This addon fills the trade-window with full stacks of water or food (or every other consumable), depending of the class of your trading partner. When conjured drink, food or healthstones are missing, a cast-button is added right to the trade-window. WD checks the level of your trade partner, so it will only get useable water/food/healthstone.
WD has predefined settings for water/food/healthstones, but you can change how many stacks each class will get in the options (type /wd config) or add new items for auto trade. The amount can be different for solo/strangers, group-members and raid-members. When you want to add new items, you need at least one item in the inventory before you open the configuration.
WD should support any classic client, but the texts are only in English and German available. When you want to help to extend the list, please translate the terms in the Localization-Tab here.