React pattern for agent behavior

Published Oct 22, 2025 Original by Lilian Weng Shared by Prompt Ranker Source

Optimised for: GPT-4

v1.0 Oct 22, 2025 · 20:10 by Prompt Ranker

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Solve by alternating: Thought [reasoning], Action [what to do], Observation [result]. Repeat until solved.

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ReAct pattern for agent behavior