Verdict: install it. Anthropic’s marketing plugin is free, ships eight skills (drafting, campaign plans, brand review, competitive briefs, performance reports, SEO audits, email sequences) and ten pre-wired connectors including HubSpot, Ahrefs, Klaviyo and Canva. It is a good generalist starter kit, not a specialist tool, so serious SEO or CRO work still needs dedicated skills on top. Install it with claude plugin marketplace add anthropics/knowledge-work-plugins, then claude plugin install marketing@knowledge-work-plugins.
This review reads the plugin the way you would read a contract: file by file. Everything below comes from the source on GitHub, pulled through the GitHub contents API on 2 November 2026, plus the plugin README and connector config. I did not run the plugin against a live brand or campaign for this piece. Where I describe what it does, I am describing what its instructions tell Claude to do, which is a different thing from measured output. I flag that line throughout.
If skills and plugins are new to you, read what Claude Code skills are first. It takes five minutes and makes this page easier.
The short verdict on Anthropic’s marketing plugin
The Anthropic marketing plugin is a solid, free, generalist starter kit: eight skills covering drafting, campaign planning, brand review, competitive briefs, performance reports, SEO audits and email sequences, plus pre-wired connectors for Slack, Canva, Figma, HubSpot, Amplitude, Notion, Ahrefs, Similarweb, Klaviyo and Supermetrics. It is strongest as a workflow layer for teams already using those tools. It is thin on specialist depth compared to community libraries like coreyhaines31/marketingskills.
Here is the scorecard in one table. The scores are my judgement from reading the source, not benchmark results.
| Area | What the source shows | My read |
|---|---|---|
| Price | Free, in a public Anthropic repo | Hard to beat |
| Breadth | 8 skills across content, campaigns, brand, competitors, analytics, SEO, email | Good for a generalist |
| Depth per skill | Structured process docs with inputs, steps and output formats | Moderate, not specialist |
| Connectors | 10 named MCP servers in .mcp.json, 2 more as empty slots | The real differentiator |
| Install | Two CLI commands, or one click in Cowork | Easy |
| Docs accuracy | README lists skill names that no longer match the folders | Minor drift |
| Who it fits | In-house generalists, small teams, Cowork users | Not a fit for deep SEO or CRO specialists |
So: install it, keep it, and add specialist skills on top for the jobs that pay your bills.
What the marketing plugin actually is
It is a Claude plugin, published by Anthropic in the anthropics/knowledge-work-plugins GitHub repo, that bundles marketing skills and MCP connector settings into one installable unit. The plugin manifest names it marketing, version 1.2.0, author Anthropic, with the description “Create content, plan campaigns, and analyze performance across marketing channels.”
The README is direct about its main target. It says the plugin is “primarily designed for Cowork, Anthropic’s agentic desktop application, though it also works in Claude Code.” That matters. Cowork users get a click-to-install path, while Claude Code users go through the CLI.
Where it lives in the repo
The parent repo, anthropics/knowledge-work-plugins, held 34,360 stars on 2 November 2026 with a last push on 1 November 2026, per the GitHub API. The marketing folder sits beside sibling plugins for sales, finance, legal, data, design, engineering, customer support, product management, human resources, operations, productivity, enterprise search, bio-research and small business. There is also a partner-built section, which is where the Tribe AI brand-voice plugin is registered (more on that below).
The marketing folder itself contains:
.claude-plugin/(the manifest).mcp.json(connector config)CONNECTORS.md(how tool placeholders work)LICENSEREADME.mdskills/(eight skill folders)
Plugin versus skill, in one paragraph
A skill is a folder with a SKILL.md that teaches Claude one job. A plugin is a package that can ship several skills, commands and MCP server configs together. You install a plugin once and everything inside arrives at the same time. If you want the longer explanation, see how to install Claude Code skills.
The takeaway: this is a package of eight instruction sets and a connector map, not a model, not a SaaS tool, and not a data source by itself.
