RAG is great, until it isn't. Our assistant could only retrieve chunks of text that matched a query. If the answer lived across multiple pages, or the user needed exact syntax that didn't land in a top-K result, it was stuck. We wanted it to explore docs the way you'd explore a codebase. Agents are converging on filesystems as their primary interface because grep, cat, ls, and find are all an agent needs. If each doc page is a file and each section is a directory, the agent can search for exact ...