@article{vistaaversatileinteractiveusersimulation,
  title = {VISTA: A Versatile Interactive User Simulation Toolkit for Agent Evaluation},
  author = {Yunan Lu and Ryan Shea and Yusen Zhang and Zhou Yu},
  year = {2026},
  eprint = {2606.11079},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.11079},
}