https://openspec.dev/
OpenSpec — A lightweight spec‑driven framework
OpenSpec is a lightweight, spec‑driven framework for coding agents and CLIs — universal, open source, and no API keys or MCP required.
openspeclightweightframework
https://openspec.pro/
OpenSpec - Spec-Driven Development for AI Coding Assistants | Lightweight SDD Framework
OpenSpec is a lightweight, open-source spec-driven development (SDD) framework for AI coding assistants: proposals, specs, design, and tasks in your repo....
spec driven developmentai coding assistantsopenspec