What problem does it solve? Jumping straight into code on complex, multi-file tasks often leads to misalignment, scope creep, and expensive rework. This Skill enforces a design-first workflow that produces a reviewed, testable implementation plan before any code is written. ## Core Features & Use Cases - Phased planning protocol: Runs five gated phases (pre-flight, problem & scope, implementation design, risk & verification, plan production) with explicit abort and recovery rules at each gate. - Structured PLAN.md output: Produces a standardized plan artifact with success criteria, scope boundaries, phased changes, dependency mapping, a risk register, and an executable verification plan. - Full and Fast modes: Defaults to a thorough Full mode, with an opt-in Fast mode for single-unit changes that condenses phases while never skipping gates or the user alignment checkpoint. - Use Case: Before refactoring authentication across multiple services, run the planning protocol to get a PLAN.md with testable success criteria, a HIGH-risk mitigation table, and per-phase verification commands your team can approve and execute. ## Quick Start Ask the agent to run /plan-create and make a phased plan for your task before writing any code.