Worked on the tier4/autoware_launch repository to enhance safety and predictability in autonomous vehicle planning by updating configuration management for dynamic obstacle avoidance. Focused on YAML-based configuration, the developer modified the default_preset.yaml to disable launch_dynamic_obstacle_avoidance by default, reducing unintended reactive maneuvers in standard deployments while maintaining opt-in flexibility through presets. This targeted bug fix centralized control of default behaviors within the planning module, ensuring more predictable system responses. The work was documented in the commit history, reflecting a methodical approach to configuration management and safety-driven software updates. Primary technologies used included YAML and configuration management best practices.