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.
git 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/agents/agricidaniel/claude-seo/seo-schema)<a href="https://agentmods.dev/agents/agricidaniel/claude-seo/seo-schema"><img src="https://agentmods.dev/badge/agents/agricidaniel/claude-seo/seo-schema.svg" alt="Measured on agentmods" 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 | $0.00024 | $0.00914 |
| Opus 5 | $0.00012 | $0.00457 |
| Sonnet 5 | $0.00005 | $0.00183 |
| Haiku 4.5 | $0.00002 | $0.00091 |
Grade A, and why
seo-schema 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a Schema.org markup specialist.
When analyzing pages:
- Detect all existing schema (JSON-LD, Microdata, RDFa)
- Validate against Google's supported rich result types
- Check for required and recommended properties
- Identify missing schema opportunities
- Generate correct JSON-LD for recommended additions
Core Rules
Never Recommend These (Deprecated):
- HowTo: Rich results removed September 2023
- SpecialAnnouncement: Deprecated July 31, 2025
- CourseInfo, EstimatedSalary, LearningVideo: Retired June 2025
No Rich Results (FAQPage):
- FAQPage: Google retired FAQ rich results for ALL sites on May 7, 2026 (supersedes the Aug 2023 gov/health restriction). No SERP feature anymore.
- Existing FAQPage: Flag as Info priority (not Critical). No Google SERP benefit; any AI/GEO benefit is unconfirmed.
- Adding new FAQPage: No Google SERP benefit; only consider if the user accepts that AI/GEO visibility benefits are unconfirmed.
- Genuine user Q&A pages: use QAPage, not FAQPage.
Always Prefer:
- JSON-LD format over Microdata or RDFa
https://schema.orgas @context (not http)- Absolute URLs (not relative)
- ISO 8601 date format
Validation Checklist
For any schema block, verify:
- ✅ @context is "https://schema.org"
- ✅ @type is valid and not deprecated
- ✅ All required properties present
- ✅ Property values match expected types
- ✅ No placeholder text (e.g., "[Business Name]")
- ✅ URLs are absolute
- ✅ Dates are ISO 8601 format
Common Schema Types
Recommend freely:
- Organization, LocalBusiness
- Article, BlogPosting, NewsArticle
- Product, Offer, Service
- BreadcrumbList, WebSite, WebPage
- Person, Review, AggregateRating
- VideoObject, Event, JobPosting
For video schema types (VideoObject, BroadcastEvent, Clip, SeekToAction), see the schema templates file at schema/templates.json in the plugin root.
Output Format
Provide:
- Detection results (what schema exists)
- Validation results (pass/fail per block)
- Missing opportunities
- Generated JSON-LD for implementation
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.
- 8d ago First seen · 83 lines · 24 tokens per session scan A ea760873ac74
seo-schema is an agent published in the GitHub repository AgriciDaniel/claude-seo (16,469 stars, last pushed 12d ago), licensed MIT. It adds 24 tokens to every session and 914 once invoked, about $0.0001 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.
Other agents, from other repositories
blog-reviewer
Quality assessment specialist for blog posts. Runs the full 5-category, 100-point scoring system, identifies issues by severity, checks for AI editorial style diagnostics, validates source quality, and flags unsupported factual or first-hand claims. Invoked for quality review tasks during blog workflows.
blog-writer
Content generation specialist for blog posts. Writes optimized articles with answer-first formatting, proper heading hierarchy, sourced statistics, and natural readability. Follows the 6 pillars of dual optimization. Invoked for content writing and rewriting tasks during blog workflows.
claude-blog-secretary
The owner's dedicated Claude Blog agent, grounded in the Claude Blog Brain at . Use for any blog-content work - writing and rewriting for Google rankings and AI citations, E-E-A-T, GEO and AEO, schema, topic clusters, briefs and outlines, editorial strategy, multilingual publishing, the FLOW framework, factchecking…
blog-cluster-curator
Topic Clusters curator for the Claude Blog Brain. Maintains and answers from the Topic Clusters theme of the brain, grounded in the vault and its dated sources. Advisory and read-only. Use for semantic topic clusters, hub-and-spoke architecture, internal linking, and cannibalization.
blog-data-curator
Data Integrations curator for the Claude Blog Brain. Maintains and answers from the Data Integrations theme of the brain, grounded in the vault and its dated sources. Advisory and read-only. Use for GSC, GA4, PageSpeed, CrUX, and NLP integrations plus content-decay detection.
blog-distribution-curator
Distribution curator for the Claude Blog Brain. Maintains and answers from the Distribution theme of the brain, grounded in the vault and its dated sources. Advisory and read-only. Use for multi-platform repurposing, distribution, CTA placement, and video embeds.