You've already got park lookup working—now you'll take the next step and make the theme park agent genuinely helpful. In this lesson, you'll add a new capability that pulls a live snapshot of what's happening in a park right now.

You'll create a tool that accepts a park ID and returns a curated list of attractions with key fields like location/land, open status, and current posted wait time. You'll also ensure the results are sorted so the shortest waits rise to the top, making the output immediately usable for recommendations.

This matters because live park conditions change quickly, and the agent needs fresh, structured data to plan a realistic route through the day. You'll also wire the tool into the agent and test the full "lookup → live snapshot" chain inside Mastra Studio, so the agent consistently calls the right tool at the right time.

"Wait times change fast—so always return when you fetched the data. That timestamp makes the snapshot trustworthy."

— Guil Hernandez

Mentioned in the Lesson

Code:

• Course GitHub repo

Relevant Mastra docs:

• Using Tools
• createTool()
• Structured Output

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Ask questions:

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• Guil on LinkedIn — ask him questions directly

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