sidebar.spec.ts

@@ -5,12 +5,14 @@ test("sidebar can be collapsed and expanded", async ({ page, gotoSession }) => {
   await gotoSession()
 
   await openSidebar(page)
+  const button = page.getByRole("button", { name: /toggle sidebar/i }).first()
+  await expect(button).toHaveAttribute("aria-expanded", "true")
 
   await toggleSidebar(page)
-  await expect(page.locator("main")).toHaveClass(/xl:border-l/)
+  await expect(button).toHaveAttribute("aria-expanded", "false")
 
   await toggleSidebar(page)
-  await expect(page.locator("main")).not.toHaveClass(/xl:border-l/)
+  await expect(button).toHaveAttribute("aria-expanded", "true")
 })
 
 test("sidebar collapsed state persists across navigation and reload", async ({ page, sdk, gotoSession }) => {
@@ -19,14 +21,15 @@ test("sidebar collapsed state persists across navigation and reload", async ({ p
       await gotoSession(session1.id)
 
       await openSidebar(page)
+      const button = page.getByRole("button", { name: /toggle sidebar/i }).first()
       await toggleSidebar(page)
-      await expect(page.locator("main")).toHaveClass(/xl:border-l/)
+      await expect(button).toHaveAttribute("aria-expanded", "false")
 
       await gotoSession(session2.id)
-      await expect(page.locator("main")).toHaveClass(/xl:border-l/)
+      await expect(button).toHaveAttribute("aria-expanded", "false")
 
       await page.reload()
-      await expect(page.locator("main")).toHaveClass(/xl:border-l/)
+      await expect(button).toHaveAttribute("aria-expanded", "false")
 
       const opened = await page.evaluate(
         () => JSON.parse(localStorage.getItem("opencode.global.dat:layout") ?? "{}").sidebar?.opened,

packages/app/e2e/terminal/terminal-tabs.spec.ts

@@ -0,0 +1,139 @@
+import type { Page } from "@playwright/test"
+import { test, expect } from "../fixtures"
+import { terminalSelector } from "../selectors"
+import { terminalToggleKey, workspacePersistKey } from "../utils"
+
+type State = {
+  active?: string
+  all: Array<{
+    id: string
+    title: string
+    titleNumber: number
+    buffer?: string
+  }>
+}
+
+async function open(page: Page) {
+  const terminal = page.locator(terminalSelector)
+  const visible = await terminal.isVisible().catch(() => false)
+  if (!visible) await page.keyboard.press(terminalToggleKey)
+  await expect(terminal).toBeVisible()
+  await expect(terminal.locator("textarea")).toHaveCount(1)
+}
+
+async function run(page: Page, cmd: string) {
+  const terminal = page.locator(terminalSelector)
+  await expect(terminal).toBeVisible()
+  await terminal.click()
+  await page.keyboard.type(cmd)
+  await page.keyboard.press("Enter")
+}
+
+async function store(page: Page, key: string) {
+  return page.evaluate((key) => {
+    const raw = localStorage.getItem(key)
+    if (raw) return JSON.parse(raw) as State
+
+    for (let i = 0; i < localStorage.length; i++) {
+      const next = localStorage.key(i)
+      if (!next?.endsWith(":workspace:terminal")) continue
+      const value = localStorage.getItem(next)
+      if (!value) continue
+      return JSON.parse(value) as State
+    }
+  }, key)
+}
+
+test("inactive terminal tab buffers persist across tab switches", async ({ page, withProject }) => {
+  await withProject(async ({ directory, gotoSession }) => {
+    const key = workspacePersistKey(directory, "terminal")
+    const one = `E2E_TERM_ONE_${Date.now()}`
+    const two = `E2E_TERM_TWO_${Date.now()}`
+    const tabs = page.locator('#terminal-panel [data-slot="tabs-trigger"]')
+    const first = tabs.filter({ hasText: /Terminal 1/ }).first()
+    const second = tabs.filter({ hasText: /Terminal 2/ }).first()
+
+    await gotoSession()
+    await open(page)
+
+    await run(page, `echo ${one}`)
+
+    await page.getByRole("button", { name: /new terminal/i }).click()
+    await expect(tabs).toHaveCount(2)
+
+    await run(page, `echo ${two}`)
+
+    await first.click()
+    await expect(first).toHaveAttribute("aria-selected", "true")
+    await expect
+      .poll(
+        async () => {
+          const state = await store(page, key)
+          const first = state?.all.find((item) => item.titleNumber === 1)?.buffer ?? ""
+          const second = state?.all.find((item) => item.titleNumber === 2)?.buffer ?? ""
+          return {
+            first: first.includes(one),
+            second: second.includes(two),
+          }
+        },
+        { timeout: 30_000 },
+      )
+      .toEqual({ first: false, second: true })
+
+    await second.click()
+    await expect(second).toHaveAttribute("aria-selected", "true")
+    await expect
+      .poll(
+        async () => {
+          const state = await store(page, key)
+          const first = state?.all.find((item) => item.titleNumber === 1)?.buffer ?? ""
+          const second = state?.all.find((item) => item.titleNumber === 2)?.buffer ?? ""
+          return {
+            first: first.includes(one),
+            second: second.includes(two),
+          }
+        },
+        { timeout: 30_000 },
+      )
+      .toEqual({ first: true, second: false })
+  })
+})
+
+test("closing the active terminal tab falls back to the previous tab", async ({ page, withProject }) => {
+  await withProject(async ({ directory, gotoSession }) => {
+    const key = workspacePersistKey(directory, "terminal")
+    const tabs = page.locator('#terminal-panel [data-slot="tabs-trigger"]')
+
+    await gotoSession()
+    await open(page)
+
+    await page.getByRole("button", { name: /new terminal/i }).click()
+    await expect(tabs).toHaveCount(2)
+
+    const second = tabs.filter({ hasText: /Terminal 2/ }).first()
+    await second.click()
+    await expect(second).toHaveAttribute("aria-selected", "true")
+
+    await second.hover()
+    await page
+      .getByRole("button", { name: /close terminal/i })
+      .nth(1)
+      .click({ force: true })
+
+    const first = tabs.filter({ hasText: /Terminal 1/ }).first()
+    await expect(tabs).toHaveCount(1)
+    await expect(first).toHaveAttribute("aria-selected", "true")
+    await expect
+      .poll(
+        async () => {
+          const state = await store(page, key)
+          return {
+            count: state?.all.length ?? 0,
+            first: state?.all.some((item) => item.titleNumber === 1) ?? false,
+          }
+        },
+        { timeout: 15_000 },
+      )
+      .toEqual({ count: 1, first: true })
+  })
+})

packages/app/e2e/utils.ts

@@ -1,5 +1,5 @@
 import { createOpencodeClient } from "@opencode-ai/sdk/v2/client"
-import { base64Encode } from "@opencode-ai/util/encode"
+import { base64Encode, checksum } from "@opencode-ai/util/encode"
 
 export const serverHost = process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"
 export const serverPort = process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"
@@ -7,6 +7,22 @@ export const serverPort = process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"
 export const serverUrl = `http://${serverHost}:${serverPort}`
 export const serverName = `${serverHost}:${serverPort}`
 
+const localHosts = ["127.0.0.1", "localhost"]
+
+const serverLabels = (() => {
+  const url = new URL(serverUrl)
+  if (!localHosts.includes(url.hostname)) return [serverName]
+  return localHosts.map((host) => `${host}:${url.port}`)
+})()
+
+export const serverNames = [...new Set(serverLabels)]
+
+export const serverUrls = serverNames.map((name) => `http://${name}`)
+
+const escape = (value: string) => value.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")
+
+export const serverNamePattern = new RegExp(`(?:${serverNames.map(escape).join("|")})`)
+
 export const modKey = process.platform === "darwin" ? "Meta" : "Control"
 export const terminalToggleKey = "Control+Backquote"
 
@@ -14,6 +30,12 @@ export function createSdk(directory?: string) {
   return createOpencodeClient({ baseUrl: serverUrl, directory, throwOnError: true })
 }
 
+export async function resolveDirectory(directory: string) {
+  return createSdk(directory)
+    .path.get()
+    .then((x) => x.data?.directory ?? directory)
+}
+
 export async function getWorktree() {
   const sdk = createSdk()
   const result = await sdk.path.get()
@@ -33,3 +55,9 @@ export function dirPath(directory: string) {
 export function sessionPath(directory: string, sessionID?: string) {
   return `${dirPath(directory)}/session${sessionID ? `/${sessionID}` : ""}`
 }
+
+export function workspacePersistKey(directory: string, key: string) {
+  const head = (directory.slice(0, 12) || "workspace").replace(/[^a-zA-Z0-9._-]/g, "-")
+  const sum = checksum(directory) ?? "0"
+  return `opencode.workspace.${head}.${sum}.dat:workspace:${key}`
+}

packages/app/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@opencode-ai/app",
-  "version": "1.2.20",
+  "version": "1.2.24",
   "description": "",
   "type": "module",
   "exports": {

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

@@ -1,6 +1,13 @@
 ;(function () {
-  var themeId = localStorage.getItem("opencode-theme-id")
-  if (!themeId) return
+  var key = "opencode-theme-id"
+  var themeId = localStorage.getItem(key) || "oc-2"
+
+  if (themeId === "oc-1") {
+    themeId = "oc-2"
+    localStorage.setItem(key, themeId)
+    localStorage.removeItem("opencode-theme-css-light")
+    localStorage.removeItem("opencode-theme-css-dark")
+  }
 
   var scheme = localStorage.getItem("opencode-color-scheme") || "system"
   var isDark = scheme === "dark" || (scheme === "system" && matchMedia("(prefers-color-scheme: dark)").matches)
@@ -9,9 +16,9 @@
   document.documentElement.dataset.theme = themeId
   document.documentElement.dataset.colorScheme = mode
 
-  if (themeId === "oc-1") return
+  if (themeId === "oc-2") return
 
-  var css = localStorage.getItem("opencode-theme-css-" + themeId + "-" + mode)
+  var css = localStorage.getItem("opencode-theme-css-" + mode)
   if (css) {
     var style = document.createElement("style")
     style.id = "oc-theme-preload"

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

@@ -0,0 +1,432 @@
+import { useIsRouting, useLocation } from "@solidjs/router"
+import { batch, createEffect, onCleanup, onMount } from "solid-js"
+import { createStore } from "solid-js/store"
+import { Tooltip } from "@opencode-ai/ui/tooltip"
+
+type Mem = Performance & {
+  memory?: {
+    usedJSHeapSize: number
+    jsHeapSizeLimit: number
+  }
+}
+
+type Evt = PerformanceEntry & {
+  interactionId?: number
+  processingStart?: number
+}
+
+type Shift = PerformanceEntry & {
+  hadRecentInput: boolean
+  value: number
+}
+
+type Obs = PerformanceObserverInit & {
+  durationThreshold?: number
+}
+
+const span = 5000
+
+const ms = (n?: number, d = 0) => {
+  if (n === undefined || Number.isNaN(n)) return "n/a"
+  return `${n.toFixed(d)}ms`
+}
+
+const time = (n?: number) => {
+  if (n === undefined || Number.isNaN(n)) return "n/a"
+  return `${Math.round(n)}`
+}
+
+const mb = (n?: number) => {
+  if (n === undefined || Number.isNaN(n)) return "n/a"
+  const v = n / 1024 / 1024
+  return `${v >= 1024 ? v.toFixed(0) : v.toFixed(1)}MB`
+}
+
+const bad = (n: number | undefined, limit: number, low = false) => {
+  if (n === undefined || Number.isNaN(n)) return false
+  return low ? n < limit : n > limit
+}
+
+const session = (path: string) => path.includes("/session")
+
+function Cell(props: { bad?: boolean; dim?: boolean; label: string; tip: string; value: string }) {
+  return (
+    <Tooltip value={props.tip} placement="left">
+      <div class="flex w-full flex-col items-center px-0.5 py-1 text-center">
+        <div class="text-[7px] font-black uppercase tracking-[0.04em] opacity-70 leading-none">{props.label}</div>
+        <div
+          classList={{
+            "text-[9px] font-semibold leading-none tabular-nums": true,
+            "text-text-on-critical-base": !!props.bad,
+            "opacity-70": !!props.dim,
+          }}
+        >
+          {props.value}
+        </div>
+      </div>
+    </Tooltip>
+  )
+}
+
+export function DebugBar() {
+  const location = useLocation()
+  const routing = useIsRouting()
+  const [state, setState] = createStore({
+    cls: undefined as number | undefined,
+    delay: undefined as number | undefined,
+    fps: undefined as number | undefined,
+    gap: undefined as number | undefined,
+    heap: {
+      limit: undefined as number | undefined,
+      used: undefined as number | undefined,
+    },
+    inp: undefined as number | undefined,
+    jank: undefined as number | undefined,
+    long: {
+      block: undefined as number | undefined,
+      count: undefined as number | undefined,
+      max: undefined as number | undefined,
+    },
+    nav: {
+      dur: undefined as number | undefined,
+      pending: false,
+    },
+  })
+
+  const heap = () => (state.heap.limit ? (state.heap.used ?? 0) / state.heap.limit : undefined)
+  const heapv = () => {
+    const value = heap()
+    if (value === undefined) return "n/a"
+    return `${Math.round(value * 100)}%`
+  }
+  const longv = () => (state.long.count === undefined ? "n/a" : `${time(state.long.block)}/${state.long.count}`)
+  const navv = () => (state.nav.pending ? "..." : time(state.nav.dur))
+
+  let prev = ""
+  let start = 0
+  let init = false
+  let one = 0
+  let two = 0
+
+  createEffect(() => {
+    const busy = routing()
+    const next = `${location.pathname}${location.search}`
+
+    if (!init) {
+      init = true
+      prev = next
+      return
+    }
+
+    if (busy) {
+      if (one !== 0) cancelAnimationFrame(one)
+      if (two !== 0) cancelAnimationFrame(two)
+      one = 0
+      two = 0
+      if (start !== 0) return
+      start = performance.now()
+      if (session(prev)) setState("nav", { dur: undefined, pending: true })
+      return
+    }
+
+    if (start === 0) {
+      prev = next
+      return
+    }
+
+    const at = start
+    const from = prev
+    start = 0
+    prev = next
+
+    if (!(session(from) || session(next))) return
+
+    if (one !== 0) cancelAnimationFrame(one)
+    if (two !== 0) cancelAnimationFrame(two)
+    one = requestAnimationFrame(() => {
+      one = 0
+      two = requestAnimationFrame(() => {
+        two = 0
+        setState("nav", { dur: performance.now() - at, pending: false })
+      })
+    })
+  })
+
+  onMount(() => {
+    const obs: PerformanceObserver[] = []
+    const fps: Array<{ at: number; dur: number }> = []
+    const long: Array<{ at: number; dur: number }> = []
+    const seen = new Map<number | string, { at: number; delay: number; dur: number }>()
+    let hasLong = false
+    let poll: number | undefined
+    let raf = 0
+    let last = 0
+    let snap = 0
+
+    const trim = (list: Array<{ at: number; dur: number }>, span: number, at: number) => {
+      while (list[0] && at - list[0].at > span) list.shift()
+    }
+
+    const syncFrame = (at: number) => {
+      trim(fps, span, at)
+      const total = fps.reduce((sum, entry) => sum + entry.dur, 0)
+      const gap = fps.reduce((max, entry) => Math.max(max, entry.dur), 0)
+      const jank = fps.filter((entry) => entry.dur > 32).length
+      batch(() => {
+        setState("fps", total > 0 ? (fps.length * 1000) / total : undefined)
+        setState("gap", gap > 0 ? gap : undefined)
+        setState("jank", jank)
+      })
+    }
+
+    const syncLong = (at = performance.now()) => {
+      if (!hasLong) return
+      trim(long, span, at)
+      const block = long.reduce((sum, entry) => sum + Math.max(0, entry.dur - 50), 0)
+      const max = long.reduce((hi, entry) => Math.max(hi, entry.dur), 0)
+      setState("long", { block, count: long.length, max })
+    }
+
+    const syncInp = (at = performance.now()) => {
+      for (const [key, entry] of seen) {
+        if (at - entry.at > span) seen.delete(key)
+      }
+      let delay = 0
+      let inp = 0
+      for (const entry of seen.values()) {
+        delay = Math.max(delay, entry.delay)
+        inp = Math.max(inp, entry.dur)
+      }
+      batch(() => {
+        setState("delay", delay > 0 ? delay : undefined)
+        setState("inp", inp > 0 ? inp : undefined)
+      })
+    }
+
+    const syncHeap = () => {
+      const mem = (performance as Mem).memory
+      if (!mem) return
+      setState("heap", { limit: mem.jsHeapSizeLimit, used: mem.usedJSHeapSize })
+    }
+
+    const reset = () => {
+      fps.length = 0
+      long.length = 0
+      seen.clear()
+      last = 0
+      snap = 0
+      batch(() => {
+        setState("fps", undefined)
+        setState("gap", undefined)
+        setState("jank", undefined)
+        setState("delay", undefined)
+        setState("inp", undefined)
+        if (hasLong) setState("long", { block: 0, count: 0, max: 0 })
+      })
+    }
+
+    const watch = (type: string, init: Obs, fn: (entries: PerformanceEntry[]) => void) => {
+      if (typeof PerformanceObserver === "undefined") return false
+      if (!(PerformanceObserver.supportedEntryTypes ?? []).includes(type)) return false
+      const ob = new PerformanceObserver((list) => fn(list.getEntries()))
+      try {
+        ob.observe(init)
+        obs.push(ob)
+        return true
+      } catch {
+        ob.disconnect()
+        return false
+      }
+    }
+
+    if (
+      watch("layout-shift", { buffered: true, type: "layout-shift" }, (entries) => {
+        const add = entries.reduce((sum, entry) => {
+          const item = entry as Shift
+          if (item.hadRecentInput) return sum
+          return sum + item.value
+        }, 0)
+        if (add === 0) return
+        setState("cls", (value) => (value ?? 0) + add)
+      })
+    ) {
+      setState("cls", 0)
+    }
+
+    if (
+      watch("longtask", { buffered: true, type: "longtask" }, (entries) => {
+        const at = performance.now()
+        long.push(...entries.map((entry) => ({ at: entry.startTime, dur: entry.duration })))
+        syncLong(at)
+      })
+    ) {
+      hasLong = true
+      setState("long", { block: 0, count: 0, max: 0 })
+    }
+
+    watch("event", { buffered: true, durationThreshold: 16, type: "event" }, (entries) => {
+      for (const raw of entries) {
+        const entry = raw as Evt
+        if (entry.duration < 16) continue
+        const key =
+          entry.interactionId && entry.interactionId > 0
+            ? entry.interactionId
+            : `${entry.name}:${Math.round(entry.startTime)}`
+        const prev = seen.get(key)
+        const delay = Math.max(0, (entry.processingStart ?? entry.startTime) - entry.startTime)
+        seen.set(key, {
+          at: entry.startTime,
+          delay: Math.max(prev?.delay ?? 0, delay),
+          dur: Math.max(prev?.dur ?? 0, entry.duration),
+        })
+        if (seen.size <= 200) continue
+        const first = seen.keys().next().value
+        if (first !== undefined) seen.delete(first)
+      }
+      syncInp()
+    })
+
+    const loop = (at: number) => {
+      if (document.visibilityState !== "visible") {
+        raf = 0
+        return
+      }
+
+      if (last === 0) {
+        last = at
+        raf = requestAnimationFrame(loop)
+        return
+      }
+
+      fps.push({ at, dur: at - last })
+      last = at
+
+      if (at - snap >= 250) {
+        snap = at
+        syncFrame(at)
+      }
+
+      raf = requestAnimationFrame(loop)
+    }
+
+    const stop = () => {
+      if (raf !== 0) cancelAnimationFrame(raf)
+      raf = 0
+      if (poll === undefined) return
+      clearInterval(poll)
+      poll = undefined
+    }
+
+    const start = () => {
+      if (document.visibilityState !== "visible") return
+      if (poll === undefined) {
+        poll = window.setInterval(() => {
+          syncLong()
+          syncInp()
+          syncHeap()
+        }, 1000)
+      }
+      if (raf !== 0) return
+      raf = requestAnimationFrame(loop)
+    }
+
+    const vis = () => {
+      if (document.visibilityState !== "visible") {
+        stop()
+        return
+      }
+      reset()
+      start()
+    }
+
+    syncHeap()
+    start()
+    document.addEventListener("visibilitychange", vis)
+
+    onCleanup(() => {
+      if (one !== 0) cancelAnimationFrame(one)
+      if (two !== 0) cancelAnimationFrame(two)
+      stop()
+      document.removeEventListener("visibilitychange", vis)
+      for (const ob of obs) ob.disconnect()
+    })
+  })
+
+  return (
+    <aside
+      aria-label="Development performance diagnostics"
+      class="pointer-events-auto h-full min-h-0 w-[36px] shrink-0 overflow-y-auto text-text-on-interactive-base no-scrollbar sm:w-[38px]"
+      style={{ "background-color": "color-mix(in srgb, var(--icon-interactive-base) 42%, black)" }}
+    >
+      <div class="flex min-h-full flex-col gap-0.5 py-2 font-mono">
+        <Cell
+          label="NAV"
+          tip="Last completed route transition touching a session page, measured from router start until the first paint after it settles."
+          value={navv()}
+          bad={bad(state.nav.dur, 400)}
+          dim={state.nav.dur === undefined && !state.nav.pending}
+        />
+        <Cell
+          label="FPS"
+          tip="Rolling frames per second over the last 5 seconds."
+          value={state.fps === undefined ? "n/a" : `${Math.round(state.fps)}`}
+          bad={bad(state.fps, 50, true)}
+          dim={state.fps === undefined}
+        />
+        <Cell
+          label="FRM"
+          tip="Worst frame time over the last 5 seconds."
+          value={time(state.gap)}
+          bad={bad(state.gap, 50)}
+          dim={state.gap === undefined}
+        />
+        <Cell
+          label="JNK"
+          tip="Frames over 32ms in the last 5 seconds."
+          value={state.jank === undefined ? "n/a" : `${state.jank}`}
+          bad={bad(state.jank, 8)}
+          dim={state.jank === undefined}
+        />
+        <Cell
+          label="LNG"
+          tip={`Blocked time and long-task count in the last 5 seconds. Max task: ${ms(state.long.max)}.`}
+          value={longv()}
+          bad={bad(state.long.block, 200)}
+          dim={state.long.count === undefined}
+        />
+        <Cell
+          label="DLY"
+          tip="Worst observed input delay in the last 5 seconds."
+          value={time(state.delay)}
+          bad={bad(state.delay, 100)}
+          dim={state.delay === undefined}
+        />
+        <Cell
+          label="INP"
+          tip="Approximate interaction duration over the last 5 seconds. This is INP-like, not the official Web Vitals INP."
+          value={time(state.inp)}
+          bad={bad(state.inp, 200)}
+          dim={state.inp === undefined}
+        />
+        <Cell
+          label="CLS"
+          tip="Cumulative layout shift for the current app lifetime."
+          value={state.cls === undefined ? "n/a" : state.cls.toFixed(2)}
+          bad={bad(state.cls, 0.1)}
+          dim={state.cls === undefined}
+        />
+        <Cell
+          label="MEM"
+          tip={
+            state.heap.used === undefined
+              ? "Used JS heap vs heap limit. Chromium only."
+              : `Used JS heap vs heap limit. ${mb(state.heap.used)} of ${mb(state.heap.limit)}.`
+          }
+          value={heapv()}
+          bad={bad(heap(), 0.8)}
+          dim={state.heap.used === undefined}
+        />
+      </div>
+    </aside>
+  )
+}

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

@@ -244,7 +244,6 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
     draggingType: "image" | "@mention" | null
     mode: "normal" | "shell"
     applyingHistory: boolean
-    pendingAutoAccept: boolean
   }>({
     popover: null,
     historyIndex: -1,
@@ -253,20 +252,9 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
     draggingType: null,
     mode: "normal",
     applyingHistory: false,
-    pendingAutoAccept: false,
   })
 
-  const buttonsSpring = useSpring(
-    () => (store.mode === "normal" ? 1 : 0),
-    { visualDuration: 0.2, bounce: 0 },
-  )
-
-  const springFade = (t: number): Record<string, string> => ({
-    opacity: `${t}`,
-    transform: `scale(${0.95 + t * 0.05})`,
-    filter: `blur(${(1 - t) * 2}px)`,
-    "pointer-events": t > 0.5 ? "auto" : "none",
-  })
+  const buttonsSpring = useSpring(() => (store.mode === "normal" ? 1 : 0), { visualDuration: 0.2, bounce: 0 })
 
   const commentCount = createMemo(() => {
     if (store.mode === "shell") return 0
@@ -316,12 +304,6 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
     }),
   )
 
-  createEffect(
-    on(sessionKey, () => {
-      setStore("pendingAutoAccept", false)
-    }),
-  )
-
   const historyComments = () => {
     const byID = new Map(comments.all().map((item) => [`${item.file}\n${item.id}`, item] as const))
     return prompt.context.items().flatMap((item) => {
@@ -971,7 +953,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
   const variants = createMemo(() => ["default", ...local.model.variant.list()])
   const accepting = createMemo(() => {
     const id = params.id
-    if (!id) return store.pendingAutoAccept
+    if (!id) return permission.isAutoAcceptingDirectory(sdk.directory)
     return permission.isAutoAccepting(id, sdk.directory)
   })
 
@@ -1264,7 +1246,9 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
             <div
               aria-hidden={store.mode !== "normal"}
               class="flex items-center gap-1"
-              style={{ "pointer-events": buttonsSpring() > 0.5 ? "auto" : "none" }}
+              style={{
+                "pointer-events": buttonsSpring() > 0.5 ? "auto" : "none",
+              }}
             >
               <TooltipKeybind
                 placement="top"
@@ -1276,7 +1260,11 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                   type="button"
                   variant="ghost"
                   class="size-8 p-0"
-                  style={springFade(buttonsSpring())}
+                  style={{
+                    opacity: buttonsSpring(),
+                    transform: `scale(${0.95 + buttonsSpring() * 0.05})`,
+                    filter: `blur(${(1 - buttonsSpring()) * 2}px)`,
+                  }}
                   onClick={pick}
                   disabled={store.mode !== "normal"}
                   tabIndex={store.mode === "normal" ? undefined : -1}
@@ -1314,7 +1302,11 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                   icon={working() ? "stop" : "arrow-up"}
                   variant="primary"
                   class="size-8"
-                  style={springFade(buttonsSpring())}
+                  style={{
+                    opacity: buttonsSpring(),
+                    transform: `scale(${0.95 + buttonsSpring() * 0.05})`,
+                    filter: `blur(${(1 - buttonsSpring()) * 2}px)`,
+                  }}
                   aria-label={working() ? language.t("prompt.action.stop") : language.t("prompt.action.send")}
                 />
               </Tooltip>
@@ -1336,7 +1328,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                   variant="ghost"
                   onClick={() => {
                     if (!params.id) {
-                      setStore("pendingAutoAccept", (value) => !value)
+                      permission.toggleAutoAcceptDirectory(sdk.directory)
                       return
                     }
                     permission.toggleAutoAccept(params.id, sdk.directory)
@@ -1370,7 +1362,13 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
             <div class="flex items-center gap-1.5 min-w-0 flex-1 relative">
               <div
                 class="h-7 flex items-center gap-1.5 max-w-[160px] min-w-0 absolute inset-y-0 left-0"
-                style={{ padding: "0 4px 0 8px", ...springFade(1 - buttonsSpring()) }}
+                style={{
+                  padding: "0 4px 0 8px",
+                  opacity: 1 - buttonsSpring(),
+                  transform: `scale(${0.95 + (1 - buttonsSpring()) * 0.05})`,
+                  filter: `blur(${buttonsSpring() * 2}px)`,
+                  "pointer-events": buttonsSpring() < 0.5 ? "auto" : "none",
+                }}
               >
                 <span class="truncate text-13-medium text-text-strong">{language.t("prompt.mode.shell")}</span>
                 <div class="size-4 shrink-0" />
@@ -1389,7 +1387,13 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                     onSelect={local.agent.set}
                     class="capitalize max-w-[160px]"
                     valueClass="truncate text-13-regular"
-                    triggerStyle={{ height: "28px", ...springFade(buttonsSpring()) }}
+                    triggerStyle={{
+                      height: "28px",
+                      opacity: buttonsSpring(),
+                      transform: `scale(${0.95 + buttonsSpring() * 0.05})`,
+                      filter: `blur(${(1 - buttonsSpring()) * 2}px)`,
+                      "pointer-events": buttonsSpring() > 0.5 ? "auto" : "none",
+                    }}
                     variant="ghost"
                   />
                 </TooltipKeybind>
@@ -1407,7 +1411,13 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                         variant="ghost"
                         size="normal"
                         class="min-w-0 max-w-[320px] text-13-regular group"
-                        style={{ height: "28px", ...springFade(buttonsSpring()) }}
+                        style={{
+                          height: "28px",
+                          opacity: buttonsSpring(),
+                          transform: `scale(${0.95 + buttonsSpring() * 0.05})`,
+                          filter: `blur(${(1 - buttonsSpring()) * 2}px)`,
+                          "pointer-events": buttonsSpring() > 0.5 ? "auto" : "none",
+                        }}
                         onClick={() => dialog.show(() => <DialogSelectModelUnpaid />)}
                       >
                         <Show when={local.model.current()?.provider?.id}>
@@ -1436,7 +1446,13 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                       triggerProps={{
                         variant: "ghost",
                         size: "normal",
-                        style: { height: "28px", ...springFade(buttonsSpring()) },
+                        style: {
+                          height: "28px",
+                          opacity: buttonsSpring(),
+                          transform: `scale(${0.95 + buttonsSpring() * 0.05})`,
+                          filter: `blur(${(1 - buttonsSpring()) * 2}px)`,
+                          "pointer-events": buttonsSpring() > 0.5 ? "auto" : "none",
+                        },
                         class: "min-w-0 max-w-[320px] text-13-regular group",
                       }}
                     >
@@ -1468,7 +1484,13 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                     onSelect={(x) => local.model.variant.set(x === "default" ? undefined : x)}
                     class="capitalize max-w-[160px]"
                     valueClass="truncate text-13-regular"
-                    triggerStyle={{ height: "28px", ...springFade(buttonsSpring()) }}
+                    triggerStyle={{
+                      height: "28px",
+                      opacity: buttonsSpring(),
+                      transform: `scale(${0.95 + buttonsSpring() * 0.05})`,
+                      filter: `blur(${(1 - buttonsSpring()) * 2}px)`,
+                      "pointer-events": buttonsSpring() > 0.5 ? "auto" : "none",
+                    }}
                     variant="ghost"
                   />
                 </TooltipKeybind>

