During May 2025, Kolyya focused on stabilizing type definitions in the grafana/k6-DefinitelyTyped repository, addressing a critical bug in the Chessboard.js Square Enum. By correcting the enum mapping for chessboard squares, Kolyya ensured that each square, from g8 to g1, was accurately represented, eliminating a previous duplication issue with g7. This work, implemented in TypeScript with a strong emphasis on type definitions, improved type safety and reduced the risk of downstream errors in chessboard-related scripts. The update enhanced the maintainability of the k6-DefinitelyTyped codebase, providing more reliable type checking for developers working with chessboard representations.