Fission-AI/OpenSpec
Spec-driven development (SDD) for AI coding assistants.
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From the publisher
README & documentation
Source previewRead the project’s overview, installation instructions and usage examples. The original README is the source of truth.
The most loved spec framework. [](https://github.com/Fission-AI/OpenSpec/stargazers) [](https://www.npmjs.com/package/@fission-ai/openspec) [](https://github.com/Fission-AI/OpenSpec/graphs/contributors) Our philosophy: Follow @0xTab on X for updates · Join the OpenSpec Discord for help and questions. What do the specs actually look like? Plain Markdown — requirements with concrete scenarios, no special syntax to learn. Here's what goes in the specs/ folder created above: Your AI writes these; you review the plan before any code is written. OpenSpec is built with OpenSpec — browse this repo's live specs and in-flight changes for real examples at scale. OpenSpec Dashboard Solo, OpenSpec keeps you and your AI honest on a single repo. On a team, the hard part moves: a feature spans the API server, the web app, and a shared library; requirements are owned by one team and consumed by others; planning starts before any code exists. Stores are the answer — planning in a repo of its own. The same openspec/…
Read the full README ↗ · Preview checked 2026-11-03T17:00:50.677Z
Inside the original README — Document outline
- See it in action
- Why teams adopt OpenSpec
- Quick Start
- Docs
- Community schemas
- Why OpenSpec?
- How we compare
- Updating OpenSpec
- Usage Notes
- Contributing
- Other
- License
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Links from the README
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Documentation belongs to its respective authors. Reported project/model license: MIT. A listing is not a grant of reuse or training rights. Confirm the document’s own terms at the source.
What this repository does
Spec-driven development (SDD) for AI coding assistants.
Repository facts
- Owner
- Fission-AI
- Primary language
- TypeScript
- Stars
- 70,300
- Forks
- 4,811
- Open issues + pull requests
- 236
- License
- MIT
- Archived
- No
- Default branch
- main
- Created
- 2025-08-05T10:37:45.000Z
- Last push
- 2026-09-18T23:23:30.000Z
Topics and intended use
Owner-supplied topics: ai, context-engineering, engineering, planning, prd, sdd, sdlc, spec, spec-driven-development, specification
Review the README for scope, installation, examples and limitations. We do not run repository code or certify it.
Evaluate before installing
Review licensing and dependencies, inspect recent commits and unresolved issues, and test in an isolated environment before production use. Stars and forks alone cannot answer these questions.
Source and freshness
Source: GitHub. Metadata observed 2026-09-25T12:02:43.487Z. Daily imports are snapshots, not real-time monitoring.
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