The exact install command (verified)
The verified install command, copied from the plugin README on 2 November 2026, is two lines: add the marketplace, then install marketing@knowledge-work-plugins.
claude plugin marketplace add anthropics/knowledge-work-plugins
claude plugin install marketing@knowledge-work-pluginsThat confirms the marketing@knowledge-work-plugins identifier. The format is plugin-name@marketplace-name, and the marketplace name is knowledge-work-plugins because that is how the repo’s marketplace file registers itself. The top-level README uses the same pattern for other plugins, for example sales@knowledge-work-plugins.
Three install paths
| Path | Steps | Best for |
|---|---|---|
| Claude Code CLI | Run the two commands above | Developers, technical marketers |
| Cowork | Install from the plugin browser inside the app | Non-technical marketers |
| claude.com/plugins | Browse and install from Anthropic’s plugin directory, which the repo README links | Discovery |
What happens after install
The repo README says plugins “activate automatically,” that skills “fire when relevant,” and that slash commands become available in your session, with examples like /sales:call-prep. For marketing, that means commands in the shape /marketing:<name>, or the bare names the plugin README shows, such as /draft-content. Which form you see can depend on your client version, so type / and check the list after install.
One honest caveat: I did not run the install for this review. The commands above are copied from the README, not from a terminal session I watched succeed. If you hit an error, the usual causes are an older Claude Code version without plugin support, or a typo in the marketplace name.
Every component inside the plugin, listed
The marketing plugin ships eight skill folders and ten configured MCP connectors, with two more connector slots (Google Calendar and Gmail) present but left without a URL. Here is the full component table, built from the GitHub contents API and each SKILL.md frontmatter.
| Component | Type | What its instructions cover | User-invocable |
|---|---|---|---|
draft-content | Skill (slash command) | Blog posts, social, newsletters, landing pages, press releases, case studies, with channel formatting and SEO notes | Yes, takes <content type and topic> |
content-creation | Skill (background) | Templates, channel best practice, headline options, CTAs | No (user-invocable: false) |
campaign-plan | Skill (slash command) | Campaign brief: objectives, audience, messaging, channels, week-by-week calendar, metrics | Yes |
brand-review | Skill (slash command) | Checks content against voice, style guide and messaging pillars; flags deviations by severity with before/after fixes; screens for unsubstantiated claims and missing disclaimers | Yes |
competitive-brief | Skill (slash command) | Competitor positioning and messaging comparison, content gaps, battlecards | Yes |
performance-report | Skill (slash command) | Metrics, trend analysis, wins and misses, prioritised recommendations | Yes |
seo-audit | Skill (slash command) | Five modes: full audit, keyword research, content gap, technical check, competitor comparison; splits output into quick wins and strategic work | Yes |
email-sequence | Skill (slash command) | Multi-email flows with copy, timing, branching, exit conditions, A/B suggestions, flow diagram | Yes |
The connector map
| Category placeholder | Pre-configured server | Alternatives the docs name |
|---|---|---|
~~chat | Slack | Microsoft Teams |
~~design | Canva, Figma | Adobe Creative Cloud |
~~marketing automation | HubSpot | Marketo, Pardot, Mailchimp |
~~product analytics | Amplitude (US and EU endpoints) | Mixpanel, Google Analytics |
~~knowledge base | Notion | Confluence, Guru |
~~SEO | Ahrefs, Similarweb | Semrush, Moz |
~~email marketing | Klaviyo | Mailchimp, Brevo, Customer.io |
~~marketing analytics | Supermetrics | Google Analytics, Mailchimp, Semrush |
The ~~category placeholder system is a smart design choice. Skills say “pull data from ~~SEO” instead of “pull data from Ahrefs,” so if your team uses Semrush you connect a Semrush MCP server and the same instructions still work. CONNECTORS.md describes the plugin as “tool-agnostic” for exactly this reason.
A small documentation mismatch
The README has separate tables for seven “Commands” and five “Skills.” The skills table names campaign-planning, brand-voice, competitive-analysis and performance-analytics. None of those four folders exist in the current skills/ directory. What exists is the eight folders above, and seven of them map to the README’s command list. There is no commands/ folder (the API returns Not Found).
My read is that the plugin moved commands into the skills format and the README skills table was not updated. It does not break anything, but if you search for brand-voice inside this plugin, you will not find it. That name belongs to the separate Tribe AI plugin.
