Yes, created by hand, lots of techniques are required to get a well running system, GoT (graph of thought) RAG (retrieval augmented generation), Ko detection, dynamic problem decomposition, and a few more techniques I have invented but dont really have names for. Its also quite a bit more complicated than the simplistic answer I gave before because you have to do things like experiments in abstraction laddering to get good interface composability.

This space is moving so quick I run many experiments every day.

I would love to work on this full time, I applied to y-combinator but I didn't get in :(