diff --git a/apps/desktop/electron/main.ts b/apps/desktop/electron/main.ts
index 21f690ccd0..5e2180a152 100644
--- a/apps/desktop/electron/main.ts
+++ b/apps/desktop/electron/main.ts
@@ -2992,9 +2992,7 @@ async function processStartMarker(pid) {
 
   if (IS_WINDOWS) {
     const electronMarker =
-      pid === process.pid
-        ? electronProcessStartMarker(pid, process.pid, process.getCreationTime?.())
-        : null
+      pid === process.pid ? electronProcessStartMarker(pid, process.pid, process.getCreationTime?.()) : null
 
     if (electronMarker) {
       return electronMarker
diff --git a/apps/desktop/electron/parent-process-identity.test.ts b/apps/desktop/electron/parent-process-identity.test.ts
index 107f1825a4..fd46025c7d 100644
--- a/apps/desktop/electron/parent-process-identity.test.ts
+++ b/apps/desktop/electron/parent-process-identity.test.ts
@@ -23,10 +23,7 @@ test('parent marker resolver shares and caches a successful probe', async () =>
   const load = vi.fn(async () => 'winms:1723456789123')
   const resolve = createParentStartMarkerResolver({ load })
 
-  assert.deepEqual(await Promise.all([resolve(), resolve()]), [
-    'winms:1723456789123',
-    'winms:1723456789123'
-  ])
+  assert.deepEqual(await Promise.all([resolve(), resolve()]), ['winms:1723456789123', 'winms:1723456789123'])
   assert.equal(await resolve(), 'winms:1723456789123')
   assert.equal(load.mock.calls.length, 1)
 })
@@ -34,7 +31,8 @@ test('parent marker resolver shares and caches a successful probe', async () =>
 test('parent marker resolver degrades a failed probe and retries later', async () => {
   const failure = new Error('powershell timed out')
 
-  const load = vi.fn<() => Promise<string>>()
+  const load = vi
+    .fn<() => Promise<string>>()
     .mockRejectedValueOnce(failure)
     .mockResolvedValueOnce('win:638908765432100000')
 
diff --git a/apps/desktop/electron/parent-process-identity.ts b/apps/desktop/electron/parent-process-identity.ts
index 954a890120..0aa8956aca 100644
--- a/apps/desktop/electron/parent-process-identity.ts
+++ b/apps/desktop/electron/parent-process-identity.ts
@@ -14,11 +14,7 @@ export interface ParentStartMarkerResolverOptions {
  * an OS helper. Electron reports milliseconds since the Unix epoch; the Python
  * watchdog converts its exact Windows FILETIME to the same representation.
  */
-export function electronProcessStartMarker(
-  pid: number,
-  ownPid: number,
-  creationTime: unknown
-): string | null {
+export function electronProcessStartMarker(pid: number, ownPid: number, creationTime: unknown): string | null {
   if (pid !== ownPid || typeof creationTime !== 'number' || !Number.isFinite(creationTime)) {
     return null
   }
diff --git a/apps/desktop/electron/venv-blocker-scan.test.ts b/apps/desktop/electron/venv-blocker-scan.test.ts
index a74a309696..9eaa22c26c 100644
--- a/apps/desktop/electron/venv-blocker-scan.test.ts
+++ b/apps/desktop/electron/venv-blocker-scan.test.ts
@@ -57,9 +57,7 @@ describe('formatBlockerMessage', () => {
   it('includes PID, name, cmdline, remote-client warning, and retry suggestion', () => {
     const msg = formatBlockerMessage({
       blocked: true,
-      processes: [
-        { pid: 101, name: 'python.exe', cmdline: 'serve --host 10.0.0.1', kind: 'other', safeToStop: false }
-      ]
+      processes: [{ pid: 101, name: 'python.exe', cmdline: 'serve --host 10.0.0.1', kind: 'other', safeToStop: false }]
     })
 
