Command Custom

Evidence

Ran on Kiln's test stand (2026-11-04): CommandCustom did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/event/lifecycle/v1/ServerLifecycleEvents; CommandCustomClient did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/client/screen/v1/ScreenEvents.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents.ClientStopping
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents.AfterInit
• net.fabricmc.fabric.api.client.screen.v1.Screens
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarted
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopping
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.EditBox
• net.minecraft.client.gui.screens.TitleScreen
• net.minecraft.client.input.KeyEvent
• net.minecraft.client.input.MouseButtonEvent
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.server.MinecraftServer
• Minecraft.setScreenAndShow()
• GuiGraphicsExtractor.centeredText()
• GuiGraphicsExtractor.disableScissor()
• GuiGraphicsExtractor.enableScissor()
• GuiGraphicsExtractor.pose()
• Screen.extractRenderState()
• Screen.height
• Screen.keyPressed()
• Screen.mouseClicked()
• Screen.mouseScrolled()

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

In the author's words

Customize any Minecraft command to your own alias!

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file command-custom-1.4.0.jar. The scan reads the mod's classes; it does not run them.