Basic

from agno.agent.agent import Agent
from agno.models.openai import OpenAIResponses
from agno.os import AgentOS

chat_agent = Agent(
    name="Assistant",
    model=OpenAIResponses(id="gpt-5.2"),
    instructions="You are a helpful AI assistant.",
    add_datetime_to_context=True,
    markdown=True,
)

agent_os = AgentOS(
    agents=[chat_agent],
    a2a_interface=True,
)
app = agent_os.get_app()

if __name__ == "__main__":
    agent_os.serve(app="a2a_basic:app", reload=True)