Cosmetica

Calls something that is on Kiln's roadmap. Parts of it may already run.

Evidence

Ran on Kiln's test stand (2026-11-04): it stopped at cc.cosmetica.com.fasterxml.jackson.databind.json.JsonMapper, a class from a jar nested inside the mod; Kiln does not unpack nested jars yet.

What it needs from Kiln

Mixin
com.mojang.authlib.GameProfile
com.mojang.blaze3d.Blaze3D
com.mojang.blaze3d.platform.InputConstants.Key
com.mojang.blaze3d.platform.Window
net.fabricmc.loader.api.ModContainer
net.fabricmc.loader.api.Version
net.fabricmc.loader.api.metadata.ModMetadata
net.minecraft.client.KeyboardHandler
net.minecraft.client.OptionInstance
net.minecraft.client.Options
net.minecraft.client.User
net.minecraft.client.gui.components.AbstractSliderButton
net.minecraft.client.gui.components.AbstractWidget
net.minecraft.client.gui.components.toasts.Toast
net.minecraft.client.gui.components.toasts.Toast.Visibility
net.minecraft.client.gui.components.toasts.ToastManager
net.minecraft.client.gui.screens.options.SkinCustomizationScreen
net.minecraft.client.input.KeyEvent
net.minecraft.client.input.MouseButtonEvent
net.minecraft.client.input.MouseButtonInfo
net.minecraft.client.player.AbstractClientPlayer
net.minecraft.client.player.RemotePlayer
net.minecraft.client.resources.language.I18n
net.minecraft.client.resources.language.LanguageManager
net.minecraft.client.resources.model.EquipmentClientInfo
net.minecraft.client.resources.model.EquipmentClientInfo.Layer
net.minecraft.client.resources.model.EquipmentClientInfo.LayerType
net.minecraft.client.resources.sounds.SimpleSoundInstance
net.minecraft.client.sounds.SoundEngine
net.minecraft.client.sounds.SoundEngine.PlayResult
net.minecraft.client.sounds.SoundManager
net.minecraft.util.Mth
net.minecraft.util.profiling.Profiler
net.minecraft.util.profiling.ProfilerFiller
net.minecraft.world.entity.EquipmentSlot
net.minecraft.world.entity.projectile.ProjectileUtil
net.minecraft.world.phys.AABB
net.minecraft.world.phys.EntityHitResult
org.apache.commons.lang3.tuple.MutableTriple
org.apache.commons.lang3.tuple.Triple
and 32 more

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

Free custom capes and cosmetics for Minecraft

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file cosmetica-fabric-2.0.2-26.3.jar. The scan reads the mod's classes; it does not run them.

Reports from players

No reports from players yet.

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