@@ -0,0 +1,13 @@
+---
+"@objectstack/metadata-protocol": patch
+---
+
+An expanded view of a stored view container is reported as tenant-authored on an unscoped kernel, as it already was on an environment-scoped one: not resettable, and with no `code` layer
+
+Clause-②: no
+
+On an unscoped (control-plane) kernel, registry hydration registers each view a stored environment-wide container expands, under that view's own name. The container was registered with the tenant-authorship marker (`_provenance: 'org'`), and its expansions were not. An expansion of a container bound to a package therefore carried that package's id and no marker, and the registry's artifact lookup took it for a view the package ships. For such a name `getMetaItem` (`GET /api/v1/meta/view/NAME`) answered `resettable: true`, and `getMetaItemLayered` (`/layers`) answered the stored container's expansion as the `code` layer. The `code` layer was also wrong for an expansion of a package-less container. An environment-scoped kernel registers nothing, and answered `resettable: false` and `code: null`.
+
+Each registered expansion now carries its container's marker, applied before the expansion's own artifact envelope, in the same order the container gets it. Where the container's own package ships a view of that name, that artifact's envelope still wins (ADR-0010 §3.3). Both kernels now give the same answer for every expanded name. Studio's reset affordance and its code-versus-overlay diff are drawn from these two values.
+
+The save door is unchanged: it accepts a write by an expanded name on both kernels, as before, and the stored row then answers that name.
@@ -1717,8 +1717,10 @@ function stripDerivedProvenance(item: unknown): unknown {
  * the same verdict from the same row (cloud#970's shape, for non-`object`
  * types).
  *
- * ⚠️ Its ONE caller applies it BEFORE {@link mergeArtifactProtection}, and the
- * order is the whole contract: where a real artifact exists the artifact's
+ * ⚠️ Both callers — the container in `hydrateOverlayIntoRegistry` and, since
+ * #21511, each view expansion it registers (`expandRuntimeViewContainer`
+ * under `tenantAuthored`) — apply it BEFORE {@link mergeArtifactProtection},
+ * and the order is the whole contract: where a real artifact exists the artifact's
  * envelope still overwrites `_provenance` (and `_packageId` /
  * `_packageVersion` / `_lock*`) on the way out, so package protection is
  * untouched — ADR-0010 §3.3 precedence is unchanged in both directions.
@@ -16789,7 +16791,18 @@ export class ObjectStackProtocolImplementation implements
     private expandRuntimeViewContainer(
         type: string,
         data: unknown,
-        options: { packageId?: string | null },
+        options: {
+            packageId?: string | null;
+            /**
+             * [#21511] State each expansion's authorship the way
+             * {@link hydrateOverlayIntoRegistry} states its container's:
+             * {@link stateTenantAuthorship} first, then the item's own
+             * artifact envelope merged over it. Set only by the caller that
+             * REGISTERS the expansions ({@link hydrateExpandedViewItems}); the
+             * registry-free reads serve exactly what they served before.
+             */
+            tenantAuthored?: boolean;
+        },
     ): Record<string, unknown>[] {
         if ((PLURAL_TO_SINGULAR[type] ?? type) !== 'view') return [];
         if (!isAggregatedViewContainer(data)) return [];
@@ -16823,7 +16836,11 @@ export class ObjectStackProtocolImplementation implements
             const ownArtifact = (viArtifact as { _packageId?: unknown } | undefined)?._packageId === ownPackageId
                 ? viArtifact
                 : undefined;
-            out.push(mergeArtifactProtection(item, ownArtifact) as Record<string, unknown>);
+            // [#21511] The marker goes on BEFORE the envelope, never after:
+            // where the item's own artifact exists, its `_provenance` still
+            // wins (ADR-0010 §3.3), as it does on the container.
+            const authored = options.tenantAuthored ? stateTenantAuthorship(item) : item;
+            out.push(mergeArtifactProtection(authored, ownArtifact) as Record<string, unknown>);
         }
         return out;
     }
@@ -16990,14 +17007,29 @@ export class ObjectStackProtocolImplementation implements
      * always did (env-wide rows on an unscoped/control-plane kernel — the ONLY
      * combination #7736's own pin ever exercised), now with the corrected
      * derivation chain.
