diff --git a/cooperative_cuisine/counters.py b/cooperative_cuisine/counters.py
index 04ee69c6825214f50081f9b7993d94c80cab99fa..2853e59eafc010736fa7ed2938d5a6bbe4d7cec9 100644
--- a/cooperative_cuisine/counters.py
+++ b/cooperative_cuisine/counters.py
@@ -181,7 +181,6 @@ class Counter:
 
         Args:
             item: The item for which to check, if it can be placed on the counter.
-            player: The player name that tries to drop something on the counter.
 
 
         Returns: True if the item can be placed on the counter, False if not.
@@ -194,7 +193,7 @@ class Counter:
 
         Args:
             item: The item to be placed on the counter.
-
+            player: The player name that tries to drop something on the counter.
 
         Returns:
             Item or None what should be put back on the players hand, e.g., the cooking equipment.
@@ -232,8 +231,9 @@ class Counter:
         if not successful:
             self._do_single_tool_interaction(passed_time, tool, self)
 
+    @staticmethod
     def _do_single_tool_interaction(
-        self, passed_time: timedelta, tool: Item, target: Item | Counter
+        passed_time: timedelta, tool: Item, target: Item | Counter
     ) -> bool:
         suitable_effects = [
             e for e in target.active_effects if e.name in tool.item_info.needs
diff --git a/cooperative_cuisine/utils.py b/cooperative_cuisine/utils.py
index 7d57d5c6156ee247749d5f4ac29edecc6749a53e..d6e0bfdb341d1686cc99a2fb94d8b04e6952745a 100644
--- a/cooperative_cuisine/utils.py
+++ b/cooperative_cuisine/utils.py
@@ -191,9 +191,8 @@ def setup_logging(enable_websocket_logging=False):
 def url_and_port_arguments(
     parser, server_name="game server", default_study_port=8080, default_game_port=8000
 ):
-    # TODO follow cli args standards: https://askubuntu.com/questions/711702/when-are-command-options-prefixed-with-two-hyphens
     parser.add_argument(
-        "-study",
+        "-s",
         "--study-url",
         "--study-host",
         type=str,
@@ -208,7 +207,7 @@ def url_and_port_arguments(
         help=f"Port number for the {server_name}",
     )
     parser.add_argument(
-        "-game",
+        "-g",
         "--game-url",
         "--game-host",
         type=str,