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

@@ -6,10 +6,19 @@ let createPromptSubmit: typeof import("./submit").createPromptSubmit
 const createdClients: string[] = []
 const createdSessions: string[] = []
 const enabledAutoAccept: Array<{ sessionID: string; directory: string }> = []
+const optimistic: Array<{
+  message: {
+    agent: string
+    model: { providerID: string; modelID: string }
+    variant?: string
+  }
+}> = []
 const sentShell: string[] = []
 const syncedDirectories: string[] = []
 
+let params: { id?: string } = {}
 let selected = "/repo/worktree-a"
+let variant: string | undefined
 
 const promptValue: Prompt = [{ type: "text", content: "ls", start: 0, end: 2 }]
 
@@ -26,6 +35,7 @@ const clientFor = (directory: string) => {
         return { data: undefined }
       },
       prompt: async () => ({ data: undefined }),
+      promptAsync: async () => ({ data: undefined }),
       command: async () => ({ data: undefined }),
       abort: async () => ({ data: undefined }),
     },
@@ -40,7 +50,7 @@ beforeAll(async () => {
 
   mock.module("@solidjs/router", () => ({
     useNavigate: () => () => undefined,
-    useParams: () => ({}),
+    useParams: () => params,
   }))
 
   mock.module("@opencode-ai/sdk/v2/client", () => ({
@@ -62,7 +72,7 @@ beforeAll(async () => {
     useLocal: () => ({
       model: {
         current: () => ({ id: "model", provider: { id: "provider" } }),
-        variant: { current: () => undefined },
+        variant: { current: () => variant },
       },
       agent: {
         current: () => ({ name: "agent" }),
@@ -118,7 +128,11 @@ beforeAll(async () => {
       data: { command: [] },
       session: {
         optimistic: {
-          add: () => undefined,
+          add: (value: {
+            message: { agent: string; model: { providerID: string; modelID: string }; variant?: string }
+          }) => {
+            optimistic.push(value)
+          },
           remove: () => undefined,
         },
       },
@@ -155,9 +169,12 @@ beforeEach(() => {
   createdClients.length = 0
   createdSessions.length = 0
   enabledAutoAccept.length = 0
+  optimistic.length = 0
+  params = {}
   sentShell.length = 0
   syncedDirectories.length = 0
   selected = "/repo/worktree-a"
+  variant = undefined
 })
 
 describe("prompt submit worktree selection", () => {
@@ -219,4 +236,39 @@ describe("prompt submit worktree selection", () => {
 
     expect(enabledAutoAccept).toEqual([{ sessionID: "session-1", directory: "/repo/worktree-a" }])
   })
+
+  test("includes the selected variant on optimistic prompts", async () => {
+    params = { id: "session-1" }
+    variant = "high"
+
+    const submit = createPromptSubmit({
+      info: () => ({ id: "session-1" }),
+      imageAttachments: () => [],
+      commentCount: () => 0,
+      autoAccept: () => false,
+      mode: () => "normal",
+      working: () => false,
+      editor: () => undefined,
+      queueScroll: () => undefined,
+      promptLength: (value) => value.reduce((sum, part) => sum + ("content" in part ? part.content.length : 0), 0),
+      addToHistory: () => undefined,
+      resetHistoryNavigation: () => undefined,
+      setMode: () => undefined,
+      setPopover: () => undefined,
+      onSubmit: () => undefined,
+    })
+
+    const event = { preventDefault: () => undefined } as unknown as Event
+
+    await submit.handleSubmit(event)
+
+    expect(optimistic).toHaveLength(1)
+    expect(optimistic[0]).toMatchObject({
+      message: {
+        agent: "agent",
+        model: { providerID: "provider", modelID: "model" },
+        variant: "high",
+      },
+    })
+  })
 })

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

@@ -1,9 +1,8 @@
 import type { Message } from "@opencode-ai/sdk/v2/client"
 import { showToast } from "@opencode-ai/ui/toast"
 import { base64Encode } from "@opencode-ai/util/encode"
-import { errorMessage } from "@/pages/layout/helpers"
 import { useNavigate, useParams } from "@solidjs/router"
-import { batch, type Accessor } from "solid-js"
+import type { Accessor } from "solid-js"
 import type { FileSelection } from "@/context/file"
 import { useGlobalSync } from "@/context/global-sync"
 import { useLanguage } from "@/context/language"
@@ -66,7 +65,14 @@ export function createPromptSubmit(input: PromptSubmitInput) {
   const language = useLanguage()
   const params = useParams()
 
-  const toastError = (err: unknown) => errorMessage(err, language.t("common.requestFailed"))
+  const errorMessage = (err: unknown) => {
+    if (err && typeof err === "object" && "data" in err) {
+      const data = (err as { data?: { message?: string } }).data
+      if (data?.message) return data.message
+    }
+    if (err instanceof Error) return err.message
+    return language.t("common.requestFailed")
+  }
 
   const abort = async () => {
     const sessionID = params.id
@@ -152,7 +158,7 @@ export function createPromptSubmit(input: PromptSubmitInput) {
           .catch((err) => {
             showToast({
               title: language.t("prompt.toast.worktreeCreateFailed.title"),
-              description: toastError(err),
+              description: errorMessage(err),
             })
             return undefined
           })
@@ -191,7 +197,7 @@ export function createPromptSubmit(input: PromptSubmitInput) {
         .catch((err) => {
           showToast({
             title: language.t("prompt.toast.sessionCreateFailed.title"),
-            description: toastError(err),
+            description: errorMessage(err),
           })
           return undefined
         })
@@ -249,7 +255,7 @@ export function createPromptSubmit(input: PromptSubmitInput) {
         .catch((err) => {
           showToast({
             title: language.t("prompt.toast.shellSendFailed.title"),
-            description: toastError(err),
+            description: errorMessage(err),
           })
           restoreInput()
         })
@@ -310,6 +316,7 @@ export function createPromptSubmit(input: PromptSubmitInput) {
       time: { created: Date.now() },
       agent,
       model,
+      variant,
     }
 
     const addOptimisticMessage = () =>
@@ -327,14 +334,9 @@ export function createPromptSubmit(input: PromptSubmitInput) {
         messageID,
       })
 
-    batch(() => {
-      removeCommentItems(commentItems)
-      clearInput()
-      if (sessionDirectory === projectDirectory) {
-        sync.set("session_status", session.id, { type: "busy" })
-      }
-      addOptimisticMessage()
-    })
+    removeCommentItems(commentItems)
+    clearInput()
+    addOptimisticMessage()
 
     const waitForWorktree = async () => {
       const worktree = WorktreeState.get(sessionDirectory)
@@ -411,7 +413,7 @@ export function createPromptSubmit(input: PromptSubmitInput) {
       }
       showToast({
         title: language.t("prompt.toast.promptSendFailed.title"),
-        description: toastError(err),
+        description: errorMessage(err),
       })
       removeOptimisticMessage()
       restoreCommentItems(commentItems)

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

@@ -4,7 +4,8 @@ import { useParams } from "@solidjs/router"
 import { useSync } from "@/context/sync"
 import { useLayout } from "@/context/layout"
 import { checksum } from "@opencode-ai/util/encode"
-import { findLast, same } from "@opencode-ai/util/array"
+import { findLast } from "@opencode-ai/util/array"
+import { same } from "@/utils/same"
 import { Icon } from "@opencode-ai/ui/icon"
 import { Accordion } from "@opencode-ai/ui/accordion"
 import { StickyAccordionHeader } from "@opencode-ai/ui/sticky-accordion-header"

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

@@ -303,7 +303,12 @@ export function SessionHeader() {
   })
 
   const canOpen = createMemo(() => platform.platform === "desktop" && !!platform.openPath && server.isLocal())
-  const current = createMemo(() => options().find((o) => o.id === prefs.app) ?? options()[0])
+  const current = createMemo(
+    () =>
+      options().find((o) => o.id === prefs.app) ??
+      options()[0] ??
+      ({ id: "finder", label: fileManager().label, icon: fileManager().icon } as const),
+  )
   const opening = createMemo(() => openRequest.app !== undefined)
 
   const selectApp = (app: OpenApp) => {

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

@@ -4,12 +4,12 @@ import { useSync } from "@/context/sync"
 import { useSDK } from "@/context/sdk"
 import { useLanguage } from "@/context/language"
 import { Icon } from "@opencode-ai/ui/icon"
+import { Mark } from "@opencode-ai/ui/logo"
 import { getDirectory, getFilename } from "@opencode-ai/util/path"
 
 const MAIN_WORKTREE = "main"
 const CREATE_WORKTREE = "create"
-const ROOT_CLASS =
-  "size-full flex flex-col justify-end items-start gap-4 flex-[1_0_0] self-stretch max-w-200 mx-auto 2xl:max-w-[1000px] px-6 pb-16"
+const ROOT_CLASS = "size-full flex flex-col"
 
 interface NewSessionViewProps {
   worktree: string
@@ -50,33 +50,43 @@ export function NewSessionView(props: NewSessionViewProps) {
 
   return (
     <div class={ROOT_CLASS}>
-      <div class="text-20-medium text-text-weaker">{language.t("command.session.new")}</div>
-      <div class="flex justify-center items-start gap-3 min-h-5">
-        <Icon name="folder" size="small" class="mt-0.5 shrink-0" />
-        <div class="text-12-medium text-text-weak select-text leading-5">
-          {getDirectory(projectRoot())}
-          <span class="text-text-strong">{getFilename(projectRoot())}</span>
+      <div class="h-12 shrink-0" aria-hidden />
+      <div class="flex-1 px-6 pb-30 flex items-center justify-center text-center">
+        <div class="w-full max-w-200 flex flex-col items-center text-center gap-4">
+          <div class="flex flex-col items-center gap-6">
+            <Mark class="w-10" />
+            <div class="text-20-medium text-text-strong">{language.t("session.new.title")}</div>
+          </div>
+          <div class="w-full flex flex-col gap-4 items-center">
+            <div class="flex items-start justify-center gap-3 min-h-5">
+              <div class="text-12-medium text-text-weak select-text leading-5 min-w-0 max-w-160 break-words text-center">
+                {getDirectory(projectRoot())}
+                <span class="text-text-strong">{getFilename(projectRoot())}</span>
+              </div>
+            </div>
+            <div class="flex items-start justify-center gap-1.5 min-h-5">
+              <Icon name="branch" size="small" class="mt-0.5 shrink-0" />
+              <div class="text-12-medium text-text-weak select-text leading-5 min-w-0 max-w-160 break-words text-center">
+                {label(current())}
+              </div>
+            </div>
+            <Show when={sync.project}>
+              {(project) => (
+                <div class="flex items-start justify-center gap-3 min-h-5">
+                  <div class="text-12-medium text-text-weak leading-5 min-w-0 max-w-160 break-words text-center">
+                    {language.t("session.new.lastModified")}&nbsp;
+                    <span class="text-text-strong">
+                      {DateTime.fromMillis(project().time.updated ?? project().time.created)
+                        .setLocale(language.intl())
+                        .toRelative()}
+                    </span>
+                  </div>
+                </div>
+              )}
+            </Show>
+          </div>
         </div>
       </div>
-      <div class="flex justify-center items-start gap-3 min-h-5">
-        <Icon name="branch" size="small" class="mt-0.5 shrink-0" />
-        <div class="text-12-medium text-text-weak select-text leading-5">{label(current())}</div>
-      </div>
-      <Show when={sync.project}>
-        {(project) => (
-          <div class="flex justify-center items-start gap-3 min-h-5">
-            <Icon name="pencil-line" size="small" class="mt-0.5 shrink-0" />
-            <div class="text-12-medium text-text-weak leading-5">
-              {language.t("session.new.lastModified")}&nbsp;
-              <span class="text-text-strong">
-                {DateTime.fromMillis(project().time.updated ?? project().time.created)
-                  .setLocale(language.intl())
-                  .toRelative()}
-              </span>
-            </div>
-          </div>
-        )}
-      </Show>
     </div>
   )
 }

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

@@ -288,6 +288,29 @@ export const SettingsGeneral: Component = () => {
           </div>
         </SettingsRow>
 
+        <SettingsRow
+          title={language.t("settings.general.row.shellToolPartsExpanded.title")}
+          description={language.t("settings.general.row.shellToolPartsExpanded.description")}
+        >
+          <div data-action="settings-feed-shell-tool-parts-expanded">
+            <Switch
+              checked={settings.general.shellToolPartsExpanded()}
+              onChange={(checked) => settings.general.setShellToolPartsExpanded(checked)}
+            />
+          </div>
+        </SettingsRow>
+
+        <SettingsRow
+          title={language.t("settings.general.row.editToolPartsExpanded.title")}
+          description={language.t("settings.general.row.editToolPartsExpanded.description")}
+        >
+          <div data-action="settings-feed-edit-tool-parts-expanded">
+            <Switch
+              checked={settings.general.editToolPartsExpanded()}
+              onChange={(checked) => settings.general.setEditToolPartsExpanded(checked)}
+            />
+          </div>
+        </SettingsRow>
       </div>
     </div>
   )

packages/app/src/components/terminal.tsx

@@ -217,7 +217,7 @@ export const Terminal = (props: TerminalProps) => {
     const currentTheme = theme.themes()[theme.themeId()]
     if (!currentTheme) return fallback
     const variant = mode === "dark" ? currentTheme.dark : currentTheme.light
-    if (!variant?.seeds) return fallback
+    if (!variant?.seeds && !variant?.palette) return fallback
     const resolved = resolveThemeVariant(variant, mode === "dark")
     const text = resolved["text-stronger"] ?? fallback.foreground
     const background = resolved["background-stronger"] ?? fallback.background

packages/app/src/components/titlebar.tsx

@@ -155,7 +155,7 @@ export function Titlebar() {
 
   return (
     <header
-      class="h-10 shrink-0 bg-background-base relative grid grid-cols-[auto_minmax(0,1fr)_auto] items-center"
+      class="h-10 shrink-0 bg-background-base relative grid grid-cols-[minmax(0,1fr)_auto_minmax(0,1fr)] items-center"
       style={{ "min-height": minHeight() }}
       data-tauri-drag-region
       onMouseDown={drag}
@@ -269,7 +269,7 @@ export function Titlebar() {
       </div>
 
       <div class="min-w-0 flex items-center justify-center pointer-events-none">
-        <div id="opencode-titlebar-center" class="pointer-events-auto w-full min-w-0 flex justify-center lg:w-fit" />
+        <div id="opencode-titlebar-center" class="pointer-events-auto min-w-0 flex justify-center w-fit max-w-full" />
       </div>
 
       <div

packages/app/src/context/command.tsx

@@ -4,7 +4,6 @@ import { createSimpleContext } from "@opencode-ai/ui/context"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { useLanguage } from "@/context/language"
 import { useSettings } from "@/context/settings"
-import { isEditableTarget } from "@/utils/dom"
 import { Persist, persisted } from "@/utils/persist"
 
 const IS_MAC = typeof navigator === "object" && /(Mac|iPod|iPhone|iPad)/.test(navigator.platform)
@@ -178,6 +177,14 @@ export function formatKeybind(config: string): string {
   return IS_MAC ? parts.join("") : parts.join("+")
 }
 
+function isEditableTarget(target: EventTarget | null) {
+  if (!(target instanceof HTMLElement)) return false
+  if (target.isContentEditable) return true
+  if (target.closest("[contenteditable='true']")) return true
+  if (target.closest("input, textarea, select")) return true
+  return false
+}
+
 export const { use: useCommand, provider: CommandProvider } = createSimpleContext({
   name: "Command",
   init: () => {

packages/app/src/context/global-sync.tsx

@@ -27,7 +27,7 @@ import type { InitError } from "../pages/error"
 import { useGlobalSDK } from "./global-sdk"
 import { bootstrapDirectory, bootstrapGlobal } from "./global-sync/bootstrap"
 import { createChildStoreManager } from "./global-sync/child-store"
-import { applyDirectoryEvent, applyGlobalEvent } from "./global-sync/event-reducer"
+import { applyDirectoryEvent, applyGlobalEvent, cleanupDroppedSessionCaches } from "./global-sync/event-reducer"
 import { createRefreshQueue } from "./global-sync/queue"
 import { estimateRootSessionTotal, loadRootSessionsWithFallback } from "./global-sync/session-load"
 import { trimSessions } from "./global-sync/session-trim"
@@ -189,6 +189,7 @@ function createGlobalSync() {
       })
       if (next.length !== store.session.length) {
         setStore("session", reconcile(next, { key: "id" }))
+        cleanupDroppedSessionCaches(store, setStore, next, setSessionTodo)
       }
       children.unpin(directory)
       return
@@ -220,6 +221,7 @@ function createGlobalSync() {
           }),
         )
         setStore("session", reconcile(sessions, { key: "id" }))
+        cleanupDroppedSessionCaches(store, setStore, sessions, setSessionTodo)
         sessionMeta.set(directory, { limit })
       })
       .catch((err) => {
@@ -353,6 +355,7 @@ function createGlobalSync() {
       .update({ config })
       .then(bootstrap)
       .then(() => {
+        queue.refresh()
         setGlobalStore("reload", undefined)
         queue.refresh()
       })

packages/app/src/context/global-sync/event-reducer.test.ts

@@ -2,7 +2,7 @@ import { describe, expect, test } from "bun:test"
 import type { Message, Part, PermissionRequest, Project, QuestionRequest, Session } from "@opencode-ai/sdk/v2/client"
 import { createStore } from "solid-js/store"
 import type { State } from "./types"
-import { applyDirectoryEvent, applyGlobalEvent } from "./event-reducer"
+import { applyDirectoryEvent, applyGlobalEvent, cleanupDroppedSessionCaches } from "./event-reducer"
 
 const rootSession = (input: { id: string; parentID?: string; archived?: number }) =>
   ({
@@ -248,6 +248,62 @@ describe("applyDirectoryEvent", () => {
     }
   })
 
+  test("cleans caches for trimmed sessions on session.created", () => {
+    const dropped = rootSession({ id: "ses_b" })
+    const kept = rootSession({ id: "ses_a" })
+    const message = userMessage("msg_1", dropped.id)
+    const todos: string[] = []
+    const [store, setStore] = createStore(
+      baseState({
+        limit: 1,
+        session: [dropped],
+        message: { [dropped.id]: [message] },
+        part: { [message.id]: [textPart("prt_1", dropped.id, message.id)] },
+        session_diff: { [dropped.id]: [] },
+        todo: { [dropped.id]: [] },
+        permission: { [dropped.id]: [] },
+        question: { [dropped.id]: [] },
+        session_status: { [dropped.id]: { type: "busy" } },
+      }),
+    )
+
+    applyDirectoryEvent({
+      event: { type: "session.created", properties: { info: kept } },
+      store,
+      setStore,
+      push() {},
+      directory: "/tmp",
+      loadLsp() {},
+      setSessionTodo(sessionID, value) {
+        if (value !== undefined) return
+        todos.push(sessionID)
+      },
+    })
+
+    expect(store.session.map((x) => x.id)).toEqual([kept.id])
+    expect(store.message[dropped.id]).toBeUndefined()
+    expect(store.part[message.id]).toBeUndefined()
+    expect(store.session_diff[dropped.id]).toBeUndefined()
+    expect(store.todo[dropped.id]).toBeUndefined()
+    expect(store.permission[dropped.id]).toBeUndefined()
+    expect(store.question[dropped.id]).toBeUndefined()
+    expect(store.session_status[dropped.id]).toBeUndefined()
+    expect(todos).toEqual([dropped.id])
+  })
+
+  test("cleanupDroppedSessionCaches clears part-only orphan state", () => {
+    const [store, setStore] = createStore(
+      baseState({
+        session: [rootSession({ id: "ses_keep" })],
+        part: { msg_1: [textPart("prt_1", "ses_drop", "msg_1")] },
+      }),
+    )
+
+    cleanupDroppedSessionCaches(store, setStore, store.session)
+
+    expect(store.part.msg_1).toBeUndefined()
+  })
+
   test("upserts and removes messages while clearing orphaned parts", () => {
     const sessionID = "ses_1"
     const [store, setStore] = createStore(

packages/app/src/context/global-sync/event-reducer.ts

@@ -13,6 +13,7 @@ import type {
 } from "@opencode-ai/sdk/v2/client"
 import type { State, VcsCache } from "./types"
 import { trimSessions } from "./session-trim"
+import { dropSessionCaches } from "./session-cache"
 
 export function applyGlobalEvent(input: {
   event: { type: string; properties?: unknown }
@@ -40,37 +41,44 @@ export function applyGlobalEvent(input: {
 }
 
 function cleanupSessionCaches(
-  store: Store<State>,
   setStore: SetStoreFunction<State>,
   sessionID: string,
   setSessionTodo?: (sessionID: string, todos: Todo[] | undefined) => void,
 ) {
   if (!sessionID) return
-  const hasAny =
-    store.message[sessionID] !== undefined ||
-    store.session_diff[sessionID] !== undefined ||
-    store.todo[sessionID] !== undefined ||
-    store.permission[sessionID] !== undefined ||
-    store.question[sessionID] !== undefined ||
-    store.session_status[sessionID] !== undefined
   setSessionTodo?.(sessionID, undefined)
-  if (!hasAny) return
   setStore(
     produce((draft) => {
-      const messages = draft.message[sessionID]
-      if (messages) {
-        for (const message of messages) {
-          const id = message?.id
-          if (!id) continue
-          delete draft.part[id]
-        }
-      }
-      delete draft.message[sessionID]
-      delete draft.session_diff[sessionID]
-      delete draft.todo[sessionID]
-      delete draft.permission[sessionID]
-      delete draft.question[sessionID]
-      delete draft.session_status[sessionID]
+      dropSessionCaches(draft, [sessionID])
+    }),
+  )
+}
+
+export function cleanupDroppedSessionCaches(
+  store: Store<State>,
+  setStore: SetStoreFunction<State>,
+  next: Session[],
+  setSessionTodo?: (sessionID: string, todos: Todo[] | undefined) => void,
+) {
+  const keep = new Set(next.map((item) => item.id))
+  const stale = [
+    ...Object.keys(store.message),
+    ...Object.keys(store.session_diff),
+    ...Object.keys(store.todo),
+    ...Object.keys(store.permission),
+    ...Object.keys(store.question),
+    ...Object.keys(store.session_status),
+    ...Object.values(store.part)
+      .map((parts) => parts?.find((part) => !!part?.sessionID)?.sessionID)
+      .filter((sessionID): sessionID is string => !!sessionID),
+  ].filter((sessionID, index, list) => !keep.has(sessionID) && list.indexOf(sessionID) === index)
+  if (stale.length === 0) return
+  for (const sessionID of stale) {
+    setSessionTodo?.(sessionID, undefined)
+  }
+  setStore(
+    produce((draft) => {
+      dropSessionCaches(draft, stale)
     }),
   )
 }
@@ -102,6 +110,7 @@ export function applyDirectoryEvent(input: {
       next.splice(result.index, 0, info)
       const trimmed = trimSessions(next, { limit: input.store.limit, permission: input.store.permission })
       input.setStore("session", reconcile(trimmed, { key: "id" }))
+      cleanupDroppedSessionCaches(input.store, input.setStore, trimmed, input.setSessionTodo)
       if (!info.parentID) input.setStore("sessionTotal", (value) => value + 1)
       break
     }
@@ -117,7 +126,7 @@ export function applyDirectoryEvent(input: {
             }),
           )
         }
-        cleanupSessionCaches(input.store, input.setStore, info.id, input.setSessionTodo)
+        cleanupSessionCaches(input.setStore, info.id, input.setSessionTodo)
         if (info.parentID) break
         input.setStore("sessionTotal", (value) => Math.max(0, value - 1))
         break
@@ -130,6 +139,7 @@ export function applyDirectoryEvent(input: {
       next.splice(result.index, 0, info)
       const trimmed = trimSessions(next, { limit: input.store.limit, permission: input.store.permission })
       input.setStore("session", reconcile(trimmed, { key: "id" }))
+      cleanupDroppedSessionCaches(input.store, input.setStore, trimmed, input.setSessionTodo)
       break
     }
     case "session.deleted": {
@@ -143,7 +153,7 @@ export function applyDirectoryEvent(input: {
           }),
         )
       }
-      cleanupSessionCaches(input.store, input.setStore, info.id, input.setSessionTodo)
+      cleanupSessionCaches(input.setStore, info.id, input.setSessionTodo)
       if (info.parentID) break
       input.setStore("sessionTotal", (value) => Math.max(0, value - 1))
       break

packages/app/src/context/global-sync/session-cache.test.ts

@@ -0,0 +1,102 @@
+import { describe, expect, test } from "bun:test"
+import type {
+  FileDiff,
+  Message,
+  Part,
+  PermissionRequest,
+  QuestionRequest,
+  SessionStatus,
+  Todo,
+} from "@opencode-ai/sdk/v2/client"
+import { dropSessionCaches, pickSessionCacheEvictions } from "./session-cache"
+
+const msg = (id: string, sessionID: string) =>
+  ({
+    id,
+    sessionID,
+    role: "user",
+    time: { created: 1 },
+    agent: "assistant",
+    model: { providerID: "openai", modelID: "gpt" },
+  }) as Message
+
+const part = (id: string, sessionID: string, messageID: string) =>
+  ({
+    id,
+    sessionID,
+    messageID,
+    type: "text",
+    text: id,
+  }) as Part
+
+describe("app session cache", () => {
+  test("dropSessionCaches clears orphaned parts without message rows", () => {
+    const store: {
+      session_status: Record<string, SessionStatus | undefined>
+      session_diff: Record<string, FileDiff[] | undefined>
+      todo: Record<string, Todo[] | undefined>
+      message: Record<string, Message[] | undefined>
+      part: Record<string, Part[] | undefined>
+      permission: Record<string, PermissionRequest[] | undefined>
+      question: Record<string, QuestionRequest[] | undefined>
+    } = {
+      session_status: { ses_1: { type: "busy" } as SessionStatus },
+      session_diff: { ses_1: [] },
+      todo: { ses_1: [] as Todo[] },
+      message: {},
+      part: { msg_1: [part("prt_1", "ses_1", "msg_1")] },
+      permission: { ses_1: [] as PermissionRequest[] },
+      question: { ses_1: [] as QuestionRequest[] },
+    }
+
+    dropSessionCaches(store, ["ses_1"])
+
+    expect(store.message.ses_1).toBeUndefined()
+    expect(store.part.msg_1).toBeUndefined()
+    expect(store.todo.ses_1).toBeUndefined()
+    expect(store.session_diff.ses_1).toBeUndefined()
+    expect(store.session_status.ses_1).toBeUndefined()
+    expect(store.permission.ses_1).toBeUndefined()
+    expect(store.question.ses_1).toBeUndefined()
+  })
+
+  test("dropSessionCaches clears message-backed parts", () => {
+    const m = msg("msg_1", "ses_1")
+    const store: {
+      session_status: Record<string, SessionStatus | undefined>
+      session_diff: Record<string, FileDiff[] | undefined>
+      todo: Record<string, Todo[] | undefined>
+      message: Record<string, Message[] | undefined>
+      part: Record<string, Part[] | undefined>
+      permission: Record<string, PermissionRequest[] | undefined>
+      question: Record<string, QuestionRequest[] | undefined>
+    } = {
+      session_status: {},
+      session_diff: {},
+      todo: {},
+      message: { ses_1: [m] },
+      part: { [m.id]: [part("prt_1", "ses_1", m.id)] },
+      permission: {},
+      question: {},
+    }
+
+    dropSessionCaches(store, ["ses_1"])
+
+    expect(store.message.ses_1).toBeUndefined()
+    expect(store.part[m.id]).toBeUndefined()
+  })
+
+  test("pickSessionCacheEvictions preserves requested sessions", () => {
+    const seen = new Set(["ses_1", "ses_2", "ses_3"])
+
+    const stale = pickSessionCacheEvictions({
+      seen,
+      keep: "ses_4",
+      limit: 2,
+      preserve: ["ses_1"],
+    })
+
+    expect(stale).toEqual(["ses_2", "ses_3"])
+    expect([...seen]).toEqual(["ses_1", "ses_4"])
+  })
+})

packages/app/src/context/global-sync/session-cache.ts

@@ -0,0 +1,62 @@
+import type {
+  FileDiff,
+  Message,
+  Part,
+  PermissionRequest,
+  QuestionRequest,
+  SessionStatus,
+  Todo,
+} from "@opencode-ai/sdk/v2/client"
+
+export const SESSION_CACHE_LIMIT = 40
+
+type SessionCache = {
+  session_status: Record<string, SessionStatus | undefined>
+  session_diff: Record<string, FileDiff[] | undefined>
+  todo: Record<string, Todo[] | undefined>
+  message: Record<string, Message[] | undefined>
+  part: Record<string, Part[] | undefined>
+  permission: Record<string, PermissionRequest[] | undefined>
+  question: Record<string, QuestionRequest[] | undefined>
+}
+
+export function dropSessionCaches(store: SessionCache, sessionIDs: Iterable<string>) {
+  const stale = new Set(Array.from(sessionIDs).filter(Boolean))
+  if (stale.size === 0) return
+
+  for (const key of Object.keys(store.part)) {
+    const parts = store.part[key]
+    if (!parts?.some((part) => stale.has(part?.sessionID ?? ""))) continue
+    delete store.part[key]
+  }
+
+  for (const sessionID of stale) {
+    delete store.message[sessionID]
+    delete store.todo[sessionID]
+    delete store.session_diff[sessionID]
+    delete store.session_status[sessionID]
+    delete store.permission[sessionID]
+    delete store.question[sessionID]
+  }
+}
+
+export function pickSessionCacheEvictions(input: {
+  seen: Set<string>
+  keep: string
+  limit: number
+  preserve?: Iterable<string>
+}) {
+  const stale: string[] = []
+  const keep = new Set([input.keep, ...Array.from(input.preserve ?? [])])
+  if (input.seen.has(input.keep)) input.seen.delete(input.keep)
+  input.seen.add(input.keep)
+  for (const id of input.seen) {
+    if (input.seen.size - stale.length <= input.limit) break
+    if (keep.has(id)) continue
+    stale.push(id)
+  }
+  for (const id of stale) {
+    input.seen.delete(id)
+  }
+  return stale
+}

packages/app/src/context/language.tsx

@@ -146,6 +146,7 @@ const DICT: Record<Locale, Dictionary> = {
 }
 
 const localeMatchers: Array<{ locale: Locale; match: (language: string) => boolean }> = [
+  { locale: "en", match: (language) => language.startsWith("en") },
   { locale: "zht", match: (language) => language.startsWith("zh") && language.includes("hant") },
   { locale: "zh", match: (language) => language.startsWith("zh") },
   { locale: "ko", match: (language) => language.startsWith("ko") },
@@ -217,6 +218,7 @@ export const { use: useLanguage, provider: LanguageProvider } = createSimpleCont
     )
 
     const locale = createMemo<Locale>(() => normalizeLocale(store.locale))
+    console.log("locale", locale())
     const intl = createMemo(() => INTL[locale()])
 
     const dict = createMemo<Dictionary>(() => DICT[locale()])

packages/app/src/context/layout.tsx

@@ -8,7 +8,7 @@ import { usePlatform } from "./platform"
 import { Project } from "@opencode-ai/sdk/v2"
 import { Persist, persisted, removePersisted } from "@/utils/persist"
 import { decode64 } from "@/utils/base64"
-import { same } from "@opencode-ai/util/array"
+import { same } from "@/utils/same"
 import { createScrollPersistence, type SessionScroll } from "./layout-scroll"
 import { createPathHelpers } from "./file/path"
 

packages/app/src/context/permission-auto-respond.test.ts

@@ -1,7 +1,7 @@
 import { describe, expect, test } from "bun:test"
 import type { PermissionRequest, Session } from "@opencode-ai/sdk/v2/client"
 import { base64Encode } from "@opencode-ai/util/encode"
-import { autoRespondsPermission } from "./permission-auto-respond"
+import { autoRespondsPermission, isDirectoryAutoAccepting } from "./permission-auto-respond"
 
 const session = (input: { id: string; parentID?: string }) =>
   ({
@@ -60,4 +60,43 @@ describe("autoRespondsPermission", () => {
 
     expect(autoRespondsPermission(autoAccept, sessions, permission("child"), directory)).toBe(true)
   })
+
+  test("falls back to directory-level auto-accept", () => {
+    const directory = "/tmp/project"
+    const sessions = [session({ id: "root" })]
+    const autoAccept = {
+      [`${base64Encode(directory)}/*`]: true,
+    }
+
+    expect(autoRespondsPermission(autoAccept, sessions, permission("root"), directory)).toBe(true)
+  })
+
+  test("session-level override takes precedence over directory-level", () => {
+    const directory = "/tmp/project"
+    const sessions = [session({ id: "root" })]
+    const autoAccept = {
+      [`${base64Encode(directory)}/*`]: true,
+      [`${base64Encode(directory)}/root`]: false,
+    }
+
+    expect(autoRespondsPermission(autoAccept, sessions, permission("root"), directory)).toBe(false)
+  })
+})
+
+describe("isDirectoryAutoAccepting", () => {
+  test("returns true when directory key is set", () => {
+    const directory = "/tmp/project"
+    const autoAccept = { [`${base64Encode(directory)}/*`]: true }
+    expect(isDirectoryAutoAccepting(autoAccept, directory)).toBe(true)
+  })
+
+  test("returns false when directory key is not set", () => {
+    expect(isDirectoryAutoAccepting({}, "/tmp/project")).toBe(false)
+  })
+
+  test("returns false when directory key is explicitly false", () => {
+    const directory = "/tmp/project"
+    const autoAccept = { [`${base64Encode(directory)}/*`]: false }
+    expect(isDirectoryAutoAccepting(autoAccept, directory)).toBe(false)
+  })
 })

packages/app/src/context/permission-auto-respond.ts

@@ -5,9 +5,19 @@ export function acceptKey(sessionID: string, directory?: string) {
   return `${base64Encode(directory)}/${sessionID}`
 }
 
