My suggestion would be more radical: if it's AI written, the code is increasingly irrelevant. What is relevant is the prompt or spec: https://news.ycombinator.com/item?id=47198562 'Show HN' should ban "code-only" submissions if not majority human-written, and allow only "prompt/doc/test only" 'Show HNs'.
I am interested in a vibecoded project which was a well thought out goal or an interesting methodology or a striking prompt engineering trick (eg. the Anthropic Rust C compiler targeting the Linux kernel); I'm not interested in a obvious idea where I'm supposed to be impressed by a huge pile of rotting-code-debt of unknown quality and likely a lot of bugs, which is going to be written by a LLM in a few months anyway.
> "Show me your flowchart and conceal your tables, and I shall continue to be mystified. Show me your tables, and I won't usually need your flowchart; it'll be obvious." ---Fred Brooks, _The Mythical Man Month_ (1975)