You get one wish. If I particularly like your wish, I can give you a freebie.

Absolutely no 'meta' wishes. No wishes that in any way pertain to wishes, the nature of wishing, or the capacity of beings to grant them.

Personal questions aren't wishes, cosmic questions are wishes; but I will warn you before answering if the question counts as the latter.

I am not a robot nor a lawyer. I am a timeless magical being doing you a favor. Wish because you want something, not because it will make you 'win'. Your wishes are exponentially more likely to work out well if you treat me like a friend rather than a vending machine you just need to find the perfect input for.

The consequences of my wishes may be beyond my capacity to stop or reverse. If I have to call on the beings who can reverse them, life will quickly become much less sane.