AntiFlight

Evidence

Ran on Kiln's test stand (2026-11-04): AntiFlyFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/world/item/ItemInstance.

What it needs from Kiln

• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.StartTick
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Disconnect
• net.fabricmc.loader.api.ModContainer
• net.fabricmc.loader.api.Version
• net.fabricmc.loader.api.metadata.ModMetadata
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.commands.SharedSuggestionProvider
• net.minecraft.commands.arguments.EntityArgument
• net.minecraft.core.RegistryAccess
• net.minecraft.network.chat.Style
• net.minecraft.server.MinecraftServer
• net.minecraft.server.network.ServerGamePacketListenerImpl
• net.minecraft.server.permissions.PermissionSet
• net.minecraft.server.permissions.Permissions
• net.minecraft.server.players.NameAndId
• net.minecraft.server.players.PlayerList
• net.minecraft.stats.ServerStatsCounter
• net.minecraft.stats.StatType
• net.minecraft.stats.Stats
• net.minecraft.tags.FluidTags
• net.minecraft.util.Mth
• net.minecraft.world.damagesource.DamageSources
• net.minecraft.world.effect.MobEffectInstance
• net.minecraft.world.effect.MobEffects
• net.minecraft.world.entity.EquipmentSlot
• net.minecraft.world.entity.Relative
• net.minecraft.world.entity.player.Abilities
• net.minecraft.world.entity.vehicle.boat.Boat
• net.minecraft.world.food.FoodData
• net.minecraft.world.item.enchantment.EnchantmentHelper
• net.minecraft.world.item.enchantment.Enchantments
• net.minecraft.world.level.LevelHeightAccessor
• net.minecraft.world.level.material.FluidState
• net.minecraft.world.level.storage.LevelData
• and 62 more

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

In the author's words

Flight-only anti-cheat for Paper and Fabric servers. Stops fly hacks and elytra exploits without flagging vanilla movement, with optional Hunger Mode penalties.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file AntiFly-fabric-26.3-1.1.6.jar. The scan reads the mod's classes; it does not run them.