diff --git a/apps/mobile-shell/scripts/check-config.mjs b/apps/mobile-shell/scripts/check-config.mjs
index 51fe75f9c..524a28eed 100644
--- a/apps/mobile-shell/scripts/check-config.mjs
+++ b/apps/mobile-shell/scripts/check-config.mjs
@@ -104,6 +104,11 @@ const hostBridgeNetworkTestSource = fs.readFileSync(
 );
 const notificationsPath = new URL('../src/host-bridge/notifications.ts', import.meta.url);
 const notificationsSource = fs.readFileSync(notificationsPath, 'utf8');
+const notificationsTestPath = new URL(
+  '../src/host-bridge/notifications.test.ts',
+  import.meta.url,
+);
+const notificationsTestSource = fs.readFileSync(notificationsTestPath, 'utf8');
 const protocolPath = new URL('../src/host-bridge/protocol.ts', import.meta.url);
 const protocolSource = fs.readFileSync(protocolPath, 'utf8');
 const protocolTestPath = new URL(
@@ -1936,6 +1941,7 @@ for (const notificationSnippet of [
   'request: HostBridgeRequest',
   'normalizeHostBridgeLocalNotification(request.payload)',
   "invalidRequest('title is required')",
+  "message: 'notification permission unavailable'",
   'showMobileLocalNotification(notification)',
   'ok(request, await showMobileLocalNotification(notification))',
   'HOST_BRIDGE_LOCAL_NOTIFICATION_DELIVERED_TO_SYSTEM_RESULT',
@@ -1945,6 +1951,18 @@ for (const notificationSnippet of [
   }
 }
 
+for (const snippet of [
+  'rejects delivery when current permission lookup is unavailable',
+  'rejects delivery when permission request is unavailable',
+  "message: 'notification permission unavailable'",
+  'expect(Notifications.setNotificationChannelAsync).not.toHaveBeenCalled()',
+  'expect(Notifications.scheduleNotificationAsync).not.toHaveBeenCalled()',
+]) {
+  if (!notificationsTestSource.includes(snippet)) {
+    throw new Error(`mobile shell notification tests missing ${snippet}`);
+  }
+}
+
 for (const snippet of [
   'file.exportText',
   'file.importText',
diff --git a/apps/mobile-shell/src/host-bridge/notifications.test.ts b/apps/mobile-shell/src/host-bridge/notifications.test.ts
index ee94c8455..7c59dca6f 100644
--- a/apps/mobile-shell/src/host-bridge/notifications.test.ts
+++ b/apps/mobile-shell/src/host-bridge/notifications.test.ts
@@ -152,6 +152,42 @@ describe('mobile local notification helpers', () => {
     expect(Notifications.scheduleNotificationAsync).not.toHaveBeenCalled();
   });
 
+  test('rejects delivery when current permission lookup is unavailable', async () => {
+    vi.mocked(Notifications.getPermissionsAsync).mockRejectedValueOnce(
+      new Error('native permission failed'),
+    );
+
+    await expect(
+      showMobileLocalNotification({ title: '生成完成' }),
+    ).rejects.toMatchObject({
+      code: 'host_error',
+      message: 'notification permission unavailable',
+    });
+
+    expect(Notifications.requestPermissionsAsync).not.toHaveBeenCalled();
+    expect(Notifications.setNotificationChannelAsync).not.toHaveBeenCalled();
+    expect(Notifications.scheduleNotificationAsync).not.toHaveBeenCalled();
+  });
+
+  test('rejects delivery when permission request is unavailable', async () => {
+    vi.mocked(Notifications.getPermissionsAsync).mockResolvedValue(
+      DENIED_NOTIFICATION_PERMISSION,
+    );
+    vi.mocked(Notifications.requestPermissionsAsync).mockRejectedValueOnce(
+      new Error('native permission failed'),
+    );
+
+    await expect(
+      showMobileLocalNotification({ title: '生成完成' }),
+    ).rejects.toMatchObject({
+      code: 'host_error',
+      message: 'notification permission unavailable',
+    });
+
+    expect(Notifications.setNotificationChannelAsync).not.toHaveBeenCalled();
+    expect(Notifications.scheduleNotificationAsync).not.toHaveBeenCalled();
+  });
+
   test('schedules iOS notification without channel trigger', async () => {
     await showMobileLocalNotification({
       title: '生成完成',
diff --git a/apps/mobile-shell/src/host-bridge/notifications.ts b/apps/mobile-shell/src/host-bridge/notifications.ts
index 7c219583e..6b6ed7526 100644
--- a/apps/mobile-shell/src/host-bridge/notifications.ts
+++ b/apps/mobile-shell/src/host-bridge/notifications.ts
@@ -30,18 +30,38 @@ function hasNotificationPermission(
 }
 
 async function ensureNotificationPermission() {
-  const currentPermission = await Notifications.getPermissionsAsync();
+  let currentPermission: Awaited<
+    ReturnType<typeof Notifications.getPermissionsAsync>
+  >;
+  try {
+    currentPermission = await Notifications.getPermissionsAsync();
+  } catch {
+    throw {
+      code: 'host_error',
+      message: 'notification permission unavailable',
+    } satisfies HostBridgeError;
+  }
   if (hasNotificationPermission(currentPermission)) {
     return;
   }
 
-  const requestedPermission = await Notifications.requestPermissionsAsync({
-    ios: {
-      allowAlert: true,
-      allowBadge: false,
-      allowSound: false,
-    },
-  });
+  let requestedPermission: Awaited<
+    ReturnType<typeof Notifications.requestPermissionsAsync>
+  >;
+  try {
+    requestedPermission = await Notifications.requestPermissionsAsync({
+      ios: {
+        allowAlert: true,
+        allowBadge: false,
+        allowSound: false,
+      },
+    });
+  } catch {
+    throw {
+      code: 'host_error',
+      message: 'notification permission unavailable',
+    } satisfies HostBridgeError;
+  }
   if (!hasNotificationPermission(requestedPermission)) {
     throw {
       code: 'host_error',