Shelby Bice developed a centralized exclusions management feature for the sublime-security/sublime-rules repository, focusing on filtering out benign phishing simulation messages from live security analysis. Using YAML configuration and data filtering techniques, Shelby introduced a dedicated exclusions folder containing rules that apply per-source criteria, reducing false positives and streamlining triage. The implementation included default global exclusions files to ensure consistent coverage across environments, aligning with existing rules-management patterns for scalable governance. Shelby’s work demonstrated depth in security analysis and configuration management, providing a maintainable approach that enhances detection accuracy and supports cross-environment deployment without introducing unnecessary complexity or overhead.