No, we still need CLAUDE.md to override bad system prompt goals. The system prompt goes for the simple fast solution, no error handling, no hardening, no abstractions, but overly verbose comments. Vast amount of people need to override this AI slop.
i use it primarily to enforce my personal conventions that are not super commonly followed in the wild. structure of comments at the top of .h , structure of bibliography in .tex, etc etc things that i would otherwise have to repeat periodically.
