impeccable-deterministic-design-scanner-zero-token-cost
The impeccable npm package contains a 3,590-line JS detection engine with 25 deterministic rules (13 AI-slop tells + 12 general quality) that runs with zero LLM cost. Integrating it as a PostToolUse hook on Write/Edit to .html/.css/.tsx/.jsx/.svelte/.astro files gives an always-on quality gate at no token expense. This fills a gap where all existing quality assessment is LLM-based and therefore variable-cost and non-deterministic.