palemantle says:
Olden's got Tinker as an ability. Does that entitle him to a free albeit RPed pass at the lock?
Not 'free', no. But it does two things. It means that he has a fictional justification for trying to open the lock (without it it might be unreasonable to even suggest trying such things (outside of 'hit lock with rock')), and the Rules Mechanics of Skills is that 'you can't fail' on their rolls, so you will be able to get the locks open, the question is only about what it costs you (time or noise or something, based on the fiction).
Given that I seldom use 'failure' and mostly tend to offer a 'success at a cost' in all games, the power of Skills in this game is a bit diminished, but you can at least be sure those rare 'complete failures' are not a thing you need to worry about when you are doing something you are Skilled at.
palemantle says:
... RPed pass at the lock?
(When I run something like FKR, we usually assume competence and that you succeed at what you describe your character doing, and we only roll for 'costs and complications'.)