Claude SEO is an open-source Claude Code plugin that runs specialized agents and skills to audit websites across technical SEO, content quality, structured data, AI-search optimization, local and e-commerce SEO, and international SEO. SEO practitioners use it to produce prioritized recommendations based on primary-source guidance, with optional extensions for external data and crawling.
Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add AgriciDaniel/claude-seo/plugin install claude-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/agricidaniel/claude-seo/seo-seranking)<a href="https://agentmods.dev/skills/agricidaniel/claude-seo/seo-seranking"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-seo/seo-seranking/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/agricidaniel/claude-seo/seo-seranking"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-seo/seo-seranking.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Agent Snooping · line 17 Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
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 | $0.00040 | $0.00565 |
| Opus 5 | $0.00020 | $0.00282 |
| Sonnet 5 | $0.00008 | $0.00113 |
| Haiku 4.5 | $0.00004 | $0.00056 |
Grade B, and why
seo-seranking scanned grade B with 1 finding 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
- Before any call, verify `SERANKING_API_KEY` is present in `~/.claude/settings.json` under `env.`. If absent, tell the user to run the installer. Copies of this mod
1 near-identical copy found in the catalogue:
- seo-seranking — 97% identical, 9 lines differ
What it actually says
seo-seranking
Live AI visibility tracking via the SE Ranking REST API.
Prerequisites
- Run
extensions/seranking/install.sh(orinstall.ps1). - An SE Ranking API key (https://seranking.com/api.html).
- Before any call, verify
SERANKING_API_KEYis present in~/.claude/settings.jsonunderenv.. If absent, tell the user to run the installer.
Routing
| Command | Purpose |
|---|---|
/seo seranking ai-visibility <brand> |
Share-of-voice for brand across ChatGPT, Gemini, Perplexity, AI Overviews, AI Mode |
/seo seranking serp <keyword> |
Top 100 organic positions + SERP features |
/seo seranking backlinks <url> |
Backlink profile (alternative vendor source to Ahrefs / DataForSEO) |
/seo seranking competitors <url> |
Top 10 organic competitors and shared-keyword gaps |
AI Share-of-Voice scoring
SE Ranking samples each AI platform's responses for brand mentions across a configurable prompt set. The scorer is the same logic used by Profound / Peec AI but bundled into one MCP/API. Output fields:
chatgpt_sov: % of sampled prompts where the brand appears in the response.gemini_sov: same, against Google Gemini.perplexity_sov: same, against Perplexity.ai_overviews_sov: brand citation rate inside Google AI Overviews.ai_mode_sov: brand citation rate inside Google AI Mode (US English first).
Report each as a percentage with a confidence note based on sample size.
Cost guardrails
SE Ranking API uses unit accounting. Single AI visibility query is
~5 units (1 per platform). Use "${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run dataforseo_costs.py to log
spend across vendors.
Cross-skill delegation
- For traditional backlinks + content audit, fall back to
seo-backlinks/seo-content. - For platform-specific deep-dives (ChatGPT only, Perplexity only), prefer the dedicated
seo-geoskill which has Brand Mention Correlation guidance.
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 Changed c532015a03b9
- 12d ago First seen · 52 lines · 40 tokens per session scan B 418493543501
seo-seranking is a skill published in the GitHub repository AgriciDaniel/claude-seo (16,757 stars, last pushed today), licensed MIT. It adds 40 tokens to every session and 565 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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