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The 12 Skills Worth Installing for SEO Work

A working SEO stack for agent-assisted sites — ordered by the stage of the job you'd actually use each one at, not by download count.

12 skillsCurated by TrustedSkills EditorialUpdated 27 Sept 2026

There are close to 400 skills in this registry that mention SEO somewhere. Almost none of that is useful as a shopping list, because SEO isn't one job — it's six or seven different jobs that happen in a rough order, and a skill that's excellent at the fourth one is useless if you haven't done the first.

So this list isn't "the 12 most installed SEO skills". It's a stack: one or two picks per stage of an actual SEO engagement, in the order you'd reach for them. If you install all twelve you have coverage from first crawl to measurement. If you install the first three you have the 80% that matters on a site nobody has audited yet.

The stages, in order: diagnose → fix the technical floor → fix the page → structure the data → find the demand → study the competition → earn authority → optimise for AI search → measure.

What this list is based on

None of the twelve has been hands-on tested by us yet. This is a curated shortlist, not a benchmark. Each pick is based on what the skill's source and documentation say it does, its publisher, and its install base in this registry — all of which you can check yourself from the cards below.

That distinction matters and we'd rather be boring about it than imply work we haven't done. As our hands-on review programme works through these, each entry that gets run against real work will carry a 🧪 Reviewed badge linking to the review, and the note here will shrink accordingly. Nothing on this page reports a measured result.

The list

  1. 1

    Stage 1 — Diagnose

    SEO Audit

    coreyhaines31·Checked·33.4k installs

    The most-installed SEO skill in the registry by a wide margin, and the right first move on a site nobody has looked at properly. It's part of coreyhaines31/marketingskills, a large and heavily-adopted marketing skill suite, so the audit sits alongside adjacent skills you'll likely want later. Start here to get a map of what's wrong before you spend effort anywhere else.

    Install instructions →Source
  2. 2

    Stage 1 — Diagnose (crawl level)

    Website Audit Skill

    squirrelscan·Checked·32.1k installs

    Where the previous pick gives you a strategic read, this one goes after the concrete crawl-level breakage: SEO issues, broken links and content gaps. Published by Squirrelscan from its own skills repository. Run both — they disagree often enough to be worth the five minutes, and broken links are the cheapest win on any established site.

    Install instructions →Source
  3. 3

    Stage 2 — Technical floor

    Technical Seo Checker

    aaron-he-zhu·Listed·616 installs

    Crawl errors, site speed problems and mobile usability — the unglamorous floor that has to be solid before content work returns anything. Part of aaron-he-zhu/seo-geo-claude-skills, a focused SEO-and-GEO suite rather than a general marketing kit, which is why three of its skills earn slots here.

    The listed install command no longer works. The skill page says what we know about where it went.

    Install instructions →Source
  4. 4

    Stage 2 — Technical floor (performance)

    Core Web Vitals

    addyosmani·Checked·2.1k installs

    Targeted analysis of Core Web Vitals with specific optimisation suggestions. Published by Addy Osmani as part of web-quality-skills — the strongest publisher signal on this list, given his long track record on web performance specifically. One thing to check on any performance skill, this one included: that it works in INP rather than FID, since Google replaced the latter in 2024. Our own summary of this skill still says FID, which is a gap in our registry data rather than a judgement on the skill.

    Install instructions →Source
  5. 5

    Stage 3 — Fix the page

    On Page Seo Auditor

    aaron-he-zhu·Listed·600 installs

    Once the site-wide floor is solid, the work becomes page-by-page: content and structure analysis with actionable recommendations for the page in front of you. This is the pick you'll run most often over the life of a site, which is why it's worth having even though the audit skills above overlap it slightly.

    The listed install command no longer works. The skill page says what we know about where it went.

    Install instructions →Source
  6. 6

    Stage 3 — Fix the page (titles and meta)

    Seo Meta

    jezweb·Listed·547 installs

    Narrow on purpose: titles and meta descriptions, optimised for ranking and click-through. Titles are still one of the highest-leverage things on a page and they're tedious to do well at volume, which makes this exactly the kind of small job worth handing to an agent. From jezweb/claude-skills.

