impeccable-25-rule-deterministic-frontend-scanner

The impeccable repo (github.com/pbakaus/impeccable) contains a 3,590-line JS engine with 25 deterministic anti-pattern rules: 13 AI slop tells (Inter/default fonts, purple gradients, glassmorphism, pill badges, gradient text, centered-everything, emoji in UI) and 12 general quality rules (contrast, spacing, shadow misuse, z-index chaos). Wiring as PostToolUse hook on Write/Edit to .html/.css/.tsx/.jsx/.svelte/.astro files provides zero-LLM-cost quality scanning. Command: npx impeccable detect --json <file>.