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 rampstackco/claude-skills-seo --skill seo-technicalgit clone --depth 1 https://github.com/rampstackco/claude-skills-seoWrote 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/rampstackco/claude-skills-seo/seo-technical)<a href="https://agentmods.dev/skills/rampstackco/claude-skills-seo/seo-technical"><img src="https://agentmods.dev/badge/skills/rampstackco/claude-skills-seo/seo-technical/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/rampstackco/claude-skills-seo/seo-technical"><img src="https://agentmods.dev/badge/skills/rampstackco/claude-skills-seo/seo-technical.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 | $0.00170 | $0.01526 |
| Opus 5 | $0.00085 | $0.00763 |
| Sonnet 5 | $0.00034 | $0.00305 |
| Haiku 4.5 | $0.00017 | $0.00153 |
Grade A, and why
seo-technical 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 9d 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.
This is a copy
89% identical to seo-technical — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Technical SEO
Audit and fix the layer beneath the content: how search engines crawl, render, index, and trust a site. Stack-agnostic.
When to use
- Site-wide audit before or after a migration
- Investigating indexing or ranking drops
- Setting up SEO foundations on a new site
- Auditing Core Web Vitals or page experience signals
- Fixing crawl waste, redirect chains, or canonical issues
- Setting up multilingual or multi-regional sites
When NOT to use
- Single-page on-page optimization (use
seo-onpage) - Keyword strategy or content planning (use
seo-keyword) - Competitor backlink or SERP analysis (use
seo-competitor) - Pure performance optimization without SEO context (use
performance-optimization)
Required inputs
- The site URL or staging URL
- Access to (at minimum) view the rendered HTML, robots.txt, and sitemap
- Ideally: search console access, server logs, and a crawler
If the site is large (10K+ URLs), confirm whether the audit is a full crawl or a sample.
The framework: 6 layers
Technical SEO has six layers, stacked. A failure in a lower layer breaks everything above it.
1. Crawlability
Can search engines access the URLs?
- robots.txt does not block important paths
- No accidental
noindexon indexable pages - No accidental
disallowpatterns blocking CSS or JS (rendering breaks) - Sitemap is present, returns 200, and lists canonical URLs only
- Sitemap is referenced in robots.txt
- No infinite spaces (faceted nav generating endless URLs)
- Crawl budget is not wasted on low-value URLs
2. Indexability
Of crawlable URLs, which should be indexed?
- One canonical URL per piece of content (no duplicates)
- Canonical tags self-reference on canonical pages
noindexon staging, search results, filter pages, thank-you pages, internal admin- No mixed signals (canonical pointing one way, sitemap another, internal links a third)
- Pagination handled correctly (rel=next/prev is deprecated, but consistent canonicals matter)
- Parameter handling deliberate (UTM, session IDs, sort orders)
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago First seen · 155 lines · 170 tokens per session scan A 8b874b2a102a
seo-technical is a skill published in the GitHub repository rampstackco/claude-skills-seo (5 stars, last pushed 1mo ago), licensed MIT. It adds 170 tokens to every session and 1,526 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to seo-technical, differing in 6 lines, and is treated as a copy.
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