@misc{Armstrong2026margin,
  author = {Armstrong, Joss},
  title = {{MARGIN}: Runtime Confidence Calibration for Multi-Agent Foundation Model Coordination},
  year = {2026},
  eprint = {2605.22949},
  archivePrefix = {arXiv},
  primaryClass = {cs.LG},
  doi = {10.48550/arXiv.2605.22949},
  url = {https://arxiv.org/abs/2605.22949},
  note = {arXiv v4, 8 October 2026. First posted 21 May 2026}
}