Datapack Integration

You can integrate ItemCaster abilities directly into Minecraft Datapacks, allowing you to assign skills and activators to items via loot tables using custom NBT data.

This method is useful for distributing pre-configured items through loot chests, commands, or other loot-related mechanics.

How It Works

ItemCaster reads a special NBT tag on items called ItemCaster. This tag must contain a JSON array of ability data, each with a valid skill and activator.

To use this in a datapack, use the minecraft:set_custom_data function inside a loot table, like the example below.

Example Loot Table Entry

{
  "pools": [
    {
      "rolls": 1,
      "entries": [
        {
          "type": "minecraft:item",
          "name": "minecraft:diamond_sword",
          "functions": [
            {
              "function": "minecraft:set_custom_data",
              "tag": {
                "ItemCaster": {
                  "abilities": [
                    {
                      "skill": "SummonSkeleton",
                      "activator": "LEFT_CLICK"
                    }
                  ]
                }
              }
            }
          ]
        }
      ]
    }
  ]
}

For full structure nbt type you can see it in here

Helpful Tools

To help you create datapack loot tables easily, you can use the following tool: Misode Loot Table Generator

How to get

Install the datapack in bellow and execute this command.

/loot give @s loot itemcaster:example_item

Download Full Example

To get started quickly, you can download the full example datapack below:

Download