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.
Plug Mailtrap into your AI workflow and let it handle the email.
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Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
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Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
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Files
SKILL.md
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →First SeenJun 3, 2026
