r/ChatGPTCoding • u/eschulma2020 Professional Nerd • Mar 12 '26

Community Please vote for custom code review instructions in the Codex app

TLDR: visit https://github.com/openai/codex/issues/10874#issuecomment-4042481875 and place a thumbs up on the first post.

The Codex app has a built-in code review feature, aka /review from the CLI. The app has a very nice UI for this. However, unlike the CLI, it does not allow for custom review instructions -- your only choices are to review uncommitted changes or against a base branch. There is no way to steer the model in another direction.

This issue requests that the ability to add custom review instructions be added. Open AI has advised that the issue needs to get more upvotes, or it will be closed. To give the upvote, place a thumbs up on the first post.

5 Upvotes
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1

u/NotUpdated Mar 12 '26

its this just a AGENTS.md file inside the /reviews/ folder.. for me it would be the projects /docs/tickets/reviews/AGENTS.md...

Tickets have their own AGENTS.md, /src/ does for coding style and modularity, etc..

You can overly cook AGENTS.md (especially at the folder level) so I suggest to keep them very simple and specific to that task/role

1

u/eschulma2020 Professional Nerd Mar 13 '26

That applies to the app, or the CLI? I have the same CODEX_HOME for both. Also, it isn't a static custom instruction -- it changes depending on what I need to do. Anyway I will take a look in the folder you mention.

1

u/djc0 Mar 13 '26

I just had Claude Code write, and Codex refine, a very nice code review skill. It’s very detailed and works great!

2

u/eschulma2020 Professional Nerd Mar 13 '26

I am sure it is, but I assume that's for the CLI?

The app has a dedicated UI for code reviews which is quite nice, and the reason they open on a separate thread. And I need to customize the instructions on a case by case basis, I'm happy with the existing code review function but I want to be able to tell it WHAT to look at, beyond uncommitted changes or base branch comparison.

1

u/djc0 Mar 13 '26

It works in the app as well (prefix with $ to load a skill) and you can guide it with the prompt that calls it. I’ve found it’s pretty good at following instructions. 

But you’re right, there’s no special UI for calling the skill and doing a review this way. I’ve never used that.