What problem does it solve? Teams with a new AI app idea often face blank-page paralysis and ship confused demos because they skip product specification. This Skill turns a rough idea into two concrete planning documents — a PRD and a UX guideline — before any code is written. ## Core Features & Use Cases - Guided brainstorm: Asks 2-3 adaptive clarifying questions (via multi-choice prompts) about input/output shape, roles, reversibility, constraints, and tech stack, matching the user's language. - Pattern selection: Picks exactly one of 7 UI patterns (chat+panel, upload→dashboard, query→result, wizard, draft→approve, queue, streaming) using explicit priority rules, with a one-line justification. - Document generation: Writes PRD.md (problem, users, stories, data model, tech stack recorded verbatim, constraints, API surface, success criteria) and GUIDELINE.md (chosen pattern, visual style, user flows, T·C·R checklist, hinge rule) to the repo root. - Use Case: A student team says "help me spec my AI tutor app idea" — the skill clarifies roles and trust signals, selects the Chat + context panel pattern, and produces both files ready for a baseline build. ## Quick Start Describe your app idea in one paragraph and ask the assistant to turn it into a PRD and UI guideline using this skill.