

In our last deep dive , we took a significant step: building our very first MCP Toolbox server to query static data, like Google Cloud release notes. That was powerful, showing how to get an agent connected and retrieving information based on a predefined SQL query.
Check out the video.
But what if you need more? What if you want your AI agent to answer any question about your data, dynamically generating complex SQL queries on the fly, without you having to write a single line of database code for each new question?
That’s the true power of the MCP Toolbox, and it’s what we’re unlocking in this next lesson.
Most business questions aren’t static. A sales manager might ask:
- “What were our total sales yesterday?”
- Then, “Which store had the highest revenue today?”
- Then, “Show me the top 3 selling products in that store this week.”
Expecting an AI to answer such a nuanced, evolving conversation with a fixed set of pre-written SQL queries is like bringing a knife to a gunfight. You need a tool that can adapt.
This is where the kind: bigquery tool in the MCP Toolbox shines. Instead of giving the agent a fixed SQL statement, you give it the ability to construct its own.
Check out the latest video.
Imagine: you point your AI agent to a brand new BigQuery table it’s never seen before. You ask it a question in natural language. And the agent intelligently writes the precise SQL query needed to get your answer.
This is not magic; it’s the result of carefully designed models and, crucially, the power of the MCP Toolbox’s bigquery tool type combined with a well-crafted description in your tools.yaml file. That description acts as a highly effective guide, teaching the AI how to access and use your data on the fly.
In Video 5 of my course, I walk you through what I call the 5-minute build. We’ll take a completely new dataset — a simple customers table — and, in just a few quick steps, enable our AI agent to query it dynamically.
You’ll see:
- The essential difference between kind: bigquery (which empowers dynamic SQL generation) and kind: bigquery-sql (for static queries).
- How to configure your tools.yaml to unleash this dynamic capability.
- A live, step-by-step demonstration of connecting a new BigQuery table and immediately asking natural language questions that the agent translates into precise SQL queries.
This video is your quick-start guide to making your AI agents truly flexible, data-aware, and ready for any business question you throw at them.
This lesson is a pivotal step in building powerful, intelligent AI agents for real-world applications. If you’re ready to see your AI write its own SQL and transform into a truly dynamic data co-pilot, then this video is for you.
[Watch Video 5: MCP Toolbox for Databases: The Quick Start to Dynamic Agents]
And if you need to catch up, you can find the previous lessons and the full course blueprint here:
🔗 Watch Video 4: Build Your First MCP Server — Query Google Cloud Release Notes
🔗 Access the Course GitHub Repository Here
Source Credit: https://medium.com/google-cloud/the-quick-start-to-dynamic-ai-agents-mcp-toolbox-for-databases-course-b768ed4464fe?source=rss—-e52cf94d98af—4