Spec Kit

GitHub's spec-driven development toolkit. Open source (MIT), free to use.

How to use it

Install it with the open Skills CLI (needs Node.js), then restart your agent:

npx skills add github/spec-kit
  1. Download the ZIP from this page and unzip it.
  2. Put the github-spec-kit folder in .claude/skills/ inside your project (or ~/.claude/skills/ for all projects).
  3. Restart Claude Code and call it with /github-spec-kit.

More for agent skills

  • gstack: Garry Tan's opinionated Claude Code setup (23 tools). Open source (MIT), free to use.
  • Addy Osmani Agent Skills: Production-grade engineering skills for coding agents. Open source (MIT), free to use.
  • BMAD METHOD: Agile AI-driven development method (agents + workflows). Open source (MIT), free to use.