Claude SEO: SEO Analysis Skill for Claude Code
Claude SEO is an open-source SEO analysis plugin for Claude Code. It runs 26 sub-skills and 18 specialist agents in parallel across technical SEO, content quality (E-E-A-T), Schema.org markup, AI search optimization (GEO), local SEO, e-commerce, and international SEO. Every audit produces a prioritized action plan with falsifiable recommendations grounded in primary-source guidance from Google.
Two versions of this skill.
Why Claude SEO
- AI-search first. Aligned with Google's AI Optimization Guide. Question-based citability scoring, primary-source evidence on llms.txt, IPTC
TrainedAlgorithmicMedia for AI-generated product images, agent-friendly page checks per web.dev.
- Parallel execution. Full site audits spawn up to 15 specialist agents simultaneously. Site-level audits complete in minutes rather than hours.
- Falsifiable, not promotional. Every recommendation carries the first-principle observation it rests on, its dependency relationships, an explicit "how would we know this failed?" check, and a leading indicator. See Methodology.
Using Codex instead of Claude Code? Use Codex SEO, the Codex-first port with TOML agents, plugin packaging, deterministic runners, and the same SEO workflow surface.
Who this is for
- SEO agencies running 5+ client sites. Replace quarterly deep audits with weekly automated runs. Same team capacity, 4× audit cadence, every recommendation comes with a falsifiability check the client can verify.
- In-house SEO leads at SaaS / publisher / e-commerce companies. Second-pair-of-eyes before executive reviews. Catches what GSC and Lighthouse hide: schema deprecation, AI-citability gaps, expired-domain heritage risk, parasite-SEO exposure, machine-translation drift.
- Freelance SEO consultants. Anchor day-one client scope with a 15-minute audit and a real 0-100 score. Win the engagement with concrete proof of value before you spend an hour writing the proposal.
Run a full audit and watch parallel agents fan out across the site:
Watch the full demo on YouTube
Table of Contents
Installation
