Summary
A solid reference for web performance optimization that covers the fundamentals you actually need. It walks through critical rendering path optimizations, image format selection (AVIF vs WebP vs PNG), font loading strategies, and JavaScript code splitting patterns. The performance budgets are reasonable (1.5MB total, 300KB JS) and the before/after guidance helps you prioritize work by Core Web Vitals impact. Includes practical examples for responsive images with picture elements, cache headers, debouncing, and avoiding layout thrashing. Good for speed audits or when someone says their site is slow and you need to systematically work through the common culprits.
Install to Claude Code
npx -y skills add davila7/claude-code-templates --skill performance --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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Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
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Notes, actions and memory. Without a meeting bot. First month 100% off.
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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
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SKILL.md
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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 →
