Shulker Pocket

A Fabric mod for Minecraft 26.1.2 that turns an off-hand shulker box into a scrollable tool belt. Hold sneak and scroll the mouse wheel to rotate any of the shulker's 27 slots into your main hand, without opening a menu.

Overview

Carrying a full toolkit usually means juggling hotbar slots or stopping to open a container. Shulker Pocket makes a shulker box in the off-hand act as a pocket of 27 items you can cycle through while mining or building.

How It Works

Sneak and Scroll

With a shulker box equipped in the off-hand, hold sneak and scroll. Each scroll swaps the next or previous shulker slot into your main hand, so the tool you want is one flick away.

Server-Authoritative Design

The client only detects intent (sneak held, scroll direction) and sends a single packet. The server re-validates every gate, like whether a shulker is actually in the off-hand and whether the swap is allowed, and the server is the only side that mutates inventory. The client is never trusted to change items.

Client HUD

A lightweight client-side overlay shows the current selection, so you always know which slot is live without opening the box.

Stack

• Java 25
• Fabric mod loader
• Minecraft 26.1.2
• Gradle with the Fabric Loom plugin

Status

Complete and working against Minecraft 26.1.2.

Source

The source repository is private. Code is available on request. All Rights Reserved.