I've found they do a decent job searching for bugs now as well. Just yesterday I had a bug report on a component/page I wasn't familiar with in our Angular app. I simply described the issue as well as I could to Claude and asked politely for help figuring out the cause. It found the exact issue correctly on the first try and came up with a few different suggestions for how to fix it. The solutions weren't quite what I needed but it still saved me a bunch of time just figuring out the error.