chore: refactor packages/app files (#13236)

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

20 files changed, 817 insertions, 650 deletions

diff --git a/packages/app/src/context/command.tsx b/packages/app/src/context/command.tsx
index e6a16fd4b..b286364c6 100644
--- a/packages/app/src/context/command.tsx
+++ b/packages/app/src/context/command.tsx
@@ -11,6 +11,7 @@ const IS_MAC = typeof navigator === "object" && /(Mac|iPod|iPhone|iPad)/.test(na
 const PALETTE_ID = "command.palette"
 const DEFAULT_PALETTE_KEYBIND = "mod+shift+p"
 const SUGGESTED_PREFIX = "suggested."
+const EDITABLE_KEYBIND_IDS = new Set(["terminal.toggle", "terminal.new"])
 
 function actionId(id: string) {
   if (!id.startsWith(SUGGESTED_PREFIX)) return id
@@ -33,6 +34,11 @@ function signatureFromEvent(event: KeyboardEvent) {
   return signature(normalizeKey(event.key), event.ctrlKey, event.metaKey, event.shiftKey, event.altKey)
 }
 
+function isAllowedEditableKeybind(id: string | undefined) {
+  if (!id) return false
+  return EDITABLE_KEYBIND_IDS.has(actionId(id))
+}
+
 export type KeybindConfig = string
 
 export interface Keybind {
@@ -56,6 +62,8 @@ export interface CommandOption {
   onHighlight?: () => (() => void) | void
 }
 
+type CommandSource = "palette" | "keybind" | "slash"
+
 export type CommandCatalogItem = {
   title: string
   description?: string
@@ -169,6 +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: () => {
@@ -275,13 +291,18 @@ export const { use: useCommand, provider: CommandProvider } = createSimpleContex
       return map
     })
 
-    const run = (id: string, source?: "palette" | "keybind" | "slash") => {
+    const optionMap = createMemo(() => {
+      const map = new Map<string, CommandOption>()
       for (const option of options()) {
-        if (option.id === id || option.id === "suggested." + id) {
-          option.onSelect?.(source)
-          return
-        }
+        map.set(option.id, option)
+        map.set(actionId(option.id), option)
       }
+      return map
+    })
+
+    const run = (id: string, source?: CommandSource) => {
+      const option = optionMap().get(id)
+      option?.onSelect?.(source)
     }
 
     const showPalette = () => {
@@ -292,14 +313,17 @@ export const { use: useCommand, provider: CommandProvider } = createSimpleContex
       if (suspended() || dialog.active) return
 
       const sig = signatureFromEvent(event)
+      const isPalette = palette().has(sig)
+      const option = keymap().get(sig)
+
+      if (isEditableTarget(event.target) && !isPalette && !isAllowedEditableKeybind(option?.id)) return
 
-      if (palette().has(sig)) {
+      if (isPalette) {
         event.preventDefault()
         showPalette()
         return
       }
 
-      const option = keymap().get(sig)
       if (!option) return
       event.preventDefault()
       option.onSelect?.("keybind")
@@ -332,7 +356,7 @@ export const { use: useCommand, provider: CommandProvider } = createSimpleContex
 
     return {
       register,
-      trigger(id: string, source?: "palette" | "keybind" | "slash") {
+      trigger(id: string, source?: CommandSource) {
         run(id, source)
       },
       keybind(id: string) {
@@ -351,7 +375,7 @@ export const { use: useCommand, provider: CommandProvider } = createSimpleContex
       },
       show: showPalette,
       keybinds(enabled: boolean) {
-        setStore("suspendCount", (count) => count + (enabled ? -1 : 1))
+        setStore("suspendCount", (count) => Math.max(0, count + (enabled ? -1 : 1)))
       },
       suspended,
       get catalog() {
diff --git a/packages/app/src/context/comments.test.ts b/packages/app/src/context/comments.test.ts
index 4f223e5f8..bee5c7871 100644
--- a/packages/app/src/context/comments.test.ts
+++ b/packages/app/src/context/comments.test.ts
@@ -109,4 +109,45 @@ describe("comments session indexing", () => {
       dispose()
     })
   })
+
+  test("remove keeps focus when same comment id exists in another file", () => {
+    createRoot((dispose) => {
+      const comments = createCommentSessionForTest({
+        "a.ts": [line("a.ts", "shared", 10)],
+        "b.ts": [line("b.ts", "shared", 20)],
+      })
+
+      comments.setFocus({ file: "b.ts", id: "shared" })
+      comments.remove("a.ts", "shared")
+
+      expect(comments.focus()).toEqual({ file: "b.ts", id: "shared" })
+      expect(comments.list("a.ts")).toEqual([])
+      expect(comments.list("b.ts").map((item) => item.id)).toEqual(["shared"])
+
+      dispose()
+    })
+  })
+
+  test("setFocus and setActive updater callbacks receive current state", () => {
+    createRoot((dispose) => {
+      const comments = createCommentSessionForTest()
+
+      comments.setFocus({ file: "a.ts", id: "a1" })
+      comments.setFocus((current) => {
+        expect(current).toEqual({ file: "a.ts", id: "a1" })
+        return { file: "b.ts", id: "b1" }
+      })
+
+      comments.setActive({ file: "c.ts", id: "c1" })
+      comments.setActive((current) => {
+        expect(current).toEqual({ file: "c.ts", id: "c1" })
+        return null
+      })
+
+      expect(comments.focus()).toEqual({ file: "b.ts", id: "b1" })
+      expect(comments.active()).toBeNull()
+
+      dispose()
+    })
+  })
 })
diff --git a/packages/app/src/context/comments.tsx b/packages/app/src/context/comments.tsx
index a88ea0d86..ecf63e45b 100644
--- a/packages/app/src/context/comments.tsx
+++ b/packages/app/src/context/comments.tsx
@@ -1,4 +1,4 @@
-import { batch, createEffect, createMemo, createRoot, onCleanup } from "solid-js"
+import { batch, createMemo, createRoot, onCleanup } from "solid-js"
 import { createStore, reconcile, type SetStoreFunction, type Store } from "solid-js/store"
 import { createSimpleContext } from "@opencode-ai/ui/context"
 import { useParams } from "@solidjs/router"
@@ -20,6 +20,19 @@ type CommentFocus = { file: string; id: string }
 const WORKSPACE_KEY = "__workspace__"
 const MAX_COMMENT_SESSIONS = 20
 
+function sessionKey(dir: string, id: string | undefined) {
+  return `${dir}\n${id ?? WORKSPACE_KEY}`
+}
+
+function decodeSessionKey(key: string) {
+  const split = key.lastIndexOf("\n")
+  if (split < 0) return { dir: key, id: WORKSPACE_KEY }
+  return {
+    dir: key.slice(0, split),
+    id: key.slice(split + 1),
+  }
+}
+
 type CommentStore = {
   comments: Record<string, LineComment[]>
 }
@@ -31,24 +44,24 @@ function aggregate(comments: Record<string, LineComment[]>) {
     .sort((a, b) => a.time - b.time)
 }
 
-function insert(items: LineComment[], next: LineComment) {
-  const index = items.findIndex((item) => item.time > next.time)
-  if (index < 0) return [...items, next]
-  return [...items.slice(0, index), next, ...items.slice(index)]
-}
-
 function createCommentSessionState(store: Store<CommentStore>, setStore: SetStoreFunction<CommentStore>) {
   const [state, setState] = createStore({
     focus: null as CommentFocus | null,
     active: null as CommentFocus | null,
-    all: aggregate(store.comments),
   })
 
+  const all = () => aggregate(store.comments)
+
+  const setRef = (
+    key: "focus" | "active",
+    value: CommentFocus | null | ((value: CommentFocus | null) => CommentFocus | null),
+  ) => setState(key, value)
+
   const setFocus = (value: CommentFocus | null | ((value: CommentFocus | null) => CommentFocus | null)) =>
-    setState("focus", value)
+    setRef("focus", value)
 
   const setActive = (value: CommentFocus | null | ((value: CommentFocus | null) => CommentFocus | null)) =>
-    setState("active", value)
+    setRef("active", value)
 
   const list = (file: string) => store.comments[file] ?? []
 
@@ -61,7 +74,6 @@ function createCommentSessionState(store: Store<CommentStore>, setStore: SetStor
 
     batch(() => {
       setStore("comments", input.file, (items) => [...(items ?? []), next])
-      setState("all", (items) => insert(items, next))
       setFocus({ file: input.file, id: next.id })
     })
 
@@ -71,15 +83,13 @@ function createCommentSessionState(store: Store<CommentStore>, setStore: SetStor
   const remove = (file: string, id: string) => {
     batch(() => {
       setStore("comments", file, (items) => (items ?? []).filter((item) => item.id !== id))
-      setState("all", (items) => items.filter((item) => !(item.file === file && item.id === id)))
-      setFocus((current) => (current?.id === id ? null : current))
+      setFocus((current) => (current?.file === file && current.id === id ? null : current))
     })
   }
 
   const clear = () => {
     batch(() => {
       setStore("comments", reconcile({}))
-      setState("all", [])
       setFocus(null)
       setActive(null)
     })
@@ -87,17 +97,16 @@ function createCommentSessionState(store: Store<CommentStore>, setStore: SetStor
 
   return {
     list,
-    all: () => state.all,
+    all,
     add,
     remove,
     clear,
     focus: () => state.focus,
     setFocus,
-    clearFocus: () => setFocus(null),
+    clearFocus: () => setRef("focus", null),
     active: () => state.active,
     setActive,
-    clearActive: () => setActive(null),
-    reindex: () => setState("all", aggregate(store.comments)),
+    clearActive: () => setRef("active", null),
   }
 }
 
@@ -117,11 +126,6 @@ function createCommentSession(dir: string, id: string | undefined) {
   )
   const session = createCommentSessionState(store, setStore)
 
-  createEffect(() => {
-    if (!ready()) return
-    session.reindex()
-  })
-
   return {
     ready,
     list: session.list,
@@ -145,11 +149,9 @@ export const { use: useComments, provider: CommentsProvider } = createSimpleCont
     const params = useParams()
     const cache = createScopedCache(
       (key) => {
-        const split = key.lastIndexOf("\n")
-        const dir = split >= 0 ? key.slice(0, split) : key
-        const id = split >= 0 ? key.slice(split + 1) : WORKSPACE_KEY
+        const decoded = decodeSessionKey(key)
         return createRoot((dispose) => ({
-          value: createCommentSession(dir, id === WORKSPACE_KEY ? undefined : id),
+          value: createCommentSession(decoded.dir, decoded.id === WORKSPACE_KEY ? undefined : decoded.id),
           dispose,
         }))
       },
@@ -162,7 +164,7 @@ export const { use: useComments, provider: CommentsProvider } = createSimpleCont
     onCleanup(() => cache.clear())
 
     const load = (dir: string, id: string | undefined) => {
-      const key = `${dir}\n${id ?? WORKSPACE_KEY}`
+      const key = sessionKey(dir, id)
       return cache.get(key).value
     }
 
diff --git a/packages/app/src/context/file.tsx b/packages/app/src/context/file.tsx
index 88b70cd41..99c6d2e42 100644
--- a/packages/app/src/context/file.tsx
+++ b/packages/app/src/context/file.tsx
@@ -43,6 +43,12 @@ export {
   touchFileContent,
 }
 
+function errorMessage(error: unknown) {
+  if (error instanceof Error && error.message) return error.message
+  if (typeof error === "string" && error) return error
+  return "Unknown error"
+}
+
 export const { use: useFile, provider: FileProvider } = createSimpleContext({
   name: "File",
   gate: false,
@@ -110,6 +116,45 @@ export const { use: useFile, provider: FileProvider } = createSimpleContext({
       setStore("file", file, { path: file, name: getFilename(file) })
     }
 
