detecting-performance-regressions

# Performance Regression Detector ## Positioning Treat this skill as an explicit/manual helper for benchmark comparison work. ## When to Use Use this skill when: - Identify performance regressions in a CI/CD pipeline. - Analyze performance metrics for potential degradation. - Compare current performance against historical baselines. ## Not For / Boundaries - Broad optimization roadmap or tuning backlog: use `providing-performance-optimization-advice` - Root-cause debugging of a specific slow path: use `systematic-debugging` - General test artifact packaging without regression judgment: use `generating-test-reports` ## Typical Outputs - A baseline-vs-current regression summary - Severity-ranked regressed metrics - Follow-up questions for deeper profiling or investigation ## Related Skills - `performance-testing` for benchmark generation - `providing-performance-optimization-advice` after the regression is confirmed