The free Claude SEO skill just killed my $2K-a-month SEO agency retainer. And I am never going back. If you have been paying an SEO agency, juggling Ahrefs plus SEMrush plus Surfer subscriptions, or losing entire afternoons to technical audits, this is the moment you stop.
I am Martin Ebongue. I have built 1,500+ automations for solopreneurs and Fortune 500 teams. The new Claude SEO skill replaced a multi-thousand-dollar stack with a free workflow that finishes a full site audit in 20 minutes. This is the same Claude SEO skill I now run on every site I touch.
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Join for $9 →The Problem I Kept Ignoring
For three years I paid an SEO agency $2,000 a month. The deliverable was the same every quarter: a 40-page PDF that listed broken links, thin content, missing schema, slow pages, and a tidy column of “recommendations.” The recommendations rarely got implemented because implementing them was somebody else’s job, and that somebody was usually me.
On top of the retainer, the stack added another $700 a month. Ahrefs for backlinks. SEMrush for keyword tracking. Surfer SEO for on-page scoring. Screaming Frog for crawls. A grammar checker because the agency drafts read like extruded plastic. The bill cleared, the tabs piled up, and the work that actually moved rankings, fixing the technical mess and rewriting the content, kept slipping to “next week.”
The honest math: I was paying roughly $32,400 a year for an SEO function that, in any given month, produced one PDF, three keyword lists, and a Slack message asking me to approve a draft. The audit, the research, and the on-page work I needed were buried under a retainer that incentivized everyone except me to move slowly.
What the Claude SEO Skill Actually Does
The Claude SEO skill is a free workflow you install inside Claude Code. You point it at a domain, walk away for 20 minutes, and come back to a complete optimization plan. The same plan a $2K agency would charge a quarter to deliver. The skill itself is free. Claude Code is free to install. The only cost is whatever Anthropic credits you burn while the agents are running, and on a normal site that lands well under a dollar.
Here is what it does, step by step:
- Spawns five parallel Claude Code agents. Each one crawls a slice of the site at the same time, so a 200-page domain finishes its first pass in roughly three minutes instead of forty.
- Produces a real health score. Core Web Vitals, crawlability, internal link depth, broken redirects, missing meta, duplicate canonicals. The output reads like a Screaming Frog report you can actually act on.
- Breaks down every content cluster. Word count per page, keyword density, intent match against the current search results, and the gaps where a competitor is ranking and you are not.
- Runs keyword research against live SERPs. No Ahrefs login. The skill scrapes the public search results, classifies intent, and ranks opportunities by difficulty vs. realistic traffic, then writes the brief.
- Generates an AI search readiness plan. It checks how the site shows up inside ChatGPT, Perplexity, and Google AI Overviews, then prescribes the schema, the FAQ blocks, and the citable passages you need to fix.
- Builds a second agent that executes the plan. After the audit, the skill writes a fix-it agent that opens the right files, rewrites the meta, patches the schema, regenerates the alt text, and ships the changes. No manual ticket queue.
What a Claude Skill Actually Is, Under the Hood
People hear “skill” and picture a plugin. It is simpler than that, and the simplicity is the
whole point. Anthropic’s own write-up on Claude Skills describes a skill as a
folder holding instructions, scripts and resources that Claude loads when it needs them. Inside
that folder sits a SKILL.md file. That file is the skill. It is text.
Two details in that description do the heavy lifting. The first is that Claude scans the
skills available to it and loads only the minimal files needed for the job in front of it. You
can keep a hundred skills installed without paying a context tax for the ninety-nine you are not
using. The second is that skills are portable and composable. The same folder runs in the Claude
apps, in Claude Code, and through the API, and skills can call each other. The SEO skill can hand
its output to a writing skill without me sitting in the middle copying files.
This is why the comparison to an agency stops being flattering to the agency. An agency
deliverable is a PDF that describes work. A skill is the work, written down in a form that
executes. When I want the audit to behave differently next quarter, I do not book a call and wait
for a scope change. I open a markdown file and edit a sentence.
The Results in 20 Minutes
I ran the Claude SEO skill on a 178-page site as the test. Five Claude Code agents crawled the entire domain in 3 minutes and 11 seconds. By the 17th minute the audit was complete and the optimization plan was sitting in a markdown file with check boxes next to every action.
