e2e-testlisted

# End-to-End (E2E) Test Skill This skill handles full-stack browser and user-journey automation testing. ## When to use this skill - When verifying critical business flows (e.g., User Signup, Checkout, Payment). - When using tools like Playwright, Cypress, or Selenium. - When testing the actual deployed frontend against a real environment. ## Guidelines - **High ROI Flows:** Only E2E test the most critical user journeys. These tests are slow and brittle. - **Resilient Selectors:** Prefer querying elements by testing-specific data attributes (e.g., `data-testid`) or ARIA roles rather than fragile CSS classes. - **Avoid Sleep:** Never use hardcoded wait/sleep times. Wait for specific network requests to complete or elements to become visible/interactive.