Tag-based scripting is a paradigm for supporting custom items that does not require editing module event scripts for each item. When this system is enabled, the relevant module events execute a script whose name is the item's tag, allowing an item and its script to be cleanly added to or removed from a module with almost no more risk of interference with other items than is normal for adding or removing an item alone. (The risk is reduced to a name conflict, as would occur if adding an item with a ResRef that is already in use.)