What problem does it solve? It prevents scope creep by converting an approved strategy into a formal scope agreement with explicit in-scope and out-of-scope lists before any task decomposition begins. ## Core Features & Use Cases - Scope Definition: Creates a plan document with scope statement, in-scope items, out-of-scope items with exclusion reasons, and effort estimates using the plan.md template. - RC Traceability: Enforces a traceability table mapping formal requirements (RC) to tasks when the plan derives from analysis work. - Human Gate Enforcement: Blocks progression to Phase 7 until the user explicitly approves the scope, updating ROADMAP.md and session state accordingly. - Use Case: After approving a solution strategy for a work package, run this Skill to produce a plan document that stakeholders review and approve before design begins. ## Quick Start Ask the assistant to start Phase 6 scope definition for the active work package and produce the plan document for approval.