+    const setLoading = (file: string) => {
+      setStore(
+        "file",
+        file,
+        produce((draft) => {
+          draft.loading = true
+          draft.error = undefined
+        }),
+      )
+    }
+
+    const setLoaded = (file: string, content: FileState["content"]) => {
+      setStore(
+        "file",
+        file,
+        produce((draft) => {
+          draft.loaded = true
+          draft.loading = false
+          draft.content = content
+        }),
+      )
+    }
+
+    const setLoadError = (file: string, message: string) => {
+      setStore(
+        "file",
+        file,
+        produce((draft) => {
+          draft.loading = false
+          draft.error = message
+        }),
+      )
+      showToast({
+        variant: "error",
+        title: language.t("toast.file.loadFailed.title"),
+        description: message,
+      })
+    }
+
     const load = (input: string, options?: { force?: boolean }) => {
       const file = path.normalize(input)
       if (!file) return Promise.resolve()
@@ -124,29 +169,14 @@ export const { use: useFile, provider: FileProvider } = createSimpleContext({
       const pending = inflight.get(key)
       if (pending) return pending
 
-      setStore(
-        "file",
-        file,
-        produce((draft) => {
-          draft.loading = true
-          draft.error = undefined
-        }),
-      )
+      setLoading(file)
 
       const promise = sdk.client.file
         .read({ path: file })
         .then((x) => {
           if (scope() !== directory) return
           const content = x.data
-          setStore(
-            "file",
-            file,
-            produce((draft) => {
-              draft.loaded = true
-              draft.loading = false
-              draft.content = content
-            }),
-          )
+          setLoaded(file, content)
 
           if (!content) return
           touchFileContent(file, approxBytes(content))
@@ -154,19 +184,7 @@ export const { use: useFile, provider: FileProvider } = createSimpleContext({
         })
         .catch((e) => {
           if (scope() !== directory) return
-          setStore(
-            "file",
-            file,
-            produce((draft) => {
-              draft.loading = false
-              draft.error = e.message
-            }),
-          )
-          showToast({
-            variant: "error",
-            title: language.t("toast.file.loadFailed.title"),
-            description: e.message,
-          })
+          setLoadError(file, errorMessage(e))
         })
         .finally(() => {
           inflight.delete(key)
@@ -211,21 +229,16 @@ export const { use: useFile, provider: FileProvider } = createSimpleContext({
       return state
     }
 
-    const scrollTop = (input: string) => view().scrollTop(path.normalize(input))
-    const scrollLeft = (input: string) => view().scrollLeft(path.normalize(input))
-    const selectedLines = (input: string) => view().selectedLines(path.normalize(input))
-
-    const setScrollTop = (input: string, top: number) => {
-      view().setScrollTop(path.normalize(input), top)
-    }
-
-    const setScrollLeft = (input: string, left: number) => {
-      view().setScrollLeft(path.normalize(input), left)
-    }
-
-    const setSelectedLines = (input: string, range: SelectedLineRange | null) => {
-      view().setSelectedLines(path.normalize(input), range)
+    function withPath(input: string, action: (file: string) => unknown) {
+      return action(path.normalize(input))
     }
+    const scrollTop = (input: string) => withPath(input, (file) => view().scrollTop(file))
+    const scrollLeft = (input: string) => withPath(input, (file) => view().scrollLeft(file))
+    const selectedLines = (input: string) => withPath(input, (file) => view().selectedLines(file))
+    const setScrollTop = (input: string, top: number) => withPath(input, (file) => view().setScrollTop(file, top))
+    const setScrollLeft = (input: string, left: number) => withPath(input, (file) => view().setScrollLeft(file, left))
+    const setSelectedLines = (input: string, range: SelectedLineRange | null) =>
+      withPath(input, (file) => view().setSelectedLines(file, range))
 
     onCleanup(() => {
       stop()
diff --git a/packages/app/src/context/global-sdk.tsx b/packages/app/src/context/global-sdk.tsx
index cb610bf6e..8c50a8878 100644
--- a/packages/app/src/context/global-sdk.tsx
+++ b/packages/app/src/context/global-sdk.tsx
@@ -31,9 +31,11 @@ export const { use: useGlobalSDK, provider: GlobalSDKProvider } = createSimpleCo
     }>()
 
     type Queued = { directory: string; payload: Event }
+    const FLUSH_FRAME_MS = 16
+    const STREAM_YIELD_MS = 8
 
-    let queue: Array<Queued | undefined> = []
-    let buffer: Array<Queued | undefined> = []
+    let queue: Queued[] = []
+    let buffer: Queued[] = []
     const coalesced = new Map<string, number>()
     let timer: ReturnType<typeof setTimeout> | undefined
     let last = 0
@@ -62,7 +64,6 @@ export const { use: useGlobalSDK, provider: GlobalSDKProvider } = createSimpleCo
       last = Date.now()
       batch(() => {
         for (const event of events) {
-          if (!event) continue
           emitter.emit(event.directory, event.payload)
         }
       })
@@ -73,9 +74,11 @@ export const { use: useGlobalSDK, provider: GlobalSDKProvider } = createSimpleCo
     const schedule = () => {
       if (timer) return
       const elapsed = Date.now() - last
-      timer = setTimeout(flush, Math.max(0, 16 - elapsed))
+      timer = setTimeout(flush, Math.max(0, FLUSH_FRAME_MS - elapsed))
     }
 
+    let streamErrorLogged = false
+
     void (async () => {
       const events = await eventSdk.global.event()
       let yielded = Date.now()
@@ -86,20 +89,25 @@ export const { use: useGlobalSDK, provider: GlobalSDKProvider } = createSimpleCo
         if (k) {
           const i = coalesced.get(k)
           if (i !== undefined) {
-            queue[i] = undefined
+            queue[i] = { directory, payload }
+            continue
           }
           coalesced.set(k, queue.length)
         }
         queue.push({ directory, payload })
         schedule()
 
-        if (Date.now() - yielded < 8) continue
+        if (Date.now() - yielded < STREAM_YIELD_MS) continue
         yielded = Date.now()
         await new Promise<void>((resolve) => setTimeout(resolve, 0))
       }
     })()
       .finally(flush)
-      .catch(() => undefined)
+      .catch((error) => {
+        if (streamErrorLogged) return
+        streamErrorLogged = true
+        console.error("[global-sdk] event stream failed", error)
+      })
 
     onCleanup(() => {
       abort.abort()
diff --git a/packages/app/src/context/global-sync.tsx b/packages/app/src/context/global-sync.tsx
index e2bf44980..62c7eb66e 100644
--- a/packages/app/src/context/global-sync.tsx
+++ b/packages/app/src/context/global-sync.tsx
@@ -47,6 +47,20 @@ type GlobalStore = {
   reload: undefined | "pending" | "complete"
 }
 
+function errorMessage(error: unknown) {
+  if (error instanceof Error && error.message) return error.message
+  if (typeof error === "string" && error) return error
+  return "Unknown error"
+}
+
+function setDevStats(value: {
+  activeDirectoryStores: number
+  evictions: number
+  loadSessionsFullFetchFallback: number
+}) {
+  ;(globalThis as { __OPENCODE_GLOBAL_SYNC_STATS?: typeof value }).__OPENCODE_GLOBAL_SYNC_STATS = value
+}
+
 function createGlobalSync() {
   const globalSDK = useGlobalSDK()
   const platform = usePlatform()
@@ -81,19 +95,11 @@ function createGlobalSync() {
 
   const updateStats = (activeDirectoryStores: number) => {
     if (!import.meta.env.DEV) return
-    ;(
-      globalThis as {
-        __OPENCODE_GLOBAL_SYNC_STATS?: {
-          activeDirectoryStores: number
-          evictions: number
-          loadSessionsFullFetchFallback: number
-        }
-      }
-    ).__OPENCODE_GLOBAL_SYNC_STATS = {
+    setDevStats({
       activeDirectoryStores,
       evictions: stats.evictions,
       loadSessionsFullFetchFallback: stats.loadSessionsFallback,
-    }
+    })
   }
 
   const paused = () => untrack(() => globalStore.reload) !== undefined
@@ -204,7 +210,10 @@ function createGlobalSync() {
       .catch((err) => {
         console.error("Failed to load sessions", err)
         const project = getFilename(directory)
-        showToast({ title: language.t("toast.session.listFailed.title", { project }), description: err.message })
+        showToast({
+          title: language.t("toast.session.listFailed.title", { project }),
+          description: errorMessage(err),
+        })
       })
 
     sessionLoads.set(directory, promise)
@@ -307,12 +316,28 @@ function createGlobalSync() {
     void bootstrap()
   })
 
-  function projectMeta(directory: string, patch: ProjectMeta) {
-    children.projectMeta(directory, patch)
+  const projectApi = {
+    loadSessions,
+    meta(directory: string, patch: ProjectMeta) {
+      children.projectMeta(directory, patch)
+    },
+    icon(directory: string, value: string | undefined) {
+      children.projectIcon(directory, value)
+    },
   }
 
-  function projectIcon(directory: string, value: string | undefined) {
-    children.projectIcon(directory, value)
+  const updateConfig = async (config: Config) => {
+    setGlobalStore("reload", "pending")
+    return globalSDK.client.global.config
+      .update({ config })
+      .then(bootstrap)
+      .then(() => {
+        setGlobalStore("reload", "complete")
+      })
+      .catch((error) => {
+        setGlobalStore("reload", undefined)
+        throw error
+      })
   }
 
   return {
@@ -326,19 +351,8 @@ function createGlobalSync() {
     },
     child: children.child,
     bootstrap,
-    updateConfig: (config: Config) => {
-      setGlobalStore("reload", "pending")
-      return globalSDK.client.global.config.update({ config }).finally(() => {
-        setTimeout(() => {
-          setGlobalStore("reload", "complete")
-        }, 1000)
-      })
-    },
-    project: {
-      loadSessions,
-      meta: projectMeta,
-      icon: projectIcon,
-    },
+    updateConfig,
+    project: projectApi,
   }
 }
 
diff --git a/packages/app/src/context/highlights.tsx b/packages/app/src/context/highlights.tsx
index cc4c021be..476209e41 100644
--- a/packages/app/src/context/highlights.tsx
+++ b/packages/app/src/context/highlights.tsx
@@ -119,9 +119,7 @@ function sliceHighlights(input: { releases: ParsedRelease[]; current?: string; p
   const highlights = releases.slice(start, end).flatMap((release) => release.highlights)
   const seen = new Set<string>()
   const unique = highlights.filter((highlight) => {
-    const key = [highlight.title, highlight.description, highlight.media?.type ?? "", highlight.media?.src ?? ""].join(
-      "\n",
-    )
+    const key = dedupeKey(highlight)
     if (seen.has(key)) return false
     seen.add(key)
     return true
@@ -129,6 +127,16 @@ function sliceHighlights(input: { releases: ParsedRelease[]; current?: string; p
   return unique.slice(0, 5)
 }
 
+function dedupeKey(highlight: Highlight) {
+  return [highlight.title, highlight.description, highlight.media?.type ?? "", highlight.media?.src ?? ""].join("\n")
+}
+
+function loadReleaseHighlights(value: unknown, current?: string, previous?: string) {
+  const releases = parseChangelog(value)
+  if (!releases?.length) return []
+  return sliceHighlights({ releases, current, previous })
+}
+
 export const { use: useHighlights, provider: HighlightsProvider } = createSimpleContext({
   name: "Highlights",
   gate: false,
@@ -140,32 +148,21 @@ export const { use: useHighlights, provider: HighlightsProvider } = createSimple
 
     const [from, setFrom] = createSignal<string | undefined>(undefined)
     const [to, setTo] = createSignal<string | undefined>(undefined)
-    const [timer, setTimer] = createSignal<ReturnType<typeof setTimeout> | undefined>(undefined)
     const state = { started: false }
+    let timer: ReturnType<typeof setTimeout> | undefined
+
+    const clearTimer = () => {
+      if (timer === undefined) return
+      clearTimeout(timer)
+      timer = undefined
+    }
 
     const markSeen = () => {
       if (!platform.version) return
       setStore("version", platform.version)
     }
 
