Borrowing it
Nothing to install: this file belongs to lionkiii/claude-seo-skills. 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/lionkiii/claude-seo-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/lionkiii/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/instructions/lionkiii/claude-seo-skills/claude-md)<a href="https://agentmods.dev/instructions/lionkiii/claude-seo-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/lionkiii/claude-seo-skills/claude-md/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/instructions/lionkiii/claude-seo-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/lionkiii/claude-seo-skills/claude-md.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 | $0.00229 | $0.00229 |
| Opus 5 | $0.00114 | $0.00114 |
| Sonnet 5 | $0.00046 | $0.00046 |
| Haiku 4.5 | $0.00023 | $0.00023 |
Grade A, and why
claude-seo-skills CLAUDE.md 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.
What it actually says
Claude SEO Skills
44-command SEO skill system that runs inside Claude Code via /seo <command>.
Structure
skills/— Skill definitions (SKILL.md + supporting files per command)agents/— Agent definitions for parallel audit delegationscripts/— Install, smoke-test, and verification scriptsskills/seo/— Shared references, hooks, and Python scripts
Install
bash install.sh
Copies skills/agents to ~/.claude/, creates Python venv, verifies MCP registration.
MCP Dependencies
- Ahrefs MCP — Connected via Claude.ai account (no local setup)
- GSC MCP (optional) — Bring-your-own Google Search Console MCP server, registered at user scope in
~/.claude/mcp.json
Dev Commands
bash install.sh --dry-run— Preview install without changesbash scripts/smoke-test.sh— Validate all skills and agentsbash scripts/verify-mcp-scope.sh— Check MCP registration status
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 · 30 lines · 229 tokens per session scan A 57d04029f897
claude-seo-skills CLAUDE.md is an instructions file published in the GitHub repository lionkiii/claude-seo-skills (20 stars, last pushed 3mo ago), licensed MIT. It adds 229 tokens to every session, about $0.0011 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.
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