Use to turn a raw feature idea into a reviewed spec.md — a lightweight Socratic interview front (capture the idea, deep-dive the problem) merged with a full product spec (context, goals, user stories, acceptance criteria, NFRs, KPIs). Triggers on "specify {slug}", "spec for {slug}", "write the spec", "capture this idea", "draft requirements for {slug}", "/sdd:specify {slug}", "напиши специфікацію {slug}", "опиши вимоги", "зафіксуй ідею". Opens by setting the interview-depth dial (easy/medium/hard), drafts from templates/spec.md, validates each acceptance criterion Socratically, runs a clean-context critic, then writes docs/features/{slug}/spec.md. The ideation analyses (competitive research, strategic approaches, multi-perspective review, devil's-advocate) run as named subagents gated by the depth dial — easy skips them, hard runs the full suite.
$npx -y skills add genkovich/sdd --skill specifyInstalls into the current project.
Run `npx skills use "https://github.com/genkovich/sdd" --skill "genkovich/sdd/specify"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/genkovich/sdd" that are relevant to the current task. Run `npx skills add "https://github.com/genkovich/sdd"` and select the relevant skills, then follow their instructions.