Item Information
Use /item info item:<item> when you know the item but not what to do with it. The command requires an RPG profile and shows the item's type, price when relevant, whether it can be bought, its description and how many you currently own.
For reward boxes or similar containers, the information panel can also list the possible rewards, their amounts and their chances. Active buff items show their effect information as well.
This makes /item info useful before two irreversible actions: buying a large quantity and bulk-using an item. A material may be more valuable as a Workshop ingredient, while a prepared tool may only make sense immediately before the activity it modifies.
Use the item option Discord provides instead of guessing a name. If an item does not support manual use, the information panel is still where you can see its intended role.