-    createEffect(() => {
-      if (state.started) return
-      if (!ready()) return
-      if (!settings.ready()) return
-      if (!platform.version) return
-      state.started = true
-
-      const previous = store.version
-      if (!previous) {
-        setStore("version", platform.version)
-        return
-      }
-
-      if (previous === platform.version) return
-
-      setFrom(previous)
-      setTo(platform.version)
-
+    const start = (previous: string) => {
       if (!settings.general.releaseNotes()) {
         markSeen()
         return
@@ -175,9 +172,7 @@ export const { use: useHighlights, provider: HighlightsProvider } = createSimple
       const controller = new AbortController()
       onCleanup(() => {
         controller.abort()
-        const id = timer()
-        if (id === undefined) return
-        clearTimeout(id)
+        clearTimer()
       })
 
       fetcher(CHANGELOG_URL, {
@@ -187,15 +182,7 @@ export const { use: useHighlights, provider: HighlightsProvider } = createSimple
         .then((response) => (response.ok ? (response.json() as Promise<unknown>) : undefined))
         .then((json) => {
           if (!json) return
-          const releases = parseChangelog(json)
-          if (!releases) return
-          if (releases.length === 0) return
-          const highlights = sliceHighlights({
-            releases,
-            current: platform.version,
-            previous,
-          })
-
+          const highlights = loadReleaseHighlights(json, platform.version, previous)
           if (controller.signal.aborted) return
 
           if (highlights.length === 0) {
@@ -203,13 +190,33 @@ export const { use: useHighlights, provider: HighlightsProvider } = createSimple
             return
           }
 
-          const timer = setTimeout(() => {
+          timer = setTimeout(() => {
+            timer = undefined
             markSeen()
             dialog.show(() => <DialogReleaseNotes highlights={highlights} />)
           }, 500)
-          setTimer(timer)
         })
         .catch(() => undefined)
+    }
+
+    createEffect(() => {
+      if (state.started) return
+      if (!ready()) return
+      if (!settings.ready()) return
+      if (!platform.version) return
+      state.started = true
+
+      const previous = store.version
+      if (!previous) {
+        setStore("version", platform.version)
+        return
+      }
+
+      if (previous === platform.version) return
+
+      setFrom(previous)
+      setTo(platform.version)
+      start(previous)
     })
 
     return {
diff --git a/packages/app/src/context/language.tsx b/packages/app/src/context/language.tsx
index 22f7bcca1..a5d894e62 100644
--- a/packages/app/src/context/language.tsx
+++ b/packages/app/src/context/language.tsx
@@ -76,6 +76,66 @@ const LOCALES: readonly Locale[] = [
   "th",
 ]
 
+const LABEL_KEY: Record<Locale, keyof Dictionary> = {
+  en: "language.en",
+  zh: "language.zh",
+  zht: "language.zht",
+  ko: "language.ko",
+  de: "language.de",
+  es: "language.es",
+  fr: "language.fr",
+  da: "language.da",
+  ja: "language.ja",
+  pl: "language.pl",
+  ru: "language.ru",
+  ar: "language.ar",
+  no: "language.no",
+  br: "language.br",
+  th: "language.th",
+  bs: "language.bs",
+}
+
+const base = i18n.flatten({ ...en, ...uiEn })
+const DICT: Record<Locale, Dictionary> = {
+  en: base,
+  zh: { ...base, ...i18n.flatten({ ...zh, ...uiZh }) },
+  zht: { ...base, ...i18n.flatten({ ...zht, ...uiZht }) },
+  ko: { ...base, ...i18n.flatten({ ...ko, ...uiKo }) },
+  de: { ...base, ...i18n.flatten({ ...de, ...uiDe }) },
+  es: { ...base, ...i18n.flatten({ ...es, ...uiEs }) },
+  fr: { ...base, ...i18n.flatten({ ...fr, ...uiFr }) },
+  da: { ...base, ...i18n.flatten({ ...da, ...uiDa }) },
+  ja: { ...base, ...i18n.flatten({ ...ja, ...uiJa }) },
+  pl: { ...base, ...i18n.flatten({ ...pl, ...uiPl }) },
+  ru: { ...base, ...i18n.flatten({ ...ru, ...uiRu }) },
+  ar: { ...base, ...i18n.flatten({ ...ar, ...uiAr }) },
+  no: { ...base, ...i18n.flatten({ ...no, ...uiNo }) },
+  br: { ...base, ...i18n.flatten({ ...br, ...uiBr }) },
+  th: { ...base, ...i18n.flatten({ ...th, ...uiTh }) },
+  bs: { ...base, ...i18n.flatten({ ...bs, ...uiBs }) },
+}
+
+const localeMatchers: Array<{ locale: Locale; match: (language: string) => boolean }> = [
+  { locale: "zht", match: (language) => language.startsWith("zh") && language.includes("hant") },
+  { locale: "zh", match: (language) => language.startsWith("zh") },
+  { locale: "ko", match: (language) => language.startsWith("ko") },
+  { locale: "de", match: (language) => language.startsWith("de") },
+  { locale: "es", match: (language) => language.startsWith("es") },
+  { locale: "fr", match: (language) => language.startsWith("fr") },
+  { locale: "da", match: (language) => language.startsWith("da") },
+  { locale: "ja", match: (language) => language.startsWith("ja") },
+  { locale: "pl", match: (language) => language.startsWith("pl") },
+  { locale: "ru", match: (language) => language.startsWith("ru") },
+  { locale: "ar", match: (language) => language.startsWith("ar") },
+  {
+    locale: "no",
+    match: (language) => language.startsWith("no") || language.startsWith("nb") || language.startsWith("nn"),
+  },
+  { locale: "br", match: (language) => language.startsWith("pt") },
+  { locale: "th", match: (language) => language.startsWith("th") },
+  { locale: "bs", match: (language) => language.startsWith("bs") },
+]
+
 type ParityKey = "command.session.previous.unseen" | "command.session.next.unseen"
 const PARITY_CHECK: Record<Exclude<Locale, "en">, Record<ParityKey, string>> = {
   zh,
@@ -102,28 +162,9 @@ function detectLocale(): Locale {
   const languages = navigator.languages?.length ? navigator.languages : [navigator.language]
   for (const language of languages) {
     if (!language) continue
-    if (language.toLowerCase().startsWith("zh")) {
-      if (language.toLowerCase().includes("hant")) return "zht"
-      return "zh"
-    }
-    if (language.toLowerCase().startsWith("ko")) return "ko"
-    if (language.toLowerCase().startsWith("de")) return "de"
-    if (language.toLowerCase().startsWith("es")) return "es"
-    if (language.toLowerCase().startsWith("fr")) return "fr"
-    if (language.toLowerCase().startsWith("da")) return "da"
-    if (language.toLowerCase().startsWith("ja")) return "ja"
-    if (language.toLowerCase().startsWith("pl")) return "pl"
-    if (language.toLowerCase().startsWith("ru")) return "ru"
-    if (language.toLowerCase().startsWith("ar")) return "ar"
-    if (
-      language.toLowerCase().startsWith("no") ||
-      language.toLowerCase().startsWith("nb") ||
-      language.toLowerCase().startsWith("nn")
-    )
-      return "no"
-    if (language.toLowerCase().startsWith("pt")) return "br"
-    if (language.toLowerCase().startsWith("th")) return "th"
-    if (language.toLowerCase().startsWith("bs")) return "bs"
+    const normalized = language.toLowerCase()
+    const match = localeMatchers.find((entry) => entry.match(normalized))
+    if (match) return match.locale
   }
 
   return "en"
@@ -139,24 +180,9 @@ export const { use: useLanguage, provider: LanguageProvider } = createSimpleCont
       }),
     )
 
-    const locale = createMemo<Locale>(() => {
-      if (store.locale === "zh") return "zh"
-      if (store.locale === "zht") return "zht"
-      if (store.locale === "ko") return "ko"
-      if (store.locale === "de") return "de"
-      if (store.locale === "es") return "es"
-      if (store.locale === "fr") return "fr"
-      if (store.locale === "da") return "da"
-      if (store.locale === "ja") return "ja"
-      if (store.locale === "pl") return "pl"
-      if (store.locale === "ru") return "ru"
-      if (store.locale === "ar") return "ar"
-      if (store.locale === "no") return "no"
-      if (store.locale === "br") return "br"
-      if (store.locale === "th") return "th"
-      if (store.locale === "bs") return "bs"
-      return "en"
-    })
+    const locale = createMemo<Locale>(() =>
+      LOCALES.includes(store.locale as Locale) ? (store.locale as Locale) : "en",
+    )
 
     createEffect(() => {
       const current = locale()
@@ -164,48 +190,11 @@ export const { use: useLanguage, provider: LanguageProvider } = createSimpleCont
       setStore("locale", current)
     })
 
-    const base = i18n.flatten({ ...en, ...uiEn })
-    const dict = createMemo<Dictionary>(() => {
-      if (locale() === "en") return base
-      if (locale() === "zh") return { ...base, ...i18n.flatten({ ...zh, ...uiZh }) }
-      if (locale() === "zht") return { ...base, ...i18n.flatten({ ...zht, ...uiZht }) }
-      if (locale() === "de") return { ...base, ...i18n.flatten({ ...de, ...uiDe }) }
-      if (locale() === "es") return { ...base, ...i18n.flatten({ ...es, ...uiEs }) }
-      if (locale() === "fr") return { ...base, ...i18n.flatten({ ...fr, ...uiFr }) }
-      if (locale() === "da") return { ...base, ...i18n.flatten({ ...da, ...uiDa }) }
-      if (locale() === "ja") return { ...base, ...i18n.flatten({ ...ja, ...uiJa }) }
-      if (locale() === "pl") return { ...base, ...i18n.flatten({ ...pl, ...uiPl }) }
-      if (locale() === "ru") return { ...base, ...i18n.flatten({ ...ru, ...uiRu }) }
-      if (locale() === "ar") return { ...base, ...i18n.flatten({ ...ar, ...uiAr }) }
-      if (locale() === "no") return { ...base, ...i18n.flatten({ ...no, ...uiNo }) }
-      if (locale() === "br") return { ...base, ...i18n.flatten({ ...br, ...uiBr }) }
-      if (locale() === "th") return { ...base, ...i18n.flatten({ ...th, ...uiTh }) }
-      if (locale() === "bs") return { ...base, ...i18n.flatten({ ...bs, ...uiBs }) }
-      return { ...base, ...i18n.flatten({ ...ko, ...uiKo }) }
-    })
+    const dict = createMemo<Dictionary>(() => DICT[locale()])
 
     const t = i18n.translator(dict, i18n.resolveTemplate)
 
