@@ -0,0 +1,11 @@
+---
+'@objectstack/plugin-security': patch
+---
+
+refactor(plugin-security): the audience-anchor binding gate on `sys_position_permission_set` is deleted
+
+Clause-②: no
+
+`SecurityPlugin`'s private engine-middleware gate that refused binding a high-privilege permission set to the `everyone` or `guest` position guarded writes to `sys_position_permission_set` only. C3 stage 8 (#23222) unregistered that object, so no write has reached the gate since. The gate, its call in the middleware and its three unit cases are removed.
+
+No behaviour changes, and nothing exported changes. The anchor tier itself (`describeAnchorForbiddenBits` from `@objectstack/spec/security`) still applies wherever a binding is made: when an `everyone` suggestion is confirmed (`confirmAudienceBindingSuggestion`), and on every derivation of the `everyone` anchor. No door binds a set to `guest`.
@@ -16,7 +16,7 @@ ADR-0005 rollback landed by #6483 / PR #6608)
 > **RETIRED 2026-10-13 (#15204 stage 8, `66949b7729`, by execution of [ADR-0131](./0131-total-organization-ownership-no-null-organization-id.md) D2/D3/D13).**
 > The `sys_permission_set` row object is no longer registered, and the machinery that kept it a
 > projection — the write-through (D3), the `permission` projector (D2) and the boot reconcile and
-> backfill (D4) — is unwired; its module stays in the tree until #15204 stage 7a deletes it. D1
+> backfill (D4) — is unwired, and #15204 stage 7a (#23368) deleted its module (`permission-set-projection.ts`, with the seed-name lookup and the refusal sink). D1
 > stands. Read the rest of this summary, D2–D4 and the Consequences in the past tense.
 
 A permission-set **definition** (label, description, the six facet groups, `adminScope`,
@@ -184,9 +184,10 @@ is `managed_by:'admin'` while its definition ships as a platform artifact, and i
 data-door edit is **refused** — the record's provenance column was never what the gate
 read. The mirror case is `twodoors_pkgset`, whose row is `managed_by:'package'` while its
 definition lives in `sys_metadata` (that materialization is pinned in the same file);
-that an edit of such a row still **lands** is pinned as a unit case in
+that an edit of such a row still **lands** was pinned as a unit case in
 `packages/plugins/plugin-security/src/permission-set-projection.test.ts`, whose protocol
-stub models this gate.
+stub modelled this gate, until #15204 stage 7a (#23368) deleted that suite with the
+projection it pinned.
 
 The refusal is left to the producer deliberately: `plugin-security` does not re-derive
 artifact-backing to pre-empt it. That rule belongs to the metadata protocol
@@ -395,9 +396,11 @@ other write.
   `packages/metadata-protocol/src/protocol.ts` (`saveMetaItem` /
   `deleteMetaItem` tier gates) and
   `packages/metadata-protocol/src/sys-metadata-repository.ts` (`assertAllowed`).
-- Implementation: `packages/plugins/plugin-security/src/permission-set-projection.ts`,
-  `packages/metadata-protocol/src/protocol.ts` (`registerMutationProjector`),
-  `packages/plugins/plugin-security/src/security-plugin.ts` (wiring).
+- Implementation: `packages/plugins/plugin-security/src/permission-set-projection.ts`
+  (deleted by #15204 stage 7a, #23368, after stage 8 unwired it),
+  `packages/metadata-protocol/src/protocol.ts` (`registerMutationProjector`, the seam that
+  stays), `packages/plugins/plugin-security/src/security-plugin.ts` (the wiring, removed by
+  stage 8).
 
 ---
 
 
@@ -49,9 +49,14 @@ write policy **expressible and enforced** without breaking the writable set.
 
 > **Not to be confused with** the row-level `managed_by` *provenance* column
 > (`'platform' | 'package' | 'admin'`) on `sys_sharing_rule` / `sys_position` /
-> `sys_capability`, guarded by `assertSystemRowWriteGate` (ADR-0066). That is a
-> per-row provenance axis; this ADR is about the per-object schema bucket. The
-> shared word is a coincidence.
+> `sys_capability` (ADR-0066). That is a per-row provenance axis; this ADR is about
+> the per-object schema bucket. The shared word is a coincidence. Of the three
+> objects named here, only `sys_sharing_rule` is still registered on `main`, and its admin
+> edits are stamped `customized` by plugin-sharing's provenance hook
+> (`packages/plugins/plugin-sharing/src/sharing-rule-provenance.ts`), not refused.
+> `SecurityPlugin.assertSystemRowWriteGate` guarded `sys_position` and
+> `sys_capability` (never `sys_sharing_rule`), and no write reaches it since
+> #15204 stage 8 unregistered both.
 
