SWE-MiniSandbox: Container-Free Reinforcement Learning for Building Software Engineering Agents

Researchers introduced SWE-MiniSandbox, a container-free method for training software engineering AI agents using reinforcement learning that reduces disk usage to 5% and environment setup time to 25% of traditional container-based approaches. The system uses kernel-level isolation and lightweight pre-caching instead of bulky container images while maintaining comparable performance.