Summary
A fork of Joan Leon's webperf-snippets that runs Chrome DevTools audits for images, videos, and SVGs. You get three core scripts: image element audit (format, lazy loading, sizing), video element audit (poster, preload, formats), and SVG bitmap detection. The real value is in the decision trees. It detects LCP images and triggers format analysis, spots layout shift risks from missing dimensions, and flags lazy loading mistakes like above-the-fold lazy or below-the-fold eager. Integrates with the webperf-core-web-vitals and webperf-loading skills to cross-reference LCP impact and resource priority. Use this when you need to audit media systematically rather than manually checking DevTools. The workflows are opinionated but sensible.
Install to Claude Code
npx -y skills add nucliweb/webperf-snippets --skill webperf-media --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.
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
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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 →
