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vercel-labs/open-agents

An open-source reference application and framework for building and running durable, cloud-based AI coding agents with integrated sandbox execution and GitHub workflow.

Core Features

Chat-driven coding agent with file, search, shell, task, skill, and web tools.

Durable multi-step execution with Workflow SDK, streaming, and cancellation.

Isolated Vercel sandboxes with snapshot-based resume for code execution.

Integrated GitHub features: repo cloning, branch work, auto-commit, push, and PR creation.

Architectural separation of agent logic from sandbox execution for flexibility and scalability.

Detailed Introduction

Open Agents is an open-source reference application designed to facilitate the creation and deployment of background coding agents on Vercel. It employs a three-layer architecture: a web UI for interaction, an agent workflow for durable execution, and an isolated sandbox VM for code execution. A key design principle is the separation of the agent from the sandbox, allowing independent lifecycle management, flexible model/provider choices, and ensuring the VM remains a pure execution environment. This framework enables developers to build sophisticated AI agents capable of generating and applying code changes directly to GitHub repositories.