How each skill works, from its source
Every skill follows the same pattern: a trigger, a list of inputs Claude must gather (and ask for if missing), a numbered process, and a defined output format. That structure is the plugin’s main quality signal. It stops Claude from guessing at the brief.
seo-audit
The seo-audit skill takes <url or topic> [audit type]. If you skip the type, it defaults to a full site audit. If the audit needs competitors and you give none, the instructions tell Claude to use web search to identify two or three likely competitors. The output is framed as a “prioritized action plan a marketer can execute immediately,” split into quick wins and strategic investments.
What this means in practice: without an SEO connector, keyword volumes and backlink counts come from whatever Claude can find on the web or estimate. With Ahrefs or Similarweb connected, the same skill can work from real tool data. That gap is large, and the skill text alone cannot close it.
brand-review
brand-review accepts pasted text, a file path, a knowledge-base reference, a URL, or several pieces at once. If a brand style guide is configured in local settings, it uses that. If not, the source has Claude ask a specific question: do you have a style guide, or should it do a general review for clarity, consistency and professionalism?
It then checks voice and tone, flags sentences that drift, and screens for legal risks like unsubstantiated claims and missing disclaimers. That last part is worth having on any team that publishes fast.
draft-content and content-creation
These two are a pair. draft-content is the command you call. content-creation is marked user-invocable: false, so it loads in the background as reference: templates, channel norms, headline formulas, CTA guidance. The README’s example asks for a 1,200-word B2B blog post with audience, key messages and tone specified up front.
campaign-plan, competitive-brief, performance-report, email-sequence
campaign-planturns a goal into a brief with a week-by-week calendar and dependencies. The README example uses a six-week launch with a budget range.competitive-briefproduces positioning comparisons and battlecards, and is pitched for “when a competitor makes a move.”performance-reporttranslates data into an executive summary with next-period priorities. Its value depends almost entirely on connected analytics.email-sequencecovers onboarding, nurture, re-engagement, win-back and launch flows, with branching logic and exit conditions.
Takeaway: the skills are process scaffolds. They make Claude ask the right questions and return a consistent shape. The quality of what goes in still decides the quality of what comes out.
Configuring brand voice so the plugin stops guessing
The README says to put your brand voice, style guide and target personas in a “local settings file” so /draft-content and /brand-review apply them automatically. This one step decides whether the plugin feels generic or useful.
The README does not print a file path or schema for that settings file, which is a gap. In practice you have three workable options:
- Paste guidelines when asked.
brand-reviewwill prompt you. Fine for a one-off. - Keep a style guide in your project and point to it. In Claude Code, a voice doc in the repo plus a line in
CLAUDE.mdtelling Claude to read it before drafting works with any skill. - Store it in Notion and connect the Notion MCP. The skill accepts “a ~~knowledge base reference,” so a Notion page can be the source of truth.
What a usable voice doc contains
| Section | Example content |
|---|---|
| Voice attributes | Three to five adjectives, each with a “this, not that” pair |
| Banned words | Terms you never use, plus competitor names you never mention |
| Terminology | Product names, capitalisation, approved abbreviations |
| Claims rules | What legal has approved, what needs a source |
| Personas | One paragraph per buyer type |
| Samples | Three published pieces you consider on-voice |
If you have no voice doc yet, that is the job the Tribe AI brand-voice plugin targets. For a broader set of options, read Claude Code skills for brand voice.
The partner-built brand-voice plugin from Tribe AI
Brand Voice is a free plugin authored by Tribe AI and listed in the same knowledge-work-plugins marketplace, under ./partner-built/brand-voice. Its marketplace description reads: “Discover your brand voice from existing documents and conversations, generate enforceable guidelines, and validate AI-generated content against your established tone and positioning.”
That description fills the exact gap the Anthropic marketing plugin leaves open. The marketing plugin enforces a voice you already documented. Brand Voice claims to help you document it in the first place, from material you already have.
Because it is registered in the same marketplace, the install pattern should follow the same name@marketplace format:
claude plugin install brand-voice@knowledge-work-pluginsTo be clear about sourcing: that command is inferred from the marketplace entry name and the repo’s documented install pattern, not copied from a Brand Voice README. My API request for the partner-built folder contents returned nothing on 2 November 2026, so I could not list its skills. Check the plugin browser in Cowork or the repo before you rely on it.
