> ## Documentation Index
> Fetch the complete documentation index at: https://phidatainc-agui.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Advanced State

This example demonstrates advanced session state management with multiple tools for managing a shopping list, including add, remove, and list operations.

<Steps>
  <Step title="Create a Python file">
    ```python session_state_advanced.py theme={null}
    from textwrap import dedent

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


    # Define tools to manage our shopping list
    def add_item(run_context: RunContext, item: str) -> str:
        """Add an item to the shopping list and return confirmation."""
        if not run_context.session_state:
            run_context.session_state = {}

        # Add the item if it's not already in the list
        if item.lower() not in [i.lower() for i in run_context.session_state["shopping_list"]]:
            run_context.session_state["shopping_list"].append(item)  # type: ignore
            return f"Added '{item}' to the shopping list"
        else:
            return f"'{item}' is already in the shopping list"


    def remove_item(run_context: RunContext, item: str) -> str:
        """Remove an item from the shopping list by name."""
        if not run_context.session_state:
            run_context.session_state = {}

        # Case-insensitive search
        for i, list_item in enumerate(run_context.session_state["shopping_list"]):
            if list_item.lower() == item.lower():
                run_context.session_state["shopping_list"].pop(i)
                return f"Removed '{list_item}' from the shopping list"

        return f"'{item}' was not found in the shopping list"


    def list_items(run_context: RunContext) -> str:
        """List all items in the shopping list."""
        if not run_context.session_state:
            run_context.session_state = {}

        shopping_list = run_context.session_state["shopping_list"]

        if not shopping_list:
            return "The shopping list is empty."

        items_text = "\n".join([f"- {item}" for item in shopping_list])
        return f"Current shopping list:\n{items_text}"


    # Create a Shopping List Manager Agent that maintains state
    agent = Agent(
        model=OpenAIResponses(id="gpt-5.2"),
        # Initialize the session state with an empty shopping list (default session state for all sessions)
        session_state={"shopping_list": []},
        db=SqliteDb(db_file="tmp/example.db"),
        tools=[add_item, remove_item, list_items],
        # You can use variables from the session state in the instructions
        instructions=dedent("""\
            Your job is to manage a shopping list.

            The shopping list starts empty. You can add items, remove items by name, and list all items.

            Current shopping list: {shopping_list}
        """),
        markdown=True,
    )

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

    agent.print_response("I got bread", stream=True)
    print(f"Session state: {agent.get_session_state()}")

    agent.print_response("I need apples and oranges", stream=True)
    print(f"Session state: {agent.get_session_state()}")

    agent.print_response("whats on my list?", stream=True)
    print(f"Session state: {agent.get_session_state()}")

    agent.print_response(
        "Clear everything from my list and start over with just bananas and yogurt",
        stream=True,
    )
    print(f"Session state: {agent.get_session_state()}")
    ```
  </Step>

  <Snippet file="create-venv-step.mdx" />

  <Step title="Install dependencies">
    ```bash theme={null}
    uv pip install -U agno openai
    ```
  </Step>

  <Step title="Export your OpenAI API key">
    <Snippet file="set-openai-key.mdx" />
  </Step>

  <Step title="Run Agent">
    ```bash theme={null}
    python session_state_advanced.py
    ```
  </Step>
</Steps>