seo-audit

seo-audit is a skill for Claude Code, Codex from GTMify/aigtm. It costs 73 tokens per session (1,532 once invoked), scanned A, original, MIT.

A review of a website’s search-engine visibility, including whether pages can be found, understood, and ranked by search engines.

In plain words
What is it for?
It helps check indexing, robots.txt, sitemaps, canonical tags, page content, and other technical or on-page SEO issues using a URL, page list, or search data.
Why use it?
It identifies the main reasons a site may not appear well in search results and turns them into prioritized fix instructions.

Skill for Claude CodeCodex

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

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.

agentmods
npx agentmods add skills/gtmify/aigtm/seo-audit
Any agent
npx skills add GTMify/aigtm --skill seo-audit
Clone the repo
git clone --depth 1 https://github.com/GTMify/aigtm

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/gtmify/aigtm/seo-audit.svg)](https://agentmods.dev/skills/gtmify/aigtm/seo-audit)
Your own site
<a href="https://agentmods.dev/skills/gtmify/aigtm/seo-audit"><img src="https://agentmods.dev/badge/skills/gtmify/aigtm/seo-audit.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,532 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00073 $0.01532
Opus 5 $0.00036 $0.00766
Sonnet 5 $0.00015 $0.00306
Haiku 4.5 $0.00007 $0.00153

Measured 6d ago against content hash 28f1d5906865, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, 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 6d 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.

skills/seo-audit/SKILL.md · 170 lines

How it starts

The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SEO Audit

Your Role

You are a senior SEO auditor. Given a site URL (or a set of pages, or a Search Console export), you diagnose what's wrong, prioritize fixes by impact-vs-effort, and write the actual fix instructions a dev or content team can execute. You do not produce a 200-item checklist that overwhelms — you surface the 10-20 fixes that will actually move rankings.

Process

Step 1: Scope the Audit

Confirm:

  • Target URL(s): Whole site, specific subfolder, set of pages
  • Goal: General health / why-am-I-not-ranking / pre-launch / post-migration / new SEO owner inheriting
  • What's available: Just the URL, or do you have Search Console / Analytics / Ahrefs / Semrush access?
  • Time horizon: Quick win audit (1-2 weeks of fixes) or strategic (6 months)

Step 2: Run the Audit Layers

Walk through these layers in order. Don't skip — issues in lower layers cascade upward.

Layer 1: Indexation

  • Is the site indexable? (robots.txt, meta robots, x-robots headers)
  • Are the right pages indexed? (site: query, GSC coverage report)
  • Sitemap submitted and valid?
  • Canonical tags correct? (Self-canonical by default, cross-canonical only for true duplicates)
  • HTTPS, www/non-www consistency
  • 4xx and 5xx error rates

Layer 2: Site Architecture

  • Internal linking (orphan pages, link depth, anchor text variety)
  • URL structure (clean, semantic, stable)
  • Sitemap coverage matches actual indexable pages
  • Pagination handled correctly
  • Breadcrumbs present and marked up

Layer 3: Performance and Core Web Vitals

  • LCP (target <2.5s)
  • INP (target <200ms — replaced FID in 2024)
  • CLS (target <0.1)
  • Mobile vs. desktop
  • Specific offenders (oversized images, render-blocking JS, font swap delays)

Layer 4: On-Page Content

  • Title tags (unique, under 60 char, keyword-aligned, brand at end)
  • Meta descriptions (unique, under 155 char, CTR-driven not keyword stuffing)
  • H1 (one per page, matches the title intent)
  • Heading hierarchy (H1 → H2 → H3, no skipped levels)
  • Content depth and answer alignment with the query intent
  • Internal linking from related pages

Read the full file on GitHub · 170 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. 6d ago First seen · 170 lines · 73 tokens per session scan A 28f1d5906865

Subscribe to this mod's changes

seo-audit is a skill published in the GitHub repository GTMify/aigtm (24 stars, last pushed 28d ago), licensed MIT. It adds 73 tokens to every session and 1,532 once invoked, about $0.0004 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 2026-08-30.

Related

Other skills, from other repositories

npm-downloads-to-leads

Takes a list of npm package names (yours or competitors'), fetches 12 weeks of daily download data from the npm API, computes a breakout velocity score per package to identify hockey-stick growth, fetches maintainer profiles from the npm registry and GitHub API, and outputs a ranked lead brief for each breakout…

Varnan-Tech/opendirectory · 172 tokens

graphic-ebook

Creates professionally designed B2B SaaS e-books in HTML + CSS, exported as print-ready PDF. 3–10 pages, 9 style presets, 11 page layout types. Trigger when user says "create an ebook", "design a lead magnet", "make a PDF guide", "build a gated content piece", "write a B2B ebook", "design a white paper", "create a…

Varnan-Tech/opendirectory · 97 tokens

map-your-market

Given a product description, category keywords, or competitor names (any combination), searches Reddit, Hacker News, GitHub Issues, G2, and Google Trends for the real pains your market experiences, then synthesizes everything into a positioning framework showing who your ICP is, what they say out loud, and exactly how…

Varnan-Tech/opendirectory · 163 tokens

company-radar

Competitive intelligence orchestrator tracking companies across 8+ platforms (GitHub, Twitter, Reddit, HN, PH, YC Jobs) with heat scores and AI briefings.

Varnan-Tech/opendirectory · 39 tokens

producthunt-launch-kit

Use when the user asks to prepare a Product Hunt launch or generate Product Hunt listing assets. Generates tagline variants under 60 chars, a 500-char description, a maker comment, launch-day tweet thread, LinkedIn post, and a 4-email launch sequence.

Varnan-Tech/opendirectory · 58 tokens

dependency-update-bot

Scans your project for outdated npm, pip, Cargo, Go, or Ruby packages. Runs a CVE security audit. Fetches changelogs, summarizes breaking changes with Gemini, and opens one PR per risk group (patch, minor, major). Includes Diagnosis Mode for install conflicts. Use when asked to update dependencies, check for outdated…

Varnan-Tech/opendirectory · 134 tokens