react

Definition

Names ReAct, a prompting pattern that interleaves reasoning traces with actions: the model writes a thought, takes an action such as a search or a tool call, reads the observation, and repeats. Grounding each step in external feedback lets it correct factual drift that pure chain-of-thought cannot catch, and the trace makes its behaviour inspectable. Unrelated to the JavaScript UI library of the same name.

Explainers using this term

• Distilling Agents — How to Compress a Long TrajectoryReAct: Synergizing Reasoning and Acting in Language Models
• Build Your Own Agent Loop — The Minimal Shape of Tool CallingReAct: Synergizing Reasoning and Acting in Language Models
• LLM Agents from Scratch — Designing the Tool-Use LoopReAct: Synergizing Reasoning and Acting in Language Models