HUB: the inbox arrives inside the identify response, and batch work is claimed with POST /api/nightshift/claim. SHAREPOINT: a Tasks list with AssignedTo and a My Tasks VIEW whose CAML filters on the current user - the single most-used view in SharePoint. STATUS: the list and the column exist; the VIEW does not, because SPICE has no View primitive at all (SPF.2). This is the row where that gap stops being abstract: without a filter there is no such thing as MY tasks, only ALL tasks, and an agent handed the whole board has to be told what is its own. Claiming is a status transition on a row the claimer sets AssignedTo on - no new mechanism.