Marketing Skills Review 2026: Free Claude Code Skills That Make AI Work Like a Marketer

Description

What is Marketing Skills?

Marketing Skills is a free, open-source library of 52 marketing “skills” for AI agents, built by Corey Haines, the founder of the conversion agency Conversion Factory. Each skill is a markdown playbook that teaches an agent such as Claude Code, Cursor or OpenAI Codex how to do one marketing job properly: conversion rate optimisation, copywriting, SEO, AI search, paid ads, email, pricing, launches and more.

Out of the box, an AI assistant knows a lot about marketing in general and nothing about your product. Marketing Skills closes that gap. You describe your product, audience and positioning once, and every skill reads that context before it starts work, so you stop re-explaining the basics in every chat.

Category: AI Agent Skills | Marketing Automation | Conversion Optimisation | SEO
Best For: technical marketers, founders and agency teams who already use Claude Code, Cursor or Codex, or want to start

Key Features of Marketing Skills

52 Skills Across the Whole Funnel

The library covers SEO and content (seo-audit, ai-seo, programmatic-seo, schema, site-architecture), conversion (cro, signup, onboarding, popups, paywalls), copy (copywriting, copy-editing, cold-email, emails, social), paid and measurement (ads, ad-creative, ab-testing, analytics, conversion-tracking, attribution), growth and retention (referrals, free-tools, churn-prevention, lead-magnets) and strategy (pricing, launch, marketing-plan, marketing-psychology, competitors).

One Shared Product Context

The product-marketing skill is the foundation. It builds a single context document (.agents/product-marketing.md) covering your product, audience, personas, pain points, competitors, objections, customer language and brand voice. The README says every other skill checks it first, so a landing-page audit, a cold email and a pricing review all start from the same understanding of your business.

Skills That Work Together

Skills reference each other rather than working in isolation. For example, copywriting, cro and ab-testing hand off to one another, as do seo-audit, schema and ai-seo, and customer-research feeds copywriting, cro and competitors.

AI Search (GEO) Built In

The ai-seo skill is written for getting cited by LLMs and appearing in AI-generated answers, covering AEO, GEO, LLMO and AI Overviews. It sits alongside the classic SEO skills rather than replacing them. To measure whether your pages are actually being cited, pair it with a tracker: read our Peec AI review or browse the GEO tools category.

Install Your Way

Install with one command (npx skills add coreyhaines31/marketingskills), as a Claude Code plugin, as an OpenAI Codex plugin, by cloning the repo, or as one-skill ZIP files you upload to Claude on the web. You can install all 52 or only the ones you need.

Optional Connections to Your Marketing Data

A guided setup helps you connect tools such as GA4, Google Ads, Meta Ads, LinkedIn Ads and Stripe to a local agent. It starts with a single read-only report and keeps credentials in a private local file, never in the chat.

Free, With Disclosed Partners

The library is MIT-licensed. It is funded by “Verified Partners” (Converly, Ploy, AIsa and Omnia when we checked), which are marked and disclosed. The project’s partner rules say sponsorship “funds the work, never the recommendations”.

Features as described in the Marketing Skills README and on marketing-skills.com, 22 October 2026.

How Marketing Skills Works

• Install: run npx skills add coreyhaines31/marketingskills in your project (Node.js 22.20 or later), or add it as a Claude Code plugin
• Set your context: ask your agent to set up product marketing context. It can draft it from your website and codebase, or interview you section by section
• Ask in plain English: “Help me optimise this landing page for conversions” uses the cro skill; “Create a 5-email welcome sequence” uses the emails skill
• Call a skill directly: type /cro, /emails or /seo-audit to choose the skill yourself
• Review and ship: treat the output as a strong first draft from a trained junior marketer, then apply your own judgement

Marketing Skills Pricing (October 2026)

The library itself costs nothing. You pay only for the AI tool you run it in. Checked on GitHub on 22 October 2026.

Who Should Use Marketing Skills?

• Technical marketers who already work in Claude Code, Cursor or Codex and want the agent to follow proven playbooks
• SaaS founders doing their own marketing who need CRO, copy, pricing and launch help without hiring
• Agencies that want a consistent, documented process across clients (one product context per client)
• SEO and content teams that want classic SEO and AI search (GEO) work in the same workflow
• Marketers learning AI agents, as a ready-made library to learn from and adapt

Marketing Skills vs Alternatives

Marketing Skills is a set of instructions, not a hosted app. It makes your AI agent better at marketing tasks, but it doesn’t send emails, run ads or track rankings on its own. That’s why it pairs well with specialist tools rather than replacing them. If you’re still working from copy-and-paste prompts, our ChatGPT prompts for digital marketers are a good bank to turn into skills. For hosted agents that run campaigns on their own, see the best AI marketing agents in 2026.

