ignore fields for forward compatiblity

Author: Kludex

src/mcp/types/_types.py

@@ -30,7 +30,7 @@
 
 
 class MCPModel(BaseModel):
-    """Base class for all MCP protocol types. Allows extra fields for forward compatibility."""
+    """Base class for all MCP protocol types."""
 
     model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)