MCP Builder
Official skill that scaffolds an MCP server from an API description.
Use it for
Turning an internal API into a small MCP server with tools, schemas, and error handling
Skip it if
Public servers with authentication, rate limiting, and multi-tenant concerns — that is a product, not a scaffold
What it is
An official skill for building MCP servers: it sets up the project, defines tool schemas, writes handlers, and documents the transport. The value is in the boilerplate decisions — naming, pagination, error shape — that otherwise get made differently on every project. Start from a working skeleton, then harden it.
Install
Clone the repository, then copy the skill folder into your agent's skills directory — ~/.claude/skills/ for Claude Code. Skills are plain files: no build step, no daemon.
npx skills add https://github.com/anthropics/skillsHow to judge it
Read the SKILL.md before you install. A good skill states when it applies, what it must not do, and how to verify the result. A skill that only lists adjectives will change the agent's tone without improving its output — skip those.
Other Coding & Dev skills
- Web Artifacts Builder — Official skill for building a self-contained web app as a single artifact.
- Superpowers — An agentic skills framework: planning, execution, and review as reusable skills.
- Agents Skill Collection — A curated set of specialist agents and their skills, organised by domain.