diff --git a/spond/base.py b/spond/base.py
index 872e4c3..16bc1e3 100644
--- a/spond/base.py
+++ b/spond/base.py
@@ -8,6 +8,7 @@
 Not intended to be instantiated directly — use a subclass.
 """
 
+import functools
 from abc import ABC
 from collections.abc import Callable
 
@@ -65,6 +66,7 @@ def require_authentication(func: Callable):
         client is not yet authenticated. On `AuthenticationError`, closes the
         underlying aiohttp session before re-raising."""
 
+        @functools.wraps(func)
         async def wrapper(self, *args, **kwargs):
             if not self.token:
                 try:
diff --git a/tests/test_spond.py b/tests/test_spond.py
index 7ab7c7b..8c99583 100644
--- a/tests/test_spond.py
+++ b/tests/test_spond.py
@@ -524,3 +524,32 @@ async def test_login__error_response_raises(self, mock_post) -> None:
         with pytest.raises(AuthenticationError):
             await s.login()
         assert s.token is None
+
+
+class TestRequireAuthenticationDecorator:
+    """The `require_authentication` decorator must preserve the wrapped
+    method's metadata (signature, docstring, name) so `inspect`-based
+    tools — pdoc, IDE help, tab completion — see the real method
+    rather than the wrapper's `(*args, **kwargs)` shim.
+    """
+
+    def test_decorator_preserves_signature(self) -> None:
+        """Decorated methods must expose their real parameter list."""
+        import inspect
+
+        # `get_posts` is decorated and has a distinctive signature
+        params = list(inspect.signature(Spond.get_posts).parameters)
+        assert params == ["self", "group_id", "max_posts", "include_comments"]
+
+    def test_decorator_preserves_docstring(self) -> None:
+        """Decorated methods must expose their own docstring, not the
+        wrapper's."""
+        import inspect
+
+        doc = inspect.getdoc(Spond.get_profile) or ""
+        # Wrapper docstring would start with 'Decorator that...' if leaked.
+        assert "Retrieve the authenticated user's profile." in doc
+
+    def test_decorator_preserves_name(self) -> None:
+        """`__name__` must be the method's, not 'wrapper'."""
+        assert Spond.get_events.__name__ == "get_events"