diff --git a/apps/ai-game-creator-shell/src/components/ChatMarkdownMessage/index.tsx b/apps/ai-game-creator-shell/src/components/ChatMarkdownMessage/index.tsx
index ab7df6394..057860d7c 100644
--- a/apps/ai-game-creator-shell/src/components/ChatMarkdownMessage/index.tsx
+++ b/apps/ai-game-creator-shell/src/components/ChatMarkdownMessage/index.tsx
@@ -28,8 +28,14 @@ export class MarkdownErrorBoundary extends Component<
     return { hasError: true };
   }
 
-  componentDidCatch(_error: unknown, _errorInfo: ErrorInfo) {
+  componentDidCatch(error: unknown, errorInfo: ErrorInfo) {
     // Keep the original message visible without logging its potentially sensitive content.
+    const errorName =
+      error instanceof Error && error.name ? error.name : 'UnknownError';
+    console.error('[chat-markdown] render failed', {
+      errorName,
+      hasComponentStack: Boolean(errorInfo.componentStack?.trim()),
+    });
   }
 
   componentDidUpdate(prevProps: MarkdownErrorBoundaryProps) {