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This example demonstrates how to create dynamic instructions that change based on session state, allowing personalized agent behavior for different users.

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Code

dynamic_instructions.py
from agno.agent import Agent
from agno.run import RunContext

def get_instructions(run_context: RunContext):
    if not run_context.session_state:
        run_context.session_state = {}

    if run_context.session_state.get("current_user_id"):
        return f"Make the story about {run_context.session_state.get('current_user_id')}."

    return "Make the story about the user."


agent = Agent(instructions=get_instructions)
agent.print_response("Write a 2 sentence story", user_id="john.doe")

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Usage

1

Create a Python file

Create dynamic_instructions.py with the code above.
2

Set up your virtual environment

uv venv --python 3.12
source .venv/bin/activate
3

Install dependencies

uv pip install -U agno openai
4

Export your OpenAI API key

export OPENAI_API_KEY="your_openai_api_key_here"
5

Run Agent

python dynamic_instructions.py