Viper Private Chests

Evidence

Ran on Kiln's test stand (2026-11-04): ViperPrivateChests did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/event/lifecycle/v1/ServerLifecycleEvents.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarted
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopping
• net.fabricmc.fabric.api.event.player.PlayerBlockBreakEvents
• net.fabricmc.fabric.api.event.player.PlayerBlockBreakEvents.Before
• net.fabricmc.fabric.api.event.player.UseBlockCallback
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.core.component.DataComponents
• net.minecraft.nbt.CompoundTag
• net.minecraft.nbt.ListTag
• net.minecraft.nbt.NbtAccounter
• net.minecraft.nbt.NbtIo
• net.minecraft.nbt.StringTag
• net.minecraft.network.protocol.game.ClientboundBlockUpdatePacket
• net.minecraft.network.protocol.game.ClientboundSetActionBarTextPacket
• net.minecraft.network.protocol.game.ClientboundSoundPacket
• net.minecraft.server.MinecraftServer
• net.minecraft.server.ServerScoreboard
• net.minecraft.server.network.ServerGamePacketListenerImpl
• net.minecraft.server.permissions.LevelBasedPermissionSet
• net.minecraft.server.permissions.PermissionLevel
• net.minecraft.world.Container
• net.minecraft.world.SimpleContainer
• net.minecraft.world.SimpleMenuProvider
• net.minecraft.world.entity.player.Inventory
• net.minecraft.world.inventory.AbstractContainerMenu
• net.minecraft.world.inventory.ContainerInput
• net.minecraft.world.inventory.MenuType
• net.minecraft.world.inventory.Slot
• net.minecraft.world.item.component.ItemLore
• net.minecraft.world.level.block.ChestBlock
• net.minecraft.world.level.block.SignBlock
• net.minecraft.world.level.block.WallSignBlock
• net.minecraft.world.level.block.entity.BlockEntity
• net.minecraft.world.level.block.entity.SignBlockEntity
• net.minecraft.world.level.block.entity.SignText
• net.minecraft.world.level.block.entity.SignTextSlot
• and 29 more

On the roadmap: Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

A server-side container protection mod for Fabric that locks blocks via standard [private] or [public] wall signs, utilizing packet-level correction to block griefing while offering team lists, decay systems, and intruder redstone traps.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file viper-private-chests-1.0.0.jar. The scan reads the mod's classes; it does not run them.