ItemContainer

ItemContainer is a lightweight Paper 1.21 plugin that prevents specific items from being placed into certain containers.

Define rules in config.yml – for example, stop players from putting Dragon Eggs into Ender Chests, or prevent Shulker Box nesting.

Features

• Config‑driven – add or remove restrictions without touching code
• Shift‑click, drag, number‑key & normal clicks – all transfer methods are blocked
• Custom messages – per‑rule cancel message shown to the player
• Reload command – /itemcontainer reload applies changes instantly (OP only)
• Lightweight – zero overhead when no rules match

Example Config

rules:
  DRAGON_EGG:
    containers:
      - ENDER_CHEST
    message: "§cYou cannot place a Dragon Egg inside an Ender Chest!"

  SHULKER_BOX:
    containers:
      - SHULKER_BOX
    message: "§cShulker boxes cannot be nested!"

Commands

Command	Permission	Description
/itemcontainer reload	itemcontainer.reload	Reloads the config file

Requirements

• Paper 1.21 (or fork)
• Java 21