seriously @walden_yan cooked, this thing legitimately saves my ass 3-8x a day, and yes it sounds weird that devin can catch devin's own mistakes, but this is basically the equivalent of "sleeping on it" and looking at a PR with fresh/more critical eyes. btw you should also see the "smart friend" pattern he piloted in Windsurf, it is going to be the design pattern for smarter subagents (usually subagents are dumber) that others are only just catching on to