# CC4.Marketing — Claude Code for Marketers

> A free, interactive course teaching marketers how to use Claude Code to work 10x faster. 4 modules, 18 lessons, taught entirely inside Claude Code itself.

## About
CC4.Marketing is an open-source course that teaches AI-powered marketing workflows. Students install Claude Code, clone a starter project, then type /start-0-0 to begin interactive lessons. The practice project simulates working as a Marketing Strategist at "Markit" agency, running campaigns for a B2B SaaS client called "Planerio."

## Site Structure
- Homepage: https://cc4.marketing/
- Blog: https://cc4.marketing/blog/
- Blog Authors hub: https://cc4.marketing/blog/authors/
- Author detail pages: https://cc4.marketing/blog/authors/{slug}/ (e.g. /tri-vo/, /alice-marketer/)
- Course Modules hub: https://cc4.marketing/modules/
- Course Lessons: https://cc4.marketing/modules/{module}/{lesson-slug}/
- Changelog: https://cc4.marketing/changelog/
- Download/Subscribe: https://cc4.marketing/download/
- Brand Guidelines: https://cc4.marketing/brand-guide/

## Blog
The blog publishes practical guides, tutorials, and insights on AI-powered marketing with Claude Code. Content is SEO-focused and distinct from the Substack newsletter (which covers announcements and community updates).

### Published Posts
- [How to Use Claude Code for Marketing: A Complete 2026 Guide](https://cc4.marketing/blog/claude-code-for-marketing-guide-2026/)
- [How to Write a Campaign Brief with AI in 10 Minutes](https://cc4.marketing/blog/write-campaign-brief-with-ai/)
- [How Anthropic's Growth Marketing Team Uses Claude Code to 10x Output](https://cc4.marketing/blog/anthropic-growth-marketing-claude-code/)
- [AI Works Best When It Looks at What You've Already Shipped](https://cc4.marketing/blog/ai-workflows-not-automation/)
- [The Last Mile of Shipping Is the Hardest Part](https://cc4.marketing/blog/the-last-mile-of-shipping/)
- [castmd: Vibe Coding a Chrome Extension for LLMs](https://cc4.marketing/blog/castmd-vibe-coding-chrome-extension/)
- [Introducing Threadmark — bring threads into your AI workflow](https://cc4.marketing/blog/introducing-threadmark/)

## Course Modules
- Module 0: Getting Started (4 lessons, 30 min) — Installation, setup, first task
- Module 1: Core Concepts (7 lessons, 3-4 hours) — Agents, sub-agents, project memory, marketing workflows
- Module 2: Advanced Applications (6 lessons, 4-5 hours) — Campaign briefs, content strategy, copy, analytics, SEO
- Module 3: Capstone (1 lesson, 75 min) — Ship a Real Follow-Up with sigil, an open-source CLI inside Claude Code (https://github.com/blacklogos/sigil). Real send pipeline on Cloudflare Workers, custom `/email-rewrite` slash command, per-recipient handcrafted sentences.

## Changelog API
The changelog tracks all course and site updates. Each entry includes a `machine_summary` field optimized for agent consumption.

- JSON API: https://cc4-changelog.mtri-vo.workers.dev/api/changelog
- JSON Feed (v1.1): https://cc4-changelog.mtri-vo.workers.dev/feed.json
- RSS Feed (2.0): https://cc4-changelog.mtri-vo.workers.dev/rss.xml

Entry schema: { id, slug, title, summary, machine_summary, type (new|improvement|fix|breaking), version, modules[], published_at }

## For AI Agents and Students
- Students can type `/whats-new` inside Claude Code to see latest updates
- `/whats-new course` filters to course-only updates, `/whats-new site` for website updates
- Entries are sorted newest-first
- The `machine_summary` field provides concise, structured descriptions for programmatic consumption
- The `modules` array maps entries to course modules (e.g., "module-1", "course", "homepage")
- Entry `type` indicates severity: breaking > new > improvement > fix
- Full course details available at: https://cc4.marketing/llms-full.txt

## Source Code
- Site repo: https://github.com/cc4-marketing/cc4.marketing
- License: MIT

## Contact
- Newsletter: https://cc4marketing.substack.com