Locked Villager Trades

Evidence

Ran on Kiln's test stand (2026-11-04): Locked_villager_trades did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/networking/v1/PayloadTypeRegistry; Locked_villager_tradesClient 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.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.minecraft.client.gui.screens.inventory.MerchantScreen
• 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.MinecraftServer
• net.minecraft.world.entity.npc.villager.Villager
• net.minecraft.world.entity.npc.villager.VillagerData
• net.minecraft.world.entity.npc.villager.VillagerProfession
• net.minecraft.world.inventory.MerchantMenu
• net.minecraft.world.item.trading.Merchant
• net.minecraft.world.item.trading.MerchantOffer
• net.minecraft.world.item.trading.MerchantOffers
• net.minecraft.world.level.storage.ValueInput
• net.minecraft.world.level.storage.ValueOutput
• Minecraft.execute()
• LocalPlayer.containerMenu
• DefaultedRegistry.getOptional()
• BuiltInRegistries.VILLAGER_PROFESSION
• Identifier.CODEC
• ServerLevel.getServer()
• ServerPlayer.containerMenu
• ServerPlayer.getGameProfile()
• ItemStack.isSameItemSameComponents()

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

No more villager trade re-rolling. Allows players to choose the first villager trade offer from a per-profession fixed set of trades.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file locked_villager_trades-1.0.5.jar. The scan reads the mod's classes; it does not run them.