Worked on the TanStack/query repository to enhance the reliability of its ESLint integration by addressing a specific issue in the no-unstable-deps rule. Focused on eliminating false positives when useQueries included the combine property, the solution involved introducing a hasCombineProperty helper and developing targeted unit tests to ensure ongoing accuracy. Leveraged skills in code analysis, JavaScript, and TypeScript to implement and validate the fix, maintaining high standards for code quality and lint rule behavior. The work emphasized robust testing practices and careful rule refinement, contributing to a more stable developer experience without introducing new features during the period.