Design Constraint Validator

Overview

Design Constraint Validator is a Model Context Protocol (MCP) server: Validate design tokens for accessibility, scales, and design-system constraint consistency. Because it speaks the Model Context Protocol, AI assistants can use Design Constraint Validator as a set of callable tools instead of you copy-pasting between apps.

It runs locally: the npm package design-constraint-validator speaks MCP over stdio on your machine. No credentials are required — it works out of the box. The current release is v2.3.0, published under the MIT license, with source at CseperkePapp/design-constraint-validator on GitHub.

On mcp.site, Design Constraint Validator sits in the Design category. Any MCP client can use it — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed among them — via the install snippets below. If you maintain Design Constraint Validator for CseperkePapp, claim this listing to verify ownership, earn the Verified badge, and keep the details current.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "design_constraint_validator": {
      "command": "npx",
      "args": [
        "-y",
        "design-constraint-validator"
      ]
    }
  }
}