Deterministic

Overview

Deterministic is an MCP server that validates IR and IR-LINT specifications, manages policy packs, and tracks drift against exports from archrad. It brings deterministic architecture validation into your AI-powered workflow, letting Claude, Cursor, VS Code, and other MCP clients call validation and policy tools directly instead of switching between separate applications.

The server runs locally via the npm package @archrad/deterministic, installed with npx -y @archrad/deterministic. It requires no authentication and speaks MCP over stdio on your machine. The latest release is v0.4.1, distributed under the Apache-2.0 license with source code at archradhq/arch-deterministic on GitHub.

Deterministic is listed in the Development category on mcp.site and works with MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain Deterministic, you can claim this listing to verify ownership, earn the Verified badge, and keep information up to date.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "deterministic": {
      "command": "npx",
      "args": [
        "-y",
        "@archrad/deterministic"
      ]
    }
  }
}