Write a feature spec or PRD from a problem statement or feature idea. Use when turning a vague idea or user request into a structured document, scoping a feature with goals and non-goals, defining success metrics and acceptance criteria, or breaking a big ask into a phased spec.
Install
npx skills add anthropics/knowledge-work-plugins --skill write-specnpx skills add anthropics/knowledge-work-plugins --skill write-spec -a claude-code -gnpx skills add anthropics/knowledge-work-plugins --skill write-spec -a codex -ggemini skills install https://github.com/anthropics/knowledge-work-plugins.git --path product-management/skills/write-specgh skill install anthropics/knowledge-work-plugins write-specgit clone --depth 1 https://github.com/anthropics/knowledge-work-plugins /tmp/anthropics__knowledge-work-plugins
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/anthropics__knowledge-work-plugins/product-management/skills/write-spec ~/.claude/skills/write-spec # Claude Code
cp -R /tmp/anthropics__knowledge-work-plugins/product-management/skills/write-spec ~/.agents/skills/write-spec # Codex, Cursor, Gemini CLI, Copilot, OpenCode