ReAct Pattern

Master the ReAct pattern to build intelligent agents that synergize reasoning and acting

Understanding the Loop

The ReAct loop is the heart of the pattern. Instead of reasoning once and acting once, agents continuously cycle through:

💭

Thought

Reason about the current state and plan next action

Action

Execute the planned operation

👁️

Observation

Receive results and feedback

🔄

Repeat

Loop back to Thought with new information

This loop continues until the task is complete, an error occurs, or a maximum iteration limit is reached. Each cycle builds on previous observations, enabling adaptive and robust behavior.

Interactive: Loop Simulator

Watch agents think, act, and observe in real-time scenarios

Execution Trace

Step 0 / 7

Press Play to start the simulation

Why the Loop Is Powerful

🎯
Adaptive
Agents can change strategy mid-task based on observations
🛡️
Robust
Can recover from errors and unexpected results by replanning
📈
Progressive
Each cycle builds on previous knowledge, moving closer to the goal
🔍
Transparent
Every decision is explicitly reasoned and traceable