openclaw / core-vitals-fixer
Install for your project team
Run this command in your project directory to install the skill for your entire team:
mkdir -p .claude/skills/core-vitals-fixer && curl -L -o skill.zip "https://fastmcp.me/Skills/Download/3966" && unzip -o skill.zip -d .claude/skills/core-vitals-fixer && rm skill.zipProject Skills
This skill will be saved in .claude/skills/core-vitals-fixer/ and checked into git. All team members will have access to it automatically.
Important: Please verify the skill by reviewing its instructions before using it.
Fix Core Web Vitals issues with AI guidance. Use when your Lighthouse scores are bad.
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Skill Content
--- name: core-vitals-fixer description: Fix Core Web Vitals issues with AI guidance. Use when your Lighthouse scores are bad. --- # Core Web Vitals Fixer Your LCP is 4 seconds, CLS keeps jumping, and FID feels sluggish. This tool scans your code and tells you exactly what to fix and how. **One command. Zero config. Just works.** ## Quick Start ```bash npx ai-core-vitals ./src/ ``` ## What It Does - Analyzes your code for Core Web Vitals issues - Identifies LCP, FID, and CLS problems - Provides specific fixes with code examples - Prioritizes issues by impact ## Usage Examples ```bash # Scan your source directory npx ai-core-vitals ./src/ # Scan app directory npx ai-core-vitals ./app/ # Focus on specific metric npx ai-core-vitals ./src/ --metric lcp ``` ## Best Practices - **Fix LCP first** - it's usually the biggest win - **Lazy load below the fold** - don't load what users can't see - **Reserve space for images** - prevents CLS - **Defer non-critical JS** - improves FID ## When to Use This - Lighthouse scores are tanking your SEO - Users complain about slow page loads - Core Web Vitals failing in Search Console - Building a new site and want to start optimized ## Part of the LXGIC Dev Toolkit This is one of 110+ free developer tools built by LXGIC Studios. No paywalls, no sign-ups, no API keys on free tiers. Just tools that work. **Find more:** - GitHub: https://github.com/LXGIC-Studios - Twitter: https://x.com/lxgicstudios - Substack: https://lxgicstudios.substack.com - Website: https://lxgic.dev ## Requirements No install needed. Just run with npx. Node.js 18+ recommended. Needs OPENAI_API_KEY environment variable. ```bash npx ai-core-vitals --help ``` ## How It Works Scans your code files for common performance antipatterns, then sends them to GPT-4o-mini. The AI identifies issues affecting LCP, CLS, and FID and provides actionable fixes with priority rankings. ## License MIT. Free forever. Use it however you want.