Hello,
Here is the link to the IEFT AI-PRef Wiki; this page describes vocabulary use-cases.
https://github.com/ietf-wg-aipref/drafts/wiki/Vocabulary-Use-Cases
It drafts both an opt-in and opt-out mechanism (for preferences like train=no, search=yes).
The terms "Use" and "Input of a model" are used, rather than RAG or knowledge retrieval. This sounds simpler; it is precise enough?
Opting out of "AI Overviews" is replaced by a set of Presentation use cases. AI Overviews may be framed as a mix of content from different sources, generating an answer. I added Presentation/4 to clarify the use case. Don't laugh about the recipe example, I'm French after all.
Don't forget that the whole work is presented as an expression of "preferences", not strict constraints.
Your feedback is welcome
Best regards
Laurent Le Meur