ReAct: Synergizing Reasoning and Acting in Language Models, Shunyu Yao, Jeffrey Zhao, Dian Yu, Nan Du, Izhak Shafran, Karthik Narasimhan, Yuan Cao, 2023International Conference on Learning Representations (ICLR)DOI: 10.48550/arXiv.2210.03629 - Introduces the ReAct framework for LLM agents, which combines reasoning and acting steps to interact with environments and tools. This paper is foundational for understanding the agent-tool interaction loop.