About Claude Code Masterclass
The newsletter for developers who want to master Claude Code beyond the basics.
Claude Code is changing very fast, and keeping up with the pace is daunting.
I’ve been writing about it on Medium for nearly a year, building a following of 10,000+ engineers who want to go beyond the basics.
But Medium has limits — 2 posts per day, mixed topics, and no space for the deep, practical content you need.
Most of you signed up because I promised something deeper. Advanced workflows. Production systems. The stuff that doesn’t fit in a 10-minute read.
This newsletter delivers on that promise.
Here, the focus is 100% Claude Code.
If you’re a developer who has used Claude Code but knows you’re only scratching the surface, this is the newsletter to help you build your Claude Code skills.
For the levels of mastery, you can start here with the Claude Code Masterclass Introduction.
Most developers stay at Level 1 or 2 — not because they’re not capable, but because no one shows them how the features connect.
This newsletter takes you from Level 2 to Level 5.
Newsletter Content
Claude Code education is currently chaotic — and that’s understandable since we’re learning new things as they’re being developed.
This leads to a lack of structured learning, which ultimately causes knowledge gaps.
While Medium is a good place to quickly share new features, the articles are soon forgotten as we move on to new ideas.
In this newsletter, the content is organized into three tracks:
🔵 Masterclass Series
It helps to have an organized collection of my work that can benefit learners who want to learn progressively instead of jumping from one video or tutorial to another — that’s what the Masterclass Series delivers.
These are progressive lessons that build on each other.
This is your structured path from foundation to production mastery.
Topics include: CLAUDE.md configuration, custom commands, hooks, MCP servers, subagents, background tasks, multi-agent orchestration, and enterprise deployment.
Each issue builds on the last. Start from the beginning, follow the sequence, and build towards the Claude Code Masterclass Course.
🟠 Deep Dive Series
Sometimes you want to understand a feature because it’s important for your specific use case.
The Deep Dive Series helps you learn the depth of a certain technique, feature, or trend.
When Anthropic releases new features, major updates, or new Claude usage trends, I break them down.
What it does, why it matters, and how to use it in your workflows.
Claude Code is evolving very fast, so this track keeps you current.
🟢 Quick Updates
To keep up with the quick daily and weekly changes, we need the Quick Updates —
These are short, actionable tips, such as a useful flag, config snippet, workflow trick, plugin, and such things you can read in 2 minutes and use immediately.
My Vision
This newsletter is part of the Claude Code Masterclass ecosystem:
Newsletter — Weekly insights, tutorials, and updates (you’re here)
Medium — Tutorial articles covering features as they develop → Follow me on Medium
Course — Structured, hands-on training for complete mastery (coming March-April 2026)
Community — A private space to exchange ideas and get help (coming soon)
About Me
I’m Joe. I help 100,000+ engineers master AI coding workflows.
I’ve been writing about Claude Code since it launched, documenting every feature, testing every workflow, and building production systems with it.
My Medium tutorials have helped thousands of developers get started — this newsletter takes you further.
I write two newsletters:
Claude Code Masterclass — What you’re reading now
AI Software Engineer — Broader AI tools and automation
I Test, I build, then I teach how to use these tools.
Start Here
New to Claude Code?
Claude Code Cheat Sheet — Quick reference for commands and features
My Medium tutorials — Feature-by-feature guides from the past year
Ready to go deeper?
Start with Issue #1: Claude Code Masterclass Introduction
Follow the Masterclass Series in order
Want to shape what I write? Reply to any email and tell me:
Where are you on the skill levels? (1-5)
What’s the single biggest thing you want to learn?
What’s frustrating you right now?
I read every reply.
Stay Connected
Newsletter: You’re in the right place
Medium: @joenjenga
Substack: @joenjenga
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