Lesson 5 needs a free account
The first 3 lessons of every track are open to everyone. From here on Yanjye has to remember where you stopped, mark your exam and put your name on the certificate — so it needs to know who you are.
This lesson: Define a tool, handle a tool_use response, and return a result correctly.
- Free — the lessons and the exam never cost anything
- Your progress is saved across every device
- Pass the exam and earn a certificate anyone can verify
Or go back to Building AI applications with Python and finish the free lessons first.