https://blog.chuanxilu.net/en/tags/architectural-evolution/Recent content in Architectural Evolution on Chuanxilu for Skilled Homo sapiensHugoen-USThu, 21 May 2026 11:00:00 +0800https://blog.chuanxilu.net/en/posts/2026/05/tdd-pipeline-phase7-invisible-gap/Thu, 21 May 2026 11:00:00 +0800https://blog.chuanxilu.net/en/posts/2026/05/tdd-pipeline-phase7-invisible-gap/Phase 6 drills every bug to root cause. But it doesn't scan for shared patterns across bugs, unchecked component gaps, or execution order flaws. That's Phase 7's job. In small systems it catches more bugs. In large systems, the same findings point to architectural evolution. Phase 7 doesn't make architecture decisions — it provides the scarcest input for them: evidence-based problem localization.