Based on what? In fact, the commit messages sure make it seem like someone who only knows how to use git to to take snapshots, exactly like when one turns off their brain and vibe codes, and after chatting enough with the chatbot to get their next feature seemingly to work make some sort of "updated bla" commit with no reference to the extremely detailed code change they just made.

https://github.com/beginner-jhj/mini_browser/commits/main/

You seem to have gotten used to perfect written commit messages by Claude. Many people, especially those starting out with git, do write messages like that. That can actually be seen in this very repo by the refactor ones. And, the commits themselves are actually where I'm basing it. Small changes (vibe coders tend to forget a vcs exists; why you see 20k LOC first commits), commented-out code parts (have you ever seen AI commenting out code?), plain code comments (again compare to what refactor commits introduce).