diff --git a/src/hooks/session-notification.ts b/src/hooks/session-notification.ts
index eded5181e8..3abebbba19 100644
--- a/src/hooks/session-notification.ts
+++ b/src/hooks/session-notification.ts
@@ -29,6 +29,8 @@ interface SessionNotificationConfig {
   skipIfIncompleteTodos?: boolean
   /** Maximum number of sessions to track before cleanup (default: 100) */
   maxTrackedSessions?: number
+  /** Callback to check if there are pending background tasks (default: undefined - no check) */
+  hasPendingBackgroundTasks?: () => boolean
 }
 
 type Platform = "darwin" | "linux" | "win32" | "unsupported"
@@ -156,6 +158,7 @@ export function createSessionNotification(
     idleConfirmationDelay: 1500,
     skipIfIncompleteTodos: true,
     maxTrackedSessions: 100,
+    hasPendingBackgroundTasks: undefined as (() => boolean) | undefined,
     ...config,
   }
 
@@ -227,6 +230,10 @@ export function createSessionNotification(
 
     executingNotifications.add(sessionID)
     try {
+      if (mergedConfig.hasPendingBackgroundTasks?.()) {
+        return
+      }
+
       if (mergedConfig.skipIfIncompleteTodos) {
         const hasPendingWork = await hasIncompleteTodos(ctx, sessionID)
         if (notificationVersions.get(sessionID) !== version) {
diff --git a/src/index.ts b/src/index.ts
index 240844d968..5349165910 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -111,6 +111,8 @@ const OhMyOpenCodePlugin: Plugin = async (ctx) => {
     : null;
   
   // Check for conflicting notification plugins before creating session-notification
+  // backgroundManagerRef is set later after BackgroundManager is created
+  let backgroundManagerRef: BackgroundManager | null = null;
   let sessionNotification = null;
   if (isHookEnabled("session-notification")) {
     const forceEnable = pluginConfig.notification?.force_enable ?? false;
@@ -124,7 +126,12 @@ const OhMyOpenCodePlugin: Plugin = async (ctx) => {
         allPlugins: externalNotifier.allPlugins,
       });
     } else {
-      sessionNotification = createSessionNotification(ctx);
+      sessionNotification = createSessionNotification(ctx, {
+        hasPendingBackgroundTasks: () => {
+          if (!backgroundManagerRef) return false;
+          return backgroundManagerRef.getRunningTasks().length > 0;
+        },
+      });
     }
   }
 
@@ -271,6 +278,8 @@ const OhMyOpenCodePlugin: Plugin = async (ctx) => {
     },
   });
 
+  backgroundManagerRef = backgroundManager;
+
   const atlasHook = isHookEnabled("atlas")
     ? createAtlasHook(ctx, { directory: ctx.directory, backgroundManager })
     : null;