Claude SEO Skill: Install, Commands and Alternatives

The Claude SEO skill is a free plugin for Claude Code that audits a website and returns a prioritised action plan. You install it with /plugin marketplace add AgriciDaniel/claude-seo, then run /seo audit on a URL. It is MIT licensed, and its README says an audit takes 10 to 15 minutes. We read the README on 12 November 2026 and have not run it.

What Claude SEO is

Claude SEO comes from Agrici Daniel and is described in its README as a free, open-source SEO audit plugin for Claude Code. It is built from 26 sub-skills and 19 specialist agents, and up to 17 of those agents can work on your site at the same time. Every recommendation is meant to say why it matters and how you will know it worked.

That structure is different from the single-file skills in our skills guide. Here one command starts a team. A technical agent, a content agent, a schema agent, a performance agent and others each take a slice of the site, and the result comes back as one report saved as Markdown. A separate command turns reports into a PDF.

Our entry is Claude SEO. The wider shortlist, including marketing and writing skills, is in best Claude skills.

What it covers

The README lists these areas for a full audit:

• technical SEO, across nine categories
• Core Web Vitals and page speed
• content quality and E-E-A-T
• Schema.org markup: detect, validate and generate
• AI search visibility, meaning how your pages show up in AI Overviews and other generated answers
• local SEO, including Google Business Profile, citations, reviews and the map pack
• e-commerce pages and marketplace signals
• sitemaps, images, hreflang and programmatic SEO

The README says who it is for: freelancers who want to run an audit on a first call and show real fixes before writing a proposal, in-house teams who want a rerunnable check, and agencies. We would add one more group, developers who own a site and have no SEO budget.

Install

The README gives the plugin route first.

/plugin marketplace add AgriciDaniel/claude-seo
/plugin install claude-seo@agricidaniel-claude-seo
/seo setup

/seo setup prepares what the skill needs: its own isolated Python environment and a headless Chromium browser, without touching the rest of your system. Run /seo doctor at any time to check the runtime without changing anything.

There is also a manual route for macOS and Linux that clones the repository and runs its install.sh, and a one-liner that downloads the script and tells you to review it before you run it. For Windows the README uses git clone and explains why: Claude Code's own guardrails flag a piped download-and-run as a supply chain risk, while a clone lets you inspect install.ps1 first. We would follow that advice for any skill, and read the script before you run it.

The commands that matter

The skill is driven by one command, /seo, with subcommands. These are the ones we would reach for first, all taken from the README's command list.

A few more are worth knowing. /seo local and /seo maps cover local search. /seo backlinks reads link data from sources the README names as Moz, Bing and Common Crawl. /seo google connects Google's own data, with entries for Search Console, PageSpeed, CrUX, indexing and GA4. /seo agentic checks whether AI agents can use your site, including llms.txt and Markdown access.

A first run, step by step

This is the order we would follow, based on how the README describes the flow.

1. Install and run setup. Do this once, then run /seo doctor to confirm it is ready.
2. Audit one site you own. Start with /seo audit https://your-site.example. Expect it to take a while, because many agents are fetching pages.
3. Read the plan from the top. The README says the plan is sorted by what matters most. Fix the first few items before you read the rest.
4. Drill into one area. If the plan flags schema or content, run /seo schema or /seo content on a key page for detail.
5. Save a baseline. /seo drift baseline <url> stores a snapshot, so a later compare shows what changed after your fixes.
6. Rerun after changes. The point of a tool like this is the repeat, not the first report.

How it compares with a classic SEO tool

The README sets Claude SEO against a consultant and against subscription tools, and lists its own cost as free with your Claude Code plan. That comparison is about price. It is worth being clear about what you get and what you do not.

The two do different jobs. The skill is good at reading a page the way an editor would and turning findings into changes. The data tools are good at telling you which topics are worth chasing. Many people will want both, and the skill alone will not tell you what to write next.

How to read the report

The README says the plan comes back sorted by importance, and that reports are saved as Markdown. A few habits make it easier to act on.

• Work top down. Do the first handful of items, then rerun the single-page command on the pages you changed, rather than rerunning the whole audit.
• Separate site-wide from page-level. A missing sitemap or a broken robots rule affects everything. A thin page affects one URL. Fix the first kind first.
• Ask for the evidence. If a finding looks odd, ask Claude which URL and which line of markup it came from, then check it yourself.
• Keep the reports. Because they are Markdown files, you can commit them next to the site and see the history in your version control.