How the two plugins fit together
| Step | Plugin | Job |
|---|---|---|
| 1 | Brand Voice (Tribe AI) | Pull voice patterns from existing docs, write guidelines |
| 2 | You | Edit and approve the guidelines |
| 3 | Marketing (Anthropic) | /draft-content writes with them |
| 4 | Marketing (Anthropic) | /brand-review checks drafts against them |
That is a sensible free stack for a small team with no style guide.
Pros and cons of Anthropic’s marketing plugin
The biggest pros are price, official maintenance, connector coverage and consistent structure. The biggest cons are generalist depth, outcomes that depend on paid tools, and small documentation drift.
Pros
- Free and public. No licence fee, and you can read every instruction before installing.
- Official source. Published under Anthropic’s GitHub org, with the repo pushed on 1 November 2026. It is less likely to go stale than a side project.
- Connector map included. Ten MCP servers pre-configured, including HubSpot, Ahrefs, Klaviyo and Supermetrics. No community library I compared ships that.
- Tool-agnostic placeholders.
~~SEOand friends mean you can swap Ahrefs for Semrush without editing skills. - Asks before it assumes. Every skill lists required inputs and tells Claude to ask when they are missing.
- Legal screening in brand review. Flags unsubstantiated claims and missing disclaimers.
- Works in Cowork. Non-technical marketers get a GUI install.
Cons
- Generalist depth. Eight skills cover the whole function. A specialist library spends a whole skill on what this one spends a section on.
- Data quality is borrowed. The SEO, performance and competitor skills only get sharp with paid tools connected. Ahrefs, Similarweb and Supermetrics are not free.
- README drift. Four skill names in the README do not match current folders.
- No settings schema documented. “Local settings file” is mentioned without a path or format.
- No CRO, paid ads or pricing skills. Landing page optimisation, ad copy testing and pricing pages are not covered as dedicated skills.
- Cowork-first. Claude Code users get the plugin, but the docs and examples lean toward the desktop app.
| Verdict factor | Score /10 | Why |
|---|---|---|
| Value for money | 10 | Free |
| Breadth | 8 | Covers the core function |
| Depth | 6 | Process scaffolds, not specialist playbooks |
| Integrations | 9 | Best connector coverage I found |
| Docs | 6 | Clear install, stale skills table |
These are editorial scores from source review, not test results.
Anthropic’s plugin vs coreyhaines31/marketingskills
Corey Haines’s marketingskills is the deeper library for specialist work; Anthropic’s plugin is the better workflow layer for teams that live in connected tools. Most marketers should run both.
coreyhaines31/marketingskills had 57,803 stars and a last push on 31 October 2026 according to the GitHub API figures in our sibling post on Claude Code skills for ad copy. It is MIT-licensed and organises skills by specific job: copywriting, ad creative, page CRO, SEO, pricing and more.
| Factor | Anthropic marketing plugin | coreyhaines31/marketingskills |
|---|---|---|
| Publisher | Anthropic | Corey Haines (community) |
| Price | Free | Free (MIT) |
| Format | Plugin with 8 skills + MCP config | Skill library |
| Skill granularity | One skill per marketing function | Many narrow skills per job |
| Connectors | 10 pre-configured | Not the focus |
| CRO and pricing | Not covered as dedicated skills | Covered |
| Ad copy | Inside draft-content | Dedicated ad-creative and ads skills |
| Best for | Cross-function teams, Cowork | Specialists, solo marketers, founders |
When to pick which
- You need a campaign plan, a performance report from HubSpot data, and a brand check on Friday’s newsletter: Anthropic’s plugin.
- You need a landing page rewrite with CRO logic, or a pricing page: marketingskills.
- You need both: install both. Skills from different sources coexist. If two skills overlap on a task, name the one you want in your prompt.
Our roundup of Claude Code skills for marketers covers more libraries side by side.
