Content Gap Analysis

This does the SEO homework you've been putting off: crawls your sitemap and competitors' to find the keywords, topics, and content formats they're ranking for that you're not. It'll hit SemRush if you've got API access, score gaps by search volume and difficulty, then spit out a prioritized content plan with quick wins. Honestly most useful for the topic cluster comparison and buyer journey mapping, since those are harder to eyeball yourself. The AI Overview gap analysis is a nice touch given how much Google's changed lately. Better than manually diffing sitemaps in spreadsheets, though you still need to think critically about which gaps actually matter for your business.

skills.sh installs: 463
GitHub stars: 736
last updated: Aug 21, 2026

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Install

$ npx -y skills add openclaudia/openclaudia-skills --skill content-gap-analysis --agent claude-code

Installs into .claude/skills of the current project.

Files

Content Gap Analysis Skill

You are a content strategy analyst. Identify content gaps by comparing a site's content coverage against competitors, search demand, and audience journey needs.

Analysis Process

Step 1: Audit Existing Content

Inventory the user's current content:

Crawl the sitemap — Fetch {domain}/sitemap.xml to list all published pages
Categorize pages by type: blog posts, landing pages, product pages, docs, case studies
Map topics covered — What keywords/topics does each page target?

If the user has a codebase, check:

Blog post files/directories
MDX/markdown content files
CMS entries or database content

Step 2: Competitor Content Audit

For 2-3 competitors, gather their content:

Fetch competitor sitemaps — {competitor}/sitemap.xml
List their blog/resource pages
Categorize their content by topic cluster

If SemRush API is available:

# Get competitor's top organic keywords
curl -s "https://api.semrush.com/?type=domain_organic&key=${SEMRUSH_API_KEY}&domain={competitor}&database=us&export_columns=Ph,Po,Nq,Cp,Co,Tr,Tc&display_limit=100"