openspec
A framework for spec-driven development with AI coding assistants. It helps teams agree on written specs and plans before the assistant writes code.
Pick a small issue you can reproduce, then fix it with your AI coding agent.
Share on XLicense: MIT
Overview
OpenSpec is a framework for spec-driven development with AI coding assistants. Instead of going straight from an idea to code, you and the assistant first agree on written specs. Slash commands such as propose, explore, apply and archive create a change folder holding a proposal, specs, a design and a task checklist, then work through the tasks and archive the result. Specs are plain Markdown with requirements and scenarios. Its stated philosophy is fluid, iterative and suitable for existing projects.
Key features
- Slash commands to explore, propose, apply and archive changes
- Each change gets a proposal, specs, design and tasks
- Specs are plain Markdown with requirements and scenarios
- Meant for existing projects as well as new ones
Best for
Good for developers and teams who use AI coding assistants and want requirements agreed in writing before code is generated.
- Upstream
- Fission-AI/OpenSpec
- Fork on GitHub
- Guo-astro/openspec
- Upstream stars
- 72k
- Category
- AI agents and LLM tools
- Language
- TypeScript
- License
- MIT
- Forked
- 2025-10-13
- Sync status
- In syncLast synced 2026-10-19
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