mcp-builder Claude Code Skill

It walks through a four-phase process: researching MCP design and protocol documentation, implementing the server (in TypeScript or Python), reviewing and testing the code, and finally creating evaluation questions to verify the server works well in practice. It gives concrete recommendations, such as favoring TypeScript with the official SDK and using streamable HTTP or stdio transports depending on deployment. It also links to supplementary reference files covering best practices, language-specific implementation patterns, and evaluation methodology. The guide is aimed at developers who want to create MCP tools with well-designed schemas, clear naming, and actionable error handling.