Librarian Insight

Evidence

Ran on Kiln's test stand (2026-11-04): LibrarianInsightFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/world/entity/npc/villager/Villager.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback
• net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientBlockEntityEvents
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientBlockEntityEvents.Load
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientBlockEntityEvents.Unload
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientEntityEvents
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientEntityEvents.Unload
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents.AfterForeground
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents.BeforeInit
• net.fabricmc.fabric.api.event.player.UseBlockCallback
• net.fabricmc.fabric.api.event.player.UseEntityCallback
• net.minecraft.client.gui.components.EditBox
• net.minecraft.client.gui.screens.inventory.MerchantScreen
• net.minecraft.client.input.MouseButtonEvent
• net.minecraft.client.multiplayer.MultiPlayerGameMode
• net.minecraft.client.server.IntegratedServer
• net.minecraft.core.GlobalPos
• net.minecraft.core.HolderLookup.RegistryLookup
• net.minecraft.core.RegistryAccess
• net.minecraft.core.component.DataComponentExactPredicate
• net.minecraft.core.component.DataComponents
• net.minecraft.server.players.PlayerList
• net.minecraft.tags.EnchantmentTags
• net.minecraft.tags.ItemTags
• net.minecraft.util.FormattedCharSequence
• net.minecraft.util.Util
• net.minecraft.world.effect.MobEffectInstance
• net.minecraft.world.effect.MobEffects
• net.minecraft.world.entity.ai.Brain
• net.minecraft.world.entity.ai.behavior.WorkAtPoi
• net.minecraft.world.entity.ai.gossip.GossipContainer
• net.minecraft.world.entity.ai.gossip.GossipType
• 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.entity.npc.villager.VillagerType
• net.minecraft.world.entity.schedule.Activity
• net.minecraft.world.flag.FeatureFlagSet
• and 75 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

A mod that displays a villager's book trade on lecterns and shows stats/helpful info for trading

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file librarian-insight-fabric-1.1+mc26.3.jar. The scan reads the mod's classes; it does not run them.