More than anything, it depends on the developer using it. In my experience, most are just slop shovelers that don’t read or review what Claude does. Then it falls on the PR reviewer (me) to be an asshole: Did you review your own code? Do you understand what this part over here does? Why did you choose this method versus alternatives?

Unless you tell Claude/Opus otherwise, it’s not going to take the initiative to refactor things, tidy up parts it didn’t touch, or hell, it won’t even spellcheck things. Can you really call it a language model if it outputs misspelled words? Its unit tests are great boilerplate but never comprehensive enough for me.

Claude is the developer that puts zero pride or effort in their work beyond the bare minimum to not get fired.