Cyv

Calls something that is on Kiln's roadmap. Parts of it may already run.

Evidence

Ran on Kiln's test stand (2026-11-04): CyvFabricClient did not start: java.lang.NoSuchMethodError: 'com.mojang.blaze3d.platform.Window net.minecraft.client.Minecraft.getWindow()'.

What it needs from Kiln

Mixin
com.mojang.blaze3d.platform.InputConstants.Key
com.mojang.blaze3d.platform.Window
net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback
net.fabricmc.fabric.api.client.command.v2.ClientCommands
net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents
net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents.ClientStopping
net.minecraft.client.OptionInstance
net.minecraft.client.Options
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.EditBox
net.minecraft.client.gui.components.debug.DebugScreenEntryList
net.minecraft.client.gui.screens.ChatScreen
net.minecraft.client.gui.screens.inventory.ContainerScreen
net.minecraft.client.input.CharacterEvent
net.minecraft.client.input.KeyEvent
net.minecraft.client.input.MouseButtonEvent
net.minecraft.client.player.ClientInput
net.minecraft.commands.arguments.MessageArgument
net.minecraft.util.Mth
net.minecraft.world.entity.player.Abilities
net.minecraft.world.entity.player.Input
net.minecraft.world.level.block.LadderBlock
net.minecraft.world.level.block.VineBlock
net.minecraft.world.phys.AABB
net.minecraft.world.phys.HitResult.Type
net.minecraft.world.phys.Vec2
net.minecraft.world.phys.shapes.VoxelShape
InputConstants.UNKNOWN
KeyMapping.isDown()
KeyMapping.matches()
KeyMapping.matchesMouse()
KeyMapping.releaseAll()
KeyMapping.setDown()
Minecraft.debugEntries
Minecraft.getDeltaTracker()
Minecraft.getWindow()
Minecraft.isLocalServer()
Minecraft.options
and 24 more

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

Port of CyvClient-1.8.9 parkour features to forge and fabric.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file cyvfabric-1.6.1+26.3.jar. The scan reads the mod's classes; it does not run them.

Reports from players

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