@inproceedings{hao-etal-2026-hardgen,
    title = "{H}ard{G}en: Generating Hard Samples for Tool-use Agents",
    author = "Hao, Bingguang  and
      Xu, Zengzhuang  and
      Wen, Yuntao  and
      Xu, Xinyi  and
      Sun, Quanen  and
      Liu, Yang  and
      Huang, Zihao  and
      Zhao, Tong  and
      Chen, Long  and
      Wang, Dong  and
      Chen, Yicheng  and
      Wang, Maolin  and
      Peng, Cunyin  and
      Zhao, Xiangyu  and
      Zhuang, Chenyi  and
      Zhang, Ji",
    editor = "Lee, Hung-Yi  and
      Dev, Sunipa  and
      Li, Jessy  and
      Elliott, Desmond",
    booktitle = "Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing",
    month = oct,
    year = "2026",
    address = "Budapest, Hungary",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2026.emnlp-main.285/",
    pages = "6520--6546",
    ISBN = "979-8-89176-459-0"
}