Fletcher

Evidence

Ran on Kiln's test stand (2026-11-04): Fletcher did not start: java.lang.NoSuchFieldError: Class net.minecraft.core.registries.BuiltInRegistries does not have member field 'net.minecraft.core.Registry MENU'; FletcherClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/gui/screens/MenuScreens$ScreenConstructor.

What it needs from Kiln

• net.fabricmc.fabric.api.event.player.UseBlockCallback
• net.fabricmc.fabric.api.recipe.v1.sync.RecipeSynchronization
• net.minecraft.client.gui.screens.MenuScreens
• net.minecraft.client.gui.screens.MenuScreens.ScreenConstructor
• net.minecraft.client.gui.screens.inventory.AbstractContainerScreen
• net.minecraft.client.renderer.RenderPipelines
• net.minecraft.core.NonNullList
• net.minecraft.core.component.DataComponents
• net.minecraft.network.codec.ByteBufCodecs
• net.minecraft.network.codec.StreamCodec
• net.minecraft.stats.StatFormatter
• net.minecraft.stats.StatType
• net.minecraft.stats.Stats
• net.minecraft.tags.TagKey
• net.minecraft.util.Prediction
• net.minecraft.world.Container
• net.minecraft.world.MenuProvider
• net.minecraft.world.SimpleContainer
• net.minecraft.world.entity.player.Inventory
• net.minecraft.world.flag.FeatureFlags
• net.minecraft.world.inventory.AbstractContainerMenu
• net.minecraft.world.inventory.MenuType
• net.minecraft.world.inventory.MenuType.MenuSupplier
• net.minecraft.world.inventory.ResultContainer
• net.minecraft.world.inventory.Slot
• net.minecraft.world.item.ItemStackTemplate
• net.minecraft.world.item.alchemy.PotionContents
• net.minecraft.world.item.crafting.Ingredient
• net.minecraft.world.item.crafting.PlacementInfo
• net.minecraft.world.item.crafting.Recipe
• net.minecraft.world.item.crafting.RecipeHolder
• net.minecraft.world.item.crafting.RecipeInput
• net.minecraft.world.item.crafting.RecipeManager
• net.minecraft.world.item.crafting.RecipeSerializer
• net.minecraft.world.item.crafting.RecipeType
• GuiGraphicsExtractor.blit()
• GuiGraphicsExtractor.blitSprite()
• BlockPos.closerThan()
• BuiltInRegistries.CUSTOM_STAT
• BuiltInRegistries.MENU
• and 23 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

A mod that adds functionality to the Fletching Table.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file fletcher-1.2.1-26.3.jar. The scan reads the mod's classes; it does not run them.