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 dalroot/agentic-seo --skill crawlabilitygit clone --depth 1 https://github.com/dalroot/agentic-seoWrote 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/dalroot/agentic-seo/crawlability)<a href="https://agentmods.dev/skills/dalroot/agentic-seo/crawlability"><img src="https://agentmods.dev/badge/skills/dalroot/agentic-seo/crawlability/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/dalroot/agentic-seo/crawlability"><img src="https://agentmods.dev/badge/skills/dalroot/agentic-seo/crawlability.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 | $0.00102 | $0.01851 |
| Opus 5.5 | $0.00041 | $0.00740 |
| Sonnet 5.5 | $0.00020 | $0.00370 |
| Haiku 4.5 | $0.00010 | $0.00185 |
Grade A, and why
site-crawlability 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 today.
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 — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SEO Technical: Crawlability
Guides crawlability improvements: robots, X-Robots-Tag, site structure, and internal linking.
When invoking: On first use, if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.
Scope (Technical SEO)
- Redirect chains & loops: Fix multi-hop redirects; point directly to final URL
- Broken links (4xx): Fix broken internal/external links; 301 or remove
- Site architecture: Logical hierarchy; pages within 3–4 clicks from homepage
- Orphan pages: Add internal links to pages with no incoming links
- Pagination: Prefer pagination over infinite scroll for crawlability
- Crawl budget: Reduce waste on duplicates, redirects, low-value URLs (see below)
- AI crawler optimization: SSR for critical content; URL management; reduce 404/redirect waste (see below)
Initial Assessment
Check for project context first: If .claude/project-context.md or .cursor/project-context.md exists, read it for site structure.
Identify:
- Site structure: Flat vs. deep hierarchy
- Framework: Next.js, static, SPA, etc.
- Key paths: Sitemap, robots.txt, API, static assets
Best Practices
Redirect Chains & Loops
- Fix multi-hop redirects; point directly to final URL
- Loops: URLs redirecting back to themselves; break the cycle
Broken Links (4xx)
- Fix broken internal/external links; 301 or remove
- Audit regularly; update or remove broken links
Site Architecture
| Principle | Guideline |
|---|---|
| Depth | Important pages within 3–4 clicks from homepage |
| Orphan pages | Add internal links to pages with no incoming links; see internal-links for link strategy |
| Hierarchy | Logical structure; hub pages link to content |
Pagination vs Infinite Scroll
Problem: With infinite scroll, crawlers cannot emulate user behavior (scroll, click "Load more"); content loaded after initial page load is not discoverable. Same applies to masonry + infinite scroll, lazy-loaded lists, and similar patterns.
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.
- today First seen · 142 lines · 102 tokens per session scan A 50f4a967c11c
site-crawlability is a skill published in the GitHub repository dalroot/agentic-seo (25 stars, last pushed 6d ago), licensed MIT. It adds 102 tokens to every session and 1,851 once invoked, about $0.0004 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 2026-10-26.
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