Local plugin authors had no way to learn about enabled_attr, admin_only, keywords_format_key, the get_help_text(self, message=None) signature, translated_or, run_periodic, _cancel_tasks, _subscribe/_unsubscribe_all or ChannelBridgeBase short of reading the base classes. A new "Base class hooks" section lists what each does, with the facts checked against base_command.py, base_service.py and channel_bridge_utils.py.