Overview Benchmark Contents Activity Versions 1 Ratings 0
See it in action One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
Prompt What target character count range should be advised for crafting meta descriptions?
What was checked, without and with the skill Checked Without skill With skill Recommends a meta description target range of 150 to 160 characters.
Show both answers
What's inside The instructions your model reads when the skill loads.
SKILL.md 88 lines single file
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
When it activates Automatically, when a task matches.
Use when user says "analyze this page", "check page SEO", or provides a single URL for review.
Track record Benchmark 22 / 23
test cases passed, vs 13 / 23 without
Adoption
Users 0
Times used 0 View activity → Safety and source details
SkillSafety ✓ 3 of 3 passed ✓ Code scan 15 of 15 checks clean
0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026
View 15 scanner checks live_secret remote_code_execution reverse_shell data_exfiltration ssrf_metadata agent_snooping anti_refusal destructive_commands obfuscated_unicode unicode_homoglyph opaque_blob suspicious_url tool_overreach trigger_abuse prompt_injection_phrasing
✓ Intent Safe
LLM judge · does the skill do what it claims
✓ Content Clean
LLM judge · policy & harmful-content review
Source Imported License MITImported 8/3/2026Version v1