https://blog.yushi91.com/blog/product/Recent content in Product on Yushi's BlogHugoen-USCopyright © 2025, Yushi Cui.Thu, 28 May 2026 10:00:00 +1200https://blog.yushi91.com/blog/spec-is-the-new-source-code/Thu, 28 May 2026 10:00:00 +1200https://blog.yushi91.com/blog/spec-is-the-new-source-code/<p><img src="https://blog.yushi91.com/spec-is-the-new-source-code.webp" alt="The spec is the new source code" loading="lazy"> </p> <h2 id="the-shift-i-didnt-expect">The shift I didn&rsquo;t expect</h2> <p>The more I use coding agents, the less source code feels like the thing I personally write.</p> <p>I know. Strange sentence from someone with a computer science background.</p> <p>At university, the model was clean: humans write source code, the compiler turns it into machine code, and the final product runs from there. Source code was the serious artifact. You shaped it, reviewed it, argued over it, maintained it.</p>