Peer Review via Codex CLI

Independent code review using OpenAI Codex CLI as a second reviewer agent. Codex runs in read-only sandbox — it cannot modify any files.

Why a Second Reviewer

Different model families (Claude vs GPT) have different blind spots. A peer review from a separate agent catches issues that self-review misses, similar to how a human teammate provides a fresh perspective.

Prerequisites

Codex CLI must be installed and authenticated:

• codex --version should return a version
• Codex handles its own auth via codex login or config

If not available, inform the user and stop.

Arguments