There is a lot more Claude Code can do for you that an AI chat bot can't because it a) has tool access b) has access to your source code.

- Root cause and fix failures.

- Run any code "what if scenario".

- Performance optimizations.

- Refactor.

There's no reason why you shouldn't (and you should) read all the code and understand it after Claude does any work for you but the experience vs. the "old" SO model of looking for some technical detail is very different.