next_trading_day
Calculate the next trading day in China's A-share market after a specified date to plan investment activities and schedule transactions.
Instructions
Get the next trading day after the given date.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| date | Yes |
Implementation Reference
- src/tools/date_utils.py:53-59 (handler)MCP tool handler for next_trading_day, registered with @app.tool() and delegates to the use case layer with error handling.
@app.tool() def next_trading_day(date: str) -> str: """Get the next trading day after the given date.""" return run_tool_with_handling( lambda: uc_date.next_trading_day(active_data_source, date=date), context=f"next_trading_day:{date}", ) - src/use_cases/date_utils.py:73-79 (helper)Core logic implementation of next_trading_day, which fetches trading days around the given date and returns the next trading day.
def next_trading_day(data_source: FinancialDataSource, *, date: str) -> str: target = datetime.strptime(date, "%Y-%m-%d") end = (target + timedelta(days=31)).strftime("%Y-%m-%d") df = _fetch_trading_days(data_source, start_date=date, end_date=end) days = df[df["is_trading_day"] == "1"]["calendar_date"].tolist() next_day = min([d for d in days if d > date], default=None) return next_day or date - mcp_server.py:56-56 (registration)Invocation of the register function that adds the next_trading_day tool (among others) to the MCP app.
register_date_utils_tools(app, active_data_source)