Work with Apple Contacts synced to ~/Documents/alto-index/contacts/.
If $ARGUMENTS is provided, search for that contact by name using Glob and Grep. Show their full details: phone numbers, emails, addresses, organization, birthday, notes.
If no arguments, show a count of total contacts and list a few recent ones.
Always include the addressbook:// deep link from the link frontmatter field so the user can open the contact in the native app.