Claude Code Mastery

Claude Code Mastery is a self-paced online intermediate-level course from Petronella Technology Group, Inc. in the AI & Automation catalog. It takes about 10 hours, costs $79 per learner, and ends with a certificate of completion.

Context engineering, MCP servers, subagents, skills & plugins, and advanced production patterns. Build like the pros build.

⏲ 10 hours★ intermediate➤ AI & Automation

Pricing

From $79

Lifetime access. Certificate of completion. Quizzes and assessments.

Enroll Now

Your Instructor

Craig Petronella

CMMC-RP, CCNA, CWNE, DFE #604180

Founder of Petronella Technology Group (founded 2002, BBB A+ since 2003). Team is fully CMMC-RP certified. CMMC-AB Registered Provider Organization #1449.

What you will learn

  • Design production-grade CLAUDE.md files
  • Configure and build custom MCP servers
  • Use subagents for parallel execution
  • Create custom skills and plugins
  • Implement headless automation
  • Build CI/CD with Claude Code
  • Optimize token usage at scale

Course outline: 5 modules, 14 lessons

Context Engineering

  • What Is Context Engineering
  • Building a Production CLAUDE.md
  • Memory and Persistent Knowledge

MCP Servers & Integrations

  • What Are MCP Servers?
  • Configuring MCP Servers
  • Building a Custom MCP Server

Subagents & Parallel Execution

  • Understanding Subagents
  • Practical Subagent Workflows

Skills, Plugins & Ecosystem

  • The Skills System
  • Plugins and Extensions
  • Creating Custom Skills

Advanced Patterns

  • Headless Mode and Automation
  • Fleet Operations
  • Cost Optimization

Frequently Asked Questions

What will I learn in Claude Code Mastery?

You will learn to design production-grade CLAUDE.md files, configure and build custom MCP servers, and use subagents for parallel execution. The course also covers creating custom skills and plugins, implementing headless automation, and optimizing token usage at scale.

Who is Claude Code Mastery for?

This is an intermediate-level AI and Automation course for developers and teams who already know the basics of Claude Code and want to reach expert proficiency. It targets people running AI agents in production environments who want the techniques used by teams operating at scale.

How long is Claude Code Mastery and what level is it?

The course is intermediate level and runs about 10 hours of self-paced online content. You can complete it on your own schedule and track your progress as you go.

Is Claude Code Mastery free or paid?

Claude Code Mastery is a paid course priced at $79. It is covered by our 30-day money-back guarantee: request a refund within 30 days of purchase if you have completed less than 25% of the course, and we refund the full price. If a technical issue on our side prevents access, contact support@petronellatech.com and we will fix it or refund you.

What advanced topics does Claude Code Mastery cover?

The curriculum is organized into five modules: Context Engineering, MCP Servers and Integrations, Subagents and Parallel Execution, Skills, Plugins and Ecosystem, and Advanced Patterns. It treats context engineering as the single most important skill in agentic coding and covers building CI/CD pipelines with Claude Code. A completion certificate is issued when you finish.

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