Harness-MU proposes a safe, governed harness for multi-user LLM agents

arXiv·low signal

Harness-MU (arXiv 2606.21856) targets the multi-user agent setting — where one agent serves or mediates between multiple users — proposing a harness with safety and governance controls to keep such deployments effective without cross-user leakage or unsafe actions. It reflects growing attention to the operational (not just modeling) side of shipping shared agents. For builders running an agent that touches multiple users' data, it's a reminder that isolation and governance are harness-level concerns, echoing the same shadow-AI identity theme enterprises are grappling with.