I am a beginner who has just started playing around with GSD. I used to focus on using things others had made, but I realized that I need to understand the principles of md files and know how to create them myself to make something optimized (saving tokens) that fits my style and purpose. In particular, I was struggling with how to handle the AI when it would overwrite previously set functions while adding new ones, and this class gave me a great hint through the concept of Handoff.