Be Careful Who You Trust: Coordination Dynamics under Corrupted Communication in LLM Multi-Agent Games
Large language models are increasingly used as interacting agents, but it remains unclear how robust their coordination is when public communication is unreliable. We study this question in iterated $N$-player Stag Hunt games played by homogeneous LLM groups under controlled programmatic action inversion, which changes both the public transcript and the actions used for execution. Across an experimental grid spanning group sizes, coordination thresholds, corruption levels, and seven LLMs, we observe three main patterns. First, honest agents' pre-flip Stag choices decline as corruption increases, but the sharp fall in public success is primarily mechanical. In the focal $N=5,M=3$ setting, ...
| Authors | Xuanyi Liu, Niall Dalton, Hairi Amin et al. |
|---|---|
| Primary category | cs.MA |
| Published | 19 September 2026 |
| Last updated at source | 19 September 2026 |
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