A lightweight spec framework that produces requirements, designs, and task plans before coding
A lightweight spec layer that produces proposals, requirements and scenarios, technical designs, and task artifacts before coding (/opsx:explore, /opsx:propose, /opsx:apply, /opsx:verify, /opsx:archive). Lighter and more iterative than Spec Kit, it reduces requirements drift without turning long plans into rigid phase gates, and works across more than 30 coding assistants using the same plain Markdown files. Particularly well suited to existing (brownfield) projects.
Teams that want a consistent requirements workflow across tools without heavyweight enterprise ceremony.
Telemetry is enabled by default (command name and version only); disable it with DO_NOT_TRACK. Requires Node.js 22.12+. You need to set up TDD, debugging, and review separately.
npm install -g @fission-ai/openspec@latest openspec init