Can't find any docs for the server protocol

[mangaming16]

I am interested in developing a server software for ClassiCube, but I haven't been able to find any specification of the packets that must be sent between the client and the server. I did find one for Minecraft Classic ( https://minecraft.wiki/w/Classic_server_protocol ), but no information about ClassiCube and its protocol extensions (custom blocks, block IDs over 255, etc.)

1) Is the ClassiCube protocol a perfect superset of the Minecraft Classic protocol, much like C++ is to C, such that a server written for Minecraft Classic could be joined from ClassiCube?
2) Is there any decently written documentation about the extended protocol?

[123DontMessWitMe]

You can find the Classic Protocol Extension documentation HERE
ClassiCube uses the original classic protocol and this extended protocol, and is backwards compatible.