     assert.ok(msg.includes('PID 101'))
@@ -340,13 +338,7 @@ describe('stopSafeVenvBlockers', () => {
     assert.deepEqual(calls, [
       {
         command: 'C:\\Hermes\\venv\\Scripts\\python.exe',
-        args: [
-          '-m',
-          'hermes_cli._scan_venv_blockers',
-          '--terminate-safe',
-          '47484',
-          '1722798000.25'
-        ]
+        args: ['-m', 'hermes_cli._scan_venv_blockers', '--terminate-safe', '47484', '1722798000.25']
       }
     ])
     assert.deepEqual(outcome, { stopped: [47484], failed: [] })
diff --git a/apps/desktop/electron/venv-blocker-scan.ts b/apps/desktop/electron/venv-blocker-scan.ts
index aaea9bec73..0b687d3531 100644
--- a/apps/desktop/electron/venv-blocker-scan.ts
+++ b/apps/desktop/electron/venv-blocker-scan.ts
@@ -127,13 +127,7 @@ export async function stopSafeVenvBlockers(
     try {
       await execFn(
         pythonPath,
-        [
-          '-m',
-          'hermes_cli._scan_venv_blockers',
-          '--terminate-safe',
-          String(process.pid),
-          String(process.createTime)
-        ],
+        ['-m', 'hermes_cli._scan_venv_blockers', '--terminate-safe', String(process.pid), String(process.createTime)],
         { cwd: updateRoot, windowsHide: true, timeout: 10_000, maxBuffer: 256 * 1024 }
       )
       stopped.push(process.pid)
diff --git a/apps/desktop/src/app/chat/index.tsx b/apps/desktop/src/app/chat/index.tsx
index 1a8f60f74d..13ed225186 100644
--- a/apps/desktop/src/app/chat/index.tsx
+++ b/apps/desktop/src/app/chat/index.tsx
@@ -67,7 +67,11 @@ import { ScrollToBottomButton } from './scroll-to-bottom-button'
 import { useSessionView } from './session-view'
 import { SessionActionsMenu } from './sidebar/session-actions-menu'
 import { threadLoadingState } from './thread-loading'
-import { backfillOlderTranscriptPage, mergeOlderTranscriptPage, transcriptBackfillAvailable } from './transcript-backfill'
+import {
+  backfillOlderTranscriptPage,
+  mergeOlderTranscriptPage,
+  transcriptBackfillAvailable
+} from './transcript-backfill'
 import { advanceTranscriptWindow, type TranscriptWindowState } from './transcript-window'
 
 interface ChatViewProps extends Omit<React.ComponentProps<'div'>, 'onSubmit'> {
diff --git a/apps/desktop/src/app/chat/transcript-backfill.test.ts b/apps/desktop/src/app/chat/transcript-backfill.test.ts
index 2864c27192..fd393d06d3 100644
--- a/apps/desktop/src/app/chat/transcript-backfill.test.ts
+++ b/apps/desktop/src/app/chat/transcript-backfill.test.ts
@@ -1,11 +1,7 @@
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
 
 import type { ChatMessage } from '@/lib/chat-messages'
-import {
-  $transcriptTailBySessionId,
-  recordTranscriptTail,
-  transcriptTailState
-} from '@/store/transcript-tail'
+import { $transcriptTailBySessionId, recordTranscriptTail, transcriptTailState } from '@/store/transcript-tail'
 
 import {
   _resetTranscriptBackfillForTests,
@@ -238,8 +234,16 @@ describe('backfillOlderTranscriptPage', () => {
       }) as never
     )
 
-    const first = backfillOlderTranscriptPage({ storedSessionId: 'stored-1', isCurrent: () => true, applyOlderPage: vi.fn() })
-    const second = backfillOlderTranscriptPage({ storedSessionId: 'stored-1', isCurrent: () => true, applyOlderPage: vi.fn() })
+    const first = backfillOlderTranscriptPage({
+      storedSessionId: 'stored-1',
+      isCurrent: () => true,
+      applyOlderPage: vi.fn()
+    })
+    const second = backfillOlderTranscriptPage({
+      storedSessionId: 'stored-1',
+      isCurrent: () => true,
+      applyOlderPage: vi.fn()
+    })
 
     expect(second).toBe(first)
     expect(getOlderSessionMessages).toHaveBeenCalledTimes(1)
diff --git a/apps/desktop/src/app/chat/transcript-backfill.ts b/apps/desktop/src/app/chat/transcript-backfill.ts
index 82205b61af..fb6ff3d3d2 100644
--- a/apps/desktop/src/app/chat/transcript-backfill.ts
+++ b/apps/desktop/src/app/chat/transcript-backfill.ts
@@ -75,6 +75,7 @@ export function graftRefreshedTailOntoBackfill(refreshedTail: ChatMessage[], pre
   }
 