    The listed install command no longer works. The skill page says what we know about where it went.

    Install instructions →Source
  7. 7

    Stage 4 — Structure the data

    Schema Markup

    coreyhaines31·Listed·13.1k installs

    Generates Schema.org markup for rich-snippet eligibility. Well-installed, and structured data is genuinely a place where generation beats hand-writing JSON-LD. One caution from experience: always validate generated markup against the page it describes before shipping it — schema that misdescribes its page is worse than no schema, and no generator can check that for you.

    The listed install command no longer works. The skill page says what we know about where it went.

    Install instructions →Source
  8. 8

    Stage 5 — Find the demand

    Find Keywords

    calm-north·Checked·2.6k installs

    Extracts relevant keywords from a body of text — useful for working out what a page you already have is actually about, which is a different and often more valuable question than what you wish it ranked for. Part of calm-north/seojuice-skills. Note this is text-derived keyword extraction, not search-volume data; for volume you still need a data provider behind an MCP server.

    Install instructions →Source
  9. 9

    Stage 6 — Study the competition

    Target Serp

    calm-north·Checked·839 installs

    Identifies what's currently ranking for a keyword so you can see the shape of what you're up against before writing anything. This is the step most people skip, and it's the reason a lot of otherwise-good content never ranks — it was written to a brief rather than to a SERP.

    Install instructions →Source
  10. 10

    Stage 7 — Earn authority

    Backlink Analyzer

    aaron-he-zhu·Listed·4.9k installs

    Analyses a site's backlink profile for authority, risk and opportunity. Off-page is the hardest stage to automate honestly, so calibrate expectations: this is analysis to direct your effort, not link acquisition. Depth here depends heavily on what backlink data source you can connect.

    The listed install command no longer works. The skill page says what we know about where it went.

    Install instructions →Source
  11. 11

    Stage 8 — Optimise for AI search

    Ai Seo

    coreyhaines31·Checked·5.4k installs

    AI search is now a meaningful share of how people find things, and being cited by an assistant follows different rules from ranking blue links. This pick covers that stage from the same widely-adopted marketingskills suite as the stage 1 audit. Fair warning: our own registry summary for this one is auto-generated and thin, so treat the source repository as the real documentation before relying on it.

    Install instructions →Source
  12. 12

    Stage 9 — Measure

    Analytics Tracking

    coreyhaines31·Listed·13.3k installs

    Conversions, bounce rate and user flow. Last on the list and non-negotiable: without measurement the other eleven stages are opinion. Pair it with Search Console data — analytics tells you what happened on the site, only Search Console tells you what happened in the results.

    The listed install command no longer works. The skill page says what we know about where it went.

    Install instructions →Source

How this list was built

How the twelve were chosen. Each pick had to (1) be present in this registry with a resolvable source repository, (2) do one clearly-defined job rather than being a general marketing assistant, and (3) occupy a distinct stage in the workflow above — no two picks doing the same job.

Where two skills competed for the same slot, the tiebreak was publisher track record and install base, both visible on each card below.

What we deliberately left off.

  • Programmatic SEO skills. There's a well-installed programmatic-seo skill in the registry and it is genuinely capable. It's off this list on purpose: pointing an agent at page generation before you've fixed a site's technical floor is the fastest way to manufacture an index-bloat problem. It belongs in a later collection, not a starter twelve.
  • All-in-one marketing suites. Several broad suites include an SEO module. They're reasonable buys, but they make it hard to tell which part of the toolchain you're actually using.
  • Niche vertical skills. App-store optimisation and research-lab-specific SEO skills are both in the registry and both fine at their job — just not part of a general web SEO stack.
  • Anything we couldn't trace to a source. If we couldn't open the repository, it didn't make the list.

About the curator

TrustedSkills Editorial

Curated with input from a decade of hands-on agency SEO work across technical audits, content strategy and programmatic builds.

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