Google Open Sources Experimental Multi-Agent Orchestration Testbed Scion
Summary
Google has open-sourced Scion, an experimental multi-agent orchestration testbed described as a 'hypervisor for agents' that runs concurrent agents in containers across local and remote compute. It enables isolated agents (Gemini Code, Claude, Codex, and more) to work with individual environments while coordinating via adapters called harnesses, and demonstrates its capabilities with a game called Relics of the Athenaeum. The project emphasizes isolation over constraints and highlights ongoing work around lifecycle management and guardrails in agent orchestration.