@@ -0,0 +1,28 @@
+---
+'@objectstack/metadata-protocol': minor
+---
+
+fix(metadata-protocol)!: the direct metadata save and the per-item publish refuse an object whose name lacks its package's namespace prefix, as the package draft publish already does
+
+Clause-②: no (narrowing)
+
+<!-- adr-0087: not-required (no-migration-prescription) a refusal at the direct (publish-mode) metadata save door and at the per-item publish door of an object name that the package draft publish pre-flight, `os validate` and `os build` already refuse under ADR-0129 D2: no authorable key, spelling, export, error code or stored shape moves, and no stored row is read, rewritten or converted. A stored object whose name lacks its package's prefix keeps loading and serving; the repair is a new object under the prefixed name, which moves its table and so is the author's decision, not something a ledger entry can derive. The other categories are closed on facts: the package publishes (not unpublished); no ADR-0087 id covers these doors (not already-registered); and the change is a door verdict, not a declaration or an export (not runtime-interface-only or type-surface-only). -->
+
+**BREAKING** (an accept-set narrowing on the metadata save and publish doors), shipped as `minor` under the launch-window convention for breaking changes.
+
+ADR-0129 D2: a package declares its prefix once (`manifest.namespace`), and every object it defines is named `${namespace}_${shortName}`. The package draft publish (`POST /api/v1/packages/:id/publish-drafts`) refused an object draft without that prefix with `NAMESPACE_PREFIX`. Two other doors made that very same name `active` under the very same package: a direct save, and the publish of the single draft. That left an object whose own package could never publish a draft of it again, and three doors giving opposite verdicts on one name.
+
+- FROM: an object made `active` under a package that declares a namespace was accepted with `200` when its name lacked the `${namespace}_` prefix. Two doors did this:
+  - a publish-mode save: `PUT /api/v1/meta/object/:name?package=:id` (and `saveMetaItem` in publish mode), including a save naming no package that the door writes into such a package because the object's stored rows are bound to it;
+  - the promotion of a single draft: `POST /api/v1/meta/object/:name/publish?package=:id` (and `publishMetaItem`), including a publish naming no package whose draft the door promotes into such a package.
+- TO: both doors answer `422`, code `NAMESPACE_PREFIX`. The sentence is the one the draft publish gives for the same name, for example "Object 'v1_report' is missing the package namespace prefix. Rename it to 'rollup_v1_report' (namespace = 'rollup')."
+  - The save writes nothing.
+  - The publish promotes nothing, and the draft stays a draft.
+- Fix: name the object `${namespace}_${shortName}` (here `rollup_v1_report`), as `os validate`, `os build` and the draft publish already require. A package's namespace is the one it declares, or the one derived from its id when it was installed without one (`com.v1.rollup` is `rollup`).
+
+**Unchanged.**
+
+- A package that declares no namespace, and a save or publish bound to no package, are not judged.
+- A draft save (`mode=draft`) stores as before. The door that promotes the draft judges it, now with one sentence on all three doors.
+- `sys_*` names are exempt, as everywhere the rule runs.
+- Stored rows are not migrated and not refused on read. The next direct save or single-draft publish of a stored object whose name lacks its package's prefix is refused.
@@ -0,0 +1,354 @@
+// Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
+
+import { describe, expect, it } from 'vitest';
+// The producer's OWN write-verb dispatch decisions, so the fake engine below
+// cannot accept a call ObjectQL refuses (`check:engine-double-contract`).
+// Imported from `@objectstack/metadata-core` and not from
+// `@objectstack/objectql`: objectql DEPENDS ON this package.
+import { assertEngineDeleteDispatch, assertEngineUpdateDispatch, assertEngineFindOnePredicate } from '@objectstack/metadata-core';
+import { ObjectStackProtocolImplementation } from './protocol.js';
+
+/**
+ * [#24547 · ADR-0129 D2] The package namespace-prefix rule holds at ALL THREE
+ * runtime doors that make an object live under a package: the direct save,
+ * the package draft publish, and the per-item publish.
+ *
+ * ADR-0129 D2: a package declares its prefix once (`manifest.namespace`), and
+ * every object it defines MUST be named `${namespace}_${shortName}`. The
+ * draft-publish door (`publishPackageDrafts`) refused an unprefixed object
+ * draft with `NAMESPACE_PREFIX`, while the direct (publish-mode) save door
+ * stored the very same name `active` under the very same package — an object
+ * live under a name its own package's drafts could never publish again, and
+ * two runtime doors giving opposite verdicts on one name.
+ *
+ * Measured through the wire before the fix (stock showcase):
+ * `PUT /api/v1/meta/object/v1_report?package=com.v1.rollup` answered 200
+ * `state: "active"`, and the same name's draft was refused at
+ * `POST /api/v1/packages/com.v1.rollup/publish-drafts` with
+ * `NAMESPACE_PREFIX`.
