Knowledge RAG
Submit principleDesign Knowledge Base
Community-maintained principles reviewed before publication and retrieved as Agent design constraints.
2 published principles / 192 in library
Resource Licensingfonts / license
Webfont License and Loading Governance
Font intake is not only visual choice; it must confirm per-font licensing, delivery method, privacy constraints, CJK size, fallback, and loading performance together.
A font is both a brand asset and a runtime dependency. Agents should recommend a font only when its license is traceable, loading surface is controlled, fallback is stable, and privacy boundary is clear.95%Resource Licensingvideo / motionStock Video Hero and Background Governance
Free stock video can make heroes feel more real, but each use must confirm item license, likeness/trademark/property rights, attribution, poster, pause control, reduced motion, and mobile performance.
Background video is not moving wallpaper. It belongs in production only when it serves first-viewport signal, brand tone, or story evidence without weakening readability, accessibility, licensing, or performance.95%