market-seo

market-seo is a skill for Claude Code, Codex from rediumvex/ai-marketing-claude. It costs 93 tokens per session (1,557 once invoked), scanned A, original, MIT.

An SEO audit skill checks a website’s page content, technical setup, and readiness for search results generated by tools such as Google, ChatGPT, and Perplexity.

In plain words
What is it for?
Use it to review a website’s search visibility and produce an SEO-AUDIT.md file with recommended fixes.
Why use it?
It brings common search problems into one prioritized document instead of leaving you to inspect titles, headings, metadata, structured data, and crawler files separately.

Skill for Claude CodeCodex

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

Good fit Use it to review a website’s search visibility and produce an SEO-AUDIT.md file with recommended fixes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rediumvex/ai-marketing-claude/market-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 rediumvex/ai-marketing-claude --skill market-seo
Clone the repo
git clone --depth 1 https://github.com/rediumvex/ai-marketing-claude

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 market-seo

README.md
[![agentmods](https://agentmods.dev/badge/skills/rediumvex/ai-marketing-claude/market-seo/github.svg)](https://agentmods.dev/skills/rediumvex/ai-marketing-claude/market-seo)
Your own site
<a href="https://agentmods.dev/skills/rediumvex/ai-marketing-claude/market-seo"><img src="https://agentmods.dev/badge/skills/rediumvex/ai-marketing-claude/market-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 market-seo

Your own site · 80×15
<a href="https://agentmods.dev/skills/rediumvex/ai-marketing-claude/market-seo"><img src="https://agentmods.dev/badge/skills/rediumvex/ai-marketing-claude/market-seo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 93 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,557 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 $0.00093 $0.01557
Opus 5 $0.00046 $0.00779
Sonnet 5 $0.00019 $0.00311
Haiku 4.5 $0.00009 $0.00156

Measured 12d ago against content hash 7f8056de2eab, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

market-seo 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 12d 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/market-seo/SKILL.md · 155 lines

How it starts

The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Market SEO — On-page, Technical, and AI Search Audit

Modern SEO has three surfaces: classic Google rankings, Core Web Vitals, and generative search (AI Overviews, ChatGPT browsing, Perplexity). This skill covers all three.

Workflow

  1. Run python3 scripts/analyze_page.py <url> to get title, meta, headings, schema, canonical, viewport, tracking.
  2. Fetch /robots.txt, /sitemap.xml, /llms.txt directly.
  3. Read the page content for E-E-A-T signals (author bio, citations, specific detail).
  4. Score each section, write the audit.

On-Page Checklist

Title tag

  • Present, unique, 50–60 chars
  • Primary keyword near the start
  • Brand at the end ( | Brand or — Brand)
  • Compelling enough to earn a click

Meta description

  • 140–160 chars
  • Includes the keyword naturally
  • Has a reason to click (outcome, differentiator, number)

Headings

  • Exactly one H1, contains the primary keyword, differs from the title
  • H2s describe sections and contain secondary keywords
  • No skipped levels (H2 → H4)

Images

  • Every content image has descriptive alt text
  • Decorative images have empty alt=""
  • Below-fold images use loading="lazy"
  • Filenames are descriptive (not IMG_0042.jpg)

Internal linking

  • 3–10 contextual links per 1,000 words
  • Descriptive anchor text (not "click here")
  • No orphan pages (should be linked from at least one relevant page)

URL structure

  • Human-readable, keyword-containing, under 75 chars, hyphens not underscores, lowercase

Technical SEO

Check Good Needs work Fail
HTTPS Valid cert Mixed content HTTP only
robots.txt Present, references sitemap, doesn't block CSS/JS Minor misconfig Blocks the whole site
sitemap.xml Present, all URLs 200, lastmod accurate Exists but stale Missing
Canonical Self-referencing or correct target Inconsistent Missing
Viewport meta Present Missing
Schema (JSON-LD) Organization + page-specific types Partial None
hreflang (if multilingual) Correct pairs Missing return links Missing entirely

Read the full file on GitHub · 155 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. 12d ago First seen · 155 lines · 93 tokens per session scan A 7f8056de2eab

Subscribe to this mod's changes

market-seo is a skill published in the GitHub repository rediumvex/ai-marketing-claude (38 stars, last pushed 5mo ago), licensed MIT. It adds 93 tokens to every session and 1,557 once invoked, about $0.0005 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.

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