mcp-builder

name	mcp-builder
description	Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services.
version	1.0.0
author	Anthropic
license	Apache 2.0
triggers	["MCP server","Model Context Protocol","create MCP","MCP tools","API integration"]
tools	["file_read","file_write","shell"]
models	["qwen3-coder","qwen3-32b"]

MCP Builder

4-Phase Process

Phase 1: Deep Research and Planning

• Study MCP specification: https://modelcontextprotocol.io/sitemap.xml
• Review framework documentation
• Plan tool selection

Phase 2: Implementation

• Set up project structure
• Implement core infrastructure
• Register tools with descriptions and schemas

Phase 3: Review and Test

• Code quality review
• Build and test with MCP Inspector

Phase 4: Create Evaluations

• Generate 10 complex test questions
• Verify answers

TypeScript Example

import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';

const server = new McpServer({ name: 'my-server', version: '1.0.0' });

server.registerTool('my_tool', {
  description: 'Tool description',
  inputSchema: z.object({ param: z.string() }),
}, async ({ param }) => {
  return { content: [{ type: 'text', text: 'Result' }] };
});

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

Qwen Code MCP Configuration

{
  "mcpServers": {
    "myServer": {
      "command": "node",
      "args": ["dist/server.js"],
      "cwd": "./mcp-servers/my-server",
      "timeout": 30000
    }
  }
}

Important Notes

Missing References: The ./reference/ directory with mcp_best_practices.md, node_mcp_server.md, etc. is not included. Consult the MCP SDK documentation directly.

Qwen Code Integration

Use /skills mcp-builder to invoke.