brandrail

Keep AI-generated UI on-brand: an MCP server and CLI that give Claude Code, Cursor, Copilot and Codex your design system, and check code and live pages against it.

Installation

MCP client config (paste into mcp.json)

{
  "mcpServers": {
    "npm-brandrail": {
      "command": "npx",
      "args": [
        "brandrail"
      ]
    }
  }
}

Agent install prompt

Copy and paste into Cursor / Claude / other agents to install this MCP for you

Please read this MCP repository and install it into my current environment:
https://www.npmjs.com/package/brandrail

Known working client config (can write into mcp.json):
{
  "mcpServers": {
    "npm-brandrail": {
      "command": "npx",
      "args": [
        "brandrail"
      ]
    }
  }
}

Please: 1) check README for deps and env vars; 2) write config for my client; 3) if secrets are missing, tell me what to fill — do not invent values.

GitHub

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