What problem does it solve? Writing a PRD that is decision-ready, scoped honestly, and usable by downstream UX, architecture, and story workflows is hard; this Skill guides users through creating, updating, or validating PRDs with calibrated rigor. ## Core Features & Use Cases - Three intent modes: Create a new PRD from a brain dump, Update an existing PRD against a change signal, or Validate a PRD with a seven-dimension quality rubric without modifying it. - Adaptive structure: An Essential Spine template plus an Adapt-In Menu of section clusters (compliance, monetization, API contracts, hardware constraints) matched to the product's actual concerns. - Reviewer gate and audit trail: Parallel reviewer subagents write findings to review files, a memlog records every decision, and validation produces consolidated HTML and Markdown reports. - Use Case: A product manager pastes a product brief, answers a few discovery questions in coaching or fast-path mode, and receives a finalized PRD with numbered FRs, user journeys, success metrics, and an assumptions index. ## Quick Start Ask the assistant to help you create a PRD for your product idea and answer its discovery questions.