Is holding
Whether a player holds an item of a type in their main hand.
A Minecraft element (a check) in Items & inventories. Needs the Basic plan or higher to go live; building and testing are free.
Example
When a player right-clicks → If Is holding minecraft:compass → Open a menu: Warps.
Also called
holding, in hand, has in hand, wielding
Works as a data pack?
Yes. A vanilla data pack does this exactly as the plugin does.
What you give it
- Player