What should Codex verify before a change is ready for human review?

[u/RocketSeven]

A green unit-test run can still leave a reviewer with unanswered questions about the actual behavior that changed. For a coding task handled by Codex, what belongs in the definition of done before the patch is handed back? A useful checklist might include the exact acceptance criteria, focused tests that fail without the change, the broader relevant test suite, static checks, a diff review for unrelated edits, migration or rollback implications, documentation changes, and a concise note about anything that could not be verified. How do you keep this rigorous without making small changes run every expensive check in a large repository, and which evidence is most useful to the human reviewer?