BetterAD

Evidence

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

What it needs from Kiln

• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents.ClientStopping
• net.minecraft.advancements.Advancement
• net.minecraft.advancements.AdvancementNode
• net.minecraft.advancements.AdvancementRequirements
• net.minecraft.advancements.AdvancementRewards
• net.minecraft.advancements.AdvancementTree
• net.minecraft.advancements.AdvancementType
• net.minecraft.advancements.CriterionProgress
• net.minecraft.advancements.DisplayInfo
• net.minecraft.client.gui.components.AbstractSelectionList
• net.minecraft.client.gui.components.AbstractSelectionList.Entry
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.Checkbox
• net.minecraft.client.gui.components.Checkbox.Builder
• net.minecraft.client.gui.components.Checkbox.OnValueChange
• net.minecraft.client.gui.components.ObjectSelectionList
• net.minecraft.client.gui.components.ObjectSelectionList.Entry
• net.minecraft.client.multiplayer.ClientAdvancements.Listener
• net.minecraft.client.multiplayer.ServerData
• net.minecraft.core.HolderSet
• net.minecraft.util.FormattedCharSequence
• net.minecraft.world.effect.MobEffect
• net.minecraft.world.effect.MobEffectInstance
• net.minecraft.world.item.ItemStackTemplate
• JsonArray.forEach()
• AdvancementProgress.<init>()
• AdvancementProgress.getCompletedCriteria()
• AdvancementProgress.getCriterion()
• AdvancementProgress.getPercent()
• AdvancementProgress.getRemainingCriteria()
• AdvancementProgress.hasProgress()
• AdvancementProgress.update()
• KeyMapping.getTranslatedKeyMessage()
• KeyMapping.matches()
• Minecraft.getCurrentServer()
• Minecraft.hasSingleplayerServer()
• Minecraft.setScreenAndShow()
• and 16 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3)

In the author's words

BAD is a localized advancement tracker that automatically lists every task of every advancement, marks completed goals, and shows segmented progress in an in-game overlay and three-panel overview.

Scan

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