Set up HOL Guard for Claude Code

HOL Guard is a separate open-source local runtime package. This plugin is the Claude Code discovery and setup companion; the actual security boundary is installed and maintained by the hol-guard CLI.

Follow this sequence exactly:

1. Check whether HOL Guard is already available without changing the machine:

   command -v hol-guard && hol-guard --version
   

2. If hol-guard is missing, explain that installation changes the user's Python/pipx environment and ask for explicit approval before installing it. Do not silently substitute another package manager.

3. After approval, install from PyPI with the documented command:

   pipx install hol-guard