From OpenSpec · · 1m 20s
OpenSpec: Build the right thing, right
A lightweight framework that keeps teams and AI agents aligned on what to build and how to build it.
In brief
A lightweight framework that keeps teams and AI agents aligned on what to build and how to build it. OpenSpec helps teams capture requirements in specs, validate them, and verify implementations match, used by 265,000 developers monthly. Originally reported by OpenSpec.
Specs keep teams aligned
OpenSpec captures what you want to build in a spec and keeps your team and coding agents aligned as work evolves. It helps refine requirements and validate they describe the right thing.
“OpenSpec helps you build the right thing and build it right.”
Verify implementation matches spec
OpenSpec verifies that your actual implementation matches what you specified. This closes the gap between what was planned and what was built.
Massive adoption in the wild

OpenSpec has 68,000 GitHub stars and is used by more than 265,000 developers monthly. A new spec is created with OpenSpec every two seconds.
Works with every AI coding tool
OpenSpec integrates with Claude, Cursor, GitHub Copilot, Gemini, and 33+ other AI coding assistants and IDEs. Install via npm, pnpm, bun, yarn, or nix.
Five-step workflow for specs
Use /opsx commands to explore your codebase, propose specs and design docs, apply implementations, verify they match, and archive completed changes.
Open source and MIT licensed
OpenSpec is built in the open on GitHub with an MIT license. Version 1.13.0 is available now with active community support on Discord.
The big picture
OpenSpec helps teams capture requirements in specs, validate them, and verify implementations match, used by 265,000 developers monthly.
