normalize_index_code
Convert common stock index codes to Baostock format for consistent data processing in China's A-share market analysis.
Instructions
Normalize common index codes to Baostock format.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| code | Yes |
Implementation Reference
- src/tools/helpers.py:27-34 (handler)The main handler function for the 'normalize_index_code' tool. It is decorated with @app.tool() for MCP registration, logs the input, and delegates execution to the core logic via run_tool_with_handling for error handling.
@app.tool() def normalize_index_code(code: str) -> str: """Normalize common index codes to Baostock format.""" logger.info("Tool 'normalize_index_code' called with input=%s", code) return run_tool_with_handling( lambda: normalize_index_code_logic(code), context="normalize_index_code", ) - src/use_cases/helpers.py:30-39 (helper)Core helper function containing the exact normalization logic, mapping common index code strings to Baostock format codes (e.g., 'HS300' -> 'sh.000300') with validation.
def normalize_index_code_logic(code: str) -> str: validate_non_empty_str(code, "code") raw = code.strip().upper() if raw in {"000300", "CSI300", "HS300"}: return "sh.000300" if raw in {"000016", "SSE50", "SZ50"}: return "sh.000016" if raw in {"000905", "ZZ500", "CSI500"}: return "sh.000905" raise ValueError("Unsupported index code. Examples: 000300/CSI300/HS300, 000016, 000905.") - mcp_server.py:58-58 (registration)Top-level registration call in the main MCP server setup that invokes register_helpers_tools(app), thereby registering the 'normalize_index_code' tool.
register_helpers_tools(app)