+export function directoryAcceptKey(directory: string) {
+  return `${base64Encode(directory)}/*`
+}
+
 function accepted(autoAccept: Record<string, boolean>, sessionID: string, directory?: string) {
   const key = acceptKey(sessionID, directory)
-  return autoAccept[key] ?? autoAccept[sessionID]
+  const directoryKey = directory ? directoryAcceptKey(directory) : undefined
+  return autoAccept[key] ?? autoAccept[sessionID] ?? (directoryKey ? autoAccept[directoryKey] : undefined)
+}
+
+export function isDirectoryAutoAccepting(autoAccept: Record<string, boolean>, directory: string) {
+  const key = directoryAcceptKey(directory)
+  return autoAccept[key] ?? false
 }
 
 function sessionLineage(session: { id: string; parentID?: string }[], sessionID: string) {

packages/app/src/context/permission.tsx

@@ -1,4 +1,4 @@
-import { createMemo, onCleanup } from "solid-js"
+import { createEffect, createMemo, onCleanup } from "solid-js"
 import { createStore, produce } from "solid-js/store"
 import { createSimpleContext } from "@opencode-ai/ui/context"
 import type { PermissionRequest } from "@opencode-ai/sdk/v2/client"
@@ -7,7 +7,12 @@ import { useGlobalSDK } from "@/context/global-sdk"
 import { useGlobalSync } from "./global-sync"
 import { useParams } from "@solidjs/router"
 import { decode64 } from "@/utils/base64"
-import { acceptKey, autoRespondsPermission } from "./permission-auto-respond"
+import {
+  acceptKey,
+  directoryAcceptKey,
+  isDirectoryAutoAccepting,
+  autoRespondsPermission,
+} from "./permission-auto-respond"
 
 type PermissionRespondFn = (input: {
   sessionID: string
@@ -76,6 +81,25 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
       }),
     )
 
+    // When config has permission: "allow", auto-enable directory-level auto-accept
+    createEffect(() => {
+      if (!ready()) return
+      const directory = decode64(params.dir)
+      if (!directory) return
+      const [childStore] = globalSync.child(directory)
+      const perm = childStore.config.permission
+      if (typeof perm === "string" && perm === "allow") {
+        const key = directoryAcceptKey(directory)
+        if (store.autoAccept[key] === undefined) {
+          setStore(
+            produce((draft) => {
+              draft.autoAccept[key] = true
+            }),
+          )
+        }
+      }
+    })
+
     const MAX_RESPONDED = 1000
     const RESPONDED_TTL_MS = 60 * 60 * 1000
     const responded = new Map<string, number>()
@@ -119,6 +143,10 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
       return autoRespondsPermission(store.autoAccept, session, { sessionID }, directory)
     }
 
+    function isAutoAcceptingDirectory(directory: string) {
+      return isDirectoryAutoAccepting(store.autoAccept, directory)
+    }
+
     function shouldAutoRespond(permission: PermissionRequest, directory?: string) {
       const session = directory ? globalSync.child(directory, { bootstrap: false })[0].session : []
       return autoRespondsPermission(store.autoAccept, session, permission, directory)
@@ -142,6 +170,36 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
     })
     onCleanup(unsubscribe)
 
+    function enableDirectory(directory: string) {
+      const key = directoryAcceptKey(directory)
+      setStore(
+        produce((draft) => {
+          draft.autoAccept[key] = true
+        }),
+      )
+
+      globalSDK.client.permission
+        .list({ directory })
+        .then((x) => {
+          if (!isAutoAcceptingDirectory(directory)) return
+          for (const perm of x.data ?? []) {
+            if (!perm?.id) continue
+            if (!shouldAutoRespond(perm, directory)) continue
+            respondOnce(perm, directory)
+          }
+        })
+        .catch(() => undefined)
+    }
+
+    function disableDirectory(directory: string) {
+      const key = directoryAcceptKey(directory)
+      setStore(
+        produce((draft) => {
+          draft.autoAccept[key] = false
+        }),
+      )
+    }
+
     function enable(sessionID: string, directory: string) {
       const key = acceptKey(sessionID, directory)
       const version = bumpEnableVersion(sessionID, directory)
@@ -185,6 +243,7 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
         return shouldAutoRespond(permission, directory)
       },
       isAutoAccepting,
+      isAutoAcceptingDirectory,
       toggleAutoAccept(sessionID: string, directory: string) {
         if (isAutoAccepting(sessionID, directory)) {
           disable(sessionID, directory)
@@ -193,6 +252,13 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
 
         enable(sessionID, directory)
       },
+      toggleAutoAcceptDirectory(directory: string) {
+        if (isAutoAcceptingDirectory(directory)) {
+          disableDirectory(directory)
+          return
+        }
+        enableDirectory(directory)
+      },
       enableAutoAccept(sessionID: string, directory: string) {
         if (isAutoAccepting(sessionID, directory)) return
         enable(sessionID, directory)
@@ -201,6 +267,11 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
         disable(sessionID, directory)
       },
       permissionsEnabled,
+      isPermissionAllowAll(directory: string) {
+        const [childStore] = globalSync.child(directory)
+        const perm = childStore.config.permission
+        return typeof perm === "string" && perm === "allow"
+      },
     }
   },
 })

packages/app/src/context/settings.tsx

@@ -23,6 +23,8 @@ export interface Settings {
     autoSave: boolean
     releaseNotes: boolean
     showReasoningSummaries: boolean
+    shellToolPartsExpanded: boolean
+    editToolPartsExpanded: boolean
   }
   updates: {
     startup: boolean
@@ -44,6 +46,8 @@ const defaultSettings: Settings = {
     autoSave: true,
     releaseNotes: true,
     showReasoningSummaries: false,
+    shellToolPartsExpanded: true,
+    editToolPartsExpanded: false,
   },
   updates: {
     startup: true,
@@ -129,6 +133,20 @@ export const { use: useSettings, provider: SettingsProvider } = createSimpleCont
         setShowReasoningSummaries(value: boolean) {
           setStore("general", "showReasoningSummaries", value)
         },
+        shellToolPartsExpanded: withFallback(
+          () => store.general?.shellToolPartsExpanded,
+          defaultSettings.general.shellToolPartsExpanded,
+        ),
+        setShellToolPartsExpanded(value: boolean) {
+          setStore("general", "shellToolPartsExpanded", value)
+        },
+        editToolPartsExpanded: withFallback(
+          () => store.general?.editToolPartsExpanded,
+          defaultSettings.general.editToolPartsExpanded,
+        ),
+        setEditToolPartsExpanded(value: boolean) {
+          setStore("general", "editToolPartsExpanded", value)
+        },
       },
       updates: {
         startup: withFallback(() => store.updates?.startup, defaultSettings.updates.startup),

packages/app/src/context/sync.tsx

@@ -6,6 +6,7 @@ import { createSimpleContext } from "@opencode-ai/ui/context"
 import { useGlobalSync } from "./global-sync"
 import { useSDK } from "./sdk"
 import type { Message, Part } from "@opencode-ai/sdk/v2/client"
+import { SESSION_CACHE_LIMIT, dropSessionCaches, pickSessionCacheEvictions } from "./global-sync/session-cache"
 
 function sortParts(parts: Part[]) {
   return parts.filter((part) => !!part?.id).sort((a, b) => cmp(a.id, b.id))
@@ -108,6 +109,8 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
     const inflight = new Map<string, Promise<void>>()
     const inflightDiff = new Map<string, Promise<void>>()
     const inflightTodo = new Map<string, Promise<void>>()
+    const maxDirs = 30
+    const seen = new Map<string, Set<string>>()
     const [meta, setMeta] = createStore({
       limit: {} as Record<string, number>,
       complete: {} as Record<string, boolean>,
@@ -121,6 +124,62 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
       return undefined
     }
 
+    const seenFor = (directory: string) => {
+      const existing = seen.get(directory)
+      if (existing) {
+        seen.delete(directory)
+        seen.set(directory, existing)
+        return existing
+      }
+      const created = new Set<string>()
+      seen.set(directory, created)
+      while (seen.size > maxDirs) {
+        const first = seen.keys().next().value
+        if (!first) break
+        const stale = [...(seen.get(first) ?? [])]
+        seen.delete(first)
+        const [, setStore] = globalSync.child(first, { bootstrap: false })
+        evict(first, setStore, stale)
+      }
+      return created
+    }
+
+    const clearMeta = (directory: string, sessionIDs: string[]) => {
+      if (sessionIDs.length === 0) return
+      setMeta(
+        produce((draft) => {
+          for (const sessionID of sessionIDs) {
+            const key = keyFor(directory, sessionID)
+            delete draft.limit[key]
+            delete draft.complete[key]
+            delete draft.loading[key]
+          }
+        }),
+      )
+    }
+
+    const evict = (directory: string, setStore: Setter, sessionIDs: string[]) => {
+      if (sessionIDs.length === 0) return
+      for (const sessionID of sessionIDs) {
+        globalSync.todo.set(sessionID, undefined)
+      }
+      setStore(
+        produce((draft) => {
+          dropSessionCaches(draft, sessionIDs)
+        }),
+      )
+      clearMeta(directory, sessionIDs)
+    }
+
+    const touch = (directory: string, setStore: Setter, sessionID: string) => {
+      const stale = pickSessionCacheEvictions({
+        seen: seenFor(directory),
+        keep: sessionID,
+        limit: SESSION_CACHE_LIMIT,
+      })
+      evict(directory, setStore, stale)
+    }
+
     const fetchMessages = async (input: { client: typeof sdk.client; sessionID: string; limit: number }) => {
       const messages = await retry(() =>
         input.client.session.messages({ sessionID: input.sessionID, limit: input.limit }),
@@ -135,6 +194,8 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
       }
     }
 
+    const tracked = (directory: string, sessionID: string) => seen.get(directory)?.has(sessionID) ?? false
+
     const loadMessages = async (input: {
       directory: string
       client: typeof sdk.client
@@ -148,6 +209,7 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
       setMeta("loading", key, true)
       await fetchMessages(input)
         .then((next) => {
+          if (!tracked(input.directory, input.sessionID)) return
           batch(() => {
             input.setStore("message", input.sessionID, reconcile(next.session, { key: "id" }))
             for (const p of next.part) {
@@ -158,6 +220,7 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
           })
         })
         .finally(() => {
+          if (!tracked(input.directory, input.sessionID)) return
           setMeta("loading", key, false)
         })
     }
@@ -199,6 +262,7 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
           parts: Part[]
           agent: string
           model: { providerID: string; modelID: string }
+          variant?: string
         }) {
           const message: Message = {
             id: input.messageID,
@@ -207,6 +271,7 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
             time: { created: Date.now() },
             agent: input.agent,
             model: input.model,
+            variant: input.variant,
           }
           const [, setStore] = target()
           setOptimisticAdd(setStore as (...args: unknown[]) => void, {
@@ -222,11 +287,16 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
           const key = keyFor(directory, sessionID)
           const hasSession = Binary.search(store.session, sessionID, (s) => s.id).found
 
+          touch(directory, setStore, sessionID)
+
+          if (store.message[sessionID] !== undefined && hasSession && meta.limit[key] !== undefined) return
+
           const limit = meta.limit[key] ?? messagePageSize
 
           const sessionReq = hasSession
             ? Promise.resolve()
             : retry(() => client.session.get({ sessionID })).then((session) => {
+                if (!tracked(directory, sessionID)) return
                 const data = session.data
                 if (!data) return
                 setStore(
@@ -256,11 +326,13 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
           const directory = sdk.directory
           const client = sdk.client
           const [store, setStore] = globalSync.child(directory)
+          touch(directory, setStore, sessionID)
           if (store.session_diff[sessionID] !== undefined) return
 
           const key = keyFor(directory, sessionID)
           return runInflight(inflightDiff, key, () =>
             retry(() => client.session.diff({ sessionID })).then((diff) => {
+              if (!tracked(directory, sessionID)) return
               setStore("session_diff", sessionID, reconcile(diff.data ?? [], { key: "file" }))
             }),
           )
@@ -269,6 +341,7 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
           const directory = sdk.directory
           const client = sdk.client
           const [store, setStore] = globalSync.child(directory)
+          touch(directory, setStore, sessionID)
           const existing = store.todo[sessionID]
           const cached = globalSync.data.session_todo[sessionID]
           if (existing !== undefined) {
@@ -285,6 +358,7 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
           const key = keyFor(directory, sessionID)
           return runInflight(inflightTodo, key, () =>
             retry(() => client.session.todo({ sessionID })).then((todo) => {
+              if (!tracked(directory, sessionID)) return
               const list = todo.data ?? []
               setStore("todo", sessionID, reconcile(list, { key: "id" }))
               globalSync.todo.set(sessionID, list)
@@ -308,6 +382,7 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
             const directory = sdk.directory
             const client = sdk.client
             const [, setStore] = globalSync.child(directory)
+            touch(directory, setStore, sessionID)
             const key = keyFor(directory, sessionID)
             const step = count ?? messagePageSize
             if (meta.loading[key]) return
@@ -323,6 +398,11 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
             })
           },
         },
+        evict(sessionID: string, directory = sdk.directory) {
+          const [, setStore] = globalSync.child(directory)
+          seenFor(directory).delete(sessionID)
+          evict(directory, setStore, [sessionID])
+        },
         fetch: async (count = 10) => {
           const directory = sdk.directory
           const client = sdk.client

packages/app/src/context/terminal.test.ts

@@ -2,6 +2,7 @@ import { beforeAll, describe, expect, mock, test } from "bun:test"
 
 let getWorkspaceTerminalCacheKey: (dir: string) => string
 let getLegacyTerminalStorageKeys: (dir: string, legacySessionID?: string) => string[]
+let migrateTerminalState: (value: unknown) => unknown
 
 beforeAll(async () => {
   mock.module("@solidjs/router", () => ({
@@ -17,6 +18,7 @@ beforeAll(async () => {
   const mod = await import("./terminal")
   getWorkspaceTerminalCacheKey = mod.getWorkspaceTerminalCacheKey
   getLegacyTerminalStorageKeys = mod.getLegacyTerminalStorageKeys
+  migrateTerminalState = mod.migrateTerminalState
 })
 
 describe("getWorkspaceTerminalCacheKey", () => {
@@ -37,3 +39,44 @@ describe("getLegacyTerminalStorageKeys", () => {
     ])
   })
 })
+
+describe("migrateTerminalState", () => {
+  test("drops invalid terminals and restores a valid active terminal", () => {
+    expect(
+      migrateTerminalState({
+        active: "missing",
+        all: [
+          null,
+          { id: "one", title: "Terminal 2" },
+          { id: "one", title: "duplicate", titleNumber: 9 },
+          { id: "two", title: "logs", titleNumber: 4, rows: 24, cols: 80 },
+          { title: "no-id" },
+        ],
+      }),
+    ).toEqual({
+      active: "one",
+      all: [
+        { id: "one", title: "Terminal 2", titleNumber: 2 },
+        { id: "two", title: "logs", titleNumber: 4, rows: 24, cols: 80 },
+      ],
+    })
+  })
+
+  test("keeps a valid active id", () => {
+    expect(
+      migrateTerminalState({
+        active: "two",
+        all: [
+          { id: "one", title: "Terminal 1" },
+          { id: "two", title: "shell", titleNumber: 7 },
+        ],
+      }),
+    ).toEqual({
+      active: "two",
+      all: [
+        { id: "one", title: "Terminal 1", titleNumber: 1 },
+        { id: "two", title: "shell", titleNumber: 7 },
+      ],
+    })
+  })
+})

packages/app/src/context/terminal.tsx

@@ -1,6 +1,6 @@
 import { createStore, produce } from "solid-js/store"
 import { createSimpleContext } from "@opencode-ai/ui/context"
-import { batch, createEffect, createMemo, createRoot, onCleanup } from "solid-js"
+import { batch, createEffect, createMemo, createRoot, on, onCleanup } from "solid-js"
 import { useParams } from "@solidjs/router"
 import { useSDK } from "./sdk"
 import type { Platform } from "./platform"
@@ -20,6 +20,71 @@ export type LocalPTY = {
 const WORKSPACE_KEY = "__workspace__"
 const MAX_TERMINAL_SESSIONS = 20
 
+function record(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null && !Array.isArray(value)
+}
+
+function text(value: unknown) {
+  return typeof value === "string" ? value : undefined
+}
+
+function num(value: unknown) {
+  return typeof value === "number" && Number.isFinite(value) ? value : undefined
+}
+
+function numberFromTitle(title: string) {
+  const match = title.match(/^Terminal (\d+)$/)
+  if (!match) return
+  const value = Number(match[1])
+  if (!Number.isFinite(value) || value <= 0) return
+  return value
+}
+
+function pty(value: unknown): LocalPTY | undefined {
+  if (!record(value)) return
+
+  const id = text(value.id)
+  if (!id) return
+
+  const title = text(value.title) ?? ""
+  const number = num(value.titleNumber)
+  const rows = num(value.rows)
+  const cols = num(value.cols)
+  const buffer = text(value.buffer)
+  const scrollY = num(value.scrollY)
+  const cursor = num(value.cursor)
+
+  return {
+    id,
+    title,
+    titleNumber: number && number > 0 ? number : (numberFromTitle(title) ?? 0),
+    ...(rows !== undefined ? { rows } : {}),
+    ...(cols !== undefined ? { cols } : {}),
+    ...(buffer !== undefined ? { buffer } : {}),
+    ...(scrollY !== undefined ? { scrollY } : {}),
+    ...(cursor !== undefined ? { cursor } : {}),
+  }
+}
+
+export function migrateTerminalState(value: unknown) {
+  if (!record(value)) return value
+
+  const seen = new Set<string>()
+  const all = (Array.isArray(value.all) ? value.all : []).flatMap((item) => {
+    const next = pty(item)
+    if (!next || seen.has(next.id)) return []
+    seen.add(next.id)
+    return [next]
+  })
+
+  const active = text(value.active)
+
+  return {
+    active: active && seen.has(active) ? active : all[0]?.id,
+    all,
+  }
+}
+
 export function getWorkspaceTerminalCacheKey(dir: string) {
   return `${dir}:${WORKSPACE_KEY}`
 }
@@ -38,6 +103,16 @@ type TerminalCacheEntry = {
 
 const caches = new Set<Map<string, TerminalCacheEntry>>()
 
+const trimTerminal = (pty: LocalPTY) => {
+  if (!pty.buffer && pty.cursor === undefined && pty.scrollY === undefined) return pty
+  return {
+    ...pty,
+    buffer: undefined,
+    cursor: undefined,
+    scrollY: undefined,
+  }
+}
+
 export function clearWorkspaceTerminals(dir: string, sessionIDs?: string[], platform?: Platform) {
   const key = getWorkspaceTerminalCacheKey(dir)
   for (const cache of caches) {
@@ -61,16 +136,11 @@ export function clearWorkspaceTerminals(dir: string, sessionIDs?: string[], plat
 function createWorkspaceTerminalSession(sdk: ReturnType<typeof useSDK>, dir: string, legacySessionID?: string) {
   const legacy = getLegacyTerminalStorageKeys(dir, legacySessionID)
 
-  const numberFromTitle = (title: string) => {
-    const match = title.match(/^Terminal (\d+)$/)
-    if (!match) return
-    const value = Number(match[1])
-    if (!Number.isFinite(value) || value <= 0) return
-    return value
-  }
-
   const [store, setStore, _, ready] = persisted(
-    Persist.workspace(dir, "terminal", legacy),
+    {
+      ...Persist.workspace(dir, "terminal", legacy),
+      migrate: migrateTerminalState,
+    },
     createStore<{
       active?: string
       all: LocalPTY[]
@@ -118,26 +188,6 @@ function createWorkspaceTerminalSession(sdk: ReturnType<typeof useSDK>, dir: str
   })
   onCleanup(unsub)
 
-  const meta = { migrated: false }
-
-  createEffect(() => {
-    if (!ready()) return
-    if (meta.migrated) return
-    meta.migrated = true
-
-    setStore("all", (all) => {
-      const next = all.map((pty) => {
-        const direct = Number.isFinite(pty.titleNumber) && pty.titleNumber > 0 ? pty.titleNumber : undefined
-        if (direct !== undefined) return pty
-        const parsed = numberFromTitle(pty.title)
-        if (parsed === undefined) return pty
-        return { ...pty, titleNumber: parsed }
-      })
-      if (next.every((pty, index) => pty === all[index])) return all
-      return next
-    })
-  })
-
   return {
     ready,
     all: createMemo(() => store.all),
@@ -188,6 +238,18 @@ function createWorkspaceTerminalSession(sdk: ReturnType<typeof useSDK>, dir: str
           console.error("Failed to update terminal", error)
         })
     },
+    trim(id: string) {
+      const index = store.all.findIndex((x) => x.id === id)
+      if (index === -1) return
+      setStore("all", index, (pty) => trimTerminal(pty))
+    },
+    trimAll() {
+      setStore("all", (all) => {
+        const next = all.map(trimTerminal)
+        if (next.every((pty, index) => pty === all[index])) return all
+        return next
+      })
+    },
     async clone(id: string) {
       const index = store.all.findIndex((x) => x.id === id)
       const pty = store.all[index]
@@ -322,12 +384,27 @@ export const { use: useTerminal, provider: TerminalProvider } = createSimpleCont
 
     const workspace = createMemo(() => loadWorkspace(params.dir!, params.id))
 
+    createEffect(
+      on(
+        () => ({ dir: params.dir, id: params.id }),
+        (next, prev) => {
+          if (!prev?.dir) return
+          if (next.dir === prev.dir && next.id === prev.id) return
+          if (next.dir === prev.dir && next.id) return
+          loadWorkspace(prev.dir, prev.id).trimAll()
+        },
+        { defer: true },
+      ),
+    )
+
     return {
       ready: () => workspace().ready(),
       all: () => workspace().all(),
       active: () => workspace().active(),
       new: () => workspace().new(),
       update: (pty: Partial<LocalPTY> & { id: string }) => workspace().update(pty),
+      trim: (id: string) => workspace().trim(id),
+      trimAll: () => workspace().trimAll(),
       clone: (id: string) => workspace().clone(id),
       open: (id: string) => workspace().open(id),
       close: (id: string) => workspace().close(id),

packages/app/src/i18n/ar.ts

@@ -456,6 +456,7 @@ export const dict = {
   "session.todo.title": "المهام",
   "session.todo.collapse": "طي",
   "session.todo.expand": "توسيع",
+  "session.new.title": "ابنِ أي شيء",
   "session.new.worktree.main": "الفرع الرئيسي",
   "session.new.worktree.mainWithBranch": "الفرع الرئيسي ({{branch}})",
   "session.new.worktree.create": "إنشاء شجرة عمل جديدة",
@@ -541,6 +542,12 @@ export const dict = {
   "settings.general.row.theme.description": "تخصيص سمة OpenCode.",
   "settings.general.row.font.title": "الخط",
   "settings.general.row.font.description": "تخصيص الخط الأحادي المستخدم في كتل التعليمات البرمجية",
+  "settings.general.row.shellToolPartsExpanded.title": "توسيع أجزاء أداة shell",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "إظهار أجزاء أداة shell موسعة بشكل افتراضي في الشريط الزمني",
+  "settings.general.row.editToolPartsExpanded.title": "توسيع أجزاء أداة edit",
+  "settings.general.row.editToolPartsExpanded.description":
+    "إظهار أجزاء أدوات edit و write و patch موسعة بشكل افتراضي في الشريط الزمني",
   "settings.general.row.wayland.title": "استخدام Wayland الأصلي",
   "settings.general.row.wayland.description": "تعطيل التراجع إلى X11 على Wayland. يتطلب إعادة التشغيل.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/br.ts

@@ -459,6 +459,7 @@ export const dict = {
   "session.todo.title": "Tarefas",
   "session.todo.collapse": "Recolher",
   "session.todo.expand": "Expandir",
+  "session.new.title": "Crie qualquer coisa",
   "session.new.worktree.main": "Branch principal",
   "session.new.worktree.mainWithBranch": "Branch principal ({{branch}})",
   "session.new.worktree.create": "Criar novo worktree",
@@ -547,6 +548,12 @@ export const dict = {
   "settings.general.row.theme.description": "Personalize como o OpenCode é tematizado.",
   "settings.general.row.font.title": "Fonte",
   "settings.general.row.font.description": "Personalize a fonte monoespaçada usada em blocos de código",
+  "settings.general.row.shellToolPartsExpanded.title": "Expandir partes da ferramenta shell",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "Mostrar partes da ferramenta shell expandidas por padrão na linha do tempo",
+  "settings.general.row.editToolPartsExpanded.title": "Expandir partes da ferramenta de edição",
+  "settings.general.row.editToolPartsExpanded.description":
+    "Mostrar partes das ferramentas de edição, escrita e patch expandidas por padrão na linha do tempo",
   "settings.general.row.wayland.title": "Usar Wayland nativo",
   "settings.general.row.wayland.description": "Desabilitar fallback X11 no Wayland. Requer reinicialização.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/bs.ts

@@ -515,6 +515,7 @@ export const dict = {
   "session.todo.collapse": "Sažmi",
   "session.todo.expand": "Proširi",
 
+  "session.new.title": "Napravi bilo šta",
   "session.new.worktree.main": "Glavna grana",
   "session.new.worktree.mainWithBranch": "Glavna grana ({{branch}})",
   "session.new.worktree.create": "Kreiraj novi worktree",
@@ -613,6 +614,12 @@ export const dict = {
   "settings.general.row.font.title": "Font",
   "settings.general.row.font.description": "Prilagodi monospace font koji se koristi u blokovima koda",
 
+  "settings.general.row.shellToolPartsExpanded.title": "Proširi dijelove shell alata",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "Prikaži dijelove shell alata podrazumijevano proširene na vremenskoj traci",
+  "settings.general.row.editToolPartsExpanded.title": "Proširi dijelove alata za uređivanje",
+  "settings.general.row.editToolPartsExpanded.description":
+    "Prikaži dijelove alata za uređivanje, pisanje i patch podrazumijevano proširene na vremenskoj traci",
   "settings.general.row.wayland.title": "Koristi nativni Wayland",
   "settings.general.row.wayland.description": "Onemogući X11 fallback na Waylandu. Zahtijeva restart.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/da.ts

@@ -510,6 +510,7 @@ export const dict = {
   "session.todo.collapse": "Skjul",
   "session.todo.expand": "Udvid",
 
+  "session.new.title": "Byg hvad som helst",
   "session.new.worktree.main": "Hovedgren",
   "session.new.worktree.mainWithBranch": "Hovedgren ({{branch}})",
   "session.new.worktree.create": "Opret nyt worktree",
@@ -608,6 +609,11 @@ export const dict = {
   "settings.general.row.font.title": "Skrifttype",
   "settings.general.row.font.description": "Tilpas mono-skrifttypen brugt i kodeblokke",
 
+  "settings.general.row.shellToolPartsExpanded.title": "Udvid shell-værktøjsdele",
+  "settings.general.row.shellToolPartsExpanded.description": "Vis shell-værktøjsdele udvidet som standard i tidslinjen",
+  "settings.general.row.editToolPartsExpanded.title": "Udvid edit-værktøjsdele",
+  "settings.general.row.editToolPartsExpanded.description":
+    "Vis edit-, write- og patch-værktøjsdele udvidet som standard i tidslinjen",
   "settings.general.row.wayland.title": "Brug native Wayland",
   "settings.general.row.wayland.description": "Deaktiver X11-fallback på Wayland. Kræver genstart.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/de.ts

