Part II · Compounding harness · 05

Brand file / DESIGN.md

The agent stops guessing your colors, type, and voice.

25 min

Why this is Part II

Brand as contract

Extract / write

DESIGN.md

Save path

brand/

Regenerate

One slide only

Score

Fix system, not only slide

Without a brand file, every deck is a new personality. DESIGN.md (or equivalent brand markdown) is the small contract the agent must load before layout. Open Design is built around design systems; even a one-page markdown file is enough to start.

Minimum DESIGN.md (copy and fill)

# DESIGN.md: [Brand / project name]

## Color
- bg: #...
- surface: #...
- text: #...
- accent: #...
- Rules: accent only for CTAs and key numbers; never for body text.

## Type
- Display: [family]: titles
- Body: [family]: paragraphs
- Mono: [family]: code / labels
- Sizes: H1 / H2 / body / caption (name them; avoid random sizes)

## Logo
- Path: brand/logo.svg (or note “wordmark only”)
- Clear space: [...]
- Do not stretch; do not recolor off-palette.

## Voice
Do:
- [...]
- [...]
- [...]
Don't:
- hype adjectives (revolutionary, seamless, leverage)
- [...]
- [...]

## Slide components
- Title slide: [layout rules]
- Body slide: max [N] bullets; prefer one diagram
- Quote slide: [rules]

## Forbidden
- Stock-photo clichés you hate: [...]
- Fonts not listed above

Extract or write

Steps · tap to check0/5

If the agent ignores DESIGN.md, your prompt did not force the path. Quote the absolute path and “refuse styles not in the file.”

Open Design ↗

Proof of completion

brand/DESIGN.md exists; you regenerated one slide with only “follow DESIGN.md”; changelog notes what matched and what still failed.

Proof · this device0/1

Stored on this device only, not sent anywhere.

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