Worked on the typescript-eslint/typescript-eslint repository to address a bug in the ESLint plugin’s handling of the toString method with overloaded declarations. Enhanced the no-base-to-string rule to accurately detect user-defined toString implementations, eliminating false positives that previously affected TypeScript codebases. Applied a test-driven approach by adding comprehensive tests and updating snapshots to ensure correct behavior across overload scenarios. This improvement reduced misleading lint results and improved CI reliability, streamlining development workflows. Demonstrated proficiency in TypeScript, ESLint plugin development, and testing, while collaborating effectively with teammates to deliver clear, traceable commits and maintain high code quality throughout the process.