Baby Potion

Evidence

Ran on Kiln's test stand (2026-11-04): BabyPotion did not start: java.lang.NoSuchFieldError: Class net.minecraft.core.registries.BuiltInRegistries does not have member field 'net.minecraft.core.Registry ATTRIBUTE'.

What it needs from Kiln

• Mixin
• net.fabricmc.fabric.api.gamerule.v1.GameRuleBuilder
• net.fabricmc.fabric.api.gamerule.v1.GameRuleBuilder.EnumRuleBuilder
• net.minecraft.server.MinecraftServer
• net.minecraft.world.effect.MobEffect
• net.minecraft.world.effect.MobEffectCategory
• net.minecraft.world.effect.MobEffectInstance
• net.minecraft.world.entity.ConversionParams
• net.minecraft.world.entity.ConversionParams.AfterConversion
• net.minecraft.world.entity.EntityAttachment
• net.minecraft.world.entity.EntityAttachments
• net.minecraft.world.entity.EntityAttachments.Builder
• net.minecraft.world.entity.EntityDimensions
• net.minecraft.world.entity.EntitySpawnReason
• net.minecraft.world.entity.EntityType
• net.minecraft.world.entity.EntityTypes
• net.minecraft.world.entity.ai.attributes.Attribute.Sentiment
• net.minecraft.world.entity.ai.attributes.AttributeModifier
• net.minecraft.world.entity.ai.attributes.AttributeModifier.Operation
• net.minecraft.world.entity.ai.attributes.RangedAttribute
• net.minecraft.world.entity.animal.frog.Frog
• net.minecraft.world.entity.animal.frog.Tadpole
• net.minecraft.world.entity.monster.ElderGuardian
• net.minecraft.world.entity.monster.Guardian
• net.minecraft.world.item.alchemy.Potion
• net.minecraft.world.level.gamerules.GameRuleCategory
• net.minecraft.world.level.gamerules.GameRules
• Holder.getRegisteredName()
• BuiltInRegistries.ATTRIBUTE
• BuiltInRegistries.MOB_EFFECT
• BuiltInRegistries.POTION
• ServerLevel.getCurrentDifficultyAt()
• SoundEvents.ELDER_GUARDIAN_FLOP
• SoundEvents.GUARDIAN_FLOP
• SoundEvents.TADPOLE_FLOP
• SoundEvents.TADPOLE_GROW_UP
• Entity.addTag()
• LivingEntity.getType()
• LivingEntity.isBaby()
• Attribute.setSentiment()
• AttributeInstance.addOrReplacePermanentModifier()
• and 1 more

On the roadmap: Code next to data (0.3), Mixin (0.5)

In the author's words

Baby Potion adds a new "Potion of Infantilism" brewed from a golden dandelion temporarily reverting mobs to their baby form (or scales them down if no baby form exists).

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file baby_potion-1.0.4+mc26.3.jar. The scan reads the mod's classes; it does not run them.