Can you provide some references to what you’re talking about

Sure, https://iabtechlab.com/standards/openrtb/

There's a standardized, normal (in adtech) approach to building 'creative's (viewed/seen ads) around context-dependent scenarios. It's not hard to extend existing IAB primitives to include things like context-enrichment (system prompt augmentation in this case) or whatever. I don't want to malign my downvoters but suspect they're mad I'm pointing it out, rather than engaging with facts as they are. It's trivial for ads to interact with your(our!) AI usage.