Legendary Tooltips

Evidence

Ran on Kiln's test stand (2026-11-04): LegendaryTooltipsFabric did not start: java.lang.NoClassDefFoundError: org/apache/logging/log4j/LogManager; LegendaryTooltipsFabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/server/packs/resources/PreparableReloadListener.

What it needs from Kiln

• an access widener
• Mixin
• com.mojang.math.Axis
• com.mojang.renderpearl.api.textures.GpuTexture
• net.minecraft.client.gui.screens.inventory.AbstractContainerScreen
• net.minecraft.client.gui.screens.inventory.tooltip.ClientTextTooltip
• net.minecraft.client.gui.screens.inventory.tooltip.ClientTooltipComponent
• net.minecraft.client.gui.screens.inventory.tooltip.TooltipRenderUtil
• net.minecraft.client.renderer.Rect2i
• net.minecraft.client.renderer.texture.AbstractTexture
• net.minecraft.client.renderer.texture.TextureManager
• net.minecraft.locale.Language
• net.minecraft.network.chat.CommonComponents
• net.minecraft.network.chat.ComponentContents
• net.minecraft.network.chat.FormattedText
• net.minecraft.network.chat.Style
• net.minecraft.network.chat.TextColor
• net.minecraft.network.chat.contents.TranslatableContents
• net.minecraft.server.packs.resources.Resource
• net.minecraft.server.packs.resources.ResourceManager
• net.minecraft.server.packs.resources.ResourceManagerReloadListener
• net.minecraft.util.FormattedCharSequence
• net.minecraft.util.GsonHelper
• net.minecraft.util.Mth
• net.minecraft.world.inventory.Slot
• net.minecraft.world.inventory.tooltip.TooltipComponent
• org.apache.commons.lang3.exception.ExceptionUtils
• org.apache.logging.log4j.LogManager
• org.apache.logging.log4j.Logger
• net.minecraft.server.packs.resources.PreparableReloadListener
• Minecraft.getTextureManager()
• GuiGraphicsExtractor.nextStratum()
• GuiGraphicsExtractor.pose()
• Screen.font
• ClientLevel.registryAccess()
• MutableComponent.getContents()
• Identifier.tryParse()
• ItemStack.isDamageableItem()

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

Give your rare items a fancier tooltip! Also adds additional tooltip configuration options.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file LegendaryTooltips-26.3-fabric-1.6.3.jar. The scan reads the mod's classes; it does not run them.