That would have to be spelled out for it, I think.Fallen Seraph said:Well I imagine a Angel would have a very strict view of its ideals. As such, a Warlock could be in for a world of hurt if he even remotely steps outside that, since unlike with a god an Angel you made a pact with be watching you very closely. It be like the old Paladin codes, except you would have a Angel on your ass.
And in such a way so that the DM exercising it doesn't come off as a rat bastard or a railroader.