Run Lighthouse against a list of URLs, surface regressions, and open GitHub issues for any page falling below thresholds.
The Lighthouse Checker skill batches Lighthouse audits across N URLs (sitemap-aware) and produces a regression report. Below-threshold pages auto-open GitHub issues with the failing metrics.
Best for: content sites with 50+ pages where manual Lighthouse runs aren’t sustainable.
Targets we use at 500k.io: Performance ≥95, SEO ≥95, Accessibility ≥95, Best Practices ≥95.
Skip if: your site is small enough to manually audit weekly.
Same corner
Review a PR or diff against project conventions; flag risk, suggest tests, identify duplication, score readability.
Validate JSON-LD across all pages of a site. Surface invalid schema, missing required properties, and AI Overview eligibility issues.
Coming soon
The submission portal opens next sprint. For now, ship to GitHub and tag claude-skill.
Free PDF
The full Skills Bank, organized by category, with install commands and 1-line verdicts.