mcp-serverlisted

# MCP Server Development ## Overview Comprehensive skill for developing Model Context Protocol (MCP) servers. MCP is a standardized protocol that enables AI agents (like Claude) to access external tools, data sources, and services through a unified interface. Covers: MCP protocol fundamentals, building servers in Python (FastMCP) and TypeScript, agent-centric tool design, Claude Code integration (plugins, skills, hooks), production deployment, evaluation-driven development, and plugin packaging. ## When to Use - Building new MCP servers from scratch - Integrating external APIs or services as MCP tools - Creating Claude Code plugins - Designing tools optimized for AI agent consumption - Configuring MCP servers for Claude Desktop or other clients - Writing evaluations to test MCP server quality - Implementing security, caching, or production patterns ## When NOT to Use - Designing tool interfaces or consolidation patterns for agents (use tool-design) - Prompt engineering or prompt optimization (use prompt-engineering) - Building the actual business logic your tools wrap (that's application development) - Debugging Claude's behavior when calling tools (that's a Claude usage issue) ## Decision Tree ``` What are you building? │ ├─ New MCP server │ ├─ Python codebase or data/ML integration? → FastMCP (Python) │ ├─ TypeScript/Node.js codebase? → @modelcontextprotocol/sdk (TypeScript) │ └─ Need both? → Build in Python first, add TypeScript wrapper if needed │ ├─ Existing