Asynchronous Reliability Evaluation

Score a factorial tool call using ReliabilityEval.arun() driven by asyncio.run.

Demonstrates running reliability checks with asynchronous evaluation.

reliability_async.py
"""
Asynchronous Reliability Evaluation
==================================

Demonstrates running reliability checks with asynchronous evaluation.
"""

import asyncio
from typing import Optional

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


# ---------------------------------------------------------------------------
# Create Evaluation Function
# ---------------------------------------------------------------------------
def factorial():
    agent = Agent(
        model=OpenAIChat(id="gpt-5.2"),
        tools=[CalculatorTools()],
    )
    response: RunOutput = agent.run("What is 10!?")
    evaluation = ReliabilityEval(
        agent_response=response,
        expected_tool_calls=["factorial"],
    )

    # Run the evaluation calling the arun method.
    result: Optional[ReliabilityResult] = asyncio.run(
        evaluation.arun(print_results=True)
    )
    if result:
        result.assert_passed()


# ---------------------------------------------------------------------------
# Run Evaluation
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    factorial()

Run the Example

Set up your virtual environment

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

Install dependencies

uv pip install -U agno openai

Export your OpenAI API key

export OPENAI_API_KEY="your_openai_api_key_here"

Run the example

Save the code above as reliability_async.py, then run:

python reliability_async.py

Full source: cookbook/09_evals/reliability/reliability_async.py