diff --git a/docs/operator/crd-api.md b/docs/operator/crd-api.md
index 8e74d0a1c1..0bb41df8fa 100644
--- a/docs/operator/crd-api.md
+++ b/docs/operator/crd-api.md
@@ -4813,6 +4813,7 @@ This type is shared with the Kubernetes operator CRD (VirtualMCPServer.Status.Di
 | `circuitBreakerState` _string_ | CircuitBreakerState is the current circuit breaker state (closed, open, half-open).<br />Empty when circuit breaker is disabled or not configured. |  | Enum: [closed open half-open] <br />Optional: \{\} <br /> |
 | `circuitLastChanged` _[Time](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.27/#time-v1-meta)_ | CircuitLastChanged is the timestamp when the circuit breaker state last changed.<br />Empty when circuit breaker is disabled or has never changed state. |  | Optional: \{\} <br /> |
 | `consecutiveFailures` _integer_ | ConsecutiveFailures is the current count of consecutive health check failures.<br />Resets to 0 when the backend becomes healthy again. |  | Optional: \{\} <br /> |
+| `mcpRevision` _string_ | MCPRevision is the backend's negotiated MCP protocol revision<br />("2026-07-28" or "2025-11-25"). Empty when the backend has not been probed. |  | Optional: \{\} <br /> |
 
 
 
diff --git a/pkg/vmcp/client/schema_ingestion_regression_test.go b/pkg/vmcp/client/schema_ingestion_regression_test.go
index 628245c3f2..e44f18d1c3 100644
--- a/pkg/vmcp/client/schema_ingestion_regression_test.go
+++ b/pkg/vmcp/client/schema_ingestion_regression_test.go
@@ -108,20 +108,19 @@ func TestRegression_ToolSchemaFidelity_PreservesCompositors(t *testing.T) {
 	}))
 	t.Cleanup(srv.Close)
 
-	h := &httpBackendClient{
-		clientFactory: func(ctx context.Context, target *vmcp.BackendTarget, _ bool) (*client.Client, error) {
-			c, err := client.NewStreamableHttpClient(
-				target.BaseURL,
-				mcptransport.WithHTTPTimeout(30*time.Second),
-			)
-			if err != nil {
-				return nil, err
-			}
-			if err := c.Start(ctx); err != nil {
-				return nil, err
-			}
-			return c, nil
-		},
+	h := newProbeClient(t)
+	h.clientFactory = func(ctx context.Context, target *vmcp.BackendTarget, _ bool) (*client.Client, error) {
+		c, err := client.NewStreamableHttpClient(
+			target.BaseURL,
+			mcptransport.WithHTTPTimeout(30*time.Second),
+		)
+		if err != nil {
+			return nil, err
+		}
+		if err := c.Start(ctx); err != nil {
+			return nil, err
+		}
+		return c, nil
 	}
 
 	target := &vmcp.BackendTarget{