Stop prompting. Start building.

Claude Cowork is the most powerful co-writing tool ever built. This is how you use it.

A living platform of custom-built AI co-writing tools for Claude Cowork. Built from years of real production work — ghostwriting, automated publishing, and running a full business through Claude. Your voice. Your context. No code.

Plugins Skills Voice Profiles Connectors Onboarding Community
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The full Co-Writer System in Claude Cowork
Guided Setup

Your complete system, built through conversation.

The setup skill interviews you about your work, your audience, your goals — then builds your entire system automatically. CLAUDE.md, workspace folders, everything configured. No blank-page anxiety. No technical setup. Just answer the questions.

The setup skill interview running in Claude Cowork
System File (CLAUDE.md)

Your AI’s memory. Contains your profile, voice rules, content strategy, and operational context. Generated from your interview answers.

Workspace Structure

Organized folders for content pipelines, drafts, assets, and references. Built to match your actual workflow, not a generic template.

Platform Connections

Connect your YouTube, Substack, and other accounts so Claude can pull live data and publish directly from your workspace.

Plugin Marketplace

Exclusive Cowork plugins. 80+ skills and growing.

Each plugin contains full workflows and multiple multi-step skills — not single prompts. They read your system file and voice profile automatically. One-click install into Cowork. All future plugins and updates included with your membership.

Plugin marketplace showing available plugins in Claude Cowork
YouTube
Script, Description, Titles
Substack
Case Study, Contrarian, Curation, How-to Guide, Launch Announcement, Listicle, Mistakes, Reasons Why, Story Lesson, Substack Note, Thought Leadership, Tips, Welcome Sequence
LinkedIn
Post, Calendar, Profile, Ideator
Blog
How-to Article, Long-form Article, SEO Optimizer
Landing Page
Sales Page, Opt-in Page, Product Page, Build Page
Podcast
Episode Description, Episode Outline, Show Notes
Course
Module Outline, Assignment, Lesson Script
Launch
Launch Plan, Positioning, Lead Magnet, Launch Sequence, Sales Sequence, Nurture Sequence
Ebook
Ebook Ideator, Lead Magnet, Write Ebook, Compile Ebook
Research
Deep Research, Competitive Analysis, Audience Research, Company Research, Content Research Brief, Industry Briefing, Source Synthesis, Trend Analysis
Voice
Voice Create, Voice Audit, Voice Update
Setup
Co-Writer Setup, Co-Writer Audit, Co-Writer Update
AEO
AEO Research, AEO Map, AEO Content, AEO FAQ, AEO Audit, AEO Schema

New plugins added regularly. Every future update included.

Voice System

Your voice. Every output. Automatically.

The voice plugin captures how you actually write — your sentence rhythm, vocabulary, the things you’d never say. It builds a profile that Claude loads before any writing task. No more generic AI output.

Personal

Your voice

Capture how you actually write. Your rhythms, your vocabulary, the phrases that make your content unmistakably yours.

Client

Client voice

Ghostwrite for anyone. Build a separate voice profile for each client so every piece sounds like them, not you.

Inspired

Inspired voice

Blend styles you admire. Analyze writers, creators, or brands — then create a voice profile informed by their approach.

Voice creation skill running in Claude Cowork
The voice skill runs on every output automatically. You don’t tell Claude to apply it. It just does.
Live Connectors

Then take it further with live connectors.

The system file, plugins, and voice profile are enough to transform how you write and market. But I take it a step further. Claude Cowork includes some official and external connectors — but there are many more that give your co-writer increased abilities. Members get exclusive custom-built connectors that pull live data from your platforms, manage subscribers, research the web, and scrape content — all inside the conversation.

Custom connectors dashboard showing YouTube, Substack, Perplexity, and Kit connected
YouTube

Channel stats, video search, comments, playlist management

Substack

Post analytics, email stats, subscriber growth, revenue

Kit
Kit

Broadcasts, sequences, subscribers, tags, email stats

Perplexity
Perplexity

Web search, deep research, citation-backed answers

Firecrawl
Firecrawl

Web scraping, site crawling, structured data extraction

Zulip
Zulip

Send and read messages, channels, topics

Discord

Channels, messages, threads, pins, members

Gemini
Gemini Image

AI image generation and editing via Google Gemini

WordPress
WordPress

Publish posts, upload media, manage categories and tags

You bring your own API keys. We host the connectors. Members can request new connectors and plugins for their own roles and workflows — if it benefits the community, I’ll build it.

Who It's For

Not just for your content. This is infrastructure you can build on.

Creators use it for their own brand. Agencies use it for clients. Startups use it instead of hiring.

Creator

Your personal brand

YouTube scripts, newsletters, social posts, course materials — all in your voice, all from one system.

Agency / Ghostwriter

Client content at scale

Build a separate voice profile and workspace for each client. Run multiple brands from one system.

Startup

Marketing team of one

Blog posts, landing pages, launch sequences, investor updates — without hiring a content team.

Executive / Consultant

Thought leadership

LinkedIn articles, conference talks, email campaigns — built from your expertise, in your voice.

Is This For You

An honest look.

This is for you if…

  • You want to build real AI systems, not collect prompts
  • You write content regularly and want to 10x your output
  • You’re comfortable organizing files and folders (no code)
  • You want a system that compounds — getting better the more you use it
  • You’re ready to invest in infrastructure, not quick fixes

Not for you if…

  • You want a magic button that writes everything for you
  • You’re looking for a prompt library or template pack
  • You don’t want to learn how the system works
  • You expect finished content with zero editing
  • You’re not willing to invest time in setup
What You Get

Everything included. Lifetime.

Bonus

Lifetime Substack paid access.

Every Co-Writer System member gets lifetime access to Alex’s paid Substack — deep-dives on workflows, new plugin announcements, advanced techniques, and behind-the-scenes of how this system powers a real business. ~$200/year value, included forever.

Alex McFarland
Alex McFarland
Creator & Solo Operator

I run my entire business through Claude — content, publishing, ghostwriting, marketing, product. No employees, no other AI tools. Just me and this system. Everything in the Co-Writer System is built from what I actually use every day.

Pricing

One-time. Lifetime.

$1,497
or 3 payments of $525
  • 13 plugins with 80+ skills
  • 9 live connectors
  • Voice profile system
  • Guided setup skill
  • Video onboarding & walkthroughs
  • Discord community
  • Lifetime Substack paid access
  • Every future update — forever
Enrollment Closed — Join Waitlist

Get notified when enrollment opens.

FAQ

Common questions.

No. You’re organizing folders and editing markdown files — not writing code. The setup skill guides you through everything step by step. If you can create a folder and type in a text file, you have all the technical skills you need.
Yes. The Co-Writer System runs on Claude Cowork, which requires a Claude Pro ($20/mo) or Max subscription from Anthropic. The system itself is a one-time purchase — your Claude subscription is separate.
Absolutely. The voice skill captures any client’s writing style, and the setup skill builds per-client workspaces with their own CLAUDE.md. Agencies and ghostwriters use this to manage multiple brands from one system.
Yes, forever, at no extra cost. The marketplace updates through GitHub — when a new plugin drops, you pull the update and it’s yours. Every future plugin, connector, and system improvement is included in your lifetime membership.