-    const labelKey: Record<Locale, keyof Dictionary> = {
-      en: "language.en",
-      zh: "language.zh",
-      zht: "language.zht",
-      ko: "language.ko",
-      de: "language.de",
-      es: "language.es",
-      fr: "language.fr",
-      da: "language.da",
-      ja: "language.ja",
-      pl: "language.pl",
-      ru: "language.ru",
-      ar: "language.ar",
-      no: "language.no",
-      br: "language.br",
-      th: "language.th",
-      bs: "language.bs",
-    }
-
-    const label = (value: Locale) => t(labelKey[value])
+    const label = (value: Locale) => t(LABEL_KEY[value])
 
     createEffect(() => {
       if (typeof document !== "object") return
diff --git a/packages/app/src/context/layout.tsx b/packages/app/src/context/layout.tsx
index 4019b2f29..71f0294e7 100644
--- a/packages/app/src/context/layout.tsx
+++ b/packages/app/src/context/layout.tsx
@@ -11,6 +11,9 @@ import { same } from "@/utils/same"
 import { createScrollPersistence, type SessionScroll } from "./layout-scroll"
 
 const AVATAR_COLOR_KEYS = ["pink", "mint", "orange", "purple", "cyan", "lime"] as const
+const DEFAULT_PANEL_WIDTH = 344
+const DEFAULT_SESSION_WIDTH = 600
+const DEFAULT_TERMINAL_HEIGHT = 280
 export type AvatarColorKey = (typeof AVATAR_COLOR_KEYS)[number]
 
 export function getAvatarColors(key?: string) {
@@ -85,6 +88,14 @@ export function pruneSessionKeys(input: {
     .slice(input.max)
 }
 
+function nextSessionTabsForOpen(current: SessionTabs | undefined, tab: string): SessionTabs {
+  const all = current?.all ?? []
+  if (tab === "review") return { all: all.filter((x) => x !== "review"), active: tab }
+  if (tab === "context") return { all: [tab, ...all.filter((x) => x !== tab)], active: tab }
+  if (!all.includes(tab)) return { all: [...all, tab], active: tab }
+  return { all, active: tab }
+}
+
 export const { use: useLayout, provider: LayoutProvider } = createSimpleContext({
   name: "Layout",
   init: () => {
@@ -116,11 +127,11 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
         if (!isRecord(fileTree)) return fileTree
         if (fileTree.tab === "changes" || fileTree.tab === "all") return fileTree
 
-        const width = typeof fileTree.width === "number" ? fileTree.width : 344
+        const width = typeof fileTree.width === "number" ? fileTree.width : DEFAULT_PANEL_WIDTH
         return {
           ...fileTree,
           opened: true,
-          width: width === 260 ? 344 : width,
+          width: width === 260 ? DEFAULT_PANEL_WIDTH : width,
           tab: "changes",
         }
       })()
@@ -151,12 +162,12 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
       createStore({
         sidebar: {
           opened: false,
-          width: 344,
+          width: DEFAULT_PANEL_WIDTH,
           workspaces: {} as Record<string, boolean>,
           workspacesDefault: false,
         },
         terminal: {
-          height: 280,
+          height: DEFAULT_TERMINAL_HEIGHT,
           opened: false,
         },
         review: {
@@ -165,11 +176,11 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
         },
         fileTree: {
           opened: true,
-          width: 344,
+          width: DEFAULT_PANEL_WIDTH,
           tab: "changes" as "changes" | "all",
         },
         session: {
-          width: 600,
+          width: DEFAULT_SESSION_WIDTH,
         },
         mobileSidebar: {
           opened: false,
@@ -184,8 +195,11 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
 
     const MAX_SESSION_KEYS = 50
     const PENDING_MESSAGE_TTL_MS = 2 * 60 * 1000
-    const meta = { active: undefined as string | undefined, pruned: false }
-    const used = new Map<string, number>()
+    const usage = {
+      active: undefined as string | undefined,
+      pruned: false,
+      used: new Map<string, number>(),
+    }
 
     const SESSION_STATE_KEYS = [
       { key: "prompt", legacy: "prompt", version: "v2" },
@@ -214,7 +228,7 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
       const drop = pruneSessionKeys({
         keep,
         max: MAX_SESSION_KEYS,
-        used,
+        used: usage.used,
         view: Object.keys(store.sessionView),
         tabs: Object.keys(store.sessionTabs),
       })
@@ -233,18 +247,18 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
       dropSessionState(drop)
 
       for (const key of drop) {
-        used.delete(key)
+        usage.used.delete(key)
       }
     }
 
     function touch(sessionKey: string) {
-      meta.active = sessionKey
-      used.set(sessionKey, Date.now())
+      usage.active = sessionKey
+      usage.used.set(sessionKey, Date.now())
 
       if (!ready()) return
-      if (meta.pruned) return
+      if (usage.pruned) return
 
-      meta.pruned = true
+      usage.pruned = true
       prune(sessionKey)
     }
 
@@ -253,7 +267,7 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
       getSnapshot: (sessionKey) => store.sessionView[sessionKey]?.scroll,
       onFlush: (sessionKey, next) => {
         const current = store.sessionView[sessionKey]
-        const keep = meta.active ?? sessionKey
+        const keep = usage.active ?? sessionKey
         if (!current) {
           setStore("sessionView", sessionKey, { scroll: next })
           prune(keep)
@@ -269,10 +283,10 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
 
     createEffect(() => {
       if (!ready()) return
-      if (meta.pruned) return
-      const active = meta.active
+      if (usage.pruned) return
+      const active = usage.active
       if (!active) return
-      meta.pruned = true
+      usage.pruned = true
       prune(active)
     })
 
@@ -546,32 +560,32 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
       },
       fileTree: {
         opened: createMemo(() => store.fileTree?.opened ?? true),
-        width: createMemo(() => store.fileTree?.width ?? 344),
+        width: createMemo(() => store.fileTree?.width ?? DEFAULT_PANEL_WIDTH),
         tab: createMemo(() => store.fileTree?.tab ?? "changes"),
         setTab(tab: "changes" | "all") {
           if (!store.fileTree) {
-            setStore("fileTree", { opened: true, width: 344, tab })
+            setStore("fileTree", { opened: true, width: DEFAULT_PANEL_WIDTH, tab })
             return
           }
           setStore("fileTree", "tab", tab)
         },
         open() {
           if (!store.fileTree) {
-            setStore("fileTree", { opened: true, width: 344, tab: "changes" })
+            setStore("fileTree", { opened: true, width: DEFAULT_PANEL_WIDTH, tab: "changes" })
             return
           }
           setStore("fileTree", "opened", true)
         },
         close() {
           if (!store.fileTree) {
-            setStore("fileTree", { opened: false, width: 344, tab: "changes" })
+            setStore("fileTree", { opened: false, width: DEFAULT_PANEL_WIDTH, tab: "changes" })
             return
           }
           setStore("fileTree", "opened", false)
         },
         toggle() {
           if (!store.fileTree) {
-            setStore("fileTree", { opened: true, width: 344, tab: "changes" })
+            setStore("fileTree", { opened: true, width: DEFAULT_PANEL_WIDTH, tab: "changes" })
             return
           }
           setStore("fileTree", "opened", (x) => !x)
@@ -585,7 +599,7 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
         },
       },
       session: {
-        width: createMemo(() => store.session?.width ?? 600),
+        width: createMemo(() => store.session?.width ?? DEFAULT_SESSION_WIDTH),
         resize(width: number) {
           if (!store.session) {
             setStore("session", { width })
@@ -617,7 +631,7 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
               pendingMessage: messageID,
               pendingMessageAt: at,
             })
-            prune(meta.active ?? sessionKey)
+            prune(usage.active ?? sessionKey)
             return
           }
 
@@ -658,7 +672,7 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
         function setTerminalOpened(next: boolean) {
           const current = store.terminal
           if (!current) {
-            setStore("terminal", { height: 280, opened: next })
+            setStore("terminal", { height: DEFAULT_TERMINAL_HEIGHT, opened: next })
             return
           }
 
@@ -755,43 +769,8 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
           },
           async open(tab: string) {
             const session = key()
-            const current = store.sessionTabs[session] ?? { all: [] }
-
-            if (tab === "review") {
-              if (!store.sessionTabs[session]) {
-                setStore("sessionTabs", session, { all: current.all.filter((x) => x !== "review"), active: tab })
-                return
-              }
-              setStore("sessionTabs", session, "active", tab)
-              return
-            }
-
-            if (tab === "context") {
-              const all = [tab, ...current.all.filter((x) => x !== tab)]
-              if (!store.sessionTabs[session]) {
-                setStore("sessionTabs", session, { all, active: tab })
-                return
-              }
-              setStore("sessionTabs", session, "all", all)
-              setStore("sessionTabs", session, "active", tab)
-              return
-            }
-
-            if (!current.all.includes(tab)) {
-              if (!store.sessionTabs[session]) {
-                setStore("sessionTabs", session, { all: [tab], active: tab })
-                return
-              }
-              setStore("sessionTabs", session, "all", [...current.all, tab])
-              setStore("sessionTabs", session, "active", tab)
-              return
-            }
-
-            if (!store.sessionTabs[session]) {
-              setStore("sessionTabs", session, { all: current.all, active: tab })
-              return
-            }
-            setStore("sessionTabs", session, "active", tab)
+            const next = nextSessionTabsForOpen(store.sessionTabs[session], tab)
+            setStore("sessionTabs", session, next)
           },
           close(tab: string) {
             const session = key()
diff --git a/packages/app/src/context/local.tsx b/packages/app/src/context/local.tsx
index 85f93f368..ac5da60e8 100644
--- a/packages/app/src/context/local.tsx
+++ b/packages/app/src/context/local.tsx
@@ -16,16 +16,11 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
     const sdk = useSDK()
     const sync = useSync()
     const providers = useProviders()
+    const connected = createMemo(() => new Set(providers.connected().map((provider) => provider.id)))
 
     function isModelValid(model: ModelKey) {
       const provider = providers.all().find((x) => x.id === model.providerID)
-      return (
-        !!provider?.models[model.modelID] &&
-        providers
-          .connected()
-          .map((p) => p.id)
-          .includes(model.providerID)
-      )
+      return !!provider?.models[model.modelID] && connected().has(model.providerID)
     }
 
     function getFirstValidModel(...modelFns: (() => ModelKey | undefined)[]) {
@@ -36,6 +31,8 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
       }
     }
 
+    let setModel: (model: ModelKey | undefined, options?: { recent?: boolean }) => void = () => undefined
+
     const agent = (() => {
       const list = createMemo(() => sync.data.agent.filter((x) => x.mode !== "subagent" && !x.hidden))
       const [store, setStore] = createStore<{
@@ -75,7 +72,7 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
           if (!value) return
           setStore("current", value.name)
           if (value.model)
-            model.set({
+            setModel({
               providerID: value.model.providerID,
               modelID: value.model.modelID,
             })
@@ -92,38 +89,37 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
         model: {},
       })
 
-      const fallbackModel = createMemo<ModelKey | undefined>(() => {
-        if (sync.data.config.model) {
-          const [providerID, modelID] = sync.data.config.model.split("/")
-          if (isModelValid({ providerID, modelID })) {
-            return {
-              providerID,
-              modelID,
-            }
-          }
-        }
+      const resolveConfigured = () => {
+        if (!sync.data.config.model) return
+        const [providerID, modelID] = sync.data.config.model.split("/")
+        const key = { providerID, modelID }
+        if (isModelValid(key)) return key
+      }
 
+      const resolveRecent = () => {
         for (const item of models.recent.list()) {
-          if (isModelValid(item)) {
-            return item
-          }
+          if (isModelValid(item)) return item
         }
+      }
 
+      const resolveDefault = () => {
         const defaults = providers.default()
-        for (const p of providers.connected()) {
-          const configured = defaults[p.id]
+        for (const provider of providers.connected()) {
+          const configured = defaults[provider.id]
           if (configured) {
-            const key = { providerID: p.id, modelID: configured }
+            const key = { providerID: provider.id, modelID: configured }
             if (isModelValid(key)) return key
           }
 
