Borrowing it
Nothing to install: this file belongs to andrew-yangy/gru-ai. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/andrew-yangy/gru-ai/main/.claude/skills/seo-audit/SKILL.mdgit clone --depth 1 https://github.com/andrew-yangy/gru-aiWrote 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/andrew-yangy/gru-ai/seo-audit)<a href="https://agentmods.dev/skills/andrew-yangy/gru-ai/seo-audit"><img src="https://agentmods.dev/badge/skills/andrew-yangy/gru-ai/seo-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/andrew-yangy/gru-ai/seo-audit"><img src="https://agentmods.dev/badge/skills/andrew-yangy/gru-ai/seo-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 | $0.00060 | $0.00733 |
| Opus 5 | $0.00030 | $0.00367 |
| Sonnet 5 | $0.00012 | $0.00147 |
| Haiku 4.5 | $0.00006 | $0.00073 |
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 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- seo-audit — 92% identical, 4 lines differ
How it starts
The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Full Website SEO Audit
Process
- Fetch homepage — use
scripts/fetch_page.pyto retrieve HTML - Detect business type — analyze homepage signals per seo orchestrator
- Crawl site — follow internal links up to 500 pages, respect robots.txt
- Delegate to subagents (if available, otherwise run inline sequentially):
seo-technical— robots.txt, sitemaps, canonicals, Core Web Vitals, security headersseo-content— E-E-A-T, readability, thin content, AI citation readinessseo-schema— detection, validation, generation recommendationsseo-sitemap— structure analysis, quality gates, missing pagesseo-performance— LCP, INP, CLS measurementsseo-visual— screenshots, mobile testing, above-fold analysis
- Score — aggregate into SEO Health Score (0-100)
- Report — generate prioritized action plan
Crawl Configuration
Max pages: 500
Respect robots.txt: Yes
Follow redirects: Yes (max 3 hops)
Timeout per page: 30 seconds
Concurrent requests: 5
Delay between requests: 1 second
Output Files
FULL-AUDIT-REPORT.md— Comprehensive findingsACTION-PLAN.md— Prioritized recommendations (Critical → High → Medium → Low)screenshots/— Desktop + mobile captures (if Playwright available)
Scoring Weights
| Category | Weight |
|---|---|
| Technical SEO | 25% |
| Content Quality | 25% |
| On-Page SEO | 20% |
| Schema / Structured Data | 10% |
| Performance (CWV) | 10% |
| Images | 5% |
| AI Search Readiness | 5% |
Report Structure
Executive Summary
- Overall SEO Health Score (0-100)
- Business type detected
- Top 5 critical issues
- Top 5 quick wins
Technical SEO
- Crawlability issues
- Indexability problems
- Security concerns
- Core Web Vitals status
Content Quality
- E-E-A-T assessment
- Thin content pages
- Duplicate content issues
- Readability scores
On-Page SEO
- Title tag issues
- Meta description problems
- Heading structure
- Internal linking gaps
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.
- 12d ago First seen · 108 lines · 60 tokens per session scan A 89719321e55f
seo-audit is a skill published in the GitHub repository andrew-yangy/gru-ai (153 stars, last pushed 6mo ago), licensed MIT. It adds 60 tokens to every session and 733 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.
Other skills, from other repositories
building
Implementation skill for writing production code with TDD. Covers the RED-GREEN-REFACTOR cycle, false-RED detection, vertical slicing, scope escalation, test process discipline, and code generation patterns. Loaded by component-builder and bug-investigator.
diff-driven-docs
Use when a BUILD phase completes, a commit is staged, or a PR is about to be created, and the diff has not yet been reflected in documentation. Also use when the user says "update docs", "sync docs", "document this", or asks whether documentation is up to date.
exploration
Two-mode exploration skill: (1) design dialogue — turn rough ideas into validated designs through collaborative interview before planning; (2) spike — throwaway code answering ONE design question, deleted or absorbed, never shipped. Router invokes mode via dispatch context.
memory-and-handoff
Two-mode skill: (1) session memory — load/persist durable workflow state under .cc10x/ (activeContext, patterns, progress) so context survives compaction; (2) handoff package — portable, secrets-redacted export for a coworker, different tool, or fresh non-cc10x session.
plan-review-gate
Use after saving a non-trivial plan or decision RFC when a fail-closed feasibility, completeness, and alignment review must block execution.
architecture
Greenfield architecture design: map functionality flows, draw components, design APIs, classify dependencies, plan observability. For multi-component, API, schema, auth, or integration-heavy work. For retrofitting existing code, use codebase-hygiene instead.