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Danger Zone MCP

by koinunopochi
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JavaScript
MIT License
2

Danger Zone MCP

A Model Context Protocol (MCP) server that allows executing predefined commands with safety checks.

Features

  • Execute safe commands from configuration

  • Execute dangerous commands with native macOS confirmation dialog

  • Support for pre-authorized dangerous commands (skip confirmation)

  • JSONC support (JSON with comments)

  • Multiple configuration file formats supported (.jsonc and .json)

  • Fallback to global config in ~/.claude/ if project config not found

  • TypeScript implementation

  • Works with npx for easy execution

Related MCP server: Command Executor MCP Server

Installation

npm install -g @koinunopochi/danger-zone-mcp

Or use with npx (no installation required):

npx @koinunopochi/danger-zone-mcp

Configuration

Create a configuration file in your project root or home directory:

  1. Project-specific config (highest priority):

    • <project>/.claude/.danger-zone-exec.local.jsonc (recommended for comments)

    • <project>/.claude/.danger-zone-exec.local.json

  2. Global config (fallback):

    • ~/.claude/.danger-zone-exec.jsonc (recommended for comments)

    • ~/.claude/.danger-zone-exec.json

{ // Safe commands that can be executed without confirmation "commands": [ { "name": "build_project", "description": "Build the project", "command": "npm", "args": ["run", "build"] }, { "name": "check_chrome_mcp", "description": "Check if MCP Chrome profile instances are running", "command": "ps aux | grep -E '(Google Chrome.*mcp-chrome-profile)' | grep -v grep | wc -l" } ], // Dangerous commands that require confirmation "dangerZone": [ { "name": "clean_build", "description": "Clean all build artifacts", "command": "rm -rf dist" // Will show confirmation dialog (default behavior) }, { "name": "kill_chrome_mcp", "description": "Kill all Chrome instances with MCP profile", "command": "pkill -f 'Google Chrome.*mcp-chrome-profile'", "preAuthorized": true // Skip confirmation dialog } ] }

Usage with Claude Desktop / Claude Code

Add to your Claude configuration:

{ "mcpServers": { "danger-zone": { "command": "npx", "args": ["@koinunopochi/danger-zone-mcp"] } } }

Note: When using Claude Code, the cwd is automatically set to your current project directory.

Development

# Install dependencies npm install # Build npm run build # Run in development mode npm run dev

Configuration Options

Command Properties

  • name: Tool name (used as exec_<name>)

  • description: Description shown in Claude

  • command: Shell command to execute

  • args: Optional array of default arguments

DangerZone Properties

  • name: Tool name (used as danger_<name>)

  • description: Description shown in Claude

  • command: Shell command to execute

  • preAuthorized: Skip confirmation dialog if true (optional, defaults to false)

Safety Features

  • Dangerous commands show native macOS confirmation dialog by default

  • Pre-authorized commands can skip confirmation when explicitly configured

  • Commands are sandboxed to configured list

  • Clear separation between safe and dangerous operations

One-click Deploy
A
security – no known vulnerabilities
A
license - permissive license
A
quality - confirmed to work

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