Anthropic’s plugin vs paid skill packs
Paid packs sell volume and curation; the Anthropic plugin sells integration and an official maintainer. None of the three paid packs below replaces the connector layer, and the free plugin does not replace their niche depth.
| Product | Price | Model | What you get (per sellers’ pages) | Compared to Anthropic’s plugin |
|---|---|---|---|---|
| Anthropic marketing plugin | Free | Open source | 8 skills, 10 connectors | Baseline |
| Inflectual bundle | $167 one-time | Paid bundle | A large marketing skill bundle | More volume; you trim what you do not need |
| Contra SEO & AEO pack | $39 | Paid pack | SEO and answer-engine optimisation skills | Narrower and deeper on search than seo-audit |
| SuperSkills | $50 | Paid pack (superskills-one.vercel.app) | A curated skills collection | Paid curation versus free official |
I have not bought or run any of these packs for this review, so I am not scoring their output. The prices are as briefed and listed on 2 November 2026; check the sales pages before buying, since prices on small digital products change.
A simple buying rule
- Install the free Anthropic plugin and marketingskills first.
- Use them for two weeks on real work.
- Write down the tasks where both fell short.
- Buy a pack only if its contents list names those exact tasks.
The $39 Contra pack is the easiest case to argue for if search is your core channel and seo-audit feels too broad. For more search options, see Claude Code skills for SEO and Claude Code skills for GEO.
Who should install it, and who should skip it
Install it if you are an in-house marketer or small team using several of the connected tools. Skip it as your only toolkit if you are a specialist whose job is one deep channel.
Good fit
- Marketing generalists at startups who cover content, email, reporting and launches in one week.
- HubSpot, Klaviyo or Notion teams, because the connectors are already mapped.
- Cowork users who want a GUI install.
- Founders doing their own marketing. See Claude Code skills for founders.
- Agencies wanting a consistent brief and report format across clients. See Claude Code skills for marketing agencies.
Weaker fit
- Technical SEOs who need crawl-level detail. See Claude Code skills for technical SEO.
- PPC managers who need ad-account audits. See Claude Code skills for PPC.
- Conversion copywriters who need sales-page structure. See Claude Code skills for sales pages.
| Role | Install? | Add on top |
|---|---|---|
| Content marketer | Yes | Humanizer, editing skills |
| Email marketer | Yes | Klaviyo connector, email-specific skills |
| Product marketer | Yes | marketingskills positioning skills |
| SEO specialist | Optional | Dedicated SEO and GEO skills |
| PPC manager | Optional | Ads audit plugin, Google Ads MCP |
Common mistakes when using the marketing plugin
The most common mistake is running the data-heavy skills with no connectors and treating the output as measured fact. Here are the ones the source makes predictable.
- Trusting keyword numbers without a connector. With no
~~SEOtool,seo-auditfalls back to web search. Treat volumes as estimates. - Skipping brand configuration. Without a voice doc,
brand-reviewruns a generic clarity check. That is useful, but it is not a brand review. - Looking for a
brand-voiceskill. It is in the README, not in the folder. Usebrand-review, or install the Tribe AI plugin. - Running
performance-reporton pasted screenshots. It will summarise, but trends need real exported data or a connected analytics tool. - Publishing drafts unedited. The skills structure a draft; they do not remove every AI tell. Run a pass with a humanizer. See Claude Code skills for humanizing AI writing.
- Connecting every MCP server at once. Each connector needs auth. Start with the two your team uses daily.
- Assuming Gmail and Calendar work. Both slots exist in
.mcp.jsonwith empty URLs. You need to supply servers yourself.
Takeaway: the plugin is honest about what it needs. Most bad output traces back to missing inputs.
A first-week plan for the plugin
Spend the first week wiring one connector, writing one voice doc, and running each command once on real work. This is a suggested plan, not a tested programme.
| Day | Task | Command |
|---|---|---|
| 1 | Install, list commands, connect Notion or Slack | CLI install |
| 2 | Write or import your voice doc | Brand Voice (Tribe AI) or manual |
| 3 | Review last month’s best post for drift | /brand-review |
| 4 | Draft one newsletter | /draft-content |
| 5 | Plan next month’s launch | /campaign-plan |
| 6 | Brief on your main competitor | /competitive-brief |
| 7 | Audit your top landing page | /seo-audit |
Keep notes on where each output needed heavy edits. Those notes are your shopping list for specialist skills, or for writing your own. See how to build a Claude Code skill.
