Ensure deprecation warnings have stacklevel=2

src/fastmcp/prompts/prompt_manager.py

@@ -60,6 +60,7 @@ class PromptManager:
         warnings.warn(
             "PromptManager.add_prompt_from_fn() is deprecated. Use Prompt.from_function() and call add_prompt() instead.",
             DeprecationWarning,
+            stacklevel=2,
         )
         prompt = FunctionPrompt.from_function(
             fn, name=name, description=description, tags=tags

src/fastmcp/resources/resource_manager.py

@@ -125,6 +125,7 @@ class ResourceManager:
         warnings.warn(
             "add_resource_from_fn is deprecated. Use Resource.from_function() and call add_resource() instead.",
             DeprecationWarning,
+            stacklevel=2,
         )
         resource = Resource.from_function(
             fn=fn,
@@ -181,6 +182,7 @@ class ResourceManager:
         warnings.warn(
             "add_template_from_fn is deprecated. Use ResourceTemplate.from_function() and call add_template() instead.",
             DeprecationWarning,
+            stacklevel=2,
         )
         template = ResourceTemplate.from_function(
             fn,

src/fastmcp/tools/tool_manager.py

@@ -73,6 +73,7 @@ class ToolManager:
         warnings.warn(
             "ToolManager.add_tool_from_fn() is deprecated. Use Tool.from_function() and call add_tool() instead.",
             DeprecationWarning,
+            stacklevel=2,
         )
         tool = Tool.from_function(
             fn,