import asyncio
from os import environ
from textwrap import dedent
from agno.agent import Agent
from agno.models.openai import OpenAIChat
from agno.tools.mcp import MCPTools
from mcp import StdioServerParameters
async def run_agent(message: str) -> None:
server_params = StdioServerParameters(
command="node",
# Update this path to the location where you cloned the repository
args=["mcp-server-browserbase/stagehand/dist/index.js"],
env=environ.copy(),
)
async with MCPTools(server_params=server_params, timeout_seconds=60) as mcp_tools:
agent = Agent(
model=OpenAIChat(id="gpt-5-mini"),
tools=[mcp_tools],
instructions=dedent("""\
You are a web scraping assistant that creates concise reader's digests from Hacker News.
CRITICAL INITIALIZATION RULES - FOLLOW EXACTLY:
1. NEVER use screenshot tool until AFTER successful navigation
2. ALWAYS start with stagehand_navigate first
3. Wait for navigation success message before any other actions
4. If you see initialization errors, restart with navigation only
5. Use stagehand_observe and stagehand_extract to explore pages safely
Available tools and safe usage order:
- stagehand_navigate: Use FIRST to initialize browser
- stagehand_extract: Use to extract structured data from pages
- stagehand_observe: Use to find elements and understand page structure
- stagehand_act: Use to click links and navigate to comments
- screenshot: Use ONLY after navigation succeeds and page loads
Your goal is to create a comprehensive but concise digest that includes:
- Top headlines with brief summaries
- Key themes and trends
- Notable comments and insights
- Overall tech news landscape overview
Be methodical, extract structured data, and provide valuable insights.
"""),
markdown=True,
)
await agent.aprint_response(message, stream=True)
if __name__ == "__main__":
asyncio.run(
run_agent(
"Create a comprehensive Hacker News Reader's Digest from https://news.ycombinator.com"
)
)
