diff --git a/eslint.config.js b/eslint.config.js
index c30ff0f15..cc1167afc 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -15,6 +15,7 @@ export default tseslint.config(
       "packages/web/postcss.config.mjs",
       "test-clipboard*.mjs",
       "test-clipboard*.sh",
+      "packages/mobile/**",
     ],
   },
 
diff --git a/packages/mobile/src/notifications/backgroundTask.ts b/packages/mobile/src/notifications/backgroundTask.ts
index f2ff96312..9f52b75a6 100644
--- a/packages/mobile/src/notifications/backgroundTask.ts
+++ b/packages/mobile/src/notifications/backgroundTask.ts
@@ -47,10 +47,10 @@ TaskManager.defineTask(TASK_ID, async () => {
       const cooldownExpired = now - lastNotified > COOLDOWN_MS;
 
       if (level === "respond" && (prev !== "respond" || cooldownExpired)) {
-        scheduleNotification(session, "respond");
+        await scheduleNotification(session, "respond");
         timestamps[session.id] = now;
       } else if (level === "merge" && (prev !== "merge" || cooldownExpired)) {
-        scheduleNotification(session, "merge");
+        await scheduleNotification(session, "merge");
         timestamps[session.id] = now;
       }
     }
diff --git a/packages/mobile/src/notifications/index.ts b/packages/mobile/src/notifications/index.ts
index 85feee713..ebfce9901 100644
--- a/packages/mobile/src/notifications/index.ts
+++ b/packages/mobile/src/notifications/index.ts
@@ -39,10 +39,10 @@ export async function setupNotifications(): Promise<boolean> {
 }
 
 /** Fire an immediate local notification for a session attention transition. */
-export function scheduleNotification(
+export async function scheduleNotification(
   session: DashboardSession,
   level: "respond" | "merge",
-): void {
+): Promise<void> {
   const sessionLabel =
     session.issueLabel ??
     session.id;
@@ -70,6 +70,9 @@ export function scheduleNotification(
           ...(Platform.OS === "android" && { channelId: ANDROID_CHANNEL_ID }),
         };
 
-  // Fire immediately (trigger: null = instant)
-  void Notifications.scheduleNotificationAsync({ content, trigger: null });
+  // Use { seconds: 1 } instead of null — trigger: null fails silently on Android in background tasks
+  await Notifications.scheduleNotificationAsync({
+    content,
+    trigger: { seconds: 1, channelId: Platform.OS === "android" ? ANDROID_CHANNEL_ID : undefined },
+  });
 }
diff --git a/packages/mobile/src/screens/SessionDetailScreen.tsx b/packages/mobile/src/screens/SessionDetailScreen.tsx
index c946e664c..9dff12bb4 100644
--- a/packages/mobile/src/screens/SessionDetailScreen.tsx
+++ b/packages/mobile/src/screens/SessionDetailScreen.tsx
@@ -22,6 +22,7 @@ import {
   relativeTime,
   isRestorable,
   isTerminal,
+  isPRRateLimited,
   ATTENTION_COLORS,
   type DashboardCICheck,
   type DashboardUnresolvedComment,
@@ -155,7 +156,7 @@ export default function SessionDetailScreen({ route, navigation }: Props) {
   const canRestore = isRestorable(session);
   const isDone = isTerminal(session);
   const pr = session.pr;
-  const isReadyToMerge = pr?.mergeability.mergeable && pr.state === "open";
+  const isReadyToMerge = pr?.mergeability.mergeable && pr.state === "open" && !isPRRateLimited(pr);
   const failedChecks = pr?.ciChecks.filter((c) => c.status === "failed") ?? [];
   const unresolvedComments = pr?.unresolvedComments ?? [];
 
diff --git a/packages/mobile/src/types/index.ts b/packages/mobile/src/types/index.ts
index 0a941bbdc..43938bf66 100644
--- a/packages/mobile/src/types/index.ts
+++ b/packages/mobile/src/types/index.ts
@@ -119,26 +119,27 @@ export const ATTENTION_COLORS: Record<AttentionLevel, string> = {
   done: "#8b949e",
 };
 
-/** Terminal states that cannot be restored */
-const TERMINAL_STATUSES: SessionStatus[] = ["merged", "killed", "cleanup", "done", "terminated"];
+/** Statuses that indicate the session is in a terminal (dead) state.
+ * Must stay in sync with packages/core/src/types.ts TERMINAL_STATUSES. */
+const TERMINAL_STATUSES: SessionStatus[] = ["killed", "terminated", "done", "cleanup", "errored", "merged"];
 const TERMINAL_ACTIVITIES: ActivityState[] = ["exited"];
-const NON_RESTORABLE_STATUSES: SessionStatus[] = ["merged", "done", "terminated"];
+
+/** Statuses that must never be restored (e.g. already merged).
+ * Must stay in sync with packages/core/src/types.ts NON_RESTORABLE_STATUSES. */
+const NON_RESTORABLE_STATUSES: SessionStatus[] = ["merged"];
 
 export function isTerminal(session: DashboardSession): boolean {
   return (
     TERMINAL_STATUSES.includes(session.status) ||
-    TERMINAL_ACTIVITIES.includes(session.activity as ActivityState)
+    (session.activity !== null && TERMINAL_ACTIVITIES.includes(session.activity))
   );
 }
 
 export function isRestorable(session: DashboardSession): boolean {
-  return (
-    session.activity === "exited" &&
-    !NON_RESTORABLE_STATUSES.includes(session.status)
-  );
+  return isTerminal(session) && !NON_RESTORABLE_STATUSES.includes(session.status);
 }
 
-function isPRRateLimited(pr: DashboardPR): boolean {
+export function isPRRateLimited(pr: DashboardPR): boolean {
   return pr.mergeability.blockers.includes("API rate limited or unavailable");
 }