Entity Detective

Evidence

Ran on Kiln's test stand (2026-11-04): EntityDetective did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/command/v2/CommandRegistrationCallback.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
• net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Disconnect
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.Commands
• net.minecraft.commands.Commands.CommandSelection
• net.minecraft.commands.SharedSuggestionProvider
• net.minecraft.commands.arguments.IdentifierArgument
• net.minecraft.network.chat.ClickEvent
• net.minecraft.network.chat.ClickEvent.SuggestCommand
• net.minecraft.network.chat.HoverEvent
• net.minecraft.network.chat.HoverEvent.ShowText
• net.minecraft.network.chat.Style
• net.minecraft.server.MinecraftServer
• net.minecraft.server.level.ChunkHolder
• net.minecraft.server.level.ChunkMap
• net.minecraft.server.level.DistanceManager
• net.minecraft.server.level.ServerChunkCache
• net.minecraft.server.level.Ticket
• net.minecraft.server.level.TicketType
• net.minecraft.server.network.ServerGamePacketListenerImpl
• net.minecraft.server.players.PlayerList
• net.minecraft.world.entity.EntityType
• net.minecraft.world.entity.Mob
• net.minecraft.world.entity.MobCategory
• net.minecraft.world.entity.item.ItemEntity
• net.minecraft.world.level.ChunkPos
• net.minecraft.world.level.NaturalSpawner
• net.minecraft.world.level.NaturalSpawner.SpawnState
• net.minecraft.world.level.TicketStorage
• net.minecraft.world.level.block.entity.BlockEntity
• net.minecraft.world.level.block.entity.BlockEntityType
• net.minecraft.world.level.chunk.LevelChunk
• net.minecraft.world.level.chunk.status.ChunkStatus
• net.minecraft.world.level.entity.EntityTypeTest
• Long2ObjectMap.Entry.getValue()
• DefaultedRegistry.getOptional()
• Registry.getOptional()
• and 11 more

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

A server-side Fabric entity profiler that gives players commands to find, count, profile and locate entities across all dimensions

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file entity-detective-26.3+v2.8.2.jar. The scan reads the mod's classes; it does not run them.