Index – Xinyun Zhang

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- 满分答卷，零分能力 — 当AI考满分却一题没做

Learning in public. Writing things down so I remember, sharing in case it helps you too.

Posts

2026-06-08The Architecture Between You and the ModelThe industry is split on AI coding tools — too expensive or too good to need humans. Both positions ignore a third option backed by data: the layer between the engineer and the API that determines whether value compounds or costs scale. Here's the evidence.2026-06-05What Compounds When You Keep ThinkingWhen thinking sustains long enough, it stops needing your voice. The work becomes evidence — and evidence speaks for itself.2026-05-29The Question Behind the QuestionEngineers solve problems. The harder skill is knowing which problem to solve — and recognizing that some decisions make entire categories of problems disappear.2026-05-22The Door Was Already OpenWhat a week of debugging taught me about resistance, reframing, and finding the entrance that was there all along 2026-05-15The Workaround and the SourceWhen working harder is a workaround for working smarter — on comfort zones, visibility, and the architecture of how you show up.2026-05-08The Systems That Watch BackWhat happens when the thinking frameworks you build start revealing things about you that you didn't intend to see.2026-05-01You Can't Build Trust DirectlyTrust, clarity, and wisdom don't get built by aiming at them. They're the residue of something else — something engineers are uniquely positioned to understand.2026-04-24When Knowing Isn't EnoughFour moments from one week that revealed the gap between knowing a principle and living it — in engineering, in thinking, and in the decisions that actually matter.2026-04-11我如何用一台笔记本和一部手机，搭建了一个会自己进化的工作系统A software engineer's personal system architecture — five layers from knowledge to mobile access, with self-improving automation in between. Written in Chinese.2026-04-11The Config File That Knows Me Better Than My MomWhat happens when an engineer starts documenting herself instead of just her systems. On self-knowledge, automation, and why a terminal message at 1am felt warmer than a phone call.

Who is Xinyun Zhang —

Computer Programmer