Worked on the TanStack/query repository to enhance code quality and enforce React best practices by improving the ESLint plugin for custom query hooks. Focused on tracking dependencies within these hooks, the solution introduced robust TypeScript-based tests to validate correct dependency detection and prevent unstable patterns. Addressed edge cases involving custom hook wrappers and chained wrappers, implementing fixes to ensure accurate linting and avoid temporal dead zone issues in test scenarios. Leveraged skills in ESLint, React, and testing to deliver a more reliable linting workflow, resulting in safer code, easier maintenance, and faster identification of problematic dependency usage in large codebases.