+ *
+ * What these cases pin:
+ *  - the active door refuses the unprefixed name, with the envelope the door
+ *    gives every other authoring refusal (`code` + `status`), the authored
+ *    prescription the publish door serves for the same name, and nothing
+ *    written;
+ *  - the prefixed name saves;
+ *  - a package that declares no namespace, and a save naming no package, are
+ *    untouched (the rule is skipped without a namespace, as `defineStack`
+ *    skips it);
+ *  - a package-less publish save the door resolves INTO a namespaced package
+ *    is judged as a save naming that package;
+ *  - a draft save is unchanged, and the publish door still refuses its draft —
+ *    with the same sentence the active door now answers;
+ *  - the per-item publish (`POST /meta/object/:name/publish`), which promoted
+ *    that draft `active` as well, refuses it with the same envelope and
+ *    sentence and promotes nothing, while a prefixed draft still publishes.
+ */
+
+interface Row {
+    id: string;
+    type: string;
+    name: string;
+    organization_id: string | null;
+    package_id: string | null;
+    state: string;
+    metadata: string;
+    checksum?: string;
+    version?: number;
+}
+
+function keyOf(w: Record<string, unknown>) {
+    return `${w.type}|${w.name}|${w.organization_id ?? '__env__'}|${w.state ?? 'active'}|${w.package_id ?? '__nopkg__'}`;
+}
+
+/** Does row `r` satisfy `where` (top-level eq + `$or`)? */
+function matchesMetadataWhere(r: Row, where: Record<string, unknown>): boolean {
+    for (const [k, v] of Object.entries(where)) {
+        if (k === '$or') {
+            const clauses = v as Array<Record<string, unknown>>;
+            if (!clauses.some((c) => matchesMetadataWhere(r, c))) return false;
+            continue;
+        }
+        // `undefined` = "dimension not constrained"; `null` = "must be NULL".
+        if (v === undefined) continue;
+        if (v !== null && typeof v === 'object' && !Array.isArray(v)) {
+            const op = v as Record<string, unknown>;
+            if ('$in' in op) {
+                if (!(op.$in as unknown[]).includes((r as any)[k])) return false;
+                continue;
+            }
+            if ('$ne' in op) {
+                if ((r as any)[k] === op.$ne) return false;
+                continue;
+            }
+        }
+        if ((r as any)[k] !== v) return false;
+    }
+    return true;
+}
+
+const PKG = 'com.v1.rollup';
+const NS = 'rollup';
+/** A package that declares no namespace — legacy-grandfathered. */
+const BARE_PKG = 'com.v1.bare';
+
+function makeStubEngine() {
+    const rows = new Map<string, Row>();
+    let nextId = 0;
+
+    const findRow = (w: Record<string, unknown>): { key: string; row: Row } | null => {
+        if (w.id !== undefined) {
+            for (const [k, r] of rows) if (r.id === w.id) return { key: k, row: r };
+            return null;
+        }
+        for (const [k, r] of rows) if (matchesMetadataWhere(r, w)) return { key: k, row: r };
+        return null;
+    };
+
+    const manifests: Record<string, Record<string, unknown>> = {
+        [PKG]: { id: PKG, namespace: NS },
+        [BARE_PKG]: { id: BARE_PKG },
+    };
+
+    const engine: any = {
+        async findOne(table: string, opts: { where: Record<string, unknown> }) {
+            assertEngineFindOnePredicate(table, opts);
+            if (table !== 'sys_metadata') return null;
+            return findRow(opts.where)?.row ?? null;
+        },
+        async find(table: string, opts: { where: Record<string, unknown>; limit?: number }) {
+            if (table !== 'sys_metadata') return [];
+            const matched = Array.from(rows.values()).filter((r) => matchesMetadataWhere(r, opts.where ?? {}));
+            // The caller's bound, after the filter, by presence (`check:objectql-double-limit`).
