Custom Code Review rules for Codex | OpenAI Developers

Introduces custom repository rules within `AGENTS.md` for Codex Code Review. These rules allow teams to encode project-specific constraints, such as preserving API contracts or preventing sensitive data in logs, which are difficult to capture with deterministic tests. The post details how these rules improve code review efficiency and accuracy by providing context to coding agents and human reviewers, citing a 98% recovery rate for custom findings in internal evaluations. It also provides guidance on writing effective, scoped, and actionable rules.