Villager Trade Reroll

Evidence

Ran on Kiln's test stand (2026-11-04): LibrarianfilterFabric did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/event/player/UseBlockCallback.

What it needs from Kiln

• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.event.player.UseBlockCallback
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.commands.SharedSuggestionProvider
• net.minecraft.core.Direction.Plane
• net.minecraft.core.GlobalPos
• net.minecraft.core.HolderSet
• net.minecraft.core.RegistryAccess
• net.minecraft.core.RegistryAccess.Frozen
• net.minecraft.core.component.DataComponents
• net.minecraft.core.particles.ParticleTypes
• net.minecraft.locale.Language
• net.minecraft.network.chat.ClickEvent
• net.minecraft.network.chat.ClickEvent.RunCommand
• net.minecraft.network.chat.Style
• net.minecraft.server.MinecraftServer
• net.minecraft.tags.EnchantmentTags
• net.minecraft.tags.TagKey
• net.minecraft.util.Prediction
• net.minecraft.util.Unit
• net.minecraft.world.effect.MobEffect
• net.minecraft.world.effect.MobEffectInstance
• net.minecraft.world.effect.MobEffects
• net.minecraft.world.entity.EntityTypes
• net.minecraft.world.entity.ai.Brain
• net.minecraft.world.entity.ai.memory.MemoryModuleType
• net.minecraft.world.entity.npc.villager.Villager
• net.minecraft.world.entity.npc.villager.VillagerData
• net.minecraft.world.entity.npc.villager.VillagerProfession
• net.minecraft.world.item.alchemy.PotionContents
• net.minecraft.world.item.component.SuspiciousStewEffects
• net.minecraft.world.item.component.SuspiciousStewEffects.Entry
• net.minecraft.world.item.enchantment.Enchantment
• net.minecraft.world.item.enchantment.EnchantmentHelper
• net.minecraft.world.item.enchantment.EnchantmentInstance
• net.minecraft.world.item.enchantment.ItemEnchantments
• net.minecraft.world.item.trading.ItemCost
• net.minecraft.world.item.trading.MerchantOffer
• and 72 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Machines (0.4)

In the author's words

Mod to instant reroll/refresh/Recycle trade using name on sign

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file librarian-filter-universal-26.3-1.0.1.jar. The scan reads the mod's classes; it does not run them.