mcp-expert

Installation
SKILL.md

MCP Expert

Overview

Definitive resource for building and managing Model Context Protocol ecosystems. Covers the full lifecycle from server development and transport configuration to security, elicitation, and async task execution. Designs agent-first tool interfaces that minimize token usage and maximize LLM accuracy.

When to use: Building MCP servers, designing tool interfaces, configuring transports (Stdio/Streamable HTTP), implementing OAuth 2.1, troubleshooting connectivity, using elicitation for server-initiated user interaction.

When NOT to use: Application-level business logic, non-MCP API design, frontend UI components, general HTTP API development unrelated to MCP.

Quick Reference

Pattern API/Approach Key Points
Outcome-oriented tools Single-call operations Avoid chatty multi-step APIs
Argument flattening Flat Zod schemas with descriptions Reduce model hallucination
Progressive disclosure Return mcp:// URIs for large data Agent reads partially via resources/read
Retryable tools Return retry_with suggestions Help LLM self-correct on bad inputs
Helpful errors Descriptive strings with fix guidance Never return raw exceptions or stack traces
Related skills
Installs
39
GitHub Stars
11
First Seen
Feb 24, 2026