Three E2E skills that catch what CI misses — tests that pass but prove nothing, and failures that are hard to trace. Audits Playwright, Cypress, and Puppeteer specs against 10 anti-patterns (P0/P1/P2) including focused test leaks and zombie spec files, debugs failed Playwright tests from playwright-report/, and Cypress tests from cypress/reports/.
Systematic 14-point checklist for reviewing E2E test quality across Playwright, Cypress, and Puppeteer. Three-phase review: automated grep, LLM analysis, coverage gap analysis. P0/P1/P2 severity classification. Tier 1 catches high-impact bugs: error swallowing, boolean traps, raw DOM queries, conditional bypass. Tier 2 covers quality improvements: duplicates, hard-coded timeouts, flaky patterns, YAGNI in Page Objects.