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Vance IngallsandClaude Opus 4.6
4c5b8e38a1
Add two new skill reference files that address measured LLM composition failures: - fonts.md: Typography principles — banned fonts, guardrails for violations (pairing two sans-serifs, defaulting to 400/700 weight), and guidance the LLM genuinely doesn't apply without being told (register switching, tension as meaning, easing direction as emotion). Includes Google Fonts API discovery script with 7-category multi-strategy query. - motion-principles.md: Motion design principles — guardrails for same-ease and same-speed defaults, y-axis entrance monotony, and guidance for build/breathe/ resolve scene structure, hard cuts as intentional transitions, visual composition rules for video-not-web density. Both files validated against baseline evals: 3 compositions created without guidance confirmed the LLM reaches for banned fonts (Inter, Cormorant Garamond, Playfair Display, Roboto Condensed), uses power2.out on 45-72% of tweens, enters 80%+ of elements from y-axis, and pairs multiple sans-serifs. Also: - Fix validate.ts $& replacement bug (runtime source containing $& caused String.prototype.replace to re-insert the matched <script src=""> tag) - Clean up font loading guidance across skills (compiler embeds automatically) - Update house-style.md to reference fonts.md Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>