mcp-developer
Use when building, debugging, or extending MCP servers or clients that connect AI systems with external tools and data sources. Invoke to implement tool handlers, configure resource providers, set up stdio/HTTP/SSE transport layers, validate schemas with Zod or Pydantic, debug protocol compliance issues, or scaffold complete MCP server/client projects using TypeScript or Python SDKs.
npx skills add Jeffallan/claude-skills --skill mcp-developer --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# 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: | Topic | Reference | Load When |
- Core Workflow
- Reference Guide
- Minimal Working Example
- TypeScript — Tool with Zod Validation
- Python — Tool with Pydantic Validation
- Constraints
- MUST DO
- MUST NOT DO
- Output Templates
What does the mcp-developer skill do?
Use when building, debugging, or extending MCP servers or clients that connect AI systems with external tools and data sources. Invoke to implement tool handlers, configure resource providers, set up stdio/HTTP/SSE transport layers, validate schemas with Zod or Pydantic, debug protocol compliance issues, or scaffold complete MCP server/client projects using TypeScript or Python SDKs.
How do I install it?
Run `npx skills add Jeffallan/claude-skills --skill mcp-developer --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From Jeffallan/claude-skills, a repository with 10,871 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.