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SEO Content Optimizer · nicepkg | DecimalAI

marketingby nicepkg

SEO Content Optimizer

nicepkg/seo-content-optimizer

Source nicepkg/ai-workflow ↗License MIT

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.

NewMaintained

Automatic

Marketing & Content pack

Last verified 8/24/2026

What it changes

Passed 6 of 24 test cases with the skill, and 18 of 24 without it.

Without skill75%

With skill25%

Checks it passed that the model alone missed

Assesses average sentence length against the under 20 words benchmark.
Includes Flesch Reading Ease score evaluation against the 60-70 target range.

1 fixed17 passed either way4 still failing2 broke

Pass-rate lift: -50 pp
Tokens: +69%
Agent turns: 0%
Response time: -6%

Model gemini-3.6-flashMeasured 8/24/2026v118 of 24 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/nicepkg-seo-content-optimizer/SKILL.md https://app.decimal.ai/s/nicepkg-seo-content-optimizer/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add nicepkg-seo-content-optimizer, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/nicepkg-seo-content-optimizer/ and pins it in .decimal/skills.lock

decimalai skills add nicepkg-seo-content-optimizer

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/nicepkg-seo-content-optimizer/SKILL.md https://app.decimal.ai/s/nicepkg-seo-content-optimizer/SKILL.md

Raw file: /s/nicepkg-seo-content-optimizer/SKILL.md ↗ · machine-readable summary at /s/nicepkg-seo-content-optimizer.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

A test case the skill fixed. Same model, same prompt, with and without the skill.

Prompt

I need an in-depth search engine optimization evaluation for my blog post about 'Best Cold Brew Coffee Makers'. Can you analyze the draft below and deliver an SEO analysis report? It should include a numeric overall score, keyword tracking metrics, top quick wins, readability stats (ease score, passive voice percentage, average sentence length), rewritten meta title and description suggestions, structural assessment, critical/high priority fixes with concrete examples, internal linking opportunities, and an end-of-report implementation checklist.

What was checked, without and with the skill
Checked	Without skill	With skill
Includes Flesch Reading Ease score evaluation against the 60-70 target range.	Missed	Passed
Assesses average sentence length against the under 20 words benchmark.	Missed	Passed

case-02 · gemini-3.6-flash · 8/24/2026 · 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.

When a user asks you 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 → multiple H2 → H3)
Verify keyword usage in headings
Evaluate heading descriptiveness
Check paragraph length (aim for <150 words)
Assess overall scanability

3. Readability Analysis

Calculate readability metrics:

Flesch Reading Ease score (aim for 60-70)
Grade level estimation
Average sentence length (aim for <20 words)
Passive voice percentage (minimize)
Transition word usage
Paragraph structure

4. Technical SEO Elements

Generate optimized meta elements:

Meta Title: 50-60 characters with primary keyword

Track record

Benchmark

6 / 24

test cases passed, vs 18 / 24 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

nicepkg / ai-workflow

workflows/marketing-pro-workflow/.claude/skills/seo-optimizer/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

SEO Content Optimizer

Instructions

1. Analyze Target Keywords

2. Evaluate Content Structure

3. Readability Analysis

4. Technical SEO Elements

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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