AFAIK Clearskies does not have a working implementation yet.

Did you intend to link to a repository of markdown files?

I don't know anything about the project but it looks like there is a working implementation of the protocol in ruby in that linked repository (just not in the master branch).

There is also an in-progress c++ implementation of the protocol in a different repo [1].

Even so, it's pretty clear that the thing isn't ready yet and even states that it shouldn't be used for anything other than test data.

[1]https://github.com/larroy/clearskies_core