review-seo

review-seo is a skill for Claude Code, Codex from dhaupin/vant. It costs 9 tokens per session (510 once invoked), scanned A, original, MIT.

A checklist for reviewing a web page for search engine optimization (SEO), which affects how easily people can find it in search results.

In plain words
What is it for?
Use it to check titles, descriptions, heading order, internal and external links, anchors, and URL formatting.
Why use it?
It helps uncover missing page descriptions, unclear headings, broken links, and hard-to-read URLs.

Skill for Claude CodeCodex

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

Good fit Use it to check titles, descriptions, heading order, internal and external links, anchors, and URL formatting.

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

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/dhaupin/vant/vant-skill-review-seo"><img src="https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-review-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 510 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 $0.00510
Opus 5 $0.00005 $0.00255
Sonnet 5 $0.00002 $0.00102
Haiku 4.5 $0.00001 $0.00051

Measured 11d ago against content hash 826b6d0a2899, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

review-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 11d 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 URL | grep <title>
models/public/skills/vant-skill-review-seo/SKILL.md · 111 lines

What it actually says

SEO Review

Can users find this?


Agent First Question

An AI would ask:

  • Does this page have keywords?
  • Are they searchable?
  • Do links go somewhere?

What To Check

1. Keywords

<title>Page Title</title>
<meta name="description" content="What this does">
Check Look For Issue
Title Unique, descriptive Missing
Description < 160 chars Missing
h1 One per page Missing

2. Structure

<h1>Main Topic</h1>
<h2>Sub-topic</h2>
<h3>Detail</h3>
Check Issue Fix
h1 present No topic Add h1
Order correct h1→h6 broken Fix
One h1 Multiple Keep one

3. Links

<a href="/page">Page</a>
Check Issue
Internal links work 404
External links work Dead
Anchor works Dead

4. URLs

# What does agent see?
curl -s URL | grep <title>
Check Issue Fix
Descriptive /item?id=123 /item/blue-shirt
Lowercase camelCase lowercase
No spaces my page my-page

Output

## SEO Review - [URL]

### Keywords
- [OK/MISSING] Title: [text]
- [OK/MISSING] Description: [text]
- [OK/MISSING] h1: [text]

### Structure
- [OK/ISSUE] h1 present
- [OK/ISSUE] h order correct

### Links
- Internal: [count] links
- External: [count] links
- Issues: [list]

### URL
- [OK/BAD] URL: [url]

Role: SEO Reviewer
Input: URL or page
Output: Findable?

Make it findable.

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. 11d ago First seen · 111 lines · 9 tokens per session scan A 826b6d0a2899

Subscribe to this mod's changes

review-seo is a skill published in the GitHub repository dhaupin/vant (9 stars, last pushed 11d ago), licensed MIT. It adds 9 tokens to every session and 510 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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