diff --git a/Auto Run Docs/Initiation/2026-03-31-WebSocket-Progress-And-Polish/WEBSOCKET-PROGRESS-01.md b/Auto Run Docs/Initiation/2026-03-31-WebSocket-Progress-And-Polish/WEBSOCKET-PROGRESS-01.md
index 4453db7..915e42c 100644
--- a/Auto Run Docs/Initiation/2026-03-31-WebSocket-Progress-And-Polish/WEBSOCKET-PROGRESS-01.md	
+++ b/Auto Run Docs/Initiation/2026-03-31-WebSocket-Progress-And-Polish/WEBSOCKET-PROGRESS-01.md	
@@ -40,8 +40,9 @@ The backend event bus, WebSocket route, progress parser, and frontend context/ho
   - Verify the `--newline` and `--progress` flags are added to yt-dlp args in `spawnDownload` (they should already be there)
   - **Verified:** All wiring is correct. Single `DownloadEventBus` instance created in `src/index.ts:61` is shared between `buildServer` (→ WebSocket route) and `DownloadService`. `spawnDownload` adds `--newline`/`--progress` flags, parses progress lines, and emits all three event types. WebSocket route subscribes and broadcasts to clients. All 13 related tests pass.
 
-- [ ] Invalidate relevant queries on WebSocket events for immediate UI freshness:
+- [x] Invalidate relevant queries on WebSocket events for immediate UI freshness:
   - Read the `DownloadProgressContext.tsx` — it already invalidates `content` and `queue` query keys on `download:complete` and `download:failed`
   - Read `src/frontend/src/api/hooks/useQueue.ts` and `src/frontend/src/api/hooks/useContent.ts` to verify they use matching query keys
   - Also invalidate `activity` and `channels` query keys on complete/failed events so the Activity page and channel content counts update without manual refresh
   - Add `library` query key invalidation on complete events if the library hook uses a separate query key
+  - **Done:** Added `activity`, `channels`, and `library` query key invalidations to both `download:complete` and `download:failed` handlers in `DownloadProgressContext.tsx`. Verified query keys match: `useActivity` uses `['activity']`, `useChannels` uses `['channels']`, `useLibraryContent` uses `['library']`. Frontend builds clean, all 40 backend tests pass.
diff --git a/src/frontend/src/contexts/DownloadProgressContext.tsx b/src/frontend/src/contexts/DownloadProgressContext.tsx
index 5683b66..a6960a1 100644
--- a/src/frontend/src/contexts/DownloadProgressContext.tsx
+++ b/src/frontend/src/contexts/DownloadProgressContext.tsx
@@ -100,9 +100,12 @@ export function DownloadProgressProvider({ children }: { children: ReactNode })
 
         case 'download:complete':
           store.delete(event.contentItemId);
-          // Invalidate content queries so the UI refreshes with updated status
+          // Invalidate queries so the UI refreshes with updated status
           queryClient.invalidateQueries({ queryKey: ['content'] });
           queryClient.invalidateQueries({ queryKey: ['queue'] });
+          queryClient.invalidateQueries({ queryKey: ['activity'] });
+          queryClient.invalidateQueries({ queryKey: ['channels'] });
+          queryClient.invalidateQueries({ queryKey: ['library'] });
           break;
 
         case 'download:failed':
@@ -110,6 +113,9 @@ export function DownloadProgressProvider({ children }: { children: ReactNode })
           // Invalidate to show updated status (failed)
           queryClient.invalidateQueries({ queryKey: ['content'] });
           queryClient.invalidateQueries({ queryKey: ['queue'] });
+          queryClient.invalidateQueries({ queryKey: ['activity'] });
+          queryClient.invalidateQueries({ queryKey: ['channels'] });
+          queryClient.invalidateQueries({ queryKey: ['library'] });
           break;
       }
     },