diff --git a/src/teradata_mcp_server/app.py b/src/teradata_mcp_server/app.py
index 3470b3c..ac08ea8 100644
--- a/src/teradata_mcp_server/app.py
+++ b/src/teradata_mcp_server/app.py
@@ -243,6 +243,7 @@ def _exec(*args, **kwargs):
 
         _exec.__name__ = getattr(func, "__name__", "wrapped_tool")
         _exec.__signature__ = new_sig
+        _exec.__doc__ = func.__doc__
         if annotations:
             _exec.__annotations__ = annotations
         return _exec