chore: switch to module ESNext + moduleResolution bundler (#2095)

examples/client-quickstart/package.json

@@ -15,6 +15,7 @@
         "@modelcontextprotocol/client": "workspace:^"
     },
     "devDependencies": {
+        "@modelcontextprotocol/tsconfig": "workspace:^",
         "@types/node": "^24.10.1",
         "typescript": "catalog:devTools"
     }

examples/client-quickstart/src/index.ts

@@ -116,7 +116,8 @@ class MCPClient {
           messages,
         });
 
-        finalText.push(followUp.content[0].type === 'text' ? followUp.content[0].text : '');
+        const firstBlock = followUp.content[0];
+        finalText.push(firstBlock?.type === 'text' ? firstBlock.text : '');
       }
     }
 
@@ -156,13 +157,14 @@ class MCPClient {
 
 //#region main
 async function main() {
-  if (process.argv.length < 3) {
+  const serverScriptPath = process.argv[2];
+  if (!serverScriptPath) {
     console.log('Usage: node build/index.js <path_to_server_script>');
     return;
   }
   const mcpClient = new MCPClient();
   try {
-    await mcpClient.connectToServer(process.argv[2]);
+    await mcpClient.connectToServer(serverScriptPath);
 
     // Check if we have a valid API key to continue
     const apiKey = process.env.ANTHROPIC_API_KEY;

examples/client-quickstart/tsconfig.json

@@ -1,15 +1,11 @@
 {
+    "extends": "@modelcontextprotocol/tsconfig",
     "compilerOptions": {
-        "target": "ES2023",
-        "lib": ["ES2023"],
-        "module": "Node16",
-        "moduleResolution": "Node16",
         "outDir": "./build",
         "rootDir": "./src",
-        "strict": true,
-        "esModuleInterop": true,
-        "skipLibCheck": true,
-        "forceConsistentCasingInFileNames": true,
+        "declaration": false,
+        "declarationMap": false,
+        "types": ["node"],
         "paths": {
             "@modelcontextprotocol/client": ["./node_modules/@modelcontextprotocol/client/src/index.ts"],
             "@modelcontextprotocol/client/stdio": ["./node_modules/@modelcontextprotocol/client/src/stdio.ts"],