Mixed
It produces wrong code, fails to find the right places where to hook up an abstraction, overlooks affects on other parts of the code, and generally confidently proposes changes that simply do not work at all
linuxhansl on Hacker News
In the thread “6 weeks of Claude Code”
Helped: Writing tests and UI code where many examples exist.
Got in the way: Producing wrong code and overlooking effects in database optimizers.
… Among other things I work on database optimizers and there Claude fails spectacularly. It produces wrong code, fails to find the right places where to hook up an abstraction, overlooks affects on other parts of the code, and generally confidently proposes changes that simply do not work at all (to put it mildly). Your mileage may vary... …