We raised $3M for agent-native runners

Write the review questions you keep repeating into AGENTS.md

Scoped repository rules let an agent reviewer catch what a reader of the diff would miss.

How OpenAI used this technique

Read what OpenAI changed and follow the original sources.

Write the review questions you keep repeating into AGENTS.md

OpenAI's Codex Code Review applies short, scoped rules from AGENTS.md and cites the rule in a finding. The team puts repository-wide rules at the root and service-specific rules in the nested AGENTS.md of that directory, states the invariant together with the safe path, and keeps formatting and other mechanical checks in CI.

In OpenAI's primary evaluation suite of known rule violations and safe counterexamples, rule-guided variants recovered 98% of the required custom findings, compared with 58.3% in the baseline control Source

Use it when
Reviewers keep explaining the same compatibility requirement or data boundary on pull requests.
Before applying it
Start with two or three rules, then try one change that should trigger each, one safe counterexample and one unrelated change. Narrow or remove a rule that repeatedly produces noise.

Company Playbooks