This is the workhorse of the SpecKit workflow. It takes a natural language feature request and turns it into a structured specification following a template, handling the whole ceremony of branch naming, numbering, and file creation. The interesting bit is how opinionated it is about minimizing back and forth. It only asks for clarification on three things maximum, makes informed guesses for everything else, and documents those assumptions. Before finishing, it validates the spec against a quality checklist and iteratively fixes issues like leaked implementation details or ambiguous requirements. You'd reach for this when you want to formalize a feature idea without spending an hour in a requirements meeting first.
npx skills add https://github.com/dceoy/speckit-agent-skills --skill speckit-specify