ChainVeinFabric

Evidence

Ran on Kiln's test stand (2026-11-04): Chainveinfabric did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/command/v2/CommandRegistrationCallback; ChainveinfabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/network/chat/ClickEvent.

What it needs from Kiln

• Mixin
• com.mojang.blaze3d.pipeline.RenderTarget
• com.mojang.blaze3d.vertex.BufferBuilder
• com.mojang.blaze3d.vertex.MeshData
• com.mojang.blaze3d.vertex.VertexConsumer
• com.mojang.renderpearl.api.buffers.GpuBufferSlice
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarting
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopped
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.Context
• net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.PlayPayloadHandler
• net.fabricmc.fabric.api.transfer.v1.item.ContainerStorage
• net.fabricmc.fabric.api.transfer.v1.item.ItemVariant
• net.fabricmc.fabric.api.transfer.v1.storage.SlottedStorage
• net.fabricmc.fabric.api.transfer.v1.transaction.Transaction
• net.minecraft.client.gui.Hud
• net.minecraft.client.input.MouseButtonEvent
• net.minecraft.client.multiplayer.MultiPlayerGameMode
• net.minecraft.client.renderer.RenderBuffers
• net.minecraft.client.renderer.culling.Frustum
• net.minecraft.client.renderer.state.level.CameraRenderState
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.core.BlockPos.MutableBlockPos
• net.minecraft.core.Direction.Axis
• net.minecraft.core.NonNullList
• net.minecraft.network.codec.ByteBufCodecs
• net.minecraft.network.codec.StreamCodec
• net.minecraft.network.codec.StreamCodec.CodecOperation
• net.minecraft.network.protocol.common.custom.CustomPacketPayload
• net.minecraft.network.protocol.common.custom.CustomPacketPayload.Type
• net.minecraft.network.protocol.common.custom.CustomPacketPayload.TypeAndCodec
• net.minecraft.server.MinecraftServer
• net.minecraft.server.level.ServerPlayerGameMode
• and 56 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

Automatically mines all connected blocks of the same type when one block is broken.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file ChainVeinFabric-4.1.2+26.3.jar. The scan reads the mod's classes; it does not run them.