<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Koji Kawamura — Writing</title><description>I write about AI harness engineering — the runtime, observability, and ops that make agents work in production.</description><link>https://kojikawamura.com/</link><item><title>AI Harness Engineering: Why the Wrapper Matters More Than the Model</title><link>https://kojikawamura.com/posts/ai-harness-engineering-intro/</link><guid isPermaLink="true">https://kojikawamura.com/posts/ai-harness-engineering-intro/</guid><description>In 2026, the model is becoming a commodity and the harness is becoming the moat. Here is why I think harness engineering deserves its own discipline.</description><pubDate>Thu, 30 Apr 2026 00:00:00 GMT</pubDate></item></channel></rss>