Simplify

⚠️ DO NOT install this in Claude Code. Claude Code ships its own native /simplify command, purpose-built for that harness — it fans the four lenses out to four real parallel review subagents and is tuned to Claude Code's tools. This skill is a portable clone for agents that lack it (Codex, Cursor, and other skills.sh targets). Installing it inside Claude Code would only shadow the better built-in. Use the native /simplify there instead.

Improve the quality of recently changed code — do not hunt for bugs. Review the diff through four cleanup lenses (Reuse, Simplification, Efficiency, Altitude), then fix what you find. Correctness bugs are out of scope here; a dedicated code-review pass handles those. Keeping the two separate is deliberate: bug-hunting and quality-cleanup pull attention in different directions, and mixing them makes both worse.

The guiding principle throughout: preserve behavior exactly. Every change must leave what the code does untouched — only how it does it improves. Prefer readable, explicit code over clever compression; "fewer lines" is not the goal, clarity is.