Just Hammers

Evidence

Ran on Kiln's test stand (2026-11-04): HammersFabric did not start: java.lang.NoSuchFieldError: Class net.minecraft.core.registries.BuiltInRegistries does not have member field 'net.minecraft.core.Registry CREATIVE_MODE_TAB'; HammersFabricClient did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/client/rendering/v1/level/LevelRenderEvents.

What it needs from Kiln

• Mixin
• com.mojang.blaze3d.vertex.PoseStack
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelRenderContext
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelRenderEvents
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelRenderEvents.CollectSubmits
• net.minecraft.client.Camera
• net.minecraft.client.renderer.GameRenderer
• net.minecraft.client.renderer.SubmitNodeCollector
• net.minecraft.client.renderer.rendertype.RenderTypes
• net.minecraft.core.NonNullList
• net.minecraft.core.component.DataComponents
• net.minecraft.network.codec.StreamCodec
• net.minecraft.stats.StatType
• net.minecraft.stats.Stats
• net.minecraft.tags.TagKey
• net.minecraft.world.entity.EquipmentSlot
• net.minecraft.world.entity.ExperienceOrb
• net.minecraft.world.entity.item.ItemEntity
• net.minecraft.world.item.CreativeModeTab.DisplayItemsGenerator
• net.minecraft.world.item.CreativeModeTab.ItemDisplayParameters
• net.minecraft.world.item.CreativeModeTab.Output
• net.minecraft.world.item.Item.TooltipContext
• net.minecraft.world.item.ToolMaterial
• net.minecraft.world.item.TooltipFlag
• net.minecraft.world.item.component.Tool
• net.minecraft.world.item.component.TooltipDisplay
• net.minecraft.world.item.crafting.CraftingInput
• net.minecraft.world.item.crafting.CustomRecipe
• net.minecraft.world.item.crafting.RecipeSerializer
• net.minecraft.world.item.crafting.RecipeType
• net.minecraft.world.item.enchantment.Repairable
• net.minecraft.world.level.gameevent.GameEvent
• net.minecraft.world.level.gameevent.GameEvent.Context
• net.minecraft.world.level.gamerules.GameRules
• net.minecraft.world.level.levelgen.structure.BoundingBox
• net.minecraft.world.level.material.FluidState
• net.minecraft.world.phys.HitResult.Type
• net.minecraft.world.phys.shapes.CollisionContext
• Minecraft.gameRenderer
• Minecraft.hitResult
• LocalPlayer.isShiftKeyDown()
• and 29 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

Adds hammers to the game that are able to mine in a 3x3, 3x3x3, 5x5x1, 5x5x3 and finally a 5x5x5! They're pretty awesome.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file just-hammers-fabric-26.3.0.1.jar. The scan reads the mod's classes; it does not run them.