The breakdown the skill produced:
- Health score: 64/100. Itemized: 22 pages with missing meta descriptions, 14 broken internal links, 9 pages over 3-second load time, 3 duplicate canonicals pointing at deleted URLs.
- Content audit: 41 thin pages flagged. Word count, target keyword, and rewrite priority for each. Six pages flagged as cannibalizing each other for the same query.
- Keyword research: 87 opportunities ranked. Each one tagged with intent (informational, commercial, navigational), realistic traffic estimate, and current competitor in the top 3.
- AI search readiness: 12 fixes prescribed. Schema gaps, missing FAQ blocks, citable passages to add, and the exact pages where AI Overviews are quoting competitors.
Then the skill built a second agent. That agent worked through the optimization plan automatically. It rewrote 22 meta descriptions, patched 14 internal links, added Article and FAQ schema to 31 pages, regenerated alt text for 96 images, and queued the thin-page rewrites for review. Total elapsed time from “point the Claude SEO skill at a domain” to “fixes shipped”: under two hours.
Here is what the old way looked like, compared side by side:
| Factor | SEO agency + paid stack | Free Claude SEO skill |
|---|---|---|
| Monthly cost | $2,700+ (retainer + Ahrefs + SEMrush + Surfer) | $0 (skill) + pennies in Claude credits |
| Time to first audit | 2 to 4 weeks | 20 minutes |
| Crawl depth | Limited by tool plan | Whole site, parallelized |
| Implementation | Recommendations PDF, you do the work | Second agent runs the fixes automatically |
| Keyword research | Static export, refreshed monthly | Live SERPs, refreshed every run |
| AI search readiness | Not covered by most agencies | Schema, FAQ, citable passages prescribed |
| Iteration speed | Quarterly | On demand, same day |
The Retainer Math, and Why It Was Worse Than the Invoice
The $32,400 a year was the part I could see. The expensive part was never on the invoice. It
was the two-to-four week gap between noticing a problem and having a document that described the
problem, followed by another gap before anyone fixed it. I was not buying SEO. I was buying
latency.
The research says this is the normal shape of knowledge work rather than a story about one bad
agency. Asana’s Anatomy of Work study puts 62 percent of the workday inside
repetitive, mundane tasks, with another 3.6 hours a week lost to unnecessary meetings and an
average of 10 apps in daily rotation. My SEO function was a small model of exactly that: five
tools, one recurring call, and a quarterly PDF standing in for the actual job.
Zapier’s report on how marketers use automation lands on the same point from
the other side. Marketers who automate report saving 25 hours a week, more than any other role
surveyed, and 60 percent name saving time as their number one reason for automating in the first
place. Not cost. Time. That matches what changed here. The Claude SEO skill did save me money,
but the money was the smaller half. What it really returned was the two weeks I used to spend
waiting for permission to start.
I have written before about how I got into the habit of buying my way out of work I could have
systematised, and my story is mostly a record of learning that lesson slowly and
expensively.
Why This Is Different from the Last “AI SEO Tool”
Every paid SEO platform in the past two years has bolted an “AI assistant” onto its sidebar. They write meta descriptions. They suggest headings. They paraphrase competitor content. They do not crawl your site, they do not fix your schema, they do not ship the work. The Claude SEO skill is not a sidebar. It is an autonomous workflow that owns the audit, the plan, and the implementation.
The shift is structural. Claude Code can spawn sub-agents, read and write files in your repo, run shell commands, and talk to APIs. A skill is just a markdown file that tells Claude what to do. When the skill is well written, you stop being the bottleneck. You become the person who approves the diff. That is the difference between a tool that helps you do SEO and a skill that does SEO for you.
If you have been treating SEO like a project that needs an agency, the Claude SEO skill is the moment you reclassify it as a workflow that runs on your machine. Same way you reclassified accounting once you switched to a SaaS tool. Same way you reclassified content scheduling once you stopped paying a VA to do it.
What the Claude SEO Skill Does Not Do
I am not going to pretend this replaces every reason an agency exists, because it does not,
and the gaps are worth naming before you cancel anything.
