Skill Claude CodeCodexCursor
A performance-optimization guide for front-end and back-end applications, covering page-speed checks, browser metrics, bundle analysis, and caching. Core Web Vitals are measurements of loading speed, responsiveness, and visual stability.
Skill Claude CodeCodexCursor
A web-security guide covering user sign-in, permissions, encryption, security headers, and dependency checks. OWASP Top 10 is a commonly used list of major web-application security risks.
Skill Claude CodeCodexCursor
A testing guide covering unit tests, component tests, integration tests, and end-to-end tests using tools such as Vitest, React Testing Library, Playwright, and MSW. End-to-end tests check complete user flows in a running application.