   const first = refreshedTail[0]
+
   const anchor = previous.findIndex(
     message =>
       (first.rowId !== undefined && message.rowId !== undefined && message.rowId === first.rowId) ||
diff --git a/apps/desktop/src/app/contrib/mcp-install-deeplink-dialog.tsx b/apps/desktop/src/app/contrib/mcp-install-deeplink-dialog.tsx
index b7c3e2389d..aa4b1b3cab 100644
--- a/apps/desktop/src/app/contrib/mcp-install-deeplink-dialog.tsx
+++ b/apps/desktop/src/app/contrib/mcp-install-deeplink-dialog.tsx
@@ -154,7 +154,9 @@ export function McpInstallDeepLinkDialog() {
           </label>
 
           {!nameValid && <p className="text-xs text-destructive">{m.deepLinkNameInvalid}</p>}
-          {nameValid && nameConflict && <p className="text-xs text-destructive">{m.deepLinkNameConflict(trimmedName)}</p>}
+          {nameValid && nameConflict && (
+            <p className="text-xs text-destructive">{m.deepLinkNameConflict(trimmedName)}</p>
+          )}
 
           <div className="flex flex-col gap-1 text-xs text-muted-foreground">
             {m.serverJson}
diff --git a/apps/desktop/src/app/session/hooks/use-message-stream/utils.test.ts b/apps/desktop/src/app/session/hooks/use-message-stream/utils.test.ts
index da9a2856cc..e56561a9b0 100644
--- a/apps/desktop/src/app/session/hooks/use-message-stream/utils.test.ts
+++ b/apps/desktop/src/app/session/hooks/use-message-stream/utils.test.ts
@@ -66,7 +66,7 @@ describe('delegateTaskPayloads', () => {
 
   it.each(['timeout', 'error', 'failed', 'failure', 'TIMEOUT'])(
     'maps completion with result.status=%s to a failed subagent.complete',
-    (resultStatus) => {
+    resultStatus => {
       const [spec] = delegateTaskPayloads(
         payload({ name: 'delegate_task', result: { status: resultStatus, summary: 'timed out' } }),
         'complete'
diff --git a/apps/desktop/src/app/session/hooks/use-prompt-actions/index.test.tsx b/apps/desktop/src/app/session/hooks/use-prompt-actions/index.test.tsx
index 25afbea6da..246d486648 100644
--- a/apps/desktop/src/app/session/hooks/use-prompt-actions/index.test.tsx
+++ b/apps/desktop/src/app/session/hooks/use-prompt-actions/index.test.tsx
@@ -5184,6 +5184,7 @@ describe('usePromptActions editMessage stale-target recovery (#82462)', () => {
 
   it('surfaces a compressed-away notice instead of plain-resubmitting without an ordinal', async () => {
     let handle: HarnessHandle | undefined
+
     const requestGateway = vi.fn(async (method: string) => {
       if (method === 'prompt.submit') {
         throw new JsonRpcGatewayError('target user message is no longer in session history', {
@@ -5204,6 +5205,7 @@ describe('usePromptActions editMessage stale-target recovery (#82462)', () => {
       { id: 'u1', parts: [textPart('pre-compress')], role: 'user' as const, timestamp: 0 },
       { id: 'a1', parts: [textPart('reply')], role: 'assistant' as const, timestamp: 1 }
     ]
+
     setMessages(seed)
 
     await actRender(
@@ -5233,6 +5235,7 @@ describe('usePromptActions editMessage stale-target recovery (#82462)', () => {
     const submitCalls = (requestGateway as unknown as { mock: { calls: unknown[][] } }).mock.calls.filter(
       ([method]) => method === 'prompt.submit'
     )
+
     // First attempt only — no plain resubmit that drops truncate_before_user_ordinal.
     expect(submitCalls).toHaveLength(1)
     expect(submitCalls[0]?.[1]).toMatchObject({
diff --git a/apps/desktop/src/app/session/hooks/use-prompt-actions/index.ts b/apps/desktop/src/app/session/hooks/use-prompt-actions/index.ts
index c9695dfa69..e41d1a9f01 100644
--- a/apps/desktop/src/app/session/hooks/use-prompt-actions/index.ts
+++ b/apps/desktop/src/app/session/hooks/use-prompt-actions/index.ts
@@ -1013,11 +1013,13 @@ export function usePromptActions({
         }
 