+     *
+     * ## [#21511] An expansion inherits its container's authorship
+     *
+     * Every expansion registered here is derived from a stored row, so it is
+     * tenant-authored exactly as its container is, and it carries the same
+     * marker {@link hydrateOverlayIntoRegistry} stamps on the container
+     * ({@link stateTenantAuthorship}, applied before the item's own artifact
+     * envelope). Without it, an expansion of a package-bound container sat
+     * under its bare name wearing that package's `_packageId` and no tenant
+     * marker, so `SchemaRegistry.getArtifactItem`'s bare-key fallback took it
+     * for a code artifact: on an unscoped kernel the by-name read reported
+     * the expanded view `resettable` and the layers read reported it as its
+     * own `code` layer (for a package-less container too, through the
+     * runtime-only `getItem` arm), where `env_local`, which registers nothing,
+     * reported neither. With the marker both kernels give one answer.
      */
     private hydrateExpandedViewItems(
         type: string,
         data: unknown,
         options: { packageId?: string | null; organizationId: string | null },
         registry: any,
     ): void {
-        for (const item of this.expandRuntimeViewContainer(type, data, options)) {
+        for (const item of this.expandRuntimeViewContainer(type, data, { ...options, tenantAuthored: true })) {
             registry.registerItem(type, item, 'name' as any);
         }
     }
 
@@ -1062,6 +1062,129 @@ describe('#21334 a container on another package\'s object never takes that packa
             });
         }
     });
+
+    /**
+     * #21511 — an expansion inherits its container's authorship, so the
+     * unscoped kernel answers an expanded view as `env_local` does.
+     *
+     * Registry hydration (an unscoped kernel's environment-wide rows only)
+     * registered each expansion of a stored container under its bare name with
+     * no tenant marker, while the container itself carries one
+     * (`_provenance: 'org'`). Measured on `origin/main` before this change, with
+     * this harness and the card's probe: `getMetaItem(...).resettable` answered
+     * `true` for a package-bound container (`env_local`: `false`), and
+     * `getMetaItemLayered` answered the hydrated expansion as the `code` layer
+     * for a package-bound and a package-less container alike (`env_local`:
+     * `null`). Triage's ruling: each expansion carries its container's marker,
+     * and the save door's acceptance of a write by an expanded name is
+     * unchanged.
+     */
+    describe('#21511 an expanded view of a stored container answers as tenant-authored on both kernels', () => {
+        /** The arms registry hydration registers: environment-wide rows. */
+        const ENV_WIDE = CONTAINERS.filter((c) => c.organizationId === undefined);
+        /** What the two reads tell a caller about an item's code layer and its affordances. */
+        const answer = async (protocol: Protocol, name: string) => {
+            const meta = (await protocol.getMetaItem({ type: 'view', name } as any)) as any;
+            const layered = (await protocol.getMetaItemLayered({ type: 'view', name })) as any;
+            return {
+                resettable: meta.resettable, editable: meta.editable, deletable: meta.deletable, lock: meta.lock,
+                provenance: meta.provenance, packageId: meta.packageId, code: layered.code,
+            };
+        };
+        const kernelName = (environmentId: string | undefined) => environmentId ?? 'unscoped';
+
+        for (const c of ENV_WIDE) {
+            for (const [kind, m] of Object.entries(MEMBER_CASES)) {
+                it(`${c.arm}, member ${kind}: the expanded view is not resettable and has no code layer, on both kernels alike`, async () => {
+                    const answers = [];
+                    for (const [, environmentId] of KERNELS) {
+                        const { protocol } = showcaseHarness(environmentId);
+                        await save(protocol, OWN, { name: OWN, object: TASK, ...m.member }, c);
+                        const a = await answer(protocol, m.servedAs);
+                        expect(a.resettable, `${kernelName(environmentId)}: no package ships it`).toBe(false);
+                        expect(a.code, `${kernelName(environmentId)}: no artifact, so no code layer`).toBeNull();
+                        answers.push(a);
+                    }
+                    expect(answers[1], 'the unscoped kernel answers as env_local does').toEqual(answers[0]);
+                });
+            }
+
+            it(`${c.arm}: on an unscoped kernel each registered expansion carries its container's tenant marker`, async () => {
+                const { protocol, registry } = showcaseHarness(undefined);
+                const m = MEMBER_CASES['listViews.*'];
+                await save(protocol, OWN, { name: OWN, object: TASK, ...m.member }, c);
+
+                const container = registry.getItem('view', OWN);
