What problem does it solve? Code changes often accumulate clutter: duplicated logic, dead code, needless indirection, and redundant work. This Skill performs a quality-only cleanup pass over a diff, improving clarity and economy without altering behavior, so reviews and merges stay focused on substance. ## Core Features & Use Cases - Behavior-preserving cleanup: Applies surgical edits across five lenses — reuse, simplification, efficiency, altitude (right level of abstraction), and naming — while guaranteeing no change to output, timing, or errors. - Scoped to the change: Works from git diff of uncommitted work or a branch diff, touching only code in the change unless told otherwise. - Parallel fan-out for large diffs: Splits multi-file changes across sub-agents with disjoint file sets, then reconciles so shared helpers are not extracted twice. - Use Case: As the cleanup stage of a ship pipeline, run it after implementing a fix to tidy the diff before code review and PR creation. ## Quick Start Ask the agent to simplify the current uncommitted changes or the diff on this branch without changing any behavior.