design-distill — references → design system → Claude Design

Turn "I like the look of these sites" into a measured, dual-mode design system plus a diff-ready Claude Design brief — without ever inventing a colour or font.

The one rule

Measured, not inferred. Never describe a reference's palette or type from what a screenshot looks like. Extract the computed styles with a headless browser and report the hex/font you measured. The moodboard method's "describe only what you see" constraint is enforced by measurement, not by the model's eye. A palette value with no getComputedStyle provenance is a bug, not a description.