- Log rejected tool arguments with %r: pydantic's error locations can
include caller-supplied dict keys, which must not break onto new log
lines.
- Build CompleteResult inside the completion adapter's try, so a handler
returning the wrong type is logged as a crash and answered with the
generic -32603 rather than "Invalid request parameters".
- On the legacy resolver path, a malformed ElicitResult from a
non-conformant client no longer has its pydantic text repeated back.
- Add FuncMetadata.call_fn() for calling with already-validated
arguments and use it from Tool.run; call_fn_with_arg_validation()
becomes a deprecated wrapper (MCPDeprecationWarning, removal in 3.0).
- Docstring and docs wording: MCPError carve-outs, nested crash message,
ResourceError in the imports and resource paragraph, the exact
MCPDeprecationWarning path a traceback prints.
Max Isbey
02a2b92681