arXiv Computation and Language By Zhuosong Jiang, Chengxu Wu, Junqi Liu, Yujie Yi, Siqin Wang, Zhixuan Huang, Jinqian Jiang, Lijun Xiao, Jianxun Li, Yongyang Pan, Jieran Wang, Shiqi Shen, Fei Liu, Xinyu Lin

LegoEnv: Self-Evolving Agentic Environments via Modular Recombination

Read the original on arXiv Computation and Language →

LegoEnv introduces a new paradigm for creating agentic environments by recombining reusable atoms—intent, rule, data, and server—rather than building each environment from scratch. The system automatically evolves these atoms when an environment fails to provide reliable feedback, leading to a significant increase in solvable environments from 71.6% to 88.3% after one evolution round. Experiments on AutomationBench show that training on LegoEnv environments doubles the performance of large language models, with SFT boosting Qwen3.6-27B from 16.0% to 32.0% and RL improving Qwen3.8-27B from 37.6% to 40.3%. whyItMatters":"LegoEnv’s modular, self‑evolving approach enables scalable, generalizable environment construction that directly enhances the training and performance of LLM agents on diverse tasks."

Machine-generated by The Flow from the publisher's headline and feed description — not written or checked by a human. The full article lives at arXiv Computation and Language.

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