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30x-seo-content-decay

30x-seo-content-decay

github.com/norahe0304-artMarketing & growth5662 installsUpdated 33w ago
Repository

About 30x-seo-content-decay

A content decay detection skill for SEO work. It evaluates URL lists or Google Search Console exports using traffic, ranking, CTR, publication-date, and content-timeliness signals, then prioritizes pages for refresh.

Key features

  1. 01Analyzes GSC export trends
  2. 02Checks URL lists for freshness signals
  3. 03Flags pages using stated decay criteria
  4. 04Prioritizes refresh recommendations
  5. 05Suggests light, medium, or heavy refreshes

Use cases

  1. 01Find declining pages from GSC data
  2. 02Review a URL list for outdated content
  3. 03Prioritize quarterly content refreshes

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/norahe0304-art/30x-seo --skill 30x-seo-content-decay

After installing, type/30x-seo-content-decayin Claude Code to confirm it loaded.

Details

From the project README

Content Decay Detection

Find declining old content that needs refresh

What is Content Decay

Content "rots" over time:

  • Information becomes outdated (2023 data is stale in 2026)
  • Competitors publish better content
  • Search intent changes
  • Google algorithm updates

Result: Rankings drop → Traffic drops → Revenue drops

Detection Criteria

MetricThresholdDescription
Publication Date>6 monthsNew content doesn't count as decay
Traffic ChangeDown >20%Compared to 3 months ago
Ranking ChangeDown >5 positionsPrimary keyword
CTR ChangeDown >15%Title may need updating

Trigger Refresh: Meeting any 2 criteria = needs refresh

Workflow

Method A: With GSC Data
User provides GSC export (CSV)
↓
Analyze each URL:
- Impression trends
- Click trends
- Average position trends
- CTR trends
↓
Identify decaying content
↓
Output refresh priority list
Method B: Without GSC Data
User provides URL list
↓
Check each page:
- Publication date / Last updated date
- Content timeliness signals (years, "latest", etc.)
- Competitor SERP analysis (your content vs Top 10)
↓
Identify potentially decaying content
↓
Output recommendation list

Output Format

# Content Decay Report

## High Priority Refresh (High Traffic Impact)

| Page | Published | Traffic Change | Rank Change | Issue | Recommendation |
|------|-----------|----------------|-------------|-------|----------------|
| /blog/best-crm-2024 | 2024-03 | -45% | -8 positions | Year outdated | Update to 2026 version |
| /guide/remote-work | 2023-11 | -30% | -5 positions | Tool recommendations outdated | Update tool list |

## Medium Priority Refresh

| Page | Published | Issue | Recommendation |
|------|-----------|-------|----------------|
| ... | ... | ... | ... |

## Refresh Recommendations

### /blog/best-crm-2024

**Problem Diagnosis**:
- Title contains "2024", outdated
- Pricing info may be inaccurate
- Missing 2025-2026 new features

**Refresh Checklist**:
- [ ] Update title to "Best CRM 2026"
- [ ] Verify all prices
- [ ] Add new tools (X, Y, Z)
- [ ] Update screenshots
- [ ] Check all external links are valid
- [ ] Update dateModified in Schema

**Estimated Impact**: Recover ~40% traffic

Refresh Strategies

Light Refresh (Quick Update)

When: Minor information outdated

  • Update years
  • Update prices/data
  • Fix dead links
  • Update dateModified
Medium Refresh (Content Update)

When: Content partially outdated

  • Rewrite outdated sections
  • Add new information
  • Update images/screenshots
  • Add new H2 sections
Heavy Refresh (Content Rewrite)

When: Content significantly outdated or intent changed

  • Re-analyze SERP intent
  • Rewrite most content
  • May need new content-brief
  • Keep URL (preserve 301 historical equity)

Usage

# With GSC data
/seo content-decay --gsc [csv-file]

# Without GSC, provide URL list
/seo content-decay --urls [url-list]

# Analyze entire site (crawl sitemap)
/seo content-decay https://example.com

Related Skills

UpstreamThis SkillDownstream
GSC data30x-seo-content-decay30x-seo-content-brief
sitemap↓ Identify decay30x-seo-content-writer
(refresh content)

Best Practices

  1. Regular checks: Run decay detection quarterly
  2. Prioritize high-value pages: Refresh high traffic/conversion pages first
  3. Keep URLs: Refresh rather than recreate, preserve historical equity
  4. Update dateModified: Tell Google content has been updated
  5. Internal link check: Check if internal links need updating after refresh

[PROTOCOL]: Update this header on changes, then check CLAUDE.md

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