About
The Mutation Test skill empowers developers to go beyond simple code coverage metrics by measuring the actual effectiveness of their test suites. By systematically introducing 'mutants'—small changes in the source code like operator swaps or boundary shifts—it verifies if existing tests are capable of detecting these regressions. It provides detailed reports on mutation scores, identifies survived mutants, and offers specific recommendations for hardening tests in critical modules across JavaScript, Python, and Java environments, ensuring that high coverage actually translates to high quality.