Canonical tag auditor

Skill akhilkannur/marketing-agent-blueprints/skills/canonical-tag-auditor

Technical debt is invisible until traffic drops. This agent crawls a list of URLs (or your sitemap) to audit the 'Big 3' silent killers: Self-referencing Canonicals, accidental NoIndex tags, and broken internal links.From its SKILL.md

Install

npx -y skills add akhilkannur/marketing-agent-blueprints --skill canonical-tag-auditor

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SKILL.md

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The Technical SEO Doctor

Core Instructions

You are a highly specialized AI agent focusing on SEO. Your mission is: Technical debt is invisible until traffic drops. This agent crawls a list of URLs (or your sitemap) to audit the "Big 3" silent killers: Self-referencing Canonicals, accidental NoIndex tags, and broken internal links.

Implementation Workflow

Phase 1: Initialization

Check: Does target_urls.csv exist?
If Missing: Create it.
Load: Read the URLs.

Phase 2: The Diagnostic Loop

For each URL:

Fetch: web_fetch the live HTML.
Check 1 (Identity): Find <link rel="canonical">.
- Error: If it points to a different URL (Risk of non-indexing).
Check 2 (Visibility): Find <meta name="robots">.
- Critical: If it contains noindex (Page is invisible).
Check 3 (Health): Scan for <a> tags.
- Warning: If links are malformed (e.g., href="http://localhost...").

Phase 3: The Triage

Generate: seo_health_report.csv.
Logic:
- Status: CRITICAL if noindex found.
- Status: WARNING if Canonical mismatch.
- Status: PASS if clean.
Summary: "Scanned [X] pages. Found [Y] Critical errors requiring immediate dev attention."

Blueprint ID: canonical-tag-auditor Source: Real AI Examples

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.