compatibility-testing

This skill strategically selects and executes regression tests based on code changes and risk analysis. It's used to verify that fixes don't break existing functionality and to optimize test suites for faster feedback in CI/CD. Key features include impact analysis, change-based test selection, and continuous regression management.

This Claude Skill provides comprehensive mobile testing for iOS and Android applications, covering gestures, sensors, permissions, and device fragmentation. Use it when testing native, hybrid, or mobile web apps to ensure quality across 1000+ device variants. It helps define device coverage matrices and test key platform differences.

This skill validates test suite effectiveness by automatically introducing code mutations and measuring the kill rate. Use it when evaluating test quality, identifying weak tests, or demonstrating that tests actually catch bugs. It leverages specialized testing agents to mutate code, run tests, and analyze results.

This skill automates internationalization and localization testing for global products, verifying translations, locale formats, RTL language support, and cultural appropriateness. It's designed for developers launching in new markets or building multi-language applications. Key capabilities include checking translation coverage and testing locale-specific formats like dates, times, and currencies.