How RAG Works (Retrieval-Augmented Generation) — Obsidian + Local AI: Private Second Brain

Module 2: Chatting with Your Notes — Install the Copilot plugin to build a secure, private chatbot that reads your specific vault.

What does RAG stand for in the context of AI?

Retrieval-Augmented Generation. — It retrieves data, then augments the generation.

How does RAG solve the problem of AI hallucination?

It retrieves factual information from your vault first, then uses the AI to summarize that specific data. — It grounds the AI in your specific reality.

Think of RAG like taking an open-book test. What acts as the 'open book'?

Your personal Obsidian vault. — It looks through your own notes for the answers.