audit-seo

audit-seo is a skill for Claude Code, Codex from dhaupin/vant. It costs 9 tokens per session (344 once invoked), scanned A, original, MIT.

A checklist for checking whether a website can be found by search engines. It covers indexing, the sitemap file that lists site URLs, and robots.txt, which tells crawlers what they may access.

In plain words
What is it for?
Use it before launching a page, after a traffic drop, or when checking whether indexing, sitemap, and crawler-access settings are correct.
Why use it?
It helps explain why a page is missing from search results and identifies configuration changes that can make it discoverable.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it before launching a page, after a traffic drop, or when checking whether indexing, sitemap, and crawler-access settings are correct.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dhaupin/vant/vant-skill-audit-seo
Install

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.

Any agent
npx skills add dhaupin/vant --skill vant-skill-audit-seo
Clone the repo
git clone --depth 1 https://github.com/dhaupin/vant

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for audit-seo

README.md
[![agentmods](https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-audit-seo/github.svg)](https://agentmods.dev/skills/dhaupin/vant/vant-skill-audit-seo)
Your own site
<a href="https://agentmods.dev/skills/dhaupin/vant/vant-skill-audit-seo"><img src="https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-audit-seo/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.

agentmods 80×15 button for audit-seo

Your own site · 80×15
<a href="https://agentmods.dev/skills/dhaupin/vant/vant-skill-audit-seo"><img src="https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-audit-seo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 9 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 344 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00009 $0.00344
Opus 5 $0.00005 $0.00172
Sonnet 5 $0.00002 $0.00069
Haiku 4.5 $0.00001 $0.00034

Measured 9d ago against content hash 7312ea58816c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

audit-seo 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 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl "https://www.google.com/search?q=site:yourdomain.com+page"
models/public/skills/vant-skill-audit-seo/SKILL.md · 100 lines

What it actually says

SEO Audit

Is it findable?


When To Use

  • New page
  • Before launch
  • Traffic drop

What To Check

1. Index

# Is it indexed?
curl "https://www.google.com/search?q=site:yourdomain.com+page"
Index Status
Yes Found
No Add to sitemap

2. Sitemap

<!-- sitemap.xml -->
<url>
  <loc>https://yoursite.com/page</loc>
</url>
Check Issue
File exists Add
Has URL Fix
Updated Refresh

3. Robots.txt

# robots.txt
User-agent: *
Allow: /
Check Issue
Allows crawler Fix
Blocks important Fix

Fixes

Issue Fix
Not indexed Add to sitemap
Blocked Allow in robots.txt
No meta Add meta tags

Output

## SEO Audit

### Index
- [INDEXED/NOT] page

### Sitemap
- [PRESENT/MISSING]

### Robots
- [ALLOWS/BLOCKS]

Role: SEO Auditor
Input: URL
Output: Findable?

Make it discoverable.

Changes

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.

  1. 9d ago First seen · 100 lines · 9 tokens per session scan A 7312ea58816c

Subscribe to this mod's changes

audit-seo is a skill published in the GitHub repository dhaupin/vant (9 stars, last pushed 10d ago), licensed MIT. It adds 9 tokens to every session and 344 once invoked, about $0.0000 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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