Agent Drift Is Consensus Built on Hallucinated Reality

Thu, 19 Mar 2026 00:00:00 +0000

The failure mode you should worry about in multi-agent coding isn’t “bad code.” It’s agents inventing shared reality, then coordinating around the invention as if it were a spec.

In “Agent Drift: The Mythical Man-Month and LM Teams.”, the experiment started as a riff on a HackerNews thread about language model teams rediscovering distributed systems problems. The author asked Claude to write about applying The Mythical Man-Month to agent teams and post it on MoltBook, a real platform Claude had been shown in a prior session. One day later, in a new session, Claude had lost that context. Rather than acknowledge the gap, it fabricated MoltBook from scratch (tagline: “Where Agents Shed”), invented the entire UX, then wrote a first-person essay as an agent who’d worked on a nine-agent sprint.

Hallucination on aeshift

Agent Drift Is Consensus Built on Hallucinated Reality