seo-audit-v2

seo-audit-v2 is a skill for Claude Code from olelehmann1337/workshop-plugin. It costs 148 tokens per session (1,926 once invoked), scanned A, original, MIT.

A webpage SEO checker that reviews search-related details such as the title, description, headings, canonical link, social cards, structured data, image descriptions, and internal links.

In plain words
What is it for?
Use it to audit one or more public webpages before launch, investigate ranking concerns, and identify on-page SEO problems.
Why use it?
It turns a broad SEO review into a prioritized list of page fixes with code snippets, without requiring extra software or browser automation.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Claude Code.

Part of the marketing-os-workshop plugin — 21 skills shipped together

Good fit Use it to audit one or more public webpages before launch, investigate ranking concerns, and identify on-page SEO problems.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/olelehmann1337/workshop-plugin/seo-audit-v2
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 olelehmann1337/workshop-plugin --skill seo-audit-v2
Clone the repo
git clone --depth 1 https://github.com/olelehmann1337/workshop-plugin

Made for: Claude Code.

Or install marketing-os-workshop, the plugin that ships this one along with the rest of its 21 skills.

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-v2

README.md
[![agentmods](https://agentmods.dev/badge/skills/olelehmann1337/workshop-plugin/seo-audit-v2.svg)](https://agentmods.dev/skills/olelehmann1337/workshop-plugin/seo-audit-v2)
Your own site
<a href="https://agentmods.dev/skills/olelehmann1337/workshop-plugin/seo-audit-v2"><img src="https://agentmods.dev/badge/skills/olelehmann1337/workshop-plugin/seo-audit-v2.svg" alt="Measured on agentmods" height="20"></a>
Per session 148 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,926 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 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 $0.00148 $0.01926
Opus 5 $0.00074 $0.00963
Sonnet 5 $0.00030 $0.00385
Haiku 4.5 $0.00015 $0.00193

Measured 8d ago against content hash d08127d361aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

seo-audit-v2 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 8d 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.

plugins/marketing-os-workshop/skills/seo-audit-v2/SKILL.md · 168 lines

How it starts

The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SEO Audit

Most SEO tools promise 148 rules and deliver a PDF nobody reads. For a non-technical marketer, the ranking wins live in about 20 of those rules: title, meta, H1, canonical, social cards, schema, alt text, internal links. This skill checks exactly those, on any URL, with nothing to install.


the core job

Pull a public webpage's HTML, parse the on-page SEO signals, grade the result A-F, and hand back a priority-ordered fix list with exact code snippets. Every audit ends with a clear "what I did NOT check" disclosure so the user knows where the audit's edges are.

Output format: A single markdown report per URL (or one summary + per-URL reports for multi-page runs). Graded, prioritized P0-P3, with copy-paste fixes.


before starting: gather context

STOP. Do not start fetching or parsing until every field below is confirmed with the user. Ask for any missing field first. Do not guess the URL, do not assume single vs multi-page.

  1. Target URL(s) — Which URL? Up to 10 for a batch. (Required — without this there's nothing to audit.)
  2. Specific concern — Anything they're worried about? Like "we dropped in Google rankings last week" or "I just redesigned this page." (Optional, but changes which findings get lead-billing in the report.)
  3. Target keyword — Is there a specific keyword they're trying to rank for on this page? (Optional, but unlocks title/H1/meta keyword checks.)

Once confirmed, before running WebFetch, state the audit's scope caveat in one line so they don't walk away with wrong expectations:

"This covers on-page SEO only — no Core Web Vitals, page speed, or security headers. If you need those, run Google PageSpeed Insights on the same URL."


fetch: pull the page and its robots/sitemap

For each URL:

  1. WebFetch the page itself.
  2. WebFetch https://{domain}/robots.txt
  3. WebFetch https://{domain}/sitemap.xml (or whatever the robots.txt Sitemap: directive points to)

Sanity check before parsing: Confirm the HTML contains real content. If the <body> is empty or contains only <script> tags (common on React/Vue SPAs without SSR), stop and tell the user:

Read the full file on GitHub · 168 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. 8d ago First seen · 168 lines · 148 tokens per session scan A d08127d361aa

Subscribe to this mod's changes

seo-audit-v2 is a skill published in the GitHub repository olelehmann1337/workshop-plugin (7 stars, last pushed 4mo ago), licensed MIT. It adds 148 tokens to every session and 1,926 once invoked, about $0.0007 per session on Opus 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 2026-08-31.

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