What problem does it solve? Measuring website performance consistently is difficult: manual browser tests are unrepeatable, scores vary between runs, and regressions slip into production unnoticed. This Skill provides ready-to-use commands and configurations for running Lighthouse audits, parsing reports, and enforcing performance budgets in CI pipelines. ## Core Features & Use Cases - CLI and Node API Audits: Run Lighthouse from the command line with presets, form factors, and throttling options, or programmatically via the Node API with chrome-launcher. - Performance Budgets: Define resource size, count, and timing budgets in budget.json and fail builds that exceed them. - CI Integration: Set up GitHub Actions with lighthouse-ci-action or full LHCI with historical tracking, assertions, and report uploads. - Report Parsing and Comparison: Extract Core Web Vitals from JSON reports and compare baseline versus PR builds to detect regressions. - Use Case: A team wants to prevent performance regressions on every pull request. Use this Skill to configure an LHCI workflow that runs three audits per URL, asserts a minimum performance score of 0.9, and fails the build if LCP exceeds 2500ms. ## Quick Start Run a Lighthouse performance audit on my staging URL and show me the performance score and Core Web Vitals.
