Living collection
Copywriting and conversion | Marketing skills for Claude Code and Codex
Marketing skills help AI agents work on audience research, landing page copy, SEO and commercial messaging. This collection compares skills and related resources for Claude Code, Codex and other agents by the task they support, the data they need and their documented compatibility.
For research, Last 30 Days gathers recent conversations, Watch analyses videos and Firecrawl extracts information from web pages. For copywriting, SEO and conversion work, Marketing Skills by Corey Haines brings specialised instructions together in one package. Each profile distinguishes agent skills from services and tools that can be connected to an agent.
Start with the job: understand your customers, prepare a landing page or review a campaign. Then compare setup, cost, sources and limitations. Resources link to a detailed review when one is available, so you can judge whether they fit your workflow.
10 resourcesOrganized by use
Copywriting and conversion
Copywriting and conversion
4 resourcesFull profiles and sources
marketingskills
Resource
50 specialized marketing instructions (CRO, SEO, ads, copywriting, analytics) that any code agent can use for free. MIT license, no API key, one command to install.
Why it belongs here. 50 specialized marketing instructions (CRO, SEO, ads, copywriting, analytics) that any code agent can use for free. MIT license, no API key, one command to install.
Its limit. Everything in English: instructions, templates, and documentation. Getting output in another language requires asking the agent explicitly.
These are text files that teach marketing to your code agent (Claude Code, Cursor, Codex). Tell it to "optimize this landing page" and instead of winging it, it applies a real CRO framework.
Compatibility and setupRequirements and agent differences
Compatibility. Claude Code, Cursor, OpenAI Codex, Windsurf, and any agent supporting the Agent Skills spec. Node.js required for installation via npx.
Real cost and licenseResource, agent and extra costs
Cost. Free. MIT license. No API key, no subscription, no usage limits. Partners (Converly, Ploy) fund development but do not influence core skill recommendations according to the project documentation.
Example and alternativeWhen it helps and what else to use
Example. Install all 50 skills with npx skills add coreyhaines31/marketingskills, fill in the product-marketing.md document with your product context, then ask the agent to audit a landing page for conversion.
Alternative. Write your own Markdown skills tailored to your workflow, or use system prompts directly in the agent without an external library.
Sources and reviewWhat is documented and what was tested
Review. Article based on official repository documentation (README, website) as of September 2026. No hands-on testing by the Marketing Ultra team.
Resource detailsEditorial profile and links
Claude Ads
Resource
The only open source resource that audits up to 12 advertising platforms with 33 skills, findings classified by confidence level, and investment-weighted scoring — all from Claude Code.
Why it belongs here. The only open source resource that audits up to 12 advertising platforms with 33 skills, findings classified by confidence level, and investment-weighted scoring — all from Claude Code.
Its limit. Requires account exports or real API access to function. Installation alone analyzes nothing, and account-level operations require connectors and manual per-platform authorization.
A free skill that reviews the health of your ad accounts (Google Ads, Meta, TikTok and more) from Claude Code. It tells you what is wrong, how confident it is, and what to prioritize. It does not touch anything without your permission.
Compatibility and setupRequirements and agent differences
Compatibility. Claude Code is the canonical environment. Codex, Gemini CLI, Cursor, Windsurf and Goose can consume the skill files where their runtime allows, but with no published functional proof outside Claude Code.
Real cost and licenseResource, agent and extra costs
Cost. Free and MIT-licensed. No subscription, no external server, no per-account fee. Indirect costs are the Claude Code subscription and tokens consumed during the audit.
Example and alternativeWhen it helps and what else to use
Example. Install with /plugin marketplace add AgriciDaniel/claude-ads, configure with /ads setup and run /ads audit google for a Google Ads audit with health score and prioritized findings.
Alternative. Manual PPC audits platform by platform, or paid SaaS tools like Optmyzr, Adalysis or Opteo (typically focused on one or two platforms).
