Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add 01clauding/claude-seo-skill --skill seo-monitorgit clone --depth 1 https://github.com/01clauding/claude-seo-skillWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/01clauding/claude-seo-skill/seo-monitor)<a href="https://agentmods.dev/skills/01clauding/claude-seo-skill/seo-monitor"><img src="https://agentmods.dev/badge/skills/01clauding/claude-seo-skill/seo-monitor/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/01clauding/claude-seo-skill/seo-monitor"><img src="https://agentmods.dev/badge/skills/01clauding/claude-seo-skill/seo-monitor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00059 | $0.01619 |
| Opus 5 | $0.00030 | $0.00809 |
| Sonnet 5 | $0.00012 | $0.00324 |
| Haiku 4.5 | $0.00006 | $0.00162 |
Grade A, and why
seo-monitor scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 175 lines — stays where its author put it; the contents beside it link to each section on GitHub.
seo-monitor — SEO Monitoring & Alert System
Ranking Fluctuation Monitoring
Detection Rules
| Trigger | Severity | Action |
|---|---|---|
| Single keyword ≥5 position drop | 🟡 Medium | Investigate page changes |
| 3+ keywords drop simultaneously | 🟠 High | Check for algorithm update |
| Core keyword exits top 10 | 🟠 High | Priority optimization within 24h |
| Core keyword exits top 20 | 🟡 Medium | Content refresh + link building |
| 10+ keywords improve simultaneously | 🟢 Info | Document what worked |
Monitoring Frequency Guide
| Keyword Type | Check Frequency | Alert Threshold |
|---|---|---|
| Brand terms | Daily | Any drop from #1 |
| Core commercial | Every 3 days | ≥3 position change |
| Long-tail targets | Weekly | ≥5 position change |
| New content tracking | Daily for 30 days | Not indexed after 7 days |
Google Update Correlation
When volatility spikes:
- Check Google Search Status Dashboard
- Cross-reference with industry volatility tools (SEMrush Sensor, Moz MozCast)
- Identify pattern: site-wide vs topical vs page-level
- If confirmed update: document affected pages, defer changes 2-4 weeks until stable
Competitor Activity Monitoring
Content Monitoring
- New page detection: Compare competitor sitemap weekly, flag new URLs
- Content updates: Track last-modified dates on competing pages
- Topic expansion: Detect when competitors enter new topic areas
- Publishing velocity: Track competitor content output rate
Ranking Monitoring
- Position changes: Track competitor positions on your target keywords
- New keyword entries: Detect when competitors rank for keywords they previously didn't
- SERP feature captures: Monitor when competitors gain/lose featured snippets, PAA
Technical Monitoring
- Speed changes: Detect CWV improvements/degradation
- Schema additions: New structured data types deployed
- Site structure changes: New sections, navigation changes, URL restructures
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 12d ago First seen · 175 lines · 59 tokens per session scan A 1fbf23d00f98
seo-monitor is a skill published in the GitHub repository 01clauding/claude-seo-skill (4 stars, last pushed 6mo ago), licensed MIT. It adds 59 tokens to every session and 1,619 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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