MSMP Enhanced

Evidence

Ran on Kiln's test stand (2026-11-04): MsmpEnhancedMod did not start: java.lang.NoClassDefFoundError: net/minecraft/server/jsonrpc/IncomingRpcMethod$RpcMethodFunction.

What it needs from Kiln

• Mixin
• net.minecraft.commands.CommandSource
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.locale.Language
• net.minecraft.network.chat.ComponentContents
• net.minecraft.network.chat.ComponentSerialization
• net.minecraft.network.chat.ComponentUtils
• net.minecraft.network.chat.contents.TranslatableContents
• net.minecraft.server.MinecraftServer
• net.minecraft.server.dedicated.DedicatedServer
• net.minecraft.server.jsonrpc.IncomingRpcMethod
• net.minecraft.server.jsonrpc.IncomingRpcMethod.IncomingRpcMethodBuilder
• net.minecraft.server.jsonrpc.IncomingRpcMethod.RpcMethodFunction
• net.minecraft.server.jsonrpc.api.Schema
• net.minecraft.server.jsonrpc.api.SchemaComponent
• net.minecraft.server.jsonrpc.internalapi.MinecraftApi
• net.minecraft.server.jsonrpc.methods.ClientInfo
• net.minecraft.server.permissions.LevelBasedPermissionSet
• net.minecraft.util.StrictJsonParser
• net.minecraft.world.level.storage.LevelData
• net.minecraft.world.level.storage.LevelData.RespawnData
• net.minecraft.world.phys.Vec2
• BuiltInRegistries.INCOMING_RPC_METHOD
• Component.getContents()
• Component.getSiblings()
• Component.getStyle()
• MutableComponent.create()
• MutableComponent.setStyle()
• Vec3.atLowerCornerOf()

On the roadmap: Code next to data (0.3), Mixin (0.5)

In the author's words

Extends the Minecraft Server Management Protocol (MSMP), including new JSON RPC methods and Unix socket support

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file msmp-enhanced-0.1.1+26.3.jar. The scan reads the mod's classes; it does not run them.