First pass at a hooks definition.

[justinabrahms]

I'm explicitly not structuring this into the requirements language at first. I'd like to get some general feedback on the content before I fight with the spec parser. I also want to avoid the situation where some folks comment on the json and others on the text. :)

[toddbaert]

I can't speak for @moredip , but besides the comments I just made (which I think are already resolved and just yet to be updated) I'm good with this. Approving, assuming it's clear how to resolve those.

[moredip]

no additional concerns on my end 👍