Home / Skills / core-web-vitals
core-web-vitals
addyosmani/web-quality-skillsSkill
Optimize Core Web Vitals (LCP, INP, CLS) for better page experience using field and lab evidence. Use when asked to "improve Core Web Vitals", "fix LCP", "reduce CLS", "optimize INP", "page experience optimization", or "fix layout shifts".
Why this score
This repo hosts 6 skills, so its 2,967 stars are split between them (about 495 each) for scoring.
Popularity score: 71/100 from public GitHub signals only. It shows how widely used and maintained this is, not how well it works. Not included yet: the fake-star check. The security scan is shown separately and doesn't change the score. How we rank
Security
Scanned Oct 20, 2026 at commit afa8da942115, with Cisco's open-source skill-scanner.
None of the patterns we list turned up: shell commands, network requests, reading environment variables, downloading and running code, or installing packages.
A scan lists patterns in the code. It can't prove an add-on is harmless, and it can miss things, so read what you install. How we scan
Alternatives
Other makers' add-ons that do the same job, next to this one.
| Name | Score | Stars | Context | Updated |
|---|---|---|---|---|
| This onecore-web-vitals addyosmani/web-quality-skills · Skill | 71 | ★ 3.0k | ≈64 always | 2mo ago |
| seo-core-web-vitals Hainrixz/claude-seo-ai · Skill Both about vital and core | 53 | ★ 77 | ≈88 always | 2mo ago |
| webperf-core-web-vitals nucliweb/webperf-snippets · Skill Both about vital and core | 69 | ★ 1.5k | ≈145 always | 16d ago |
| vitals chopratejas/vitals · Plugin Both about vital | 49 | ★ 43 | not measured | 8mo ago |
| web-perf secondsky/sap-skills · Skill Both about vital and inp | 67 | ★ 468 | ≈116 always | 19d ago |