I would probably limit it to within line of unaided sight -- so you can't cheese it by pulling out a telescope or anything, but in general you can sort of shadow-jump around to different parts of a scene.

I would probably let you shadow step to the other side of a doorway as well.

Sanderis in particular is a bit of an odd duck, because it's designed specifically to be sort of undefined. Your dievas CAN do just about anything, so it becomes a question of what they'll let you do and what it'll cost you.