GET /v2/recurring_items?start_date=…&end_date=…&include_suggested=true already returns the suggested pile — on my account that is well over a hundred suggestions against a couple dozen reviewed items. There is no way to act on any of them over the API, so triage is one browser click at a time.

POST /v2/recurring_items/{id}/confirm and /reject, or a PUT that sets status, would make the pile scriptable and would pair with a read that already exists.