MCP Server Development Guide

"The quality of an MCP server is measured by how well it enables LLMs to accomplish real-world tasks."

Overview

This skill guides you through creating Model Context Protocol (MCP) servers — tools that enable LLMs to interact with external services. MCP servers expose capabilities as typed tools that agents can discover and invoke.

When to Invoke

• User asks to "build an MCP server" or "create MCP tools"
• Integrating an external API with Claude
• Exposing local system capabilities (files, databases, services) to an agent
• Creating tools for an agent to call

Four-Phase Development Workflow

Phase 1: Deep Research and Planning