Sources and reviewWhat is documented and what was tested
Review. Reviewed at Marketing Ultra on September 22, 2026 based on the README, official website and repository documentation. No functional test was run on live accounts.
Resource detailsEditorial profile and links
Marketing Skills de Alireza Rezvani
Resource
Organized suite of marketing skills with shared brand context and organization across 8 pods (content, SEO and AEO, local SEO, CRO, channels, growth, market intelligence, and sales), compatible with 13 coding agents.
Why it belongs here. Organized suite of marketing skills with shared brand context and organization across 8 pods (content, SEO and AEO, local SEO, CRO, channels, growth, market intelligence, and sales), compatible with 13 coding agents.
Its limit. No evidence of real marketing use. The 26,000+ stars belong to the full multidisciplinary repository, not the marketing package. The main skill is a router that does not execute work on its own.
A set of instructions that teach your coding assistant to handle marketing tasks (emails, CRO, SEO, analytics) without you having to explain everything from scratch every time. Free, open source, for Claude Code and 12 other agents.
Compatibility and setupRequirements and agent differences
Compatibility. The README declares support for 13 platforms: Claude Code, OpenAI Codex, Gemini CLI, Cursor, Aider, Windsurf, Kilo Code, OpenCode, Augment, Antigravity, Hermes Agent, Mistral Vibe, and OpenClaw. Compatibility documented in README and frontmatter, not verified with execution tests. On Windows, requires cloning with symlinks enabled (Developer Mode).
Real cost and licenseResource, agent and extra costs
Cost. Open source under MIT license. No licensing fee or subscription. The only cost is the coding agent you run it on (Claude Code, Codex, Cursor, etc.) and the time to configure the brand context.
Example and alternativeWhen it helps and what else to use
Example. In Claude Code: /plugin marketplace add alirezarezvani/claude-skills and then /plugin install marketing-skills@claude-code-skills. The router loads the index and distributes work to the specialists in each pod.
Alternative. The Corey Haines package covers similar ground with less complexity. Rezvani bets on depth and scale (more specialists, more scripts, more pods); Haines on a more direct and lightweight approach.
Sources and reviewWhat is documented and what was tested
Review basis. Reviewed from the repository README, the marketing-skills index SKILL.md, and the verified structure of the marketing-skill directory on GitHub. No hands-on execution test. Last repository activity: August 2026. Full repo stars: 26,213 as of review date (September 2026).
Resource detailsEditorial profile and links
Claude Blog
Resource
It deserves a place in the roundup because it brings the brief, research, writing, validation and technical preparation of articles for several CMSs into one suite.
Why it belongs here. It deserves a place in the roundup because it brings the brief, research, writing, validation and technical preparation of articles for several CMSs into one suite.
Its limit. Its editorial score is an internal heuristic, and its documented compatibility requires Claude Code CLI and Python 3.11+; it does not guarantee quality, rankings or citations by AI assistants.
In plain English: it is an automated editorial team inside the terminal that assigns each article to specialised tasks and checks the deliverables before showing them to you.
Compatibility and setupRequirements and agent differences
Compatibility. Documented for Claude Code CLI on macOS, Linux and Windows, with Python 3.11 or later. The dossier does not verify Codex or other agents.
Real cost and licenseResource, agent and extra costs
Cost. The repository is free and licensed under MIT. Optional APIs and services may create external costs that are not quantified in the provided documentation.
Example and alternativeWhen it helps and what else to use
Example. It can coordinate an article from strategy and briefing through to Markdown, HTML, PDF, screenshots and a review report.
Alternative. Jasper, Copy.ai and Writesonic are the stated alternatives for anyone who prefers a hosted platform.
Sources and reviewWhat is documented and what was tested
Review. The conclusion is based on the public documentation for version 2.2.0. The installation and test described were not run for this review.
Official repository ↗Official website ↗Project documentation ↗