Item Blocker

Evidence

Ran on Kiln's test stand (2026-11-04): it stopped at blue.endless.jankson.Jankson, a class from a jar nested inside the mod; Kiln does not unpack nested jars yet.

What it needs from Kiln

• an access widener
• Mixin
• com.mojang.blaze3d.platform.cursor.CursorType
• com.mojang.blaze3d.platform.cursor.CursorTypes
• net.fabricmc.api.DedicatedServerModInitializer
• net.fabricmc.loader.api.ModContainer
• net.fabricmc.loader.api.Version
• net.fabricmc.loader.api.metadata.ModMetadata
• net.minecraft.SharedConstants
• net.minecraft.client.KeyboardHandler
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.CreateNarration
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.CycleButton
• net.minecraft.client.gui.components.CycleButton.Builder
• net.minecraft.client.gui.components.CycleButton.OnValueChange
• net.minecraft.client.gui.components.EditBox
• net.minecraft.client.gui.components.toasts.SystemToast
• net.minecraft.client.gui.components.toasts.SystemToast.SystemToastId
• net.minecraft.client.gui.screens.inventory.AnvilScreen
• net.minecraft.client.gui.screens.inventory.ContainerScreen
• net.minecraft.client.gui.screens.inventory.CraftingScreen
• net.minecraft.client.gui.screens.inventory.HopperScreen
• net.minecraft.client.gui.screens.inventory.tooltip.ClientTooltipComponent
• net.minecraft.client.gui.screens.inventory.tooltip.DefaultTooltipPositioner
• net.minecraft.client.gui.screens.worldselection.DataPackReloadCookie
• net.minecraft.client.gui.screens.worldselection.WorldCreationContext
• net.minecraft.client.gui.screens.worldselection.WorldCreationContextMapper
• net.minecraft.client.input.KeyEvent
• net.minecraft.client.input.MouseButtonEvent
• net.minecraft.client.multiplayer.MultiPlayerGameMode
• net.minecraft.client.renderer.RenderPipelines
• net.minecraft.client.resources.sounds.SimpleSoundInstance
• net.minecraft.client.sounds.SoundEngine
• net.minecraft.client.sounds.SoundEngine.PlayResult
• net.minecraft.client.sounds.SoundManager
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.core.HolderSet
• net.minecraft.core.HolderSet.Named
• net.minecraft.core.NonNullList
• and 67 more

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

A client side mod that allows you to stop picking up items you don't want.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file itemblocker-1.6.1+26.3.jar. The scan reads the mod's classes; it does not run them.