diff --git a/docs/plans/state.json b/docs/plans/state.json
index 1c8b6bb..62526ec 100644
--- a/docs/plans/state.json
+++ b/docs/plans/state.json
@@ -1055,6 +1055,17 @@
       ],
       "test_status": "pnpm test:run src/companion/runtimeClient.test.ts src/companion/platformClients.test.ts src/companion/heartbeatLoop.test.ts src/companion/platformClients.integration.test.ts + pnpm typecheck passing"
     },
+    "companion-platform-cancel-pending-waits-integration-coverage": {
+      "status": "completed",
+      "date": "2026-02-17",
+      "updated": "2026-02-17",
+      "summary": "Added platform integration coverage for `cancelPendingEventWaits()` to verify pending wait cancellation with custom reasons while preserving existing event subscriptions.",
+      "files_modified": [
+        "src/companion/platformClients.integration.test.ts",
+        "docs/plans/state.json"
+      ],
+      "test_status": "pnpm test:run src/companion/platformClients.integration.test.ts src/companion/platformClients.test.ts src/companion/runtimeClient.test.ts src/companion/heartbeatLoop.test.ts + pnpm typecheck passing"
+    },
     "browser-tools-activation-clarity": {
       "status": "completed",
       "date": "2026-02-17",
diff --git a/src/companion/platformClients.integration.test.ts b/src/companion/platformClients.integration.test.ts
index ccf98bc..6769ef5 100644
--- a/src/companion/platformClients.integration.test.ts
+++ b/src/companion/platformClients.integration.test.ts
@@ -201,6 +201,31 @@ describe('platform clients integration', () => {
     });
   });
 
+  it('platform cancelPendingEventWaits cancels waits without clearing subscriptions', async () => {
+    if (!LISTEN_ALLOWED) {
+      return;
+    }
+
+    const runtime = createRuntime();
+    const client = new IOSCompanionClient({ runtime, nodeId: 'ios-cancel-waits-e2e' });
+
+    const unsubscribe = client.subscribeEvents(() => undefined);
+    expect(client.eventSubscriptionCount).toBe(1);
+
+    const awaited = expect(
+      client.waitForAnyEvent(['agent.stream'], { timeoutMs: 10_000 }),
+    ).rejects.toThrow('manual cancel');
+    expect(client.pendingEventWaitCount).toBe(1);
+
+    client.cancelPendingEventWaits('manual cancel');
+    await awaited;
+    expect(client.pendingEventWaitCount).toBe(0);
+    expect(client.eventSubscriptionCount).toBe(1);
+
+    unsubscribe();
+    expect(client.eventSubscriptionCount).toBe(0);
+  });
+
   it('platform connected reflects runtime connection lifecycle', async () => {
     if (!LISTEN_ALLOWED) {
       return;