@@ -467,6 +467,7 @@ export const dict = {
   "session.todo.title": "Aufgaben",
   "session.todo.collapse": "Einklappen",
   "session.todo.expand": "Ausklappen",
+  "session.new.title": "Baue, was du willst",
   "session.new.worktree.main": "Haupt-Branch",
   "session.new.worktree.mainWithBranch": "Haupt-Branch ({{branch}})",
   "session.new.worktree.create": "Neuen Worktree erstellen",
@@ -556,6 +557,12 @@ export const dict = {
   "settings.general.row.theme.description": "Das Thema von OpenCode anpassen.",
   "settings.general.row.font.title": "Schriftart",
   "settings.general.row.font.description": "Die in Codeblöcken verwendete Monospace-Schriftart anpassen",
+  "settings.general.row.shellToolPartsExpanded.title": "Shell-Tool-Abschnitte ausklappen",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "Shell-Tool-Abschnitte standardmäßig in der Timeline ausgeklappt anzeigen",
+  "settings.general.row.editToolPartsExpanded.title": "Edit-Tool-Abschnitte ausklappen",
+  "settings.general.row.editToolPartsExpanded.description":
+    "Edit-, Write- und Patch-Tool-Abschnitte standardmäßig in der Timeline ausgeklappt anzeigen",
   "settings.general.row.wayland.title": "Natives Wayland verwenden",
   "settings.general.row.wayland.description": "X11-Fallback unter Wayland deaktivieren. Erfordert Neustart.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/en.ts

@@ -511,11 +511,13 @@ export const dict = {
   "session.review.change.other": "Changes",
   "session.review.loadingChanges": "Loading changes...",
   "session.review.empty": "No changes in this session yet",
-  "session.review.noVcs": "No git VCS detected, so session changes will not be detected",
+  "session.review.noVcs": "No Git Version Control System detected, changes not displayed",
+  "session.review.noSnapshot": "Snapshot tracking is disabled in config, so session changes are unavailable",
   "session.review.noChanges": "No changes",
 
   "session.files.selectToOpen": "Select a file to open",
   "session.files.all": "All files",
+  "session.files.empty": "No files",
   "session.files.binaryContent": "Binary file (content cannot be displayed)",
 
   "session.messages.renderEarlier": "Render earlier messages",
@@ -529,6 +531,7 @@ export const dict = {
   "session.todo.collapse": "Collapse",
   "session.todo.expand": "Expand",
 
+  "session.new.title": "Build anything",
   "session.new.worktree.main": "Main branch",
   "session.new.worktree.mainWithBranch": "Main branch ({{branch}})",
   "session.new.worktree.create": "Create new worktree",
@@ -636,6 +639,13 @@ export const dict = {
   "settings.general.row.font.description": "Customise the mono font used in code blocks",
   "settings.general.row.reasoningSummaries.title": "Show reasoning summaries",
   "settings.general.row.reasoningSummaries.description": "Display model reasoning summaries in the timeline",
+  "settings.general.row.shellToolPartsExpanded.title": "Expand shell tool parts",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "Show shell tool parts expanded by default in the timeline",
+  "settings.general.row.editToolPartsExpanded.title": "Expand edit tool parts",
+  "settings.general.row.editToolPartsExpanded.description":
+    "Show edit, write, and patch tool parts expanded by default in the timeline",
+
   "settings.general.row.wayland.title": "Use native Wayland",
   "settings.general.row.wayland.description": "Disable X11 fallback on Wayland. Requires restart.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/es.ts

@@ -516,6 +516,7 @@ export const dict = {
   "session.todo.collapse": "Contraer",
   "session.todo.expand": "Expandir",
 
+  "session.new.title": "Construye lo que quieras",
   "session.new.worktree.main": "Rama principal",
   "session.new.worktree.mainWithBranch": "Rama principal ({{branch}})",
   "session.new.worktree.create": "Crear nuevo árbol de trabajo",
@@ -616,6 +617,12 @@ export const dict = {
   "settings.general.row.font.title": "Fuente",
   "settings.general.row.font.description": "Personaliza la fuente monoespaciada usada en bloques de código",
 
+  "settings.general.row.shellToolPartsExpanded.title": "Expandir partes de la herramienta shell",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "Mostrar las partes de la herramienta shell expandidas por defecto en la línea de tiempo",
+  "settings.general.row.editToolPartsExpanded.title": "Expandir partes de la herramienta de edición",
+  "settings.general.row.editToolPartsExpanded.description":
+    "Mostrar las partes de las herramientas de edición, escritura y parcheado expandidas por defecto en la línea de tiempo",
   "settings.general.row.wayland.title": "Usar Wayland nativo",
   "settings.general.row.wayland.description": "Deshabilitar fallback a X11 en Wayland. Requiere reinicio.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/fr.ts

@@ -463,6 +463,7 @@ export const dict = {
   "session.todo.title": "Tâches",
   "session.todo.collapse": "Réduire",
   "session.todo.expand": "Développer",
+  "session.new.title": "Créez ce que vous voulez",
   "session.new.worktree.main": "Branche principale",
   "session.new.worktree.mainWithBranch": "Branche principale ({{branch}})",
   "session.new.worktree.create": "Créer un nouvel arbre de travail",
@@ -553,6 +554,12 @@ export const dict = {
   "settings.general.row.theme.description": "Personnaliser le thème d'OpenCode.",
   "settings.general.row.font.title": "Police",
   "settings.general.row.font.description": "Personnaliser la police mono utilisée dans les blocs de code",
+  "settings.general.row.shellToolPartsExpanded.title": "Développer les parties de l'outil shell",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "Afficher les parties de l'outil shell développées par défaut dans la chronologie",
+  "settings.general.row.editToolPartsExpanded.title": "Développer les parties de l'outil edit",
+  "settings.general.row.editToolPartsExpanded.description":
+    "Afficher les parties des outils edit, write et patch développées par défaut dans la chronologie",
   "settings.general.row.wayland.title": "Utiliser Wayland natif",
   "settings.general.row.wayland.description": "Désactiver le repli X11 sur Wayland. Nécessite un redémarrage.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/ja.ts

@@ -457,6 +457,7 @@ export const dict = {
   "session.todo.title": "ToDo",
   "session.todo.collapse": "折りたたむ",
   "session.todo.expand": "展開",
+  "session.new.title": "何でも作る",
   "session.new.worktree.main": "メインブランチ",
   "session.new.worktree.mainWithBranch": "メインブランチ ({{branch}})",
   "session.new.worktree.create": "新しいワークツリーを作成",
@@ -545,6 +546,12 @@ export const dict = {
   "settings.general.row.theme.description": "OpenCodeのテーマをカスタマイズします。",
   "settings.general.row.font.title": "フォント",
   "settings.general.row.font.description": "コードブロックで使用する等幅フォントをカスタマイズします",
+  "settings.general.row.shellToolPartsExpanded.title": "shell ツールパーツを展開",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "タイムラインで shell ツールパーツをデフォルトで展開して表示します",
+  "settings.general.row.editToolPartsExpanded.title": "edit ツールパーツを展開",
+  "settings.general.row.editToolPartsExpanded.description":
+    "タイムラインで edit、write、patch ツールパーツをデフォルトで展開して表示します",
   "settings.general.row.wayland.title": "ネイティブWaylandを使用",
   "settings.general.row.wayland.description": "WaylandでのX11フォールバックを無効にします。再起動が必要です。",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/ko.ts

@@ -459,6 +459,7 @@ export const dict = {
   "session.todo.title": "할 일",
   "session.todo.collapse": "접기",
   "session.todo.expand": "펼치기",
+  "session.new.title": "무엇이든 만들기",
   "session.new.worktree.main": "메인 브랜치",
   "session.new.worktree.mainWithBranch": "메인 브랜치 ({{branch}})",
   "session.new.worktree.create": "새 작업 트리 생성",
@@ -546,6 +547,12 @@ export const dict = {
   "settings.general.row.theme.description": "OpenCode 테마 사용자 지정",
   "settings.general.row.font.title": "글꼴",
   "settings.general.row.font.description": "코드 블록에 사용되는 고정폭 글꼴 사용자 지정",
+  "settings.general.row.shellToolPartsExpanded.title": "shell 도구 파트 펼치기",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "타임라인에서 기본적으로 shell 도구 파트를 펼친 상태로 표시합니다",
+  "settings.general.row.editToolPartsExpanded.title": "edit 도구 파트 펼치기",
+  "settings.general.row.editToolPartsExpanded.description":
+    "타임라인에서 기본적으로 edit, write, patch 도구 파트를 펼친 상태로 표시합니다",
   "settings.general.row.wayland.title": "네이티브 Wayland 사용",
   "settings.general.row.wayland.description": "Wayland에서 X11 폴백을 비활성화합니다. 다시 시작해야 합니다.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/no.ts

@@ -516,6 +516,7 @@ export const dict = {
   "session.todo.collapse": "Skjul",
   "session.todo.expand": "Utvid",
 
+  "session.new.title": "Bygg hva som helst",
   "session.new.worktree.main": "Hovedgren",
   "session.new.worktree.mainWithBranch": "Hovedgren ({{branch}})",
   "session.new.worktree.create": "Opprett nytt worktree",
@@ -616,6 +617,11 @@ export const dict = {
   "settings.general.row.font.title": "Skrift",
   "settings.general.row.font.description": "Tilpass mono-skriften som brukes i kodeblokker",
 
+  "settings.general.row.shellToolPartsExpanded.title": "Utvid shell-verktøydeler",
+  "settings.general.row.shellToolPartsExpanded.description": "Vis shell-verktøydeler utvidet som standard i tidslinjen",
+  "settings.general.row.editToolPartsExpanded.title": "Utvid edit-verktøydeler",
+  "settings.general.row.editToolPartsExpanded.description":
+    "Vis edit-, write- og patch-verktøydeler utvidet som standard i tidslinjen",
   "settings.general.row.wayland.title": "Bruk innebygd Wayland",
   "settings.general.row.wayland.description": "Deaktiver X11-fallback på Wayland. Krever omstart.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/pl.ts

@@ -458,6 +458,7 @@ export const dict = {
   "session.todo.title": "Zadania",
   "session.todo.collapse": "Zwiń",
   "session.todo.expand": "Rozwiń",
+  "session.new.title": "Zbuduj cokolwiek",
   "session.new.worktree.main": "Główna gałąź",
   "session.new.worktree.mainWithBranch": "Główna gałąź ({{branch}})",
   "session.new.worktree.create": "Utwórz nowe drzewo robocze",
@@ -546,6 +547,12 @@ export const dict = {
   "settings.general.row.theme.description": "Dostosuj motyw OpenCode.",
   "settings.general.row.font.title": "Czcionka",
   "settings.general.row.font.description": "Dostosuj czcionkę mono używaną w blokach kodu",
+  "settings.general.row.shellToolPartsExpanded.title": "Rozwijaj elementy narzędzia shell",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "Domyślnie pokazuj rozwinięte elementy narzędzia shell na osi czasu",
+  "settings.general.row.editToolPartsExpanded.title": "Rozwijaj elementy narzędzia edit",
+  "settings.general.row.editToolPartsExpanded.description":
+    "Domyślnie pokazuj rozwinięte elementy narzędzi edit, write i patch na osi czasu",
   "settings.general.row.wayland.title": "Użyj natywnego Wayland",
   "settings.general.row.wayland.description": "Wyłącz fallback X11 na Wayland. Wymaga restartu.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/ru.ts

@@ -514,6 +514,7 @@ export const dict = {
   "session.todo.collapse": "Свернуть",
   "session.todo.expand": "Развернуть",
 
+  "session.new.title": "Создавайте что угодно",
   "session.new.worktree.main": "Основная ветка",
   "session.new.worktree.mainWithBranch": "Основная ветка ({{branch}})",
   "session.new.worktree.create": "Создать новый worktree",
@@ -614,6 +615,12 @@ export const dict = {
   "settings.general.row.font.title": "Шрифт",
   "settings.general.row.font.description": "Настройте моноширинный шрифт для блоков кода",
 
+  "settings.general.row.shellToolPartsExpanded.title": "Разворачивать элементы инструмента shell",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "Показывать элементы инструмента shell в ленте развернутыми по умолчанию",
+  "settings.general.row.editToolPartsExpanded.title": "Разворачивать элементы инструмента edit",
+  "settings.general.row.editToolPartsExpanded.description":
+    "Показывать элементы инструментов edit, write и patch в ленте развернутыми по умолчанию",
   "settings.general.row.wayland.title": "Использовать нативный Wayland",
   "settings.general.row.wayland.description": "Отключить X11 fallback на Wayland. Требуется перезапуск.",
   "settings.general.row.wayland.tooltip":

packages/app/src/i18n/th.ts

@@ -511,6 +511,7 @@ export const dict = {
   "session.todo.collapse": "ย่อ",
   "session.todo.expand": "ขยาย",
 
+  "session.new.title": "สร้างอะไรก็ได้",
   "session.new.worktree.main": "สาขาหลัก",
   "session.new.worktree.mainWithBranch": "สาขาหลัก ({{branch}})",
   "session.new.worktree.create": "สร้าง worktree ใหม่",
@@ -608,6 +609,11 @@ export const dict = {
   "settings.general.row.font.title": "ฟอนต์",
   "settings.general.row.font.description": "ปรับแต่งฟอนต์โมโนที่ใช้ในบล็อกโค้ด",
 
+  "settings.general.row.shellToolPartsExpanded.title": "ขยายส่วนเครื่องมือ shell",
+  "settings.general.row.shellToolPartsExpanded.description": "แสดงส่วนเครื่องมือ shell แบบขยายตามค่าเริ่มต้นในไทม์ไลน์",
+  "settings.general.row.editToolPartsExpanded.title": "ขยายส่วนเครื่องมือ edit",
+  "settings.general.row.editToolPartsExpanded.description":
+    "แสดงส่วนเครื่องมือ edit, write และ patch แบบขยายตามค่าเริ่มต้นในไทม์ไลน์",
   "settings.general.row.wayland.title": "ใช้ Wayland แบบเนทีฟ",
   "settings.general.row.wayland.description": "ปิดใช้งาน X11 fallback บน Wayland ต้องรีสตาร์ท",
   "settings.general.row.wayland.tooltip": "บน Linux ที่มีจอภาพรีเฟรชเรตแบบผสม Wayland แบบเนทีฟอาจเสถียรกว่า",

packages/app/src/i18n/tr.ts

@@ -523,6 +523,7 @@ export const dict = {
   "session.todo.collapse": "Daralt",
   "session.todo.expand": "Genişlet",
 
+  "session.new.title": "İstediğini yap",
   "session.new.worktree.main": "Ana dal",
   "session.new.worktree.mainWithBranch": "Ana dal ({{branch}})",
   "session.new.worktree.create": "Yeni çalışma ağacı oluştur",
@@ -623,6 +624,13 @@ export const dict = {
   "settings.general.row.font.description": "Kod bloklarında kullanılan monospace yazı tipini özelleştirin",
   "settings.general.row.reasoningSummaries.title": "Akıl yürütme özetlerini göster",
   "settings.general.row.reasoningSummaries.description": "Zaman çizelgesinde model akıl yürütme özetlerini görüntüle",
+  "settings.general.row.shellToolPartsExpanded.title": "Kabuk araç bileşenlerini genişlet",
+  "settings.general.row.shellToolPartsExpanded.description":
+    "Zaman çizelgesinde kabuk araç bileşenlerini varsayılan olarak genişletilmiş göster",
+  "settings.general.row.editToolPartsExpanded.title": "Düzenleme araç bileşenlerini genişlet",
+  "settings.general.row.editToolPartsExpanded.description":
+    "Zaman çizelgesinde düzenleme, yazma ve yama araç bileşenlerini varsayılan olarak genişletilmiş göster",
+
   "settings.general.row.wayland.title": "Yerel Wayland kullan",
   "settings.general.row.wayland.description":
     "Wayland'da X11 geri dönüşünü devre dışı bırak. Yeniden başlatma gerektirir.",

packages/app/src/i18n/zh.ts

@@ -510,6 +510,7 @@ export const dict = {
   "session.todo.title": "待办事项",
   "session.todo.collapse": "折叠",
   "session.todo.expand": "展开",
+  "session.new.title": "构建任何东西",
   "session.new.worktree.main": "主分支",
   "session.new.worktree.mainWithBranch": "主分支（{{branch}}）",
   "session.new.worktree.create": "创建新的 worktree",
@@ -607,6 +608,10 @@ export const dict = {
   "settings.general.row.theme.description": "自定义 OpenCode 的主题。",
   "settings.general.row.font.title": "字体",
   "settings.general.row.font.description": "自定义代码块使用的等宽字体",
+  "settings.general.row.shellToolPartsExpanded.title": "展开 shell 工具部分",
+  "settings.general.row.shellToolPartsExpanded.description": "默认在时间线中展开 shell 工具部分",
+  "settings.general.row.editToolPartsExpanded.title": "展开编辑工具部分",
+  "settings.general.row.editToolPartsExpanded.description": "默认在时间线中展开 edit、write 和 patch 工具部分",
   "settings.general.row.wayland.title": "使用原生 Wayland",
   "settings.general.row.wayland.description": "在 Wayland 上禁用 X11 回退。需要重启。",
   "settings.general.row.wayland.tooltip": "在混合刷新率显示器的 Linux 系统上，原生 Wayland 可能更稳定。",

packages/app/src/i18n/zht.ts

@@ -507,6 +507,7 @@ export const dict = {
   "session.todo.collapse": "折疊",
   "session.todo.expand": "展開",
 
+  "session.new.title": "建構任何東西",
   "session.new.worktree.main": "主分支",
   "session.new.worktree.mainWithBranch": "主分支 ({{branch}})",
   "session.new.worktree.create": "建立新的 worktree",
@@ -603,6 +604,10 @@ export const dict = {
   "settings.general.row.font.title": "字型",
   "settings.general.row.font.description": "自訂程式碼區塊使用的等寬字型",
 
+  "settings.general.row.shellToolPartsExpanded.title": "展開 shell 工具區塊",
+  "settings.general.row.shellToolPartsExpanded.description": "在時間軸中預設展開 shell 工具區塊",
+  "settings.general.row.editToolPartsExpanded.title": "展開 edit 工具區塊",
+  "settings.general.row.editToolPartsExpanded.description": "在時間軸中預設展開 edit、write 和 patch 工具區塊",
   "settings.general.row.wayland.title": "使用原生 Wayland",
   "settings.general.row.wayland.description": "在 Wayland 上停用 X11 後備模式。需要重新啟動。",
   "settings.general.row.wayland.tooltip": "在混合更新率螢幕的 Linux 系統上，原生 Wayland 可能更穩定。",

packages/app/src/index.css

@@ -1 +1,29 @@
 @import "@opencode-ai/ui/styles/tailwind";
+
+@layer components {
+  [data-component="getting-started"] {
+    container-type: inline-size;
+    container-name: getting-started;
+  }
+
+  [data-component="getting-started-actions"] {
+    display: flex;
+    flex-direction: column;
+    gap: 0.75rem; /* gap-3 */
+  }
+
+  [data-component="getting-started-actions"] > [data-component="button"] {
+    width: 100%;
+  }
+
+  @container getting-started (min-width: 17rem) {
+    [data-component="getting-started-actions"] {
+      flex-direction: row;
+      align-items: center;
+    }
+
+    [data-component="getting-started-actions"] > [data-component="button"] {
+      width: auto;
+    }
+  }
+}

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

@@ -1,26 +1,27 @@
-import { createEffect, createMemo, Show, type ParentProps } from "solid-js"
+import { batch, createEffect, createMemo, Show, type ParentProps } from "solid-js"
 import { createStore } from "solid-js/store"
-import { useNavigate, useParams } from "@solidjs/router"
+import { useLocation, useNavigate, useParams } from "@solidjs/router"
 import { SDKProvider } from "@/context/sdk"
 import { SyncProvider, useSync } from "@/context/sync"
 import { LocalProvider } from "@/context/local"
+import { useGlobalSDK } from "@/context/global-sdk"
 
 import { DataProvider } from "@opencode-ai/ui/context"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { decode64 } from "@/utils/base64"
 import { showToast } from "@opencode-ai/ui/toast"
 import { useLanguage } from "@/context/language"
-
 function DirectoryDataProvider(props: ParentProps<{ directory: string }>) {
-  const params = useParams()
   const navigate = useNavigate()
   const sync = useSync()
+  const slug = createMemo(() => base64Encode(props.directory))
 
   return (
     <DataProvider
       data={sync.data}
       directory={props.directory}
-      onNavigateToSession={(sessionID: string) => navigate(`/${params.dir}/session/${sessionID}`)}
-      onSessionHref={(sessionID: string) => `/${params.dir}/session/${sessionID}`}
+      onNavigateToSession={(sessionID: string) => navigate(`/${slug()}/session/${sessionID}`)}
+      onSessionHref={(sessionID: string) => `/${slug()}/session/${sessionID}`}
     >
       <LocalProvider>{props.children}</LocalProvider>
     </DataProvider>
@@ -30,31 +31,63 @@ function DirectoryDataProvider(props: ParentProps<{ directory: string }>) {
 export default function Layout(props: ParentProps) {
   const params = useParams()
   const navigate = useNavigate()
+  const location = useLocation()
   const language = useLanguage()
-  const [store, setStore] = createStore({ invalid: "" })
-  const directory = createMemo(() => {
-    return decode64(params.dir) ?? ""
-  })
+  const globalSDK = useGlobalSDK()
+  const directory = createMemo(() => decode64(params.dir) ?? "")
+  const [state, setState] = createStore({ invalid: "", resolved: "" })
 
   createEffect(() => {
     if (!params.dir) return
-    if (directory()) return
-    if (store.invalid === params.dir) return
-    setStore("invalid", params.dir)
-    showToast({
-      variant: "error",
-      title: language.t("common.requestFailed"),
-      description: language.t("directory.error.invalidUrl"),
-    })
-    navigate("/", { replace: true })
+    const raw = directory()
+    if (!raw) {
+      if (state.invalid === params.dir) return
+      setState("invalid", params.dir)
+      showToast({
+        variant: "error",
+        title: language.t("common.requestFailed"),
+        description: language.t("directory.error.invalidUrl"),
+      })
+      navigate("/", { replace: true })
+      return
+    }
+
+    const current = params.dir
+    globalSDK
+      .createClient({
+        directory: raw,
+        throwOnError: true,
+      })
+      .path.get()
+      .then((x) => {
+        if (params.dir !== current) return
+        const next = x.data?.directory ?? raw
+        batch(() => {
+          setState("invalid", "")
+          setState("resolved", next)
+        })
+        if (next === raw) return
+        const path = location.pathname.slice(current.length + 1)
+        navigate(`/${base64Encode(next)}${path}${location.search}${location.hash}`, { replace: true })
+      })
+      .catch(() => {
+        if (params.dir !== current) return
+        batch(() => {
+          setState("invalid", "")
+          setState("resolved", raw)
+        })
+      })
   })
+
   return (
-    <Show when={directory()}>
-      <SDKProvider directory={directory}>
-        <SyncProvider>
-          <DirectoryDataProvider directory={directory()}>{props.children}</DirectoryDataProvider>
-        </SyncProvider>
-      </SDKProvider>
+    <Show when={state.resolved}>
+      {(resolved) => (
+        <SDKProvider directory={resolved}>
+          <SyncProvider>
+            <DirectoryDataProvider directory={resolved()}>{props.children}</DirectoryDataProvider>
+          </SyncProvider>
+        </SDKProvider>
+      )}
     </Show>
   )
 }

packages/app/src/pages/layout.tsx

@@ -10,9 +10,8 @@ import {
   ParentProps,
   Show,
   untrack,
-  type JSX,
 } from "solid-js"
-import { A, useNavigate, useParams } from "@solidjs/router"
+import { useNavigate, useParams } from "@solidjs/router"
 import { useLayout, LocalProject } from "@/context/layout"
 import { useGlobalSync } from "@/context/global-sync"
 import { Persist, persisted } from "@/utils/persist"
@@ -20,9 +19,8 @@ import { base64Encode } from "@opencode-ai/util/encode"
 import { decode64 } from "@/utils/base64"
 import { ResizeHandle } from "@opencode-ai/ui/resize-handle"
 import { Button } from "@opencode-ai/ui/button"
-import { Icon } from "@opencode-ai/ui/icon"
 import { IconButton } from "@opencode-ai/ui/icon-button"
-import { Tooltip, TooltipKeybind } from "@opencode-ai/ui/tooltip"
+import { Tooltip } from "@opencode-ai/ui/tooltip"
 import { DropdownMenu } from "@opencode-ai/ui/dropdown-menu"
 import { Dialog } from "@opencode-ai/ui/dialog"
 import { getFilename } from "@opencode-ai/util/path"
@@ -36,6 +34,7 @@ import { useProviders } from "@/hooks/use-providers"
 import { showToast, Toast, toaster } from "@opencode-ai/ui/toast"
 import { useGlobalSDK } from "@/context/global-sdk"
 import { clearWorkspaceTerminals } from "@/context/terminal"
+import { dropSessionCaches, pickSessionCacheEvictions } from "@/context/global-sync/session-cache"
 import { useNotification } from "@/context/notification"
 import { usePermission } from "@/context/permission"
 import { Binary } from "@opencode-ai/util/binary"
@@ -55,11 +54,11 @@ import { useCommand, type CommandOption } from "@/context/command"
 import { ConstrainDragXAxis } from "@/utils/solid-dnd"
 import { DialogSelectDirectory } from "@/components/dialog-select-directory"
 import { DialogEditProject } from "@/components/dialog-edit-project"
+import { DebugBar } from "@/components/debug-bar"
 import { Titlebar } from "@/components/titlebar"
 import { useServer } from "@/context/server"
 import { useLanguage, type Locale } from "@/context/language"
 import {
-  childMapByParent,
   displayName,
   effectiveWorkspaceOrder,
   errorMessage,
@@ -96,6 +95,7 @@ export default function Layout(props: ParentProps) {
       workspaceName: {} as Record<string, string>,
       workspaceBranchName: {} as Record<string, Record<string, string>>,
       workspaceExpanded: {} as Record<string, boolean>,
+      gettingStartedDismissed: false,
     }),
   )
 
@@ -157,6 +157,8 @@ export default function Layout(props: ParentProps) {
   const isBusy = (directory: string) => !!state.busyWorkspaces[workspaceKey(directory)]
   const navLeave = { current: undefined as number | undefined }
   const [sortNow, setSortNow] = createSignal(Date.now())
+  const [sizing, setSizing] = createSignal(false)
+  let sizet: number | undefined
   let sortNowInterval: ReturnType<typeof setInterval> | undefined
   const sortNowTimeout = setTimeout(
     () => {
@@ -169,7 +171,7 @@ export default function Layout(props: ParentProps) {
   const aim = createAim({
     enabled: () => !layout.sidebar.opened(),
     active: () => state.hoverProject,
-    el: () => state.nav,
+    el: () => state.nav?.querySelector<HTMLElement>("[data-component='sidebar-rail']") ?? state.nav,
     onActivate: (directory) => {
       globalSync.child(directory)
       setState("hoverProject", directory)
@@ -181,9 +183,23 @@ export default function Layout(props: ParentProps) {
     if (navLeave.current !== undefined) clearTimeout(navLeave.current)
     clearTimeout(sortNowTimeout)
     if (sortNowInterval) clearInterval(sortNowInterval)
+    if (sizet !== undefined) clearTimeout(sizet)
+    if (peekt !== undefined) clearTimeout(peekt)
     aim.reset()
   })
 
+  onMount(() => {
+    const stop = () => setSizing(false)
+    window.addEventListener("pointerup", stop)
+    window.addEventListener("pointercancel", stop)
+    window.addEventListener("blur", stop)
+    onCleanup(() => {
+      window.removeEventListener("pointerup", stop)
+      window.removeEventListener("pointercancel", stop)
+      window.removeEventListener("blur", stop)
+    })
+  })
+
   const sidebarHovering = createMemo(() => !layout.sidebar.opened() && state.hoverProject !== undefined)
   const sidebarExpanded = createMemo(() => layout.sidebar.opened() || sidebarHovering())
   const setHoverProject = (value: string | undefined) => {
@@ -194,12 +210,54 @@ export default function Layout(props: ParentProps) {
   const clearHoverProjectSoon = () => queueMicrotask(() => setHoverProject(undefined))
   const setHoverSession = (id: string | undefined) => setState("hoverSession", id)
 
+  const disarm = () => {
+    if (navLeave.current === undefined) return
+    clearTimeout(navLeave.current)
+    navLeave.current = undefined
+  }
+
+  const arm = () => {
+    if (layout.sidebar.opened()) return
+    if (state.hoverProject === undefined) return
+    disarm()
+    navLeave.current = window.setTimeout(() => {
+      navLeave.current = undefined
+      setHoverProject(undefined)
+      setState("hoverSession", undefined)
+    }, 300)
+  }
+
+  const [peek, setPeek] = createSignal<LocalProject | undefined>(undefined)
+  const [peeked, setPeeked] = createSignal(false)
+  let peekt: number | undefined
+
   const hoverProjectData = createMemo(() => {
     const id = state.hoverProject
     if (!id) return
     return layout.projects.list().find((project) => project.worktree === id)
   })
 
+  createEffect(() => {
+    const p = hoverProjectData()
+    if (p) {
+      if (peekt !== undefined) {
+        clearTimeout(peekt)
+        peekt = undefined
+      }
+      setPeek(p)
+      setPeeked(true)
+      return
+    }
+
+    setPeeked(false)
+    if (peek() === undefined) return
+    if (peekt !== undefined) clearTimeout(peekt)
+    peekt = window.setTimeout(() => {
+      peekt = undefined
+      setPeek(undefined)
+    }, 180)
+  })
+
   createEffect(() => {
     if (!layout.sidebar.opened()) return
     setHoverProject(undefined)
@@ -367,6 +425,17 @@ export default function Layout(props: ParentProps) {
           return
         }
 
