diff --git a/packages/core/src/scheduler/confirmation.test.ts b/packages/core/src/scheduler/confirmation.test.ts
index abd07ba86e..d286ede8df 100644
--- a/packages/core/src/scheduler/confirmation.test.ts
+++ b/packages/core/src/scheduler/confirmation.test.ts
@@ -357,6 +357,45 @@ describe('confirmation.ts', () => {
       expect(mockState.updateArgs).toHaveBeenCalled();
     });
 
+    it('should pass payload to onConfirm callback', async () => {
+      const details = {
+        type: 'ask_user' as const,
+        questions: [],
+        title: 'Title',
+        onConfirm: vi.fn(),
+      };
+      invocationMock.shouldConfirmExecute.mockResolvedValue(details);
+
+      const listenerPromise = waitForListener(
+        MessageBusType.TOOL_CONFIRMATION_RESPONSE,
+      );
+      const promise = resolveConfirmation(toolCall, signal, {
+        config: mockConfig,
+        messageBus: mockMessageBus,
+        state: mockState,
+        modifier: mockModifier,
+        getPreferredEditor,
+        schedulerId: ROOT_SCHEDULER_ID,
+      });
+
+      await listenerPromise;
+
+      const payload = { answers: { '0': 'user choice' } };
+      emitResponse({
+        type: MessageBusType.TOOL_CONFIRMATION_RESPONSE,
+        correlationId: '123e4567-e89b-12d3-a456-426614174000',
+        confirmed: true,
+        outcome: ToolConfirmationOutcome.ProceedOnce,
+        payload,
+      });
+
+      await promise;
+      expect(details.onConfirm).toHaveBeenCalledWith(
+        ToolConfirmationOutcome.ProceedOnce,
+        payload,
+      );
+    });
+
     it('should resolve immediately if IDE confirmation resolves first', async () => {
       const idePromise = Promise.resolve({
         status: 'accepted' as const,