seo-sitemap

seo-sitemap is a skill for Claude Code from BestLemoon/codex-seo. It costs 49 tokens per session (973 once invoked), scanned A, a copy of seo-sitemap, MIT.

A tool for checking existing XML sitemaps or generating new ones. An XML sitemap is a file that lists website URLs for search engines.

In plain words
What is it for?
Use it to validate sitemap files, check URL responses and dates, compare sitemap entries with crawled pages, and create sitemaps based on a business type.
Why use it?
It helps identify broken, redirected, duplicate, blocked, or missing URLs that can make a site's pages harder for search engines to discover.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Good fit Use it to validate sitemap files, check URL responses and dates, compare sitemap entries with crawled pages, and create sitemaps based on a business type.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/bestlemoon/codex-seo/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 BestLemoon/codex-seo --skill seo-sitemap
Clone the repo
git clone --depth 1 https://github.com/BestLemoon/codex-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 seo-sitemap

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/bestlemoon/codex-seo/seo-sitemap"><img src="https://agentmods.dev/badge/skills/bestlemoon/codex-seo/seo-sitemap.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 973 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 $0.00049 $0.00973
Opus 5 $0.00024 $0.00487
Sonnet 5 $0.00010 $0.00195
Haiku 4.5 $0.00005 $0.00097

Measured 8d ago against content hash 0e99cae6ff0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

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 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.

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-sitemap — 0 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.

skills/seo-sitemap/SKILL.md · 119 lines

How it starts

The opening of the file, as written. The whole thing — 119 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 ../seo-plan/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 · 119 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.

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 · 119 lines · 49 tokens per session scan A 0e99cae6ff0a

Subscribe to this mod's changes

seo-sitemap is a skill published in the GitHub repository BestLemoon/codex-seo (9 stars, last pushed 2mo ago), licensed MIT. It adds 49 tokens to every session and 973 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to seo-sitemap, differing in 0 lines, and is treated as a copy.

Related

Other skills, from other repositories

systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

obra/superpowers · 21 tokens

local-ai-agents

Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…

microsoft/ai-agents-for-beginners · 200 tokens

next-cache-components-adoption

Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…

vercel/next.js · 95 tokens

next-cache-components-optimizer

Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…

vercel/next.js · 170 tokens

next-partial-prefetching-adoption

Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. Use when the user wants to enable or adopt Partial Prefetching, flip the partialPrefetching flag, opt routes in with export const prefetch = 'partial', audit Link prefetch={true} behavior, preserve existing prefetched UI with…

vercel/next.js · 103 tokens

chronicle

Analyze Copilot session history for standup reports, usage tips, session search, and session reindexing. Use when the user asks for a standup, daily summary, usage tips, workflow recommendations, wants to search or find past sessions by keyword/file/PR, wants to reindex their session store, or asks about deleting…

microsoft/vscode · 72 tokens