Execute comprehensive test suites using CloakBrowser for end-to-end web application testing, accessibility testing, visual regression testing, and chaos testing validation. Use this skill whenever the user says "test my app", "run test suite", "browser test", "verify functionality", "test in CloakBrowser", "run E2E tests", or needs to validate application behavior before and after chaos experiments. Also trigger after CI/CD pipeline setup (s04) and before chaos experiment execution (s12+) to establish baseline behavior. CloakBrowser (https://github.com/CloakHQ/CloakBrowser) is used for its enhanced privacy, anti-detection capabilities, and agent-friendly automation API.