I don't agree here. Yes Claude is great at following patterns, and for very standard tasks (e.g. "add this HTTP handler" which can copy existing patterns for database transaction management, session management, authentication, etc etc) it does great! The problem is that when you do something that doesn't quite fit int an existing pattern, Claude will optimize for solving the task at hand, producing code that doesn't use a sensible architecture. Doing things like checking user credentials or establishing a database connection deep in domain logic.

If you're a good dev, you can totally prompt Claude to not do this and correct itself, that's not an issue. The issue is that bad devs won't even notice this is happening in the first place.