diff --git a/CHANGELOG.md b/CHANGELOG.md
index 29d3692ca..b5f08ad04 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Breaking change: `Container` no longer shows required scrollbars by default https://github.com/Textualize/textual/issues/2361
 - Breaking change: `VerticalScroll` no longer shows a required horizontal scrollbar by default
 - Breaking change: `HorizontalScroll` no longer shows a required vertical scrollbar by default
+- Breaking change: Renamed `App.action_add_class_` to `App.action_add_class`
+- Breaking change: Renamed `App.action_remove_class_` to `App.action_remove_class`
 
 ### Added
 
diff --git a/docs/guide/actions.md b/docs/guide/actions.md
index 02649f57c..6b193df1d 100644
--- a/docs/guide/actions.md
+++ b/docs/guide/actions.md
@@ -126,9 +126,18 @@ In the previous example if you wanted a link to set the background on the app ra
 
 Textual supports the following builtin actions which are defined on the app.
 
+- [action_add_class][textual.app.App.action_add_class]
+- [action_back][textual.app.App.action_back]
 - [action_bell][textual.app.App.action_bell]
-- [action_push_screen][textual.app.App.action_push_screen]
+- [action_check_bindings][textual.app.App.action_check_bindings]
+- [action_focus][textual.app.App.action_focus]
+- [action_focus_next][textual.app.App.action_focus_next]
+- [action_focus_previous][textual.app.App.action_focus_previous]
 - [action_pop_screen][textual.app.App.action_pop_screen]
-- [action_switch_screen][textual.app.App.action_switch_screen]
+- [action_push_screen][textual.app.App.action_push_screen]
+- [action_quit][textual.app.App.action_quit]
+- [action_remove_class][textual.app.App.action_remove_class]
 - [action_screenshot][textual.app.App.action_screenshot]
+- [action_switch_screen][textual.app.App.action_switch_screen]
+- [action_toggle_class][textual.app.App.action_toggle_class]
 - [action_toggle_dark][textual.app.App.action_toggle_dark]
diff --git a/src/textual/app.py b/src/textual/app.py
index af59ce09e..a3b37430c 100644
--- a/src/textual/app.py
+++ b/src/textual/app.py
@@ -2411,7 +2411,11 @@ class App(Generic[ReturnType], DOMNode):
         self._unregister(root)
 
     async def action_check_bindings(self, key: str) -> None:
-        """An [action](/guide/actions) to handle a key press using the binding system."""
+        """An [action](/guide/actions) to handle a key press using the binding system.
+
+        Args:
+            key: The key to process.
+        """
         if not await self.check_bindings(key, priority=True):
             await self.check_bindings(key, priority=False)
 
@@ -2458,13 +2462,19 @@ class App(Generic[ReturnType], DOMNode):
         self.pop_screen()
 
     async def action_back(self) -> None:
-        """An [action](/guide/actions) to go back to the previous screen (pop the current screen)."""
+        """An [action](/guide/actions) to go back to the previous screen (pop the current screen).
+
+        Note:
+            If there is no screen to go back to, this is a non-operation (in
+            other words it's safe to call even if there are no other screens
+            on the stack.)
+        """
         try:
             self.pop_screen()
         except ScreenStackError:
             pass
 
-    async def action_add_class_(self, selector: str, class_name: str) -> None:
+    async def action_add_class(self, selector: str, class_name: str) -> None:
         """An [action](/guide/actions) to add a CSS class to the selected widget.
 
         Args:
@@ -2473,7 +2483,7 @@ class App(Generic[ReturnType], DOMNode):
         """
         self.screen.query(selector).add_class(class_name)
 
-    async def action_remove_class_(self, selector: str, class_name: str) -> None:
+    async def action_remove_class(self, selector: str, class_name: str) -> None:
         """An [action](/guide/actions) to remove a CSS class from the selected widget.
 
         Args: