dep-guard

Defined in hooks/hooks.json

{
  "PreToolUse": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "python3 ${CLAUDE_PLUGIN_ROOT}/hooks/dep-guard.py",
          "timeout": 30
        }
      ],
      "matcher": "Bash"
    }
  ]
}

"Blocks npm installs during Bash tool calls via PreToolUse hook with 'Bash' matcher. Executes bash npm-install-guard.sh script for security without file writes."