Worked on the sktime/sktime repository to refactor test skip configuration for the SquaringResiduals estimator, focusing on improving test reliability and maintainability. The approach involved moving the skip rule from a global exclusion list to a per-estimator tagging mechanism, specifically using a tests:skip_by_name tag. This change localized test management, reduced global exclusion noise, and clarified test expectations for the estimator. By leveraging Python and software testing skills, the work enhanced continuous integration reliability and provided faster feedback for the SquaringResiduals path. No new dependencies were introduced, aligning the contribution with broader quality assurance efforts within the codebase.