+        if (
+          e.details?.type === "question.replied" ||
+          e.details?.type === "question.rejected" ||
+          e.details?.type === "permission.replied"
+        ) {
+          const props = e.details.properties as { sessionID: string }
+          const sessionKey = `${e.name}:${props.sessionID}`
+          dismissSessionAlert(sessionKey)
+          return
+        }
+
         if (e.details?.type !== "permission.asked" && e.details?.type !== "question.asked") return
         const title =
           e.details.type === "permission.asked"
@@ -601,25 +670,24 @@ export default function Layout(props: ParentProps) {
   const prefetchQueues = new Map<string, PrefetchQueue>()
 
   const PREFETCH_MAX_SESSIONS_PER_DIR = 10
-  const prefetchedByDir = new Map<string, Map<string, true>>()
+  const prefetchedByDir = new Map<string, Set<string>>()
 
   const lruFor = (directory: string) => {
     const existing = prefetchedByDir.get(directory)
     if (existing) return existing
-    const created = new Map<string, true>()
+    const created = new Set<string>()
     prefetchedByDir.set(directory, created)
     return created
   }
 
   const markPrefetched = (directory: string, sessionID: string) => {
     const lru = lruFor(directory)
-    if (lru.has(sessionID)) lru.delete(sessionID)
-    lru.set(sessionID, true)
-    while (lru.size > PREFETCH_MAX_SESSIONS_PER_DIR) {
-      const oldest = lru.keys().next().value as string | undefined
-      if (!oldest) return
-      lru.delete(oldest)
-    }
+    return pickSessionCacheEvictions({
+      seen: lru,
+      keep: sessionID,
+      limit: PREFETCH_MAX_SESSIONS_PER_DIR,
+      preserve: directory === params.dir && params.id ? [params.id] : undefined,
+    })
   }
 
   createEffect(() => {
@@ -668,6 +736,7 @@ export default function Layout(props: ParentProps) {
     return retry(() => globalSDK.client.session.messages({ directory, sessionID, limit: prefetchChunk }))
       .then((messages) => {
         if (prefetchToken.value !== token) return
+        if (!lruFor(directory).has(sessionID)) return
 
         const items = (messages.data ?? []).filter((x) => !!x?.info?.id)
         const next = items.map((x) => x.info).filter((m): m is Message => !!m?.id)
@@ -731,7 +800,18 @@ export default function Layout(props: ParentProps) {
     const lru = lruFor(directory)
     const known = lru.has(session.id)
     if (!known && lru.size >= PREFETCH_MAX_SESSIONS_PER_DIR && priority !== "high") return
-    markPrefetched(directory, session.id)
+    const stale = markPrefetched(directory, session.id)
+    if (stale.length > 0) {
+      const [, setStore] = globalSync.child(directory, { bootstrap: false })
+      for (const id of stale) {
+        globalSync.todo.set(id, undefined)
+      }
+      setStore(
+        produce((draft) => {
+          dropSessionCaches(draft, stale)
+        }),
+      )
+    }
 
     if (priority === "high") q.pending.unshift(session.id)
     if (priority !== "high") q.pending.push(session.id)
@@ -1125,6 +1205,12 @@ export default function Layout(props: ParentProps) {
     }
     const openSession = async (target: { directory: string; id: string }) => {
       if (!canOpen(target.directory)) return false
+      const [data] = globalSync.child(target.directory, { bootstrap: false })
+      if (data.session.some((item) => item.id === target.id)) {
+        setStore("lastProjectSession", root, { directory: target.directory, id: target.id, at: Date.now() })
+        navigateWithSidebarReset(`/${base64Encode(target.directory)}/session/${target.id}`)
+        return true
+      }
       const resolved = await globalSDK.client.session
         .get({ sessionID: target.id })
         .then((x) => x.data)
@@ -1815,7 +1901,9 @@ export default function Layout(props: ParentProps) {
     setHoverSession,
   }
 
-  const SidebarPanel = (panelProps: { project: LocalProject | undefined; mobile?: boolean }) => {
+  const SidebarPanel = (panelProps: { project: LocalProject | undefined; mobile?: boolean; merged?: boolean }) => {
+    const merged = createMemo(() => panelProps.mobile || (panelProps.merged ?? layout.sidebar.opened()))
+    const hover = createMemo(() => !panelProps.mobile && panelProps.merged === false && !layout.sidebar.opened())
     const projectName = createMemo(() => {
       const project = panelProps.project
       if (!project) return ""
@@ -1841,12 +1929,19 @@ export default function Layout(props: ParentProps) {
     return (
       <div
         classList={{
-          "flex flex-col min-h-0 bg-background-stronger border border-b-0 border-border-weak-base rounded-tl-[12px]": true,
+          "flex flex-col min-h-0 min-w-0 box-border rounded-tl-[12px] px-2": true,
+          "border border-b-0 border-border-weak-base": !merged(),
+          "border-l border-t border-border-weaker-base": merged(),
+          "bg-background-base": merged() || hover(),
+          "bg-background-stronger": !merged() && !hover(),
           "flex-1 min-w-0": panelProps.mobile,
+          "max-w-full overflow-hidden": panelProps.mobile,
+        }}
+        style={{
+          width: panelProps.mobile ? undefined : `${Math.max(Math.max(layout.sidebar.width(), 244) - 64, 0)}px`,
         }}
-        style={{ width: panelProps.mobile ? undefined : `${Math.max(layout.sidebar.width() - 64, 0)}px` }}
       >
-        <Show when={panelProps.project} keyed>
+        <Show when={panelProps.project}>
           {(p) => (
             <>
               <div class="shrink-0 px-2 py-1">
@@ -1855,7 +1950,7 @@ export default function Layout(props: ParentProps) {
                     <InlineEditor
                       id={`project:${projectId()}`}
                       value={projectName}
-                      onSave={(next) => renameProject(p, next)}
+                      onSave={(next) => renameProject(p(), next)}
                       class="text-14-medium text-text-strong truncate"
                       displayClass="text-14-medium text-text-strong truncate"
                       stopPropagation
@@ -1864,7 +1959,7 @@ export default function Layout(props: ParentProps) {
                     <Tooltip
                       placement="bottom"
                       gutter={2}
-                      value={p.worktree}
+                      value={p().worktree}
                       class="shrink-0"
                       contentStyle={{
                         "max-width": "640px",
@@ -1872,7 +1967,7 @@ export default function Layout(props: ParentProps) {
                       }}
                     >
                       <span class="text-12-regular text-text-base truncate select-text">
-                        {p.worktree.replace(homedir(), "~")}
+                        {p().worktree.replace(homedir(), "~")}
                       </span>
                     </Tooltip>
                   </div>
@@ -1883,33 +1978,33 @@ export default function Layout(props: ParentProps) {
                       icon="dot-grid"
                       variant="ghost"
                       data-action="project-menu"
-                      data-project={base64Encode(p.worktree)}
+                      data-project={base64Encode(p().worktree)}
                       class="shrink-0 size-6 rounded-md data-[expanded]:bg-surface-base-active"
                       classList={{
                         "opacity-0 group-hover/project:opacity-100 data-[expanded]:opacity-100": !panelProps.mobile,
                       }}
                       aria-label={language.t("common.moreOptions")}
                     />
-                    <DropdownMenu.Portal mount={!panelProps.mobile ? state.nav : undefined}>
+                    <DropdownMenu.Portal>
                       <DropdownMenu.Content class="mt-1">
-                        <DropdownMenu.Item onSelect={() => showEditProjectDialog(p)}>
+                        <DropdownMenu.Item onSelect={() => showEditProjectDialog(p())}>
                           <DropdownMenu.ItemLabel>{language.t("common.edit")}</DropdownMenu.ItemLabel>
                         </DropdownMenu.Item>
                         <DropdownMenu.Item
                           data-action="project-workspaces-toggle"
-                          data-project={base64Encode(p.worktree)}
-                          disabled={p.vcs !== "git" && !layout.sidebar.workspaces(p.worktree)()}
-                          onSelect={() => toggleProjectWorkspaces(p)}
+                          data-project={base64Encode(p().worktree)}
+                          disabled={p().vcs !== "git" && !layout.sidebar.workspaces(p().worktree)()}
+                          onSelect={() => toggleProjectWorkspaces(p())}
                         >
                           <DropdownMenu.ItemLabel>
-                            {layout.sidebar.workspaces(p.worktree)()
+                            {layout.sidebar.workspaces(p().worktree)()
                               ? language.t("sidebar.workspaces.disable")
                               : language.t("sidebar.workspaces.enable")}
                           </DropdownMenu.ItemLabel>
                         </DropdownMenu.Item>
                         <DropdownMenu.Item
                           data-action="project-clear-notifications"
-                          data-project={base64Encode(p.worktree)}
+                          data-project={base64Encode(p().worktree)}
                           disabled={unseenCount() === 0}
                           onSelect={clearNotifications}
                         >
@@ -1920,8 +2015,8 @@ export default function Layout(props: ParentProps) {
                         <DropdownMenu.Separator />
                         <DropdownMenu.Item
                           data-action="project-close-menu"
-                          data-project={base64Encode(p.worktree)}
-                          onSelect={() => closeProject(p.worktree)}
+                          data-project={base64Encode(p().worktree)}
+                          onSelect={() => closeProject(p().worktree)}
                         >
                           <DropdownMenu.ItemLabel>{language.t("common.close")}</DropdownMenu.ItemLabel>
                         </DropdownMenu.Item>
@@ -1937,25 +2032,19 @@ export default function Layout(props: ParentProps) {
                   fallback={
                     <>
                       <div class="shrink-0 py-4 px-3">
-                        <TooltipKeybind
-                          title={language.t("command.session.new")}
-                          keybind={command.keybind("session.new")}
-                          placement="top"
+                        <Button
+                          size="large"
+                          icon="plus-small"
+                          class="w-full"
+                          onClick={() => navigateWithSidebarReset(`/${base64Encode(p().worktree)}/session`)}
                         >
-                          <Button
-                            size="large"
-                            icon="plus-small"
-                            class="w-full"
-                            onClick={() => navigateWithSidebarReset(`/${base64Encode(p.worktree)}/session`)}
-                          >
-                            {language.t("command.session.new")}
-                          </Button>
-                        </TooltipKeybind>
+                          {language.t("command.session.new")}
+                        </Button>
                       </div>
                       <div class="flex-1 min-h-0">
                         <LocalWorkspace
                           ctx={workspaceSidebarCtx}
-                          project={p}
+                          project={p()}
                           sortNow={sortNow}
                           mobile={panelProps.mobile}
                         />
@@ -1965,15 +2054,9 @@ export default function Layout(props: ParentProps) {
                 >
                   <>
                     <div class="shrink-0 py-4 px-3">
-                      <TooltipKeybind
-                        title={language.t("workspace.new")}
-                        keybind={command.keybind("workspace.new")}
-                        placement="top"
-                      >
-                        <Button size="large" icon="plus-small" class="w-full" onClick={() => createWorkspace(p)}>
-                          {language.t("workspace.new")}
-                        </Button>
-                      </TooltipKeybind>
+                      <Button size="large" icon="plus-small" class="w-full" onClick={() => createWorkspace(p())}>
+                        {language.t("workspace.new")}
+                      </Button>
                     </div>
                     <div class="relative flex-1 min-h-0">
                       <DragDropProvider
@@ -1996,7 +2079,7 @@ export default function Layout(props: ParentProps) {
                                 <SortableWorkspace
                                   ctx={workspaceSidebarCtx}
                                   directory={directory}
-                                  project={p}
+                                  project={p()}
                                   sortNow={sortNow}
                                   mobile={panelProps.mobile}
                                 />
@@ -2021,25 +2104,31 @@ export default function Layout(props: ParentProps) {
         </Show>
 
         <div
-          class="shrink-0 px-2 py-3 border-t border-border-weak-base"
+          class="shrink-0 px-3 py-3"
           classList={{
-            hidden: !(providers.all().length > 0 && providers.paid().length === 0),
+            hidden: store.gettingStartedDismissed || !(providers.all().length > 0 && providers.paid().length === 0),
           }}
         >
-          <div class="rounded-md bg-background-base shadow-xs-border-base">
-            <div class="p-3 flex flex-col gap-2">
-              <div class="text-12-medium text-text-strong">{language.t("sidebar.gettingStarted.title")}</div>
-              <div class="text-text-base">{language.t("sidebar.gettingStarted.line1")}</div>
-              <div class="text-text-base">{language.t("sidebar.gettingStarted.line2")}</div>
+          <div class="rounded-xl bg-background-base shadow-xs-border-base" data-component="getting-started">
+            <div class="p-3 flex flex-col gap-6">
+              <div class="flex flex-col gap-2">
+                <div class="text-14-medium text-text-strong">{language.t("sidebar.gettingStarted.title")}</div>
+                <div class="text-14-regular text-text-base" style={{ "line-height": "var(--line-height-normal)" }}>
+                  {language.t("sidebar.gettingStarted.line1")}
+                </div>
+                <div class="text-14-regular text-text-base" style={{ "line-height": "var(--line-height-normal)" }}>
+                  {language.t("sidebar.gettingStarted.line2")}
+                </div>
+              </div>
+              <div data-component="getting-started-actions">
+                <Button size="large" icon="plus-small" onClick={connectProvider}>
+                  {language.t("command.provider.connect")}
+                </Button>
+                <Button size="large" variant="ghost" onClick={() => setStore("gettingStartedDismissed", true)}>
+                  Not yet
+                </Button>
+              </div>
             </div>
-            <Button
-              class="flex w-full text-left justify-start text-12-medium text-text-strong stroke-[1.5px] rounded-md rounded-t-none shadow-none border-t border-border-weak-base px-3"
-              size="large"
-              icon="plus"
-              onClick={connectProvider}
-            >
-              {language.t("command.provider.connect")}
-            </Button>
           </div>
         </div>
       </div>
@@ -2047,143 +2136,204 @@ export default function Layout(props: ParentProps) {
   }
 
   return (
-    <div class="relative bg-background-base flex-1 min-h-0 flex flex-col select-none [&_input]:select-text [&_textarea]:select-text [&_[contenteditable]]:select-text">
+    <div class="relative bg-background-base flex-1 min-h-0 min-w-0 flex flex-col select-none [&_input]:select-text [&_textarea]:select-text [&_[contenteditable]]:select-text">
       <Titlebar />
-      <div class="flex-1 min-h-0 flex">
-        <nav
-          aria-label={language.t("sidebar.nav.projectsAndSessions")}
-          data-component="sidebar-nav-desktop"
-          classList={{
-            "hidden xl:block": true,
-            "relative shrink-0": true,
-          }}
-          style={{ width: layout.sidebar.opened() ? `${Math.max(layout.sidebar.width(), 244)}px` : "64px" }}
-          ref={(el) => {
-            setState("nav", el)
-          }}
-          onMouseEnter={() => {
-            if (navLeave.current === undefined) return
-            clearTimeout(navLeave.current)
-            navLeave.current = undefined
-          }}
-          onMouseLeave={() => {
-            aim.reset()
-            if (!sidebarHovering()) return
+      <div class="flex-1 min-h-0 min-w-0 flex">
+        <div class="flex-1 min-h-0 relative">
+          <div class="size-full relative overflow-x-hidden">
+            <nav
+              aria-label={language.t("sidebar.nav.projectsAndSessions")}
+              data-component="sidebar-nav-desktop"
+              classList={{
+                "hidden xl:block": true,
+                "absolute inset-y-0 left-0": true,
+                "z-10": true,
+              }}
+              style={{ width: `${Math.max(layout.sidebar.width(), 244)}px` }}
+              ref={(el) => {
+                setState("nav", el)
+              }}
+              onMouseEnter={() => {
+                disarm()
+              }}
+              onMouseLeave={() => {
+                aim.reset()
+                if (!sidebarHovering()) return
 
-            if (navLeave.current !== undefined) clearTimeout(navLeave.current)
-            navLeave.current = window.setTimeout(() => {
-              navLeave.current = undefined
-              setHoverProject(undefined)
-              setState("hoverSession", undefined)
-            }, 300)
-          }}
-        >
-          <div class="@container w-full h-full contain-strict">
-            <SidebarContent
-              opened={() => layout.sidebar.opened()}
-              aimMove={aim.move}
-              projects={() => layout.projects.list()}
-              renderProject={(project) => (
-                <SortableProject ctx={projectSidebarCtx} project={project} sortNow={sortNow} />
-              )}
-              handleDragStart={handleDragStart}
-              handleDragEnd={handleDragEnd}
-              handleDragOver={handleDragOver}
-              openProjectLabel={language.t("command.project.open")}
-              openProjectKeybind={() => command.keybind("project.open")}
-              onOpenProject={chooseProject}
-              renderProjectOverlay={() => (
-                <ProjectDragOverlay projects={() => layout.projects.list()} activeProject={() => store.activeProject} />
-              )}
-              settingsLabel={() => language.t("sidebar.settings")}
-              settingsKeybind={() => command.keybind("settings.open")}
-              onOpenSettings={openSettings}
-              helpLabel={() => language.t("sidebar.help")}
-              onOpenHelp={() => platform.openLink("https://opencode.ai/desktop-feedback")}
-              renderPanel={() => (
-                <Show when={currentProject()} keyed>
-                  {(project) => <SidebarPanel project={project} />}
-                </Show>
-              )}
-            />
-          </div>
-          <Show when={!layout.sidebar.opened() ? hoverProjectData()?.worktree : undefined} keyed>
-            {(worktree) => (
-              <div class="absolute inset-y-0 left-16 z-50 flex" onMouseEnter={aim.reset}>
-                <SidebarPanel project={hoverProjectData()} />
+                arm()
+              }}
+            >
+              <div class="@container w-full h-full contain-strict">
+                <SidebarContent
+                  opened={() => layout.sidebar.opened()}
+                  aimMove={aim.move}
+                  projects={() => layout.projects.list()}
+                  renderProject={(project) => (
+                    <SortableProject ctx={projectSidebarCtx} project={project} sortNow={sortNow} />
+                  )}
+                  handleDragStart={handleDragStart}
+                  handleDragEnd={handleDragEnd}
+                  handleDragOver={handleDragOver}
+                  openProjectLabel={language.t("command.project.open")}
+                  openProjectKeybind={() => command.keybind("project.open")}
+                  onOpenProject={chooseProject}
+                  renderProjectOverlay={() => (
+                    <ProjectDragOverlay
+                      projects={() => layout.projects.list()}
+                      activeProject={() => store.activeProject}
+                    />
+                  )}
+                  settingsLabel={() => language.t("sidebar.settings")}
+                  settingsKeybind={() => command.keybind("settings.open")}
+                  onOpenSettings={openSettings}
+                  helpLabel={() => language.t("sidebar.help")}
+                  onOpenHelp={() => platform.openLink("https://opencode.ai/desktop-feedback")}
+                  renderPanel={() => (
+                    <Show when={currentProject()} keyed>
+                      {(project) => <SidebarPanel project={project} merged />}
+                    </Show>
+                  )}
+                />
               </div>
-            )}
-          </Show>
-          <Show when={layout.sidebar.opened()}>
-            <ResizeHandle
-              direction="horizontal"
-              size={layout.sidebar.width()}
-              min={244}
-              max={typeof window === "undefined" ? 1000 : window.innerWidth * 0.3 + 64}
-              collapseThreshold={244}
-              onResize={layout.sidebar.resize}
-              onCollapse={layout.sidebar.close}
-            />
-          </Show>
-        </nav>
-        <div class="xl:hidden">
-          <div
-            classList={{
-              "fixed inset-x-0 top-10 bottom-0 z-40 transition-opacity duration-200": true,
-              "opacity-100 pointer-events-auto": layout.mobileSidebar.opened(),
-              "opacity-0 pointer-events-none": !layout.mobileSidebar.opened(),
-            }}
-            onClick={(e) => {
-              if (e.target === e.currentTarget) layout.mobileSidebar.hide()
-            }}
-          />
-          <nav
-            aria-label={language.t("sidebar.nav.projectsAndSessions")}
-            data-component="sidebar-nav-mobile"
-            classList={{
-              "@container fixed top-10 bottom-0 left-0 z-50 w-72 bg-background-base transition-transform duration-200 ease-out": true,
-              "translate-x-0": layout.mobileSidebar.opened(),
-              "-translate-x-full": !layout.mobileSidebar.opened(),
-            }}
-            onClick={(e) => e.stopPropagation()}
-          >
-            <SidebarContent
-              mobile
-              opened={() => layout.sidebar.opened()}
-              aimMove={aim.move}
-              projects={() => layout.projects.list()}
-              renderProject={(project) => (
-                <SortableProject ctx={projectSidebarCtx} project={project} sortNow={sortNow} mobile />
-              )}
-              handleDragStart={handleDragStart}
-              handleDragEnd={handleDragEnd}
-              handleDragOver={handleDragOver}
-              openProjectLabel={language.t("command.project.open")}
-              openProjectKeybind={() => command.keybind("project.open")}
-              onOpenProject={chooseProject}
-              renderProjectOverlay={() => (
-                <ProjectDragOverlay projects={() => layout.projects.list()} activeProject={() => store.activeProject} />
-              )}
-              settingsLabel={() => language.t("sidebar.settings")}
-              settingsKeybind={() => command.keybind("settings.open")}
-              onOpenSettings={openSettings}
-              helpLabel={() => language.t("sidebar.help")}
-              onOpenHelp={() => platform.openLink("https://opencode.ai/desktop-feedback")}
-              renderPanel={() => <SidebarPanel project={currentProject()} mobile />}
-            />
-          </nav>
-        </div>
+              <Show when={layout.sidebar.opened()}>
+                <div onPointerDown={() => setSizing(true)}>
+                  <ResizeHandle
+                    direction="horizontal"
+                    size={layout.sidebar.width()}
+                    min={244}
+                    max={typeof window === "undefined" ? 1000 : window.innerWidth * 0.3 + 64}
+                    collapseThreshold={244}
+                    onResize={(w) => {
+                      setSizing(true)
+                      if (sizet !== undefined) clearTimeout(sizet)
+                      sizet = window.setTimeout(() => setSizing(false), 120)
+                      layout.sidebar.resize(w)
+                    }}
+                    onCollapse={layout.sidebar.close}
+                  />
+                </div>
+              </Show>
+            </nav>
 
-        <main
-          classList={{
-            "size-full overflow-x-hidden flex flex-col items-start contain-strict border-t border-border-weak-base": true,
-            "xl:border-l xl:rounded-tl-[12px]": !layout.sidebar.opened(),
-          }}
-        >
-          <Show when={!autoselecting()} fallback={<div class="size-full" />}>
-            {props.children}
-          </Show>
-        </main>
+            <div
+              class="hidden xl:block pointer-events-none absolute top-0 right-0 z-0 border-t border-border-weaker-base"
+              style={{ left: "calc(4rem + 12px)" }}
+            />
+
+            <div class="xl:hidden">
+              <div
+                classList={{
+                  "fixed inset-x-0 top-10 bottom-0 z-40 transition-opacity duration-200": true,
+                  "opacity-100 pointer-events-auto": layout.mobileSidebar.opened(),
+                  "opacity-0 pointer-events-none": !layout.mobileSidebar.opened(),
+                }}
+                onClick={(e) => {
+                  if (e.target === e.currentTarget) layout.mobileSidebar.hide()
+                }}
+              />
+              <nav
+                aria-label={language.t("sidebar.nav.projectsAndSessions")}
+                data-component="sidebar-nav-mobile"
+                classList={{
+                  "@container fixed top-10 bottom-0 left-0 z-50 w-full max-w-[400px] overflow-hidden border-r border-border-weaker-base bg-background-base transition-transform duration-200 ease-out": true,
+                  "translate-x-0": layout.mobileSidebar.opened(),
+                  "-translate-x-full": !layout.mobileSidebar.opened(),
+                }}
+                onClick={(e) => e.stopPropagation()}
+              >
+                <SidebarContent
+                  mobile
+                  opened={() => layout.sidebar.opened()}
+                  aimMove={aim.move}
+                  projects={() => layout.projects.list()}
+                  renderProject={(project) => (
+                    <SortableProject ctx={projectSidebarCtx} project={project} sortNow={sortNow} mobile />
+                  )}
+                  handleDragStart={handleDragStart}
+                  handleDragEnd={handleDragEnd}
+                  handleDragOver={handleDragOver}
+                  openProjectLabel={language.t("command.project.open")}
+                  openProjectKeybind={() => command.keybind("project.open")}
+                  onOpenProject={chooseProject}
+                  renderProjectOverlay={() => (
+                    <ProjectDragOverlay
+                      projects={() => layout.projects.list()}
+                      activeProject={() => store.activeProject}
+                    />
+                  )}
+                  settingsLabel={() => language.t("sidebar.settings")}
+                  settingsKeybind={() => command.keybind("settings.open")}
+                  onOpenSettings={openSettings}
+                  helpLabel={() => language.t("sidebar.help")}
+                  onOpenHelp={() => platform.openLink("https://opencode.ai/desktop-feedback")}
+                  renderPanel={() => <SidebarPanel project={currentProject()} mobile />}
+                />
+              </nav>
+            </div>
+
+            <div
+              classList={{
+                "absolute inset-0": true,
+                "xl:inset-y-0 xl:right-0 xl:left-[var(--main-left)]": true,
+                "z-20": true,
+                "transition-[left] duration-200 ease-[cubic-bezier(0.22,1,0.36,1)] will-change-[left] motion-reduce:transition-none":
+                  !sizing(),
+              }}
+              style={{
+                "--main-left": layout.sidebar.opened() ? `${Math.max(layout.sidebar.width(), 244)}px` : "4rem",
+              }}
+            >
+              <main
+                classList={{
+                  "size-full overflow-x-hidden flex flex-col items-start contain-strict border-t border-border-weak-base bg-background-base xl:border-l xl:rounded-tl-[12px]": true,
+                }}
+              >
+                <Show when={!autoselecting()} fallback={<div class="size-full" />}>
+                  {props.children}
+                </Show>
+              </main>
+            </div>
+
+            <div
+              classList={{
+                "hidden xl:flex absolute inset-y-0 left-16 z-30": true,
+                "opacity-100 translate-x-0 pointer-events-auto": peeked() && !layout.sidebar.opened(),
+                "opacity-0 -translate-x-2 pointer-events-none": !peeked() || layout.sidebar.opened(),
+                "transition-[opacity,transform] motion-reduce:transition-none": true,
+                "duration-180 ease-out": peeked() && !layout.sidebar.opened(),
+                "duration-120 ease-in": !peeked() || layout.sidebar.opened(),
+              }}
+              onMouseMove={disarm}
+              onMouseEnter={() => {
+                disarm()
+                aim.reset()
+              }}
+              onPointerDown={disarm}
+              onMouseLeave={() => {
+                arm()
+              }}
+            >
+              <Show when={peek()} keyed>
+                {(project) => <SidebarPanel project={project} merged={false} />}
+              </Show>
+            </div>
+
+            <div
+              classList={{
+                "hidden xl:block pointer-events-none absolute inset-y-0 right-0 z-25 overflow-hidden": true,
+                "opacity-100 translate-x-0": peeked() && !layout.sidebar.opened(),
+                "opacity-0 -translate-x-2": !peeked() || layout.sidebar.opened(),
+                "transition-[opacity,transform] motion-reduce:transition-none": true,
+                "duration-180 ease-out": peeked() && !layout.sidebar.opened(),
+                "duration-120 ease-in": !peeked() || layout.sidebar.opened(),
+              }}
+              style={{ left: `calc(4rem + ${Math.max(Math.max(layout.sidebar.width(), 244) - 64, 0)}px)` }}
+            >
+              <div class="h-full w-px" style={{ "box-shadow": "var(--shadow-sidebar-overlay)" }} />
+            </div>
+          </div>
+        </div>
+        {import.meta.env.DEV && <DebugBar />}
       </div>
       <Toast.Region />
     </div>

packages/app/src/pages/layout/sidebar-items.tsx

@@ -163,7 +163,6 @@ const SessionHoverPreview = (props: {
     gutter={16}
     shift={-2}
     trigger={props.trigger}
-    mount={!props.mobile ? props.nav() : undefined}
     open={props.hoverSession() === props.session.id}
     onOpenChange={(open) => props.setHoverSession(open ? props.session.id : undefined)}
   >

packages/app/src/pages/layout/sidebar-project.tsx

@@ -5,8 +5,6 @@ import { Button } from "@opencode-ai/ui/button"
 import { ContextMenu } from "@opencode-ai/ui/context-menu"
 import { HoverCard } from "@opencode-ai/ui/hover-card"
 import { Icon } from "@opencode-ai/ui/icon"
-import { IconButton } from "@opencode-ai/ui/icon-button"
-import { Tooltip } from "@opencode-ai/ui/tooltip"
 import { createSortable } from "@thisbeyond/solid-dnd"
 import { useLayout, type LocalProject } from "@/context/layout"
 import { useGlobalSync } from "@/context/global-sync"
@@ -93,6 +91,7 @@ const ProjectTile = (props: {
       modal={!props.sidebarHovering()}
       onOpenChange={(value) => {
         props.setMenu(value)
+        props.setSuppressHover(value)
         if (value) props.setOpen(false)
       }}
     >
@@ -109,6 +108,12 @@ const ProjectTile = (props: {
             !props.selected() && !props.active(),
           "bg-surface-base-hover border border-border-weak-base": !props.selected() && props.active(),
         }}
+        onPointerDown={(event) => {
+          if (!props.overlay()) return
+          if (event.button !== 2 && !(event.button === 0 && event.ctrlKey)) return
+          props.setSuppressHover(true)
+          event.preventDefault()
+        }}
         onMouseEnter={(event: MouseEvent) => {
           if (!props.overlay()) return
           if (props.suppressHover()) return
@@ -137,7 +142,7 @@ const ProjectTile = (props: {
       >
         <ProjectIcon project={props.project} notify />
       </ContextMenu.Trigger>
-      <ContextMenu.Portal mount={!props.mobile ? props.nav() : undefined}>
+      <ContextMenu.Portal>
         <ContextMenu.Content>
           <ContextMenu.Item onSelect={() => props.showEditProjectDialog(props.project)}>
             <ContextMenu.ItemLabel>{props.language.t("common.edit")}</ContextMenu.ItemLabel>
@@ -194,21 +199,6 @@ const ProjectPreviewPanel = (props: {
   <div class="-m-3 p-2 flex flex-col w-72">
     <div class="px-4 pt-2 pb-1 flex items-center gap-2">
       <div class="text-14-medium text-text-strong truncate grow">{displayName(props.project)}</div>
-      <Tooltip value={props.language.t("common.close")} placement="top" gutter={6}>
-        <IconButton
-          icon="circle-x"
-          variant="ghost"
-          class="shrink-0"
-          data-action="project-close-hover"
-          data-project={base64Encode(props.project.worktree)}
-          aria-label={props.language.t("common.close")}
-          onClick={(event) => {
-            event.stopPropagation()
-            props.setOpen(false)
-            props.ctx.closeProject(props.project.worktree)
-          }}
-        />
-      </Tooltip>
     </div>
     <div class="px-4 pb-2 text-12-medium text-text-weak">{props.language.t("sidebar.project.recentSessions")}</div>
     <div class="px-2 pb-2 flex flex-col gap-2">

packages/app/src/pages/layout/sidebar-shell.tsx

@@ -1,4 +1,4 @@
-import { createMemo, For, Show, type Accessor, type JSX } from "solid-js"
+import { createEffect, createMemo, For, Show, type Accessor, type JSX } from "solid-js"
 import {
   DragDropProvider,
   DragDropSensors,
@@ -35,10 +35,22 @@ export const SidebarContent = (props: {
 }): JSX.Element => {
   const expanded = createMemo(() => sidebarExpanded(props.mobile, props.opened()))
   const placement = () => (props.mobile ? "bottom" : "right")
+  let panel: HTMLDivElement | undefined
+
+  createEffect(() => {
+    const el = panel
+    if (!el) return
+    if (expanded()) {
+      el.removeAttribute("inert")
+      return
+    }
+    el.setAttribute("inert", "")
+  })
 
   return (
-    <div class="flex h-full w-full overflow-hidden">
+    <div class="flex h-full w-full min-w-0 overflow-hidden">
       <div
+        data-component="sidebar-rail"
         class="w-16 shrink-0 bg-background-base flex flex-col items-center overflow-hidden"
         onMouseMove={props.aimMove}
       >
@@ -100,7 +112,15 @@ export const SidebarContent = (props: {
         </div>
       </div>
 
