I Rebuilt My JavaScript Database From Scratch for the AI Agent Era

Three years ago, I built Skalex - a simple, zero-dependency in-memory document database for JavaScript. It did what it said on the tin: documents, query them, persist them to disk. People used it. I was happy. Then everything changed. The moment I knew I had to rewrite it AI agents became real. Not just chatbots - actual agents that remember things, reason about data, and take actions. And as I started building with them, I kept running into the same wall: The database layer wasn't designed for this.