It does not build links. The skill audits, plans, and ships on-page and technical work. It
cannot make another site link to yours, and anyone selling you an AI that does should be treated
carefully. It does not have an opinion about your business. It will tell you that 41 pages are
thin. It will not tell you that eleven of them are thin because the underlying offer was a bad
idea in 2023 and should be deleted rather than rewritten. That judgment is still yours.
It also does not remove the need to check the work. The fix-it agent rewrote 22 meta
descriptions on my test site and 3 of them were worse than what they replaced. I caught them
because I read the diff, which takes about ten minutes and is the entire job now. A skill that
ships changes to a live site without a human reading the diff is not a workflow, it is an
incident waiting to be scheduled.
And it does not fix a site with nothing worth ranking on it. If the content is genuinely thin,
the honest output of a good audit is that you need to write something, which no agent can do on
your behalf in a way anyone would want to read. Several episodes of the podcast
circle this same conclusion from different directions: automation compounds whatever is already
there, and it compounds an empty site into an empty site that loads quickly.
Where to Get the Claude SEO Skill Tutorial
The full tutorial for installing and running the Claude SEO skill is inside Skills Black Magic. Every day, a new Claude Code skill for solopreneurs drops in the membership. The Claude SEO skill is one of them.
When you join Skills Black Magic, you get:
- The exact Claude SEO skill markdown file, ready to drop into your Claude Code skills folder
- The five-agent crawl prompt that produces the 20-minute audit
- The fix-it agent template that executes the optimization plan automatically
- Every Claude Code skill published before this one
- A new Claude Code skill every single day
If you want more context on how I think about replacing agencies with Claude Code skills, my deeper write-ups live on the martinebongue.com blog and the Claude Code Skills category has the full archive.
Frequently Asked Questions
Is the Claude SEO skill really free?
Yes. The skill itself is a free markdown file you drop into Claude Code. Claude Code is also free to install. You pay only for the Anthropic API credits the agents consume while they run, and a normal site audit costs cents, not dollars.
What does the Claude SEO skill replace?
It replaces a full-service SEO agency retainer, plus the paid SEO tool stack: Ahrefs, SEMrush, Surfer, Screaming Frog. It also replaces the hours you spend running technical audits, doing keyword research, and writing on-page optimization tickets.
How long does a full Claude SEO skill audit take?
Under 20 minutes for a typical site. Five Claude Code agents crawl the entire domain in roughly three minutes. The optimization plan is written by minute 17. The fix-it agent that executes the plan can run in parallel or right after.
Do I need to be a developer to use the Claude SEO skill?
No. You install Claude Code, drop the skill into the skills folder, and type a single command. The skill handles the crawling, the analysis, and the writeup. Approving the fixes is a single click. If you can copy and paste a folder, you can run this.
Does the Claude SEO skill cover AI search like ChatGPT and Perplexity?
Yes. The skill explicitly produces an AI search readiness section. It tells you where AI Overviews are quoting competitors instead of you, which schema blocks are missing, and which passages need to be rewritten so AI search engines can cite them.
How does the Claude SEO skill compare to Ahrefs or SEMrush?
Ahrefs and SEMrush are databases with dashboards. They show you data. The Claude SEO skill is a workflow that uses live data to produce a plan and then executes the plan. Different category of tool. Different cost structure.
Can I run the Claude SEO skill on a client site?
Yes. The skill is site-agnostic. Point it at any domain you have permission to audit and it produces the same deliverable. Several members use it as their entire SEO offering for client work.
Get the Claude SEO Skill + 100s More
A new Claude Code skill for solopreneurs drops inside Skills Black Magic every single day. The Claude SEO skill is one of them.
About the Author
Martin Ebongue is the founder of martinebongue.com, an online business and lifestyle design blog focused on helping aspiring entrepreneurs build location-independent businesses. Since 2014, he has been creating and scaling online ventures across multiple niches, from digital products and affiliate marketing to SaaS and content platforms, while traveling the world. He shares the real-world strategies, tools, and systems that work, with a particular focus on AI-powered automation for solopreneurs. Follow him on YouTube, X (Twitter), and Instagram.
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