-      <Show when={expanded()}>{props.renderPanel()}</Show>
+      <div
+        ref={(el) => {
+          panel = el
+        }}
+        classList={{ "flex h-full min-h-0 min-w-0 overflow-hidden": true, "pointer-events-none": !expanded() }}
+        aria-hidden={!expanded()}
+      >
+        {props.renderPanel()}
+      </div>
     </div>
   )
 }

packages/app/src/pages/layout/sidebar-workspace.tsx

@@ -182,7 +182,7 @@ const WorkspaceActions = (props: {
           aria-label={props.language.t("common.moreOptions")}
         />
       </Tooltip>
-      <DropdownMenu.Portal mount={!props.mobile ? props.nav() : undefined}>
+      <DropdownMenu.Portal>
         <DropdownMenu.Content
           onCloseAutoFocus={(event) => {
             if (!props.pendingRename()) return
@@ -249,7 +249,7 @@ const WorkspaceSessionList = (props: {
   loadMore: () => Promise<void>
   language: ReturnType<typeof useLanguage>
 }): JSX.Element => (
-  <nav class="flex flex-col gap-1 px-2">
+  <nav class="flex flex-col gap-1 px-3">
     <Show when={props.showNew()}>
       <NewSessionItem
         slug={props.slug()}
@@ -490,7 +490,7 @@ export const LocalWorkspace = (props: {
       ref={(el) => props.ctx.setScrollContainerRef(el, props.mobile)}
       class="size-full flex flex-col py-2 overflow-y-auto no-scrollbar [overflow-anchor:none]"
     >
-      <nav class="flex flex-col gap-1 px-2">
+      <nav class="flex flex-col gap-1 px-3">
         <Show when={loading()}>
           <SessionSkeleton />
         </Show>

packages/app/src/pages/session.tsx

@@ -1,4 +1,4 @@
-import type { UserMessage } from "@opencode-ai/sdk/v2"
+import type { Project, UserMessage } from "@opencode-ai/sdk/v2"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import {
   onCleanup,
@@ -20,28 +20,30 @@ import { createStore } from "solid-js/store"
 import { ResizeHandle } from "@opencode-ai/ui/resize-handle"
 import { Select } from "@opencode-ai/ui/select"
 import { createAutoScroll } from "@opencode-ai/ui/hooks"
-import { Mark } from "@opencode-ai/ui/logo"
+import { Button } from "@opencode-ai/ui/button"
+import { showToast } from "@opencode-ai/ui/toast"
 import { base64Encode, checksum } from "@opencode-ai/util/encode"
 import { useNavigate, useParams, useSearchParams } from "@solidjs/router"
 import { NewSessionView, SessionHeader } from "@/components/session"
 import { useComments } from "@/context/comments"
+import { useGlobalSync } from "@/context/global-sync"
 import { useLanguage } from "@/context/language"
 import { useLayout } from "@/context/layout"
 import { usePrompt } from "@/context/prompt"
 import { useSDK } from "@/context/sdk"
 import { useSync } from "@/context/sync"
 import { createSessionComposerState, SessionComposerRegion } from "@/pages/session/composer"
-import { same } from "@opencode-ai/util/array"
-import { isEditableTarget } from "@/utils/dom"
-import { createOpenReviewFile } from "@/pages/session/helpers"
+import { createOpenReviewFile, createSizing } from "@/pages/session/helpers"
 import { MessageTimeline } from "@/pages/session/message-timeline"
 import { type DiffStyle, SessionReviewTab, type SessionReviewTabProps } from "@/pages/session/review-tab"
-import { createScrollSpy } from "@/pages/session/scroll-spy"
-import { useSessionCommands } from "@/pages/session/use-session-commands"
+import { resetSessionModel, syncSessionModel } from "@/pages/session/session-model-helpers"
 import { SessionMobileTabs } from "@/pages/session/session-mobile-tabs"
 import { SessionSidePanel } from "@/pages/session/session-side-panel"
 import { TerminalPanel } from "@/pages/session/terminal-panel"
+import { useSessionCommands } from "@/pages/session/use-session-commands"
 import { useSessionHashScroll } from "@/pages/session/use-session-hash-scroll"
+import { same } from "@/utils/same"
+import { formatServerError } from "@/utils/server-errors"
 
 const emptyUserMessages: UserMessage[] = []
 
@@ -119,13 +121,13 @@ function createSessionHistoryWindow(input: SessionHistoryWindowInput) {
       return
     }
     const beforeTop = el.scrollTop
+    const beforeHeight = el.scrollHeight
     fn()
-    // SolidJS updates the DOM synchronously. Force reflow so the browser
-    // processes the new layout, then restore scrollTop before paint.
-    // With column-reverse + overflow-anchor:none the same scrollTop value
-    // keeps the same distance from the bottom — no delta math needed.
-    void el.scrollHeight
-    el.scrollTop = beforeTop
+    requestAnimationFrame(() => {
+      const delta = el.scrollHeight - beforeHeight
+      if (!delta) return
+      el.scrollTop = beforeTop + delta
+    })
   }
 
   const backfillTurns = () => {
@@ -208,8 +210,7 @@ function createSessionHistoryWindow(input: SessionHistoryWindowInput) {
     if (!input.userScrolled()) return
     const el = input.scroller()
     if (!el) return
-    // With column-reverse, distance from top = scrollHeight - clientHeight + scrollTop
-    if (el.scrollHeight - el.clientHeight + el.scrollTop >= turnScrollThreshold) return
+    if (el.scrollTop >= turnScrollThreshold) return
 
     const start = turnStart()
     if (start > 0) {
@@ -254,6 +255,7 @@ function createSessionHistoryWindow(input: SessionHistoryWindowInput) {
 }
 
 export default function Page() {
+  const globalSync = useGlobalSync()
   const layout = useLayout()
   const local = useLocal()
   const file = useFile()
@@ -280,13 +282,16 @@ export default function Page() {
   })
 
   const [ui, setUi] = createStore({
+    git: false,
     pendingMessage: undefined as string | undefined,
+    reviewSnap: false,
     scrollGesture: 0,
     scroll: {
       overflow: false,
       bottom: true,
     },
   })
+
   const composer = createSessionComposerState()
 
   const sessionKey = createMemo(() => `${params.dir}${params.id ? "/" + params.id : ""}`)
@@ -332,6 +337,7 @@ export default function Page() {
   )
 
   const isDesktop = createMediaQuery("(min-width: 768px)")
+  const size = createSizing()
   const desktopReviewOpen = createMemo(() => isDesktop() && view().reviewPanel.opened())
   const desktopFileTreeOpen = createMemo(() => isDesktop() && layout.fileTree.opened())
   const desktopSidePanelOpen = createMemo(() => desktopReviewOpen() || desktopFileTreeOpen())
@@ -417,22 +423,58 @@ export default function Page() {
       () => {
         const msg = lastUserMessage()
         if (!msg) return
-        if (msg.agent) {
-          local.agent.set(msg.agent)
-          if (local.agent.current()?.model) return
-        }
-        if (msg.model) local.model.set(msg.model)
+        syncSessionModel(local, msg)
       },
     ),
   )
 
+  createEffect(
+    on(
+      () => ({ dir: params.dir, id: params.id }),
+      (next, prev) => {
+        if (!prev) return
+        if (next.dir === prev.dir && next.id === prev.id) return
+        if (prev.id) sync.session.evict(prev.id, prev.dir)
+        if (!next.id) resetSessionModel(local)
+      },
+      { defer: true },
+    ),
+  )
+
   const [store, setStore] = createStore({
     messageId: undefined as string | undefined,
     mobileTab: "session" as "session" | "changes",
     changes: "session" as "session" | "turn",
     newSessionWorktree: "main",
+    deferRender: false,
   })
 
+  createComputed((prev) => {
+    const key = sessionKey()
+    if (key !== prev) {
+      setStore("deferRender", true)
+      requestAnimationFrame(() => {
+        setTimeout(() => setStore("deferRender", false), 0)
+      })
+    }
+    return key
+  }, sessionKey())
+
+  let reviewFrame: number | undefined
+
+  createComputed((prev) => {
+    const open = desktopReviewOpen()
+    if (prev === undefined || prev === open) return open
+
+    if (reviewFrame !== undefined) cancelAnimationFrame(reviewFrame)
+    setUi("reviewSnap", true)
+    reviewFrame = requestAnimationFrame(() => {
+      reviewFrame = undefined
+      setUi("reviewSnap", false)
+    })
+    return open
+  }, desktopReviewOpen())
+
   const turnDiffs = createMemo(() => lastUserMessage()?.summary?.diffs ?? [])
   const reviewDiffs = createMemo(() => (store.changes === "session" ? diffs() : turnDiffs()))
 
@@ -444,14 +486,48 @@ export default function Page() {
   })
 
   const setActiveMessage = (message: UserMessage | undefined) => {
+    messageMark = scrollMark
     setStore("messageId", message?.id)
   }
 
+  const anchor = (id: string) => `message-${id}`
+
+  const cursor = () => {
+    const root = scroller
+    if (!root) return store.messageId
+
+    const box = root.getBoundingClientRect()
+    const line = box.top + 100
+    const list = [...root.querySelectorAll<HTMLElement>("[data-message-id]")]
+      .map((el) => {
+        const id = el.dataset.messageId
+        if (!id) return
+
+        const rect = el.getBoundingClientRect()
+        return { id, top: rect.top, bottom: rect.bottom }
+      })
+      .filter((item): item is { id: string; top: number; bottom: number } => !!item)
+
+    const shown = list.filter((item) => item.bottom > box.top && item.top < box.bottom)
+    const hit = shown.find((item) => item.top <= line && item.bottom >= line)
+    if (hit) return hit.id
+
+    const near = [...shown].sort((a, b) => {
+      const da = Math.abs(a.top - line)
+      const db = Math.abs(b.top - line)
+      if (da !== db) return da - db
+      return a.top - b.top
+    })[0]
+    if (near) return near.id
+
+    return list.filter((item) => item.top <= line).at(-1)?.id ?? list[0]?.id ?? store.messageId
+  }
+
   function navigateMessageByOffset(offset: number) {
     const msgs = visibleUserMessages()
     if (msgs.length === 0) return
 
-    const current = store.messageId
+    const current = store.messageId && messageMark === scrollMark ? store.messageId : cursor()
     const base = current ? msgs.findIndex((m) => m.id === current) : msgs.length
     const currentIndex = base === -1 ? msgs.length : base
     const targetIndex = currentIndex + offset
@@ -474,15 +550,58 @@ export default function Page() {
   })
   const reviewEmptyKey = createMemo(() => {
     const project = sync.project
-    if (!project || project.vcs) return "session.review.empty"
-    return "session.review.noVcs"
+    if (project && !project.vcs) return "session.review.noVcs"
+    if (sync.data.config.snapshot === false) return "session.review.noSnapshot"
+    return "session.review.empty"
   })
 
+  function upsert(next: Project) {
+    const list = globalSync.data.project
+    sync.set("project", next.id)
+    const idx = list.findIndex((item) => item.id === next.id)
+    if (idx >= 0) {
+      globalSync.set(
+        "project",
+        list.map((item, i) => (i === idx ? { ...item, ...next } : item)),
+      )
+      return
+    }
+    const at = list.findIndex((item) => item.id > next.id)
+    if (at >= 0) {
+      globalSync.set("project", [...list.slice(0, at), next, ...list.slice(at)])
+      return
+    }
+    globalSync.set("project", [...list, next])
+  }
+
+  function initGit() {
+    if (ui.git) return
+    setUi("git", true)
+    void sdk.client.project
+      .initGit()
+      .then((x) => {
+        if (!x.data) return
+        upsert(x.data)
+      })
+      .catch((err) => {
+        showToast({
+          variant: "error",
+          title: language.t("common.requestFailed"),
+          description: formatServerError(err, language.t),
+        })
+      })
+      .finally(() => {
+        setUi("git", false)
+      })
+  }
+
   let inputRef!: HTMLDivElement
   let promptDock: HTMLDivElement | undefined
   let dockHeight = 0
   let scroller: HTMLDivElement | undefined
   let content: HTMLDivElement | undefined
+  let scrollMark = 0
+  let messageMark = 0
 
   const scrollGestureWindowMs = 250
 
@@ -527,6 +646,7 @@ export default function Page() {
       () => {
         setStore("messageId", undefined)
         setStore("changes", "session")
+        setUi("pendingMessage", undefined)
       },
       { defer: true },
     ),
@@ -604,6 +724,11 @@ export default function Page() {
     saveLabel: language.t("common.save"),
   }))
 
+  const isEditableTarget = (target: EventTarget | null | undefined) => {
+    if (!(target instanceof HTMLElement)) return false
+    return /^(INPUT|TEXTAREA|SELECT|BUTTON)$/.test(target.tagName) || target.isContentEditable
+  }
+
   const deepActiveElement = () => {
     let current: Element | null = document.activeElement
     while (current instanceof HTMLElement && current.shadowRoot?.activeElement) {
@@ -706,23 +831,28 @@ export default function Page() {
   const changesOptions = ["session", "turn"] as const
   const changesOptionsList = [...changesOptions]
 
-  const changesTitle = () => (
-    <Select
-      options={changesOptionsList}
-      current={store.changes}
-      label={(option) =>
-        option === "session" ? language.t("ui.sessionReview.title") : language.t("ui.sessionReview.title.lastTurn")
-      }
-      onSelect={(option) => option && setStore("changes", option)}
-      variant="ghost"
-      size="small"
-      valueClass="text-14-medium"
-    />
-  )
+  const changesTitle = () => {
+    if (!hasReview()) {
+      return null
+    }
+
+    return (
+      <Select
+        options={changesOptionsList}
+        current={store.changes}
+        label={(option) =>
+          option === "session" ? language.t("ui.sessionReview.title") : language.t("ui.sessionReview.title.lastTurn")
+        }
+        onSelect={(option) => option && setStore("changes", option)}
+        variant="ghost"
+        size="small"
+        valueClass="text-14-medium"
+      />
+    )
+  }
 
   const emptyTurn = () => (
-    <div class="h-full pb-30 flex flex-col items-center justify-center text-center gap-6">
-      <Mark class="w-14 opacity-10" />
+    <div class="h-full pb-64 -mt-4 flex flex-col items-center justify-center text-center gap-6">
       <div class="text-14-regular text-text-weak max-w-56">{language.t("session.review.noChanges")}</div>
     </div>
   )
@@ -734,35 +864,12 @@ export default function Page() {
     loadingClass: string
     emptyClass: string
   }) => (
-    <Switch>
-      <Match when={store.changes === "turn" && !!params.id}>
-        <SessionReviewTab
-          title={changesTitle()}
-          empty={emptyTurn()}
-          diffs={reviewDiffs}
-          view={view}
-          diffStyle={input.diffStyle}
-          onDiffStyleChange={input.onDiffStyleChange}
-          onScrollRef={(el) => setTree("reviewScroll", el)}
-          focusedFile={tree.activeDiff}
-          onLineComment={(comment) => addCommentToContext({ ...comment, origin: "review" })}
-          onLineCommentUpdate={updateCommentInContext}
-          onLineCommentDelete={removeCommentFromContext}
-          lineCommentActions={reviewCommentActions()}
-          comments={comments.all()}
-          focusedComment={comments.focus()}
-          onFocusedCommentChange={comments.setFocus}
-          onViewFile={openReviewFile}
-          classes={input.classes}
-        />
-      </Match>
-      <Match when={hasReview()}>
-        <Show
-          when={diffsReady()}
-          fallback={<div class={input.loadingClass}>{language.t("session.review.loadingChanges")}</div>}
-        >
+    <Show when={!store.deferRender}>
+      <Switch>
+        <Match when={store.changes === "turn" && !!params.id}>
           <SessionReviewTab
             title={changesTitle()}
+            empty={emptyTurn()}
             diffs={reviewDiffs}
             view={view}
             diffStyle={input.diffStyle}
@@ -779,39 +886,78 @@ export default function Page() {
             onViewFile={openReviewFile}
             classes={input.classes}
           />
-        </Show>
-      </Match>
-      <Match when={true}>
-        <SessionReviewTab
-          title={changesTitle()}
-          empty={
-            store.changes === "turn" ? (
-              emptyTurn()
-            ) : (
-              <div class={input.emptyClass}>
-                <Mark class="w-14 opacity-10" />
-                <div class="text-14-regular text-text-weak max-w-56">{language.t(reviewEmptyKey())}</div>
-              </div>
-            )
-          }
-          diffs={reviewDiffs}
-          view={view}
-          diffStyle={input.diffStyle}
-          onDiffStyleChange={input.onDiffStyleChange}
-          onScrollRef={(el) => setTree("reviewScroll", el)}
-          focusedFile={tree.activeDiff}
-          onLineComment={(comment) => addCommentToContext({ ...comment, origin: "review" })}
-          onLineCommentUpdate={updateCommentInContext}
-          onLineCommentDelete={removeCommentFromContext}
-          lineCommentActions={reviewCommentActions()}
-          comments={comments.all()}
-          focusedComment={comments.focus()}
-          onFocusedCommentChange={comments.setFocus}
-          onViewFile={openReviewFile}
-          classes={input.classes}
-        />
-      </Match>
-    </Switch>
+        </Match>
+        <Match when={hasReview()}>
+          <Show
+            when={diffsReady()}
+            fallback={<div class={input.loadingClass}>{language.t("session.review.loadingChanges")}</div>}
+          >
+            <SessionReviewTab
+              title={changesTitle()}
+              diffs={reviewDiffs}
+              view={view}
+              diffStyle={input.diffStyle}
+              onDiffStyleChange={input.onDiffStyleChange}
+              onScrollRef={(el) => setTree("reviewScroll", el)}
+              focusedFile={tree.activeDiff}
+              onLineComment={(comment) => addCommentToContext({ ...comment, origin: "review" })}
+              onLineCommentUpdate={updateCommentInContext}
+              onLineCommentDelete={removeCommentFromContext}
+              lineCommentActions={reviewCommentActions()}
+              comments={comments.all()}
+              focusedComment={comments.focus()}
+              onFocusedCommentChange={comments.setFocus}
+              onViewFile={openReviewFile}
+              classes={input.classes}
+            />
+          </Show>
+        </Match>
+        <Match when={true}>
+          <SessionReviewTab
+            title={changesTitle()}
+            empty={
+              store.changes === "turn" ? (
+                emptyTurn()
+              ) : reviewEmptyKey() === "session.review.noVcs" ? (
+                <div class={input.emptyClass}>
+                  <div class="flex flex-col gap-3">
+                    <div class="text-14-medium text-text-strong">Create a Git repository</div>
+                    <div
+                      class="text-14-regular text-text-base max-w-md"
+                      style={{ "line-height": "var(--line-height-normal)" }}
+                    >
+                      Track, review, and undo changes in this project
+                    </div>
+                  </div>
+                  <Button size="large" disabled={ui.git} onClick={initGit}>
+                    {ui.git ? "Creating Git repository..." : "Create Git repository"}
+                  </Button>
+                </div>
+              ) : (
+                <div class={input.emptyClass}>
+                  <div class="text-14-regular text-text-weak max-w-56">{language.t(reviewEmptyKey())}</div>
+                </div>
+              )
+            }
+            diffs={reviewDiffs}
+            view={view}
+            diffStyle={input.diffStyle}
+            onDiffStyleChange={input.onDiffStyleChange}
+            onScrollRef={(el) => setTree("reviewScroll", el)}
+            focusedFile={tree.activeDiff}
+            onLineComment={(comment) => addCommentToContext({ ...comment, origin: "review" })}
+            onLineCommentUpdate={updateCommentInContext}
+            onLineCommentDelete={removeCommentFromContext}
+            lineCommentActions={reviewCommentActions()}
+            comments={comments.all()}
+            focusedComment={comments.focus()}
+            onFocusedCommentChange={comments.setFocus}
+            onViewFile={openReviewFile}
+            classes={input.classes}
+          />
+        </Match>
+      </Switch>
+    </Show>
   )
 
   const reviewPanel = () => (
@@ -821,7 +967,7 @@ export default function Page() {
           diffStyle: layout.review.diffStyle(),
           onDiffStyleChange: layout.review.setDiffStyle,
           loadingClass: "px-6 py-4 text-text-weak",
-          emptyClass: "h-full pb-30 flex flex-col items-center justify-center text-center gap-6",
+          emptyClass: "h-full pb-64 -mt-4 flex flex-col items-center justify-center text-center gap-6",
         })}
       </div>
     </div>
@@ -945,23 +1091,6 @@ export default function Page() {
     tabs().setActive(next)
   })
 
-  createEffect(
-    on(
-      () => layout.fileTree.opened(),
-      (opened, prev) => {
-        if (prev === undefined) return
-        if (!isDesktop()) return
-
-        if (opened) {
-          const active = tabs().active()
-          const tab = active === "review" || (!active && hasReview()) ? "changes" : "all"
-          layout.fileTree.setTab(tab)
-        }
-      },
-      { defer: true },
-    ),
-  )
-
   createEffect(() => {
     const id = params.id
     if (!id) return
@@ -1012,20 +1141,11 @@ export default function Page() {
 
   let scrollStateFrame: number | undefined
   let scrollStateTarget: HTMLDivElement | undefined
-  const scrollSpy = createScrollSpy({
-    onActive: (id) => {
-      if (id === store.messageId) return
-      setStore("messageId", id)
-    },
-  })
 
   const updateScrollState = (el: HTMLDivElement) => {
     const max = el.scrollHeight - el.clientHeight
     const overflow = max > 1
-    // If auto-scroll is tracking the bottom, always report bottom: true
-    // to prevent the scroll-down arrow from flashing during height animations
-    // With column-reverse, scrollTop=0 is at the bottom
-    const bottom = !overflow || Math.abs(el.scrollTop) <= 2 || !autoScroll.userScrolled()
+    const bottom = !overflow || el.scrollTop >= max - 2
 
     if (ui.scroll.overflow === overflow && ui.scroll.bottom === bottom) return
     setUi("scroll", { overflow, bottom })
@@ -1048,7 +1168,7 @@ export default function Page() {
 
   const resumeScroll = () => {
     setStore("messageId", undefined)
-    autoScroll.smoothScrollToBottom()
+    autoScroll.forceScrollToBottom()
     clearMessageHash()
 
     const el = scroller
@@ -1068,31 +1188,21 @@ export default function Page() {
     ),
   )
 
-  createEffect(
-    on(
-      sessionKey,
-      () => {
-        scrollSpy.clear()
-      },
-      { defer: true },
-    ),
-  )
-
-  const anchor = (id: string) => `message-${id}`
-
   const setScrollRef = (el: HTMLDivElement | undefined) => {
     scroller = el
     autoScroll.scrollRef(el)
-    scrollSpy.setContainer(el)
     if (el) scheduleScrollState(el)
   }
 
+  const markUserScroll = () => {
+    scrollMark += 1
+  }
+
   createResizeObserver(
     () => content,
     () => {
       const el = scroller
       if (el) scheduleScrollState(el)
-      scrollSpy.markDirty()
     },
   )
 
@@ -1116,15 +1226,15 @@ export default function Page() {
 
       const el = scroller
       const delta = next - dockHeight
-      // With column-reverse, near bottom = scrollTop near 0
-      const stick = el ? Math.abs(el.scrollTop) < 10 + Math.max(0, delta) : false
+      const stick = el
+        ? !autoScroll.userScrolled() || el.scrollHeight - el.clientHeight - el.scrollTop < 10 + Math.max(0, delta)
+        : false
 
       dockHeight = next
 
       if (stick) autoScroll.forceScrollToBottom()
 
       if (el) scheduleScrollState(el)
-      scrollSpy.markDirty()
     },
   )
 
@@ -1152,7 +1262,7 @@ export default function Page() {
 
   onCleanup(() => {
     document.removeEventListener("keydown", handleKeyDown)
-    scrollSpy.destroy()
+    if (reviewFrame !== undefined) cancelAnimationFrame(reviewFrame)
     if (scrollStateFrame !== undefined) cancelAnimationFrame(scrollStateFrame)
   })
 
@@ -1172,9 +1282,9 @@ export default function Page() {
         {/* Session panel */}
         <div
           classList={{
-            "@container relative shrink-0 flex flex-col min-h-0 h-full bg-background-stronger": true,
-            "flex-1": true,
-            "md:flex-none": desktopSidePanelOpen(),
+            "@container relative shrink-0 flex flex-col min-h-0 h-full bg-background-stronger flex-1 md:flex-none": true,
+            "transition-[width] duration-[240ms] ease-[cubic-bezier(0.22,1,0.36,1)] will-change-[width] motion-reduce:transition-none":
+              !size.active() && !ui.reviewSnap,
           }}
           style={{
             width: sessionPanelWidth(),
@@ -1183,49 +1293,47 @@ export default function Page() {
           <div class="flex-1 min-h-0 overflow-hidden">
             <Switch>
               <Match when={params.id}>
-                <MessageTimeline
-                  mobileChanges={mobileChanges()}
-                  mobileFallback={reviewContent({
-                    diffStyle: "unified",
-                    classes: {
-                      root: "pb-8",
-                      header: "px-4",
-                      container: "px-4",
-                    },
-                    loadingClass: "px-4 py-4 text-text-weak",
-                    emptyClass: "h-full pb-30 flex flex-col items-center justify-center text-center gap-6",
-                  })}
-                  scroll={ui.scroll}
-                  onResumeScroll={resumeScroll}
-                  setScrollRef={setScrollRef}
-                  onScheduleScrollState={scheduleScrollState}
-                  onAutoScrollHandleScroll={autoScroll.handleScroll}
-                  onMarkScrollGesture={markScrollGesture}
-                  hasScrollGesture={hasScrollGesture}
-                  isDesktop={isDesktop()}
-                  onScrollSpyScroll={scrollSpy.onScroll}
-                  onTurnBackfillScroll={historyWindow.onScrollerScroll}
-                  onAutoScrollInteraction={autoScroll.handleInteraction}
-                  onPreserveScrollAnchor={autoScroll.preserve}
-                  centered={centered()}
-                  setContentRef={(el) => {
-                    content = el
-                    autoScroll.contentRef(el)
+                <Show when={lastUserMessage()}>
+                  <MessageTimeline
+                    mobileChanges={mobileChanges()}
+                    mobileFallback={reviewContent({
+                      diffStyle: "unified",
+                      classes: {
+                        root: "pb-8",
+                        header: "px-4",
+                        container: "px-4",
+                      },
+                      loadingClass: "px-4 py-4 text-text-weak",
+                      emptyClass: "h-full pb-64 -mt-4 flex flex-col items-center justify-center text-center gap-6",
+                    })}
+                    scroll={ui.scroll}
+                    onResumeScroll={resumeScroll}
+                    setScrollRef={setScrollRef}
+                    onScheduleScrollState={scheduleScrollState}
+                    onAutoScrollHandleScroll={autoScroll.handleScroll}
+                    onMarkScrollGesture={markScrollGesture}
+                    hasScrollGesture={hasScrollGesture}
+                    onUserScroll={markUserScroll}
+                    onTurnBackfillScroll={historyWindow.onScrollerScroll}
+                    onAutoScrollInteraction={autoScroll.handleInteraction}
+                    centered={centered()}
+                    setContentRef={(el) => {
+                      content = el
+                      autoScroll.contentRef(el)
 
-                    const root = scroller
-                    if (root) scheduleScrollState(root)
-                  }}
-                  turnStart={historyWindow.turnStart()}
-                  historyMore={historyMore()}
-                  historyLoading={historyLoading()}
-                  onLoadEarlier={() => {
-                    void historyWindow.loadAndReveal()
-                  }}
-                  renderedUserMessages={historyWindow.renderedUserMessages()}
-                  anchor={anchor}
-                  onRegisterMessage={scrollSpy.register}
-                  onUnregisterMessage={scrollSpy.unregister}
-                />
+                      const root = scroller
+                      if (root) scheduleScrollState(root)
+                    }}
+                    turnStart={historyWindow.turnStart()}
+                    historyMore={historyMore()}
+                    historyLoading={historyLoading()}
+                    onLoadEarlier={() => {
+                      void historyWindow.loadAndReveal()
+                    }}
+                    renderedUserMessages={historyWindow.renderedUserMessages()}
+                    anchor={anchor}
+                  />
+                </Show>
               </Match>
               <Match when={true}>
                 <NewSessionView
@@ -1251,6 +1359,7 @@ export default function Page() {
 
           <SessionComposerRegion
             state={composer}
+            ready={!store.deferRender && messagesReady()}
             centered={centered()}
             inputRef={(el) => {
               inputRef = el
@@ -1268,17 +1377,28 @@ export default function Page() {
           />
 
           <Show when={desktopReviewOpen()}>
-            <ResizeHandle
-              direction="horizontal"
-              size={layout.session.width()}
-              min={450}
-              max={typeof window === "undefined" ? 1000 : window.innerWidth * 0.45}
-              onResize={layout.session.resize}
-            />
+            <div onPointerDown={() => size.start()}>
+              <ResizeHandle
+                direction="horizontal"
+                size={layout.session.width()}
+                min={450}
+                max={typeof window === "undefined" ? 1000 : window.innerWidth * 0.45}
+                onResize={(width) => {
+                  size.touch()
+                  layout.session.resize(width)
+                }}
+              />
+            </div>
           </Show>
         </div>
 
-        <SessionSidePanel reviewPanel={reviewPanel} activeDiff={tree.activeDiff} focusReviewDiff={focusReviewDiff} />
+        <SessionSidePanel
+          reviewPanel={reviewPanel}
+          activeDiff={tree.activeDiff}
+          focusReviewDiff={focusReviewDiff}
+          reviewSnap={ui.reviewSnap}
+          size={size}
+        />
       </div>
 
