ShulkerBoxUtils

Evidence

Ran on Kiln's test stand (2026-11-04): ShulkerBoxUtilsClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/gui/screens/inventory/tooltip/ClientTooltipComponent.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Disconnect
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Join
• net.fabricmc.fabric.api.client.rendering.v1.ClientTooltipComponentCallback
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents.AfterInit
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents.AfterTick
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents.Remove
• net.fabricmc.fabric.api.event.player.UseBlockCallback
• net.minecraft.client.gui.screens.inventory.ShulkerBoxScreen
• net.minecraft.client.gui.screens.inventory.tooltip.ClientTooltipComponent
• net.minecraft.client.renderer.RenderPipelines
• net.minecraft.core.NonNullList
• net.minecraft.world.inventory.ShulkerBoxMenu
• net.minecraft.world.inventory.Slot
• net.minecraft.world.inventory.tooltip.TooltipComponent
• net.minecraft.world.level.block.entity.ShulkerBoxBlockEntity
• Minecraft.setScreenAndShow()
• GuiGraphicsExtractor.blit()
• GuiGraphicsExtractor.item()
• GuiGraphicsExtractor.itemDecorations()
• ItemStack.isSameItem()
• Level.getBlockEntity()

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

Shulker Box Utils mod with floating item icon on placed boxes, view content in inventory and fill indicator bar.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file shulkerboxutils-1.4.1.jar. The scan reads the mod's classes; it does not run them.