Core Web Vitals

by thisisAhsanIqbal · development · go, nextjs, git, performance, skill

Audits HTML patterns that affect Core Web Vitals (LCP, CLS, INP). Checks for layout shift causes, largest contentful paint blockers, and interaction responsiveness issues. Use when optimising page performance or fixing Google PageSpeed Insights warnings.

Source: https://github.com/thisisAhsanIqbal/nextjs-seo-audit

Install

git clone https://github.com/thisisAhsanIqbal/nextjs-seo-audit

Tags: go, nextjs, git, performance, skill

⭐ 5 GitHub stars · Source: skillsdirectory

About development MCP servers and Claude skills

development MCP servers extend what AI agents can do inside Claude Code, Cursor, Copilot, Codex, and Windsurf. The Skiln directory indexes 16,000+ such integrations across 22 categories.

Core Web Vitals is one of hundreds of development entries indexed on Skiln. Browse the full development category or the complete directory of Claude skills, MCP servers, agents, commands, and hooks.

Related development MCPs and skills

  • nextjs-seo-audit by thisisAhsanIqbal

    Comprehensive SEO audit skill for Next.js and HTML pages. Covers on-page optimisation, JSON-LD schema validation, meta tags, Open Graph, semantic HTML, site speed, mobile responsiveness, and backlink analysis. Use when a user asks to audit, optimise, or fix SEO issues on a webpage or website.

  • Backlink Monitoring by thisisAhsanIqbal

    Analyses outbound links for dofollow/nofollow strategy, domain diversity, anchor text quality, and sponsored/UGC attributes. Use when auditing link profiles or optimising outbound linking strategy.

  • International Seo by thisisAhsanIqbal

    Validates hreflang tags, multi-language configuration, regional targeting, and internationalisation best practices. Use when auditing sites with multiple languages, regions, or localised content.

  • Meta Data Optimization by thisisAhsanIqbal

    Validates title tags, meta descriptions, Open Graph tags, and Twitter Cards. Use when auditing or fixing meta data for search engine and social media optimisation. For canonical URLs and robots directives, see the technical-seo skill.

  • Mobile Optimization by thisisAhsanIqbal

    Validates viewport meta configuration, responsive design, font sizes, touch target sizes, and mobile-hostile patterns. Use when checking mobile-friendliness or fixing mobile rendering issues.

  • Onpage Optimization by thisisAhsanIqbal

    Validates heading hierarchy, keyword density and placement, and internal/external link structure. Use when auditing on-page SEO factors for an HTML page.

  • Schema Json Optimization by thisisAhsanIqbal

    Validates existing JSON-LD structured data and suggests relevant schemas based on auto-detected page type. Does NOT enforce all schema types — only checks what is applicable to the current page context. Use when auditing or generating structured data for search engine rich results.

  • Semantic Layout by thisisAhsanIqbal

    Validates HTML5 semantic elements, ARIA landmarks, skip navigation, and page structure. Use when auditing semantic HTML, accessibility, or content structure for SEO. For the lang attribute, see the international-seo skill.

Frequently asked questions

How do I install Core Web Vitals?

Add the install command above to your Claude Code, Cursor, or Windsurf MCP configuration. Most servers register via npx, a local command, or a Docker image. Refer to the source repository for environment variables and credential requirements.

Which clients support Core Web Vitals?

Any MCP-compatible client works: Claude Desktop, Claude Code CLI, Cursor, Windsurf, Zed, and VS Code with the official MCP extension. OpenAI Codex and GitHub Copilot increasingly support MCP via adapter bridges.

Is Core Web Vitals free?

The server itself is typically open source. Any upstream service (API keys, paid tiers, hosted infrastructure) may have its own pricing. Check the source repository for details.