@@ -443,7 +443,7 @@ except where noted:
 | RLS policy / Sharing rule / OWD `sharingModel` | metadata / hybrid / metadata | Unchanged in class. `sharingModel` default flipped to `private` for custom objects (ADR-0090 D1) and gained `externalSharingModel` (D11). `sys_sharing_rule` is **record-authoritative** (seed-not-clobber), per the ADR-0094 addendum. |
 | **`everyone` / `guest`** built-in positions | **config** (admin-confirmed) | NEW default-grant mechanism (ADR-0090 D5/D9) that replaces the `member_default` fallback + ADR-0056 D7 default-profile. Packages *suggest* bindings; admins confirm. High-privilege bits on `everyone`/`guest` are lint-blocked. |
 | **Assignment** `sys_user_position` / `sys_position_permission_set` (was `sys_user_permission_set` / `sys_role_permission_set`) | **config / data** | Tables renamed (ADR-0090 D3); still the universal DEFINITION↔ASSIGNMENT line. ADR-0091 adds `valid_from`/`valid_until` — assignment is now *time-boxed* config. |
-| Delegated-admin **`adminScope`** on a set | **metadata (definition) + config (grant)** | NEW (ADR-0090 D12): admin capability itself is scoped (BU subtree + assignable-set allowlist + no self-escalation); `authorEnvironmentSets` keeps package-managed rows publish-only per this ADR. |
+| Delegated-admin **`adminScope`** on a set | **metadata (definition) + config (grant)** | NEW (ADR-0090 D12): admin capability itself is scoped (BU subtree + assignable-set allowlist + no self-escalation). The scope assigns and grants; it never authors a set: `authorEnvironmentSets` is retired (2026-10-15, ruling of record 6181988435 on #23488), because a permission set is an environment definition whose write is `manage_metadata`'s ([ADR-0131](./0131-total-organization-ownership-no-null-organization-id.md) D3), and package-managed sets stay publish-only per this ADR. |
 | Organization / tenancy / actual users & teams | **config / data** | Unchanged. Tenancy is now an explicit kernel service (ADR-0093) and tenant isolation an always-first Layer 0 (ADR-0095). Teams *receive* sharing, never carry capability (ADR-0090 D8). |
 
 > **Note (2026-10-14) — the position → permission-set binding is a definition now.**
 
@@ -4,6 +4,7 @@
 · **Amended** (2026-10-13, ADR-0138 D3/D4) — D9's `guest` anchor bindings resolve for anonymous requests, in the organization ADR-0138 D4 resolves; an empty set denies all.
 · **Amended** (2026-10-14, [ADR-0131](./0131-total-organization-ownership-no-null-organization-id.md) D3/D13) — two of the row objects D3 renames into, `sys_position` and `sys_position_permission_set`, and the `sys_capability` D5 names, are retired by #15204 stage 8 (`66949b7729`, 2026-10-13): a position is a metadata-registry definition that names its sets in `PositionSchema.permissionSets`; `sys_user_position` stays. See the notes under D3, D5 and D8.
 · **Amended** (2026-10-14, ruling of record 6159300530 on #23268, letter A) — D11's external org-wide default is retired: external visibility is the [ADR-0095](./0095-authz-kernel-tenant-layer-and-posture-ladder.md) `EXTERNAL` rung, explicitly shared rows only. See the note under D11.
+· **Amended** (2026-10-15, ruling of record 6181988435 on #23488, letter A) — D12's position↔set binding right and its environment-set authoring right are retired (`AdminScope.manageBindings` and `AdminScope.authorEnvironmentSets`, ADR-0049 enforce-or-remove): a position's sets and a permission set's body are environment definitions, and the definition write is `manage_metadata`'s per [ADR-0131](./0131-total-organization-ownership-no-null-organization-id.md) D3, never a delegate scope's. D12's *what* is user↔position assignments (and direct set grants) inside the subtree; read its bindings and authoring clauses as superseded by this line.
 **Deciders**: ObjectStack Protocol Architects
 **Builds on**: [ADR-0049](./0049-no-unenforced-security-properties.md) (enforce-or-remove),
 [ADR-0056](./0056-permission-model-landing-verification.md) (permission-model landing verification),