MCP серверы

User: "Покажи топ-10 пользователей по количеству заказов"
Agent: Использую query tool...
SQL: SELECT user_id, COUNT(*) as orders FROM orders GROUP BY user_id ORDER BY orders DESC LIMIT 10

Connection Type: STDIO
Command: npx
Arguments: ["-y", "@modelcontextprotocol/server-filesystem", "/data"]
Environment Variables:
  NODE_OPTIONS: --max-old-space-size=4096

Connection Type: SSE
URL: https://mcp-server.example.com/sse
Headers:
  Authorization: Bearer xxx

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

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

server.setRequestHandler("tools/list", async () => ({
  tools: [{
    name: "hello",
    description: "Says hello",
    inputSchema: {
      type: "object",
      properties: {
        name: { type: "string", description: "Name to greet" }
      },
      required: ["name"]
    }
  }]
}));

server.setRequestHandler("tools/call", async (request) => {
  if (request.params.name === "hello") {
    const name = request.params.arguments?.name || "World";
    return {
      content: [{ type: "text", text: `Hello, ${name}!` }]
    };
  }
  throw new Error("Unknown tool");
});

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