Freeze Impure Seams, Then Change One Injection Point
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Messy modules fail refactors at hidden I/O, not syntax. Characterization must pin those impure seams first, always. Only then apply the smallest injection-point change in production. Naive rewrites collapse because time, paths, and environment leak. Those leaks stay invisible inside a typical unit-…
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- 2026-09-06 11:05 · DEV Community — AI
Freeze Impure Seams, Then Change One Injection Point