Would love to hear more about your thought about the RAG.

I think RAG is a mostly outdated concept now, it's been subsumed by the idea of a "agent harness" which is exactly what Claude Code and Claude Cowork and OpenAI Codex and Claude.ai and ChatGPT themselves have now become.

An agent harness with access to a good search tool is a much more interesting thing than 2024-era RAG systems.