What problem does it solve? Before implementation begins, teams need confidence that PRD and spec documents are complete and well-formed. This Skill automates that gate by diffing a branch against its base, locating PRD files, gathering PR and linked-issue context, and delegating a structured quality review. ## Core Features & Use Cases - Automatic PRD Detection: Diffs a branch against its base and identifies PRD/spec candidates by filename and path patterns, including Japanese terms like 要件 and 仕様. - Rich Context Gathering: Pulls PR titles, descriptions, comments, and linked GitHub issues (same-repo, cross-repo, or full URL) to inform the review. - Structured Verdict: Delegates to a prd-reviewer agent that produces a severity-ranked report (CRITICAL to LOW) with a summary table and final verdict. - Use Case: A product manager pushes a branch containing a new spec document and asks for a review before handing it to engineering; the Skill fetches the branch, reads the spec, checks linked issues for business context, and returns a completeness verdict. ## Quick Start Ask the assistant to review the PRD on your current feature branch against main before implementation begins.