THE SKILL UNSLOP-UI EXISTS BECAUSE EVERYONE CAN SPOT AN AI-GENERATED WEBSITE WITHIN TWO SECONDS. Claude defaults to the same patterns every time, so every vibe-coded project starts blending into the same look. This skill breaks that pattern at the source. Checks are weighted using an analysis of 3.2 million Reddit posts across 47 AI and SaaS subreddits - real data on what actually reads as "AI built." Build mode forces a real brief, a reference, and a chosen color and font before Claude can start, so it never falls back to its median defaults. Audit mode scans existing code and flags issues by exact file and line, then scores the project's overall vibe. CI gating catches regressions automatically, and intentional choices can be marked so they stop getting flagged. The real problem was never that a site looked AI built. It's that every AI-built site looks the same.(CyrilXBT)