30x seo content decay

Skill square-lupus579/30x-seo/skills/30x-seo-content-decay

Deliver comprehensive SEO automation with 24 AI-powered skills covering audits, technical SEO, content, links, local SEO, and keyword research.

Install

npx -y skills add square-lupus579/30x-seo --skill 30x-seo-content-decay

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Detect content decay - old content losing rankings/traffic that needs refresh. Identifies pages published >6 months ago with declining performance. Outputs refresh priority list with specific update recommendations.

SKILL.md

4.1 KB, 939 tokens by cl100k_base, as published. Nobody here has run it

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Information becomes outdated (2023 data is stale in 2026)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

Metric	Threshold	Description
Publication Date	>6 months	New content doesn't count as decay
Traffic Change	Down >20%	Compared to 3 months ago
Ranking Change	Down >5 positions	Primary keyword
CTR Change	Down >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| /blog/best-crm-2024 | 2024-03 | -45% | -8 positions | Year outdated | Update to 2026 version |
| /guide/remote-work | 2023-11 | -30% | -5 positions | Tool recommendations outdated | Update tool list |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- Title contains "2024", outdated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

Upstream	This Skill	Downstream
GSC data	30x-seo-content-decay	30x-seo-content-brief
sitemap	↓ Identify decay	30x-seo-content-writer
		(refresh content)

Best Practices

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

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

Gives 0 of the 12 instructions most seo skills give in 939 tokens

Counted across 454 of the 460 authors here whose files we hold, read 2026-08-07

implement structured data using JSON-LDin 29 of 454, across 25 files
write unique meta descriptions under 160 charactersin 25 of 454, across 20 files
verify one H1 exists per pagein 24 of 454, across 15 files
maintain a single h1 per pagein 24 of 454, across 15 files
use JSON-LD format for all schema markupin 23 of 454, across 16 files
use descriptive anchor text for internal linksin 22 of 454, across 18 files
add descriptive alt text to imagesin 19 of 454, across 15 files
read product marketing context before auditingin 19 of 454, across 11 files
write unique title tags under 60 charactersin 19 of 454, across 14 files
add unique title and meta description per pagein 19 of 454, across 17 files
fetch robots.txt and sitemap.xmlin 19 of 454, across 18 files
Place the primary keyword in the first 100 wordsin 18 of 454, across 17 files

Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.