E2E Testing When to Use Activate this skill when: - Writing E2E tests for complete user workflows (login, CRUD operations, multi-page flows) - Creating critical path regression tests that validate the full stack - Testing cross-browser compatibility (Chromium, Firefox, WebKit) - Validating authentication flows end-to-end - Testing file upload/download workflows - Writing smoke tests for deployment verification Do NOT use this skill for: - React component unit tests (use ) - Python backend unit/integration tests (use ) - TDD workflow enforcement (use ) - API contract testing without a browser…