Microsoft Agent Framework Core

import asyncio
import os
from agent_framework import Agent
from agent_framework.openai import OpenAIChatClient

async def main():
    # Ensure OPENAI_API_KEY environment variable is set
    # For Azure OpenAI, set AZURE_OPENAI_ENDPOINT and AZURE_OPENAI_DEPLOYMENT_NAME
    openai_api_key = os.environ.get("OPENAI_API_KEY", "YOUR_OPENAI_API_KEY_HERE")

    if not openai_api_key or openai_api_key == "YOUR_OPENAI_API_KEY_HERE":
        print("Please set the OPENAI_API_KEY environment variable or replace the placeholder.")
        return

    try:
        client = OpenAIChatClient(api_key=openai_api_key)
        agent = Agent(
            client=client,
            name="HelloAgent",
            instructions="You are a friendly assistant that writes haikus about nature."
        )
        print("\n--- Running Agent ---")
        result = await agent.run("Write a haiku about a blooming spring flower.")
        print(f"Agent Response: {result}")

    except Exception as e:
        print(f"An error occurred: {e}")
        print("Ensure your API key is valid and required environment variables are set for the chosen client.")

if __name__ == "__main__":
    asyncio.run(main())