There's a balance to be calculated each time you're presented with the option. It's difficult to predict how much iteration the agent is going to require, how frustrating it might end up being, all the while you lose grip on the code being your own and your head-model of it, vs just going in and doing it and knowing exactly what's going on and simply asking it questions if any unknowns arise. Sometimes it's easier to just not even make the decision, so you disregard firing up the agent in a blink.