Working With Calendar

Manages a USER's connected Google Calendar or Outlook calendar via `agent connection tool-exec`. Use when the user delegates calendar work to you on THEIR account — checking their availability, scheduling meetings on their schedule, accepting/declining invites for them, coordinating attendees across timezones, or auditing their calendar for conflicts. Applies the same scheduling, etiquette, and timezone wisdom as `my-calendar` but executed against the user's connected calendar instead of your own. The calendar belongs to THEM, not to you. For your own calendar (the one the Righthand uses `agent calendar` against directly), use `my-calendar` instead.