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.
metadata	{"yiyi":{"emoji":"🔌","requires":{}}}

MCP Server Development Guide

Overview

Create MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools.

High-Level Workflow

Phase 1: Deep Research and Planning

• Study MCP Protocol Documentation: https://modelcontextprotocol.io/sitemap.xml
• Recommended stack: TypeScript with Streamable HTTP for remote, stdio for local
• Load framework docs from reference/ directory

Phase 2: Implementation

• Set up project structure (see language-specific guides in reference/)
• Implement core infrastructure: API client, error handling, response formatting, pagination
• Implement tools with proper input/output schemas and annotations

Phase 3: Review and Test

• Code quality review (DRY, error handling, type coverage)
• Build and test with MCP Inspector: npx @modelcontextprotocol/inspector

Phase 4: Create Evaluations

• Create 10 complex, realistic evaluation questions
• Output as XML evaluation file

Reference Files in reference/ directory:

• mcp_best_practices.md - Core guidelines
• node_mcp_server.md - TypeScript patterns and examples
• python_mcp_server.md - Python patterns and examples
• evaluation.md - Evaluation creation guide