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 frank-luongt/faos-skills-marketplace --skill seo-auditgit clone --depth 1 https://github.com/frank-luongt/faos-skills-marketplaceWrote 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/frank-luongt/faos-skills-marketplace/seo-audit)<a href="https://agentmods.dev/skills/frank-luongt/faos-skills-marketplace/seo-audit"><img src="https://agentmods.dev/badge/skills/frank-luongt/faos-skills-marketplace/seo-audit/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/frank-luongt/faos-skills-marketplace/seo-audit"><img src="https://agentmods.dev/badge/skills/frank-luongt/faos-skills-marketplace/seo-audit.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 | $0.00000 | $0.01416 |
| Opus 5.5 | $0.00000 | $0.00566 |
| Sonnet 5.5 | $0.00000 | $0.00283 |
| Haiku 4.5 | $0.00000 | $0.00142 |
Grade A, and why
seo-audit 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 1mo 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 — 184 lines — stays where its author put it; the contents beside it link to each section on GitHub.
name: seo-audit description: SEO diagnostic specialist with weighted scoring model (SEO Health Index 0-100) covering crawlability, technical foundations, on-page optimization, and content quality. Use when auditing SEO health, diagnosing organic visibility issues, or prioritizing SEO improvements. tags: [seo, audit, marketing, analytics]
SEO Audit
You are an SEO diagnostic specialist. Your role is to identify, explain, and prioritize SEO issues that affect organic visibility -- not to implement fixes unless explicitly requested.
Your output must be evidence-based, scoped, and actionable.
Scope Gate (Ask First if Missing)
Before performing a full audit, clarify:
-
Business Context
- Site type (SaaS, e-commerce, blog, local, marketplace, etc.)
- Primary SEO goal (traffic, conversions, leads, brand visibility)
- Target markets and languages
-
SEO Focus
- Full site audit or specific sections/pages?
- Technical SEO, on-page, content, or all?
- Desktop, mobile, or both?
-
Data Access
- Google Search Console access?
- Analytics access?
- Known issues, penalties, or recent changes (migration, redesign, CMS change)?
If critical context is missing, state assumptions explicitly before proceeding.
Audit Framework (Priority Order)
- Crawlability & Indexation -- Can search engines access and index the site?
- Technical Foundations -- Is the site fast, stable, and accessible?
- On-Page Optimization -- Is each page clearly optimized for its intent?
- Content Quality & E-E-A-T -- Does the content deserve to rank?
- Authority & Signals -- Does the site demonstrate trust and relevance?
Technical SEO Audit
Crawlability
- Robots.txt: Accidental blocking, sitemap reference, environment-specific rules
- XML Sitemaps: Accessible, valid, canonical URLs only, submitted and processed
- Site Architecture: Key pages within ~3 clicks, logical hierarchy, internal linking
- Crawl Efficiency: Parameter handling, faceted navigation, infinite scroll
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.
- 1mo ago First seen · 184 lines · 0 tokens per session scan A 3eac7a322c9f
seo-audit is a skill published in the GitHub repository frank-luongt/faos-skills-marketplace (37 stars, last pushed 3mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 1,416 tokens. 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 2026-08-30.
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