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 jaredlangleycc/nightshift-os --skill seo-auditgit clone --depth 1 https://github.com/jaredlangleycc/nightshift-osWrote 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/jaredlangleycc/nightshift-os/seo-audit)<a href="https://agentmods.dev/skills/jaredlangleycc/nightshift-os/seo-audit"><img src="https://agentmods.dev/badge/skills/jaredlangleycc/nightshift-os/seo-audit.svg" alt="Measured on agentmods" 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 | $0.00110 | $0.03146 |
| Opus 5 | $0.00055 | $0.01573 |
| Sonnet 5 | $0.00022 | $0.00629 |
| Haiku 4.5 | $0.00011 | $0.00315 |
Grade A, and why
seo-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 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.
How it starts
The opening of the file, as written. The whole thing — 318 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SEO Audit
Technical + on-page SEO audit for solopreneur sites. The output is a prioritized list of fixes with impact estimates, ordered so the user can ship the top 5 in one Friday afternoon.
Most solopreneur SEO audits ship 47-item checklists that paralyze the user. This skill cuts to the 5 to 10 fixes that matter at the user's stage.
When this skill triggers
- "Audit my SEO"
- "SEO health check"
- "Why am I not ranking"
- "Check my SEO"
- "Technical SEO review"
- "On-page SEO audit"
- "What's broken on my site"
- "Run an SEO audit"
NOT for: AI-search-engine citation (use ai-seo), creating pages at scale, content strategy for SEO (use content-strategy).
The diagnostic before the audit
Coach-mode. One question at a time.
- "What's the URL I'm auditing?"
- "What's the goal of the audit, diagnose a specific drop, find new wins, or general health check?"
- "What tools do you currently use? (Search Console, Google Analytics, Bing Webmaster, anything else?)"
- "What's the top ranking page right now, and which page do you want to rank that doesn't?"
- "When was the last time you touched anything SEO-related on this site?"
If the user can't name a goal (question 2), the audit becomes a checklist with no priorities. Push for specificity.
The audit framework
Run the audit in 6 areas. Each area is one section of the output. Each item is tagged: P0 (critical), P1 (high), P2 (medium), P3 (low).
Area 1: Indexability + crawl
The blockers. If these fail, nothing else matters.
- robots.txt is not blocking the site (no
Disallow: /for important crawlers) - sitemap.xml exists and is submitted to Google Search Console + Bing Webmaster Tools
- sitemap.xml lists current important URLs (no 404s, no deprecated URLs)
- noindex meta is not on any important page
- X-Robots-Tag is not blocking crawlers at the server level
- No accidental noindex inherited from Cloudflare bot protection (see Langley memory
reference_cloudflare-robots-txt-gotcha.md) - canonical tags point to the right URL (especially for pages with parameters)
- hreflang tags if multi-language
- Mobile-friendly (Mobile Usability report in Search Console)
What ships with it
5 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.
- 8d ago First seen · 318 lines · 110 tokens per session scan A 9e2b1dcf6c89
seo-audit is a skill published in the GitHub repository jaredlangleycc/nightshift-os (3 stars, last pushed 1mo ago), licensed MIT. It adds 110 tokens to every session and 3,146 once invoked, about $0.0006 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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