@article{effiskillagentskillbasedautomatedcodeeff,
  title = {EffiSkill: Agent Skill Based Automated Code Efficiency Optimization},
  author = {Zimu Wang and Yuling Shi and Mengfan Li and Zijun Liu and Jie M. Zhang and Chengcheng Wan and Xiaodong Gu},
  year = {2026},
  eprint = {2603.27850},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2603.27850},
}