         const data = err.data
+
         if (!data || typeof data !== 'object') {
           return false
         }
 
         const segmentOrdinal = (data as { segment_ordinal?: unknown }).segment_ordinal
+
         return typeof segmentOrdinal === 'number' && segmentOrdinal < 0
       }
 
@@ -1046,12 +1048,14 @@ export function usePromptActions({
         if (!plan.isFailedTurn && !unavailable && isStaleTargetError(err)) {
           try {
             const storedId = selectedStoredSessionIdRef.current
+
             if (storedId) {
               await resumeStoredSession(storedId)
             }
 
             const refreshed = $messages.get()
             const retryPlan = planEdit(refreshed, edited)
+
             if (retryPlan && !retryPlan.isFailedTurn) {
               const survivorRowIds = await submitRewindPrompt(
                 sessionId,
@@ -1064,6 +1068,7 @@ export function usePromptActions({
               )
 
               applySurvivorRowIds(sessionId, survivorRowIds)
+
               return
             }
 
diff --git a/apps/desktop/src/app/session/hooks/use-session-actions/index.ts b/apps/desktop/src/app/session/hooks/use-session-actions/index.ts
index ccdadffcad..eb3c94ba4a 100644
--- a/apps/desktop/src/app/session/hooks/use-session-actions/index.ts
+++ b/apps/desktop/src/app/session/hooks/use-session-actions/index.ts
@@ -897,6 +897,7 @@ export function useSessionActions({
                     toChatMessages(persisted.messages),
                     cachedViewState.messages
                   )
+
                   const runtimeMessages = toChatMessages(activated.messages)
                   const previousMessages = removeRepresentedLocalLiveProjection(cachedViewState.messages, activated)
 
