Using User-Selected Sources in Context for AI Answers

Currently, AI tools don’t let me collect and provide my own set of sources as context for interactions and research.

It limits control and transparency—AI may use irrelevant or untrustworthy materials, and I cannot direct it to rely only on what I consider important.

Suggest a solution
Allow users to manually select, save, and organize sources (links, PDFs, papers) as context, then instruct the AI to answer questions, write articles, or conduct research specifically based on those curated sources.