@misadventure Oh the latter, just prompts. I don't know, like maybe the flight attendant armed with a sonic toothbrush comes up with some really great idea. That person knows their character's strengths and if they can use them in a way I can't think of for myself then right on. If they can pull off the rolls they gotta pull off, equally right on. If the rolls go bad, I proceed with making their character's day that much more complicated. I might raise an eyebrow when the non-combat glass jaw shows up at a scene that I think looks like heavy combat, but if they can find a reason to be there and a way to contribute, great.
Now what I do get irritated at is when Captain McGlass Jaw gets mad at me for not coming up with some specific way for Captain McGlass Jaw to shine. Like...dude that's your job, I'm over here being the rain and the engines and the guy with the gun, you tell me how you Awesome.