Skip to main content
"""
Cache Tool Calls
=============================

Demonstrates cache tool calls.
"""

import json

import httpx
from agno.agent import Agent
from agno.tools import tool

# ---------------------------------------------------------------------------
# Create Agent
# ---------------------------------------------------------------------------


@tool(stop_after_tool_call=True, cache_results=True)
def get_top_hackernews_stories(num_stories: int = 5) -> str:
    # Fetch top story IDs
    response = httpx.get("https://hacker-news.firebaseio.com/v0/topstories.json")
    story_ids = response.json()

    # Yield story details
    stories = []
    for story_id in story_ids[:num_stories]:
        story_response = httpx.get(
            f"https://hacker-news.firebaseio.com/v0/item/{story_id}.json"
        )
        story = story_response.json()
        if "text" in story:
            story.pop("text", None)
        stories.append(json.dumps(story))

    return "\n".join(stories)


agent = Agent(
    tools=[get_top_hackernews_stories],
    markdown=True,
)

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    agent.print_response("What are the top hackernews stories?", stream=True)

​
Run the Example

# Clone and setup repo
git clone https://github.com/agno-agi/agno.git
cd agno/cookbook/91_tools/tool_decorator

# Create and activate virtual environment
./scripts/demo_setup.sh
source .venvs/demo/bin/activate

python cache_tool_calls.py