30x-seo-sitemap

30x-seo-sitemap is a skill for Claude Code from norahe0304-art/30x-seo. It costs 52 tokens per session (871 once invoked), scanned A, original, MIT.

A tool for checking or creating XML sitemaps. An XML sitemap is a file that lists website pages so search engines can find and understand them.

In plain words
What is it for?
It validates existing sitemaps, compares them with crawled pages, and creates new sitemaps using templates for different types of websites.
Why use it?
It finds invalid, broken, redirected, duplicate, or incorrectly listed pages before they cause search-engine crawling problems.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions CLAUDE.md.

Good fit It validates existing sitemaps, compares them with crawled pages, and creates new sitemaps using templates for different types of websites.

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Install with agentmods
npx agentmods add skills/norahe0304-art/30x-seo/30x-seo-sitemap
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 norahe0304-art/30x-seo --skill 30x-seo-sitemap
Clone the repo
git clone --depth 1 https://github.com/norahe0304-art/30x-seo

Made for: Claude Code.

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 30x-seo-sitemap

README.md
[![agentmods](https://agentmods.dev/badge/skills/norahe0304-art/30x-seo/30x-seo-sitemap/github.svg)](https://agentmods.dev/skills/norahe0304-art/30x-seo/30x-seo-sitemap)
Your own site
<a href="https://agentmods.dev/skills/norahe0304-art/30x-seo/30x-seo-sitemap"><img src="https://agentmods.dev/badge/skills/norahe0304-art/30x-seo/30x-seo-sitemap/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 30x-seo-sitemap

Your own site · 80×15
<a href="https://agentmods.dev/skills/norahe0304-art/30x-seo/30x-seo-sitemap"><img src="https://agentmods.dev/badge/skills/norahe0304-art/30x-seo/30x-seo-sitemap.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 871 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 $0.00052 $0.00871
Opus 5 $0.00026 $0.00436
Sonnet 5 $0.00010 $0.00174
Haiku 4.5 $0.00005 $0.00087

Measured 12d ago against content hash 9ca7a4fdd5af, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

30x-seo-sitemap 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

skills/30x-seo-sitemap/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sitemap Analysis & Generation

Mode 1: Analyze Existing Sitemap

Validation Checks

  • Valid XML format
  • URL count <50,000 per file (protocol limit)
  • All URLs return HTTP 200
  • <lastmod> dates are accurate (not all identical)
  • No deprecated tags: <priority> and <changefreq> are ignored by Google
  • Sitemap referenced in robots.txt
  • Compare crawled pages vs sitemap — flag missing pages

Quality Signals

  • Sitemap index file if >50k URLs
  • Split by content type (pages, posts, images, videos)
  • No non-canonical URLs in sitemap
  • No noindexed URLs in sitemap
  • No redirected URLs in sitemap
  • HTTPS URLs only (no HTTP)

Common Issues

Issue Severity Fix
>50k URLs in single file Critical Split with sitemap index
Non-200 URLs High Remove or fix broken URLs
Noindexed URLs included High Remove from sitemap
Redirected URLs included Medium Update to final URLs
All identical lastmod Low Use actual modification dates
Priority/changefreq used Info Can remove (ignored by Google)

Mode 2: Generate New Sitemap

Process

  1. Ask for business type (or auto-detect from existing site)
  2. Load industry template from assets/ directory
  3. Interactive structure planning with user
  4. Apply quality gates:
    • ⚠️ WARNING at 30+ location pages (require 60%+ unique content)
    • 🛑 HARD STOP at 50+ location pages (require justification)
  5. Generate valid XML output
  6. Split at 50k URLs with sitemap index
  7. Generate STRUCTURE.md documentation

Safe Programmatic Pages (OK at scale)

✅ Integration pages (with real setup docs) ✅ Template/tool pages (with downloadable content) ✅ Glossary pages (200+ word definitions) ✅ Product pages (unique specs, reviews) ✅ User profile pages (user-generated content)

Penalty Risk (avoid at scale)

❌ Location pages with only city name swapped ❌ "Best [tool] for [industry]" without industry-specific value ❌ "[Competitor] alternative" without real comparison data ❌ AI-generated pages without human review and unique value

Read the full file on GitHub · 110 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 · 110 lines · 52 tokens per session scan A 9ca7a4fdd5af

Subscribe to this mod's changes

30x-seo-sitemap is a skill published in the GitHub repository norahe0304-art/30x-seo (51 stars, last pushed 6mo ago), licensed MIT. It adds 52 tokens to every session and 871 once invoked, about $0.0003 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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