Context Deck

Every AI tool, on brand.

Context Deck is an agent-ready brand system.
Your single source of truth for design, voice, strategy and brand context.

Join the waitlistCheck out the demo

The problem

Every AI tool hears a different story.

You explain your brand context to Claude, then ChatGPT, then Gemini, then Cursor. Each retelling drifts a little, and you end up with a Frankenstein brand.

Your landing pages, apps, emails and social posts appear stitched together from different guesses. People can tell AI made it.

The old way

Explain it better

Every tool still hears its own version.

The new way

Explain it once

In a way agents understand.

DESIGN.md

Create a brand design system that's readable by agents.

Google published DESIGN.md, a plain markdown spec that describes a design system in a way AI agents can read: colors, type, shapes, components and the rules between them. Give an agent a DESIGN.md and you get more coherent results.

DESIGN.md

The human layer

DESIGN.md is for agents. Context Deck is for humans.

Nobody wants to hand-edit a markdown spec. Context Deck is the visual layer on top: build your system in an editor, and every agent gets the DESIGN.md, live.

The Context Deck editor, with the style guide on the left and the live DESIGN.md beside it

Build it visually

Colors, type, shapes and components in one editor, with a live preview.

Context Deck
4 tools connectedlast read get_brand_core

Live MCP connection

Claude, ChatGPT, Gemini, Cursor and any MCP tool read the same system, always current.

Context Deck · Style guide
1 proposal waiting
Claude
Cursor

Agent proposals

Agents suggest changes. Nothing ships until you approve it. Your brand, built together.

The Context Deck strategy page, with personality sliders and the live voice context beside them

Strategy and voice

Set your personality and voice once. Agents write the way you do.

Brand context cards

Audience, positioning, offers, decisions. Any context, one place.

Learn more
DESIGN.md
1# Context Deck
2
3Brand design system editor, your brand's single source of truth.
4
5## Colors
6primary:    #C80815   # Venetian Red
7surface:    #0A0A0A
8on-surface: #E8E8E8
9border:     #222222
10
11## Type
12display: Instrument Serif 48px / 1.15
13body:    Geist 16px / 1.5
14
15## Shapes
16radius: 8px
17
Paste anywhereCopying…
  • ChatGPT
  • v0
  • Lovable
  • Bolt
  • Any AI tool

DESIGN.md export

No MCP? Copy or download your DESIGN.md for any tool.

Bonus

Your brand is more than a design system.

Most teams keep brand context in a notes app, an Obsidian vault or a folder of prompts, then paste it into every agent by hand. Context Deck already does this. Add any context as a card: audience, positioning, offers, client notes. Every agent can pull it when it needs it.

Switch cards on and off to control exactly what's in context at any moment.

Context Deck's brand context cards, one card per topic your agents can read

For designers, engineers, creatives, and brand owners

Your brand decisions should compound.
Without a system, AI slop compounds instead.

Frequently asked questions

A single text file that tells AI agents how your product looks: colors, type, spacing, components, and the reasons behind them. Google published the format. Context Deck builds yours and keeps it current.

Try it yourself

The demo runs the real editor on our own brand. Change a color and watch the DESIGN.md update. No account needed.

Open the live demo