seo-audit

seo-audit is a skill for Claude Code, Codex from vercel-labs/marketing-team-eve-template. It costs 37 tokens per session (794 once invoked), scanned A, a copy of seo-audit, MIT.

A guide to reviewing a webpage or website for search-engine visibility, content quality, and credibility. SEO, or search-engine optimisation, is the work of helping relevant pages appear in unpaid search results.

In plain words
What is it for?
Use it to check indexing controls, redirects, HTTPS, mobile rendering, speed, titles, descriptions, headings, links, content depth, sources, and external references.
Why use it?
It puts fixes in the right order: a page that cannot be found or indexed will not benefit from better headings or keywords.

Skill for Claude CodeCodex ✓ vendor

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

Good fit Use it to check indexing controls, redirects, HTTPS, mobile rendering, speed, titles, descriptions, headings, links, content depth, sources, and external references.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vercel-labs/marketing-team-eve-template/seo-audit
About the project

vercel-labs/marketing-team-eve-template is a deployable team of AI marketing agents led by a coordinating agent that delegates launches, writing, and conversion work to specialists. Teams use it through Slack or a terminal to create blog drafts, social posts, and email campaigns in Notion, Typefully, and Resend, with approval required for irreversible actions. The catalogue skills and instructions define workflows for using this marketing team.

vercel-labs/marketing-team-eve-template · 436 stars · on GitHub · vercel.com

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 vercel-labs/marketing-team-eve-template --skill seo-audit
Clone the repo
git clone --depth 1 https://github.com/vercel-labs/marketing-team-eve-template

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 seo-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/vercel-labs/marketing-team-eve-template/seo-audit/github.svg)](https://agentmods.dev/skills/vercel-labs/marketing-team-eve-template/seo-audit)
Your own site
<a href="https://agentmods.dev/skills/vercel-labs/marketing-team-eve-template/seo-audit"><img src="https://agentmods.dev/badge/skills/vercel-labs/marketing-team-eve-template/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.

agentmods 80×15 button for seo-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/vercel-labs/marketing-team-eve-template/seo-audit"><img src="https://agentmods.dev/badge/skills/vercel-labs/marketing-team-eve-template/seo-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 794 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 95% copy Near-identical to another mod 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 $0.00037 $0.00794
Opus 5 $0.00018 $0.00397
Sonnet 5 $0.00007 $0.00159
Haiku 4.5 $0.00004 $0.00079

Measured 13d ago against content hash 968447ef236c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

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 13d 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.

Origin

This is a copy

95% identical to seo-audit — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agent/subagents/seo/skills/seo-audit/SKILL.md · 47 lines

How it starts

The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SEO audit

Audit in priority order, because the layers depend on each other. A page that can't be indexed doesn't benefit from a better title.

  1. Can it be found and indexed? Robots rules, canonical tags, noindex, redirect chains.
  2. Is the foundation sound? HTTPS, mobile rendering, speed, URL structure.
  3. Is the page optimized? Title, meta description, headings, keyword alignment, internal links, images.
  4. Does it deserve to rank? Depth, first-hand experience, sourcing, whether it beats what already ranks.
  5. Does it have credibility? Who links to it, who cites it.

Work down the list and stop where the evidence stops. Most asks are answered at layers 3 and 4.

What a fetch can and can't tell you

web_fetch returns the server's HTML as text. Everything you report as observed has to come from that, from a source you read, or from the caller.

Readable from a fetch: title tag, meta description, heading order and text, body copy, visible links and their anchor text, canonical tag, robots meta, hreflang in the HTML head, server-rendered JSON-LD, robots.txt and sitemap.xml when you fetch them directly.

Not readable, so not yours to assert: anything JavaScript injects after load, Core Web Vitals and any speed measurement, whether Google has actually indexed a URL, rank position, search volume, traffic, backlink counts, and whole-site facts like orphan pages or crawl budget that need a crawl you can't run.

The trap worth naming: CMS SEO plugins commonly inject JSON-LD client side, so a fetch shows no schema on a page that has plenty. Never conclude "no schema" from a fetch. Report that the server HTML carried none, and send them to the Rich Results Test at https://search.google.com/test/rich-results, which renders JavaScript.

For a check you can't run, name the check and the tool rather than skipping it silently. Search Console covers index coverage and queries; PageSpeed Insights covers Core Web Vitals; a crawler like Screaming Frog covers site-wide structure.

Read the full file on GitHub · 47 lines

Files

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.

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. 13d ago First seen · 47 lines · 37 tokens per session scan A 968447ef236c

Subscribe to this mod's changes

seo-audit is a skill published in the GitHub repository vercel-labs/marketing-team-eve-template (436 stars, last pushed 23d ago), licensed MIT. It adds 37 tokens to every session and 794 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to seo-audit, differing in 2 lines, and is treated as a copy.

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