Make stdout/error echo for client and server

Author: anaisbetts

bin/cli.js

@@ -51,12 +51,17 @@ async function main() {
       ...(command ? [`--env`, command] : []),
       ...(mcpServerArgs ? ["--args", mcpServerArgs.join(" ")] : []),
     ],
-    { env: { ...process.env, PORT: SERVER_PORT }, signal: abort.signal },
+    {
+      env: { ...process.env, PORT: SERVER_PORT },
+      signal: abort.signal,
+      echoOutput: true,
+    },
   );
 
   const client = spawnPromise("node", [inspectorClientPath], {
     env: { ...process.env, PORT: CLIENT_PORT },
     signal: abort.signal,
+    echoOutput: true,
   });
 
   // Make sure our server/client didn't immediately fail

package-lock.json

@@ -36,11 +36,11 @@
     "@modelcontextprotocol/inspector-client": "0.2.4",
     "@modelcontextprotocol/inspector-server": "0.2.4",
     "concurrently": "^9.0.1",
-    "spawn-rx": "^5.0.4",
+    "spawn-rx": "^5.1.0",
     "ts-node": "^10.9.2"
   },
   "devDependencies": {
     "@types/node": "^22.7.5",
     "prettier": "3.3.3"
   }
-}
+}