Worked on enhancing annotation handling within the PHP-CS-Fixer/PHP-CS-Fixer repository by extending the GlobalNamespaceImportFixer to analyze and fix a broader range of annotation types, including extends, implements, and param-out. Focused on improving code quality and reliability in large PHP codebases, the approach involved code refactoring and the addition of comprehensive tests to ensure robust import handling for complex type hints and generic types. Leveraged PHP development and testing skills to strengthen type analysis and import resolution, resulting in more maintainable code and improved support for advanced annotation scenarios in projects that rely on PHP-CS-Fixer for code consistency.