Choose the period (week/month/year) when adding via Shortcuts
Entries created through the iOS Shortcuts / Siri actions can only ever land on a specific day, or in the Inbox if no date is given. There's no way to add something to a week's list, a month, or a year.
Ask: a period option on the Shortcuts actions so a captured entry can go straight to the week (or month/year) rather than a single day.