Datapack Codex

Item format/Attribute Modifiers

Minecraft Wiki article. Categories: Removed_features, Top-level_data_pages

📌 Mirrored from Minecraft Wiki

This article is reproduced from Item format/Attribute Modifiers on the Minecraft Wiki. Mirrored from revision 2543982. It is licensed CC BY-NC-SA 3.0 by the Minecraft Wiki contributors — not under the Codex’s CC BY-SA 4.0, and it may not be used commercially. Edits belong upstream, not here.

BlockSprite rose.png: Sprite image for rose in Minecraft
This page describes content that has been removed and was only present in earlier versions of Java Edition.
 
In Java Edition 1.20.5, this format has been replaced with the data component format.
    • [NBT List / JSON Array] AttributeModifiers: Contains Attribute Modifiers on this item which modify Attributes of the wearer or holder (if the item is not in the hand or armor slots, it has no effect).
      • [NBT Compound / JSON Object]: A single Attribute Modifier.
        • [String] AttributeName: The name of the Attribute this Modifier is to act upon.
        • [String] Name: The name of the Modifier. Has no known effect.
        • [String] Slot: Slot the item must be in for the modifier to take effect. Can be mainhand, offhand, feet, legs, chest, or head.
        • [Int] Operation: Modifier Operation. See Attribute Modifiers for info.
        • [Double] Amount: Amount of change from the modifier.
        • [Int Array] UUID: The modifier's UUID, stored as four ints. Used when equipping and unequipping the item to identify which modifier to add or remove from the entity.

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