co-authored by Codex support

[toshimaru]

Summary

Add an option for Codex to append a GitHub-recognized co-author trailer to commits it helps produce, e.g.:

Co-authored-by: Codex (AI assistant) [[email protected]](mailto:[email protected])

Why

• Transparency & auditability: Many teams must disclose AI assistance for compliance/review.
• Attribution: Makes it clear in history which changes were AI-assisted.
• Consistency: Pair/mob programming already uses Co-authored-by trailers; AI should fit the same workflow.
• Parity: Anthropic’s Claude Code offers an “Include co-authored-by” setting; Codex should too.

Proposal

Introduce a configurable setting to include a co-author trailer when Codex:

• generates a commit message,
• applies staged changes through a “Commit” action,

Prior Art

• Claude Code: “Include co-authored-by” setting for commits and PRs.

see. Claude Code settings - Anthropic

Related

• Follow-up to (closed) [Feature request] Add (codex) to author in commit message and as "codex ${model}" as Co-author # Aider feature parity / convention #938

[Nonary]

Many teams must disclose AI assistance for compliance/review.

Lol, in this day and age not using AI at all is insanity. Literally assume any code written is AI influenced to some degree.

[Smirl]

This is common across other agents and would be great to see it added to codex. I don't see it as checking which commit is AI or not, but rather which AI so we can compare the usage of tools. Claude does this in a nice way which is linked to a github account. This gives nice visual feedback on pull requests.

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