diff --git a/apps/desktop/src/i18n/ar.ts b/apps/desktop/src/i18n/ar.ts
index 8bcc30d032..e9c8575b8d 100644
--- a/apps/desktop/src/i18n/ar.ts
+++ b/apps/desktop/src/i18n/ar.ts
@@ -763,8 +763,10 @@ export const ar = defineLocale({
       remove: 'إزالة',
       saveServer: 'حفظ الخادم',
       deepLinkTitle: 'إضافة خادم MCP؟',
-      deepLinkDescription: 'طلب رابط إضافة خادم MCP هذا إلى Hermes. راجع الإعدادات الكاملة أدناه — فهي قادمة من الرابط وليست من Hermes.',
-      deepLinkStdioWarning: 'سيشغّل هذا الخادم عملية محلية على جهازك بالأمر الموضح أدناه. لا تتابع إلا إذا كنت تثق بمصدره.',
+      deepLinkDescription:
+        'طلب رابط إضافة خادم MCP هذا إلى Hermes. راجع الإعدادات الكاملة أدناه — فهي قادمة من الرابط وليست من Hermes.',
+      deepLinkStdioWarning:
+        'سيشغّل هذا الخادم عملية محلية على جهازك بالأمر الموضح أدناه. لا تتابع إلا إذا كنت تثق بمصدره.',
       deepLinkConfirm: 'إضافة الخادم',
       deepLinkNameInvalid: 'الأسماء من 1-64 حرفا أو رقما أو نقطة أو شرطة أو شرطة سفلية.',
       deepLinkNameConflict: name => `يوجد خادم باسم ${name} بالفعل — اختر اسما مختلفا أو ألغِ العملية.`,
diff --git a/apps/desktop/src/i18n/ja.ts b/apps/desktop/src/i18n/ja.ts
index 639f2c78bd..cff785fb9a 100644
--- a/apps/desktop/src/i18n/ja.ts
+++ b/apps/desktop/src/i18n/ja.ts
@@ -887,11 +887,13 @@ export const ja = defineLocale({
         'このサーバーは下記のコマンドでローカルプロセスを実行します。提供元を信頼できる場合のみ続行してください。',
       deepLinkConfirm: 'サーバーを追加',
       deepLinkNameInvalid: '名前は 1〜64 文字の英数字、ドット、ハイフン、アンダースコアです。',
-      deepLinkNameConflict: name => `${name} という名前のサーバーは既に存在します。別の名前にするかキャンセルしてください。`,
+      deepLinkNameConflict: name =>
+        `${name} という名前のサーバーは既に存在します。別の名前にするかキャンセルしてください。`,
       deepLinkErrorTitle: 'MCP インストールリンクを拒否しました',
       deepLinkErrorName: 'リンクのサーバー名が欠落しているか無効です。',
       deepLinkErrorConfig: 'リンクの設定が有効な base64 エンコード JSON ではありません。',
-      deepLinkErrorShape: '設定は文字列の `url` または `command` フィールドを持つ JSON オブジェクトである必要があります。',
+      deepLinkErrorShape:
+        '設定は文字列の `url` または `command` フィールドを持つ JSON オブジェクトである必要があります。',
       deepLinkErrorUrl: 'サーバー URL は http:// と https:// のみ許可されます。',
       deepLinkErrorTooLarge: '設定ペイロードが 32KB の上限を超えています。'
     },
diff --git a/apps/desktop/src/i18n/zh.ts b/apps/desktop/src/i18n/zh.ts
index 04ef547fcf..b9df61a6cc 100644
--- a/apps/desktop/src/i18n/zh.ts
+++ b/apps/desktop/src/i18n/zh.ts
@@ -1101,7 +1101,8 @@ export const zh: Translations = {
       disableTool: tool => `禁用 ${tool}`,
       noOutput: '暂无输出。',
       deepLinkTitle: '添加 MCP 服务器？',
-      deepLinkDescription: '一个链接请求将此 MCP 服务器添加到 Hermes。请检查下方的完整配置——它来自该链接，而非 Hermes。',
+      deepLinkDescription:
+        '一个链接请求将此 MCP 服务器添加到 Hermes。请检查下方的完整配置——它来自该链接，而非 Hermes。',
       deepLinkStdioWarning: '此服务器会使用下方所示命令在你的电脑上运行本地进程。仅在信任其来源时继续。',
       deepLinkConfirm: '添加服务器',
       deepLinkNameInvalid: '名称须为 1-64 个字母、数字、点、连字符或下划线。',
diff --git a/apps/desktop/src/lib/json-rpc-gateway-url-guard.test.ts b/apps/desktop/src/lib/json-rpc-gateway-url-guard.test.ts
index 563a1a148b..ca978ed3d1 100644
--- a/apps/desktop/src/lib/json-rpc-gateway-url-guard.test.ts
+++ b/apps/desktop/src/lib/json-rpc-gateway-url-guard.test.ts
@@ -104,11 +104,13 @@ describe('JsonRpcGatewayClient structured errors', () => {
     }
 
     vi.stubGlobal('WebSocket', RespondingSocket)
+
     try {
       const client = new JsonRpcGatewayClient({
         requestTimeoutMs: 5_000,
         socketFactory: () => new RespondingSocket() as unknown as WebSocket
       })
+
       await client.connect('ws://127.0.0.1:1234/api/ws?token=t')
 
       await expect(client.request('prompt.submit', { session_id: 's' })).rejects.toEqual(
diff --git a/apps/desktop/src/lib/mcp-deeplink.ts b/apps/desktop/src/lib/mcp-deeplink.ts
index 21e13a8545..a78e1cbd22 100644
--- a/apps/desktop/src/lib/mcp-deeplink.ts
+++ b/apps/desktop/src/lib/mcp-deeplink.ts
@@ -36,8 +36,7 @@ export interface McpInstallRequest {
 }
 
 export type McpDeepLinkParseResult =
-  | { ok: false; error: McpDeepLinkErrorCode }
-  | { ok: true; request: McpInstallRequest }
+  { ok: false; error: McpDeepLinkErrorCode } | { ok: true; request: McpInstallRequest }
 
 /** i18n key (under `settings.mcp`) for each rejection, used by the toast. */
 export const MCP_DEEPLINK_ERROR_KEYS: Record<McpDeepLinkErrorCode, string> = {