Carpet IGNY Addition

Evidence

Ran on Kiln's test stand (2026-11-04): IGNYServerMod did not start: java.lang.NoSuchMethodError: 'boolean net.fabricmc.loader.api.FabricLoader.isModLoaded(java.lang.String)'; IGNYClient did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/common/custom/CustomPacketPayload.

What it needs from Kiln

• an access widener
• Mixin
• com.mojang.authlib.GameProfile
• com.mojang.math.Transformation
• net.fabricmc.api.EnvType
• net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback
• net.fabricmc.fabric.api.client.command.v2.ClientCommands
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientTickEvents.EndLevelTick
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Disconnect
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Join
• 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.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.loader.api.ModContainer
• net.fabricmc.loader.api.Version
• net.fabricmc.loader.api.metadata.ModDependency
• net.fabricmc.loader.api.metadata.ModMetadata
• net.minecraft.SharedConstants
• net.minecraft.WorldVersion
• net.minecraft.commands.CommandBuildContext
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.ParseFunction
• net.minecraft.commands.SharedSuggestionProvider
• net.minecraft.commands.SharedSuggestionProvider.TextCoordinates
• net.minecraft.commands.arguments.EntityArgument
• net.minecraft.commands.arguments.TimeArgument
• net.minecraft.commands.arguments.coordinates.BlockPosArgument
• net.minecraft.commands.arguments.coordinates.Vec3Argument
• net.minecraft.commands.arguments.coordinates.WorldCoordinate
• net.minecraft.commands.arguments.item.ItemArgument
• net.minecraft.commands.arguments.item.ItemInput
• net.minecraft.commands.arguments.item.ItemPredicateArgument
• net.minecraft.commands.arguments.item.ItemPredicateArgument.Result
• net.minecraft.core.RegistryAccess
• net.minecraft.core.RegistryAccess.Frozen
• net.minecraft.core.component.DataComponents
• 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

A Carpet mod (fabric-carpet) extension that contains some useful or useless functions and some functions that I want but are not included.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file carpet-igny-addition-v1.21.1-mc26.3.jar. The scan reads the mod's classes; it does not run them.