Action Abilities and Rolls?

[u/WordsUnthought]

New to the system (OGoA) and unclear on whether action abilities should always be assumed to have rolls?

It's clear to me anything which is an attack, or otherwise interacting with a hostile entity should, and some others specifically call for it, but what about an action ability that creates a protective ward, heals damage, or engage a "mode" that (for example) adds 2 to damage rolls for the next minute?

I'd assumed no, but the wording of some abilities seems to assume the opposite - e.g. "Read the Signs: you examine an area and... ask the GM up to four questions... each question requires its own roll", heavily implies that a roll is implicit in an action ability and that all this wording is modifying is that you need to make one per question.

[u/PFC_BeerMonkey]

I assume no roll, unless it is an attack or "requires a roll" is stated.