Spyglass Astronomy Sync

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

Evidence

Ran on Kiln's test stand (2026-11-04): SpyglassAstronomySyncClient did not start: java.lang.NoClassDefFoundError: net/minecraft/server/permissions/Permission.

What it needs from Kiln

Mixin
net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource
net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Join
net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.Context
net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.PlayPayloadHandler
net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry
net.minecraft.network.codec.ByteBufCodecs
net.minecraft.network.codec.StreamCodec
net.minecraft.network.protocol.common.custom.CustomPacketPayload
net.minecraft.network.protocol.common.custom.CustomPacketPayload.Type
net.minecraft.network.protocol.common.custom.CustomPacketPayload.TypeAndCodec
net.minecraft.server.permissions.Permission
net.minecraft.server.permissions.Permission.HasCommandLevel
net.minecraft.server.permissions.PermissionLevel
net.minecraft.server.permissions.PermissionSet
FabricLoader.isModLoaded()
LocalPlayer.permissions()

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

Multiplayer support for Spyglass Astronomy

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file spyglassastronomysync-1.1.1+26.3.jar. The scan reads the mod's classes; it does not run them.

Reports from players

No reports from players yet.

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