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.
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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 →
