Lecture on Architect PARK JUN WOOhttps://www.parkjunwoo.com/lecture/Recent content in Lecture on Architect PARK JUN WOOHugoenFri, 29 May 2026 14:00:00 +0900Class 11. How to Rescue a Broken Vibe-Coded Apphttps://www.parkjunwoo.com/lecture/class-11/Thu, 28 May 2026 20:00:00 +0900https://www.parkjunwoo.com/lecture/class-11/Your vibe-coded app just broke. You don’t need to rebuild it. Diagnose it, lock it down, and step out one move at a time.Class 10. Law of Data — Agent Operable Datahttps://www.parkjunwoo.com/lecture/class-10/Sun, 24 May 2026 19:00:00 +0900https://www.parkjunwoo.com/lecture/class-10/When code is wrong, tests catch it. When data is wrong, nobody knows. Schema is the law I establish.Class 9. Automation Beyond Code — Agent Operable Systemhttps://www.parkjunwoo.com/lecture/class-09/Sun, 24 May 2026 18:00:00 +0900https://www.parkjunwoo.com/lecture/class-09/Is agent-operable code enough? Build, deploy, monitor — the structure where agents operate the entire system.Class 8. Agent Factory — Agent Operable Codebasehttps://www.parkjunwoo.com/lecture/class-08/Sun, 24 May 2026 17:00:00 +0900https://www.parkjunwoo.com/lecture/class-08/20 functions in one file → agent performance drops 30-85%. Split with filefunc, test with tsma.Class 7. Flipping Sycophancy — Balancing Prompts and Verifiershttps://www.parkjunwoo.com/lecture/class-07/Sun, 24 May 2026 16:00:00 +0900https://www.parkjunwoo.com/lecture/class-07/Give opinions and it flatters; give facts and it fixes. How to use sycophancy bias not as a bug but as an asset.Class 6. Lock When It Passes — Ratchet Pattern Principles and Bulk Applicationhttps://www.parkjunwoo.com/lecture/class-06/Sun, 24 May 2026 15:00:00 +0900https://www.parkjunwoo.com/lecture/class-06/AI declared ‘all done.’ In reality it was 40/527. Ratchet Pattern hands completion judgment to the machine.Class 5. AI with Reins — Introduction to Reins Engineeringhttps://www.parkjunwoo.com/lecture/class-05/Sun, 24 May 2026 14:00:00 +0900https://www.parkjunwoo.com/lecture/class-05/Harness engineering is a fence. Reins Engineering is a bridle. Don’t change the model — add contracts.Class 4. Decisions Outside Code — yongol and Declarative Full-Stack Controlhttps://www.parkjunwoo.com/lecture/class-04/Sun, 24 May 2026 13:00:00 +0900https://www.parkjunwoo.com/lecture/class-04/AI can’t distinguish decisions from implementation details mixed in code — that’s the root cause of drift. yongol separates decisions into 10 declarative specifications and catches contradictions across layers with 287 rules.Class 3. Apps That Don't Break — Hurl, Git, CI/CDhttps://www.parkjunwoo.com/lecture/class-03/Sun, 24 May 2026 12:00:00 +0900https://www.parkjunwoo.com/lecture/class-03/Declare API contracts with Hurl, create save points with Git, automate verification with CI/CD. When the three combine, they become a ratchet — a gear that only moves forward and never backward.Class 2. How to Distrust AI — Limits and Causes of Vibe Codinghttps://www.parkjunwoo.com/lecture/class-02/Sun, 24 May 2026 11:00:00 +0900https://www.parkjunwoo.com/lecture/class-02/Drift where AI silently alters existing features while adding new ones, 58% sycophancy bias, the math where 97% multiplied 5 times becomes 86%. Why it crumbles at 5 features.Class 1. How to Command AI — Vibe Coding Essentialshttps://www.parkjunwoo.com/lecture/class-01/Sun, 24 May 2026 10:00:00 +0900https://www.parkjunwoo.com/lecture/class-01/From installing Claude Code to managing context with CLAUDE.md. How someone who doesn’t know code can command AI.Class 0. Install Claude Code — What You're Using Might Not Be Claude Codehttps://www.parkjunwoo.com/lecture/class-00/Sun, 24 May 2026 09:00:00 +0900https://www.parkjunwoo.com/lecture/class-00/Half of what YouTube calls ‘Claude Code’ is not Claude Code. Even with the same model, a different agent produces different results. The gate to this course closes here.