Wiktor Czyż developed explicit inlay hints for polymorphic record fields in the input-output-hk/haskell-language-server repository, enhancing type clarity for complex Haskell records. He refactored the getFields function to accurately extract field labels, ensuring that inlay hints are reliable and maintainable across polymorphic types. This work involved deep code analysis and integration with the GHC API, leveraging Haskell expertise and test-driven development to validate the new behavior. By improving the IDE experience, Wiktor’s contribution reduced ambiguity during debugging and code navigation, enabling developers to work more confidently and efficiently with advanced record structures in Haskell projects.