Basic Slack Agent

Minimal Slack bot that responds only when mentioned in a channel.

Minimal Slack bot that responds only when mentioned in a channel. Uses SQLite for session persistence so the agent remembers conversation history across restarts.

basic.py

"""
Basic Slack Agent
=================

Minimal Slack bot that responds only when mentioned in a channel.
Uses SQLite for session persistence so the agent remembers conversation
history across restarts.

Key concepts:
  - ``reply_to_mentions_only=True`` ignores DMs and only responds to @mentions.
  - ``add_history_to_context=True`` feeds the last N runs back into the prompt.

Slack scopes: app_mentions:read, assistant:write, chat:write, im:history
"""

from agno.agent import Agent
from agno.db.sqlite.sqlite import SqliteDb
from agno.models.openai import OpenAIChat
from agno.os.app import AgentOS
from agno.os.interfaces.slack import Slack

# ---------------------------------------------------------------------------
# Create Example
# ---------------------------------------------------------------------------

agent_db = SqliteDb(session_table="agent_sessions", db_file="tmp/persistent_memory.db")

basic_agent = Agent(
    name="Basic Agent",
    model=OpenAIChat(id="gpt-4o"),
    db=agent_db,
    add_history_to_context=True,
    num_history_runs=3,
    add_datetime_to_context=True,
)

# Setup our AgentOS app
agent_os = AgentOS(
    agents=[basic_agent],
    interfaces=[
        Slack(
            agent=basic_agent,
            reply_to_mentions_only=True,  # The Agent will react only to messages mentioning it
        )
    ],
)
app = agent_os.get_app()


# ---------------------------------------------------------------------------
# Run Example
# ---------------------------------------------------------------------------

if __name__ == "__main__":
    """Run your AgentOS.

    You can see the configuration and available apps at:
    http://localhost:7777/config

    """
    agent_os.serve(app="basic:app", reload=True)

Run the Example

1. Set up your virtual environment

   Mac

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

   uv venv --python 3.12
   .venv\Scripts\activate
   
2. Install dependencies

   uv pip install -U "agno[os,slack]" openai
   
3. Export environment variables

   Mac/Linux

   export OPENAI_API_KEY="your_openai_api_key_here"
   export SLACK_SIGNING_SECRET="your_slack_signing_secret_here"
   export SLACK_TOKEN="your_slack_token_here"
   

   $Env:OPENAI_API_KEY="your_openai_api_key_here"
   $Env:SLACK_SIGNING_SECRET="your_slack_signing_secret_here"
   $Env:SLACK_TOKEN="your_slack_token_here"
   
4. Configure Slack

   Complete Slack setup: create and install the app, expose the server through public HTTPS, and add the scopes listed in the example. The default event request URL is <public-url>/slack/events; HITL examples also use <public-url>/slack/interactions for interactivity. Use any custom prefix shown in the example instead of /slack.

5. Run the example

   Save the code above as basic.py, then run:

   python basic.py
   

Full source: cookbook/05_agent_os/17_slack/basic.py