My glib assumption is you do that, you spend a bunch of tokens, and you end up with the same sort of mess you had the first time around.

The sort of "eternal addition" glomming of code that leads to tears on older codebases... I don't really see why agentic development avoids this. And I think there are arguments that it _accelerates_ it (but I'm pretty open to nuance on that side of the fence)