G1ax Crystal Optimizer

Evidence

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

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback
• net.fabricmc.fabric.api.client.command.v2.ClientCommands
• 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.loader.api.ModContainer
• net.fabricmc.loader.api.Version
• net.fabricmc.loader.api.metadata.ModMetadata
• net.minecraft.SharedConstants
• net.minecraft.client.multiplayer.ServerData
• net.minecraft.network.FriendlyByteBuf
• net.minecraft.network.RegistryFriendlyByteBuf
• net.minecraft.network.chat.HoverEvent
• net.minecraft.network.chat.Style
• 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
• FabricLoader.getModContainer()
• ChatFormatting.getByCode()
• Minecraft.execute()
• Minecraft.getCurrentServer()
• Minecraft.isLocalServer()
• MutableComponent.copy()
• MutableComponent.withStyle()

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

G1axCrystalOptimizer optimizes end crystal placement and breaking with efficient client-side processing, reducing perceived delay and delivering a faster, smoother Crystal PvP experience.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file g1axcrystaloptimizer-1.0.7.jar. The scan reads the mod's classes; it does not run them.