content-optimizer
About
The content-optimizer skill validates and improves on-page SEO by analyzing keyword density, meta tags, heading structure, and readability. Developers can use it to optimize existing content or validate new content against SEO requirements. It provides specific metrics and warnings for key elements like keyword placement and title tag length.
Quick Install
Claude Code
Recommended/plugin add https://github.com/majiayu000/claude-skill-registrygit clone https://github.com/majiayu000/claude-skill-registry.git ~/.claude/skills/content-optimizerCopy and paste this command in Claude Code to install this skill
Documentation
Content Optimizer
When to Use
- Optimizing existing content for better rankings
- Validating new content against SEO requirements
- Checking keyword density and placement
- Improving readability scores
- Creating meta tags
Keyword Density
Target: 1-2% for primary keyword
Calculation:
Density = (Keyword Count / Total Words) x 100
Placement Priorities:
- Title/H1 (required)
- First 100 words (required)
- At least one H2 (recommended)
- Conclusion (recommended)
- Distributed in body (natural)
Warning Signs:
-
3% = Keyword stuffing risk
- <0.5% = Under-optimized
- Exact match every paragraph = Unnatural
Meta Tag Optimization
Title Tag
- Length: 50-60 characters
- Keyword: Near the beginning
- Format:
{Keyword} - {Benefit} | {Brand} - Unique per page
Meta Description
- Length: 150-160 characters
- Keyword: Include naturally
- CTA: End with action verb
- Unique per page
URL Slug
- Short: 3-5 words
- Keyword: Include primary
- Readable: Use hyphens
- Lowercase only
Heading Structure
Valid Hierarchy:
H1: Page Title (exactly 1)
+-- H2: Main Section
| +-- H3: Subsection
| +-- H3: Subsection
+-- H2: Main Section
| +-- H3: Subsection
+-- H2: Conclusion
Common Errors:
- Multiple H1 tags
- Skipping levels (H1 -> H3)
- Using headings for styling only
- No keyword in H1
Readability Optimization
Flesch Reading Ease Target: 60-70
| Score | Level | Audience |
|---|---|---|
| 90-100 | Very Easy | 5th grade |
| 80-89 | Easy | 6th grade |
| 70-79 | Fairly Easy | 7th grade |
| 60-69 | Standard | 8th-9th grade |
| 50-59 | Fairly Difficult | 10th-12th grade |
| 30-49 | Difficult | College |
| 0-29 | Very Difficult | College graduate |
Improvement Techniques:
- Shorten sentences (<20 words avg)
- Shorten paragraphs (2-3 sentences)
- Replace jargon with plain language
- Use active voice
- Add subheadings every 200-300 words
- Use bullet points for lists
Optimization Checklist
Use this checklist when optimizing content:
- Primary keyword in title/H1
- Primary keyword in first 100 words
- Keyword density 1-2%
- Meta title 50-60 characters
- Meta description 150-160 characters with CTA
- Heading hierarchy valid (H1 -> H2 -> H3)
- At least 3 internal links
- At least 1 external authoritative link
- Flesch score 60-70
- No paragraphs > 3 sentences
- Subheadings every 200-300 words
GitHub Repository
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