Seo-Promt-Master: Skill for Claude Code

.claude/skills/seo-audit/SKILL.md

seo-audit is a skill for Claude Code from umutxyp/Seo-Promt-Master. It costs 108 tokens per session (1,208 once invoked), scanned A, original, MIT.

A skill for checking and repairing a website's technical search-engine setup and readiness for AI search. It follows Google's documented guidance and checks each public page.

In plain words
What is it for?
Use it to audit or fix crawling and indexing, canonical URLs, hreflang language links, sitemaps, structured data, and page-level SEO. It produces a computed SEO and AI-search score.
Why use it?
It helps find problems that can stop pages from being crawled or indexed, such as incorrect canonical URLs, language settings, sitemaps, or structured data. It also compares the site's code with what its server actually delivers.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is umutxyp/Seo-Promt-Master's own configuration. It tells Claude Code how to work on Seo-Promt-Master itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Seo-Promt-Master configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node tools/seo-audit.mjs --url https://the-site.example --max 40 --md seo-report.md.

Reuse

Borrowing it

Nothing to install: this file belongs to umutxyp/Seo-Promt-Master. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/umutxyp/Seo-Promt-Master/main/.claude/skills/seo-audit/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/umutxyp/Seo-Promt-Master

Made for: Claude Code.

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/umutxyp/seo-promt-master/seo-audit/github.svg)](https://agentmods.dev/skills/umutxyp/seo-promt-master/seo-audit)
Your own site
<a href="https://agentmods.dev/skills/umutxyp/seo-promt-master/seo-audit"><img src="https://agentmods.dev/badge/skills/umutxyp/seo-promt-master/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/umutxyp/seo-promt-master/seo-audit"><img src="https://agentmods.dev/badge/skills/umutxyp/seo-promt-master/seo-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 108 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,208 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00108 $0.01208
Opus 5 $0.00054 $0.00604
Sonnet 5 $0.00022 $0.00242
Haiku 4.5 $0.00011 $0.00121

Measured 11d ago against content hash 3fd7a1fb57bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

seo-audit 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.

and seen the change — `curl` the route, grep the rendered output, or re-run
.claude/skills/seo-audit/SKILL.md · 92 lines

How it starts

The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SEO audit and repair

You are running SEO Prompt Master. Bring every public page of the project in the working directory into compliance with Google's documented guidance, and prove it rather than asserting it.

Before anything else

Read docs/README.md for the map, then keep docs/ open as you work. It is the only source of truth in this skill. If a claim about how Google behaves is not in docs/01docs/17, say "not covered by the knowledge base" instead of recalling it from memory — the SEO web is full of advice that was true in 2021.

Check verticals/README.md for an overlay matching the project's industry. It adds emphasis; it never replaces the core audit.

Two ways to learn what is wrong, and you need both

Read the code to know what the project intends. Run the tool to know what the server actually does. They disagree more often than anyone expects, and the gap is where the bugs live.

node tools/seo-audit.mjs --url https://the-site.example --max 40 --md seo-report.md

Zero dependencies, Node 18+. It samples across the sitemap rather than the head of it, then checks robots.txt against RFC 9309, sitemap limits and lastmod credibility, host consolidation, per-template soft 404s, canonical self-reference, hreflang reciprocity across pages (a one-way set is discarded in full), duplicate titles, streamed-metadata visibility, raw-HTML content volume, structured-data validity, and image dimensions. It exits 1 if any P1 is open, so it can gate a deploy.

Point it at a local build (--url http://localhost:3000) when there is no live site yet.

Three things it deliberately cannot see, which stay your job: whether the content is any good (docs/14), off-page authority (docs/17), and real field CWV data, which only CrUX has (docs/05).

The workflow

Follow START.md, which holds the full phase-by-phase instructions:

Phase File Output
0 — Bootstrap & detect prompts/00-bootstrap.md Stack report
1 — Discover routes prompts/01-discover-routes.md ROUTES-INVENTORY.md
2 — Audit each page prompts/02-audit-page.md SEO-AUDIT-PROGRESS.md
3 — Prioritise prompts/03-prioritize-fixes.md P1/P2/P3 backlog + baseline score
4 — Fix & verify prompts/04-apply-and-verify.md Fixes, each with evidence
5 — Live signals (optional) prompts/05-live-signals.md Field data, if a live URL exists

Read the full file on GitHub · 92 lines

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 · 92 lines · 108 tokens per session scan A 3fd7a1fb57bb

Subscribe to this mod's changes

seo-audit is a skill published in the GitHub repository umutxyp/Seo-Promt-Master (547 stars, last pushed 27d ago), licensed MIT. It adds 108 tokens to every session and 1,208 once invoked, about $0.0005 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 2026-08-30.

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