Contree

Contree is a code execution runtime, purpose-built to support research on SWE agents, providing reproducible, versioned filesystem state

Contents:

• Contree
• Contree SDK
  • Quick Start
  • What’s Next?
• Mini-SWE-Agent Integration
  • Using ContreeEnvironment
  • Running with SWE-bench

Key Features

• 🧬 Automatic container state versioning & branching - Each command execution creates a new version of the container state

• 🔒 Secure remote execution - Run untrusted code safely without managing infrastructure

• 🚀 Thousands of pre-built SWE images - Ready-to-use images for SWE-bench and SWE-rebench

Use Cases

While Contree is purpose-built to support research on SWE agents, it’s just as usable as a general code execution sandbox.

Primary use case:

• SWE-bench and SWE-rebench evaluations

• Software engineering agent research and development

Also suitable for:

• General LLM agents requiring code execution

• AI-powered development tools

• Any scenario requiring isolated, reproducible code execution

Python SDK

Get started with the Contree Python SDK:

Python SDK Documentation →

The Python SDK provides both async and sync APIs for working with Contree containers, including image management, command execution, and state versioning.