Couldn’t you just pretend the kill decisions are for a video game?

I mean you get a random game in the authors example :) But in real life you do not want a random game. That's what I mean, you need the great scaffolding + exact requirements. Then the prompt to do the implementation does not matter too much.

I think this misses something. The output here is something not the thing. Yes the scaffolding is important, but the requirements are even more important. You need crystal clear requirements + great scaffolding and then the implementation becomes mechanical.