FairCount

Evidence

Ran on Kiln's test stand (2026-11-04): FairCount did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/command/v2/CommandRegistrationCallback; FairCountClient did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload.

What it needs from Kiln

• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Join
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.networking.v1.PacketSender
• net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Disconnect
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Join
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.Context
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.PlayPayloadHandler
• net.fabricmc.loader.api.ModContainer
• net.fabricmc.loader.api.metadata.ModMetadata
• net.fabricmc.loader.api.metadata.ModOrigin
• net.fabricmc.loader.api.metadata.ModOrigin.Kind
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.network.codec.ByteBufCodecs
• net.minecraft.network.codec.StreamCodec
• net.minecraft.network.codec.StreamCodec.CodecOperation
• net.minecraft.network.protocol.common.custom.CustomPacketPayload
• net.minecraft.network.protocol.common.custom.CustomPacketPayload.Type
• net.minecraft.network.protocol.common.custom.CustomPacketPayload.TypeAndCodec
• net.minecraft.server.MinecraftServer
• net.minecraft.server.level.ClientInformation
• net.minecraft.server.network.ServerGamePacketListenerImpl
• net.minecraft.server.packs.repository.Pack
• net.minecraft.server.packs.repository.PackRepository
• net.minecraft.server.packs.repository.PackSource
• net.minecraft.server.permissions.PermissionSet
• net.minecraft.server.permissions.Permissions
• net.minecraft.server.players.PlayerList
• FabricLoader.getAllMods()
• FabricLoader.getModContainer()
• Minecraft.getResourcePackDirectory()
• Minecraft.getResourcePackRepository()
• ServerPlayer.clientInformation()
• ServerPlayer.connection
• and 1 more

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

In the author's words

A lightweight, open-source anti-cheat that prevents hackers by verifying client mod counts and IDs.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file faircount-1.2.8+mc26.X.jar. The scan reads the mod's classes; it does not run them.