Tool use — letting Claude call your functions — AI Engineering with Python

← Courses›AI Engineering with PythonModule 1 · LLM API Fundamentals›Tool use — letting Claude call your functionsquiz7 / 101

Task

📝 **Question:** What happens when Claude decides to use a tool you've defined?

💡 Anthropic never executes your Python — you do.

The tool-use loop

Anatomy of a message

System prompts that control behavior

Prerequisites — what you should know before this track

Why pandas?

🎯 Quiz

Question

📝 **Question:** What happens when Claude decides to use a tool you've defined?

💡 Anthropic never executes your Python — you do.

💬 Discussion