I'm actually not talking about whether the PR works or was tested. Let's just assume it was bug-free and worked as advertised. I would say that even in that situation, they should not accept the PR. The reason is that no one is the owner of that code. None of the maintainers will want to dedicate some of their volunteer time to owning your code/the AIs code, and the AI itself can't become the owner of the code in any meaningful way. (At least not without some very involved engineering work on building a harness, and since that's still a research-level project, it's clearly something which should be discussed at the project level, not just assumed).

> but I don't think anyone bothered to actually check the work

Including you

I’ve been finding that the documentation the AI writes isn’t so much for humans, but for the AI when it later goes to work on the code again…well, to say AI benefits from good PRs as much as people do. You could ask the AI to break up the PR next time if possible, it will probably do so much more easily than you could do it manually.