Shulker Pocket

A Fabric mod that turns an off-hand shulker box into a live, scrollable tool belt. Sneak + scroll cycles items between the shulker and your main hand, with no inventory screen and no hotbar juggling.

• MC 26.1.2 · Fabric Loader 0.19.2 · Fabric API 0.149.1+26.1.2 · Java 25 · Loom net.fabricmc.fabric-loom 1.16-SNAPSHOT
• Mod ID shulker_pocket · required on both client and server (inventory mutation is server-authoritative)

How it works

1. Put any shulker box (or other minecraft:container item) in your off-hand.
2. Hold sneak (or a key you bind under Options → Controls → Inventory) and scroll the mouse wheel.
3. The held item rotates through the shulker's contents; scroll past the end to reach bare hands.

There's no custom overlay. Vanilla already shows the held item's name above the hotbar as it changes, and you know what's in your box.

Config

Install Mod Menu (optional) to edit everything in-game: its Config button on the Shulker Pocket row opens a settings screen. Otherwise, edit config/shulker_pocket.json (written on first launch) by hand.

Key Default Meaning invertScroll false Flip scroll direction. cooldownMs 250 Min ms between scroll fires (debounce). allowEmptyPosition true Let the cursor land on "bare hands". playSounds true Play subtle swap / deny sounds. useActivationKey false Activate with a bindable key instead of sneak. showTooltipHint true Show a usage hint on shulker-box tooltips.

See SPEC.md for the full design, edge cases, and the // VERIFY: checklist.