What problem does it solve? Starting implementation on a vague idea leads to scope creep, missed requirements, and rework. This Skill guides a structured brainstorming workflow that turns fuzzy concepts into confirmed design documents before any code is written. ## Core Features & Use Cases - Phased Requirement Discovery: Progresses through intent exploration, scope boundary definition (in-scope vs out-of-scope), feature point breakdown, and risk assessment with explicit user confirmation at each stage. - Technical Feasibility Verification: Requires Spike validation with minimal test code for unused APIs or uncertain engine behaviors, recording conclusions in a technical constraints table. - Design Presentation & Documentation: Presents the design in 200-300 word sections for incremental confirmation, then commits the approved design to Docs/plans/<business-name>/ and hands off to implementation planning skills. - Use Case: Before adding a blueprint rotation feature to a NetEase MC mod, use this Skill to confirm scope, evaluate engine API risks, compare 2-3 implementation approaches, and produce a committed design document. ## Quick Start Ask the AI to brainstorm and design the new feature you have in mind before writing any code.