Agent-Skills.md

Agent Skills: Single Page Analysis

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UncategorizedID: sickn33/antigravity-awesome-skills/seo-page

Repository

sickn33/antigravity-awesome-skills
sickn33License: MIT
27,0474,580

Install this agent skill to your local

pnpm dlx add-skill https://github.com/sickn33/antigravity-awesome-skills/tree/HEAD/skills/seo-page

Skill Files

Browse the full folder contents for seo-page.

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skills/seo-page/SKILL.md

Skill Metadata

Name
seo-page
Description
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Single Page Analysis

When to Use

  • Use when the user provides a single URL for detailed on-page SEO review.
  • Use when auditing one page rather than an entire site.
  • Use when checking metadata, content, schema, images, and page-level technical signals together.

What to Analyze

On-Page SEO

  • Title tag: 50-60 characters, includes primary keyword, unique
  • Meta description: 150-160 characters, compelling, includes keyword
  • H1: exactly one, matches page intent, includes keyword
  • H2-H6: logical hierarchy (no skipped levels), descriptive
  • URL: short, descriptive, hyphenated, no parameters
  • Internal links: sufficient, relevant anchor text, no orphan pages
  • External links: to authoritative sources, reasonable count

Content Quality

  • Word count vs page type minimums (see quality-gates.md)
  • Readability: Flesch Reading Ease score, grade level
  • Keyword density: natural (1-3%), semantic variations present
  • E-E-A-T signals: author bio, credentials, first-hand experience markers
  • Content freshness: publication date, last updated date

Technical Elements

  • Canonical tag: present, self-referencing or correct
  • Meta robots: index/follow unless intentionally blocked
  • Open Graph: og:title, og:description, og:image, og:url
  • Twitter Card: twitter:card, twitter:title, twitter:description
  • Hreflang: if multi-language, correct implementation

Schema Markup

  • Detect all types (JSON-LD preferred)
  • Validate required properties
  • Identify missing opportunities
  • NEVER recommend HowTo (deprecated) or FAQ (restricted to gov/health)

Images

  • Alt text: present, descriptive, includes keywords where natural
  • File size: flag >200KB (warning), >500KB (critical)
  • Format: recommend WebP/AVIF over JPEG/PNG
  • Dimensions: width/height set for CLS prevention
  • Lazy loading: loading="lazy" on below-fold images

Core Web Vitals (reference only, not measurable from HTML alone)

  • Flag potential LCP issues (huge hero images, render-blocking resources)
  • Flag potential INP issues (heavy JS, no async/defer)
  • Flag potential CLS issues (missing image dimensions, injected content)

Output

Page Score Card

Overall Score: XX/100

On-Page SEO:     XX/100  ████████░░
Content Quality: XX/100  ██████████
Technical:       XX/100  ███████░░░
Schema:          XX/100  █████░░░░░
Images:          XX/100  ████████░░

Issues Found

Organized by priority: Critical -> High -> Medium -> Low

Recommendations

Specific, actionable improvements with expected impact

Schema Suggestions

Ready-to-use JSON-LD code for detected opportunities

DataForSEO Integration (Optional)

If DataForSEO MCP tools are available, use serp_organic_live_advanced for real SERP positions and backlinks_summary for backlink data and spam scores.

Error Handling

| Scenario | Action | |----------|--------| | URL unreachable (DNS failure, connection refused) | Report the error clearly. Do not guess page content. Suggest the user verify the URL and try again. | | Page requires authentication (401/403) | Report that the page is behind authentication. Suggest the user provide the rendered HTML directly or a publicly accessible URL. | | JavaScript-rendered content (empty body in HTML) | Note that key content may be rendered client-side. Analyze the available HTML and flag that results may be incomplete. Suggest using a browser-rendered snapshot if available. |