Ender Chest Restrictor

Ender Chest Restrictor is a small Fabric mod that prevents configurable items from being stored in Ender Chests.

The restriction applies recursively, meaning an item is also blocked if it is contained inside a Shulker Box, Bundle, or any combination of nested containers.

Blocked items are not banned. They can still be used, carried, dropped, and stored normally in regular inventories and containers, they simply cannot be placed into an Ender Chest.

Features

• Configurable list of restricted items
• Recursive detection of items inside Shulker Boxes and Bundles
• Supports nested containers and combinations of containers
• Affects Ender Chests only
• Server-side enforcement
• Lightweight implementation using targeted inventory and Bundle interaction mixins
• Compatible with vanilla and modded items

Configuration

After the first launch, a configuration file is generated at:

config/enderchestrestrictor.json

Example:

{
  "blockedItems": [
    "minecraft:dragon_egg",
    "minecraft:nether_star"
  ]
}

Add any valid item ID, including items from mods.

Configuration changes require a server restart.

How It Works

Ender Chest slots reject restricted items through the server-side slot validation logic. Bundle-specific interactions are handled separately to prevent restricted items from entering a Bundle during an Ender Chest interaction.

When an item is checked, its own type and the contents of supported container components are inspected recursively.