writing ·5 essays ·EN · VI

Agentic Notes

Building production AI workflows with Claude Code, and the method behind it, written down so it is repeatable.

  1. 15 Jul 2026 ·essay ·17 min read

    Loop Engineering

    How an AI Team Builds an App End-to-End. When agents build for almost nothing, the only critical path left is where you wait for a human and where the agent guesses. Loop engineering batches all the waiting to one point up front, kills every guess, and lets a team of agents run the sprint loop themselves — with the receipts behind every rule, and an honest note on the part not yet through fire.

  2. 15 Jul 2026 ·essay ·15 min read

    The Agent Gym

    Where Skill-and-Tool Training Actually Runs. The prior essay argued that building an agent IS training it. This one is the room where that training runs for real — a gym with a teacher and a courtroom. The loop, the diagnosis tree that keeps you from blaming the student first, and the discipline that stops the whole thing from lying to you. With receipts from a system that graduated.

  3. 15 Jul 2026 ·essay ·17 min read

    Bootstrap một đội AI build app

    Build-System Playbook — toàn văn để dựng lại. Bộ khởi động để một session Claude Code tự dựng một đội AI (architect · backend · frontend · tester) và build app end-to-end trong vòng lặp sprint tự trị. Bài này đăng NGUYÊN VĂN từng artifact — đọc một URL là dựng lại được cả quy trình.

  4. 24 Jun 2026 ·essay ·11 min read

    Agent-Building Is Training

    And You Hold the Key. Validate picks the starting point. To make an agent good for YOUR problem you have to train it — tool and skill are the weights, the scorer is the loss. Here is that loop, and the information-theoretic reason you (the human) are the one weight that cannot be removed.

  5. 28 May 2026 ·essay ·11 min read

    Validate AI Workflows 50x Faster

    No-Build-First Method. A tool-agnostic methodology to separate experimentation runtime from production runtime — saving weeks of engineering before writing a single line of production code.