Frequently asked questions
Is Anthropic’s marketing plugin free?
Yes. It is published in the public anthropics/knowledge-work-plugins GitHub repo with no fee. You still need a Claude plan that supports plugins, and any paid tools you connect (such as Ahrefs) bill separately.
What is the install command for the marketing plugin?
Run claude plugin marketplace add anthropics/knowledge-work-plugins, then claude plugin install marketing@knowledge-work-plugins. Both lines are copied from the plugin README as of 2 November 2026.
Does the marketing plugin work in Claude Code or only in Cowork?
Both. The README says it is “primarily designed for Cowork” but “also works in Claude Code.”
How many skills does the plugin include?
Eight skill folders: draft-content, content-creation, campaign-plan, brand-review, competitive-brief, performance-report, seo-audit and email-sequence. Seven are user-invocable commands; content-creation runs in the background.
Which tools does it connect to?
Slack, Canva, Figma, HubSpot, Amplitude, Notion, Ahrefs, Similarweb, Klaviyo and Supermetrics are configured in .mcp.json. Gmail and Google Calendar appear as empty slots.
Can I use Semrush instead of Ahrefs?
The connectors doc lists Semrush and Moz as alternatives for the ~~SEO category. You would need to add a Semrush MCP server yourself.
Does the plugin have a brand voice skill?
Not as a folder. The README mentions brand-voice, but the current plugin ships brand-review. The separate Tribe AI Brand Voice plugin handles voice discovery.
Who made the Brand Voice plugin?
Tribe AI, according to the author field in the knowledge-work-plugins marketplace file. It is listed under the partner-built section.
Is the marketing plugin good for SEO?
It is a reasonable starting point. seo-audit has five modes and a quick-wins output. Specialists will want dedicated SEO and GEO skills and a real SEO data connector.
How does it compare to coreyhaines31/marketingskills?
Anthropic’s plugin is broader and better connected. marketingskills is deeper per task, with dedicated CRO, pricing and ad skills. Running both is common.
Should I buy a paid skill pack instead?
Not instead. Start with the free plugin and a free library, find the gaps, then buy a pack (Inflectual at $167, Contra at $39 or SuperSkills at $50) only if it covers those gaps.
Where do I put my brand style guide?
The README says a “local settings file” but does not document a path. A voice doc in your project referenced from CLAUDE.md, or a Notion page via the Notion connector, both work with the skills as written.
Can the plugin send emails or post to Slack?
With the Slack connector, the README says it can share drafts and reports with your team. Gmail has no server configured by default. Always review anything before it goes out.
What version is the marketing plugin?
The manifest lists version 1.2.0 as of 2 November 2026.
Does it write ad copy?
draft-content covers social and landing pages, but there is no dedicated ad copy skill. See our ad copy roundup for specialist options.
Is the plugin’s output accurate?
It depends on the inputs. With connected data, reports draw on that data. Without it, Claude estimates or searches the web. Check numbers before publishing.
How do I update the plugin?
Plugins installed from a marketplace update through the Claude plugin system. Re-running the marketplace add or using your client’s plugin manager pulls the latest version.
Sources and methodology
This is a documentation-based review. I read the plugin source; I did not run it.
- Plugin README, manifest,
.mcp.jsonandCONNECTORS.md:github.com/anthropics/knowledge-work-plugins/tree/main/marketing, fetched 2 November 2026. - Skill descriptions: each
skills/*/SKILL.mdfrontmatter, same date. - Repo stars and push date: GitHub REST API, 2 November 2026.
- Brand Voice listing:
.claude-plugin/marketplace.jsonin the same repo. - marketingskills figures: GitHub API data recorded 1 November 2026 in our ad copy roundup.
- Paid pack prices: as briefed and listed on sellers’ pages; not purchased.
Your next step
Install the plugin, connect one tool you already pay for, and run /brand-review on your last published piece. It takes ten minutes and shows you fast whether the plugin fits how your team writes. Then add specialist skills where it falls short. Our full guide to Claude Code skills for marketers is the next read.
