feature-rc/SIENTIAPDE-2164 -fix: apply Temporal replay-safe unpacking and guard against missing filter counters (review findings)

tests/laborious/activities/test_gates.py

@@ -6,7 +6,7 @@ from sientia_do.notifications.models import NotificationLevel
 from sientia_do.observability.metrics_controller import MetricsController
 from sientia_do.observability.sientia_monitoring import SientiaMonitoring
 
-from laborious.activities.gates import Gates
+from laborious.activities.gates import Gates, input_filter_counters, input_filter_functions
 
 
 @fixture(autouse=True)
@@ -136,6 +136,13 @@ def test_write_prediction_metadata_insert_failure_swallowed(gates_activity, mong
     gates_activity.error.assert_called_once()
 
 
+def test_input_filter_counters_covers_every_input_filter_function():
+    # A filter added to input_filter_functions without a matching entry here would degrade to
+    # counter=0 (see the `.get(..., lambda *_: 0)` fallback in input_gate) instead of crashing —
+    # but this test should still catch the gap before it ships (review finding, 2026-09-30).
+    assert set(input_filter_counters) == set(input_filter_functions)
+
+
 def test_input_gate_invalid_filter(gates_activity, mongo: MagicMock):
     # Arrange
     input_data = {