diff --git a/checks/wagner_titanus_topsense b/checks/wagner_titanus_topsense
index fd3a9df540f..e3b9993c0e6 100644
--- a/checks/wagner_titanus_topsense
+++ b/checks/wagner_titanus_topsense
@@ -81,10 +81,6 @@ wagner_titanus_topsense_info = [
 ]
 
 
-def wagner_titanus_topsense_scan(oid):
-    return oid(".1.3.6.1.2.1.1.2.0") in [".1.3.6.1.4.1.34187.21501", ".1.3.6.1.4.1.34187.74195"]
-
-
 def parse_wagner_titanus_topsens(info):
     # not much of a parse function. simply retrieves the info blocks that apply for the
     # respective topsens model and returns only those
@@ -334,8 +330,8 @@ wagner_titanus_topsense_airflow_deviation_default_values = (-20.0, -20.0, 20.0,
 
 def inventory_wagner_titanus_topsense_airflow_deviation(info):
     return [
-        ("1", "wagner_titanus_topsense_airflow_deviation_default_values"),
-        ("2", "wagner_titanus_topsense_airflow_deviation_default_values"),
+        ("1", wagner_titanus_topsense_airflow_deviation_default_values),
+        ("2", wagner_titanus_topsense_airflow_deviation_default_values),
     ]
 
 
diff --git a/checks/winperf b/checks/winperf
index f15cc26a8fd..afee90e535c 100644
--- a/checks/winperf
+++ b/checks/winperf
@@ -63,7 +63,7 @@ def inventory_win_diskstat(info):
     for line in info:
         try:
             if line[0] == "2:16" or line[0] == "2:18":
-                return [(None, None, None)]
+                return [(None, None)]
         except Exception:
             pass
     return []
diff --git a/checks/wut_webtherm b/checks/wut_webtherm
index 15b6b36c3a7..4a13b5dbc78 100644
--- a/checks/wut_webtherm
+++ b/checks/wut_webtherm
@@ -12,10 +12,6 @@ from cmk.base.check_legacy_includes.humidity import *  # pylint: disable=wildcar
 from cmk.base.check_legacy_includes.temperature import *  # pylint: disable=wildcard-import,unused-wildcard-import
 
 
-def detect_webtherm(oid):
-    return oid(".1.3.6.1.2.1.1.2.0").startswith(".1.3.6.1.4.1.5040.1.2.")
-
-
 def parse_wut_webtherm(info):
     map_sensor_type = {
         "1": "temp",
@@ -144,7 +140,7 @@ wut_webtherm_humidity_defaultlevels = (35, 40, 60, 65)
 
 def inventory_wut_webtherm_humidity(parsed):
     return [
-        (sensor_id, "wut_webtherm_humidity_defaultlevels")
+        (sensor_id, wut_webtherm_humidity_defaultlevels)
         for sensor_id, values in parsed.items()
         if values["type"] == "humid"
     ]
diff --git a/cmk/base/check_legacy_includes/wmi.py b/cmk/base/check_legacy_includes/wmi.py
index 16f45644e8d..13e64403d5d 100644
--- a/cmk/base/check_legacy_includes/wmi.py
+++ b/cmk/base/check_legacy_includes/wmi.py
@@ -113,7 +113,7 @@ def inventory_wmi_table_instances(  # type: ignore[no-untyped-def]
     tables: WMISection,
     required_tables: Iterable[str] | None = None,
     filt: Callable[[WMISection, str | int], bool] | None = None,
-    levels=None,
+    levels: tuple | dict | None = None,  # important for now: not str!
 ):
     if required_tables is None:
         required_tables = tables
@@ -140,7 +140,7 @@ def inventory_wmi_table_total(  # type: ignore[no-untyped-def]
     tables: WMISection,
     required_tables: Iterable[str] | None = None,
     filt: Callable[[WMISection, None], bool] | None = None,
-    levels=None,
+    levels: tuple | dict | None = None,  # important for now: not str!
 ):
     if required_tables is None:
         required_tables = tables