diff --git a/cmd/cognitive-worker/multimodal_test.go b/cmd/cognitive-worker/multimodal_test.go
index bc0ae07..a1207fd 100644
--- a/cmd/cognitive-worker/multimodal_test.go
+++ b/cmd/cognitive-worker/multimodal_test.go
@@ -31,6 +31,32 @@ func TestMultimodalTranscriptionHandlerReturnsLocalResult(t *testing.T) {
 	}
 }
 
+func TestMultimodalImageGenerationFailsClosedWhenSkillIsUnbound(t *testing.T) {
+	server := multimodalGateway{now: time.Now}
+	body := &bytes.Buffer{}
+	writer := multipart.NewWriter(body)
+	if err := writer.WriteField("prompt", "green bird"); err != nil || writer.Close() != nil {
+		t.Fatal("failed to build generation request")
+	}
+	request := httptest.NewRequest(http.MethodPost, "/v1/multimodal/generate-image", body)
+	request.Header.Set("Content-Type", writer.FormDataContentType())
+	response := httptest.NewRecorder()
+	server.handler(capability.MultimodalGenerateImage)(response, request)
+	if response.Code != http.StatusBadGateway || !bytes.Contains(response.Body.Bytes(), []byte("unavailable")) {
+		t.Fatalf("status=%d body=%s", response.Code, response.Body.String())
+	}
+}
+
+func TestMultimodalVideoUnderstandingFailsClosedWhenSkillIsUnbound(t *testing.T) {
+	server := multimodalGateway{now: time.Now}
+	request := multipartRequest(t, "/v1/multimodal/video-understand", "clip.mp4", []byte("video"))
+	response := httptest.NewRecorder()
+	server.handler(capability.MultimodalUnderstandVideo)(response, request)
+	if response.Code != http.StatusBadGateway || !bytes.Contains(response.Body.Bytes(), []byte("unavailable")) {
+		t.Fatalf("status=%d body=%s", response.Code, response.Body.String())
+	}
+}
+
 func multipartRequest(t *testing.T, path, filename string, data []byte) *http.Request {
 	t.Helper()
 	body := &bytes.Buffer{}