Attribute Modify

The mod offers precise control over attribute operations (addition, multiply base, multiply total) applied per equipment slot — main hand, off hand, chest, legs, feet, head, and curios slots.

It integrates seamlessly with Curios API and supports JSON datapacks, empowering modders and pack makers to create balanced unique items easily without hardcoding.

AttributeModify permite personalizar atributos de ítems en Minecraft con gran flexibilidad. Soporta modificaciones de atributos como daño, armadura, suerte, velocidad de movimiento, y cualquier atributo de mods en ítems vanilla y moddeados, incluyendo integración con la API de Curios.

El mod ofrece control preciso de operaciones de atributos (adición, multiplicar base, multiplicar total) aplicados en ranuras específicas: mano principal, mano secundaria, pecho, piernas, pies, cabeza, y ranuras de curios.

Se integra completamente con la API Curios y permite personalización mediante datapacks JSON, facilitando a modders y creadores de packs crear ítems únicos equilibrados sin hardcodeo.

Standard Equipment Slots:

{
  "minecraft:diamond_sword": {
    "equipment_slots": {
      "mainhand": [
        {
          "action": "add",
          "attribute": "minecraft:generic.luck",
          "amount": 1.0,
          "operation": "addition",
          "name": "Diamond Luck"
        }
      ]
    }
  },
  "minecraft:netherite_chestplate": {
    "equipment_slots": {
      "chest": [
        {
          "action": "modify",
          "attribute": "minecraft:generic.armor",
          "amount": 2.0,
          "operation": "addition",
          "name": "Enhanced Armor"
        }
      ]
    }
  }
}

Multiple Attributes Per Item:

{
  "minecraft:diamond_sword": {
    "equipment_slots": {
      "mainhand": [
        {
          "action": "add",
          "attribute": "minecraft:generic.luck",
          "amount": 1.0,
          "operation": "addition",
          "name": "Sword Luck"
        },
        {
          "action": "add",
          "attribute": "minecraft:generic.attack_damage",
          "amount": 2.0,
          "operation": "addition",
          "name": "Bonus Damage"
        }
      ]
    }
  }
}

Curios Slot Modifications:

{
  "dungeons_and_combat:ernos_fang_necklace": {
    "curios_slots": {
      "necklace": [
        {
          "action": "add",
          "attribute": "minecraft:generic.luck",
          "amount": 2.0,
          "operation": "addition",
          "name": "Lucky Necklace"
        }
      ]
    }
  },
  "irons_spellbooks:blaze_spell_book": {
    "curios_slots": {
      "spellbook": [
        {
          "action": "remove",
          "attribute": "irons_spellbooks:max_mana"
        }
      ]
    }
  }
}

For Standard Items Create the folder structure: data/your_pack_name/item_attributes/

Create JSON files with your modifications

Define each modification with required fields:

action: "add", "modify", or "remove"

attribute: the attribute ID (e.g., "minecraft:generic.luck")

amount: the value to apply (not needed for "remove")

operation: "addition", "multiply_base", or "multiply_total"

name: display name for the modifier

Equipment slots: "mainhand", "offhand", "head", "chest", "legs", "feet"

For Curios Items Same folder structure as above

Use curios_slots instead of equipment_slots

Specify curios slot names like "necklace", "ring", "charm", "spellbook"

Curios API must be installed for this functionality

Attribute Operations addition: Adds the amount directly to the base value

multiply_base: Multiplies the base attribute by (1 + amount)

multiply_total: Multiplies the final value by (1 + amount)

Common Attributes minecraft:generic.attack_damage

minecraft:generic.armor

minecraft:generic.armor_toughness

minecraft:generic.luck

minecraft:generic.movement_speed

minecraft:generic.max_health

irons_spellbooks:max_mana (if Iron's Spellbooks installed)

Datapack Reload Use /reload command to apply changes without restarting

Works in both singleplayer and multiplayer

Changes apply immediately to equipped items

Removing Attributes:

{
  "some_mod:overpowered_item": {
    "equipment_slots": {
      "mainhand": [
        {
          "action": "remove",
          "attribute": "minecraft:generic.attack_damage"
        }
      ]
    }
  }
}

Percentage-based Modifications:

{
  "minecraft:netherite_boots": {
    "equipment_slots": {
      "feet": [
        {
          "action": "modify",
          "attribute": "minecraft:generic.movement_speed",
          "amount": 0.1,
          "operation": "multiply_base",
          "name": "Swift Boots"
        }
      ]
    }
  }
}