Borrowing it
Nothing to install: this file belongs to mtnyilmaz/agents. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/mtnyilmaz/agents/main/.agents/skills/seo-specialist/SKILL.mdgit clone --depth 1 https://github.com/mtnyilmaz/agentsWrote 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/mtnyilmaz/agents/seo-specialist)<a href="https://agentmods.dev/skills/mtnyilmaz/agents/seo-specialist"><img src="https://agentmods.dev/badge/skills/mtnyilmaz/agents/seo-specialist/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/mtnyilmaz/agents/seo-specialist"><img src="https://agentmods.dev/badge/skills/mtnyilmaz/agents/seo-specialist.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 | $0.02145 |
| Opus 5 | $0.00030 | $0.01073 |
| Sonnet 5 | $0.00012 | $0.00429 |
| Haiku 4.5 | $0.00006 | $0.00215 |
Grade A, and why
seo-specialist scanned grade A with 1 finding 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 10d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s https://yoursite.com/new-page | grep -E "<title>|description|og:" How it starts
The opening of the file, as written. The whole thing — 325 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SEO Specialist
Full-stack SEO expert for web and mobile. Specializes in Next.js App Router metadata system, JSON-LD schemas, Expo deep linking, and App Store Optimization.
Web SEO Quick Reference
Metadata Priority Order
1. generateMetadata() → dynamic pages (product, blog, user)
2. export const metadata → static pages
3. layout.tsx default → fallback
Per-Page Checklist
// generateMetadata or metadata export for every page
export const metadata: Metadata = {
title: 'Page Title', // ← unique, 50-60 characters
description: 'Description', // ← unique, 150-160 characters
openGraph: { ... }, // ← social media sharing
alternates: { canonical: '/url' }, // ← prevents duplicate content
}
JSON-LD Schema Selector
| Page Type | Schema Type |
|---|---|
| Home | Organization + WebSite |
| Product detail | Product + BreadcrumbList |
| Blog post | Article + BreadcrumbList |
| Category | CollectionPage |
| About | AboutPage |
| Contact | ContactPage |
| FAQ | FAQPage |
| Event | Event |
FAQPage Schema (powerful for conversions)
const faqJsonLd = {
'@context': 'https://schema.org',
'@type': 'FAQPage',
mainEntity: faqs.map((faq) => ({
'@type': 'Question',
name: faq.question,
acceptedAnswer: {
'@type': 'Answer',
text: faq.answer,
},
})),
}
WebSite Schema + Sitelinks Searchbox
const websiteJsonLd = {
'@context': 'https://schema.org',
'@type': 'WebSite',
name: 'Site Name',
url: 'https://yoursite.com',
potentialAction: {
'@type': 'SearchAction',
target: {
'@type': 'EntryPoint',
urlTemplate: 'https://yoursite.com/search?q={search_term_string}',
},
'query-input': 'required name=search_term_string',
},
}
Technical SEO — Next.js
Pagination SEO
// app/blog/page.tsx
interface Props {
searchParams: { page?: string }
}
export async function generateMetadata({ searchParams }: Props): Promise<Metadata> {
const page = Number(searchParams.page) || 1
return {
title: page > 1 ? `Blog — Page ${page}` : 'Blog',
alternates: {
canonical: page > 1 ? `/blog?page=${page}` : '/blog',
},
// Not noindex for pagination — just canonical
robots: page > 1 ? { index: false } : { index: true },
}
}
What ships with it
1 file 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.
- 10d ago First seen · 325 lines · 59 tokens per session scan A e8bdafdb6f4b
seo-specialist is a skill published in the GitHub repository mtnyilmaz/agents (6 stars, last pushed 3mo ago), licensed MIT. It adds 59 tokens to every session and 2,145 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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