BucketLib

Evidence

Ran on Kiln's test stand (2026-11-04): BucketLibMod did not start: java.lang.NoClassDefFoundError: net/minecraft/core/dispenser/DispenseItemBehavior; BucketLibClientMod did not start: java.lang.NoClassDefFoundError: net/minecraft/client/renderer/item/ItemModels.

What it needs from Kiln

• an access widener
• Mixin
• net.fabricmc.fabric.api.lookup.v1.item.ItemApiLookup
• net.fabricmc.fabric.api.lookup.v1.item.ItemApiLookup.ItemApiProvider
• net.fabricmc.fabric.api.recipe.v1.ingredient.CustomIngredient
• net.fabricmc.fabric.api.recipe.v1.ingredient.CustomIngredientSerializer
• net.fabricmc.fabric.api.transfer.v1.context.ContainerItemContext
• net.fabricmc.fabric.api.transfer.v1.fluid.FluidConstants
• net.fabricmc.fabric.api.transfer.v1.fluid.FluidStorage
• net.fabricmc.fabric.api.transfer.v1.fluid.FluidVariant
• net.fabricmc.fabric.api.transfer.v1.fluid.base.SingleFluidStorage
• net.fabricmc.fabric.api.transfer.v1.item.ItemVariant
• net.fabricmc.fabric.api.transfer.v1.storage.Storage
• net.fabricmc.fabric.api.transfer.v1.storage.StoragePreconditions
• net.fabricmc.fabric.api.transfer.v1.storage.StorageView
• net.fabricmc.fabric.impl.transfer.VariantCodecs
• net.minecraft.advancements.triggers.ConsumeItemTrigger
• net.minecraft.advancements.triggers.CriteriaTriggers
• net.minecraft.advancements.triggers.FilledBucketTrigger
• net.minecraft.advancements.triggers.ItemDurabilityTrigger
• net.minecraft.client.color.block.BlockTintSource
• net.minecraft.client.color.item.Constant
• net.minecraft.client.color.item.ItemTintSource
• net.minecraft.client.color.item.ItemTintSources
• net.minecraft.client.renderer.block.FluidModel
• net.minecraft.client.renderer.block.FluidStateModelSet
• net.minecraft.client.renderer.item.CompositeModel
• net.minecraft.client.renderer.item.ItemModel
• net.minecraft.client.renderer.item.ItemModel.BakingContext
• net.minecraft.client.renderer.item.ItemModel.Unbaked
• net.minecraft.client.renderer.item.ItemModelResolver
• net.minecraft.client.renderer.item.ItemModels
• net.minecraft.client.renderer.item.ItemStackRenderState
• net.minecraft.client.renderer.texture.MissingTextureAtlasSprite
• net.minecraft.client.renderer.texture.SpriteContents
• net.minecraft.client.renderer.texture.TextureAtlasSprite
• net.minecraft.client.resources.model.ModelBaker
• net.minecraft.client.resources.model.ModelManager
• net.minecraft.client.resources.model.ResolvableModel
• net.minecraft.client.resources.model.ResolvableModel.Resolver
• net.minecraft.client.resources.model.ResolvedModel
• net.minecraft.client.resources.model.sprite.Material
• and 81 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

Library mod for custom buckets

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file bucketlib-fabric-26.3-5.3.0.1.jar. The scan reads the mod's classes; it does not run them.