What is seo-optimization?

A set of instructions for improving how web pages appear in search engines and AI search tools. SEO means making content and site structure easier for search systems to understand and rank.

Use it to improve titles, descriptions, headings, structured data, social sharing information, page speed, and other search-related details.

It helps address problems such as unclear page structure, missing metadata, poor search visibility, and weak support for search-generated summaries.

seo-optimization — Skill for Claude Code and Codex by mujez

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 mujez/claude-skills --skill seo-optimization

Clone the repo

git clone --depth 1 https://github.com/mujez/claude-skills

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/mujez/claude-skills/seo-optimization/github.svg)](https://agentmods.dev/skills/mujez/claude-skills/seo-optimization)

Your own site

<a href="https://agentmods.dev/skills/mujez/claude-skills/seo-optimization"><img src="https://agentmods.dev/badge/skills/mujez/claude-skills/seo-optimization/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/mujez/claude-skills/seo-optimization"><img src="https://agentmods.dev/badge/skills/mujez/claude-skills/seo-optimization.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,624 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.

Model	Per session	Once invoked
Fable 5.1	$0.00063	$0.01624
Opus 5.5	$0.00025	$0.00650
Sonnet 5.5	$0.00013	$0.00325
Haiku 4.5	$0.00006	$0.00162

Measured 2mo ago against content hash ad788aff4175, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

seo-optimization 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 2mo 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-optimization/SKILL.md · 204 lines

How it starts

The opening of the file, as written. The whole thing — 204 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are operating as a Senior SEO & Content Strategist with 10+ years of experience optimizing for both traditional search engines (Google, Bing) and AI-powered search platforms (ChatGPT, Perplexity, Google AI Overviews, Bing Copilot).

Core Principles

Content-first - Quality, comprehensive content that genuinely answers user intent
Technical foundation - Fast, crawlable, properly structured sites
E-E-A-T - Experience, Expertise, Authoritativeness, Trustworthiness
AI-ready - Structured content that AI systems can parse, cite, and summarize
Measurement - Data-driven decisions with clear KPIs

On-Page SEO Checklist

Title Tags

Primary keyword near the beginning
50-60 characters max
Unique per page
Include brand name at end: Primary Keyword - Secondary | Brand
Compelling for CTR (use numbers, power words)

Meta Descriptions

150-160 characters
Include primary + secondary keywords naturally
Clear value proposition and CTA
Unique per page
Match search intent

Headings

One <h1> per page containing primary keyword
Logical hierarchy: h1 > h2 > h3
Use h2s for major sections (target related keywords)
Use h3s for subsections
Include question-format headings for featured snippets

Content Structure

Above the fold: Answer the core query immediately
Inverted pyramid: Most important info first
Short paragraphs (2-3 sentences)
Bullet lists and numbered lists for scanability
Bold key terms and phrases
Internal links to related content (3-5 per 1000 words)
External links to authoritative sources (2-3 per page)

URL Structure

Short, descriptive, lowercase
Include primary keyword
Use hyphens (not underscores)
No parameters or session IDs
Logical hierarchy: /category/subcategory/page-name

Technical SEO

Core Web Vitals

LCP (Largest Contentful Paint) < 2.5s
INP (Interaction to Next Paint) < 200ms
CLS (Cumulative Layout Shift) < 0.1

Crawlability

XML sitemap at /sitemap.xml (auto-updated)
robots.txt properly configured
Canonical tags on all pages
Proper 301 redirects (no chains)
No broken links (404s)
Hreflang for multilingual sites
Clean internal linking architecture

Read the full file on GitHub · 204 lines

Files

What ships with it

1 file 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.

references/technical-seo.md 4.5 KB

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.

2mo ago First seen · 204 lines · 63 tokens per session scan A ad788aff4175

Subscribe to this mod's changes

seo-optimization is a skill published in the GitHub repository mujez/claude-skills (47 stars, last pushed 8mo ago), licensed MIT. It adds 63 tokens to every session and 1,624 once invoked, about $0.0003 per session on Opus 5.5. 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.

Marketing and SEO

seo-optimization next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
seo-optimizationmujez/claude-skills	Skill	47	8mo ago	MIT	A	63	Claude Code, Codex
imagegenopenai/codex	Skill	133k	yesterday	Apache-2.0	A	113	Codex
playwright-climicrosoft/playwright	Skill	99k	yesterday	Apache-2.0	A	19	Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
systematic-debuggingobra/superpowers	Skill	313k	3d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	103	Claude Code