-          const first = Object.values(p.models)[0]
+          const first = Object.values(provider.models)[0]
           if (!first) continue
-          const key = { providerID: p.id, modelID: first.id }
+          const key = { providerID: provider.id, modelID: first.id }
           if (isModelValid(key)) return key
         }
+      }
 
-        return undefined
+      const fallbackModel = createMemo<ModelKey | undefined>(() => {
+        return resolveConfigured() ?? resolveRecent() ?? resolveDefault()
       })
 
       const current = createMemo(() => {
@@ -163,21 +159,25 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
         })
       }
 
+      const set = (model: ModelKey | undefined, options?: { recent?: boolean }) => {
+        batch(() => {
+          const currentAgent = agent.current()
+          const next = model ?? fallbackModel()
+          if (currentAgent) setEphemeral("model", currentAgent.name, next)
+          if (model) models.setVisibility(model, true)
+          if (options?.recent && model) models.recent.push(model)
+        })
+      }
+
+      setModel = set
+
       return {
         ready: models.ready,
         current,
         recent,
         list: models.list,
         cycle,
-        set(model: ModelKey | undefined, options?: { recent?: boolean }) {
-          batch(() => {
-            const currentAgent = agent.current()
-            const next = model ?? fallbackModel()
-            if (currentAgent) setEphemeral("model", currentAgent.name, next)
-            if (model) models.setVisibility(model, true)
-            if (options?.recent && model) models.recent.push(model)
-          })
-        },
+        set,
         visible(model: ModelKey) {
           return models.visible(model)
         },
diff --git a/packages/app/src/context/models.tsx b/packages/app/src/context/models.tsx
index fee3c10c6..12ec8371a 100644
--- a/packages/app/src/context/models.tsx
+++ b/packages/app/src/context/models.tsx
@@ -16,6 +16,12 @@ type Store = {
   variant?: Record<string, string | undefined>
 }
 
+const RECENT_LIMIT = 5
+
+function modelKey(model: ModelKey) {
+  return `${model.providerID}:${model.modelID}`
+}
+
 export const { use: useModels, provider: ModelsProvider } = createSimpleContext({
   name: "Models",
   init: () => {
@@ -39,10 +45,27 @@ export const { use: useModels, provider: ModelsProvider } = createSimpleContext(
       ),
     )
 
+    const release = createMemo(
+      () =>
+        new Map(
+          available().map((model) => {
+            const parsed = DateTime.fromISO(model.release_date)
+            return [modelKey({ providerID: model.provider.id, modelID: model.id }), parsed] as const
+          }),
+        ),
+    )
+
     const latest = createMemo(() =>
       pipe(
         available(),
-        filter((x) => Math.abs(DateTime.fromISO(x.release_date).diffNow().as("months")) < 6),
+        filter(
+          (x) =>
+            Math.abs(
+              (release().get(modelKey({ providerID: x.provider.id, modelID: x.id })) ?? DateTime.invalid("invalid"))
+                .diffNow()
+                .as("months"),
+            ) < 6,
+        ),
         groupBy((x) => x.provider.id),
         mapValues((models) =>
           pipe(
@@ -61,7 +84,7 @@ export const { use: useModels, provider: ModelsProvider } = createSimpleContext(
       ),
     )
 
-    const latestSet = createMemo(() => new Set(latest().map((x) => `${x.providerID}:${x.modelID}`)))
+    const latestSet = createMemo(() => new Set(latest().map((x) => modelKey(x))))
 
     const visibility = createMemo(() => {
       const map = new Map<string, Visibility>()
@@ -82,20 +105,20 @@ export const { use: useModels, provider: ModelsProvider } = createSimpleContext(
     function update(model: ModelKey, state: Visibility) {
       const index = store.user.findIndex((x) => x.modelID === model.modelID && x.providerID === model.providerID)
       if (index >= 0) {
-        setStore("user", index, { visibility: state })
+        setStore("user", index, (current) => ({ ...current, visibility: state }))
         return
       }
       setStore("user", store.user.length, { ...model, visibility: state })
     }
 
     const visible = (model: ModelKey) => {
-      const key = `${model.providerID}:${model.modelID}`
+      const key = modelKey(model)
       const state = visibility().get(key)
       if (state === "hide") return false
       if (state === "show") return true
       if (latestSet().has(key)) return true
-      const m = find(model)
-      if (!m?.release_date || !DateTime.fromISO(m.release_date).isValid) return true
+      const date = release().get(key)
+      if (!date?.isValid) return true
       return false
     }
 
@@ -104,8 +127,8 @@ export const { use: useModels, provider: ModelsProvider } = createSimpleContext(
     }
 
     const push = (model: ModelKey) => {
-      const uniq = uniqueBy([model, ...store.recent], (x) => x.providerID + x.modelID)
-      if (uniq.length > 5) uniq.pop()
+      const uniq = uniqueBy([model, ...store.recent], (x) => `${x.providerID}:${x.modelID}`)
+      if (uniq.length > RECENT_LIMIT) uniq.pop()
       setStore("recent", uniq)
     }
 
diff --git a/packages/app/src/context/notification.tsx b/packages/app/src/context/notification.tsx
index cade70a53..e35e815f9 100644
--- a/packages/app/src/context/notification.tsx
+++ b/packages/app/src/context/notification.tsx
@@ -18,7 +18,7 @@ import { buildNotificationIndex } from "./notification-index"
 type NotificationBase = {
   directory?: string
   session?: string
-  metadata?: any
+  metadata?: unknown
   time: number
   viewed: boolean
 }
@@ -84,89 +84,93 @@ export const { use: useNotification, provider: NotificationProvider } = createSi
 
     const index = createMemo(() => buildNotificationIndex(store.list))
 
-    const lookup = (directory: string, sessionID?: string) => {
-      if (!sessionID) return Promise.resolve(undefined)
+    const lookup = async (directory: string, sessionID?: string) => {
+      if (!sessionID) return undefined
       const [syncStore] = globalSync.child(directory, { bootstrap: false })
       const match = Binary.search(syncStore.session, sessionID, (s) => s.id)
-      if (match.found) return Promise.resolve(syncStore.session[match.index])
+      if (match.found) return syncStore.session[match.index]
       return globalSDK.client.session
         .get({ directory, sessionID })
         .then((x) => x.data)
         .catch(() => undefined)
     }
 
+    const viewedInCurrentSession = (directory: string, sessionID?: string) => {
+      const activeDirectory = currentDirectory()
+      const activeSession = currentSession()
+      if (!activeDirectory) return false
+      if (!activeSession) return false
+      if (!sessionID) return false
+      if (directory !== activeDirectory) return false
+      return sessionID === activeSession
+    }
+
+    const handleSessionIdle = (directory: string, event: { properties: { sessionID?: string } }, time: number) => {
+      const sessionID = event.properties.sessionID
+      void lookup(directory, sessionID).then((session) => {
+        if (meta.disposed) return
+        if (!session) return
+        if (session.parentID) return
+
+        playSound(soundSrc(settings.sounds.agent()))
+
+        append({
+          directory,
+          time,
+          viewed: viewedInCurrentSession(directory, sessionID),
+          type: "turn-complete",
+          session: sessionID,
+        })
+
+        const href = `/${base64Encode(directory)}/session/${sessionID}`
+        if (settings.notifications.agent()) {
+          void platform.notify(language.t("notification.session.responseReady.title"), session.title ?? sessionID, href)
+        }
+      })
+    }
+
+    const handleSessionError = (
+      directory: string,
+      event: { properties: { sessionID?: string; error?: EventSessionError["properties"]["error"] } },
+      time: number,
+    ) => {
+      const sessionID = event.properties.sessionID
+      void lookup(directory, sessionID).then((session) => {
+        if (meta.disposed) return
+        if (session?.parentID) return
+
+        playSound(soundSrc(settings.sounds.errors()))
+
+        const error = "error" in event.properties ? event.properties.error : undefined
+        append({
+          directory,
+          time,
+          viewed: viewedInCurrentSession(directory, sessionID),
+          type: "error",
+          session: sessionID ?? "global",
+          error,
+        })
+        const description =
+          session?.title ??
+          (typeof error === "string" ? error : language.t("notification.session.error.fallbackDescription"))
+        const href = sessionID ? `/${base64Encode(directory)}/session/${sessionID}` : `/${base64Encode(directory)}`
+        if (settings.notifications.errors()) {
+          void platform.notify(language.t("notification.session.error.title"), description, href)
+        }
+      })
+    }
+
     const unsub = globalSDK.event.listen((e) => {
       const event = e.details
       if (event.type !== "session.idle" && event.type !== "session.error") return
 
       const directory = e.name
       const time = Date.now()
-      const viewed = (sessionID?: string) => {
-        const activeDirectory = currentDirectory()
-        const activeSession = currentSession()
-        if (!activeDirectory) return false
-        if (!activeSession) return false
-        if (!sessionID) return false
-        if (directory !== activeDirectory) return false
-        return sessionID === activeSession
-      }
-      switch (event.type) {
-        case "session.idle": {
-          const sessionID = event.properties.sessionID
-          void lookup(directory, sessionID).then((session) => {
-            if (meta.disposed) return
-            if (!session) return
-            if (session.parentID) return
-
-            playSound(soundSrc(settings.sounds.agent()))
-
-            append({
-              directory,
-              time,
-              viewed: viewed(sessionID),
-              type: "turn-complete",
-              session: sessionID,
-            })
-
-            const href = `/${base64Encode(directory)}/session/${sessionID}`
-            if (settings.notifications.agent()) {
-              void platform.notify(
-                language.t("notification.session.responseReady.title"),
-                session.title ?? sessionID,
-                href,
-              )
-            }
-          })
-          break
-        }
-        case "session.error": {
-          const sessionID = event.properties.sessionID
-          void lookup(directory, sessionID).then((session) => {
-            if (meta.disposed) return
-            if (session?.parentID) return
-
-            playSound(soundSrc(settings.sounds.errors()))
-
-            const error = "error" in event.properties ? event.properties.error : undefined
-            append({
-              directory,
-              time,
-              viewed: viewed(sessionID),
-              type: "error",
-              session: sessionID ?? "global",
-              error,
-            })
-            const description =
-              session?.title ??
-              (typeof error === "string" ? error : language.t("notification.session.error.fallbackDescription"))
-            const href = sessionID ? `/${base64Encode(directory)}/session/${sessionID}` : `/${base64Encode(directory)}`
-            if (settings.notifications.errors()) {
-              void platform.notify(language.t("notification.session.error.title"), description, href)
-            }
-          })
-          break
-        }
+      if (event.type === "session.idle") {
+        handleSessionIdle(directory, event, time)
+        return
       }
+      handleSessionError(directory, event, time)
     })
     onCleanup(() => {
       meta.disposed = true
diff --git a/packages/app/src/context/permission.tsx b/packages/app/src/context/permission.tsx
index a701dbd1f..988723834 100644
--- a/packages/app/src/context/permission.tsx
+++ b/packages/app/src/context/permission.tsx
@@ -33,7 +33,7 @@ function isNonAllowRule(rule: unknown) {
   return false
 }
 
-function hasAutoAcceptPermissionConfig(permission: unknown) {
+function hasPermissionPromptRules(permission: unknown) {
   if (!permission) return false
   if (typeof permission === "string") return permission !== "allow"
   if (typeof permission !== "object") return false
@@ -57,7 +57,7 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
       const directory = decode64(params.dir)
       if (!directory) return false
       const [store] = globalSync.child(directory)
-      return hasAutoAcceptPermissionConfig(store.config.permission)
+      return hasPermissionPromptRules(store.config.permission)
     })
 
     const [store, setStore, _, ready] = persisted(
@@ -70,6 +70,7 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
     const MAX_RESPONDED = 1000
     const RESPONDED_TTL_MS = 60 * 60 * 1000
     const responded = new Map<string, number>()
+    const enableVersion = new Map<string, number>()
 
     function pruneResponded(now: number) {
       for (const [id, ts] of responded) {
@@ -114,6 +115,13 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
       return store.autoAcceptEdits[key] ?? store.autoAcceptEdits[sessionID] ?? false
     }
 
