Gotcha gotcha. I think it’s the name of Guts and Guile that threw me off then, because it kind of frames them as more skills, or the mindset with which the players attempt an action, which kinda led me to wonder if “subtly poisoning NPCs against the System” should trigger an efficiency roll with guile without using guts, since it wasn’t a forceful action. I guess that would probably require both rolls then.
Anyways, thanks for the quick response, I’m running a oneshot of it in a few minutes haha.