 > **Note (2026-10-14) — three objects named above are retired.** `sys_position_permission_set`
 > (item 2), `sys_position` and `sys_capability` are no longer registered since #15204 stage 8
 
@@ -94,7 +94,7 @@ Three real mechanisms operate across those tiers, each invented separately:
 - **Clone-to-customize** (#11513, permission sets only): server-side lock on the packaged base
   (`packaged-permission-set-lock.ts`), a clone action demanding a new name, and — the piece this
   ADR generalizes — the ruling that **switching a packaged artifact off is row state, not a
-  definition write** (`packages/plugins/plugin-security/src/permission-set-projection.ts`, #4669).
+  definition write** (`packages/plugins/plugin-security/src/permission-set-projection.ts`, #4669; *Path note, 2026-10: #15204 stage 8 retired the `sys_permission_set` row whose `active` column carried that row state, and stage 7a (#23368) deleted the module; the path is kept as the record of what this section measured*).
 - **Extend** (`objectExtensions`, `packages/spec/src/data/object.zod.ts`; navigation
   contributions, ADR-0029 D7): a package adds fields/validations/indexes to another package's
   object, or nav items to another package's app, merged at boot. Package-grain, additive,
 
@@ -63,6 +63,12 @@ seeders, `bootstrap-platform-admin.ts`, `permission-set-projection.ts`), `plugin
 `plugin-audit`, `service-storage`, `plugin-approvals`, `service-automation`, `objectui` (Setup /
 Studio / pickers — D7), and in their own repository `cloud`'s control plane and `objectos-ee`.
 
+> **Note (2026-10-14) — C3 retired the `plugin-security` consumers it names.** The five bootstrap
+> seeders went with #15204 stages 6a and 6b (ADR-0131 D2), and `permission-set-projection.ts` with
+> stage 7a (#23368), after stage 8 (`66949b7729`) unwired it. `tenant-layer.ts`,
+> `per-organization-catalog.ts` and `bootstrap-platform-admin.ts` remain. The list above is the
+> consumer set as this record was written.
+
 ---
 
 ## TL;DR
@@ -999,6 +1005,10 @@ fate 2 after a verified rewrite; no surface builds a merged server-paged list of
   `packages/plugins/plugin-email/src/template-loader.ts`;
   `packages/metadata-core/src/meta-write-org-scope.ts`;
   `packages/spec/src/data/injected-system-columns.ts`; `scripts/check-tenant-chokepoint.mjs`.
+  *Note (2026-10-14):* of the `plugin-security` files above, `bootstrap-declared-permissions.ts`,
+  `bootstrap-declared-positions.ts`, `bootstrap-builtin-positions.ts` and
+  `bootstrap-system-capabilities.ts` were deleted by #15204 stages 6a and 6b, and
+  `permission-set-projection.ts` by stage 7a (#23368). The list is kept as measured at `2514d49f3`.
 - Code (cloud, `main` `3856fbf7`): `packages/service-cloud/src/control-plane-platform-global.ts`;
   `packages/service-cloud/src/control-plane-org-scope-plugin.ts`;
   `packages/service-cloud/src/migrations/org-id-backfill.ts`;
 
