Optimize content for search engines with keyword analysis, readability scoring, meta descriptions, and competitor comparison. Use this when users want to improve SEO, optimize blog posts, or analyze content for search performance.
SkillScore92Maintained
Automatic
◆Marketing & Content pack
Last verified 8/27/2026
What it changes
Passed 23 of 25 test cases with the skill, and 17 of 25 without it.
Without skill68%
With skill92%
Checks it passed that the model alone missed
The response uses the main heading '# SEO Analysis Report'.
The response starts with the main header '# SEO Analysis Report'.
The report marks keyword placement findings using bracketed status tags.
and 9 more in the full report
7 fixed16 passed either way1 still failing1 broke
Pass-rate lift
+24 pp
Tokens
+44%
Agent turns
0%
Response time
-16%
Model gemini-3.6-flashMeasured 8/27/2026v123 of 25 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 7 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 7
Prompt
Which specific quantitative writing style metrics must be reported alongside readability score and sentence length in the Readability Metrics section?
What was checked, without and with the skill
Checked
Without skill
With skill
The response includes Passive Voice percentage in the Readability Metrics section.
Passed
Passed
The response includes Transition Words percentage in the Readability Metrics section.
Missed
Passed
case-25 · gemini-3.6-flash · 8/27/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md227 linessingle file
SEO Content Optimizer
Comprehensive SEO analysis and optimization for content creators and marketers.
To optimize content for SEO, provide a detailed analysis covering keywords, readability, technical SEO, and actionable recommendations.
Instructions
1. Analyze Target Keywords
Examine keyword usage and placement:
Identify primary keyword(s) from user input or content
Check keyword placement (title, H1, first 100 words, subheadings)
Calculate keyword density (aim for 1-2%)
Identify LSI keywords and semantic variations present
Flag keyword stuffing issues
2. Evaluate Content Structure
Assess the organization and hierarchy:
Check heading hierarchy (single H1, then multiple H2, then H3)