[Python] VSCode and Terminal result differently in identifying MCP Tools

I have this code

import os
import sys
from dotenv import load_dotenv
load_dotenv()
from praisonaiagents import Agent, MCP

agent = Agent(
instructions="You are a Precise Assistant.",
llm="ollama/llama3.2",
tools=MCP("python server.py"),
)
agent.start("What is Apple’s stock price?")
agent.start("What is Melbourne's Weather?")
agent.start("What is the special of 3 and 4?")


Where the server is

from mcp.server.fastmcp import FastMCP
import asyncio

mcp = FastMCP("DemoServer")

@mcp.tool()
async def get_weather(city: str) -> str:
"""Get the current weather for a given city using wttr.in."""
import httpx
url = f"https://wttr.in/{city}?format=3"
headers = {
"User-Agent": (
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) "
"AppleWebKit/537.36 (KHTML, like Gecko) "
"Chrome/114.0.0.0 Safari/537.36"
)
}
async with httpx.AsyncClient(headers=headers) as client:
response = await client.get(url)
return response.text.strip()

@mcp.tool()
async def get_stock_price(symbol: str) -> str:
"""Get the current stock price using yfinance."""
import yfinance as yf
stock = yf.Ticker(symbol)
data = stock.info
return f"{symbol.upper()} current price: ${data['regularMarketPrice']}"

@mcp.tool()
def get_special_number(a: int, b: int) -> int:
"""
Provide a special number of the two numbers.

Args:
a (int): The first number
b (int): The second number

Returns:
int: The secret number of the two numbers
"""
return int(a) + int(b) + 1000


if __name__ == "__main__":
mcp.run(transport="stdio")


When I run on terminal python environment, all good. It can detect the tools function

╭─ Agent Info ───────────────────────────────────────────────────────────────────────────────────────────────╮
│ │
│ Agent: Agent │
│ Role: Assistant │
│ Tools: get_weather, get_stock_price, get_special_number │
│ │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────╯


However when I run it on VS Code environment, no tools are detected

[11:52:51] WARNING [11:52:51] mcp.py:398 WARNING No MCP tools available to convert to OpenAI mcp.py:398
format
INFO [11:52:51] llm.py:296 INFO Getting response from ollama/llama3.2 llm.py:296
╭─ Agent Info ─────────────────────────────────────────────────────────────────────────────────────────╮
│ │
│ Agent: Agent │
│ Role: Assistant │
│ │
╰──────────────────────────────────────────────────────────────────────────────────────────────────────╯


I check the .env all works. The server.py is detected by both. What cause the different?

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