What problem does it solve? Refactoring code across a large codebase is risky: hidden dependencies break, tests are skipped, and changes are hard to roll back. This Skill turns refactoring into a deterministic, verified pipeline that maps impact, checks test coverage, and validates every change before moving on. ## Core Features & Use Cases - Codebase Impact Analysis: Spawns parallel explore agents to find all usages, dependents, similar patterns, and tests for the refactoring target, then builds a codemap with risk-zoned impact areas. - Coverage-Gated Execution: Assesses test coverage before starting and blocks aggressive refactoring when coverage is missing, refusing to proceed without a safety net. - Verified Step-by-Step Execution: Delegates planning to the prometheus agent, applies changes with ast-grep structural tools, and runs typecheck, tests, lint, and build after each step with evidence logging. - Use Case: Ask to extract validation logic from an auth handler into a separate module; the Skill maps every consumer, plans atomic steps, applies each change, and reverts automatically if any verification fails. ## Quick Start Ask the assistant to refactor a specific file, class, or pattern, for example: refactor the AuthService class to extract validation logic into a separate module with safe strategy.
