@misc{luo2026heraharnessenvironmentcoevolutionreliable,
      title={HERA: Harness-Environment Co-Evolution for Reliable Agentic Abstention},
      author={Han Luo and Bingbing Wen and Guang Yang and Zora Zhiruo Wang and Pan Lu and Lucy Lu Wang},
      year={2026},
      eprint={2610.06563},
      archivePrefix={arXiv},
      primaryClass={cs.AI},
      url={https://arxiv.org/abs/2610.06563},
}