50% Compliance, Not 0%: How a Logging Spike Almost Triggered the Wrong Architecture Rewrite

Dev.to AI
Generative AI AI Hardware

TL;DR: I thought my prompt augmentation track was completely broken (compliance=0%) and almost spent 27 hours rewriting plan-and-execute. Turns out the 0% was a regex bug - real value was 50%. 7 + 4 figures (hero / decision matrix quadrantChart / 7-version timeline / data delta tables). Full version (with mermaid quadrantChart + reproducible spike commands): Project repo (MIT, ⭐ welcome): LLM engineering + spike decision methodology + Chrome GPU deadlock diagnosis + regex false-negative lessons. Might save you 27h.