In addition to what's already in the thread, I assume by now somebody has vibecoded an agent to scan GitHub for bounties and then automatically vibe up a corresponding solution. Will be a fun source of spam for anyone who wants to do the right thing and pay people for good work.
I recently got my first AI generated PR for a project I maintain and it was honestly a little stressful. My first clue was that PR description was absurdly detailed and well structured... yet the actual changes were really scattershot. A human with the experience and attention to detail to produce that detailed description would likely also have broken it down into seperate PRs. And the code seemed alright until I no…
People using AI tools in their work is becoming normal. In the end, it doesn't matter how the code is created if the code works and is otherwise high quality. The person contributing is responsible for checking the quality of their contributions. Generally, a pull request that changes half the system for no good reason without good motivation is clearly not acceptable in most OSS systems. Likewise, a pull request that ignores existing design and conventions is also not acceptable. If you do such a pull request manually, it will probably also get rejected and get told off by repository maintainers.
The beauty of the pull request system is that it puts the responsibility on the PR creator to make sure their pull request is good enough. Creating huge pull requests is generally not appreciated and creates a lot of review overhead. It's also good practice to work via the issue tracker and discuss your plans before you start the work. Especially with bigger changes. The problem here is not necessary AI but but people using AI to create low quality pull requests and people not communicating properly.
I've not yet received any obvious AI generated pull requests on any of my projects. But I've used codex on my own projects for a few pull requests. I'd probably disclose that fact if I was going to contribute something to somebody else's code base and would also take the time to properly clean up the pull request and make sure it delivers as promised.