An assistant must tell a user the current status of a specific shipment. Shipment states change frequently, and the approved source is a protected tracking API. Which design best supplies current information?

1. Ask the model to cite the API without actually invoking it.
2. Fine-tune the model on last month shipment states and assume they remain current.
3. Give the agent an authorized tracking tool that reads the current shipment state and use the returned result in its response.
4. Increase temperature until the generated status sounds plausible.