SWE-World: Building Software Engineering Agents in Docker-Free Environments

Fuente: arXiv
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Main Authors: Sun, Shuang, Song, Huatong, Huang, Lisheng, Jiang, Jinhao, Le, Ran, Lv, Zhihao, Chen, Zongchao, Hu, Yiwen, Luo, Wenyang, Zhao, Wayne Xin, Song, Yang, Xu, Hongteng, Zhang, Tao, Wen, Ji-Rong
Format: Preprint
Published: 2026
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author Sun, Shuang
Song, Huatong
Huang, Lisheng
Jiang, Jinhao
Le, Ran
Lv, Zhihao
Chen, Zongchao
Hu, Yiwen
Luo, Wenyang
Zhao, Wayne Xin
Song, Yang
Xu, Hongteng
Zhang, Tao
Wen, Ji-Rong
author_facet Sun, Shuang
Song, Huatong
Huang, Lisheng
Jiang, Jinhao
Le, Ran
Lv, Zhihao
Chen, Zongchao
Hu, Yiwen
Luo, Wenyang
Zhao, Wayne Xin
Song, Yang
Xu, Hongteng
Zhang, Tao
Wen, Ji-Rong
contents Recent advances in large language models (LLMs) have enabled software engineering agents to tackle complex code modification tasks. Most existing approaches rely on execution feedback from containerized environments, which require dependency-complete setup and physical execution of programs and tests. While effective, this paradigm is resource-intensive and difficult to maintain, substantially complicating agent training and limiting scalability. We propose SWE-World, a Docker-free framework that replaces physical execution environments with a learned surrogate for training and evaluating software engineering agents. SWE-World leverages LLM-based models trained on real agent-environment interaction data to predict intermediate execution outcomes and final test feedback, enabling agents to learn without interacting with physical containerized environments. This design preserves the standard agent-environment interaction loop while eliminating the need for costly environment construction and maintenance during agent optimization and evaluation. Furthermore, because SWE-World can simulate the final evaluation outcomes of candidate trajectories without real submission, it enables selecting the best solution among multiple test-time attempts, thereby facilitating effective test-time scaling (TTS) in software engineering tasks. Experiments on SWE-bench Verified demonstrate that SWE-World raises Qwen2.5-Coder-32B from 6.2\% to 52.0\% via Docker-free SFT, 55.0\% with Docker-free RL, and 68.2\% with further TTS. The code is available at https://github.com/RUCAIBox/SWE-World
format Preprint
id arxiv_https___arxiv_org_abs_2602_03419
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle SWE-World: Building Software Engineering Agents in Docker-Free Environments
Sun, Shuang
Song, Huatong
Huang, Lisheng
Jiang, Jinhao
Le, Ran
Lv, Zhihao
Chen, Zongchao
Hu, Yiwen
Luo, Wenyang
Zhao, Wayne Xin
Song, Yang
Xu, Hongteng
Zhang, Tao
Wen, Ji-Rong
Software Engineering
Computation and Language
Recent advances in large language models (LLMs) have enabled software engineering agents to tackle complex code modification tasks. Most existing approaches rely on execution feedback from containerized environments, which require dependency-complete setup and physical execution of programs and tests. While effective, this paradigm is resource-intensive and difficult to maintain, substantially complicating agent training and limiting scalability. We propose SWE-World, a Docker-free framework that replaces physical execution environments with a learned surrogate for training and evaluating software engineering agents. SWE-World leverages LLM-based models trained on real agent-environment interaction data to predict intermediate execution outcomes and final test feedback, enabling agents to learn without interacting with physical containerized environments. This design preserves the standard agent-environment interaction loop while eliminating the need for costly environment construction and maintenance during agent optimization and evaluation. Furthermore, because SWE-World can simulate the final evaluation outcomes of candidate trajectories without real submission, it enables selecting the best solution among multiple test-time attempts, thereby facilitating effective test-time scaling (TTS) in software engineering tasks. Experiments on SWE-bench Verified demonstrate that SWE-World raises Qwen2.5-Coder-32B from 6.2\% to 52.0\% via Docker-free SFT, 55.0\% with Docker-free RL, and 68.2\% with further TTS. The code is available at https://github.com/RUCAIBox/SWE-World
title SWE-World: Building Software Engineering Agents in Docker-Free Environments
topic Software Engineering
Computation and Language
url https://arxiv.org/abs/2602.03419