I was really surprised by this part!

I've run into the issue a lot; I know it happens. I handled it manually for a while by just having a fresh instance inspect the code - "review this for DRY violations" and "how would you re-write this into a global architecture instead of a bunch of local code".

Eventually the list ended up long enough that I've got an agent that handles it. You've just got to treat "write code that works" and "write elegant code" as two separate tasks - either a fresh instance or an Agent will work