Design principles are not mood board decoration. They are decision-making infrastructure. Without them, product teams default to ad-hoc, inconsistent output that users experience as vague or dull. With AI now generating passable design and code in minutes, the question of what to build and what values it should embody becomes more critical, not less.

The article anchors its argument in concrete references. Dieter Rams' 10 principles, still the benchmark after decades at Braun, are held up as the model: no bold claims, just honest statements of intent. Ben Brignell's Principles.design catalogs 230 examples spanning hardware, language, and organizations. The piece also names real working examples worth studying: Linear's Agentic Design Principles, Heydon Pickering's Web Accessibility Principles, and design system documentation from IBM Carbon, NHS, Gov.uk, and Uber.

The most actionable section is an 8-step workshop process, drawing on work by Marcin Treder, Maria Meireles, and Better. It moves from pre-session user research through product analogies, attribute extraction, and a final reality check against existing products. The full article is worth reading for that workshop structure alone, plus the Figma and Miro templates linked at the end.

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