@inproceedings{chen-etal-2026-skill, title = "Skill or Skip? Learning Selective Skill Invocation in Agentic Tasks via Dual-Granularity Preference Learning", author = "Chen, Chishui and Lin, Jiaye and Sun, Te and Yang, Yi and Wang, Junxi and Qin, Cong and Hu, Yangen and Pan, Lu and Zeng, Ke", editor = "Lee, Hung-Yi and Dev, Sunipa and Li, Jessy and Elliott, Desmond", booktitle = "Findings of the {A}ssociation for {C}omputational {L}inguistics: {EMNLP} 2026", month = oct, year = "2026", address = "Budapest, Hungary", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2026.findings-emnlp.222/", pages = "4665--4681", ISBN = "979-8-89176-462-0" }