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
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add AgriciDaniel/claude-seo --skill seo-plangit clone --depth 1 https://github.com/AgriciDaniel/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-plan)<a href="https://agentmods.dev/skills/agricidaniel/claude-seo/seo-plan"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-seo/seo-plan/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-plan"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-seo/seo-plan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- NVIDIA SkillSpector pass
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 | $0.00064 | $0.01067 |
| Opus 5.5 | $0.00026 | $0.00427 |
| Sonnet 5.5 | $0.00013 | $0.00213 |
| Haiku 4.5 | $0.00006 | $0.00107 |
Grade A, and why
seo-plan 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 4d 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
8 near-identical copies found in the catalogue:
- seo-plan — 97% identical, 12 lines differ
- seo-plan — 97% identical, 12 lines differ
- seo-plan — 97% identical, 12 lines differ
- seo-plan — 97% identical, 12 lines differ
- seo-plan — 97% identical, 12 lines differ
- seo-plan — 94% identical, 19 lines differ
- seo-plan — 86% identical, 28 lines differ
- seo-plan — 84% identical, 56 lines differ
How it starts
The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Strategic SEO Planning
Process
1. Discovery
- Business type, target audience, competitors, goals
- Current site assessment (if exists)
- Budget and timeline constraints
- Key performance indicators (KPIs)
2. Competitive Analysis
- Identify top 5 competitors
- Analyze their content strategy, schema usage, technical setup
- Identify keyword gaps and content opportunities
- Assess their E-E-A-T signals
- Estimate their domain authority
3. Architecture Design
- Load industry template from
assets/directory - Design URL hierarchy and content pillars
- Plan internal linking strategy
- Sitemap structure with quality gates applied
- Information architecture for user journeys
4. Content Strategy
- Content gaps vs competitors
- Page types and estimated counts
- Blog/resource topics and publishing cadence
- E-E-A-T building plan (author bios, credentials, experience signals)
- Content calendar with priorities
5. Technical Foundation
- Hosting and performance requirements
- Schema markup plan per page type
- Core Web Vitals baseline targets
- AI search readiness requirements
- Mobile-first considerations
6. Implementation Roadmap (4 phases)
Phase 1: Foundation (weeks 1-4)
- Technical setup and infrastructure
- Core pages (home, about, contact, main services)
- Essential schema implementation
- Analytics and tracking setup
Phase 2: Expansion (weeks 5-12)
- Content creation for primary pages
- Blog launch with initial posts
- Internal linking structure
- Local SEO setup (if applicable)
Phase 3: Scale (weeks 13-24)
- Advanced content development
- Link building and outreach
- GEO optimization
- Performance optimization
Phase 4: Authority (months 7-12)
- Thought leadership content
- PR and media mentions
- Advanced schema implementation
- Continuous optimization
Industry Templates
Load from assets/ directory:
saas.md: SaaS/software companieslocal-service.md: Local service businessesecommerce.md: E-commerce storespublisher.md: Content publishers/mediaagency.md: Agencies and consultanciesgeneric.md: General business template
What ships with it
7 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.
- 4d ago Changed · +8 lines 456cdb5f9678
- 22d ago Changed fd1de9df9518
- 27d ago Changed 7caee4de5b10
- 1mo ago Changed ae7a9b11a6c2
- 1mo ago Changed aef988384e68
- 1mo ago First seen · 127 lines · 64 tokens per session scan A f799fc02d0e3
seo-plan is a skill published in the GitHub repository AgriciDaniel/claude-seo (22,165 stars, last pushed 4d ago), licensed MIT. It adds 64 tokens to every session and 1,067 once invoked, about $0.0003 per session on Opus 5.5. 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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