From spaghetti to main bus: refactoring an AI agent orchestrator with Elm

The Factory Must Grow (Part II): From Spaghetti AI Agent Orchestrator to a Main Bustl;dr: In Part I, I built the factory: an orchestration system that runs AI agents like workers on a production line. Part II tears the original system down and rebuilds it from first principles.Mario HayashiApr 28, 2026ShareThis post is about The Big Rejig and mistakes that burned millions of Claude tokens. Part I post here.AI agent orchestration: From spaghetti architecture to clean, predictable Elm architectureThe First Factory WorkedFor those who’ve played the game, your first Factorio factory works. Iron moves on the conveyor belts, copper is delivered to assemblers and circuit boards come out on the other side.

…

Excerpt limited to ~120 words for fair-use compliance. The full article is at Mariohayashi.