+            return typeof opts?.limit === 'number' ? matched.slice(0, opts.limit) : matched;
+        },
+        async insert(table: string, data: Record<string, unknown>) {
+            nextId += 1;
+            if (table !== 'sys_metadata') return { id: `x_${nextId}` };
+            const row = { id: `r_${nextId}`, ...(data as any) } as Row;
+            rows.set(keyOf(data), row);
+            return { id: row.id };
+        },
+        async update(table: string, data: Record<string, unknown>, opts: { where: Record<string, unknown> }) {
+            assertEngineUpdateDispatch(data, opts);
+            if (table !== 'sys_metadata') return { id: null };
+            const found = findRow(opts.where);
+            if (!found) return { id: null };
+            const merged = { ...found.row, ...(data as any) };
+            rows.delete(found.key);
+            rows.set(keyOf(merged), merged);
+            return { id: found.row.id };
+        },
+        async delete(table: string, opts: { where: Record<string, unknown> }) {
+            assertEngineDeleteDispatch(opts);
+            if (table !== 'sys_metadata') return { deleted: 0 };
+            const found = findRow(opts.where);
+            if (!found) return { deleted: 0 };
+            rows.delete(found.key);
+            return { deleted: 1 };
+        },
+        async transaction<T>(cb: (ctx: any, info: { owned: boolean }) => Promise<T>): Promise<T> {
+            return cb(undefined, { owned: true });
+        },
+        registry: {
+            registerItem: () => {},
+            registerObject: () => {},
+            getPackage: (id: string) => (manifests[id] ? { manifest: manifests[id] } : undefined),
+        },
+    };
+    return { engine, rows };
+}
+
+const objectBody = (name: string, label = `Object ${name}`) => ({
+    name,
+    label,
+    // [#8308] Authored OWD — the authoring gate refuses an OWD-less custom object.
+    sharingModel: 'private',
+    fields: {
+        title: { type: 'text', label: 'Title' },
+    },
+});
+
+/** The stored rows for one object name, as `(state, package_id)` pairs. */
+const rowsFor = (rows: Map<string, Row>, name: string) =>
+    Array.from(rows.values())
+        .filter((r) => r.type === 'object' && r.name === name)
+        .map((r) => ({ state: r.state, package_id: r.package_id }));
+
+describe('[#24547 · ADR-0129 D2] the active save door refuses an object without its package namespace prefix', () => {
+    it('refuses an unprefixed object under a namespaced package — NAMESPACE_PREFIX / 422, nothing written', async () => {
+        const { engine, rows } = makeStubEngine();
+        const protocol = new ObjectStackProtocolImplementation(engine);
+
+        const outcome = await protocol.saveMetaItem({
+            type: 'object',
+            name: 'v1_report',
+            item: objectBody('v1_report'),
+            packageId: PKG,
+        }).then(() => 'saved', (e: unknown) => e);
+
+        expect(outcome).toMatchObject({ code: 'NAMESPACE_PREFIX', status: 422 });
+        // The prescription names the rename and the namespace it comes from.
+        expect((outcome as Error).message).toMatch(/^Object 'v1_report' is missing the package namespace prefix\. /);
+        expect((outcome as Error).message).toContain(`Rename it to '${NS}_v1_report'`);
+        // Refused before any write: no row, active or draft, under any package.
+        expect(rowsFor(rows, 'v1_report')).toEqual([]);
+    });
+
+    it('saves the prefixed name under the same package', async () => {
+        const { engine, rows } = makeStubEngine();
+        const protocol = new ObjectStackProtocolImplementation(engine);
+
+        await protocol.saveMetaItem({
+            type: 'object',
+            name: `${NS}_v1_report`,
+            item: objectBody(`${NS}_v1_report`),
+            packageId: PKG,
+        });
+
+        expect(rowsFor(rows, `${NS}_v1_report`)).toEqual([{ state: 'active', package_id: PKG }]);
+    });
+
+    it('control: a package that declares no namespace saves the unprefixed name', async () => {
+        const { engine, rows } = makeStubEngine();
+        const protocol = new ObjectStackProtocolImplementation(engine);
+
+        await protocol.saveMetaItem({
+            type: 'object',
+            name: 'v1_report',
+            item: objectBody('v1_report'),
+            packageId: BARE_PKG,
+        });
+
+        expect(rowsFor(rows, 'v1_report')).toEqual([{ state: 'active', package_id: BARE_PKG }]);
+    });
+
+    it('control: a save naming no package (and resolving to none) saves the unprefixed name', async () => {
+        const { engine, rows } = makeStubEngine();
+        const protocol = new ObjectStackProtocolImplementation(engine);
+
+        await protocol.saveMetaItem({
+            type: 'object',
+            name: 'v1_report',
+            item: objectBody('v1_report'),
+        });
+
+        expect(rowsFor(rows, 'v1_report')).toEqual([{ state: 'active', package_id: null }]);
+    });
+
+    it('judges a package-less publish save against the namespaced package it resolves into', async () => {
+        const { engine, rows } = makeStubEngine();
+        const protocol = new ObjectStackProtocolImplementation(engine);
+        // An active row bound to the namespaced package already holds the
+        // name (stored before this door read the rule), so a save naming no
+        // package writes THAT package's row.
