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Codex Code Review Custom Repository Rules | OpenAI | Chasing Next

OpenAIfeature

July 21, 2026·Source

Codex Code Review Custom Repository Rules

Codex's automated code review can now follow custom rules you write in an AGENTS.md file so it catches issues specific to your codebase.

Details

You add repository-specific review checks to an AGENTS.md file and Codex applies them during automated review
Meant for concise, scoped rules so Codex can catch repository-specific issues even when the relevant context is siloed

Best for

teams whose reviewers keep flagging the same repo-specific issues by hand

When to use it

a check your human reviewers repeat on every pull request that Codex does not yet know about

Who benefits

engineering teams using Codex Code Review

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