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.
npx skills add JakeLabate/Claude-SEO-Skills --skill sitemap-auditgit clone --depth 1 https://github.com/JakeLabate/Claude-SEO-SkillsWrote 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.
[](https://agentmods.dev/skills/jakelabate/claude-seo-skills/sitemap-audit)<a href="https://agentmods.dev/skills/jakelabate/claude-seo-skills/sitemap-audit"><img src="https://agentmods.dev/badge/skills/jakelabate/claude-seo-skills/sitemap-audit/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.
<a href="https://agentmods.dev/skills/jakelabate/claude-seo-skills/sitemap-audit"><img src="https://agentmods.dev/badge/skills/jakelabate/claude-seo-skills/sitemap-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00140 | $0.01702 |
| Opus 5 | $0.00070 | $0.00851 |
| Sonnet 5 | $0.00028 | $0.00340 |
| Haiku 4.5 | $0.00014 | $0.00170 |
Grade A, and why
sitemap-audit 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.
How it starts
The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sitemap Audit
Audit a website's XML sitemaps and produce an actionable SEO report.
When to use this skill
Use this skill when the user asks to:
- Audit, validate, or check an XML sitemap or sitemap index
- Find sitemap URLs that 404, redirect, are noindexed, or are blocked by robots.txt
- Find URLs in the sitemap that canonicalize elsewhere or sit on the wrong host/protocol
- Check that sitemaps are declared in robots.txt and stay under the 50,000-URL / 50MB limits
- Clean up lastmod, priority, and changefreq metadata
- Improve the quality and trustworthiness of the URL set submitted to search engines
Inputs to collect
Before starting, confirm with the user:
- Site URL or sitemap URL — a live site root (e.g.,
https://example.com, which auto-discovers sitemaps via robots.txt and common paths) or a specific sitemap URL (--sitemap). - Scope — how many listed URLs to probe (default 2000). Large sitemaps can be sampled with
--max-urls. - Probing — whether to fetch each listed URL to check status/canonical/noindex (default on). Use
--no-probefor a fast structural-only pass (parse errors, size limits, lastmod hygiene).
Note on the indexable contract: every URL in an XML sitemap should be a final, canonical, indexable
200page. A URL that redirects, 404s, is noindexed, is blocked by robots.txt, or canonicalizes elsewhere does not belong in the sitemap. Most checks here enforce that contract.
Workflow
Step 1: Discover, parse, and probe the sitemaps
Use scripts/collect_sitemap.py:
python3 scripts/collect_sitemap.py https://example.com --max-urls 2000 --output sitemap_inventory.json
Point directly at a sitemap with --sitemap:
python3 scripts/collect_sitemap.py https://example.com/sitemap_index.xml --sitemap --output sitemap_inventory.json
The script reads robots.txt for Sitemap: directives (falling back to /sitemap.xml and /sitemap_index.xml), follows sitemap index files, handles gzipped sitemaps, and records each sitemap's type, URL count, byte size, and any parse/fetch error. For every listed URL it captures the sitemap's lastmod/changefreq/priority, then probes the URL for status, redirect target, rel=canonical, meta robots, the X-Robots-Tag header, and whether robots.txt disallows it.
What ships with it
6 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.
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.
- 11d ago First seen · 128 lines · 140 tokens per session scan A ece44a744462
sitemap-audit is a skill published in the GitHub repository JakeLabate/Claude-SEO-Skills (2 stars, last pushed 2mo ago), licensed MIT. It adds 140 tokens to every session and 1,702 once invoked, about $0.0007 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 2026-08-31.
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