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1

Create a Python file

reliability_single_tool.py
from typing import Optional

from agno.agent import Agent
from agno.eval.reliability import ReliabilityEval, ReliabilityResult
from agno.models.openai import OpenAIResponses
from agno.run.agent import RunOutput
from agno.tools.calculator import CalculatorTools


def factorial():
    agent = Agent(
        model=OpenAIResponses(id="gpt-5.2"),
        tools=[CalculatorTools()],
    )
    response: RunOutput = agent.run("What is 10!?")
    evaluation = ReliabilityEval(
        name="Tool Call Reliability",
        agent_response=response,
        expected_tool_calls=["factorial"],
    )
    result: Optional[ReliabilityResult] = evaluation.run(print_results=True)
    result.assert_passed()


if __name__ == "__main__":
    factorial()
2

Set up your virtual environment

uv venv --python 3.12
source .venv/bin/activate
3

Install dependencies

uv pip install -U openai agno
4

Export your OpenAI API key

  export OPENAI_API_KEY="your_openai_api_key_here"
5

Run Agent

python reliability_single_tool.py