@article{beyondllmbasedreasoninglightweightgnnsfo, title = {Beyond LLM-Based Reasoning: Lightweight GNNs for Agent Failure Attribution}, author = {Ting-Wei Li and Yuanchen Bei and Xiao Lin and Hanghang Tong}, year = {2026}, eprint = {2608.18575}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2608.18575}, }