Developed and integrated array parameter range constraint validation for the ros2/rclcpp repository, focusing on enhancing configuration safety for ROS 2 applications. The work introduced from_value, to_value, and step constraints for array parameters, ensuring each element adheres to defined numeric bounds. This feature was implemented in C++ and included the creation of new helper functions alongside a comprehensive unit test suite that covered standard scenarios, edge cases, and invalid inputs. By addressing parameter handling at this level, the changes reduced the risk of misconfiguration and runtime errors, contributing to more robust and reliable ROS 2 system deployments.