titleDAR: Deontic Reasoning with Agentic Harnesses
authorsGuangyao Dou, William Jurayj, Nils Holzenberger, Benjamin Van Durme
date2026-06-03
venuearXiv (preprint, not peer reviewed)
idarXiv:2606.05009
affiliationCenter for Language and Speech Processing @ JHU
upvotes6 (Hugging Face Daily Papers, 2026-11-01)
linksabs pdf hf code
abstractDeontic reasoning is the task of answering questions by applying explicit rules and policies to case-specific facts, for example computing tax liability under a statute or determining the outcome of an immigration appeal. A key technical challenge for LLM-based deontic reasoning is that the relevant ruleset can be long and cross-referenced, so models may still fail to locate the rules needed for a particular reasoning step. We introduce Deontic Agentic Reasoning (DAR), an agentic reasoning setup in which the model interacts with the statutes on demand. We evaluate DAR under multiple harnesses on hard subsets of DeonticBench. Across these settings, we find that agentic harnesses can push the frontier on deontic reasoning tasks, but improvements are not uniform: weaker models often degrade on numerical tasks while consuming far more tokens.

cite

@misc{dou2026dar,
  title={DAR: Deontic Reasoning with Agentic Harnesses},
  author={Guangyao Dou and William Jurayj and Nils Holzenberger and Benjamin Van Durme},
  year={2026},
  eprint={2606.05009},
  archivePrefix={arXiv},
  url={https://arxiv.org/abs/2606.05009}
}