+    function bumpEnableVersion(sessionID: string, directory?: string) {
+      const key = acceptKey(sessionID, directory)
+      const next = (enableVersion.get(key) ?? 0) + 1
+      enableVersion.set(key, next)
+      return next
+    }
+
     const unsubscribe = globalSDK.event.listen((e) => {
       const event = e.details
       if (event?.type !== "permission.asked") return
@@ -128,6 +136,7 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
 
     function enable(sessionID: string, directory: string) {
       const key = acceptKey(sessionID, directory)
+      const version = bumpEnableVersion(sessionID, directory)
       setStore(
         produce((draft) => {
           draft.autoAcceptEdits[key] = true
@@ -138,6 +147,8 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
       globalSDK.client.permission
         .list({ directory })
         .then((x) => {
+          if (enableVersion.get(key) !== version) return
+          if (!isAutoAccepting(sessionID, directory)) return
           for (const perm of x.data ?? []) {
             if (!perm?.id) continue
             if (perm.sessionID !== sessionID) continue
@@ -149,6 +160,7 @@ export const { use: usePermission, provider: PermissionProvider } = createSimple
     }
 
     function disable(sessionID: string, directory?: string) {
+      bumpEnableVersion(sessionID, directory)
       const key = directory ? acceptKey(sessionID, directory) : undefined
       setStore(
         produce((draft) => {
diff --git a/packages/app/src/context/platform.tsx b/packages/app/src/context/platform.tsx
index e260c1977..6d4464258 100644
--- a/packages/app/src/context/platform.tsx
+++ b/packages/app/src/context/platform.tsx
@@ -2,6 +2,12 @@ import { createSimpleContext } from "@opencode-ai/ui/context"
 import { AsyncStorage, SyncStorage } from "@solid-primitives/storage"
 import type { Accessor } from "solid-js"
 
+type PickerPaths = string | string[] | null
+type OpenDirectoryPickerOptions = { title?: string; multiple?: boolean }
+type OpenFilePickerOptions = { title?: string; multiple?: boolean }
+type SaveFilePickerOptions = { title?: string; defaultPath?: string }
+type UpdateInfo = { updateAvailable: boolean; version?: string }
+
 export type Platform = {
   /** Platform discriminator */
   platform: "web" | "desktop"
@@ -31,19 +37,19 @@ export type Platform = {
   notify(title: string, description?: string, href?: string): Promise<void>
 
   /** Open directory picker dialog (native on Tauri, server-backed on web) */
-  openDirectoryPickerDialog?(opts?: { title?: string; multiple?: boolean }): Promise<string | string[] | null>
+  openDirectoryPickerDialog?(opts?: OpenDirectoryPickerOptions): Promise<PickerPaths>
 
   /** Open native file picker dialog (Tauri only) */
-  openFilePickerDialog?(opts?: { title?: string; multiple?: boolean }): Promise<string | string[] | null>
+  openFilePickerDialog?(opts?: OpenFilePickerOptions): Promise<PickerPaths>
 
   /** Save file picker dialog (Tauri only) */
-  saveFilePickerDialog?(opts?: { title?: string; defaultPath?: string }): Promise<string | null>
+  saveFilePickerDialog?(opts?: SaveFilePickerOptions): Promise<string | null>
 
   /** Storage mechanism, defaults to localStorage */
   storage?: (name?: string) => SyncStorage | AsyncStorage
 
   /** Check for updates (Tauri only) */
-  checkUpdate?(): Promise<{ updateAvailable: boolean; version?: string }>
+  checkUpdate?(): Promise<UpdateInfo>
 
   /** Install updates (Tauri only) */
   update?(): Promise<void>
diff --git a/packages/app/src/context/prompt.tsx b/packages/app/src/context/prompt.tsx
index 99fab6c19..064892105 100644
--- a/packages/app/src/context/prompt.tsx
+++ b/packages/app/src/context/prompt.tsx
@@ -1,4 +1,4 @@
-import { createStore } from "solid-js/store"
+import { createStore, type SetStoreFunction } from "solid-js/store"
 import { createSimpleContext } from "@opencode-ai/ui/context"
 import { batch, createMemo, createRoot, onCleanup } from "solid-js"
 import { useParams } from "@solidjs/router"
@@ -60,27 +60,23 @@ function isSelectionEqual(a?: FileSelection, b?: FileSelection) {
   )
 }
 
+function isPartEqual(partA: ContentPart, partB: ContentPart) {
+  switch (partA.type) {
+    case "text":
+      return partB.type === "text" && partA.content === partB.content
+    case "file":
+      return partB.type === "file" && partA.path === partB.path && isSelectionEqual(partA.selection, partB.selection)
+    case "agent":
+      return partB.type === "agent" && partA.name === partB.name
+    case "image":
+      return partB.type === "image" && partA.id === partB.id
+  }
+}
+
 export function isPromptEqual(promptA: Prompt, promptB: Prompt): boolean {
   if (promptA.length !== promptB.length) return false
   for (let i = 0; i < promptA.length; i++) {
-    const partA = promptA[i]
-    const partB = promptB[i]
-    if (partA.type !== partB.type) return false
-    if (partA.type === "text" && partA.content !== (partB as TextPart).content) {
-      return false
-    }
-    if (partA.type === "file") {
-      const fileA = partA as FileAttachmentPart
-      const fileB = partB as FileAttachmentPart
-      if (fileA.path !== fileB.path) return false
-      if (!isSelectionEqual(fileA.selection, fileB.selection)) return false
-    }
-    if (partA.type === "agent" && partA.name !== (partB as AgentPart).name) {
-      return false
-    }
-    if (partA.type === "image" && partA.id !== (partB as ImageAttachmentPart).id) {
-      return false
-    }
+    if (!isPartEqual(promptA[i], promptB[i])) return false
   }
   return true
 }
@@ -104,6 +100,48 @@ function clonePrompt(prompt: Prompt): Prompt {
   return prompt.map(clonePart)
 }
 
+function contextItemKey(item: ContextItem) {
+  if (item.type !== "file") return item.type
+  const start = item.selection?.startLine
+  const end = item.selection?.endLine
+  const key = `${item.type}:${item.path}:${start}:${end}`
+
+  if (item.commentID) {
+    return `${key}:c=${item.commentID}`
+  }
+
+  const comment = item.comment?.trim()
+  if (!comment) return key
+  const digest = checksum(comment) ?? comment
+  return `${key}:c=${digest.slice(0, 8)}`
+}
+
+function createPromptActions(
+  setStore: SetStoreFunction<{
+    prompt: Prompt
+    cursor?: number
+    context: {
+      items: (ContextItem & { key: string })[]
+    }
+  }>,
+) {
+  return {
+    set(prompt: Prompt, cursorPosition?: number) {
+      const next = clonePrompt(prompt)
+      batch(() => {
+        setStore("prompt", next)
+        if (cursorPosition !== undefined) setStore("cursor", cursorPosition)
+      })
+    },
+    reset() {
+      batch(() => {
+        setStore("prompt", clonePrompt(DEFAULT_PROMPT))
+        setStore("cursor", 0)
+      })
+    },
+  }
+}
+
 const WORKSPACE_KEY = "__workspace__"
 const MAX_PROMPT_SESSIONS = 20
 
@@ -134,21 +172,7 @@ function createPromptSession(dir: string, id: string | undefined) {
     }),
   )
 
-  function keyForItem(item: ContextItem) {
-    if (item.type !== "file") return item.type
-    const start = item.selection?.startLine
-    const end = item.selection?.endLine
-    const key = `${item.type}:${item.path}:${start}:${end}`
-
-    if (item.commentID) {
-      return `${key}:c=${item.commentID}`
-    }
-
-    const comment = item.comment?.trim()
-    if (!comment) return key
-    const digest = checksum(comment) ?? comment
-    return `${key}:c=${digest.slice(0, 8)}`
-  }
+  const actions = createPromptActions(setStore)
 
   return {
     ready,
@@ -158,7 +182,7 @@ function createPromptSession(dir: string, id: string | undefined) {
     context: {
       items: createMemo(() => store.context.items),
       add(item: ContextItem) {
-        const key = keyForItem(item)
+        const key = contextItemKey(item)
         if (store.context.items.find((x) => x.key === key)) return
         setStore("context", "items", (items) => [...items, { key, ...item }])
       },
@@ -166,19 +190,8 @@ function createPromptSession(dir: string, id: string | undefined) {
         setStore("context", "items", (items) => items.filter((x) => x.key !== key))
       },
     },
-    set(prompt: Prompt, cursorPosition?: number) {
-      const next = clonePrompt(prompt)
-      batch(() => {
-        setStore("prompt", next)
-        if (cursorPosition !== undefined) setStore("cursor", cursorPosition)
-      })
-    },
-    reset() {
-      batch(() => {
-        setStore("prompt", clonePrompt(DEFAULT_PROMPT))
-        setStore("cursor", 0)
-      })
-    },
+    set: actions.set,
+    reset: actions.reset,
   }
 }
 
diff --git a/packages/app/src/context/sdk.tsx b/packages/app/src/context/sdk.tsx
index 3a404ec93..555933619 100644
--- a/packages/app/src/context/sdk.tsx
+++ b/packages/app/src/context/sdk.tsx
@@ -5,6 +5,10 @@ import { createEffect, createMemo, onCleanup, type Accessor } from "solid-js"
 import { useGlobalSDK } from "./global-sdk"
 import { usePlatform } from "./platform"
 
+type SDKEventMap = {
+  [key in Event["type"]]: Extract<Event, { type: key }>
+}
+
 export const { use: useSDK, provider: SDKProvider } = createSimpleContext({
   name: "SDK",
   init: (props: { directory: Accessor<string> }) => {
@@ -21,9 +25,7 @@ export const { use: useSDK, provider: SDKProvider } = createSimpleContext({
       }),
     )
 
-    const emitter = createGlobalEmitter<{
-      [key in Event["type"]]: Extract<Event, { type: key }>
-    }>()
+    const emitter = createGlobalEmitter<SDKEventMap>()
 
     createEffect(() => {
       const unsub = globalSDK.event.on(directory(), (event) => {
diff --git a/packages/app/src/context/server.tsx b/packages/app/src/context/server.tsx
index 351407d91..5d3d0cf3a 100644
--- a/packages/app/src/context/server.tsx
+++ b/packages/app/src/context/server.tsx
@@ -6,6 +6,7 @@ import { Persist, persisted } from "@/utils/persist"
 import { checkServerHealth } from "@/utils/server-health"
 
 type StoredProject = { worktree: string; expanded: boolean }
+const HEALTH_POLL_INTERVAL_MS = 10_000
 
 export function normalizeServerUrl(input: string) {
   const trimmed = input.trim()
@@ -48,81 +49,51 @@ export const { use: useServer, provider: ServerProvider } = createSimpleContext(
 
     const healthy = () => state.healthy
 
-    function setActive(input: string) {
-      const url = normalizeServerUrl(input)
-      if (!url) return
-      setState("active", url)
-    }
+    const defaultUrl = () => normalizeServerUrl(props.defaultUrl)
 
-    function add(input: string) {
-      const url = normalizeServerUrl(input)
-      if (!url) return
+    function reconcileStartup() {
+      const fallback = defaultUrl()
+      if (!fallback) return
 
