JJElytraSwap

Evidence

Ran on Kiln's test stand (2026-11-04): JJElytraSwapFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/network/protocol/Packet.

What it needs from Kiln

• Mixin
• com.mojang.blaze3d.platform.InputConstants.Key
• net.minecraft.client.Options
• net.minecraft.client.gui.Hud
• net.minecraft.client.gui.components.ChatComponent
• net.minecraft.client.multiplayer.MultiPlayerGameMode
• net.minecraft.core.RegistryAccess
• net.minecraft.core.component.DataComponentHolder
• net.minecraft.core.component.DataComponents
• net.minecraft.network.protocol.game.ServerboundPlayerCommandPacket
• net.minecraft.network.protocol.game.ServerboundPlayerCommandPacket.Action
• net.minecraft.world.entity.EquipmentSlot
• net.minecraft.world.entity.ai.attributes.AttributeModifier
• net.minecraft.world.entity.player.Inventory
• net.minecraft.world.inventory.ContainerInput
• net.minecraft.world.item.component.ItemAttributeModifiers
• net.minecraft.world.item.component.ItemAttributeModifiers.Entry
• net.minecraft.world.item.enchantment.EnchantmentHelper
• net.minecraft.world.item.enchantment.Enchantments
• net.minecraft.world.item.equipment.Equippable
• net.minecraft.network.protocol.Packet
• InputConstants.UNKNOWN
• FabricLoader.isModLoaded()
• KeyMapping.isDown()
• Minecraft.gameMode
• Minecraft.options
• Gui.hud
• ClientLevel.registryAccess()
• ClientPacketListener.send()
• LocalPlayer.getInventory()
• LocalPlayer.getItemBySlot()
• LocalPlayer.isInLiquid()
• LocalPlayer.onGround()
• LocalPlayer.startFallFlying()
• Registry.get()
• Registry.getOrThrow()
• Registries.ENCHANTMENT
• Component.getString()
• ItemStack.get()
• ItemStack.has()

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

Mod that swaps elytra and chestplate when required

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file jjelytraswap-fabric-2.4.0+26.3-dev.jar. The scan reads the mod's classes; it does not run them.