The Collective Architect: Role Distribution and the Limits of Collective Tragic Judgment. Article 12

Governance systems cannot distinguish between the bearer of responsibility and the bearer of tragic judgment — and this article shows that this is a structural blind spot, not a practical oversight. Article 11 of the ATTS series established the architect of a multi-agent system as a distinct ontological type and showed that the architect's participation in the loss-space is exhausted by three irreducible roles: target state-space specification (Role 1), loss boundary establishment (Role 2), and structural responsibility (Role 3). But Article 11 left open the question that is central to the overwhelming majority of real configurations: how are these three roles distributed when the architect is not an individual normative subject but a collective — a distributed team, a supply chain, a regulatory network? The central result of this article is not a typology and not a test — it is a new line of distinction: between the bearer of responsibility and the bearer of tragic judgment. Before this distinction, governance instruments did not differentiate between these two positions — the automatic closure of Role 3 through the Closure Theorem (the Theorem of Moral Field Closure, T1) created the illusion that the question of accountability was resolved in full. This article shows that a system may have a perfectly identified bearer of Role 3 — and simultaneously have a structural vacancy in Role 2: the act of tragic judgment about acceptable loss boundaries never occurred, and no transparency can restore it post factum. This article proves that a collective normative subject can occupy the structural position of architect — discharging Role 1 and Role 3 through its collective decision-making structure — but Role 2 cannot be collectively discharged without remainder. Genuine tragic judgment about acceptable losses requires an identified bearer whose integrity is at stake in the decision, as established by the Lemma of Tragic Judgment, derived as a tight structural reconstruction from the axiom of subjecthood, the axiom of tragedy, and the anthropological corollary. Where no such bearer exists within the collective architect, Role 2 defaults structurally to the individual normative subject who authorised the architectural act — because the Closure Theorem preserves the connection and the Non-Transferability Lemma prevents its full transfer. The article introduces the Tragic Judgment Test with three conditions — bearer identifiability, integrity at stake (the integrity-at-stake condition), irreversibility accepted (the irreversibility-accepted condition) — and describes four configurations of the collective architect (C1–C4), showing where the Tragic Judgment Test finds a bearer and where it registers a structural vacancy. The structural vacancy in Role 2 is a form of alibi at a higher level than the algorithmic alibi (Articles 5, 9) or the epistemic alibi (Article 10): when the algorithmic alibi operates, the act of judgment occurred but its visibility is destroyed; when Role 2 is vacant, the act of judgment never occurred at all — and the bearer of responsibility and the bearer of tragic judgment are structurally distinct positions that previously appeared as one. The falsification condition: a collective subject whose structure satisfies the axiom of subjecthood at the collective level (the collective continuity conditions) and can bear the irreversible consequences of an architectural decision as a single identified bearer — without the possibility of decomposing them to individual members through the Closure Theorem — would falsify the central thesis.