Vercel Open Agents

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Open Agents is an open-source template for building cloud-based coding agents that run as durable workflows on Vercel. It provides web UI, agent runtime, sandbox orchestration, and GitHub integration to execute multi-step coding tasks without local execution.

Architecture

Open Agents uses a three-layer architecture:

Web App (Next.js) → Agent Workflow (Vercel Workflow SDK) → Sandbox VM (isolated execution)

Key principle: The agent runs outside the sandbox and interacts with it through tools. This separation enables:

• Durable execution beyond single request lifecycles
• Independent sandbox hibernation and resume
• Flexible model/provider swapping
• Clean separation of concerns