Mson

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

Evidence

Ran on Kiln's test stand (2026-11-04): MsonMod did not start: java.lang.NoClassDefFoundError: net/minecraft/server/packs/resources/PreparableReloadListener.

What it needs from Kiln

an access widener
Mixin
com.mojang.blaze3d.vertex.PoseStack
com.mojang.blaze3d.vertex.PoseStack.Pose
com.mojang.blaze3d.vertex.VertexConsumer
net.fabricmc.fabric.api.resource.v1.ResourceLoader
net.minecraft.client.model.EntityModel
net.minecraft.client.model.Model
net.minecraft.client.model.geom.ModelLayerLocation
net.minecraft.client.model.geom.ModelPart
net.minecraft.client.model.geom.ModelPart.Cube
net.minecraft.client.model.geom.ModelPart.Polygon
net.minecraft.client.model.geom.ModelPart.Vertex
net.minecraft.client.model.geom.builders.LayerDefinition
net.minecraft.client.model.geom.builders.MeshDefinition
net.minecraft.client.model.player.PlayerModel
net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider
net.minecraft.client.renderer.blockentity.BlockEntityRendererProvider.Context
net.minecraft.client.renderer.entity.EntityRendererProvider
net.minecraft.client.renderer.entity.EntityRendererProvider.Context
net.minecraft.client.renderer.entity.player.AvatarRenderer
net.minecraft.client.resources.model.ModelManager
net.minecraft.core.Direction.Axis
net.minecraft.server.packs.PackType
net.minecraft.server.packs.resources.PreparableReloadListener
net.minecraft.server.packs.resources.PreparableReloadListener.PreparationBarrier
net.minecraft.server.packs.resources.PreparableReloadListener.SharedState
net.minecraft.server.packs.resources.Resource
net.minecraft.server.packs.resources.ResourceManager
net.minecraft.server.packs.resources.ResourceManager.Selector
net.minecraft.util.GsonHelper
net.minecraft.util.Mth
net.minecraft.util.Unit
net.minecraft.util.Util
net.minecraft.util.profiling.Profiler
net.minecraft.util.profiling.ProfilerFiller
org.apache.logging.log4j.LogManager
org.apache.logging.log4j.Logger
JsonArray.forEach()
FabricLoader.getEntrypoints()
FabricLoader.isModLoaded()
Minecraft.getEntityModels()
and 12 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

Jsonized Entity and Block-Entity model support

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file mson-1.14.1+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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