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Function Tools Workflow
This sample demonstrates an agent with function tools responding to user queries about a restaurant menu.
Overview
The workflow showcases:
- Function Tools: Agent equipped with tools to query menu data
- Real Foundry-backed agent: Uses
FoundryChatClientto create an agent with tools - Agent Registration: Shows how to register agents with the
WorkflowFactory
Tools
The MenuAgent has access to these function tools:
| Tool | Description |
|---|---|
get_menu() |
Returns all menu items with category, name, and price |
get_specials() |
Returns today's special items |
get_item_price(name) |
Returns the price of a specific item |
Menu Data
Soups:
- Clam Chowder - $4.95 (Special)
- Tomato Soup - $4.95
Salads:
- Cobb Salad - $9.99
- House Salad - $4.95
Drinks:
- Chai Tea - $2.95 (Special)
- Soda - $1.95
Prerequisites
- Microsoft Foundry configured with required environment variables
- Authentication via azure-identity (run
az loginbefore executing)
Usage
python main.py
Example Output
Loaded workflow: function-tools-workflow
============================================================
Restaurant Menu Assistant
============================================================
[Bot]: Welcome to the Restaurant Menu Assistant!
[Bot]: Today's soup special is the Clam Chowder for $4.95!
============================================================
Session Complete
============================================================
How It Works
- Create a Foundry chat client
- Create an agent with instructions and function tools
- Register the agent with the workflow factory
- Load the workflow YAML and run it with
run()andstream=True
# Create the agent with tools
client = FoundryChatClient(
project_endpoint=os.environ["FOUNDRY_PROJECT_ENDPOINT"],
model=os.environ["FOUNDRY_MODEL"],
credential=AzureCliCredential(),
)
menu_agent = client.as_agent(
name="MenuAgent",
instructions="You are a helpful restaurant menu assistant...",
tools=[get_menu, get_specials, get_item_price],
)
# Register with the workflow factory
factory = WorkflowFactory(execution_mode="graph")
factory.register_agent("MenuAgent", menu_agent)
# Load and run the workflow
workflow = factory.create_workflow_from_yaml_path(workflow_path)
async for event in workflow.run(inputs={"userInput": "What is the soup of the day?"}, stream=True):
...