TypeScript SDKでMCPサーバーを構築する方法

{
  "compilerOptions": {
    "target": "ES2020",
    "module": "ESNext",
    "moduleResolution": "Node",
    "outDir": "./dist",
    "rootDir": "./src",
    "strict": true,
    "esModuleInterop": true
  },
  "include": ["src"]
}

import { McpServer, ResourceTemplate } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { z } from "zod";
 
const server = new McpServer({
  name: "Demo",
  version: "1.0.0"
});
 
server.tool(
  "add",
  { a: z.number(), b: z.number() },
  async ({ a, b }) => ({
    content: [{ type: "text", text: String(a + b) }]
  })
);
 
server.resource(
  "greeting",
  new ResourceTemplate("greeting://{name}", { list: undefined }),
  async (uri, { name }) => ({
    contents: [{
      uri: uri.href,
      text: `안녕하세요, ${name}님!`
    }]
  })
);
 
const transport = new StdioServerTransport();
await server.connect(transport);

npx tsc
node dist/index.js

"scripts": {
  "build": "tsc",
  "start": "node dist/index.js",
  "dev": "npm run build && npm run start"
}

{
  "compilerOptions": {
    "types": ["node"]
  }
}