SEO/GEO Agent Skills

Overview

A new category of AI agent skills has emerged around SEO and GEO (Generative Engine Optimization) — tools that give coding agents the ability to audit and optimize websites for both traditional search engines and AI-powered search. This comparison covers 8 open-source tools, from focused GEO audit skills to comprehensive marketing libraries.

The market context: AI-referred traffic grew 527% year-over-year, AI traffic converts at 4.4x the rate of organic, and Gartner projects a 50% drop in traditional search traffic by 2028. Only 23% of marketers are investing in GEO — making this an early-mover opportunity.

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Market Map

Tool	Stars	Focus	Sub-skills	Agent Support	License
Marketing Skills	14,937	Full marketing stack	CRO, copy, SEO, analytics	Claude Code	MIT
geo-seo-claude	3,320	GEO-first, SEO support	11 + 5 subagents	Claude Code	MIT
SEO Machine	2,816	SEO content creation	Long-form blog content	Claude Code	MIT
claude-seo	2,656	Comprehensive SEO + GEO	13 + 7 subagents	Claude Code	MIT
seo-geo-claude-skills	452	SEO + GEO skill library	20 skills, 9 commands	35+ agents	Apache-2.0
Agentic-SEO-Skill	188	LLM-first SEO analysis	16 + 10 agents	Antigravity, Claude, Codex	MIT
SEO/GEO Optimizer	20	SEO/GEO/AEO/Voice	Python scripts	Claude Code	MIT
seo-geo-consultant	1	SaaS SEO + GEO	4 workflow modes	Claude Code	MIT

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Category Segments

GEO-First Tools

geo-seo-claude (3,320 stars) is the only tool that explicitly prioritizes GEO over traditional SEO. Its citability scoring engine analyzes content blocks against research showing optimal AI-cited passages are 134-167 words. Five parallel subagents cover AI visibility, platform analysis, technical SEO, content quality, and schema markup. Outputs include a composite GEO Score (0-100) and client-ready PDF reports. Monetizes through a paid Skool community teaching GEO agency sales.

Comprehensive SEO Suites (with GEO)

claude-seo (2,656 stars) takes the opposite approach — comprehensive traditional SEO first with GEO as one of 13 sub-skills. Differentiates with an extensions system and DataForSEO MCP integration for real search data. Seven subagents handle parallel analysis. The most mature codebase (created February 7, actively maintained).

Agentic-SEO-Skill (188 stars) is the most architecturally ambitious — 16 sub-skills, 10 specialist agents, and 33 Python scripts as evidence collectors. Unique "reasoning-first" approach with confidence labels (Confirmed, Likely, Hypothesis) on each finding. Supports Antigravity IDE and Codex in addition to Claude Code. GitHub-specific SEO optimization is a standout feature.

SEO/GEO Optimizer (20 stars) from 199 Biotechnologies covers the broadest optimization surface — SEO, GEO, AEO (Answer Engine Optimization), voice assistants, and social media. Python-only with no external dependencies. The oldest project in the category (November 2025) but appears less actively maintained.

Content-First Tools

SEO Machine (2,816 stars) focuses specifically on creating long-form, SEO-optimized blog content rather than auditing existing sites. A specialized Claude Code workspace for research, writing, analysis, and optimization. Less about GEO, more about traditional content SEO at scale.

Broad Marketing Libraries

Marketing Skills (14,937 stars) is the star count leader by a wide margin, covering CRO, copywriting, SEO, analytics, and growth engineering. SEO/GEO is one capability among many rather than the core focus. The high star count likely reflects the broader marketing audience rather than deep SEO/GEO specialization.

Multi-Agent Skill Libraries

seo-geo-claude-skills (452 stars) is unique in supporting 35+ agents via the skills.sh registry — not just Claude Code but Cursor, Codex, Gemini CLI, and more. Twenty skills and 9 commands cover keyword research, content writing, technical audits, and rank tracking. Includes custom frameworks: CORE-EEAT Content Benchmark and CITE Domain Rating.

Consultant-Style Plugins

seo-geo-consultant (1 star) takes a different approach — rather than discrete commands, it acts as a "senior SEO & GEO consultant" persona within Claude Code. Four workflow modes (audit, content optimization, technical implementation, GEO strategy) with Next.js-specific implementation guidance. Tiny adoption but an interesting UX pattern.

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Feature Comparison

Feature	geo-seo-claude	claude-seo	seo-geo-skills	Agentic-SEO	SEO Machine
GEO Score	✅ Composite 0-100	✅ Part of audit	❌	✅	❌
Citability Scoring	✅ Deep	❌	❌	❌	❌
AI Crawler Check	✅ 14+ crawlers	✅	❌	✅	❌
llms.txt	✅ Generate/analyze	❌	❌	❌	❌
Brand Mentions	✅ 7+ platforms	❌	❌	❌	❌
Schema Generation	✅ 6 templates	✅	❌	✅	❌
PDF Reports	✅ ReportLab	❌	❌	❌	❌
MCP Integration	❌	✅ DataForSEO	✅ Optional	❌	❌
Multi-agent	❌ Claude only	❌ Claude only	✅ 35+ agents	✅ 3 IDEs	❌ Claude only
Content Creation	❌ Audit only	✅ Programmatic SEO	✅	❌	✅ Primary
Parallel Subagents	✅ 5	✅ 7	❌	✅ 10	❌

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Trends

GEO is eating SEO tooling. Every new tool in this category includes GEO features — the question is whether GEO leads (geo-seo-claude) or follows (everyone else). The research supports the GEO-first bet: only 11% of domains are cited by both ChatGPT and Google AI Overviews for the same query, and brand mentions correlate 3x more strongly with AI visibility than backlinks.

Skills as agency tools. Multiple projects position themselves not just as developer tools but as agency deliverable generators — PDF reports, client-ready audits, pricing templates. geo-seo-claude and claude-seo both target the "$2K-$12K/month GEO agency" market.

Claude Code dominance. Six of eight tools are Claude Code only. seo-geo-claude-skills is the exception with 35+ agent support via skills.sh, suggesting the broader agent ecosystem hasn't caught up to Claude Code's skill infrastructure for marketing use cases.

Consolidation incoming. Eight tools in a ~4-month-old category is too many. Expect the market to consolidate around 2-3 winners — likely claude-seo (broadest SEO coverage), geo-seo-claude (deepest GEO), and Marketing Skills (broadest marketing coverage).

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Bottom Line

If you want GEO-first optimization, geo-seo-claude is the clear pick — deepest citability scoring, AI crawler analysis, and brand mention scanning. If you want comprehensive SEO with GEO included, claude-seo has the broadest feature set and MCP integration. If you need multi-agent support beyond Claude Code, seo-geo-claude-skills is the only real option.