seo-page

seo-page is a skill for Claude Code from nowork-studio/notfair-plugin. It costs 229 tokens per session (5,054 once invoked), scanned A, original, MIT.

A detailed search-engine audit for one specific web page. It reviews content quality, trust signals, readability, page details, structured data, and how well the page matches what searchers want.

In plain words
What is it for?
Use it to evaluate a single URL's SEO, inspect its live HTML and metadata, review search performance, and plan on-page fixes.
Why use it?
It identifies page-level reasons for weak search performance and produces concrete improvements based on the page and available search data.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the notfair plugin — 52 skills, 1 MCP server shipped together

Good fit Use it to evaluate a single URL's SEO, inspect its live HTML and metadata, review search performance, and plan on-page fixes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nowork-studio/notfair-plugin/seo-page
About the project

NotFair Plugin is a collection of open-source SEO, generative-engine-optimization, and marketing workflows that AI agents can follow. It helps agents audit websites, analyze search and advertising data, plan campaigns, and make reviewable marketing changes; the catalogue entries are its skills, instructions, MCP connection, and plugin.

nowork-studio/notfair-plugin · 3,662 stars · on GitHub · notfair.co

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 nowork-studio/notfair-plugin --skill seo-page
Clone the repo
git clone --depth 1 https://github.com/nowork-studio/notfair-plugin

Made for: Claude Code.

Or install notfair, the plugin that ships this one along with the rest of its 52 skills, 1 MCP server.

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-page

README.md
[![agentmods](https://agentmods.dev/badge/skills/nowork-studio/notfair-plugin/seo-page.svg)](https://agentmods.dev/skills/nowork-studio/notfair-plugin/seo-page)
Your own site
<a href="https://agentmods.dev/skills/nowork-studio/notfair-plugin/seo-page"><img src="https://agentmods.dev/badge/skills/nowork-studio/notfair-plugin/seo-page.svg" alt="Measured on agentmods" height="20"></a>
Per session 229 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,054 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 $0.00229 $0.05054
Opus 5 $0.00114 $0.02527
Sonnet 5 $0.00046 $0.01011
Haiku 4.5 $0.00023 $0.00505

Measured 8d ago against content hash 22d890e4591d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

seo-page 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 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

DOMAIN=$(python3 -c "import sys; from urllib.parse import urlparse; print(urlparse(sys.argv[1]).netloc.lstrip('www.'))" "$PAGE_URL")
seo/seo-page/SKILL.md · 521 lines

How it starts

The opening of the file, as written. The whole thing — 521 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Single-Page SEO Analysis

You are a senior SEO content strategist and technical auditor. Your job is to evaluate a single page against industry-standard quality frameworks and produce a scored assessment with specific, actionable fixes.

This skill is laser-focused on one page. Unlike /seo-analysis which audits an entire site, this skill goes deep on content quality, E-E-A-T signals, search intent alignment, and on-page optimization for a single URL.


Step 0 — Get the Target Page URL

The user should provide a specific page URL (not just a domain). If they provide only a domain, ask which page they want analyzed:

"Which specific page do you want me to analyze? (e.g., https://example.com/blog/my-post). For a full-site audit, use /seo-analysis instead."

Store the URL as $PAGE_URL. Derive the domain:

DOMAIN=$(python3 -c "import sys; from urllib.parse import urlparse; print(urlparse(sys.argv[1]).netloc.lstrip('www.'))" "$PAGE_URL")
PAGE_PATH=$(python3 -c "import sys; from urllib.parse import urlparse; print(urlparse(sys.argv[1]).path)" "$PAGE_URL")

Phase 0 — Preflight & Data Gathering

Read and follow ../shared/preamble.md for script discovery and GSC auth.

If the user has no gcloud or wants to skip GSC, that's fine — the content quality evaluation works without GSC data. GSC enriches the analysis but isn't required.


Phase 1 — Parallel Data Collection

Launch all of these in a single turn using parallel tool calls:

1a. Fetch the page (WebFetch)

Fetch $PAGE_URL to get the full HTML. This is the primary input — everything else enriches it.

CSR fallback: After fetching, check if the <body> contains less than 500 characters of visible text (excluding script/style tags). If so, the page is likely client-side rendered (React, Next.js CSR, Vue SPA). In that case, use the /browse skill or a headless browser tool to render the page with JavaScript before continuing. Do not analyze an empty shell — you will produce garbage scores.

Read the full file on GitHub · 521 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 · 521 lines · 229 tokens per session scan A 22d890e4591d

Subscribe to this mod's changes

seo-page is a skill published in the GitHub repository nowork-studio/notfair-plugin (3,662 stars, last pushed 2d ago), licensed MIT. It adds 229 tokens to every session and 5,054 once invoked, about $0.0011 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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