What does Design Prover actually do?

It is a structured reasoning capability that forces your AI agent to prove it has made intentional design decisions regarding hierarchy, layout, whitespace, typography, and color before it writes any code.

Will this change how my AI writes CSS?

It doesn't change the syntax, but it changes the logic. It forces the agent to move away from default Tailwind values and generic card grids toward specific, intentional design choices.

Which AI clients can use this MCP?

You can use this with any MCP-compatible client, including Claude, Cursor, and Windsurf.

Why does it reject my prompts?

It rejects prompts that rely on 'AI defaults' like uniform spacing, flat hierarchy, or the standard hero-plus-three-cards layout. It requires specific, measurable design decisions.

Do I need to be a designer to use this?

No, but you need to be able to tell your agent to be more specific. The capability provides the framework to help your agent think like a designer.

Does Design Prover generate HTML or CSS?

No. Design Prover generates zero code. It forces the agent to make five concrete DESIGN DECISIONS. hierarchy, layout, whitespace, typography, color. before writing a single line of HTML. The decisions then guide the code. The capability catches AI patterns (card grids, uniform spacing, safe palette) and rejects until the design is intentional.

Why does it reject card grids?

Three cards in a row is the #1 fingerprint of AI-generated design. It's the default every model reaches for because it's safe and symmetrical. Professional design uses spatial tension: asymmetric columns where one is 2x wider, elements that overlap or break containers, full-bleed images next to narrow text columns, alternating between dense data sections and generous white space. Card grids are assembly, not design.

What does a 3:1 hierarchy ratio mean?

If your body text is 16px, your focal element should be at least 48px (3x) to create real visual dominance. AI agents typically use 32px headlines with 16px body. a 2:1 ratio that creates no drama. Professional design uses 5:1+ ratios: 72px display headlines, 120px metrics, oversized imagery. The bigger the ratio, the clearer the reading path.

An astronaut overseeing a futuristic data hub

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Connect Design Prover to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Force your AI agent to make real design decisions instead of using templates.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 1 capability

We ship only the actions that matter.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through Design Prover.

01
Prove design
This capability forces your agent to justify its frontend design decisions before it writes any code. It requires the agent to define a dominant focal point, an asymmetric layout, intentional whitespace, specific typographic scales, and a purposeful color palette.

Real work

What teams actually run

Landing Page Prototyping

Force an agent to build a unique brand identity for a new SaaS instead of a generic template.

Design System Validation

Check if an agent's proposed layout actually follows hierarchy and spacing rules.

Creative Direction

Use the decision pivots to guide an agent toward an editorial or cyberpunk aesthetic.

Code Quality Control

Prevent the generation of useless, repetitive CSS by requiring specific design justifications.

Automate a task

Put Design Prover to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Design Prover works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put Design Prover to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

872ms average. Fast in production.

Design Prover is checked daily against the live service.

Daily averagePeak 1079ms

Oct 3Today

Fastest day: 695ms
Slowest day: 1079ms
14-day trend: Stable+2%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Design Prover, so you can see the experience inside your AI.

It does not authenticate your account with Design Prover. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Design Prover Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_PeQ4D4927Jeny0kAawnz5h0U5bgjxG8rMJspLTyL/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Design Prover capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "design-prover-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_PeQ4D4927Jeny0kAawnz5h0U5bgjxG8rMJspLTyL/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Design Prover in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Design Prover owners hand off.

This MCP is for people who are tired of AI-generated websites that all look exactly the same.

01
Frontend Developers
Use it to ensure your AI coding agent doesn't output generic, uninspired Tailwind templates.
02
UI/UX Designers
Use it to bridge the gap between a design concept and an agent's implementation.
03
Product Managers
Use it to enforce higher visual standards when prompting agents to build prototypes.

FAQ

Questions Design Prover owners ask.

01
What does Design Prover actually do?
It is a structured reasoning capability that forces your AI agent to prove it has made intentional design decisions regarding hierarchy, layout, whitespace, typography, and color before it writes any code.
02
Will this change how my AI writes CSS?
It doesn't change the syntax, but it changes the logic. It forces the agent to move away from default Tailwind values and generic card grids toward specific, intentional design choices.
03
Which AI clients can use this MCP?
You can use this with any MCP-compatible client, including Claude, Cursor, and Windsurf.
04
Why does it reject my prompts?
It rejects prompts that rely on 'AI defaults' like uniform spacing, flat hierarchy, or the standard hero-plus-three-cards layout. It requires specific, measurable design decisions.
05
Do I need to be a designer to use this?
No, but you need to be able to tell your agent to be more specific. The capability provides the framework to help your agent think like a designer.
06
Does Design Prover generate HTML or CSS?
No. Design Prover generates zero code. It forces the agent to make five concrete DESIGN DECISIONS. hierarchy, layout, whitespace, typography, color. before writing a single line of HTML. The decisions then guide the code. The capability catches AI patterns (card grids, uniform spacing, safe palette) and rejects until the design is intentional.
07
Why does it reject card grids?
Three cards in a row is the #1 fingerprint of AI-generated design. It's the default every model reaches for because it's safe and symmetrical. Professional design uses spatial tension: asymmetric columns where one is 2x wider, elements that overlap or break containers, full-bleed images next to narrow text columns, alternating between dense data sections and generous white space. Card grids are assembly, not design.
08
What does a 3:1 hierarchy ratio mean?
If your body text is 16px, your focal element should be at least 48px (3x) to create real visual dominance. AI agents typically use 32px headlines with 16px body. a 2:1 ratio that creates no drama. Professional design uses 5:1+ ratios: 72px display headlines, 120px metrics, oversized imagery. The bigger the ratio, the clearer the reading path.

Explore

More in Productivity

Connect Design Prover to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01

Prove design

What teams actually run

Landing Page Prototyping

Design System Validation

Creative Direction

Code Quality Control

Building your own app? The connector is yours to use.

Design Prover Connector

Claude Desktop

Frontend Developers

UI/UX Designers

Product Managers

What does Design Prover actually do?

Will this change how my AI writes CSS?

Which AI clients can use this MCP?

Why does it reject my prompts?

Do I need to be a designer to use this?

Does Design Prover generate HTML or CSS?

Why does it reject card grids?

What does a 3:1 hierarchy ratio mean?

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