Andrew contributed to the detekt/detekt repository by refining the ForbiddenClassName rule, focusing on enhancing code quality and static analysis. He implemented a case-sensitive glob pattern matching mechanism using Kotlin, replacing the previous case-insensitive substring approach. This update leveraged the simplePatternToRegex utility, aligning rule enforcement with real-world naming conventions and reducing false positives. Andrew also updated the associated test suite to ensure robust coverage of the new matching logic, emphasizing maintainability and accuracy. His work demonstrated depth in rule development, as he addressed both the core logic and comprehensive testing, resulting in a more precise and reliable static analysis rule.