Tool Use & Orchestration (ReAct)

Modern AI models can act as agents by using external tools (calculators, web search, APIs) to complete tasks.

ReAct Pattern

Reasoning + Acting (ReAct) is a paradigm where the model alternates between thinking and executing actions.

1. Thought: The model decides it needs more data or a specific calculation.
2. Action: The model outputs a specific tool call (e.g., JSON).
3. Observation: The system provides the tool output back to the model.
4. Final Answer: The model synthesizes the total context to respond to the user.

Implementation Tip

Always provide clear instructions on how the model should handle tool failures or ambiguous results to ensure system reliability.