Replied to https://twitter.com/mterenzio/status/1470068458738135052 by Matt (Twitter)

I don't know. I get lost in a lot of those specs. I made a point to say it wasn't bad

Send webmention, make POST request with parameters source and target. Receive webmention, verify source links to target and decide how to display. Specs often make things sound more technical than they are.