📩 Your coupon has arrived
Recipient: You who have had a course you wanted to take
Sent by: Maso Campus
Benefit: 25% off all courses instantly (automatically applied without entering anything separately)
Valid through: November 9 (Mon)
Where to use: All Inflearn Masocampus courses (some courses excluded)
That course you’ve only added to your wishlist and kept putting off, thinking, “I’ll take it later,”
A 25% discount is here!
Keep deliberating to a minimum—start right now 😊
> [🎟️ View courses with a 25% discount]
✅ Recommended for those who...
Those who have been putting off purchasing the course, waiting for a discount
Those who want to firmly build their AI skills before the end of this year
Those who want to get ahead by preparing for next year’s work in advance
There are only two months left in the year.
So you won’t be saying, "I should have started then," at the end of the year,
Be sure to start that course you've been putting off this time ✨
[👉 View all courses at Masocampus]
⏰Early-bird 30% discount available (~November 12)
*The course below is currently available at the Early Bird–only 30% discounted price.
◾Claude·ChatGPT AI skills tailored to your work
◾Vibe coding you can confidently entrust to AI: Git version control that lets you undo mistakes with a single sentence◾Practical Harness Engineering Starting with Codex: Development You Can Entrust to AI Agents
⚠️ Discount Exclusion Notice
The course below is not eligible for this event discount due to the discount cooldown period.
Practical AI Harness Engineering with Hermes, Codex, and LLM Wiki
Build Your Own Service with Google Antigravity Vibe Coding: From Implementation to Deployment with AI, Without Coding
Create a Claude AI marketer that remembers our brand: 5 marketing skills, from copywriting to AI search
Claude Code Workflow Automation for Non-Developers — Turn Your Tasks into Skills and Run Them with a Single Line
Codex: A practical guide to using a work AI agent without coding—delegate your tasks with words and complete them in files
Hello, this is Maso Campus.
The ‘thing’ that people who use AI well are already doing,
It is a mechanism that makes AI work the same way.
Without repeated explanations or revisions, you can set it up once and trust it to handle the work.
With these three new courses, things will change like this.
📋 Copying and pasting prompts every time → the Skill you create once produces the same result from a single-line request
💾 Even working code gets broken → a save point that restores it with one sentence
✅ Just trusting “It’s complete” → a harness for directly verifying it against rules and conditions
Up to 30% OFF on 3 new courses ⏱: Until November 12
📌Course 1. Claude·ChatGPT AI skills tailored to your work
Claude·ChatGPT AI Skills that keep you from rewriting yesterday’s prompt from scratch today!
Turn meeting minutes, reports, transaction statements, and proposal PPTs into Skills that let you reuse repetitive tasks.
✅ Organize repetitive tasks into a reusable structure with a five-part design: name, trigger, input, procedure, and output
✅ Reproduce the same format with a single-line request using Skills for weekly reports, transaction statements, and proposal PPTs
✅ Register Skills created in Claude in ChatGPT and reuse them according to the same work standards
✅ Connect multiple Skills—from research to reports and PPTs—and share them with your team
Discover your own work system that you can keep using again and again—without coding.
> Enroll at the early-bird discounted price
📌Course 2. Vibe Coding You Can Entrust to AI: Git Version Control That Lets You Restore Everything with One Sentence Even If You Mess It Up
Git with AI, so you don’t break code that was working perfectly while trying to make just a small change!
Complete saving, backup, and recovery by telling the AI what to do in plain language—without Git commands.
✅ “Start version control” creates a repository in one sentence and records it with an AI-generated summary message
✅ Leave a commit for every meaningful change so you can return to that point at any time
✅ Code that remains safe even if your laptop breaks, thanks to GitHub remote backups
✅ Test AI-generated changes on a branch and merge them if successful, while keeping the original intact.
Instead of final_final_really_final folders, discover a save point you can return to in a single line.
>Enroll at the early-bird discount
📌Lecture 3. Practical Harness Engineering with Codex: Development You Can Confidently Delegate to AI Agents
Harness engineering that directly evaluates results instead of simply trusting the words “It’s done”!
Add rules, validation, and enforcement mechanisms to Codex CLI so you can delegate tasks with confidence.
✅ Reclassify whether my instruction is a request or an enforcement using the 4-pattern self-diagnosis for failures
✅ Leave verifiable rules in AGENTS.md to reduce recurring result variation
✅ Automatically block dangerous commands before execution using sandboxes, prefix_rule, and hooks.
✅ Verify completion declarations with an independent reviewer by separating creator and evaluator sessions
Become a supervisor who can carry over a harness created once and use it as-is in your next project.
>Enroll at the early-bird discounted price
⏰ 2 days left until the early bird offer ends! Don’t miss this one-time 30% discount
Only until Friday, October 16, get it at a 30% discount!
◾AI Harness Engineering Practice with Hermes, Codex, and the LLM Wiki
