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Front End Performance

Category: Engineering  ·  Sub-category: performance  ·  Last updated:
type:debug
Front-end performance optimization including Core Web Vitals, render performance, asset optimization, and perceived speed. Use when: diagnosing slow page loads, optimizing Largest Contentful Paint (LCP), reducing Cumulative Layout Shift (CLS), improving Interaction to Next Paint (INP), bundle size analysis, lazy loading, caching strategies.

What this skill does

Front End Performance is a community-contributed Claude Code skill in the performance sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/front-end-performance/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when: diagnosing slow page loads, optimizing Largest Contentful Paint (LCP), reducing Cumulative Layout Shift (CLS), improving Interaction to Next Paint (INP), bundle size analysis, lazy loading, caching strategies.

Who uses this skill

The Front End Performance Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 70,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/front-end-performance
curl -L https://claudskills.com/skills/front-end-performance/SKILL.md \
  -o ~/.claude/skills/front-end-performance/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/front-end-performance/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/front-end-performance/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\front-end-performance\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
ClaudSkills. (2026). Front End Performance [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/front-end-performance/
BibTeX
@misc{front-end-performance-2026,
  author    = {ClaudSkills},
  title     = {Front End Performance [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/front-end-performance/}
}

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Browse all Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills.  ·  What's New  ·  Install guide  ·  About  ·  llms.txt

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