[Advent of Agents] Day 27: Scion: an open testbed for agent orchestration

[abraha...@google.com]

Hi everyone,

Day 27 of Google's Advent of Agents — Season 2 is now live! 🌸

Scale your agentic workflows with Scion, a containerized orchestration platform that isolates LLM agents in dedicated git worktrees and environments. This open-source testbed simplifies running concurrent, specialized agents for complex tasks like parallel coding, research, and auditing.

Today's Highlights:

• Isolated execution using OCI containers and independent Git worktrees to prevent cross-contamination during concurrent multi-agent tasks.
• Unified harness abstraction providing a consistent CLI (start, stop, attach) across Gemini, Claude Code, and OpenAI models.
• Flexible runtime architecture that scales seamlessly from a single laptop using Docker to production clusters via Kubernetes.

👉 View Day 27 Drop Here

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Happy building!
The Advent of Agents Team

© 2026 Google Cloud · Season 2 · Spring Edition