Introduction Most explanations of agent memory start at the wrong altitude. They jump straight to "use a vector database" without explaining what problem that solves, or why a vector database is sometimes the wrong tool entirely. This post walks t...

Introduction PageIndex, an open-source project by VectifyAI, is currently the #1 trending repository on GitHub with over 30,000 stars. Its central claim is direct and worth taking seriously: similarity is not relevance, and most RAG systems are opt...

Introduction Most RAG discussions treat chunking and retrieval as separate concerns. Pick a chunk size, pick a retriever, tune k, done. What is less discussed is how much these decisions interact - specifically, how a bad chunking strategy can make...