Skip to main content

When Agents Diverge

A week ago, I wrote about Koda reaching the point where it could improve itself. I called engineers "context curators" and said the value of the engineer had been relocated. I believed that. I still b…

2026-03-10 · 9 min · Lijun Zhu

Koda, Self-Improvement, and the Value of Engineers

Today, something quietly remarkable happened. I built Koda — a full AI coding agent in Rust — in a single day, using Code Puppy and Claude Code. Thirty commits. Release v0.1.0 and v0.1.1. A native Gem…

2026-03-02 · 7 min · Lijun Zhu

The Compressed Hierarchy: Engineering Management in the AI Era

I recently watched Gokul Rajaram's interview on how Product Managers must evolve in the AI era. His thesis resonated — but as an engineering leader, I kept thinking: this isn't just a PM story. The sa…

2026-02-23 · 6 min · Lijun Zhu

Porting Guessit to Rust: How 1300 Tests Turned GenAI into an Optimizer

Python's guessit is one of those libraries that looks simple from the outside and is terrifying on the inside. You hand it a media filename like The.Walking.Dead.S05E03.720p.BluRay.x264-DEMAND.mkv and…

2026-02-23 · 12 min · Lijun Zhu

The Friction of Meaning: Why AI Won't Replace Scientists

"When a scientist publishes a paper, their private, inner conception of the idea dies. It is handed over to the community to be debated, interpreted, and integrated into culture. AI outputs arrive al…

2026-02-23 · 30 min · Lijun Zhu