+        await engine.insert('sys_metadata', {
+            type: 'object',
+            name: 'v1_report',
+            organization_id: null,
+            package_id: PKG,
+            state: 'active',
+            metadata: JSON.stringify(objectBody('v1_report')),
+            checksum: 'sha256:stored',
+            version: 1,
+        });
+
+        const outcome = await protocol.saveMetaItem({
+            type: 'object',
+            name: 'v1_report',
+            item: objectBody('v1_report', 'Edited'),
+        }).then(() => 'saved', (e: unknown) => e);
+
+        expect(outcome).toMatchObject({ code: 'NAMESPACE_PREFIX', status: 422 });
+        // The stored row is untouched.
+        const stored = Array.from(rows.values()).find((r) => r.name === 'v1_report');
+        expect(JSON.parse(stored!.metadata).label).toBe('Object v1_report');
+    });
+
+    it('a draft save is unchanged, and the publish door refuses that draft with the sentence the active door answers', async () => {
+        const { engine, rows } = makeStubEngine();
+        const protocol = new ObjectStackProtocolImplementation(engine);
+
+        const activeRefusal = await protocol.saveMetaItem({
+            type: 'object',
+            name: 'v1_report',
+            item: objectBody('v1_report'),
+            packageId: PKG,
+        }).then(() => undefined, (e: Error) => e);
+
+        // The draft save stores, as before — the door that promotes a draft
+        // is the gate it answers to.
+        await protocol.saveMetaItem({
+            type: 'object',
+            name: 'v1_report',
+            item: objectBody('v1_report'),
+            packageId: PKG,
+            mode: 'draft',
+        });
+        expect(rowsFor(rows, 'v1_report')).toEqual([{ state: 'draft', package_id: PKG }]);
+
+        const res = await protocol.publishPackageDrafts({ packageId: PKG } as any);
+        const itemRefusal = await protocol.publishMetaItem({
+            type: 'object',
+            name: 'v1_report',
+            packageId: PKG,
+        }).then(() => undefined, (e: Error) => e);
+
+        expect(res).toMatchObject({ success: false, outcome: 'refused', publishedCount: 0, failedCount: 1 });
+        expect(res.failed[0]).toMatchObject({ type: 'object', name: 'v1_report', code: 'NAMESPACE_PREFIX' });
+        // ONE rule, ONE sentence: the three doors cannot disagree on the
+        // verdict or on what the author is told to do about it.
+        expect(activeRefusal).toBeInstanceOf(Error);
+        expect(itemRefusal).toBeInstanceOf(Error);
+        expect(res.failed[0].error).toBe(activeRefusal!.message);
+        expect(itemRefusal!.message).toBe(activeRefusal!.message);
+        // Nothing went live.
+        expect(rowsFor(rows, 'v1_report')).toEqual([{ state: 'draft', package_id: PKG }]);
+    });
+
+    it('the per-item publish refuses an unprefixed object draft under a namespaced package — NAMESPACE_PREFIX / 422, the draft stays a draft', async () => {
+        const { engine, rows } = makeStubEngine();
+        const protocol = new ObjectStackProtocolImplementation(engine);
+        await protocol.saveMetaItem({
+            type: 'object',
+            name: 'v1_report',
+            item: objectBody('v1_report'),
+            packageId: PKG,
+            mode: 'draft',
+        });
+
+        const outcome = await protocol.publishMetaItem({
+            type: 'object',
+            name: 'v1_report',
+            packageId: PKG,
+        }).then(() => 'published', (e: unknown) => e);
+
+        expect(outcome).toMatchObject({ code: 'NAMESPACE_PREFIX', status: 422 });
+        expect((outcome as Error).message).toMatch(/^Object 'v1_report' is missing the package namespace prefix\. /);
+        expect((outcome as Error).message).toContain(`Rename it to '${NS}_v1_report'`);
+        // Nothing promoted: no active row, the draft untouched.
+        expect(rowsFor(rows, 'v1_report')).toEqual([{ state: 'draft', package_id: PKG }]);
+    });
+
+    it('control: the per-item publish promotes a prefixed object draft under the same package', async () => {
+        const { engine, rows } = makeStubEngine();
+        const protocol = new ObjectStackProtocolImplementation(engine);
+        await protocol.saveMetaItem({
+            type: 'object',
+            name: `${NS}_v1_report`,
+            item: objectBody(`${NS}_v1_report`),
+            packageId: PKG,
+            mode: 'draft',
+        });
+
+        const res = await protocol.publishMetaItem({
+            type: 'object',
+            name: `${NS}_v1_report`,
+            packageId: PKG,
+        });
+
+        expect(res.success).toBe(true);
+        expect(rowsFor(rows, `${NS}_v1_report`)).toContainEqual({ state: 'active', package_id: PKG });
+        expect(rowsFor(rows, `${NS}_v1_report`)).not.toContainEqual({ state: 'draft', package_id: PKG });
+    });
+});