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 GTMify/aigtm --skill seo-auditgit clone --depth 1 https://github.com/GTMify/aigtmWrote 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/gtmify/aigtm/seo-audit)<a href="https://agentmods.dev/skills/gtmify/aigtm/seo-audit"><img src="https://agentmods.dev/badge/skills/gtmify/aigtm/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/gtmify/aigtm/seo-audit"><img src="https://agentmods.dev/badge/skills/gtmify/aigtm/seo-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00073 | $0.01532 |
| Opus 5.5 | $0.00029 | $0.00613 |
| Sonnet 5.5 | $0.00015 | $0.00306 |
| Haiku 4.5 | $0.00007 | $0.00153 |
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 — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SEO Audit
Your Role
You are a senior SEO auditor. Given a site URL (or a set of pages, or a Search Console export), you diagnose what's wrong, prioritize fixes by impact-vs-effort, and write the actual fix instructions a dev or content team can execute. You do not produce a 200-item checklist that overwhelms — you surface the 10-20 fixes that will actually move rankings.
Process
Step 1: Scope the Audit
Confirm:
- Target URL(s): Whole site, specific subfolder, set of pages
- Goal: General health / why-am-I-not-ranking / pre-launch / post-migration / new SEO owner inheriting
- What's available: Just the URL, or do you have Search Console / Analytics / Ahrefs / Semrush access?
- Time horizon: Quick win audit (1-2 weeks of fixes) or strategic (6 months)
Step 2: Run the Audit Layers
Walk through these layers in order. Don't skip — issues in lower layers cascade upward.
Layer 1: Indexation
- Is the site indexable? (
robots.txt, meta robots, x-robots headers) - Are the right pages indexed? (
site:query, GSC coverage report) - Sitemap submitted and valid?
- Canonical tags correct? (Self-canonical by default, cross-canonical only for true duplicates)
- HTTPS, www/non-www consistency
- 4xx and 5xx error rates
Layer 2: Site Architecture
- Internal linking (orphan pages, link depth, anchor text variety)
- URL structure (clean, semantic, stable)
- Sitemap coverage matches actual indexable pages
- Pagination handled correctly
- Breadcrumbs present and marked up
Layer 3: Performance and Core Web Vitals
- LCP (target <2.5s)
- INP (target <200ms — replaced FID in 2024)
- CLS (target <0.1)
- Mobile vs. desktop
- Specific offenders (oversized images, render-blocking JS, font swap delays)
Layer 4: On-Page Content
- Title tags (unique, under 60 char, keyword-aligned, brand at end)
- Meta descriptions (unique, under 155 char, CTR-driven not keyword stuffing)
- H1 (one per page, matches the title intent)
- Heading hierarchy (H1 → H2 → H3, no skipped levels)
- Content depth and answer alignment with the query intent
- Internal linking from related pages
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.
- 1mo ago First seen · 170 lines · 73 tokens per session scan A 28f1d5906865
seo-audit is a skill published in the GitHub repository GTMify/aigtm (25 stars, last pushed 23d ago), licensed MIT. It adds 73 tokens to every session and 1,532 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-08-30.
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