While generally inventory refers to the contents of any container, in Threshold, it most often refers to everything a player is carrying, wearing, wielding, or holding.
i or inventory i bags i <arg> or inventory <arg> ii or i carried or inventory carried
This command lists the items you are currently carrying. Your total weight includes the weight of coins you are carrying. You may also supply an argument to this command and it will only list items that have that argument as an identifier. If carried is the arg, it will list all items not wielded, equipped, or thrown.
The letter i has been globally aliased to inventory, so you need not type the word inventory in any of the above-explained circumstances.
ii has been globally aliased to inventory carried, making that easier also.