Agentic Drift: It's Hard to Be Multiple Developers at Once

I've been running multiple AI coding agents in parallel — five, six, sometimes eight workspaces at once, each tackling a different feature or fix on the same codebase. It's productive in bursts. You feel like you've hired a small team. Then you stop and look at what you've actually produced, and things get weird. One agent added dynamic model discovery. Another agent, solving a different problem in a different workspace, also added dynamic model discovery — a slightly different version with a different class name. A third agent needed model listing as part of its feature, saw neither of the other two, and inlined its own implementation. I now had three versions of the same concept across three branches, none of which knew about the others. This is what I'm calling agentic drift : the gradual, invisible divergence that happens when parallel autonomous agents work on related parts of a codebase without coordination. It's not a merge conflict in the git sense — your files might merge clea