       <TerminalPanel />

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

@@ -1,29 +1,3 @@
-/**
- * Composer Island migration tracker
- *
- * Goal
- * - Replace the split composer stack (PromptInput + question/permission/todo docks)
- *   with a single morphing ComposerIsland + app runtime adapter.
- *
- * Current status
- * - [x] Storybook prototype with morphing surfaces exists (`packages/ui/src/components/composer-island.tsx`).
- * - [ ] App still renders the existing production stack (`session-composer-region` + `prompt-input`).
- *
- * Feature parity checklist
- * - [ ] Submit pipeline parity (session/worktree/create, optimistic user message, abort, restore on error).
- * - [x] Runtime adapter API boundary in island (`runtime.submit`, `runtime.abort`, lookup, permission/question handlers).
- * - [x] Shell mode wiring parity (single mode source for tray + editor).
- * - [x] Cursor scroll-into-view behavior in island editor.
- * - [x] Attachment parity in island UI: image + PDF support and file picker wiring.
- * - [x] Drag/drop parity in island UI: attachment drop + `file:` text drop into @mention.
- * - [x] Keyboard parity in island UI: mod+u, ctrl+g, ctrl+n/ctrl+p, popover navigation.
- * - [x] Auto-accept + stop/send state parity in island UI.
- * - [x] Async @mention/slash sourcing parity in island via runtime search hooks.
- * - [ ] Context item parity (comment chips/open behavior is in progress; app comment wiring still pending).
- * - [ ] Question flow parity (island submit/reject hooks + sending locks done; app SDK/cache wiring pending).
- * - [ ] Permission flow parity (island responding lock done; app tool-description wiring pending).
- * - [x] Todo parity in island UI (in-progress pulse + auto-scroll active item).
- */
 export { SessionComposerRegion } from "./session-composer-region"
 export { createSessionComposerBlocked, createSessionComposerState } from "./session-composer-state"
 export type { SessionComposerState } from "./session-composer-state"

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

@@ -1,7 +1,7 @@
-import { Show, createMemo, createSignal, createEffect } from "solid-js"
+import { Show, createEffect, createMemo, createSignal, onCleanup } from "solid-js"
+import { createStore } from "solid-js/store"
 import { useParams } from "@solidjs/router"
 import { useSpring } from "@opencode-ai/ui/motion-spring"
-import { useElementHeight } from "@opencode-ai/ui/hooks"
 import { PromptInput } from "@/components/prompt-input"
 import { useLanguage } from "@/context/language"
 import { usePrompt } from "@/context/prompt"
@@ -9,12 +9,11 @@ import { getSessionHandoff, setSessionHandoff } from "@/pages/session/handoff"
 import { SessionPermissionDock } from "@/pages/session/composer/session-permission-dock"
 import { SessionQuestionDock } from "@/pages/session/composer/session-question-dock"
 import type { SessionComposerState } from "@/pages/session/composer/session-composer-state"
-import { SessionTodoDock, COLLAPSED_HEIGHT } from "@/pages/session/composer/session-todo-dock"
-
-const DOCK_SPRING = { visualDuration: 0.3, bounce: 0 }
+import { SessionTodoDock } from "@/pages/session/composer/session-todo-dock"
 
 export function SessionComposerRegion(props: {
   state: SessionComposerState
+  ready: boolean
   centered: boolean
   inputRef: (el: HTMLDivElement) => void
   newSessionWorktree: string
@@ -22,6 +21,23 @@ export function SessionComposerRegion(props: {
   onSubmit: () => void
   onResponseSubmit: () => void
   setPromptDockRef: (el: HTMLDivElement) => void
+  visualDuration?: number
+  bounce?: number
+  dockOpenVisualDuration?: number
+  dockOpenBounce?: number
+  dockCloseVisualDuration?: number
+  dockCloseBounce?: number
+  drawerExpandVisualDuration?: number
+  drawerExpandBounce?: number
+  drawerCollapseVisualDuration?: number
+  drawerCollapseBounce?: number
+  subtitleDuration?: number
+  subtitleTravel?: number
+  subtitleEdge?: number
+  countDuration?: number
+  countMask?: number
+  countMaskHeight?: number
+  countWidthDuration?: number
 }) {
   const params = useParams()
   const prompt = usePrompt()
@@ -47,15 +63,73 @@ export function SessionComposerRegion(props: {
     setSessionHandoff(sessionKey(), { prompt: previewPrompt() })
   })
 
-  const open = createMemo(() => props.state.dock() && !props.state.closing())
-  const progress = useSpring(
-    () => (open() ? 1 : 0),
-    DOCK_SPRING,
+  const [gate, setGate] = createStore({
+    ready: false,
+  })
+  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
+    }
+  }
+
+  createEffect(() => {
+    sessionKey()
+    const ready = props.ready
+    const delay = 140
+
+    clear()
+    setGate("ready", false)
+    if (!ready) return
+
+    frame = requestAnimationFrame(() => {
+      frame = undefined
+      timer = window.setTimeout(() => {
+        setGate("ready", true)
+        timer = undefined
+      }, delay)
+    })
+  })
+
+  onCleanup(clear)
+
+  const open = createMemo(() => gate.ready && props.state.dock() && !props.state.closing())
+  const config = createMemo(() =>
+    open()
+      ? {
+          visualDuration: props.dockOpenVisualDuration ?? props.visualDuration ?? 0.3,
+          bounce: props.dockOpenBounce ?? props.bounce ?? 0,
+        }
+      : {
+          visualDuration: props.dockCloseVisualDuration ?? props.visualDuration ?? 0.3,
+          bounce: props.dockCloseBounce ?? props.bounce ?? 0,
+        },
   )
-  const dock = createMemo(() => props.state.dock() || progress() > 0.001)
+  const progress = useSpring(() => (open() ? 1 : 0), config)
+  const value = createMemo(() => Math.max(0, Math.min(1, progress())))
+  const [height, setHeight] = createSignal(320)
+  const dock = createMemo(() => (gate.ready && props.state.dock()) || value() > 0.001)
+  const full = createMemo(() => Math.max(78, height()))
   const [contentRef, setContentRef] = createSignal<HTMLDivElement>()
-  const height = useElementHeight(contentRef, 320)
-  const full = createMemo(() => Math.max(COLLAPSED_HEIGHT, height()))
+
+  createEffect(() => {
+    const el = contentRef()
+    if (!el) return
+    const update = () => {
+      setHeight(el.getBoundingClientRect().height)
+    }
+    update()
+    const observer = new ResizeObserver(update)
+    observer.observe(el)
+    onCleanup(() => observer.disconnect())
+  })
 
   return (
     <div
@@ -105,10 +179,10 @@ export function SessionComposerRegion(props: {
               <div
                 classList={{
                   "overflow-hidden": true,
-                  "pointer-events-none": progress() < 0.98,
+                  "pointer-events-none": value() < 0.98,
                 }}
                 style={{
-                  "max-height": `${full() * progress()}px`,
+                  "max-height": `${full() * value()}px`,
                 }}
               >
                 <div ref={setContentRef}>
@@ -117,7 +191,20 @@ export function SessionComposerRegion(props: {
                     title={language.t("session.todo.title")}
                     collapseLabel={language.t("session.todo.collapse")}
                     expandLabel={language.t("session.todo.expand")}
-                    dockProgress={progress()}
+                    dockProgress={value()}
+                    visualDuration={props.visualDuration}
+                    bounce={props.bounce}
+                    expandVisualDuration={props.drawerExpandVisualDuration}
+                    expandBounce={props.drawerExpandBounce}
+                    collapseVisualDuration={props.drawerCollapseVisualDuration}
+                    collapseBounce={props.drawerCollapseBounce}
+                    subtitleDuration={props.subtitleDuration}
+                    subtitleTravel={props.subtitleTravel}
+                    subtitleEdge={props.subtitleEdge}
+                    countDuration={props.countDuration}
+                    countMask={props.countMask}
+                    countMaskHeight={props.countMaskHeight}
+                    countWidthDuration={props.countWidthDuration}
                   />
                 </div>
               </div>
@@ -127,7 +214,7 @@ export function SessionComposerRegion(props: {
                 "relative z-10": true,
               }}
               style={{
-                "margin-top": `${-36 * progress()}px`,
+                "margin-top": `${-36 * value()}px`,
               }}
             >
               <PromptInput

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

@@ -29,11 +29,7 @@ export function createSessionComposerBlocked() {
   })
 }
 
-export function createSessionComposerState(
-  options?: {
-    closeMs?: number | (() => number)
-  },
-) {
+export function createSessionComposerState(options?: { closeMs?: number | (() => number) }) {
   const params = useParams()
   const sdk = useSDK()
   const sync = useSync()

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

@@ -6,15 +6,9 @@ import { IconButton } from "@opencode-ai/ui/icon-button"
 import { useSpring } from "@opencode-ai/ui/motion-spring"
 import { TextReveal } from "@opencode-ai/ui/text-reveal"
 import { TextStrikethrough } from "@opencode-ai/ui/text-strikethrough"
-import { useElementHeight } from "@opencode-ai/ui/hooks"
 import { Index, createEffect, createMemo, createSignal, on, onCleanup } from "solid-js"
 import { createStore } from "solid-js/store"
 
-const COLLAPSE_SPRING = { visualDuration: 0.3, bounce: 0 }
-export const COLLAPSED_HEIGHT = 78
-const SUBTITLE = { duration: 600, travel: 25, edge: 17 }
-const COUNT = { duration: 600, mask: 18, maskHeight: 0, widthDuration: 560 }
-
 function dot(status: Todo["status"]) {
   if (status !== "in_progress") return undefined
   return (
@@ -46,6 +40,19 @@ export function SessionTodoDock(props: {
   collapseLabel: string
   expandLabel: string
   dockProgress?: number
+  visualDuration?: number
+  bounce?: number
+  expandVisualDuration?: number
+  expandBounce?: number
+  collapseVisualDuration?: number
+  collapseBounce?: number
+  subtitleDuration?: number
+  subtitleTravel?: number
+  subtitleEdge?: number
+  countDuration?: number
+  countMask?: number
+  countMaskHeight?: number
+  countWidthDuration?: number
 }) {
   const [store, setStore] = createStore({
     collapsed: false,
@@ -66,12 +73,39 @@ export function SessionTodoDock(props: {
   )
 
   const preview = createMemo(() => active()?.content ?? "")
-  const collapse = useSpring(() => (store.collapsed ? 1 : 0), COLLAPSE_SPRING)
-  const shut = createMemo(() => 1 - (props.dockProgress ?? 1))
-  const hide = createMemo(() => Math.max(collapse(), shut()))
+  const config = createMemo(() =>
+    store.collapsed
+      ? {
+          visualDuration: props.collapseVisualDuration ?? props.visualDuration ?? 0.3,
+          bounce: props.collapseBounce ?? props.bounce ?? 0,
+        }
+      : {
+          visualDuration: props.expandVisualDuration ?? props.visualDuration ?? 0.3,
+          bounce: props.expandBounce ?? props.bounce ?? 0,
+        },
+  )
+  const collapse = useSpring(() => (store.collapsed ? 1 : 0), config)
+  const dock = createMemo(() => Math.max(0, Math.min(1, props.dockProgress ?? 1)))
+  const shut = createMemo(() => 1 - dock())
+  const value = createMemo(() => Math.max(0, Math.min(1, collapse())))
+  const hide = createMemo(() => Math.max(value(), shut()))
+  const off = createMemo(() => hide() > 0.98)
+  const turn = createMemo(() => Math.max(0, Math.min(1, value())))
+  const [height, setHeight] = createSignal(320)
+  const full = createMemo(() => Math.max(78, height()))
   let contentRef: HTMLDivElement | undefined
-  const height = useElementHeight(() => contentRef, 320)
-  const full = createMemo(() => Math.max(COLLAPSED_HEIGHT, height()))
+
+  createEffect(() => {
+    const el = contentRef
+    if (!el) return
+    const update = () => {
+      setHeight(el.getBoundingClientRect().height)
+    }
+    update()
+    const observer = new ResizeObserver(update)
+    observer.observe(el)
+    onCleanup(() => observer.disconnect())
+  })
 
   return (
     <DockTray
@@ -79,7 +113,7 @@ export function SessionTodoDock(props: {
       style={{
         "overflow-x": "visible",
         "overflow-y": "hidden",
-        "max-height": `${Math.max(COLLAPSED_HEIGHT, full() - collapse() * (full() - COLLAPSED_HEIGHT))}px`,
+        "max-height": `${Math.max(78, full() - value() * (full() - 78))}px`,
       }}
     >
       <div ref={contentRef}>
@@ -99,12 +133,12 @@ export function SessionTodoDock(props: {
             class="text-14-regular text-text-strong cursor-default inline-flex items-baseline shrink-0 whitespace-nowrap overflow-visible"
             aria-label={label()}
             style={{
-              "--tool-motion-odometer-ms": `${COUNT.duration}ms`,
-              "--tool-motion-mask": `${COUNT.mask}%`,
-              "--tool-motion-mask-height": `${COUNT.maskHeight}px`,
-              "--tool-motion-spring-ms": `${COUNT.widthDuration}ms`,
-              opacity: `${1 - shut()}`,
-              filter: shut() > 0.01 ? `blur(${shut() * 2}px)` : "none",
+              "--tool-motion-odometer-ms": `${props.countDuration ?? 600}ms`,
+              "--tool-motion-mask": `${props.countMask ?? 18}%`,
+              "--tool-motion-mask-height": `${props.countMaskHeight ?? 0}px`,
+              "--tool-motion-spring-ms": `${props.countWidthDuration ?? 560}ms`,
+              opacity: `${Math.max(0, Math.min(1, 1 - shut()))}`,
+              filter: `blur(${Math.max(0, Math.min(1, shut())) * 2}px)`,
             }}
           >
             <AnimatedNumber value={done()} />
@@ -123,9 +157,9 @@ export function SessionTodoDock(props: {
             <TextReveal
               class="text-14-regular text-text-base cursor-default"
               text={store.collapsed ? preview() : undefined}
-              duration={SUBTITLE.duration}
-              travel={SUBTITLE.travel}
-              edge={SUBTITLE.edge}
+              duration={props.subtitleDuration ?? 600}
+              travel={props.subtitleTravel ?? 25}
+              edge={props.subtitleEdge ?? 17}
               spring="cubic-bezier(0.34, 1, 0.64, 1)"
               springSoft="cubic-bezier(0.34, 1, 0.64, 1)"
               growOnly
@@ -139,7 +173,7 @@ export function SessionTodoDock(props: {
               icon="chevron-down"
               size="normal"
               variant="ghost"
-              style={{ transform: `rotate(${collapse() * 180}deg)` }}
+              style={{ transform: `rotate(${turn() * 180}deg)` }}
               onMouseDown={(event) => {
                 event.preventDefault()
                 event.stopPropagation()
@@ -155,15 +189,14 @@ export function SessionTodoDock(props: {
 
         <div
           data-slot="session-todo-list"
-          class="pb-2"
-          aria-hidden={store.collapsed}
+          aria-hidden={store.collapsed || off()}
           classList={{
             "pointer-events-none": hide() > 0.1,
           }}
           style={{
-            opacity: `${1 - hide()}`,
-            filter: hide() > 0.01 ? `blur(${hide() * 2}px)` : "none",
-            visibility: hide() > 0.98 ? "hidden" : "visible",
+            visibility: off() ? "hidden" : "visible",
+            opacity: `${Math.max(0, Math.min(1, 1 - hide()))}`,
+            filter: `blur(${Math.max(0, Math.min(1, hide())) * 2}px)`,
           }}
         >
           <TodoList todos={props.todos} open={!store.collapsed} />
@@ -249,7 +282,7 @@ function TodoList(props: { todos: Todo[]; open: boolean }) {
                 "--checkbox-align": "flex-start",
                 "--checkbox-offset": "1px",
                 transition: "opacity 220ms var(--tool-motion-ease, cubic-bezier(0.22, 1, 0.36, 1))",
-                opacity: todo().status === "pending" ? "0.5" : "1",
+                opacity: todo().status === "pending" ? "0.94" : "1",
               }}
             >
               <TextStrikethrough
@@ -259,11 +292,12 @@ function TodoList(props: { todos: Todo[]; open: boolean }) {
                 style={{
                   "line-height": "var(--line-height-normal)",
                   transition:
-                    "color 220ms var(--tool-motion-ease, cubic-bezier(0.22, 1, 0.36, 1))",
+                    "color 220ms var(--tool-motion-ease, cubic-bezier(0.22, 1, 0.36, 1)), opacity 220ms var(--tool-motion-ease, cubic-bezier(0.22, 1, 0.36, 1))",
                   color:
                     todo().status === "completed" || todo().status === "cancelled"
                       ? "var(--text-weak)"
                       : "var(--text-strong)",
+                  opacity: todo().status === "pending" ? "0.92" : "1",
                 }}
               />
             </Checkbox>

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

@@ -1,4 +1,5 @@
-import { batch } from "solid-js"
+import { batch, createEffect, on, onCleanup, onMount, type Accessor } from "solid-js"
+import { createStore } from "solid-js/store"
 
 export const focusTerminalById = (id: string) => {
   const wrapper = document.getElementById(`terminal-wrapper-${id}`)
@@ -69,3 +70,104 @@ export const getTabReorderIndex = (tabs: readonly string[], from: string, to: st
   if (fromIndex === -1 || toIndex === -1 || fromIndex === toIndex) return undefined
   return toIndex
 }
+
+export const createSizing = () => {
+  const [state, setState] = createStore({ active: false })
+  let t: number | undefined
+
+  const stop = () => {
+    if (t !== undefined) {
+      clearTimeout(t)
+      t = undefined
+    }
+    setState("active", false)
+  }
+
+  const start = () => {
+    if (t !== undefined) {
+      clearTimeout(t)
+      t = undefined
+    }
+    setState("active", true)
+  }
+
+  onMount(() => {
+    window.addEventListener("pointerup", stop)
+    window.addEventListener("pointercancel", stop)
+    window.addEventListener("blur", stop)
+    onCleanup(() => {
+      window.removeEventListener("pointerup", stop)
+      window.removeEventListener("pointercancel", stop)
+      window.removeEventListener("blur", stop)
+    })
+  })
+
+  onCleanup(() => {
+    if (t !== undefined) clearTimeout(t)
+  })
+
+  return {
+    active: () => state.active,
+    start,
+    touch() {
+      start()
+      t = window.setTimeout(stop, 120)
+    },
+  }
+}
+
+export type Sizing = ReturnType<typeof createSizing>
+
+export const createPresence = (open: Accessor<boolean>, wait = 200) => {
+  const [state, setState] = createStore({
+    show: open(),
+    open: open(),
+  })
+  let frame: number | undefined
+  let t: number | undefined
+
+  const clear = () => {
+    if (frame !== undefined) {
+      cancelAnimationFrame(frame)
+      frame = undefined
+    }
+    if (t !== undefined) {
+      clearTimeout(t)
+      t = undefined
+    }
+  }
+
+  createEffect(
+    on(open, (next) => {
+      clear()
+
+      if (next) {
+        if (state.show) {
+          setState("open", true)
+          return
+        }
+
+        setState({ show: true, open: false })
+        frame = requestAnimationFrame(() => {
+          frame = undefined
+          setState("open", true)
+        })
+        return
+      }
+
+      if (!state.show) return
+      setState("open", false)
+      t = window.setTimeout(() => {
+        t = undefined
+        setState("show", false)
+      }, wait)
+    }),
+  )
+
+  onCleanup(clear)
+
+  return {
+    show: () => state.show,
+    open: () => state.open,
+  }
+}

packages/app/src/pages/session/message-gesture.test.ts

@@ -49,11 +49,11 @@ describe("shouldMarkBoundaryGesture", () => {
     ).toBe(true)
   })
 
-  test("does not mark when scroller can consume movement", () => {
+  test("does not mark when nested scroller can consume movement", () => {
     expect(
       shouldMarkBoundaryGesture({
         delta: 20,
-        scrollTop: 300,
+        scrollTop: 200,
         scrollHeight: 1000,
         clientHeight: 400,
       }),

packages/app/src/pages/session/message-gesture.ts

@@ -14,8 +14,8 @@ export const shouldMarkBoundaryGesture = (input: {
   if (max <= 1) return true
   if (!input.delta) return false
 
-  const top = Math.max(0, Math.min(max, input.scrollTop))
-  if (input.delta < 0) return -input.delta > top
-  const bottom = max - top
-  return input.delta > bottom
+  if (input.delta < 0) return input.scrollTop + input.delta <= 0
+
+  const remaining = max - input.scrollTop
+  return input.delta > remaining
 }

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

@@ -1,31 +1,28 @@
-import {
-  For,
-  Index,
-  createEffect,
-  createMemo,
-  createSignal,
-  on,
-  onCleanup,
-  Show,
-  startTransition,
-  type JSX,
-} from "solid-js"
-import { createStore } from "solid-js/store"
-import { useParams } from "@solidjs/router"
+import { For, createEffect, createMemo, on, onCleanup, Show, Index, type JSX } from "solid-js"
+import { createStore, produce } from "solid-js/store"
+import { useNavigate, useParams } from "@solidjs/router"
 import { Button } from "@opencode-ai/ui/button"
 import { FileIcon } from "@opencode-ai/ui/file-icon"
 import { Icon } from "@opencode-ai/ui/icon"
+import { IconButton } from "@opencode-ai/ui/icon-button"
+import { DropdownMenu } from "@opencode-ai/ui/dropdown-menu"
+import { Dialog } from "@opencode-ai/ui/dialog"
+import { InlineInput } from "@opencode-ai/ui/inline-input"
+import { Spinner } from "@opencode-ai/ui/spinner"
 import { SessionTurn } from "@opencode-ai/ui/session-turn"
 import { ScrollView } from "@opencode-ai/ui/scroll-view"
 import type { AssistantMessage, Message as MessageType, Part, TextPart, UserMessage } from "@opencode-ai/sdk/v2"
+import { showToast } from "@opencode-ai/ui/toast"
 import { Binary } from "@opencode-ai/util/binary"
 import { getFilename } from "@opencode-ai/util/path"
 import { shouldMarkBoundaryGesture, normalizeWheelDelta } from "@/pages/session/message-gesture"
+import { SessionContextUsage } from "@/components/session-context-usage"
+import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { useLanguage } from "@/context/language"
 import { useSettings } from "@/context/settings"
+import { useSDK } from "@/context/sdk"
 import { useSync } from "@/context/sync"
 import { parseCommentNote, readCommentMetadata } from "@/utils/comment-note"
-import { SessionTimelineHeader } from "@/pages/session/session-timeline-header"
 
 type MessageComment = {
   path: string
@@ -37,9 +34,7 @@ type MessageComment = {
 }
 
 const emptyMessages: MessageType[] = []
-
-const isDefaultSessionTitle = (title?: string) =>
-  !!title && /^(New session - |Child session - )\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}Z$/.test(title)
+const idle = { type: "idle" as const }
 
 const messageComments = (parts: Part[]): MessageComment[] =>
   parts.flatMap((part) => {
@@ -116,8 +111,6 @@ function createTimelineStaging(input: TimelineStageInput) {
     completedSession: "",
     count: 0,
   })
-  const [readySession, setReadySession] = createSignal("")
-  let active = ""
 
   const stagedCount = createMemo(() => {
     const total = input.messages().length
@@ -142,46 +135,23 @@ function createTimelineStaging(input: TimelineStageInput) {
     cancelAnimationFrame(frame)
     frame = undefined
   }
-  const scheduleReady = (sessionKey: string) => {
-    if (input.sessionKey() !== sessionKey) return
-    if (readySession() === sessionKey) return
-    setReadySession(sessionKey)
-  }
 
   createEffect(
     on(
       () => [input.sessionKey(), input.turnStart() > 0, input.messages().length] as const,
       ([sessionKey, isWindowed, total]) => {
-        const switched = active !== sessionKey
-        if (switched) {
-          active = sessionKey
-          setReadySession("")
-        }
-
-        const staging = state.activeSession === sessionKey && state.completedSession !== sessionKey
-        const shouldStage = isWindowed && total > input.config.init && state.completedSession !== sessionKey
-
-        if (staging && !switched && shouldStage && frame !== undefined) return
-
         cancel()
-
-        if (shouldStage) setReadySession("")
+        const shouldStage =
+          isWindowed &&
+          total > input.config.init &&
+          state.completedSession !== sessionKey &&
+          state.activeSession !== sessionKey
         if (!shouldStage) {
-          setState({
-            activeSession: "",
-            completedSession: isWindowed ? sessionKey : state.completedSession,
-            count: total,
-          })
-          if (total <= 0) {
-            setReadySession("")
-            return
-          }
-          if (readySession() !== sessionKey) scheduleReady(sessionKey)
+          setState({ activeSession: "", count: total })
           return
         }
 
         let count = Math.min(total, input.config.init)
-        if (staging) count = Math.min(total, Math.max(count, state.count))
         setState({ activeSession: sessionKey, count })
 
         const step = () => {
@@ -191,11 +161,10 @@ function createTimelineStaging(input: TimelineStageInput) {
           }
           const currentTotal = input.messages().length
           count = Math.min(currentTotal, count + input.config.batch)
-          startTransition(() => setState("count", count))
+          setState("count", count)
           if (count >= currentTotal) {
             setState({ completedSession: sessionKey, activeSession: "" })
             frame = undefined
-            scheduleReady(sessionKey)
             return
           }
           frame = requestAnimationFrame(step)
@@ -209,12 +178,9 @@ function createTimelineStaging(input: TimelineStageInput) {
     const key = input.sessionKey()
     return state.activeSession === key && state.completedSession !== key
   })
-  const ready = createMemo(() => readySession() === input.sessionKey())
 
-  onCleanup(() => {
-    cancel()
-  })
-  return { messages: stagedUserMessages, isStaging, ready }
+  onCleanup(cancel)
+  return { messages: stagedUserMessages, isStaging }
 }
 
 export function MessageTimeline(props: {
@@ -227,11 +193,9 @@ export function MessageTimeline(props: {
   onAutoScrollHandleScroll: () => void
   onMarkScrollGesture: (target?: EventTarget | null) => void
   hasScrollGesture: () => boolean
-  isDesktop: boolean
-  onScrollSpyScroll: () => void
+  onUserScroll: () => void
   onTurnBackfillScroll: () => void
   onAutoScrollInteraction: (event: MouseEvent) => void
-  onPreserveScrollAnchor: (target: HTMLElement) => void
   centered: boolean
   setContentRef: (el: HTMLDivElement) => void
   turnStart: number
@@ -240,25 +204,18 @@ export function MessageTimeline(props: {
   onLoadEarlier: () => void
   renderedUserMessages: UserMessage[]
   anchor: (id: string) => string
-  onRegisterMessage: (el: HTMLDivElement, id: string) => void
-  onUnregisterMessage: (id: string) => void
 }) {
   let touchGesture: number | undefined
 
   const params = useParams()
+  const navigate = useNavigate()
+  const sdk = useSDK()
   const sync = useSync()
   const settings = useSettings()
+  const dialog = useDialog()
   const language = useLanguage()
 
-  const trigger = (target: EventTarget | null) => {
-    const next =
-      target instanceof Element
-        ? target.closest('[data-slot="collapsible-trigger"], [data-slot="accordion-trigger"], [data-scroll-preserve]')
-        : undefined
-    if (!(next instanceof HTMLElement)) return
-    return next
-  }
-
+  const rendered = createMemo(() => props.renderedUserMessages.map((message) => message.id))
   const sessionKey = createMemo(() => `${params.dir}${params.id ? "/" + params.id : ""}`)
   const sessionID = createMemo(() => params.id)
   const sessionMessages = createMemo(() => {
@@ -271,20 +228,62 @@ export function MessageTimeline(props: {
       (item): item is AssistantMessage => item.role === "assistant" && typeof item.time.completed !== "number",
     ),
   )
-  const sessionStatus = createMemo(() => sync.data.session_status[sessionID() ?? ""]?.type ?? "idle")
+  const sessionStatus = createMemo(() => {
+    const id = sessionID()
+    if (!id) return idle
+    return sync.data.session_status[id] ?? idle
+  })
+  const working = createMemo(() => !!pending() || sessionStatus().type !== "idle")
+
+  const [slot, setSlot] = createStore({
+    open: false,
+    show: false,
+    fade: false,
+  })
+
+  let f: number | undefined
+  const clear = () => {
+    if (f !== undefined) window.clearTimeout(f)
+    f = undefined
+  }
+
+  onCleanup(clear)
+  createEffect(
+    on(
+      working,
+      (on, prev) => {
+        clear()
+        if (on) {
+          setSlot({ open: true, show: true, fade: false })
+          return
+        }
+        if (prev) {
+          setSlot({ open: false, show: true, fade: true })
+          f = window.setTimeout(() => setSlot({ show: false, fade: false }), 260)
+          return
+        }
+        setSlot({ open: false, show: false, fade: false })
+      },
+      { defer: true },
+    ),
+  )
   const activeMessageID = createMemo(() => {
-    const messages = sessionMessages()
-    const message = pending()
-    if (message?.parentID) {
-      const result = Binary.search(messages, message.parentID, (item) => item.id)
-      const parent = result.found ? messages[result.index] : messages.find((item) => item.id === message.parentID)
-      if (parent?.role === "user") return parent.id
+    const parentID = pending()?.parentID
+    if (parentID) {
+      const messages = sessionMessages()
+      const result = Binary.search(messages, parentID, (message) => message.id)
+      const message = result.found ? messages[result.index] : messages.find((item) => item.id === parentID)
+      if (message && message.role === "user") return message.id
     }
 
