Cross-Model Code Review with Codex CLI Cross-model validation using the binary directly. Claude writes code, Codex reviews it. Different architecture, different training distribution, no self-approval bias. Core insight: Single-model self-review is systematically biased. Cross-model review catches different bug classes because the reviewer has fundamentally different blind spots than the author. How to read this skill: the patterns and decision trees below are guidelines. Pick what fits, blend when needed. The rules marked ⚠️ are different: they're real CLI behaviors, not procedural ceremony.…