Every AI model learned from the same templates. That's why your AI-generated landing page looks like everyone else's. I've been measuring this. Ran hundreds of generations through GPT-5.4, Claude, GLM 3.6 and other models across 15 niches. Without design guidance: 30% use Inter as the primary font. 81% are card grids. 78% have low-contrast text. Average of 13 detectable design anti-patterns per page. I've been building Impeccable, an open-source toolkit that teaches AI coding tools real design and detects anti-patterns, and I just shipped v2.0 (link in comments). Here's what's new: - Built an eval harness and found the core skill wasn't improving color and typography diversity the way I expected. Rewrote the detection logic and pushed both significantly further. After the changes: 13 anti-patterns per page drops to 2. - Visual mode & detection engine: 24 rules across typography, color, layout, and motion. Run from the CLI (npx impeccable detect), inside /critique, or with the new Chrome extension. - Chrome extension (just went live): Open DevTools on any page, overlays highlight issues automatically. Copy any finding, paste it into your AI, it has all the context to fix it. - New commands: /shape runs a design discovery interview before any code gets written. /impeccable craft chains that into the full build flow. Works with 11 AI tools. Runs locally. Open source, free. If you're designing with AI today - what's your workflow to get to impeccable design?
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