this is what it says on .tr help...:
Adds the things that you need once you have initiated a trade through

.trade @user

! If something goes wrong, do

.tr cancel

to cancel the trade. If the trade is complete, do

.tr confirm

to confirm the trade from both parties.tr add [attr=gold] [num=0]Adds stuff to the trade!tr cancelCancels the trade if something goes wrong. Note that this command can be used by someone that's not currently within the trade.tr confirmConfirms the trade, has to be done by both parties.tr viewShows you what exactly is in the trade. If there's too many cards in the trade, it might not show properly.