I would say I'm using it for about half of the "10%" and and a quarter of the "90%".

> I can't imagine that slopping it up would be a great decision. Having alien code that no one ever understood between a bug report and a solution. Anthropic isn't going to give us money for our lost contracts, is it?

Absolutely, that's a real concern. The only time I will let it loose on something is a throwaway project to test something, or a small tool that I know I can write deterministic tests for.

On codebases of any significant size, I'm using it more like a custom domain Stackoverflow search engine.