I don’t use any of these sorts of tools, so sorry for the naive questions…

What sort of thing does it find? Bad smells (possibly known imperfections but least-bad-picks), bugs (maybe triaged), or violations of the coding guides (maybe known and waivered)?

I wonder if there’s a need for something like a RAG of known issues…

GPT 5+ high+ review bots find consistently good issues on average for me, sometimes they’re bogus, but sometimes they’re really, really good finds. I was impressed more than once.