Topper

Evidence

Ran on Kiln's test stand (2026-11-04): TopperFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/commands/SharedSuggestionProvider.

What it needs from Kiln

• com.mojang.authlib.GameProfile
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarting
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopping
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Join
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.server.MinecraftServer
• net.minecraft.server.Services
• net.minecraft.server.network.ServerGamePacketListenerImpl
• net.minecraft.server.permissions.LevelBasedPermissionSet
• net.minecraft.server.permissions.PermissionLevel
• net.minecraft.server.permissions.PermissionSet
• net.minecraft.server.players.NameAndId
• net.minecraft.server.players.PlayerList
• net.minecraft.server.players.UserNameToIdResolver
• net.minecraft.stats.StatType
• net.minecraft.stats.StatsCounter
• net.minecraft.commands.SharedSuggestionProvider
• FabricLoader.isModLoaded()
• BuiltInRegistries.STAT_TYPE
• Identifier.tryBuild()
• Identifier.tryParse()
• ServerPlayer.getGameProfile()
• ServerPlayer.getStats()

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

In the author's words

Another leaderboard plugin with better features and performance

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file topper-fabric-4.7.2+26.3.jar. The scan reads the mod's classes; it does not run them.