-      const fallback = normalizeServerUrl(props.defaultUrl)
-      if (fallback && url === fallback) {
+      const previousSidecarUrl = normalizeServerUrl(store.currentSidecarUrl)
+      const list = previousSidecarUrl ? store.list.filter((url) => url !== previousSidecarUrl) : store.list
+      if (!props.isSidecar) {
         batch(() => {
-          if (!store.list.includes(url)) {
-            // Add the fallback url to the list if it's not already in the list
-            setStore("list", store.list.length, url)
-          }
-          setState("active", url)
+          setStore("list", list)
+          if (store.currentSidecarUrl) setStore("currentSidecarUrl", "")
+          setState("active", fallback)
         })
         return
       }
 
+      const nextList = list.includes(fallback) ? list : [...list, fallback]
       batch(() => {
-        if (!store.list.includes(url)) {
-          setStore("list", store.list.length, url)
-        }
-        setState("active", url)
+        setStore("list", nextList)
+        setStore("currentSidecarUrl", fallback)
+        setState("active", fallback)
       })
     }
 
-    function remove(input: string) {
-      const url = normalizeServerUrl(input)
-      if (!url) return
-
-      const list = store.list.filter((x) => x !== url)
-      const next = state.active === url ? (list[0] ?? normalizeServerUrl(props.defaultUrl) ?? "") : state.active
-
-      batch(() => {
-        setStore("list", list)
-        setState("active", next)
-      })
-    }
+    function updateServerList(url: string, remove = false) {
+      if (remove) {
+        const list = store.list.filter((x) => x !== url)
+        const next = state.active === url ? (list[0] ?? defaultUrl() ?? "") : state.active
+        batch(() => {
+          setStore("list", list)
+          setState("active", next)
+        })
+        return
+      }
 
-    createEffect(() => {
-      if (!ready()) return
-      if (state.active) return
-      const url = normalizeServerUrl(props.defaultUrl)
-      if (!url) return
       batch(() => {
-        // Remove the previous startup sidecar url
-        if (store.currentSidecarUrl) {
-          remove(store.currentSidecarUrl)
-        }
-
-        // Add the new sidecar url
-        if (props.isSidecar && props.defaultUrl) {
-          add(props.defaultUrl)
-          setStore("currentSidecarUrl", props.defaultUrl)
+        if (!store.list.includes(url)) {
+          setStore("list", store.list.length, url)
         }
-
         setState("active", url)
       })
-    })
-
-    const isReady = createMemo(() => ready() && !!state.active)
-
-    const fetcher = platform.fetch ?? globalThis.fetch
-    const check = (url: string) => checkServerHealth(url, fetcher).then((x) => x.healthy)
-
-    createEffect(() => {
-      const url = state.active
-      if (!url) return
-
-      setState("healthy", undefined)
+    }
 
+    function startHealthPolling(url: string) {
       let alive = true
       let busy = false
 
@@ -140,12 +111,48 @@ export const { use: useServer, provider: ServerProvider } = createSimpleContext(
       }
 
       run()
-      const interval = setInterval(run, 10_000)
-
-      onCleanup(() => {
+      const interval = setInterval(run, HEALTH_POLL_INTERVAL_MS)
+      return () => {
         alive = false
         clearInterval(interval)
-      })
+      }
+    }
+
+    function setActive(input: string) {
+      const url = normalizeServerUrl(input)
+      if (!url) return
+      setState("active", url)
+    }
+
+    function add(input: string) {
+      const url = normalizeServerUrl(input)
+      if (!url) return
+      updateServerList(url)
+    }
+
+    function remove(input: string) {
+      const url = normalizeServerUrl(input)
+      if (!url) return
+      updateServerList(url, true)
+    }
+
+    createEffect(() => {
+      if (!ready()) return
+      if (state.active) return
+      reconcileStartup()
+    })
+
+    const isReady = createMemo(() => ready() && !!state.active)
+
+    const fetcher = platform.fetch ?? globalThis.fetch
+    const check = (url: string) => checkServerHealth(url, fetcher).then((x) => x.healthy)
+
+    createEffect(() => {
+      const url = state.active
+      if (!url) return
+
+      setState("healthy", undefined)
+      onCleanup(startHealthPolling(url))
     })
 
     const origin = createMemo(() => projectsKey(state.active))
diff --git a/packages/app/src/context/settings.tsx b/packages/app/src/context/settings.tsx
index 19b3846f8..a8efb1eac 100644
--- a/packages/app/src/context/settings.tsx
+++ b/packages/app/src/context/settings.tsx
@@ -85,6 +85,10 @@ export function monoFontFamily(font: string | undefined) {
   return monoFonts[font ?? defaultSettings.appearance.font] ?? monoFonts[defaultSettings.appearance.font]
 }
 
+function withFallback<T>(read: () => T | undefined, fallback: T) {
+  return createMemo(() => read() ?? fallback)
+}
+
 export const { use: useSettings, provider: SettingsProvider } = createSimpleContext({
   name: "Settings",
   init: () => {
@@ -101,27 +105,27 @@ export const { use: useSettings, provider: SettingsProvider } = createSimpleCont
         return store
       },
       general: {
-        autoSave: createMemo(() => store.general?.autoSave ?? defaultSettings.general.autoSave),
+        autoSave: withFallback(() => store.general?.autoSave, defaultSettings.general.autoSave),
         setAutoSave(value: boolean) {
           setStore("general", "autoSave", value)
         },
-        releaseNotes: createMemo(() => store.general?.releaseNotes ?? defaultSettings.general.releaseNotes),
+        releaseNotes: withFallback(() => store.general?.releaseNotes, defaultSettings.general.releaseNotes),
         setReleaseNotes(value: boolean) {
           setStore("general", "releaseNotes", value)
         },
       },
       updates: {
-        startup: createMemo(() => store.updates?.startup ?? defaultSettings.updates.startup),
+        startup: withFallback(() => store.updates?.startup, defaultSettings.updates.startup),
         setStartup(value: boolean) {
           setStore("updates", "startup", value)
         },
       },
       appearance: {
-        fontSize: createMemo(() => store.appearance?.fontSize ?? defaultSettings.appearance.fontSize),
+        fontSize: withFallback(() => store.appearance?.fontSize, defaultSettings.appearance.fontSize),
         setFontSize(value: number) {
           setStore("appearance", "fontSize", value)
         },
-        font: createMemo(() => store.appearance?.font ?? defaultSettings.appearance.font),
+        font: withFallback(() => store.appearance?.font, defaultSettings.appearance.font),
         setFont(value: string) {
           setStore("appearance", "font", value)
         },
@@ -132,42 +136,47 @@ export const { use: useSettings, provider: SettingsProvider } = createSimpleCont
           setStore("keybinds", action, keybind)
         },
         reset(action: string) {
-          setStore("keybinds", action, undefined!)
+          setStore("keybinds", (current) => {
+            if (!Object.prototype.hasOwnProperty.call(current, action)) return current
+            const next = { ...current }
+            delete next[action]
+            return next
+          })
         },
         resetAll() {
           setStore("keybinds", reconcile({}))
         },
       },
       permissions: {
-        autoApprove: createMemo(() => store.permissions?.autoApprove ?? defaultSettings.permissions.autoApprove),
+        autoApprove: withFallback(() => store.permissions?.autoApprove, defaultSettings.permissions.autoApprove),
         setAutoApprove(value: boolean) {
           setStore("permissions", "autoApprove", value)
         },
       },
       notifications: {
-        agent: createMemo(() => store.notifications?.agent ?? defaultSettings.notifications.agent),
+        agent: withFallback(() => store.notifications?.agent, defaultSettings.notifications.agent),
         setAgent(value: boolean) {
           setStore("notifications", "agent", value)
         },
-        permissions: createMemo(() => store.notifications?.permissions ?? defaultSettings.notifications.permissions),
+        permissions: withFallback(() => store.notifications?.permissions, defaultSettings.notifications.permissions),
         setPermissions(value: boolean) {
           setStore("notifications", "permissions", value)
         },
-        errors: createMemo(() => store.notifications?.errors ?? defaultSettings.notifications.errors),
+        errors: withFallback(() => store.notifications?.errors, defaultSettings.notifications.errors),
         setErrors(value: boolean) {
           setStore("notifications", "errors", value)
         },
       },
       sounds: {
-        agent: createMemo(() => store.sounds?.agent ?? defaultSettings.sounds.agent),
+        agent: withFallback(() => store.sounds?.agent, defaultSettings.sounds.agent),
         setAgent(value: string) {
           setStore("sounds", "agent", value)
         },
-        permissions: createMemo(() => store.sounds?.permissions ?? defaultSettings.sounds.permissions),
+        permissions: withFallback(() => store.sounds?.permissions, defaultSettings.sounds.permissions),
         setPermissions(value: string) {
           setStore("sounds", "permissions", value)
         },
-        errors: createMemo(() => store.sounds?.errors ?? defaultSettings.sounds.errors),
+        errors: withFallback(() => store.sounds?.errors, defaultSettings.sounds.errors),
         setErrors(value: string) {
           setStore("sounds", "errors", value)
         },
diff --git a/packages/app/src/context/sync.tsx b/packages/app/src/context/sync.tsx
index 66c53dc80..e5916598b 100644
--- a/packages/app/src/context/sync.tsx
+++ b/packages/app/src/context/sync.tsx
@@ -7,6 +7,20 @@ import { useGlobalSync } from "./global-sync"
 import { useSDK } from "./sdk"
 import type { Message, Part } from "@opencode-ai/sdk/v2/client"
 
+function sortParts(parts: Part[]) {
+  return parts.filter((part) => !!part?.id).sort((a, b) => cmp(a.id, b.id))
+}
+
+function runInflight(map: Map<string, Promise<void>>, key: string, task: () => Promise<void>) {
+  const pending = map.get(key)
+  if (pending) return pending
+  const promise = task().finally(() => {
+    map.delete(key)
+  })
+  map.set(key, promise)
+  return promise
+}
+
 const keyFor = (directory: string, id: string) => `${directory}\n${id}`
 
 const cmp = (a: string, b: string) => (a < b ? -1 : a > b ? 1 : 0)
@@ -36,7 +50,7 @@ export function applyOptimisticAdd(draft: OptimisticStore, input: OptimisticAddI
     const result = Binary.search(messages, input.message.id, (m) => m.id)
     messages.splice(result.index, 0, input.message)
   }
-  draft.part[input.message.id] = input.parts.filter((part) => !!part?.id).sort((a, b) => cmp(a.id, b.id))
+  draft.part[input.message.id] = sortParts(input.parts)
 }
 
 export function applyOptimisticRemove(draft: OptimisticStore, input: OptimisticRemoveInput) {
@@ -48,6 +62,34 @@ export function applyOptimisticRemove(draft: OptimisticStore, input: OptimisticR
   delete draft.part[input.messageID]
 }
 
