Timber

Evidence

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

What it needs from Kiln

• Mixin
• 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.player.PlayerBlockBreakEvents
• net.fabricmc.fabric.api.event.player.PlayerBlockBreakEvents.Before
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.core.RegistryAccess
• net.minecraft.core.component.DataComponents
• net.minecraft.core.particles.BlockParticleOption
• net.minecraft.core.particles.ParticleTypes
• net.minecraft.network.chat.ClickEvent
• net.minecraft.network.chat.ClickEvent.RunCommand
• net.minecraft.network.chat.ClickEvent.SuggestCommand
• net.minecraft.network.chat.HoverEvent
• net.minecraft.network.chat.HoverEvent.ShowText
• net.minecraft.network.chat.Style
• net.minecraft.server.MinecraftServer
• net.minecraft.server.permissions.PermissionSet
• net.minecraft.server.permissions.Permissions
• net.minecraft.server.players.PlayerList
• net.minecraft.tags.BlockTags
• net.minecraft.tags.ItemTags
• net.minecraft.tags.TagKey
• net.minecraft.world.effect.MobEffectInstance
• net.minecraft.world.effect.MobEffects
• net.minecraft.world.entity.item.FallingBlockEntity
• net.minecraft.world.entity.item.ItemEntity
• net.minecraft.world.entity.player.Inventory
• net.minecraft.world.item.enchantment.EnchantmentHelper
• net.minecraft.world.item.enchantment.Enchantments
• net.minecraft.world.level.block.LevelEvent
• net.minecraft.world.level.entity.EntityTypeTest
• net.minecraft.world.phys.AABB
• net.minecraft.world.item.ItemInstance
• BlockPos.distSqr()
• BlockPos.offset()
• Holder.is()
• Holder.Reference.is()
• and 33 more

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

In the author's words

Break one log and the whole tree comes down. Inspired by the classic Vanilla Tweaks Timber datapack.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file timber-1.0.19.jar. The scan reads the mod's classes; it does not run them.