I went and added AI usage metadata to my JSON-LD also added a AI usage page https://rmendes.net/ai/ and every posts on my blog have a easy to read/interpret AI usage transparency card;

I went this direction because I think, AI on blogs is not a blanket, its not ALL or nothing, it should be granular, per posts.

And just because one co-draft a tutorial or long form with an AI does not mean or equal AI generated.

I posit that this approach will be implemented in different ways but will ultimately be common in just a few months/years