`fastmcp.utilities.docstring_parsing`

Extract descriptions from function docstrings. Uses griffelib to parse Google, NumPy, and Sphinx-style docstrings. The interface is intentionally narrow — a single function returning a ParsedDocstring — so the implementation can be swapped without touching callers.

Functions

`parse_docstring`

parse_docstring(fn: Callable[..., Any]) -> ParsedDocstring

Parse a function’s docstring into a summary and parameter descriptions. Tries Google, NumPy, and Sphinx parsers in order, using the first one that recognizes a structured section (parameters, returns, raises, and so on). The description is the free-form text before the first such section. If no parser recognizes a section, returns the full docstring as the description with no parameter descriptions.

Classes

`ParsedDocstring`

The extracted description and per-parameter descriptions from a docstring.

fastmcp.apps

fastmcp.cli

fastmcp.client

fastmcp.experimental

fastmcp.prompts

fastmcp.resources

fastmcp.server

fastmcp.tools