Carry On

Evidence

Ran on Kiln's test stand (2026-11-04): CarryOnFabricMod did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/attachment/v1/AttachmentRegistry$Builder; CarryOnFabricClientMod did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload.

What it needs from Kiln

• Mixin
• com.mojang.authlib.GameProfile
• net.fabricmc.fabric.api.attachment.v1.AttachmentRegistry
• net.fabricmc.fabric.api.attachment.v1.AttachmentRegistry.Builder
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.Context
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.PlayPayloadHandler
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.entity.event.v1.ServerLivingEntityEvents
• net.fabricmc.fabric.api.entity.event.v1.ServerLivingEntityEvents.AllowDamage
• net.fabricmc.fabric.api.entity.event.v1.ServerLivingEntityEvents.AllowDeath
• net.fabricmc.fabric.api.event.lifecycle.v1.CommonLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.CommonLifecycleEvents.TagsLoaded
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.SyncDataPackContents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• net.fabricmc.fabric.api.event.player.AttackBlockCallback
• net.fabricmc.fabric.api.event.player.AttackEntityCallback
• net.fabricmc.fabric.api.event.player.PlayerBlockBreakEvents
• net.fabricmc.fabric.api.event.player.PlayerBlockBreakEvents.Before
• net.fabricmc.fabric.api.event.player.UseBlockCallback
• net.fabricmc.fabric.api.event.player.UseEntityCallback
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Disconnect
• net.fabricmc.fabric.api.resource.IdentifiableResourceReloadListener
• net.fabricmc.fabric.api.resource.ResourceManagerHelper
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.commands.arguments.EntityArgument
• net.minecraft.commands.arguments.blocks.BlockStateParser
• net.minecraft.commands.arguments.blocks.BlockStateParser.BlockResult
• net.minecraft.commands.arguments.item.ItemInput
• net.minecraft.commands.arguments.item.ItemParser
• net.minecraft.core.Direction.Axis
• net.minecraft.core.RegistryAccess
• net.minecraft.core.RegistryAccess.Frozen
• net.minecraft.core.RegistrySetBuilder
• net.minecraft.nbt.CompoundTag
• net.minecraft.nbt.NbtOps
• and 80 more

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

In the author's words

Carry On allows you to pick up Tile Entities and Mobs and carry them around!

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file carryon-fabric-26.3-2.12.1.jar. The scan reads the mod's classes; it does not run them.