OpenSpec is a lightweight and configurable framework designed for creating and managing software specifications. It helps teams and coding agents stay aligned as projects evolve by refining requirements and validating that implementations match the intended design. The tool addresses the dual goal of building the right product and executing it correctly.

Compatibility spans major AI coding assistants, including Claude Code, Codex, Cursor, GitHub Copilot, and Gemini CLI, with over 33 integrations supported. The workflow is structured around a series of operational commands: map the problem and understand the codebase, draft proposals and specifications, implement tasks from the spec, verify that the implementation matches the original requirements, and archive completed changes. The project is open-source and hosted on GitHub, currently maintaining 68.0k stars and reaching version 1.13.0.

Community engagement is facilitated through a Discord channel and the project's GitHub repository.