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Private Content

Definition

Private content is content that MUST NOT be accessed by packs other than the pack that defines it. (I.e. private content does not exist to any pack outside of it's defining pack.)

Content that is not private is public, and may be accessed by any pack.

The following are definitions of private content:

Resources/Files

Resources in the _ subdirectory (or any subdirectory therein) of any datapack registry (<datapack>/data/<pack ID>/<resource directory>/_/...). This includes tags (data/<pack ID>/tags/<resource directory>/_/...).

Scoreboard Objectives

Scoreboard objectives that start with _<pack ID>.

NBT Storage Data

Data in the <pack ID>:_ storage location or any sub-path of it (<pack ID>:_/**).

minecraft:custom_data Component Data

Data at path <pack ID>._ in the minecraft:custom_data component.

As of Minecraft version 1.21.11, this applies to items, blocks, and entities. Entities have their minecraft:custom_data at path data, as opposed to components."minecraft:custom_data".

Entity Tags

Entity tags that start with _<pack ID>.

Items

Items with _:true in their minecraft:custom_data component.

Pack that added the _:true data first is the defining pack.

Entities

Entities with the _ entity tag, excluding players.

Pack that added the _ tag first is the defining pack.

Mcdoc Structure

All structure defined by mcdoc files in the _ directory and all subdirectories (<datapack>/mcdoc/_/**).