Respackopts

Evidence

Ran on Kiln's test stand (2026-11-04): RespackoptsFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/server/packs/resources/PreparableReloadListener; RespackoptsClientFabric did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/client/command/v2/ClientCommandRegistrationCallback.

What it needs from Kiln

• an access widener
• Mixin
• net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback
• net.fabricmc.fabric.api.client.command.v2.ClientCommands
• net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarted
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStopped
• net.fabricmc.fabric.api.resource.v1.ResourceLoader
• net.minecraft.client.server.IntegratedServer
• net.minecraft.commands.SharedSuggestionProvider
• net.minecraft.commands.arguments.IdentifierArgument
• net.minecraft.network.chat.HoverEvent
• net.minecraft.network.chat.HoverEvent.ShowText
• net.minecraft.network.chat.Style
• net.minecraft.server.MinecraftServer
• net.minecraft.server.packs.PackResources
• net.minecraft.server.packs.PackResources.ResourceOutput
• net.minecraft.server.packs.PackType
• net.minecraft.server.packs.repository.PackRepository
• net.minecraft.server.packs.resources.IoSupplier
• net.minecraft.server.packs.resources.ResourceManager
• net.minecraft.server.packs.resources.ResourceManagerReloadListener
• net.minecraft.world.level.DataPackConfig
• net.minecraft.world.level.WorldDataConfiguration
• net.minecraft.world.level.storage.WorldData
• org.apache.commons.io.IOUtils
• net.minecraft.server.packs.resources.PreparableReloadListener
• Minecraft.getResourceManager()
• Minecraft.getSingleplayerServer()
• Minecraft.reloadResourcePacks()
• MutableComponent.withStyle()

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

Config menus for resource packs

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file respackopts-26.3.0.jar. The scan reads the mod's classes; it does not run them.