NoCapes

Evidence

Ran on Kiln's test stand (2026-11-04): NoCapesFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/network/chat/HoverEvent.

What it needs from Kiln

• an access widener
• Mixin
• net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback
• net.minecraft.client.gui.Hud
• 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.ChatComponent
• net.minecraft.client.gui.components.MultiLineTextWidget
• net.minecraft.client.gui.screens.ConfirmLinkScreen
• net.minecraft.commands.Commands
• net.minecraft.network.chat.ClickEvent
• net.minecraft.network.chat.ClickEvent.CopyToClipboard
• net.minecraft.network.chat.CommonComponents
• net.minecraft.network.chat.HoverEvent
• net.minecraft.network.chat.HoverEvent.ShowText
• net.minecraft.network.chat.Style
• org.apache.logging.log4j.LogManager
• org.apache.logging.log4j.Logger
• org.apache.logging.log4j.message.AbstractMessageFactory
• org.apache.logging.log4j.message.FormattedMessage
• org.apache.logging.log4j.message.SimpleMessage
• Minecraft.schedule()
• Gui.hud
• Component.copy()
• Component.getStyle()
• MutableComponent.withStyle()

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

Disables rendering of any/all Minecraft capes.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file nocapes-fabric-1.104.0+26.3.jar. The scan reads the mod's classes; it does not run them.