Summary
This is the skill you reach for when your PageSpeed scores are tanking and you need a systematic fix. It walks through the big three Core Web Vitals with prioritized solutions: responsive images with fetchpriority for LCP, debouncing and Web Workers for INP, and aspect ratios to prevent layout shift for CLS. The code snippets are practical and ready to adapt, covering everything from preload hints to Lighthouse CI verification. What's useful here is the prioritization, it starts with the highest impact fixes first rather than making you guess. Good for when you're staring at red metrics and need a battle tested checklist to work through.
Install to Claude Code
npx -y skills add patricio0312rev/skills --skill core-web-vitals-tuner --agent claude-codeInstalls into .claude/skills of the current project.
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →Files
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Featured
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →First SeenJun 3, 2026
