Implementing multiple turns

🧠 Key Concepts: Implementing Multi-Turn Tool Calling

🎯 Core Mechanism

• Goal: The system manages a continuous loop (run_conversation) to allow Claude to interact with external tools until a final, non-tool-based response is generated.
• Tool Detection: Tool use is identified by checking the stop_reason field in Claude's response message. If the stop_reason is "tool_use", the system must execute tools.
• Loop Termination: The conversation loop breaks only when Claude provides a response where the stop_reason is not "tool_use".

⚙️ Conversation Flow (run_conversation)

• Orchestration: This function manages the entire interaction cycle between the user, Claude, and the tools.
• Process:
• Call Claude with the current message history and available tools.
• Check the response's stop_reason.
• If "tool_use", call the run_tools function.
• Add the tool results to the conversation history.
• Repeat the loop until a final response is received.

🛠️ Tool Execution (run_tools and run_tool)

• Scalability: Tool execution was refactored using a helper function, run_tool, which centralizes the logic for running a specific tool based on its name and input.
• Handling Multiple Tools: The run_tools function is designed to process and execute all tool requests contained within a single message from Claude.
• Tool Result Handling: The results returned by run_tools are added back into the conversation history, allowing Claude to use that information in its subsequent turn.

🔄 Multi-Turn Cycle Summary

The complete workflow demonstrates a multi-turn tool calling cycle: User Query → Claude Response (Tool Use) → Tool Execution → Tool Result → Claude Final Response.

Takeaways

• The system uses a continuous loop (run_conversation) to manage the multi-turn interaction between the user, Claude, and external tools.
• Tool use is identified by checking if the stop_reason field in Claude's response message is "tool_use".
• The conversation loop terminates only when Claude generates a response where the stop_reason is not "tool_use".
• The run_tools function is designed to process and execute all tool requests contained within a single message from Claude.
• Tool results are added back into the conversation history, allowing Claude to utilize that information in its subsequent turn.