squaremap

Evidence

Ran on Kiln's test stand (2026-11-04): SquaremapFabricInitializer did not start: java.lang.NoClassDefFoundError: net/fabricmc/loader/api/ModContainer.

What it needs from Kiln

• an access widener
• Mixin
• com.mojang.authlib.GameProfile
• net.fabricmc.api.EnvType
• net.fabricmc.fabric.api.attachment.v1.AttachmentRegistry
• net.fabricmc.fabric.api.attachment.v1.AttachmentRegistry.Builder
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents.ClientStarted
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents.ClientStopping
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientTickEvents.StartLevelTick
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Disconnect
• net.fabricmc.fabric.api.event.EventFactory
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerChunkEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerChunkEvents.Load
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLevelEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLevelEvents.Load
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLevelEvents.Unload
• 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.ServerStarting
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopped
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
• net.fabricmc.fabric.api.event.player.PlayerBlockBreakEvents
• net.fabricmc.fabric.api.event.player.PlayerBlockBreakEvents.After
• net.fabricmc.loader.api.ModContainer
• net.fabricmc.loader.api.Version
• net.fabricmc.loader.api.metadata.ModMetadata
• net.minecraft.SharedConstants
• net.minecraft.TracingExecutor
• net.minecraft.WorldVersion
• net.minecraft.client.color.block.BlockTintSource
• net.minecraft.client.renderer.block.FluidModel
• net.minecraft.client.renderer.block.FluidStateModelSet
• net.minecraft.client.renderer.texture.SpriteContents
• net.minecraft.client.renderer.texture.TextureAtlasSprite
• net.minecraft.client.resources.model.ModelManager
• net.minecraft.client.resources.model.sprite.Material
• net.minecraft.client.resources.model.sprite.Material.Baked
• net.minecraft.commands.CommandSourceStack
• net.minecraft.commands.arguments.DimensionArgument
• and 80 more

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

squaremap is a minimalistic & lightweight world map viewer for Minecraft servers, using the vanilla map rendering style

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file squaremap-fabric-mc26.3-1.4.3.jar. The scan reads the mod's classes; it does not run them.