What problem does it solve? Turning a feature analysis into an actionable implementation plan is error-prone: commits often get sliced horizontally (types, then logic, then tests), leaving each commit undeployable and untestable on its own. This Skill produces a structured, commit-level plan where every commit is independently deployable and carries an explicit test strategy. ## Core Features & Use Cases - Vertical Commit Slicing: Decomposes work into commits that each include types, logic, and tests, ordered Setup → Core → Integration → Polish. - Test Classification: Assigns each commit a test requirement (TDD, TEST-AFTER, NO-TEST) and test level (UNIT, INT, COMP, E2E) with justification rules for expensive E2E tests. - Analysis Integration: Reads the selected approach from a prior analysis.md when available, or interprets direct user input as requirements. - Use Case: After analyzing a refactoring task, run the plan step to produce a Korean-language plan.md with a checklist per commit, verification methods, and a principle-violation justification table. ## Quick Start Run /workflow-plan REFACTORING limit to 3 commits to generate a vertically sliced implementation plan at docs/work/REFACTORING/plan.md.