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-ecommerce)<a href="https://agentmods.dev/skills/agricidaniel/claude-seo/seo-ecommerce"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-seo/seo-ecommerce/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-ecommerce"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-seo/seo-ecommerce.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
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 →
- medium Output Handling · line 55 Output size or generation rate is not bounded. Unbounded output enables denial-of-service through resource exhaustion, log flooding, or context-window stuffing.Fix: Set explicit limits on output length, generation count, and rate. Use max_tokens and truncation to prevent unbounded output.
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 | $0.00089 | $0.03453 |
| Opus 5 | $0.00044 | $0.01726 |
| Sonnet 5 | $0.00018 | $0.00691 |
| Haiku 4.5 | $0.00009 | $0.00345 |
Grade A, and why
seo-ecommerce scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 387 lines — stays where its author put it; the contents beside it link to each section on GitHub.
E-commerce SEO Analysis
Comprehensive product page optimization, marketplace intelligence, and competitive pricing analysis. Works standalone (on-page + schema) and with DataForSEO Merchant API for live Google Shopping and Amazon data.
Commands
| Command | Purpose | DataForSEO? |
|---|---|---|
/seo ecommerce <url> |
Full e-commerce SEO analysis of a product page or store | Optional |
/seo ecommerce products <keyword> |
Google Shopping competitive analysis | Required |
/seo ecommerce gaps <domain> |
Keyword gap: organic vs Shopping visibility | Required |
/seo ecommerce schema <url> |
Product schema validation and enhancement | No |
1. Product Page Analysis (No DataForSEO Needed)
Fetch and parse any product page for on-page SEO quality.
Workflow
1. "${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run render_page.py <url> --mode auto → raw/rendered HTML
2. "${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run parse_html.py --url <url> → SEO elements
3. Analyze product-specific signals (below)
Product SEO Checklist
Title Tag
- Contains primary product keyword
- Includes brand name
- Under 60 characters (no truncation in SERPs)
- Format:
[Product Name] - [Key Feature] | [Brand]
Meta Description
- Contains product keyword + benefit
- Includes price or "from $XX" (triggers rich snippet interest)
- Call-to-action present (Shop now, Buy, Free shipping)
- Under 155 characters
Heading Structure
- Single H1 matching primary product name
- H2s for: Features, Specifications, Reviews, Related Products
- No duplicate H1 tags across product variants
Product Images
- Alt text includes product name + distinguishing feature
- File names are descriptive (not
IMG_001.jpg) - WebP format served (with JPEG fallback)
- At least 3 images per product (hero, detail, lifestyle)
- Image dimensions >= 800px for Google Shopping eligibility
- Lazy loading on below-fold images only
What ships with it
2 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.
- today Changed · +1 lines de5a80d8def9
- 12d ago First seen · 386 lines · 89 tokens per session scan A d627c0e3988b
seo-ecommerce is a skill published in the GitHub repository AgriciDaniel/claude-seo (16,757 stars, last pushed today), licensed MIT. It adds 89 tokens to every session and 3,453 once invoked, about $0.0004 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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