Remove Annotated

Author: hallvictoria

azure/functions/decorators/function_app.py

@@ -44,7 +44,7 @@
     AssistantQueryInput, AssistantPostInput, InputType, EmbeddingsInput, \
     semantic_search_system_prompt, \
     SemanticSearchInput, EmbeddingsStoreOutput
-from .mcp import MCPToolTrigger, _TYPE_MAPPING, _extract_type_and_description
+from .mcp import MCPToolTrigger, _TYPE_MAPPING
 from .retry_policy import RetryPolicy
 from .function_name import FunctionName
 from .warmup import WarmUpTrigger
@@ -1603,15 +1603,14 @@ def decorator(fb: FunctionBuilder) -> FunctionBuilder:
                     continue
                 param_type_hint = param.annotation if param.annotation != inspect.Parameter.empty else str  # noqa
                 # Parse type and description from type hint
-                actual_type, param_desc = _extract_type_and_description(
-                    param_name, param_type_hint)
+                actual_type = param_type_hint
                 if actual_type is MCPToolContext:
                     continue
                 property_type = _TYPE_MAPPING.get(actual_type, "string")
                 tool_properties.append({
                     "propertyName": param_name,
                     "propertyType": property_type,
-                    "description": param_desc,
+                    "description": "",
                 })
 
             tool_properties_json = json.dumps(tool_properties)
@@ -1634,7 +1633,7 @@ async def wrapper(context: str, *args, **kwargs):
                 call_kwargs = {}
                 for param_name, param in sig.parameters.items():
                     param_type_hint = param.annotation if param.annotation != inspect.Parameter.empty else str  # noqa
-                    actual_type, _ = _extract_type_and_description(param_name, param_type_hint)
+                    actual_type = param_type_hint
                     if actual_type is MCPToolContext:
                         call_kwargs[param_name] = content
                     elif param_name in arguments:

azure/functions/decorators/mcp.py

@@ -1,7 +1,7 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
 from typing import Optional
-from typing import Any, Tuple, get_args, get_origin, Annotated
+from datetime import datetime
 
 from azure.functions.decorators.constants import (
     MCP_TOOL_TRIGGER
@@ -14,6 +14,8 @@
     float: "number",
     str: "string",
     bool: "boolean",
+    object: "object",
+    datetime: "string"
 }
 
 
@@ -34,14 +36,3 @@ def __init__(self,
         self.description = description
         self.tool_properties = tool_properties
         super().__init__(name=name, data_type=data_type)
-
-
-# Helper to extract actual type and description from Annotated types
-def _extract_type_and_description(param_name: str, type_hint: Any) -> Tuple[Any, str]:
-    if get_origin(type_hint) is Annotated:
-        args = get_args(type_hint)
-        actual_type = args[0]
-        # Use first string annotation as description if present
-        param_description = next((a for a in args[1:] if isinstance(a, str)), f"The {param_name} parameter.")  # noqa
-        return actual_type, param_description
-    return type_hint, f"The {param_name} parameter."