Where it stops

Read these before you build a workflow on it.

• It is many model calls. Seventeen agents at once is a lot of work for your plan. On a large site, audit a section first, or one page with /seo page, and watch your usage.
• It is not a data provider. It reasons over pages it can fetch. It has no keyword volume database and no private backlink index, and the backlink command draws on the public sources the README lists. If you need search volumes, you need a keyword tool as well.
• Some commands lean on outside services. The README lists extension commands for services such as SE Ranking, Profound and Bing Webmaster Tools. Check what accounts they need before you assume they are free.
• An audit is a reading, not a ranking. A page that passes every check can still not rank. The skill tells you what is wrong with the page, not whether the topic is winnable.
• Check the claims. An agent's report can misread a page or call a fine thing a problem. Spot-check the top findings in your browser before you act on them.

Four alternatives

Claude SEO is the broadest of the SEO skills. The others are narrower or work from a different source of data. Facts below come from each README and licence file, read on 12 November 2026.

SuperSEO Skills

SuperSEO Skills is 11 skills for page audits, content briefs, article writing, content improvement, keyword deep dives, semantic gap analysis, E-E-A-T audits and topic cluster planning. You give it a URL or a keyword and it reads the top search results itself, with no data exports or API keys. It also installs in Claude Desktop, Cursor and other agents. Because it relies on live search access, the results are only as good as what the agent can fetch, and an agent can still misjudge intent. Use it as a drafting and audit aid if you already know SEO.

Open SEO MCP Skills

Open SEO MCP Skills covers keyword research, rank tracking, site audits, backlinks, competitor gaps and AI visibility, using your own Search Console and Analytics data through a connector server. The plugin bundles the connector. The connector is a hosted Ryze service that you sign in to with Google, and the README says competitor and results-page data comes from a paid provider already wired in, so read what it can access before you connect your accounts. It is the one to pick if you want real rankings and traffic, not estimates.

Agentic SEO Skill

Agentic SEO Skill has 16 sub-skills, 10 specialist agents and 89 scripts, and installs in each tool's own format: a skill folder for Claude Code and Codex, rules files for Cursor and Windsurf, and project instructions for GitHub Copilot and Cline. It suits people who switch between agents. It runs many scripts on your machine, and the README also shows a piped installer, so clone and read the install script first.

Claude Blog

Claude Blog is from the same author as Claude SEO, and sits on the writing side. It researches current sources, writes an answer-first post, checks the on-page SEO, and has a separate reviewer agent score the post out of 100. The README says the reviewer blocks anything under 90 or with a serious issue, and that a fact-check command fetches every cited page. The analyzer needs Python packages, and the README asks you to read the installer script before running it.

For broader marketing work, Marketing Skills holds 53 skill folders and starts from a shared product brief, and our shortlist lists more under SEO and marketing.

Which to pick

Pairing works better than stacking. A sensible set is Claude SEO to find the problems, one writing skill to fix the content, and your own Search Console to check what changed. Two audit skills on the same site mostly give you two long reports saying similar things.

Before you install an SEO skill

• Licence. Read the licence file in the repository. The ones above are MIT or Apache 2.0.
• Piped installers. Clone and read any installer before running it. Claude SEO's README recommends this itself.
• Accounts and keys. Check whether the skill asks you to sign in to a hosted service or paste API keys. Open SEO MCP Skills connects to a hosted service. Do not paste keys into a chat.
• Cost of agents. Skills that run many agents use your plan quickly. Start small.
• What it can fetch. An audit of a site behind a login or a firewall will be thin. Say so in the request if your pages need access.

Our take

Claude SEO is where we would start. It is free, MIT licensed, active as of 12 November, and the README is specific about what each command does and what extras it needs. The audit-then-drift loop is the useful part: you fix things, snapshot, and compare later, which most one-off audits do not give you.

Use it for what it is, a structured reader of your pages, and not as a replacement for keyword and backlink data. Pair it with Search Console, and with Open SEO MCP Skills if you are comfortable with its hosted connector. We have read these projects closely and not run them, so test an audit on one small site you own before you point it at a client's.