Global Blackboard represents the global scope and is shared across scenes. It is intended for truly global state, such as player-wide settings, save-level variables, cross-level unlock flags, or references to global services.

Unlike Local Blackboard or Scene Blackboard, Global Blackboard is not a component. It is a Scriptable Object asset, which means its lifecycle is independent of scene objects. When enabled, it registers itself with the Global Blackboard Registry.

Because it has the widest sharing scope, it also carries the highest risk of unnecessary coupling. For that reason, it should be reserved only for data that is genuinely global, rather than being used as a convenient place to store local or scene-specific state.