Yes, it would be a good idea for an agent first to collect user interests, and later, when ingesting data in the RAG system, to annotate it with useful metadata

Yes, it would be a good idea for an agent first to collect user interests, and later, when ingesting data in the RAG system, to annotate it with useful metadata such as topic, summary, entities, user interest related question-answer pairs. Whatever we want to ask later better be made explicit in the text.