Review and Simplify Changes Review changed code for reuse, quality, efficiency, and clarity issues. Use Codex sub-agents to review in parallel, but keep those sub-agents read-only: they should only inspect code and send findings back to the main agent. Only the main agent may apply high-confidence, behavior-preserving fixes. Modes Choose the mode from the user's request: - : user asks to review, audit, or check the changes - : user asks to simplify, clean up, or refactor the changes - : same as , but also run the smallest relevant validation after edits If the user does not specify, default t…