Agents Don't Need Memory, They Need Documentation

Memory plugins for AI agents rely on RAG to retrieve snippets from past conversations, but this approach fails because it lacks context, treats outdated information as truth, and is unauditable. The author argues that agents need structured documentation instead—a Markdown brain they consult before work and update after. He built Operator Memory, an open-source plugin that replaces vector databases with plain files, and has used it for over a year.