mcp-demo/server copy.js

import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import {
  ListPromptsRequestSchema,
  GetPromptRequestSchema,
} from "@modelcontextprotocol/sdk/types.js";

const server = new Server(
  {
    name: "example-server",
    version: "1.0.0",
  },
  {
    capabilities: {
      prompts: {},
    },
  }
);

server.setRequestHandler(ListPromptsRequestSchema, async () => {
  return {
    prompts: [
      {
        name: "example-prompt",
        description: "An example prompt template",
        arguments: [
          {
            name: "arg1",
            description: "Example argument",
            required: true,
          },
        ],
      },
    ],
  };
});

server.setRequestHandler(GetPromptRequestSchema, async (request) => {
  if (request.params.name !== "example-prompt") {
    throw new Error("Unknown prompt");
  }
  return {
    description: "Example prompt",
    messages: [
      {
        role: "user",
        content: {
          type: "text",
          text: "Example prompt text",
        },
      },
    ],
  };
});

const transport = new StdioServerTransport();
await server.connect(transport);