Web performance & accessibility

The top-rated launch-quality Web performance & accessibility skill for AI agents is website-analyzer (grade B), followed by pagespeed-audit and typo3-wcag22-aa-agentic. Skillspace rates 533 Web performance & accessibility skills; 117 are launch-quality.

Core Web Vitals, bundle size, loading strategy, WCAG and a11y audits.

Launch-quality skills first, then by grade, then by our Skill Score, which adds judge reviews, test results, GitHub stars and adoption.

  1. website-analyzer B
  2. pagespeed-audit B
  3. typo3-wcag22-aa-agentic B
  4. accessibility-implementation B
  5. israeli-accessibility-compliance B
  6. chromevox-debugging-on-chromebook C
  7. alt-text C
  8. broken-images C
  9. srcset C
  10. common-accessibility C
  11. image-optimization C
  12. picture-element C
  13. modern-format C
  14. image-file-size C
  15. optimized C
  16. svg-inline C
  17. aria-input-field-name C
  18. color-contrast C
  19. html-xml-lang-mismatch C
  20. responsive-size C
  21. figure-figcaption C
  22. listitem C
  23. offscreen-lazy C
  24. aria-treeitem-name C
  25. viewport-zoom C

Frequently asked questions

What is the best Web performance & accessibility skill for AI agents?

The top-rated launch-quality Web performance & accessibility skill for AI agents is website-analyzer (grade B), followed by pagespeed-audit and typo3-wcag22-aa-agentic. Skillspace rates 533 Web performance & accessibility skills; 117 are launch-quality.

How does Skillspace rate Web performance & accessibility skills?

Skillspace grades every Web performance & accessibility skill from A to F with a published scoring engine that reads the skill's SKILL.md: architecture and maturity make the score, and a security scan can cap it. In crowded categories, a judge model also compares the strongest contenders side by side, and some skills are tested head-to-head on real tasks against other skills in the same category (including a deliberately weak one) and a no-skill baseline. Launch-quality skills are graded A to C with a clean safety verdict, and not excluded by a quality filter: the filters catch skills our model's safety screen flags for prompt injection, guardrail bypass, harmful content or credential exposure; test fixtures and attack benchmarks; skills written only for the repository they live in; templates and stubs; and near-duplicate variants and copies of other skills. Ratings were last updated on 24 September 2026; the full method is on the methodology page.

Are Web performance & accessibility skills safe to install?

Of the 533 Web performance & accessibility skills Skillspace rates, 520 passed its safety scan and 13 are flagged: 6 for review, 6 as risky and 1 as unsafe. Each skill's page shows its safety verdict. A pass is not a guarantee: the scan reads only the skill's SKILL.md, not the scripts or other files it ships, and looks for patterns such as piping a remote script into a shell, reading credentials or hiding actions from the user. Skills are third-party code that Skillspace indexes but does not host or endorse, so read a skill's source on GitHub before you install it.

Skillspace indexes and rates skills; it does not host or endorse them. Run third-party skills at your own risk.