set network transport to unknown in case it's not http / sse / stdio

Author: betegon

packages/core/src/integrations/mcp-server/attributeExtraction.ts

@@ -54,7 +54,13 @@ export function getTransportTypes(transport: MCPTransport): { mcpTransport: stri
     return { mcpTransport: 'unknown', networkTransport: 'unknown' };
   }
 
-  const networkTransport = transportName.includes('stdio') ? 'pipe' : 'tcp';
+  let networkTransport = 'unknown';
+
+  if (transportName.includes('stdio')) {
+    networkTransport = 'pipe';
+  } else if (transportName.includes('http') || transportName.includes('sse')) {
+    networkTransport = 'tcp';
+  }
 
   return {
     mcpTransport: transportName,

packages/core/test/lib/integrations/mcp-server/transportInstrumentation.test.ts

@@ -559,6 +559,18 @@ describe('MCP Server Transport Instrumentation', () => {
       expect(result.mcpTransport).toBe('unknown');
       expect(result.networkTransport).toBe('unknown');
     });
+
+    it('returns unknown network transport for unrecognized transport types', () => {
+      const transport = {
+        constructor: { name: 'CustomTransport' },
+        onmessage: () => {},
+        send: async () => {},
+      };
+      const result = getTransportTypes(transport);
+
+      expect(result.mcpTransport).toBe('customtransport');
+      expect(result.networkTransport).toBe('unknown');
+    });
   });
 
   describe('buildTransportAttributes sessionId handling', () => {