diff --git a/packages/workflows/src/dag-executor.test.ts b/packages/workflows/src/dag-executor.test.ts
index b4717e9565..a0fcb99e29 100644
--- a/packages/workflows/src/dag-executor.test.ts
+++ b/packages/workflows/src/dag-executor.test.ts
@@ -6079,3 +6079,161 @@ describe('shouldContinueStreamingForStatus', () => {
     expect(shouldContinueStreamingForStatus('invalid-status')).toBe(false);
   });
 });
+
+describe('executeDagWorkflow -- final status derivation', () => {
+  // Invariant: if ANY non-skipped node has failed status, the run must be
+  // marked 'failed' — never 'completed' — regardless of how many other nodes
+  // succeeded. This covers the anyFailed branch in executeDagWorkflow
+  // (dag-executor.ts ~line 2956), which had no direct test coverage.
+  let testDir: string;
+
+  beforeEach(async () => {
+    testDir = join(
+      tmpdir(),
+      `dag-status-test-${Date.now()}-${Math.random().toString(36).slice(2)}`
+    );
+    await mkdir(testDir, { recursive: true });
+
+    mockSendQueryDag.mockClear();
+    mockGetAgentProviderDag.mockClear();
+    mockSendQueryDag.mockImplementation(function* () {
+      yield { type: 'assistant', content: 'DAG AI response' };
+      yield { type: 'result', sessionId: 'dag-session-id' };
+    });
+    mockGetAgentProviderDag.mockImplementation(() => ({
+      sendQuery: mockSendQueryDag,
+      getType: () => 'claude',
+      getCapabilities: mockClaudeCapabilities,
+    }));
+  });
+
+  afterEach(async () => {
+    try {
+      await rm(testDir, { recursive: true, force: true });
+    } catch {
+      // ignore cleanup errors
+    }
+  });
+
+  it('one success + one independent failure -> failWorkflowRun, not completeWorkflowRun', async () => {
+    const mockStore = createMockStore();
+    const mockDeps = createMockDeps(mockStore);
+    const platform = createMockPlatform();
+    const workflowRun = makeWorkflowRun('dag-status-run-1');
+
+    const nodes: DagNode[] = [
+      { id: 'pass', bash: 'echo ok' } as BashNode,
+      { id: 'fail', bash: 'exit 1' } as BashNode,
+    ];
+
+    await executeDagWorkflow(
+      mockDeps,
+      platform,
+      'conv-status',
+      testDir,
+      { name: 'status-test', nodes },
+      workflowRun,
+      'claude',
+      undefined,
+      join(testDir, 'artifacts'),
+      join(testDir, 'logs'),
+      'main',
+      'docs/',
+      minimalConfig
+    );
+
+    expect((mockStore.failWorkflowRun as ReturnType<typeof mock>).mock.calls.length).toBe(1);
+    expect((mockStore.completeWorkflowRun as ReturnType<typeof mock>).mock.calls.length).toBe(0);
+    expect(mockStore.failWorkflowRun).toHaveBeenCalledWith(
+      expect.anything(),
+      expect.stringContaining('fail')
+    );
+
+    // Confirm the failure message names the failing node
+    const sendMessage = platform.sendMessage as ReturnType<typeof mock>;
+    const messages = sendMessage.mock.calls.map((call: unknown[]) => call[1] as string);
+    const failMsg = messages.find((m: string) => m.includes('completed with failures'));
+    expect(failMsg).toBeDefined();
+  });
+
+  it('multiple successes + one failure -> failWorkflowRun, not completeWorkflowRun', async () => {
+    const mockStore = createMockStore();
+    const mockDeps = createMockDeps(mockStore);
+    const platform = createMockPlatform();
+    const workflowRun = makeWorkflowRun('dag-status-run-2');
+
+    const nodes: DagNode[] = [
+      { id: 'a', bash: 'echo a' } as BashNode,
+      { id: 'b', bash: 'echo b' } as BashNode,
+      { id: 'c', bash: 'echo c' } as BashNode,
+      { id: 'fail', bash: 'exit 1' } as BashNode,
+    ];
+
+    await executeDagWorkflow(
+      mockDeps,
+      platform,
+      'conv-status',
+      testDir,
+      { name: 'status-test-multi', nodes },
+      workflowRun,
+      'claude',
+      undefined,
+      join(testDir, 'artifacts'),
+      join(testDir, 'logs'),
+      'main',
+      'docs/',
+      minimalConfig
+    );
+
+    expect((mockStore.failWorkflowRun as ReturnType<typeof mock>).mock.calls.length).toBe(1);
+    expect((mockStore.completeWorkflowRun as ReturnType<typeof mock>).mock.calls.length).toBe(0);
+    expect(mockStore.failWorkflowRun).toHaveBeenCalledWith(
+      expect.anything(),
+      expect.stringContaining('fail')
+    );
+
+    const sendMessage = platform.sendMessage as ReturnType<typeof mock>;
+    const messages = sendMessage.mock.calls.map((call: unknown[]) => call[1] as string);
+    const failMsg = messages.find((m: string) => m.includes('completed with failures'));
+    expect(failMsg).toBeDefined();
+  });
+
+  it('trigger_rule: none_failed skips dependent node + anyFailed still marks run failed', async () => {
+    const mockStore = createMockStore();
+    const mockDeps = createMockDeps(mockStore);
+    const platform = createMockPlatform();
+    const workflowRun = makeWorkflowRun('dag-status-run-3');
+
+    // Layer 1: A and B run in parallel. B fails.
+    // Layer 2: C depends on B with trigger_rule: none_failed — so C is skipped.
+    // Expected: anyFailed=true (from B), so run must be marked failed even though C is only skipped.
+    const nodes: DagNode[] = [
+      { id: 'a', bash: 'echo a' } as BashNode,
+      { id: 'b', bash: 'exit 1' } as BashNode,
+      { id: 'c', bash: 'echo c', depends_on: ['b'], trigger_rule: 'none_failed' } as BashNode,
+    ];
+
+    await executeDagWorkflow(
+      mockDeps,
+      platform,
+      'conv-status',
+      testDir,
+      { name: 'status-test-skip', nodes },
+      workflowRun,
+      'claude',
+      undefined,
+      join(testDir, 'artifacts'),
+      join(testDir, 'logs'),
+      'main',
+      'docs/',
+      minimalConfig
+    );
+
+    expect((mockStore.failWorkflowRun as ReturnType<typeof mock>).mock.calls.length).toBe(1);
+    expect((mockStore.completeWorkflowRun as ReturnType<typeof mock>).mock.calls.length).toBe(0);
+    expect(mockStore.failWorkflowRun).toHaveBeenCalledWith(
+      expect.anything(),
+      expect.stringContaining('b')
+    );
+  });
+});