Open speckit library · MIT · no paywall
A speckit is a complete, structured specification of an app: README, CONSTITUTION rules and step-by-step modules. Pick one, download it, paste it into Claude Code, Cursor or Copilot - and let the agent build. Free, MIT-licensed, no account needed to download.
No account needed to browse and download.
A speckit is a specification kit: everything a coding agent needs to build a piece of software without guessing. Not a prompt, not a code dump - a structured document you can version, fork and improve.
What the solution is, who it is for, screenshots and how to use the spec.
Cross-cutting rules every module must respect: stack, conventions, security, quality bar.
The implementation broken into ordered articles with acceptance criteria - the agent works through them one by one.
A machine-readable manifest with metadata, version, author and licence.
Build something today, or share a specification you have already designed - both are free.
Skip the blank prompt. Start from a specification someone has already thought through.
Publish it once and let others build on it - with attribution back to you.
Find a speckit for the kind of system you need.
Get a ZIP bundle, single markdown or JSON - or copy to clipboard.
Paste the spec into your coding agent and let it build.
Adapt the spec to your case and publish your version back.
Writing a good spec is hard work. Publish it once and it becomes a versioned, forkable, MIT-licensed asset with statistics - instead of a file lost in a chat history.
Create a free account and publishEverything public here is MIT-licensed: use it in any project, commercial or not. Attribution appreciated, not required.
Read about the licenceYes. Browsing, downloading, publishing and forking are free. There are no paid plans and no ads.
No. Anonymous reading and downloading is a core principle. An account is only needed to publish, fork or edit.
Any agent that reads markdown: Claude Code, Cursor, GitHub Copilot, OpenAI Codex, Gemini CLI, Windsurf, Aider and others. A speckit is plain text - paste it or point the agent at the unzipped folder.
Pure markdown: a ZIP bundle with articles, assets and a machine-readable speckit.json, a single concatenated markdown file, JSON, or straight to the clipboard.
Create a free account (Google or e-mail), click "New specification", fill in README, CONSTITUTION and the steps in the built-in editor, then publish a version. It stays private until you decide otherwise.
You keep your copyright. By publishing publicly you irrevocably license the content under MIT, so anyone can use it.
Yes. Specifications are private by default and only become public when you decide.
GitHub hosts code. Open Speckit hosts the specifications agents turn into code - with structure, versioning and diffing designed for specs.
Download a specification in seconds - or publish yours and watch it get used.