Agent skill · marketing growth · aiskillstore
seo-fundamentals
Auto-invoke when reviewing HTML head, meta tags, or Next.js page components. Enforces semantic HTML and search optimization.
Why this skill is useful
Provides specific SEO best practices and patterns for HTML and Next.js that the AI may not generate correctly on its own.
What it needs
About 3k tokens when loaded. Last updated 2026-08-07. 405 stars on the source repository.
What this skill does
SEO Fundamentals Review "Good SEO is good UX. If search engines can't understand your page, users might not find it." When to Apply Activate this skill when: Reviewing HTML <head> sections Seeing meta tags in code Next.js/Remix page components HTML structure with headings Any page that should be indexed --- The SEO Checklist Must Have (Every Page) [ ] Title tag — 50-60 characters, unique per page [ ] Meta description — 150-160 characters, compelling [ ] Single H1 — One per page, describes main content [ ] Logical heading hierarchy — H1 → H2 → H3 (no skipping) [ ] Semantic HTML — <header>, <main>, <nav>, <article>, <footer> [ ] Image alt text — Descriptive, not "image1.jpg" Should Have (Marketing Pages) [ ] Open Graph tags — og:title, og:description, og:image [ ] Twitter Card — twitter:card, twitter:title [ ] Canonical URL — Prevent duplicate content issues [ ] Structured data — JSON-LD for rich snippets Performance (Affects SEO) [ ] Core Web Vitals awareness LCP (Largest Contentful Paint) < 2.5s FID (First Input Delay) < 100ms CLS (Cumulative Layout Shift) < 0.1 --- Common Mistakes (Anti-Patterns) 1. Multiple H1 Tags 2. Missing Alt Text 3. Div Soup (No Semantic HTML) 4. Skipping Heading Levels 5. Generic Title Tags --- Socratic Questions Ask these instead of giving answers: 1. Title: "If someone sees this title in Google results, would they click it?" 2. H1: "How many H1 tags does this page have? What happens if there are multiple?" 3. Alt Text: "If the image doesn't load, what information is lost?" 4. Semantic HTML: "Can a screen reader understand the structure of this page?" 5. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills aiskillstore/seo-fundamentals