# Foundations (/foundations)



<FoundationIndex />

## Reference and setup [#reference-and-setup]

Read [DASH](/foundations/design-system) for the design system's architecture, principles, and package setup. Use [Tone & Voice](/foundations/tone-and-voice) for product copy, developer documentation, and sales and marketing writing.

## Agent skills [#agent-skills]

Install the [DASH agent skill](/foundations/skills) for package setup, component and token choices, implementation, and interface review.