+function setOptimisticAdd(setStore: (...args: unknown[]) => void, input: OptimisticAddInput) {
+  setStore("message", input.sessionID, (messages: Message[] | undefined) => {
+    if (!messages) return [input.message]
+    const result = Binary.search(messages, input.message.id, (m) => m.id)
+    const next = [...messages]
+    next.splice(result.index, 0, input.message)
+    return next
+  })
+  setStore("part", input.message.id, sortParts(input.parts))
+}
+
+function setOptimisticRemove(setStore: (...args: unknown[]) => void, input: OptimisticRemoveInput) {
+  setStore("message", input.sessionID, (messages: Message[] | undefined) => {
+    if (!messages) return messages
+    const result = Binary.search(messages, input.messageID, (m) => m.id)
+    if (!result.found) return messages
+    const next = [...messages]
+    next.splice(result.index, 1)
+    return next
+  })
+  setStore("part", (part: Record<string, Part[] | undefined>) => {
+    if (!(input.messageID in part)) return part
+    const next = { ...part }
+    delete next[input.messageID]
+    return next
+  })
+}
+
 export const { use: useSync, provider: SyncProvider } = createSimpleContext({
   name: "Sync",
   init: () => {
@@ -63,7 +105,7 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
       return globalSync.child(directory)
     }
     const absolute = (path: string) => (current()[0].path.directory + "/" + path).replace("//", "/")
-    const chunk = 400
+    const messagePageSize = 400
     const inflight = new Map<string, Promise<void>>()
     const inflightDiff = new Map<string, Promise<void>>()
     const inflightTodo = new Map<string, Promise<void>>()
@@ -81,8 +123,25 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
     }
 
     const limitFor = (count: number) => {
-      if (count <= chunk) return chunk
-      return Math.ceil(count / chunk) * chunk
+      if (count <= messagePageSize) return messagePageSize
+      return Math.ceil(count / messagePageSize) * messagePageSize
+    }
+
+    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 }),
+      )
+      const items = (messages.data ?? []).filter((x) => !!x?.info?.id)
+      const session = items
+        .map((x) => x.info)
+        .filter((m) => !!m?.id)
+        .sort((a, b) => cmp(a.id, b.id))
+      const part = items.map((message) => ({ id: message.info.id, part: sortParts(message.parts) }))
+      return {
+        session,
+        part,
+        complete: session.length < input.limit,
+      }
     }
 
     const loadMessages = async (input: {
@@ -96,30 +155,15 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
       if (meta.loading[key]) return
 
       setMeta("loading", key, true)
-      await retry(() => input.client.session.messages({ sessionID: input.sessionID, limit: input.limit }))
-        .then((messages) => {
-          const items = (messages.data ?? []).filter((x) => !!x?.info?.id)
-          const next = items
-            .map((x) => x.info)
-            .filter((m) => !!m?.id)
-            .sort((a, b) => cmp(a.id, b.id))
-
+      await fetchMessages(input)
+        .then((next) => {
           batch(() => {
-            input.setStore("message", input.sessionID, reconcile(next, { key: "id" }))
-
-            for (const message of items) {
-              input.setStore(
-                "part",
-                message.info.id,
-                reconcile(
-                  message.parts.filter((p) => !!p?.id).sort((a, b) => cmp(a.id, b.id)),
-                  { key: "id" },
-                ),
-              )
+            input.setStore("message", input.sessionID, reconcile(next.session, { key: "id" }))
+            for (const message of next.part) {
+              input.setStore("part", message.id, reconcile(message.part, { key: "id" }))
             }
-
             setMeta("limit", key, input.limit)
-            setMeta("complete", key, next.length < input.limit)
+            setMeta("complete", key, next.complete)
           })
         })
         .finally(() => {
@@ -151,19 +195,11 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
         optimistic: {
           add(input: { directory?: string; sessionID: string; message: Message; parts: Part[] }) {
             const [, setStore] = target(input.directory)
-            setStore(
-              produce((draft) => {
-                applyOptimisticAdd(draft as OptimisticStore, input)
-              }),
-            )
+            setOptimisticAdd(setStore as (...args: unknown[]) => void, input)
           },
           remove(input: { directory?: string; sessionID: string; messageID: string }) {
             const [, setStore] = target(input.directory)
-            setStore(
-              produce((draft) => {
-                applyOptimisticRemove(draft as OptimisticStore, input)
-              }),
-            )
+            setOptimisticRemove(setStore as (...args: unknown[]) => void, input)
           },
         },
         addOptimisticMessage(input: {
@@ -182,15 +218,11 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
             model: input.model,
           }
           const [, setStore] = target()
-          setStore(
-            produce((draft) => {
-              applyOptimisticAdd(draft as OptimisticStore, {
-                sessionID: input.sessionID,
-                message,
-                parts: input.parts,
-              })
-            }),
-          )
+          setOptimisticAdd(setStore as (...args: unknown[]) => void, {
+            sessionID: input.sessionID,
+            message,
+            parts: input.parts,
+          })
         },
         async sync(sessionID: string) {
           const directory = sdk.directory
@@ -205,11 +237,9 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
           const hasMessages = store.message[sessionID] !== undefined
           const hydrated = meta.limit[key] !== undefined
           if (hasSession && hasMessages && hydrated) return
-          const pending = inflight.get(key)
-          if (pending) return pending
 
           const count = store.message[sessionID]?.length ?? 0
-          const limit = hydrated ? (meta.limit[key] ?? chunk) : limitFor(count)
+          const limit = hydrated ? (meta.limit[key] ?? messagePageSize) : limitFor(count)
 
           const sessionReq = hasSession
             ? Promise.resolve()
@@ -240,14 +270,7 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
                   limit,
                 })
 
-          const promise = Promise.all([sessionReq, messagesReq])
-            .then(() => {})
-            .finally(() => {
-              inflight.delete(key)
-            })
-
-          inflight.set(key, promise)
-          return promise
+          return runInflight(inflight, key, () => Promise.all([sessionReq, messagesReq]).then(() => {}))
         },
         async diff(sessionID: string) {
           const directory = sdk.directory
@@ -256,19 +279,11 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
           if (store.session_diff[sessionID] !== undefined) return
 
           const key = keyFor(directory, sessionID)
-          const pending = inflightDiff.get(key)
-          if (pending) return pending
-
-          const promise = retry(() => client.session.diff({ sessionID }))
-            .then((diff) => {
+          return runInflight(inflightDiff, key, () =>
+            retry(() => client.session.diff({ sessionID })).then((diff) => {
               setStore("session_diff", sessionID, reconcile(diff.data ?? [], { key: "file" }))
-            })
-            .finally(() => {
-              inflightDiff.delete(key)
-            })
-
-          inflightDiff.set(key, promise)
-          return promise
+            }),
+          )
         },
         async todo(sessionID: string) {
           const directory = sdk.directory
@@ -277,19 +292,11 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
           if (store.todo[sessionID] !== undefined) return
 
           const key = keyFor(directory, sessionID)
-          const pending = inflightTodo.get(key)
-          if (pending) return pending
-
-          const promise = retry(() => client.session.todo({ sessionID }))
-            .then((todo) => {
+          return runInflight(inflightTodo, key, () =>
+            retry(() => client.session.todo({ sessionID })).then((todo) => {
               setStore("todo", sessionID, reconcile(todo.data ?? [], { key: "id" }))
-            })
-            .finally(() => {
-              inflightTodo.delete(key)
-            })
-
-          inflightTodo.set(key, promise)
-          return promise
+            }),
+          )
         },
         history: {
           more(sessionID: string) {
@@ -304,7 +311,7 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
             const key = keyFor(sdk.directory, sessionID)
             return meta.loading[key] ?? false
           },
-          async loadMore(sessionID: string, count = chunk) {
+          async loadMore(sessionID: string, count = messagePageSize) {
             const directory = sdk.directory
             const client = sdk.client
             const [, setStore] = globalSync.child(directory)
@@ -312,7 +319,7 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
             if (meta.loading[key]) return
             if (meta.complete[key]) return
 
-            const currentLimit = meta.limit[key] ?? chunk
+            const currentLimit = meta.limit[key] ?? messagePageSize
             await loadMessages({
               directory,
               client,
diff --git a/packages/app/src/context/terminal.tsx b/packages/app/src/context/terminal.tsx
index c7816158c..0e6aa08cb 100644
--- a/packages/app/src/context/terminal.tsx
+++ b/packages/app/src/context/terminal.tsx
@@ -79,19 +79,38 @@ function createWorkspaceTerminalSession(sdk: ReturnType<typeof useSDK>, dir: str
     }),
   )
 
-  const unsub = sdk.event.on("pty.exited", (event: { properties: { id: string } }) => {
-    const id = event.properties.id
-    if (!store.all.some((x) => x.id === id)) return
+  const pickNextTerminalNumber = () => {
+    const existingTitleNumbers = new Set(
+      store.all.flatMap((pty) => {
+        const direct = Number.isFinite(pty.titleNumber) && pty.titleNumber > 0 ? pty.titleNumber : undefined
+        if (direct !== undefined) return [direct]
+        const parsed = numberFromTitle(pty.title)
+        if (parsed === undefined) return []
+        return [parsed]
+      }),
+    )
+
+    return (
+      Array.from({ length: existingTitleNumbers.size + 1 }, (_, index) => index + 1).find(
+        (number) => !existingTitleNumbers.has(number),
+      ) ?? 1
+    )
+  }
+
+  const removeExited = (id: string) => {
+    const all = store.all
+    const index = all.findIndex((x) => x.id === id)
+    if (index === -1) return
+    const filtered = all.filter((x) => x.id !== id)
+    const active = store.active === id ? filtered[0]?.id : store.active
     batch(() => {
-      setStore(
-        "all",
-        store.all.filter((x) => x.id !== id),
-      )
-      if (store.active === id) {
-        const remaining = store.all.filter((x) => x.id !== id)
-        setStore("active", remaining[0]?.id)
-      }
+      setStore("all", filtered)
+      setStore("active", active)
     })
+  }
+
+  const unsub = sdk.event.on("pty.exited", (event: { properties: { id: string } }) => {
+    removeExited(event.properties.id)
   })
   onCleanup(unsub)
 
@@ -117,7 +136,7 @@ function createWorkspaceTerminalSession(sdk: ReturnType<typeof useSDK>, dir: str
 
   return {
     ready,
-    all: createMemo(() => Object.values(store.all)),
+    all: createMemo(() => store.all),
     active: createMemo(() => store.active),
     clear() {
       batch(() => {
@@ -126,20 +145,7 @@ function createWorkspaceTerminalSession(sdk: ReturnType<typeof useSDK>, dir: str
       })
     },
     new() {
-      const existingTitleNumbers = new Set(
-        store.all.flatMap((pty) => {
-          const direct = Number.isFinite(pty.titleNumber) && pty.titleNumber > 0 ? pty.titleNumber : undefined
-          if (direct !== undefined) return [direct]
-          const parsed = numberFromTitle(pty.title)
-          if (parsed === undefined) return []
-          return [parsed]
-        }),
-      )
-
-      const nextNumber =
-        Array.from({ length: existingTitleNumbers.size + 1 }, (_, index) => index + 1).find(
-          (number) => !existingTitleNumbers.has(number),
-        ) ?? 1
+      const nextNumber = pickNextTerminalNumber()
 
       sdk.client.pty
         .create({ title: `Terminal ${nextNumber}` })
@@ -162,10 +168,8 @@ function createWorkspaceTerminalSession(sdk: ReturnType<typeof useSDK>, dir: str
         })
     },
     update(pty: Partial<LocalPTY> & { id: string }) {
-      const index = store.all.findIndex((x) => x.id === pty.id)
-      if (index !== -1) {
-        setStore("all", index, (existing) => ({ ...existing, ...pty }))
-      }
+      const previous = store.all.find((x) => x.id === pty.id)
+      if (previous) setStore("all", (all) => all.map((item) => (item.id === pty.id ? { ...item, ...pty } : item)))
       sdk.client.pty
         .update({
           ptyID: pty.id,
@@ -173,6 +177,9 @@ function createWorkspaceTerminalSession(sdk: ReturnType<typeof useSDK>, dir: str
           size: pty.cols && pty.rows ? { rows: pty.rows, cols: pty.cols } : undefined,
         })
         .catch((error: unknown) => {
+          if (previous) {
+            setStore("all", (all) => all.map((item) => (item.id === pty.id ? previous : item)))
+          }
           console.error("Failed to update terminal", error)
         })
     },