Comment by rowanseymour

I think that's something that has changed in the last 6 months. It used to be standard practice to let Claude scan everything once and describe your repo in the CLAUDE.md - the logic being you don't want to do that every time for every prompt. But now I think the tooling has gotten so good at just grepping around your repos, and maintaining memory from previous sessions, that the best practice is only use CLAUDE.md for things that aren't obvious from the code.