Anthropic Write Spec
SkillTurn a vague feature idea into a structured PRD with goals, non-goals, success metrics and acceptance criteria.
by anthropics Listed Jan 23, 2026
Clone or download it from github.com, then drop the folder into ~/.claude/skills/ (Claude Code) or your agent's skills directory.
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About Anthropic Write Spec
Anthropic's product-management skill for going from "wouldn't it be nice if" to an actual spec. It scopes the problem, separates goals from non-goals, sets success metrics and acceptance criteria, and can break a big ask into phases.
A good fit for builders who want the agent to write the spec before it writes the code.
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