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Practical Harness Engineering for Senior Engineers at Korea’s Top Tech Companies: Claude Code in a Real-World Spring Boot Environment

This is the definitive course on Claude Code. We’ll delve into how and why Claude Code works all the way to the end, teach you how to apply the components of harness engineering yourself, and even dissect publicly available production code firsthand. Take the know-how of a developer with 10+ years of industry experience and become a key talent in the age of AI agents.

(5.0) 43 reviews

553 learners

Level Intermediate

Course period Unlimited

Java
Java
Spring
Spring
software-design
software-design
AI
AI
AI Agent
AI Agent
Java
Java
Spring
Spring
software-design
software-design
AI
AI
AI Agent
AI Agent

[Lecture Update] Monitoring Claude Code Usage with OpenTelemetry

Hello! The "Mastering Claude Code" course has been updated with the Advanced Feedback section on Telemetry Monitoring!

This section covers the essentials for transitioning Claude Code from a personal tool to one used by a team or organization. This falls under the domain of observability, which involves transforming the logs streaming on your personal screen into queryable data for the organization.

스크린샷 2026-07-28 오전 12.36.06.png

This update includes the following three lectures.

  • OTel Concepts and Ecosystem


  • Enable Claude Code Telemetry

  • Collection Stack Hands-on - Setting Up otel-collector, Prometheus, Grafana, and Loki with Docker Compose

스크린샷 2026-07-28 오전 12.37.50.png

The final lecture includes the hands-on materials. It contains the docker-compose.yml and configuration files for the collector, Prometheus, Loki, and Grafana, so all four containers spin up with just a single command. You can use it to verify the overall setup on your local machine before integrating it into your company's environment. All you need is Docker Desktop running.

Give it a try, and when adopting it for your team, use it to help establish criteria for how much data to collect :)

Then I'll be cheering you on in your learning journey!

I'll be back next time with more useful updates.

Thank you.

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