fix local cognitive model metadata qualification

adapters/models/openai_compatible_local.go

@@ -25,6 +25,13 @@ type OpenAICompatibleLocalAdapter struct {
 	apiKey string
 }
 
+// compatibleDefaultContextBytes is a conservative bound used when an
+// OpenAI-compatible local endpoint omits n_ctx from /v1/models. The adapter
+// is a chat-completions adapter, so advisory capability is known from the
+// adapter contract; quality and activation still require governed
+// qualification/evaluation in the capability registry.
+const compatibleDefaultContextBytes int64 = 32 << 10
+
 func NewOpenAICompatibleLocalAdapter(raw string, transport http.RoundTripper) (*OpenAICompatibleLocalAdapter, error) {
 	return NewOpenAICompatibleLocalAdapterWithAPIKey(raw, "", transport)
 }
@@ -90,7 +97,10 @@ func (a *OpenAICompatibleLocalAdapter) Discover(ctx context.Context) ([]Discover
 		stableMetadata := fmt.Sprintf("%s\x00%s\x00%d\x00%d\x00%d\x00%d\x00%s", item.ID, item.OwnedBy, item.Meta.Context, item.Meta.TrainingContext, item.Meta.Parameters, item.Meta.Size, item.Meta.FileType)
 		digest := sha256.Sum256([]byte(stableMetadata))
 		contextBytes := item.Meta.Context * 4
-		models = append(models, DiscoveredModel{ProviderModelID: capability.ProviderModelID(item.ID), Fingerprint: capability.ModelFingerprint(hex.EncodeToString(digest[:])), MaxContextBytes: contextBytes, Modalities: []capability.ModelModality{capability.ModalityText}, Capabilities: []capability.ModelCapability{capability.CapabilityUnknown}, SizeBytes: item.Meta.Size, Runtime: item.OwnedBy, Quantization: item.Meta.FileType})
+		if contextBytes <= 0 {
+			contextBytes = compatibleDefaultContextBytes
+		}
+		models = append(models, DiscoveredModel{ProviderModelID: capability.ProviderModelID(item.ID), Fingerprint: capability.ModelFingerprint(hex.EncodeToString(digest[:])), MaxContextBytes: contextBytes, Modalities: []capability.ModelModality{capability.ModalityText}, Capabilities: []capability.ModelCapability{capability.CapabilityAdvisory}, SizeBytes: item.Meta.Size, Runtime: item.OwnedBy, Quantization: item.Meta.FileType})
 	}
 	return models, ProviderProbe{Health: capability.HealthAvailable}
 }

adapters/models/openai_compatible_local_test.go

@@ -18,6 +18,34 @@ type captureRoundTripper struct {
 	body          []byte
 }
 
+type modelsMetadataRoundTripper struct{}
+
+func (modelsMetadataRoundTripper) RoundTrip(request *http.Request) (*http.Response, error) {
+	return &http.Response{
+		StatusCode: http.StatusOK,
+		Body:       io.NopCloser(strings.NewReader(`{"data":[{"id":"medium-model","owned_by":"llama.cpp","meta":{}}]}`)),
+		Header:     make(http.Header),
+		Request:    request,
+	}, nil
+}
+
+func TestOpenAICompatibleLocalAdapterNormalizesMinimalModelMetadata(t *testing.T) {
+	adapter, err := NewOpenAICompatibleLocalAdapter("http://gateway/v1", modelsMetadataRoundTripper{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	models, probe := adapter.Discover(context.Background())
+	if probe.Health != capability.HealthAvailable || len(models) != 1 {
+		t.Fatalf("unexpected discovery result: probe=%+v models=%+v", probe, models)
+	}
+	if models[0].MaxContextBytes != compatibleDefaultContextBytes {
+		t.Fatalf("context bound=%d, want %d", models[0].MaxContextBytes, compatibleDefaultContextBytes)
+	}
+	if len(models[0].Capabilities) != 1 || models[0].Capabilities[0] != capability.CapabilityAdvisory {
+		t.Fatalf("capabilities=%v, want advisory", models[0].Capabilities)
+	}
+}
+
 func TestOpenAICompatibleLocalAdapterUsesConfiguredTimeout(t *testing.T) {
 	adapter, err := NewOpenAICompatibleLocalAdapterWithAPIKeyAndTimeout("http://gateway/v1", "", &captureRoundTripper{}, 47*time.Second)
 	if err != nil {