SEO Optimizer

SEO Optimizer is a skill for Claude Code, Codex from RudraDudhat2509/claude-skills. It costs 60 tokens per session (2,797 once invoked), scanned A, a copy of seo-optimizer, MIT.

A set of guidelines for improving how website content and code appear in search engines. SEO, or search engine optimisation, helps pages become easier for search services to understand and rank.

In plain words
What is it for?
Use it for keyword research, content planning, meta titles and descriptions, technical SEO audits, Core Web Vitals and page-speed improvements, and schema markup.
Why use it?
It helps find and address problems that can keep a website from appearing prominently in search results. This includes unclear content, missing page information, technical issues, slow loading, and missing structured data.

Skill for Claude CodeCodex

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

Good fit Use it for keyword research, content planning, meta titles and descriptions, technical SEO audits, Core Web Vitals and page-speed improvements, and schema markup.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rudradudhat2509/claude-skills/seo-optimizer
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 RudraDudhat2509/claude-skills --skill seo-optimizer
Clone the repo
git clone --depth 1 https://github.com/RudraDudhat2509/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.

agentmods badge for SEO Optimizer

README.md
[![agentmods](https://agentmods.dev/badge/skills/rudradudhat2509/claude-skills/seo-optimizer/github.svg)](https://agentmods.dev/skills/rudradudhat2509/claude-skills/seo-optimizer)
Your own site
<a href="https://agentmods.dev/skills/rudradudhat2509/claude-skills/seo-optimizer"><img src="https://agentmods.dev/badge/skills/rudradudhat2509/claude-skills/seo-optimizer/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 Optimizer

Your own site · 80×15
<a href="https://agentmods.dev/skills/rudradudhat2509/claude-skills/seo-optimizer"><img src="https://agentmods.dev/badge/skills/rudradudhat2509/claude-skills/seo-optimizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,797 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 100% copy Near-identical to another mod 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 $0.00060 $0.02797
Opus 5 $0.00030 $0.01399
Sonnet 5 $0.00012 $0.00559
Haiku 4.5 $0.00006 $0.00280

Measured 11d ago against content hash af636bb8931c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

SEO Optimizer 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 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.

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.

Origin

This is a copy

100% identical to seo-optimizer — 10 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

seo-optimizer/SKILL.md · 414 lines

How it starts

The opening of the file, as written. The whole thing — 414 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SEO Optimizer

Comprehensive guidance for search engine optimization across content, technical implementation, and strategic planning to improve organic search visibility and rankings.

When to Use This Skill

Use this skill when:

  • Optimizing website content for search engines
  • Conducting keyword research and analysis
  • Implementing technical SEO improvements
  • Creating SEO-friendly meta tags and descriptions
  • Auditing websites for SEO issues
  • Improving Core Web Vitals and page speed
  • Implementing schema markup (structured data)
  • Planning content strategy for organic traffic

SEO Fundamentals

1. Keyword Research & Strategy

Primary Keyword Selection:

  • Focus on search intent (informational, navigational, transactional, commercial)
  • Balance search volume with competition
  • Consider keyword difficulty and ranking potential
  • Target long-tail keywords for quick wins

Keyword Research Process:

1. Identify seed keywords from business objectives
2. Use tools to expand keyword list (Google Keyword Planner, Ahrefs, SEMrush)
3. Analyze search volume and difficulty
4. Group keywords by topic clusters
5. Map keywords to content types and pages
6. Prioritize based on potential ROI

Content Optimization Formula:

  • Primary keyword: 1-2% density (natural placement)
  • Include in: Title tag, H1, first paragraph, URL, meta description
  • Use semantic variations and related terms
  • Maintain natural readability (don't keyword stuff)

2. On-Page SEO

Title Tag Optimization:

<!-- Good: Descriptive, includes keyword, under 60 characters -->
<title>Ultimate Guide to React Hooks - Learn useEffect & useState</title>

<!-- Bad: Too long, keyword stuffing, generic -->
<title>React Hooks Guide React Hooks Tutorial React Hooks Examples Learn React</title>

Best Practices:

  • Keep under 60 characters (displayed in SERPs)
  • Place primary keyword near the beginning
  • Include brand name if space permits
  • Make compelling and click-worthy
  • Unique for every page

Read the full file on GitHub · 414 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 · 414 lines · 60 tokens per session scan A af636bb8931c

Subscribe to this mod's changes

SEO Optimizer is a skill published in the GitHub repository RudraDudhat2509/claude-skills (2 stars, last pushed 18d ago), licensed MIT. It adds 60 tokens to every session and 2,797 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to seo-optimizer, differing in 10 lines, and is treated as a copy.