diff --git a/external/concealer/include/concealer/field_operator_application.hpp b/external/concealer/include/concealer/field_operator_application.hpp
index ade08bd64d0..7118d87fdf7 100644
--- a/external/concealer/include/concealer/field_operator_application.hpp
+++ b/external/concealer/include/concealer/field_operator_application.hpp
@@ -54,19 +54,6 @@
 
 namespace concealer
 {
-/* ---- NOTE -------------------------------------------------------------------
- *
- *  The magic class 'FieldOperatorApplication' is a class that makes it easy to work with
- *  Autoware from C++. The main features of this class are as follows
- *
- *    (1) Launch Autoware in an independent process upon instantiation of the
- *        class.
- *    (2) Properly terminates the Autoware process started by the constructor
- *        upon destruction of the class.
- *    (3) Probably the simplest instructions to Autoware, consisting of
- *        initialize, plan, and engage.
- *
- * -------------------------------------------------------------------------- */
 struct FieldOperatorApplication : public rclcpp::Node,
                                   public TransitionAssertion<FieldOperatorApplication>
 {
@@ -76,7 +63,7 @@ struct FieldOperatorApplication : public rclcpp::Node,
 
   const pid_t process_id = 0;
 
-  bool initialize_was_called = false;
+  bool initialized = false;
 
   std::string autoware_state = "LAUNCHING";
 
@@ -151,16 +138,8 @@ struct FieldOperatorApplication : public rclcpp::Node,
 
   auto clearRoute() -> void;
 
-  auto getMinimumRiskManeuverBehaviorName() const { return minimum_risk_maneuver_behavior; }
-
-  auto getMinimumRiskManeuverStateName() const { return minimum_risk_maneuver_state; }
-
-  auto getEmergencyStateName() const { return minimum_risk_maneuver_state; }
-
   auto getWaypoints() const -> traffic_simulator_msgs::msg::WaypointsArray;
 
-  auto initialized() const noexcept { return initialize_was_called; }
-
   auto requestAutoModeForCooperation(const std::string &, bool) -> void;
 
   auto rethrow() const { task_queue.rethrow(); }
diff --git a/external/concealer/src/field_operator_application.cpp b/external/concealer/src/field_operator_application.cpp
index fc2d154dc33..3c037480171 100644
--- a/external/concealer/src/field_operator_application.cpp
+++ b/external/concealer/src/field_operator_application.cpp
@@ -348,7 +348,7 @@ auto FieldOperatorApplication::getWaypoints() const -> traffic_simulator_msgs::m
 
 auto FieldOperatorApplication::initialize(const geometry_msgs::msg::Pose & initial_pose) -> void
 {
-  if (not std::exchange(initialize_was_called, true)) {
+  if (not std::exchange(initialized, true)) {
     task_queue.delay([this, initial_pose]() {
       waitForAutowareStateToBe_WAITING_FOR_ROUTE([&]() {
 #if __has_include(<autoware_adapi_v1_msgs/msg/localization_initialization_state.hpp>)
diff --git a/openscenario/openscenario_interpreter/src/syntax/user_defined_value_condition.cpp b/openscenario/openscenario_interpreter/src/syntax/user_defined_value_condition.cpp
index b9cfae284bc..93e2a126cfb 100644
--- a/openscenario/openscenario_interpreter/src/syntax/user_defined_value_condition.cpp
+++ b/openscenario/openscenario_interpreter/src/syntax/user_defined_value_condition.cpp
@@ -131,18 +131,19 @@ UserDefinedValueCondition::UserDefinedValueCondition(const pugi::xml_node & node
         "currentMinimumRiskManeuverState.behavior",
         [result]() {
           return make<String>(
-            asFieldOperatorApplication(result.str(1)).getMinimumRiskManeuverBehaviorName());
+            asFieldOperatorApplication(result.str(1)).minimum_risk_maneuver_behavior);
         }),
       std::make_pair(
         "currentMinimumRiskManeuverState.state",
         [result]() {
           return make<String>(
-            asFieldOperatorApplication(result.str(1)).getMinimumRiskManeuverStateName());
+            asFieldOperatorApplication(result.str(1)).minimum_risk_maneuver_state);
         }),
       std::make_pair(
         "currentEmergencyState",
         [result]() {
-          return make<String>(asFieldOperatorApplication(result.str(1)).getEmergencyStateName());
+          return make<String>(
+            asFieldOperatorApplication(result.str(1)).minimum_risk_maneuver_state);
         }),
       std::make_pair(
         "currentTurnIndicatorsState",
diff --git a/simulation/traffic_simulator/src/entity/ego_entity.cpp b/simulation/traffic_simulator/src/entity/ego_entity.cpp
index ca174980300..abb85f7885f 100644
--- a/simulation/traffic_simulator/src/entity/ego_entity.cpp
+++ b/simulation/traffic_simulator/src/entity/ego_entity.cpp
@@ -77,10 +77,7 @@ auto EgoEntity::asFieldOperatorApplication() -> concealer::FieldOperatorApplicat
   return *this;
 }
 
-auto EgoEntity::getCurrentAction() const -> std::string
-{
-  return autoware_state;
-}
+auto EgoEntity::getCurrentAction() const -> std::string { return autoware_state; }
 
 auto EgoEntity::getBehaviorParameter() const -> traffic_simulator_msgs::msg::BehaviorParameter
 {
@@ -190,7 +187,7 @@ void EgoEntity::requestAssignRoute(const std::vector<geometry_msgs::msg::Pose> &
     route.push_back(pose_stamped);
   }
 
-  if (not initialized()) {
+  if (not initialized) {
     initialize(getMapPose());
     plan(route);
     // NOTE: engage() will be executed at simulation-time 0.