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-bing)<a href="https://agentmods.dev/skills/agricidaniel/claude-seo/seo-bing"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-seo/seo-bing/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-bing"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-seo/seo-bing.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 6 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 | $0.00041 | $0.00599 |
| Opus 5 | $0.00020 | $0.00300 |
| Sonnet 5 | $0.00008 | $0.00120 |
| Haiku 4.5 | $0.00004 | $0.00060 |
Grade B, and why
seo-bing scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
compatibility: "Requires BING_WEBMASTER_API_KEY and (optionally) INDEXNOW_KEY in ~/.claude/settings.json env. Run extensions/bing-webmaster/install.sh to configure." What it actually says
seo-bing
The non-Google indexing surface. Google still rejects IndexNow (per Gary Illyes, multiple SOTR episodes 2024-2025), so this skill is specifically for Amazon/Bing/Naver/Seznam.cz/Yandex/Yep indexing and Microsoft Copilot AI citation (which pulls from the Bing index).
Prerequisites
- Run
extensions/bing-webmaster/install.shorinstall.ps1. - A Bing Webmaster Tools API key.
- Optional: an IndexNow host key (32+ chars) published at the URL
declared as
INDEXNOW_KEY_LOCATION.
Routing
| Command | Underlying script |
|---|---|
/seo bing links <url> |
"${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run bing_webmaster.py links <url> |
/seo bing compare <urlA> <urlB> |
"${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run bing_webmaster.py compare <urlA> <urlB>; both properties must be registered to the API account |
/seo bing submit <url> (single URL) |
"${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run indexnow_submit.py --host ... --urls <url> |
/seo bing submit-batch <file> |
"${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run indexnow_submit.py --host ... --urls-file <file> |
/seo bing verify-indexnow |
"${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run indexnow_submit.py --host ... --verify-only |
When this skill applies
- The user is publishing new pages and wants Microsoft Copilot citation eligibility (Bing index ingestion).
- The user wants to nudge Amazon/Bing/Naver/Seznam.cz/Yandex/Yep indexing for fresh URLs.
- The user manages both properties and wants to compare their Bing link data. For an arbitrary competitor, route to DataForSEO, Moz, or Common Crawl.
Cross-skill delegation
- For Google indexing (very different model, sitemap-driven, no
IndexNow), use
seo-google indexing. - For multi-source backlink confidence weighting, fall back to
seo-backlinkswhich already integrates Bing + Moz + CC.
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 a49d4ac84f2b
- 12d ago First seen · 48 lines · 41 tokens per session scan B acc66bbab32a
seo-bing is a skill published in the GitHub repository AgriciDaniel/claude-seo (16,757 stars, last pushed today), licensed MIT. It adds 41 tokens to every session and 599 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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blog-discourse
Research what people are actually saying about a topic in the last 30 days across Reddit, X / Twitter, YouTube, Hacker News, dev.to, Medium, and other public discourse platforms. API-free; uses WebSearch with platform-targeted site operators plus recency filters. Produces DISCOURSE.md (a structured brief) and JSON…
blog-seo-check
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