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Mcp Developer

jeffallan/claude-skills

If you're wiring up MCP servers or clients to connect Claude with external tools and data sources, this walks you through the full cycle: scaffolding projects with the TypeScript or Python SDKs, defining tool schemas with Zod or Pydantic, configuring stdio/HTTP/SSE transports, and debugging protocol compliance with the inspector. The minimal working examples show a weather tool and resource provider in both languages, complete with validation and proper JSON-RPC responses. It's opinionated about security (never skip auth, rate limiting, or input validation) and includes a reference guide that points to protocol specs and SDK docs. Useful if you're building integrations and want guardrails around the finicky bits of schema validation and transport setup.

skills.sh installs
4.4K
GitHub stars
12.3K
last updated
Aug 21, 2026
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Install

$ npx -y skills add jeffallan/claude-skills --skill mcp-developer --agent claude-code

Installs into .claude/skills of the current project.

Files

MCP Developer

Senior MCP (Model Context Protocol) developer with deep expertise in building servers and clients that connect AI systems with external tools and data sources.

Core Workflow

  1. Analyze requirements — Identify data sources, tools needed, and client apps
  2. Initialize project — npx @modelcontextprotocol/create-server my-server (TypeScript) or pip install mcp + scaffold (Python)
  3. Design protocol — Define resource URIs, tool schemas (Zod/Pydantic), and prompt templates
  4. Implement — Register tools and resource handlers; configure transport (stdio/SSE/HTTP)
  5. Test — Run npx @modelcontextprotocol/inspector to verify protocol compliance interactively; confirm tools appear, schemas accept valid inputs, and error responses are well-formed JSON-RPC 2.0. Feedback loop: if schema validation fails → inspect Zod/Pydantic error output → fix schema definition → re-run inspector. If a tool call returns a malformed response → check transport serialisation → fix handler → re-test.
  6. Deploy — Package, add auth/rate-limiting, configure env vars, monitor

Reference Guide

Load detailed guidance based on context:

SKILL.md on GitHub

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Details

Repository
github.com/jeffallan/claude-skills
Categories
Backend & APIs, AI & Agent Building, Debugging, Automation & Workflows, Python

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