Basic State

from agno.agent import Agent
from agno.db.sqlite import SqliteDb
from agno.models.openai import OpenAIResponses
from agno.run import RunContext


def add_item(run_context: RunContext, item: str) -> str:
    """Add an item to the shopping list."""
    if run_context.session_state is None:
        run_context.session_state = {}

    run_context.session_state["shopping_list"].append(item)
    return f"The shopping list is now {run_context.session_state['shopping_list']}"


agent = Agent(
    model=OpenAIResponses(id="gpt-5.2"),
    session_state={"shopping_list": []},
    db=SqliteDb(db_file="tmp/agents.db"),
    tools=[add_item],
    instructions="Current state (shopping list) is: {shopping_list}",
    markdown=True,
)

agent.print_response("Add milk, eggs, and bread to the shopping list", stream=True)
print(f"Final session state: {agent.get_session_state()}")