@@ -167,8 +167,10 @@ re-checked at the same head, shape the decisions:
   enforcing reader keys on the string `'guest'`: the envelope
   (`packages/core/src/security/assemble-execution-context.ts#entryFields`), explain's `EXTERNAL` floor
   (`packages/plugins/plugin-security/src/explain-engine.ts#derivePosture`), the anchor binding tier
-  (`packages/spec/src/security/high-privilege.ts#describeAnchorForbiddenBits`, called from
-  `packages/plugins/plugin-security/src/security-plugin.ts#SecurityPlugin.assertAudienceAnchorBindingGate`),
+  (`packages/spec/src/security/high-privilege.ts#describeAnchorForbiddenBits`; at `7b926f7600` an
+  engine write gate on `sys_position_permission_set` called it, and that table was retired by #15204
+  stage 8 and the gate deleted by #23403, so on `main` its `guest` tier has no caller until item 5's
+  bind door),
   and delegated administration (`packages/plugins/plugin-security/src/delegated-admin-gate.ts#ANCHOR_POSITIONS`).
 - **Two guest values are declared with nothing behind them.** A package may suggest a `guest`
   binding (`packages/plugins/plugin-security/src/objects/sys-audience-binding-suggestion.object.ts#anchor`),
@@ -367,8 +369,12 @@ unchanged. **Card**: E2.
    three.
 4. **The binding tier stands.** A set bound to `guest` must pass the strictest anchor tier:
    explicit objects only, no wildcard, read-mostly with create case by case, no view-all or
-   modify-all, no system permissions (ADR-0090 D9; `describeAnchorForbiddenBits`, enforced by
-   `SecurityPlugin.assertAudienceAnchorBindingGate`). A delegated administrator never binds an anchor
+   modify-all, no system permissions (ADR-0090 D9; `describeAnchorForbiddenBits`). The predicate
+   runs where a binding is made: for `everyone`, when a suggestion is confirmed
+   (`confirmAudienceBindingSuggestion`) and on every derivation of the anchor
+   (`readAcceptedEveryoneSets`); for `guest`, no door binds a set today (item 5), and the bind door
+   runs it when built. The engine gate that once applied it to `sys_position_permission_set` rows
+   retired with that table (#15204 stage 8; the gate was deleted by #23403). A delegated administrator never binds an anchor
    (ADR-0090 D12; `ANCHOR_POSITIONS`). Unchanged.
 5. **How a deployment grants: implementation-first.** The bind door is built when a named
    deployment needs to grant the guest on a public surface (a site or portal) and the class-1 form
@@ -391,9 +397,9 @@ unchanged. **Card**: E2.
    so ⛔ opening that door (`PUT /meta/position/guest`) is refused: it reverses the seal and misses
    environment kernels. The row half stays item 6: share links and, when built, an explicit guest
    sharing rule (read-only, criteria-based, the strictest lint tier), the only shape in which D8's
-   retired `guest` recipient returns. **Re-read when the door is built:** item 4's guest tier of
-   `assertAudienceAnchorBindingGate`, which guards `sys_position_permission_set` rows that no
-   binding reader reads, and objectui's pin that a guest row offers no Accept
+   retired `guest` recipient returns. **Re-read when the door is built:** item 4's guest tier, which
+   no door runs today (the engine gate that carried it guarded `sys_position_permission_set` rows,
+   retired by #15204 stage 8, and was deleted by #23403), and objectui's pin that a guest row offers no Accept
    (`objectui:packages/app-shell/src/components/SuggestedBindingsPanel.tsx`). Amended by ruling C
    on [#23267](https://github.com/objectstack-ai/objectstack/issues/23267)
    ([`6159279205`](https://github.com/objectstack-ai/objectstack/issues/23267#issuecomment-6159279205)).
@@ -575,7 +581,7 @@ that card lands; no row is declared without an enforcer.
 | no `system` flow behind an anonymous flow door | D2b | the publish path, in both directions | card E2 |
 | the guest's grants, and deny-all when none | D3 | the anonymous branch of `resolveAuthzContext` | card E1 |
 | no door binds a set to `guest` until the bind door is built | D3 item 5 (amended) | the anchors' seal (`NOT_OVERRIDABLE`; the package door's built-in names) and `confirmAudienceBindingSuggestion`'s refusal of a `guest` row | enforced; the door is follow-up F4 |
-| the anchor binding tier | ADR-0090 D9; D3 | `describeAnchorForbiddenBits`, through `assertAudienceAnchorBindingGate` | enforced |
+| the anchor binding tier | ADR-0090 D9; D3 | `describeAnchorForbiddenBits`: for `everyone` through `confirmAudienceBindingSuggestion` and `readAcceptedEveryoneSets`; for `guest`, through the bind door when it is built (no door binds a set to `guest`, the row above) | enforced for `everyone`; `guest`: follow-up F4 |
 | no delegated binding of an anchor | ADR-0090 D12 | `ANCHOR_POSITIONS` | enforced |
 | the guest's organization | D4 | the guest entry's organization step, with `resolveSystemWriteOrganization`'s predicate | card E1 |
 | the form doors' organization | D4, clarification (1) | `anonymousFormIntakeUnavailability`; the engine's write derivation | enforced |
 
