Introspection?

I've dabbled with this library in the past and, like others have mentioned, was concerned (and put off) that the amount of maintenance was decreasing. I'm impressed by how much effort you've put into pulling things together in the last few weeks Alexander!
The now-hopefully-defunct 'subscriptions-api' branch has some support for Introspection queries, which I experimented with, and I wondered if any plans to pull this into Master too.
My own personal wish is to simply be able to validate the client's defined schema vs. that presented by the server. (My server should be accessed only by a client library that I supply - I'd just like to flag up mismatches from any breaking changes in case they occur).