-    if (sessionStatus() === "idle") return undefined
-    for (let i = messages.length - 1; i >= 0; i--) {
-      if (messages[i].role === "user") return messages[i].id
+    const status = sessionStatus()
+    if (status.type !== "idle") {
+      const messages = sessionMessages()
+      for (let i = messages.length - 1; i >= 0; i--) {
+        if (messages[i].role === "user") return messages[i].id
+      }
     }
+
     return undefined
   })
   const info = createMemo(() => {
@@ -292,19 +291,9 @@ export function MessageTimeline(props: {
     if (!id) return
     return sync.session.get(id)
   })
-  const titleValue = createMemo(() => {
-    const title = info()?.title
-    if (!title) return
-    if (isDefaultSessionTitle(title)) return language.t("command.session.new")
-    return title
-  })
-  const defaultTitle = createMemo(() => isDefaultSessionTitle(info()?.title))
-  const headerTitle = createMemo(
-    () => titleValue() ?? (props.renderedUserMessages.length ? language.t("command.session.new") : undefined),
-  )
-  const placeholderTitle = createMemo(() => defaultTitle() || (!info()?.title && props.renderedUserMessages.length > 0))
+  const titleValue = createMemo(() => info()?.title)
   const parentID = createMemo(() => info()?.parentID)
-  const showHeader = createMemo(() => !!(headerTitle() || parentID()))
+  const showHeader = createMemo(() => !!(titleValue() || parentID()))
   const stageCfg = { init: 1, batch: 3 }
   const staging = createTimelineStaging({
     sessionKey,
@@ -312,7 +301,212 @@ export function MessageTimeline(props: {
     messages: () => props.renderedUserMessages,
     config: stageCfg,
   })
-  const rendered = createMemo(() => staging.messages().map((message) => message.id))
+
+  const [title, setTitle] = createStore({
+    draft: "",
+    editing: false,
+    saving: false,
+    menuOpen: false,
+    pendingRename: false,
+  })
+  let titleRef: HTMLInputElement | undefined
+
+  const errorMessage = (err: unknown) => {
+    if (err && typeof err === "object" && "data" in err) {
+      const data = (err as { data?: { message?: string } }).data
+      if (data?.message) return data.message
+    }
+    if (err instanceof Error) return err.message
+    return language.t("common.requestFailed")
+  }
+
+  createEffect(
+    on(
+      sessionKey,
+      () => setTitle({ draft: "", editing: false, saving: false, menuOpen: false, pendingRename: false }),
+      { defer: true },
+    ),
+  )
+
+  const openTitleEditor = () => {
+    if (!sessionID()) return
+    setTitle({ editing: true, draft: titleValue() ?? "" })
+    requestAnimationFrame(() => {
+      titleRef?.focus()
+      titleRef?.select()
+    })
+  }
+
+  const closeTitleEditor = () => {
+    if (title.saving) return
+    setTitle({ editing: false, saving: false })
+  }
+
+  const saveTitleEditor = async () => {
+    const id = sessionID()
+    if (!id) return
+    if (title.saving) return
+
+    const next = title.draft.trim()
+    if (!next || next === (titleValue() ?? "")) {
+      setTitle({ editing: false, saving: false })
+      return
+    }
+
+    setTitle("saving", true)
+    await sdk.client.session
+      .update({ sessionID: id, title: next })
+      .then(() => {
+        sync.set(
+          produce((draft) => {
+            const index = draft.session.findIndex((s) => s.id === id)
+            if (index !== -1) draft.session[index].title = next
+          }),
+        )
+        setTitle({ editing: false, saving: false })
+      })
+      .catch((err) => {
+        setTitle("saving", false)
+        showToast({
+          title: language.t("common.requestFailed"),
+          description: errorMessage(err),
+        })
+      })
+  }
+
+  const navigateAfterSessionRemoval = (sessionID: string, parentID?: string, nextSessionID?: string) => {
+    if (params.id !== sessionID) return
+    if (parentID) {
+      navigate(`/${params.dir}/session/${parentID}`)
+      return
+    }
+    if (nextSessionID) {
+      navigate(`/${params.dir}/session/${nextSessionID}`)
+      return
+    }
+    navigate(`/${params.dir}/session`)
+  }
+
+  const archiveSession = async (sessionID: string) => {
+    const session = sync.session.get(sessionID)
+    if (!session) return
+
+    const sessions = sync.data.session ?? []
+    const index = sessions.findIndex((s) => s.id === sessionID)
+    const nextSession = index === -1 ? undefined : (sessions[index + 1] ?? sessions[index - 1])
+
+    await sdk.client.session
+      .update({ sessionID, time: { archived: Date.now() } })
+      .then(() => {
+        sync.set(
+          produce((draft) => {
+            const index = draft.session.findIndex((s) => s.id === sessionID)
+            if (index !== -1) draft.session.splice(index, 1)
+          }),
+        )
+        navigateAfterSessionRemoval(sessionID, session.parentID, nextSession?.id)
+      })
+      .catch((err) => {
+        showToast({
+          title: language.t("common.requestFailed"),
+          description: errorMessage(err),
+        })
+      })
+  }
+
+  const deleteSession = async (sessionID: string) => {
+    const session = sync.session.get(sessionID)
+    if (!session) return false
+
+    const sessions = (sync.data.session ?? []).filter((s) => !s.parentID && !s.time?.archived)
+    const index = sessions.findIndex((s) => s.id === sessionID)
+    const nextSession = index === -1 ? undefined : (sessions[index + 1] ?? sessions[index - 1])
+
+    const result = await sdk.client.session
+      .delete({ sessionID })
+      .then((x) => x.data)
+      .catch((err) => {
+        showToast({
+          title: language.t("session.delete.failed.title"),
+          description: errorMessage(err),
+        })
+        return false
+      })
+
+    if (!result) return false
+
+    sync.set(
+      produce((draft) => {
+        const removed = new Set<string>([sessionID])
+
+        const byParent = new Map<string, string[]>()
+        for (const item of draft.session) {
+          const parentID = item.parentID
+          if (!parentID) continue
+          const existing = byParent.get(parentID)
+          if (existing) {
+            existing.push(item.id)
+            continue
+          }
+          byParent.set(parentID, [item.id])
+        }
+
+        const stack = [sessionID]
+        while (stack.length) {
+          const parentID = stack.pop()
+          if (!parentID) continue
+
+          const children = byParent.get(parentID)
+          if (!children) continue
+
+          for (const child of children) {
+            if (removed.has(child)) continue
+            removed.add(child)
+            stack.push(child)
+          }
+        }
+
+        draft.session = draft.session.filter((s) => !removed.has(s.id))
+      }),
+    )
+
+    navigateAfterSessionRemoval(sessionID, session.parentID, nextSession?.id)
+    return true
+  }
+
+  const navigateParent = () => {
+    const id = parentID()
+    if (!id) return
+    navigate(`/${params.dir}/session/${id}`)
+  }
+
+  function DialogDeleteSession(props: { sessionID: string }) {
+    const name = createMemo(() => sync.session.get(props.sessionID)?.title ?? language.t("command.session.new"))
+    const handleDelete = async () => {
+      await deleteSession(props.sessionID)
+      dialog.close()
+    }
+
+    return (
+      <Dialog title={language.t("session.delete.title")} fit>
+        <div class="flex flex-col gap-4 pl-6 pr-2.5 pb-3">
+          <div class="flex flex-col gap-1">
+            <span class="text-14-regular text-text-strong">
+              {language.t("session.delete.confirm", { name: name() })}
+            </span>
+          </div>
+          <div class="flex justify-end gap-2">
+            <Button variant="ghost" size="large" onClick={() => dialog.close()}>
+              {language.t("common.cancel")}
+            </Button>
+            <Button variant="primary" size="large" onClick={handleDelete}>
+              {language.t("session.delete.button")}
+            </Button>
+          </div>
+        </div>
+      </Dialog>
+    )
+  }
 
   return (
     <Show
@@ -336,16 +530,6 @@ export function MessageTimeline(props: {
             <Icon name="arrow-down-to-line" />
           </button>
         </div>
-        <SessionTimelineHeader
-          centered={props.centered}
-          showHeader={showHeader}
-          sessionKey={sessionKey}
-          sessionID={sessionID}
-          parentID={parentID}
-          titleValue={titleValue}
-          headerTitle={headerTitle}
-          placeholderTitle={placeholderTitle}
-        />
         <ScrollView
           viewportRef={props.setScrollRef}
           onWheel={(e) => {
@@ -380,41 +564,163 @@ export function MessageTimeline(props: {
             touchGesture = undefined
           }}
           onPointerDown={(e) => {
-            const next = trigger(e.target)
-            if (next) props.onPreserveScrollAnchor(next)
-
             if (e.target !== e.currentTarget) return
             props.onMarkScrollGesture(e.currentTarget)
           }}
-          onKeyDown={(e) => {
-            if (e.key !== "Enter" && e.key !== " ") return
-            const next = trigger(e.target)
-            if (!next) return
-            props.onPreserveScrollAnchor(next)
-          }}
           onScroll={(e) => {
             props.onScheduleScrollState(e.currentTarget)
             props.onTurnBackfillScroll()
             if (!props.hasScrollGesture()) return
+            props.onUserScroll()
             props.onAutoScrollHandleScroll()
             props.onMarkScrollGesture(e.currentTarget)
-            if (props.isDesktop) props.onScrollSpyScroll()
-          }}
-          onClick={(e) => {
-            props.onAutoScrollInteraction(e)
           }}
+          onClick={props.onAutoScrollInteraction}
           class="relative min-w-0 w-full h-full"
           style={{
-            "--session-title-height": showHeader() ? "72px" : "0px",
+            "--session-title-height": showHeader() ? "40px" : "0px",
             "--sticky-accordion-top": showHeader() ? "48px" : "0px",
           }}
         >
-          <div>
+          <div ref={props.setContentRef} class="min-w-0 w-full">
+            <Show when={showHeader()}>
+              <div
+                data-session-title
+                classList={{
+                  "sticky top-0 z-30 bg-[linear-gradient(to_bottom,var(--background-stronger)_48px,transparent)]": true,
+                  "w-full": true,
+                  "pb-4": true,
+                  "pl-2 pr-3 md:pl-4 md:pr-3": true,
+                  "md:max-w-200 md:mx-auto 2xl:max-w-[1000px]": props.centered,
+                }}
+              >
+                <div class="h-12 w-full flex items-center justify-between gap-2">
+                  <div class="flex items-center gap-1 min-w-0 flex-1 pr-3">
+                    <Show when={parentID()}>
+                      <IconButton
+                        tabIndex={-1}
+                        icon="arrow-left"
+                        variant="ghost"
+                        onClick={navigateParent}
+                        aria-label={language.t("common.goBack")}
+                      />
+                    </Show>
+                    <div class="flex items-center min-w-0 grow-1">
+                      <div
+                        class="shrink-0 flex items-center justify-center overflow-hidden transition-[width,margin] duration-300 ease-[cubic-bezier(0.22,1,0.36,1)]"
+                        style={{
+                          width: slot.open ? "16px" : "0px",
+                          "margin-right": slot.open ? "8px" : "0px",
+                        }}
+                        aria-hidden="true"
+                      >
+                        <Show when={slot.show}>
+                          <div
+                            class="transition-opacity duration-200 ease-out"
+                            classList={{
+                              "opacity-0": slot.fade,
+                            }}
+                          >
+                            <Spinner class="size-4" style={{ color: "var(--icon-interactive-base)" }} />
+                          </div>
+                        </Show>
+                      </div>
+                      <Show when={titleValue() || title.editing}>
+                        <Show
+                          when={title.editing}
+                          fallback={
+                            <h1
+                              class="text-14-medium text-text-strong truncate grow-1 min-w-0"
+                              onDblClick={openTitleEditor}
+                            >
+                              {titleValue()}
+                            </h1>
+                          }
+                        >
+                          <InlineInput
+                            ref={(el) => {
+                              titleRef = el
+                            }}
+                            value={title.draft}
+                            disabled={title.saving}
+                            class="text-14-medium text-text-strong grow-1 min-w-0 rounded-[6px]"
+                            style={{ "--inline-input-shadow": "var(--shadow-xs-border-select)" }}
+                            onInput={(event) => setTitle("draft", event.currentTarget.value)}
+                            onKeyDown={(event) => {
+                              event.stopPropagation()
+                              if (event.key === "Enter") {
+                                event.preventDefault()
+                                void saveTitleEditor()
+                                return
+                              }
+                              if (event.key === "Escape") {
+                                event.preventDefault()
+                                closeTitleEditor()
+                              }
+                            }}
+                            onBlur={closeTitleEditor}
+                          />
+                        </Show>
+                      </Show>
+                    </div>
+                  </div>
+                  <Show when={sessionID()}>
+                    {(id) => (
+                      <div class="shrink-0 flex items-center gap-3">
+                        <SessionContextUsage placement="bottom" />
+                        <DropdownMenu
+                          gutter={4}
+                          placement="bottom-end"
+                          open={title.menuOpen}
+                          onOpenChange={(open) => setTitle("menuOpen", open)}
+                        >
+                          <DropdownMenu.Trigger
+                            as={IconButton}
+                            icon="dot-grid"
+                            variant="ghost"
+                            class="size-6 rounded-md data-[expanded]:bg-surface-base-active"
+                            aria-label={language.t("common.moreOptions")}
+                          />
+                          <DropdownMenu.Portal>
+                            <DropdownMenu.Content
+                              style={{ "min-width": "104px" }}
+                              onCloseAutoFocus={(event) => {
+                                if (!title.pendingRename) return
+                                event.preventDefault()
+                                setTitle("pendingRename", false)
+                                openTitleEditor()
+                              }}
+                            >
+                              <DropdownMenu.Item
+                                onSelect={() => {
+                                  setTitle("pendingRename", true)
+                                  setTitle("menuOpen", false)
+                                }}
+                              >
+                                <DropdownMenu.ItemLabel>{language.t("common.rename")}</DropdownMenu.ItemLabel>
+                              </DropdownMenu.Item>
+                              <DropdownMenu.Item onSelect={() => void archiveSession(id())}>
+                                <DropdownMenu.ItemLabel>{language.t("common.archive")}</DropdownMenu.ItemLabel>
+                              </DropdownMenu.Item>
+                              <DropdownMenu.Separator />
+                              <DropdownMenu.Item
+                                onSelect={() => dialog.show(() => <DialogDeleteSession sessionID={id()} />)}
+                              >
+                                <DropdownMenu.ItemLabel>{language.t("common.delete")}</DropdownMenu.ItemLabel>
+                              </DropdownMenu.Item>
+                            </DropdownMenu.Content>
+                          </DropdownMenu.Portal>
+                        </DropdownMenu>
+                      </div>
+                    )}
+                  </Show>
+                </div>
+              </div>
+            </Show>
+
             <div
-              ref={props.setContentRef}
               role="log"
-              class="flex flex-col gap-0 items-start justify-start pb-16 transition-[margin]"
-              style={{ "padding-top": "var(--session-title-height)" }}
+              class="flex flex-col gap-12 items-start justify-start pb-16 transition-[margin]"
               classList={{
                 "w-full": true,
                 "md:max-w-200 md:mx-auto 2xl:max-w-[1000px]": props.centered,
@@ -439,15 +745,6 @@ export function MessageTimeline(props: {
               </Show>
               <For each={rendered()}>
                 {(messageID) => {
-                  // Capture at creation time: animate only messages added after the
-                  // timeline finishes its initial backfill staging, plus the first
-                  // turn while a brand new session is still using its default title.
-                  const isNew =
-                    staging.ready() ||
-                    (defaultTitle() &&
-                      sessionStatus() !== "idle" &&
-                      props.renderedUserMessages.length === 1 &&
-                      messageID === props.renderedUserMessages[0]?.id)
                   const active = createMemo(() => activeMessageID() === messageID)
                   const queued = createMemo(() => {
                     if (active()) return false
@@ -456,20 +753,13 @@ export function MessageTimeline(props: {
                     return false
                   })
                   const comments = createMemo(() => messageComments(sync.data.part[messageID] ?? []), [], {
-                    equals: (a, b) => {
-                      if (a.length !== b.length) return false
-                      return a.every((x, i) => x.path === b[i].path && x.comment === b[i].comment)
-                    },
+                    equals: (a, b) => JSON.stringify(a) === JSON.stringify(b),
                   })
                   const commentCount = createMemo(() => comments().length)
                   return (
                     <div
                       id={props.anchor(messageID)}
                       data-message-id={messageID}
-                      ref={(el) => {
-                        props.onRegisterMessage(el, messageID)
-                        onCleanup(() => props.onUnregisterMessage(messageID))
-                      }}
                       classList={{
                         "min-w-0 w-full max-w-full": true,
                         "md:max-w-200 2xl:max-w-[1000px]": props.centered,
@@ -516,10 +806,10 @@ export function MessageTimeline(props: {
                         messageID={messageID}
                         active={active()}
                         queued={queued()}
-                        animate={isNew || active()}
+                        status={active() ? sessionStatus() : undefined}
                         showReasoningSummaries={settings.general.showReasoningSummaries()}
-                        shellToolDefaultOpen={false}
-                        editToolDefaultOpen={false}
+                        shellToolDefaultOpen={settings.general.shellToolPartsExpanded()}
+                        editToolDefaultOpen={settings.general.editToolPartsExpanded()}
                         classes={{
                           root: "min-w-0 w-full relative",
                           content: "flex flex-col justify-between !overflow-visible",

packages/app/src/pages/session/scroll-spy.test.ts

@@ -1,127 +0,0 @@
-import { describe, expect, test } from "bun:test"
-import { createScrollSpy, pickOffsetId, pickVisibleId } from "./scroll-spy"
-
-const rect = (top: number, height = 80): DOMRect =>
-  ({
-    x: 0,
-    y: top,
-    top,
-    left: 0,
-    right: 800,
-    bottom: top + height,
-    width: 800,
-    height,
-    toJSON: () => ({}),
-  }) as DOMRect
-
-const setRect = (el: Element, top: number, height = 80) => {
-  Object.defineProperty(el, "getBoundingClientRect", {
-    configurable: true,
-    value: () => rect(top, height),
-  })
-}
-
-describe("pickVisibleId", () => {
-  test("prefers higher intersection ratio", () => {
-    const id = pickVisibleId(
-      [
-        { id: "a", ratio: 0.2, top: 100 },
-        { id: "b", ratio: 0.8, top: 300 },
-      ],
-      120,
-    )
-
-    expect(id).toBe("b")
-  })
-
-  test("breaks ratio ties by nearest line", () => {
-    const id = pickVisibleId(
-      [
-        { id: "a", ratio: 0.5, top: 90 },
-        { id: "b", ratio: 0.5, top: 140 },
-      ],
-      130,
-    )
-
-    expect(id).toBe("b")
-  })
-})
-
-describe("pickOffsetId", () => {
-  test("uses binary search cutoff", () => {
-    const id = pickOffsetId(
-      [
-        { id: "a", top: 0 },
-        { id: "b", top: 200 },
-        { id: "c", top: 400 },
-      ],
-      350,
-    )
-
-    expect(id).toBe("b")
-  })
-})
-
-describe("createScrollSpy fallback", () => {
-  test("tracks active id from offsets and dirty refresh", () => {
-    const active: string[] = []
-    const root = document.createElement("div") as HTMLDivElement
-    const one = document.createElement("div")
-    const two = document.createElement("div")
-    const three = document.createElement("div")
-
-    root.append(one, two, three)
-    document.body.append(root)
-
-    Object.defineProperty(root, "scrollTop", { configurable: true, writable: true, value: 250 })
-    setRect(root, 0, 800)
-    setRect(one, -250)
-    setRect(two, -50)
-    setRect(three, 150)
-
-    const queue: FrameRequestCallback[] = []
-    const flush = () => {
-      const run = [...queue]
-      queue.length = 0
-      for (const cb of run) cb(0)
-    }
-
-    const spy = createScrollSpy({
-      onActive: (id) => active.push(id),
-      raf: (cb) => (queue.push(cb), queue.length),
-      caf: () => {},
-      IntersectionObserver: undefined,
-      ResizeObserver: undefined,
-      MutationObserver: undefined,
-    })
-
-    spy.setContainer(root)
-    spy.register(one, "a")
-    spy.register(two, "b")
-    spy.register(three, "c")
-    spy.onScroll()
-    flush()
-
-    expect(spy.getActiveId()).toBe("b")
-    expect(active.at(-1)).toBe("b")
-
-    root.scrollTop = 450
-    setRect(one, -450)
-    setRect(two, -250)
-    setRect(three, -50)
-    spy.onScroll()
-    flush()
-    expect(spy.getActiveId()).toBe("c")
-
-    root.scrollTop = 250
-    setRect(one, -250)
-    setRect(two, 250)
-    setRect(three, 150)
-    spy.markDirty()
-    spy.onScroll()
-    flush()
-    expect(spy.getActiveId()).toBe("a")
-
-    spy.destroy()
-  })
-})

packages/app/src/pages/session/scroll-spy.ts

@@ -1,275 +0,0 @@
-type Visible = {
-  id: string
-  ratio: number
-  top: number
-}
-
-type Offset = {
-  id: string
-  top: number
-}
-
-type Input = {
-  onActive: (id: string) => void
-  raf?: (cb: FrameRequestCallback) => number
-  caf?: (id: number) => void
-  IntersectionObserver?: typeof globalThis.IntersectionObserver
-  ResizeObserver?: typeof globalThis.ResizeObserver
-  MutationObserver?: typeof globalThis.MutationObserver
-}
-
-export const pickVisibleId = (list: Visible[], line: number) => {
-  if (list.length === 0) return
-
-  const sorted = [...list].sort((a, b) => {
-    if (b.ratio !== a.ratio) return b.ratio - a.ratio
-
-    const da = Math.abs(a.top - line)
-    const db = Math.abs(b.top - line)
-    if (da !== db) return da - db
-
-    return a.top - b.top
-  })
-
-  return sorted[0]?.id
-}
-
-export const pickOffsetId = (list: Offset[], cutoff: number) => {
-  if (list.length === 0) return
-
-  let lo = 0
-  let hi = list.length - 1
-  let out = 0
-
-  while (lo <= hi) {
-    const mid = (lo + hi) >> 1
-    const top = list[mid]?.top
-    if (top === undefined) break
-
-    if (top <= cutoff) {
-      out = mid
-      lo = mid + 1
-      continue
-    }
-
-    hi = mid - 1
-  }
-
-  return list[out]?.id
-}
-
-export const createScrollSpy = (input: Input) => {
-  const raf = input.raf ?? requestAnimationFrame
-  const caf = input.caf ?? cancelAnimationFrame
-  const CtorIO = input.IntersectionObserver ?? globalThis.IntersectionObserver
-  const CtorRO = input.ResizeObserver ?? globalThis.ResizeObserver
-  const CtorMO = input.MutationObserver ?? globalThis.MutationObserver
-
-  let root: HTMLDivElement | undefined
-  let io: IntersectionObserver | undefined
-  let ro: ResizeObserver | undefined
-  let mo: MutationObserver | undefined
-  let frame: number | undefined
-  let active: string | undefined
-  let dirty = true
-
-  const node = new Map<string, HTMLElement>()
-  const id = new WeakMap<HTMLElement, string>()
-  const visible = new Map<string, { ratio: number; top: number }>()
-  let offset: Offset[] = []
-
-  const schedule = () => {
-    if (frame !== undefined) return
-    frame = raf(() => {
-      frame = undefined
-      update()
-    })
-  }
-
-  const refreshOffset = () => {
-    const el = root
-    if (!el) {
-      offset = []
-      dirty = false
-      return
-    }
-
-    const base = el.getBoundingClientRect().top
-    offset = [...node].map(([next, item]) => ({
-      id: next,
-      top: item.getBoundingClientRect().top - base + el.scrollTop,
-    }))
-    offset.sort((a, b) => a.top - b.top)
-    dirty = false
-  }
-
-  const update = () => {
-    const el = root
-    if (!el) return
-
-    const line = el.getBoundingClientRect().top + 100
-    const next =
-      pickVisibleId(
-        [...visible].map(([k, v]) => ({
-          id: k,
-          ratio: v.ratio,
-          top: v.top,
-        })),
-        line,
-      ) ??
-      (() => {
-        if (dirty) refreshOffset()
-        return pickOffsetId(offset, el.scrollTop + 100)
-      })()
-
-    if (!next || next === active) return
-    active = next
-    input.onActive(next)
-  }
-
-  const observe = () => {
-    const el = root
-    if (!el) return
-
-    io?.disconnect()
-    io = undefined
-    if (CtorIO) {
-      try {
-        io = new CtorIO(
-          (entries) => {
-            for (const entry of entries) {
-              const item = entry.target
-              if (!(item instanceof HTMLElement)) continue
-              const key = id.get(item)
-              if (!key) continue
-
-              if (!entry.isIntersecting || entry.intersectionRatio <= 0) {
-                visible.delete(key)
-                continue
-              }
-
-              visible.set(key, {
-                ratio: entry.intersectionRatio,
-                top: entry.boundingClientRect.top,
-              })
-            }
-
-            schedule()
-          },
-          {
-            root: el,
-            threshold: [0, 0.25, 0.5, 0.75, 1],
-          },
-        )
-      } catch {
-        io = undefined
-      }
-    }
-
-    if (io) {
-      for (const item of node.values()) io.observe(item)
-    }
-
-    ro?.disconnect()
-    ro = undefined
-    if (CtorRO) {
-      ro = new CtorRO(() => {
-        dirty = true
-        schedule()
-      })
-      ro.observe(el)
-      for (const item of node.values()) ro.observe(item)
-    }
-
-    mo?.disconnect()
-    mo = undefined
-    if (CtorMO) {
-      mo = new CtorMO(() => {
-        dirty = true
-        schedule()
-      })
-      mo.observe(el, { subtree: true, childList: true, characterData: true })
-    }
-
-    dirty = true
-    schedule()
-  }
-
-  const setContainer = (el?: HTMLDivElement) => {
-    if (root === el) return
-
-    root = el
-    visible.clear()
-    active = undefined
-    observe()
-  }
-
-  const register = (el: HTMLElement, key: string) => {
-    const prev = node.get(key)
-    if (prev && prev !== el) {
-      io?.unobserve(prev)
-      ro?.unobserve(prev)
-    }
-
-    node.set(key, el)
-    id.set(el, key)
-    if (io) io.observe(el)
-    if (ro) ro.observe(el)
-    dirty = true
-    schedule()
-  }
-
-  const unregister = (key: string) => {
-    const item = node.get(key)
-    if (!item) return
-
-    io?.unobserve(item)
-    ro?.unobserve(item)
-    node.delete(key)
-    visible.delete(key)
-    dirty = true
-    schedule()
-  }
-
-  const markDirty = () => {
-    dirty = true
-    schedule()
-  }
-
-  const clear = () => {
-    for (const item of node.values()) {
-      io?.unobserve(item)
-      ro?.unobserve(item)
-    }
-
-    node.clear()
-    visible.clear()
-    offset = []
-    active = undefined
-    dirty = true
-  }
-
-  const destroy = () => {
-    if (frame !== undefined) caf(frame)
-    frame = undefined
-    clear()
-    io?.disconnect()
-    ro?.disconnect()
-    mo?.disconnect()
-    io = undefined
-    ro = undefined
-    mo = undefined
-    root = undefined
-  }
-
-  return {
-    setContainer,
-    register,
-    unregister,
-    onScroll: schedule,
-    markDirty,
-    clear,
-    destroy,
-    getActiveId: () => active,
-  }
-}

packages/app/src/pages/session/session-model-helpers.test.ts

@@ -0,0 +1,158 @@
+import { describe, expect, test } from "bun:test"
+import type { UserMessage } from "@opencode-ai/sdk/v2"
+import { resetSessionModel, syncSessionModel } from "./session-model-helpers"
+
+const message = (input?: Partial<Pick<UserMessage, "agent" | "model" | "variant">>) =>
+  ({
+    id: "msg",
+    sessionID: "session",
+    role: "user",
+    time: { created: 1 },
+    agent: input?.agent ?? "build",
+    model: input?.model ?? { providerID: "anthropic", modelID: "claude-sonnet-4" },
+    variant: input?.variant,
+  }) as UserMessage
+
+describe("syncSessionModel", () => {
+  test("restores the last message model and variant", () => {
+    const calls: unknown[] = []
+
+    syncSessionModel(
+      {
+        agent: {
+          current() {
+            return undefined
+          },
+          set(value) {
+            calls.push(["agent", value])
+          },
+        },
+        model: {
+          set(value) {
+            calls.push(["model", value])
+          },
+          current() {
+            return { id: "claude-sonnet-4", provider: { id: "anthropic" } }
+          },
+          variant: {
+            set(value) {
+              calls.push(["variant", value])
+            },
+          },
+        },
+      },
+      message({ variant: "high" }),
+    )
+
+    expect(calls).toEqual([
+      ["agent", "build"],
+      ["model", { providerID: "anthropic", modelID: "claude-sonnet-4" }],
+      ["variant", "high"],
+    ])
+  })
+
+  test("skips variant when the model falls back", () => {
+    const calls: unknown[] = []
+
+    syncSessionModel(
+      {
+        agent: {
+          current() {
+            return undefined
+          },
+          set(value) {
+            calls.push(["agent", value])
+          },
+        },
+        model: {
+          set(value) {
+            calls.push(["model", value])
+          },
+          current() {
+            return { id: "gpt-5", provider: { id: "openai" } }
+          },
+          variant: {
+            set(value) {
+              calls.push(["variant", value])
+            },
+          },
+        },
+      },
+      message({ variant: "high" }),
+    )
+
+    expect(calls).toEqual([
+      ["agent", "build"],
+      ["model", { providerID: "anthropic", modelID: "claude-sonnet-4" }],
+    ])
+  })
+})
+
+describe("resetSessionModel", () => {
+  test("restores the current agent defaults", () => {
+    const calls: unknown[] = []
+
+    resetSessionModel({
+      agent: {
+        current() {
+          return {
+            model: { providerID: "anthropic", modelID: "claude-sonnet-4" },
+            variant: "high",
+          }
+        },
+        set() {},
+      },
+      model: {
+        set(value) {
+          calls.push(["model", value])
+        },
+        current() {
+          return undefined
+        },
+        variant: {
+          set(value) {
+            calls.push(["variant", value])
+          },
+        },
+      },
+    })
+
+    expect(calls).toEqual([
+      ["model", { providerID: "anthropic", modelID: "claude-sonnet-4" }],
+      ["variant", "high"],
+    ])
+  })
+
+  test("clears the variant when the agent has none", () => {
+    const calls: unknown[] = []
+
+    resetSessionModel({
+      agent: {
+        current() {
+          return {
+            model: { providerID: "anthropic", modelID: "claude-sonnet-4" },
+          }
+        },
+        set() {},
+      },
+      model: {
+        set(value) {
+          calls.push(["model", value])
+        },
+        current() {
+          return undefined
+        },
+        variant: {
+          set(value) {
+            calls.push(["variant", value])
+          },
+        },
+      },
+    })
+
+    expect(calls).toEqual([
+      ["model", { providerID: "anthropic", modelID: "claude-sonnet-4" }],
+      ["variant", undefined],
+    ])
+  })
+})

packages/app/src/pages/session/session-model-helpers.ts

@@ -0,0 +1,48 @@
+import type { UserMessage } from "@opencode-ai/sdk/v2"
+import { batch } from "solid-js"
+
+type Local = {
+  agent: {
+    current():
+      | {
+          model?: UserMessage["model"]
+          variant?: string
+        }
+      | undefined
+    set(name: string | undefined): void
+  }
+  model: {
+    set(model: UserMessage["model"] | undefined): void
+    current():
+      | {
+          id: string
+          provider: { id: string }
+        }
+      | undefined
+    variant: {
+      set(value: string | undefined): void
+    }
+  }
+}
+
+export const resetSessionModel = (local: Local) => {
+  const agent = local.agent.current()
+  if (!agent) return
+  batch(() => {
+    local.model.set(agent.model)
+    local.model.variant.set(agent.variant)
+  })
+}
+
+export const syncSessionModel = (local: Local, msg: UserMessage) => {
+  batch(() => {
+    local.agent.set(msg.agent)
+    local.model.set(msg.model)
+  })
+
+  const model = local.model.current()
+  if (!model) return
+  if (model.provider.id !== msg.model.providerID) return
+  if (model.id !== msg.model.modelID) return
+  local.model.variant.set(msg.variant)
+}