@@ -33,8 +33,9 @@
  * an operator binds to `guest` at install time is a decision ADR-0090 D9
  * ("a package may suggest bindings … the admin confirms each individually")
  * puts past authoring, so this rule is not — and cannot be — coverage for an
- * app-authored anchor set bound to `guest` (#16110). That binding is held by
- * the runtime's own `describeAnchorForbiddenBits(set, 'guest')` gate instead.
+ * app-authored anchor set bound to `guest` (#16110). No runtime door binds a
+ * set to `guest` today; ADR-0138 D3 item 5's bind door runs
+ * `describeAnchorForbiddenBits(set, 'guest')` when it is built.
  *
  * `security-cbp-ambiguous-relation` used to be the one exception: the runtime
  * did not refuse two candidate masters, it silently PICKED one by field
 
@@ -16,8 +16,9 @@
  *        {"title":"…","project":"proj_does_not_exist","status":"backlog"}   → 200
  *
  * On the RBAC link tables a dangling row is a security-surface record that
- * resolves to nothing: the audience-anchor gate has to resolve that permission
- * set to evaluate the grant, so the binding is an unevaluable gate input.
+ * resolves to nothing: a grant naming a permission set nothing serves. (The
+ * audience-anchor gate that once had to resolve such a set retired with
+ * `sys_position_permission_set`, C3 stage 8.)
  */
 
 import { describe, it, expect, beforeEach } from 'vitest';
 
@@ -5514,9 +5514,10 @@ export class ObjectQL implements IObjectQLEngine {
    *  - **The remaining PRE-RESOLUTION gates, which run beside the two named
    *    above.** Two judge a row's PROVENANCE, which the preview holds no row to
    *    carry: the ADR-0086/0094 package-managed write gate and the ADR-0066
-   *    system-row write gate. Two judge a payload VALUE: the ADR-0066 D1
-   *    curated-capability-name refusal and the ADR-0090 D5/D9 audience-anchor
-   *    binding guard. And the ADR-0056 `publicFormGrant` scope, which admits
+   *    system-row write gate. One judges a payload VALUE: the ADR-0066 D1
+   *    curated-capability-name refusal (the ADR-0090 D5/D9 audience-anchor
+   *    binding guard retired with `sys_position_permission_set`, C3 stage 8).
+   *    And the ADR-0056 `publicFormGrant` scope, which admits
    *    create plus read-back on exactly the granted object and refuses
    *    everything else — not asked because no wire caller and no constructor
    *    in the tree presents that grant here (only the public form-submit route
@@ -8856,9 +8857,10 @@ export class ObjectQL implements IObjectQLEngine {
    *
    * On the RBAC link tables that is a security-surface record that resolves to
    * nothing: an administrator auditing permissions sees a binding whose target
-   * cannot be inspected, and the audience-anchor gate has to resolve that very
-   * set to evaluate the grant — so a dangling row is an unevaluable gate input,
-   * not merely an untidy one.
+   * cannot be inspected, and the audience-anchor gate had to resolve that very
+   * set to evaluate the grant — so a dangling row was an unevaluable gate input,
+   * not merely an untidy one. (That gate and `sys_position_permission_set` are
+   * retired since C3 stage 8; the check stands for the link tables that remain.)
    *
    * ## Scope, deliberately narrow
    *
@@ -20839,7 +20841,8 @@ export class ObjectRepository implements IScopedObjectRepository {
    * middleware (`:1616`, `canExport` at `:4573`); the ADR-0103 engine-owned/
    * append-only write guard (`system-write-guard.ts:96,120`, called at
    * `security-plugin.ts:1736`); the package-managed / system-row /
-   * curated-capability-name / audience-anchor write gates
+   * curated-capability-name write gates (and, until C3 stage 8, the
+   * audience-anchor gate)
    * (`security-plugin.ts:1690-1724`); the referential-integrity check
    * (`:5892` in this file) and the tenant-audit mute (`:3773`) — in addition
    * to the static `readonly`/runtime-owned strip on BOTH update paths
 
@@ -122,8 +122,7 @@ describe('[#4551] dangling stored references are reported, never rewritten', ()
   it('finds a dangling reference and reports its FULL location', async () => {
     // The residual #4441 left: a system write put a permission-set id here that
     // names no row. On an RBAC link table that is a security-surface record
-    // resolving to nothing — the audience-anchor gate has to resolve exactly
-    // that set to evaluate the grant.
+    // resolving to nothing: a grant naming a permission set nothing serves.
     const port = makePort({
       objects: [binding],
       rows: {