+                expect(container?._provenance, 'the container is registered as tenant-authored').toBe('org');
+                const expansions = registry.listItems('view').filter((it) => String(it.name).startsWith(`${TASK}.${OWN}`));
+                expect(expansions.map((it) => it.name), 'hydration registered the expansion').toEqual([m.servedAs]);
+                for (const it of expansions) {
+                    expect(it._provenance, `${it.name} inherits the container's marker`).toBe(container?._provenance);
+                    expect(it._packageId, `${it.name} keeps its container's package`).toBe(c.ownPackage);
+                    expect(isCodeArtifactBody(it), `${it.name} is no code artifact`).toBe(false);
+                }
+            });
+
+            it(`${c.arm}: the save door still accepts a write by an expanded name, alike on both kernels, and that row then answers the name`, async () => {
+                const m = MEMBER_CASES['listViews.*'];
+                const byName = {
+                    name: m.servedAs, object: TASK, viewKind: 'list', label: 'ByName',
+                    config: { type: 'grid', data, columns: [{ field: 'title' }] },
+                };
+                const outcomes = [];
+                for (const [, environmentId] of KERNELS) {
+                    const { protocol, rows } = showcaseHarness(environmentId);
+                    await save(protocol, OWN, { name: OWN, object: TASK, ...m.member }, c);
+                    const saved = (await save(protocol, m.servedAs, byName, c)) as any;
+                    const stored = [...rows.values()]
+                        .filter((r) => r.name === m.servedAs)
+                        .map((r) => ({ package_id: r.package_id, organization_id: r.organization_id, state: r.state }));
+                    expect(stored, `${kernelName(environmentId)}: stored once, in the container's scope`)
+                        .toEqual([{ package_id: c.packageId ?? null, organization_id: null, state: 'active' }]);
+                    expect((await byNameDoor(protocol, m.servedAs))?.label).toBe('ByName');
+                    expect(named(await objectDoor(protocol), m.servedAs).map((v) => v.label)).toEqual(['ByName']);
+                    outcomes.push({ success: saved?.success, stored, ...(await answer(protocol, m.servedAs)) });
+                }
+                expect(outcomes[0].success).toBe(true);
+                expect(outcomes[1], 'the unscoped kernel answers the write as env_local does').toEqual(outcomes[0]);
+            });
+        }
+
+        it('CONTROL — an expansion its own package ships keeps that artifact\'s envelope over the marker (ADR-0010 §3.3): resettable, with the packaged code layer, on both kernels alike', async () => {
+            const overlay = {
+                name: TASK,
+                list: { label: 'Customized', type: 'grid', data, columns: [{ field: 'title' }] },
+                listViews: { in_progress: { label: 'Customized In Progress', type: 'grid', data, columns: [{ field: 'title' }] } },
+            };
+            const shipped = [DEFAULT, `${TASK}.in_progress`];
+            const answers: Record<string, unknown>[][] = [];
+            for (const [, environmentId] of KERNELS) {
+                const { protocol, registry } = showcaseHarness(environmentId);
+                // A package-less overlay OF the showcase's own container (ADR-0005,
+                // name-keyed): it expands to names the showcase ships, in its slot.
+                await protocol.saveMetaItem({ type: 'view', name: TASK, item: overlay } as any);
+                const perKernel = [];
+                for (const name of shipped) {
+                    const a = await answer(protocol, name);
+                    expect(a.resettable, `${kernelName(environmentId)}, ${name}: the showcase ships it`).toBe(true);
+                    expect((a.code as any)?.label, `${kernelName(environmentId)}, ${name}: the packaged code layer`)
+                        .toBe(PACKAGED.find((v) => v.name === name)?.label);
+                    perKernel.push(a);
+                    if (environmentId === undefined) {
+                        const hydrated = registry.listItems('view')
+                            .filter((it) => it.name === name && String(it.label).startsWith('Customized'));
+                        expect(hydrated, `${name}: hydration registered the overlay's expansion`).toHaveLength(1);
+                        expect(
+                            { _provenance: hydrated[0]._provenance, _packageId: hydrated[0]._packageId },
+                            `${name}: the artifact's envelope is merged over the marker, not under it`,
+                        ).toEqual({ _provenance: 'package', _packageId: SHOWCASE });
+                    }
+                }
+                answers.push(perKernel);
+            }
+            expect(answers[1], 'the unscoped kernel answers as env_local does').toEqual(answers[0]);
+        });
+    });
 });
 
 /**