EssentialClient

Evidence

Ran on Kiln's test stand (2026-11-04): EssentialClient did not start: java.lang.NoSuchMethodError: 'boolean net.fabricmc.loader.api.FabricLoader.isModLoaded(java.lang.String)'.

What it needs from Kiln

• Mixin
• 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.PacketSender
• net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry
• net.fabricmc.fabric.api.resource.v1.ResourceLoader
• net.minecraft.SharedConstants
• net.minecraft.WorldVersion
• net.minecraft.client.MouseHandler
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.StringWidget
• net.minecraft.client.gui.components.Tooltip
• net.minecraft.client.gui.components.events.GuiEventListener
• net.minecraft.client.gui.layouts.GridLayout
• net.minecraft.client.gui.layouts.GridLayout.RowHelper
• net.minecraft.client.gui.layouts.HeaderAndFooterLayout
• net.minecraft.client.gui.layouts.LayoutElement
• net.minecraft.client.gui.layouts.LayoutSettings
• net.minecraft.client.model.geom.builders.UVPair
• net.minecraft.client.renderer.Sheets
• net.minecraft.client.renderer.SpriteMapper
• net.minecraft.client.renderer.texture.TextureAtlasSprite
• net.minecraft.client.resources.model.sprite.AtlasManager
• net.minecraft.core.Direction.Axis
• net.minecraft.nbt.CompoundTag
• net.minecraft.network.chat.CommonComponents
• net.minecraft.network.codec.ByteBufCodecs
• net.minecraft.network.codec.StreamCodec
• 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.packs.PackType
• net.minecraft.server.packs.resources.PreparableReloadListener
• net.minecraft.server.packs.resources.PreparableReloadListener.PreparationBarrier
• net.minecraft.server.packs.resources.PreparableReloadListener.SharedState
• and 19 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

EssentialClient is a client-side mod that adds many client utilities as well as providing a gui to modify carpet rules!

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file EssentialClient-2.8.0+26.3.jar. The scan reads the mod's classes; it does not run them.