What is tracked via Munchkin?

Good day! I'm trying to understand Munchkin tracking code. I understand it allows us to track email clicks and web page visits. However, I can't locate an explicit list of what Munchkin tracks in the Marketo product docs. Does Munchkin track webpage clicks, visits, and social media sharing/clicks, etc.? Does Munchkin play a role in social sharing via Marketo? Any help on what Munchkin tracks would be great, thank you!

-Hunter