The main thing to remember in a skills or tournament spar is not to inflict any killing or disabling blows, as that is only saved in the event that You are involved in a death spar. Also, be realistic in Your posts and keep the action flowing, otherwise, You will be deducted points if the spar is for a tournament.
The guidelines that the Yellow Knives uses, as well as a few examples.
The guidelines that Huraiva Falls Lair uses.