Pair these skills with audience research: our Articos review covers its MCP connector for Claude, ChatGPT, Cursor and Gemini. Prefer an AI system that runs B2B demand generation for you instead of building it yourself? Read our Different AI review.

Getting Started with Marketing Skills

Run a simple one-week test:

• Install just three skills: npx skills add coreyhaines31/marketingskills --skill product-marketing cro copywriting
• Ask your agent to set up your product marketing context, and correct its first draft
• Ask it to audit your highest-traffic landing page and rewrite the hero section
• Compare the rewrite with your current version, and A/B test it if the change is meaningful
• Add more skills (emails, ai-seo, ads) only once the first three are earning their keep

For a full walkthrough, with installation steps for Claude, Claude Code and Cursor and example prompts, read our guide: How to use Claude Skills for marketing.

Related on DMS

• Our practical guide to AI agents for digital marketing covers the nine agent tools that matter.
• Testing the cro skill? Compare it with dedicated AI conversion rate optimisation tools.
• Using the copywriting skill? See how it stacks up against the 27 best AI writing tools for 2026.

Frequently Asked Questions About Marketing Skills

What is Marketing Skills by Corey Haines?
Marketing Skills is a free, open-source collection of 52 AI agent skills for marketing tasks such as CRO, copywriting, SEO, AI search, ads and email. It works with Claude Code, Cursor, OpenAI Codex and other agents that support the Agent Skills format.

Is Marketing Skills free?
Yes. The library is released under the MIT licence, so you can use, copy and adapt it, including commercially. You only pay for the AI agent you run it in.

How do I install Marketing Skills?
The quickest way is npx skills add coreyhaines31/marketingskills from your project folder, which needs Node.js 22.20 or later. You can also install it as a Claude Code plugin, a Codex plugin, by cloning the GitHub repo, or by uploading single-skill ZIP files to Claude on the web.

Does Marketing Skills work in Claude on the web?
Yes, one skill at a time. Download a -claude-web.zip file from the GitHub releases page, then upload it in Claude under Customize, Skills. Code execution must be switched on in your Claude settings.

Does Marketing Skills work with Cursor?
Yes. The skills CLI supports Cursor, and Cursor loads skills from .agents/skills/ and .cursor/skills/, as well as Claude’s .claude/skills/ folder.

Do I need to know how to code?
No, but you need to be comfortable typing a command in a terminal. Corey Haines publishes a companion guide, Coding for Marketers, for people new to terminals and coding agents.

Does Marketing Skills help with AI search and GEO?
Yes. The ai-seo skill covers getting cited by LLMs and appearing in AI answers, and works alongside the seo-audit, schema and programmatic-seo skills.

Final Verdict

Marketing Skills is the most useful free resource we’ve seen for marketers who want AI agents to do real marketing work rather than produce generic copy. Its strength is the shared product context, which means every skill starts from your positioning instead of a blank chat, and the breadth, with 52 skills from CRO to churn. The trade-offs are that it assumes some comfort with a terminal, the output still needs a marketer’s judgement, and the library changes quickly (version 2.0 renamed 17 skills). Because it costs nothing, the only real investment is an afternoon. Install three skills, set your context, and judge it on one landing page.

Summary box (bottom of the listing)

Tool Category: AI Agent Skills & Marketing Automation
Pricing: Free (MIT licence). You pay only for the AI agent you use it with
Best For: Technical marketers, SaaS founders and agencies using Claude Code, Cursor or Codex
Key Benefit: 52 expert marketing playbooks that share one product context, so your AI agent works like a trained marketer

Listing on Digital Marketing Supermarket: digitalmarketingsupermarket.com
Visit Marketing Skills: marketing-skills.com
Category Tags: Claude Skills, Claude Code, Agent Skills, AI Marketing Agent, Cursor, OpenAI Codex, CRO, AI Copywriting, AI SEO, GEO, Open Source, Free AI Marketing Tool

This review is based on publicly available information from the Marketing Skills GitHub repository and marketing-skills.com as of 22 October 2026. Digital Marketing Supermarket is an independent directory. This review has not been sponsored or paid for by Corey Haines or Conversion Factory, and we have not tested the skills hands-on.