diff --git a/.changeset/7313-object-calendar-record-source.md b/.changeset/7313-object-calendar-record-source.md
new file mode 100644
index 000000000..50d5f4eae
--- /dev/null
+++ b/.changeset/7313-object-calendar-record-source.md
@@ -0,0 +1,36 @@
+---
+'@object-ui/types': minor
+---
+
+`ObjectCalendarSchema` declares the record-source ladder its renderer already
+reads — `data`, `staticData`, `objectName` — on both faces, in the shape
+objectui#6939 landed on `object-map` and `object-gantt` (objectui#7313).
+
+`ObjectCalendar` resolves its records through the shared ladder
+(`resolveRecordSourceConfig` in `@object-ui/core`, called from
+`plugin-calendar/src/ObjectCalendar.tsx`): `data` first, then `staticData`,
+then `objectName`. The published TypeScript interface REQUIRED `objectName` and
+declared neither `data` nor `staticData`; the published Zod mirror did the same.
+So an `object-calendar` node authored on `staticData` — the route the plugin
+page documents twice — rendered correctly and was refused by
+`safeValidateSchema`, and could not be annotated with its own type
+(`TS2741: Property 'objectName' is missing`).
+
+- `objectName` becomes optional on the TypeScript interface and on the mirror
+  in the same stroke; it stays the object-provider key.
+- `data` (`ViewData` / `ViewDataSchema`) and `staticData` (`any[]`) are
+  declared on both faces, spelled exactly as `ObjectGanttSchema` spells them.
+- The member ends in `requireRecordSource('object-calendar')`: a node
+  authoring NONE of the three is refused by name — one root-level issue,
+  `params.code = 'RECORD_SOURCE_REQUIRED'`, the map/gantt message naming
+  `data`, `staticData` and `objectName` — instead of by a missing `objectName`.
+
+**A widening.** A node authoring `staticData` or `data` without `objectName`
+now validates (it always rendered — the read is
+`resolveRecordSourceConfig(schema)`, keyed on the three). Every document that
+validated before still validates: `objectName` alone still parses, an empty
+one included, because presence is `!== undefined`. The one shape the
+refinement refuses (none of the three) was refused before too, at
+`objectName`. The two static-data examples in
+`content/docs/plugins/plugin-calendar.mdx` are now annotated
+`ObjectCalendarSchema` and compile under the doc-snippet gate.
diff --git a/content/docs/plugins/plugin-calendar.mdx b/content/docs/plugins/plugin-calendar.mdx
index afe4ef410..96704cd19 100644
--- a/content/docs/plugins/plugin-calendar.mdx
+++ b/content/docs/plugins/plugin-calendar.mdx
@@ -207,7 +207,9 @@ const schema: ObjectCalendarSchema = {
 ### With Static Data
 
 ```tsx
-const schema = {
+import type { ObjectCalendarSchema } from '@object-ui/types'
+
+const schema: ObjectCalendarSchema = {
   type: 'object-calendar',
   staticData: [
     {
@@ -307,7 +309,9 @@ const objectProviderCalendar: ObjectCalendarSchema = {
 #### Value Provider (Static)
 
 ```tsx
-const valueProviderCalendar = {
+import type { ObjectCalendarSchema } from '@object-ui/types';
+
+const valueProviderCalendar: ObjectCalendarSchema = {
   type: 'object-calendar',
   staticData: [
     { id: 1, title: 'Event 1', date: '2024-01-15' },
diff --git a/packages/types/src/__tests__/object-calendar-record-source-7313.test.ts b/packages/types/src/__tests__/object-calendar-record-source-7313.test.ts
new file mode 100644
index 000000000..1eade8eed
--- /dev/null
+++ b/packages/types/src/__tests__/object-calendar-record-source-7313.test.ts
@@ -0,0 +1,310 @@
+/**
+ * ObjectUI
+ * Copyright (c) 2024-present ObjectStack Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * objectui#7313 — `ObjectCalendarSchema` declares the record-source ladder its
+ * renderer already reads, on both faces, in the shape objectui#6939 landed on
+ * `object-map` / `object-gantt` (PR #7471).
+ *
+ * ## The defect
+ *
+ * `ObjectCalendar` resolves its records through the shared ladder —
+ * `resolveRecordSourceConfig(schema)` in `@object-ui/core`
+ * (`packages/core/src/utils/record-source.ts`): `data`, then `staticData`, then
+ * `objectName`, `null` when none is present. The published interface REQUIRED
+ * `objectName` and declared neither `data` nor `staticData`; the mirror did the
+ * same (no `requireRecordSource`). So the two static-data examples
+ * `content/docs/plugins/plugin-calendar.mdx` teaches rendered correctly, were
+ * refused by `safeValidateSchema`, and could not be annotated with their own
+ * type (`TS2741: Property 'objectName' is missing`).
+ *
+ * Measured on `origin/main` at `91f92768` (identical to the dispatch base
+ * `4dfdcc3c` on both faces), pristine dist, four documents through
+ * `ObjectCalendarSchema.safeParse`:
+ *
+ *     staticData only  -> refused at `objectName` (invalid_type)
+ *     data only        -> refused at `objectName` (invalid_type)
+ *     none of the three-> refused at `objectName` (invalid_type)
+ *     objectName only  -> accepted
+ *
+ * `ObjectGanttSchema` on the same four: accepted / accepted / refused ON THE
+ * REFINEMENT / accepted. This file pins that the calendar now agrees with the
+ * gantt verdict-for-verdict, and WHY each verdict is what it is.
+ *
+ * ## What this file pins — the VALIDATOR and DECLARATION halves
+ *
+ * The render half needs no new pin: the renderer never changed. The read it
+ * performs is pinned off disk below, so a later rewrite of the ladder cannot
+ * leave this declaration describing a read that no longer exists.
+ */
+import { describe, it, expect } from 'vitest';
+import { readFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { dirname, join } from 'node:path';
+
+import { ObjectCalendarSchema, ObjectGanttSchema, safeValidateSchema } from '../zod/index.zod';
+import { BaseSchema } from '../zod/base.zod';
+import type {
+  ObjectCalendarSchema as TsObjectCalendarSchema,
+  ObjectGanttSchema as TsObjectGanttSchema,
+  ObjectKanbanSchema as TsObjectKanbanSchema,
+  ViewData,
+} from '../objectql';
+
+const HERE = dirname(fileURLToPath(import.meta.url));
+const REPO_ROOT = join(HERE, '..', '..', '..', '..');
+const RENDERER = 'packages/plugin-calendar/src/ObjectCalendar.tsx';
+const LADDER = 'packages/core/src/utils/record-source.ts';
+const DOC_PAGE = 'content/docs/plugins/plugin-calendar.mdx';
+
+/* ── Type-level pins (invariant equality, house form) ─────────────────────── */
+
+type Equal< A, B > =
+  (< T >() => T extends A ? 1 : 2) extends (< T >() => T extends B ? 1 : 2) ? true : false;
+type Expect< T extends true > = T;
+/** `Partial< Pick< T, K > >` is assignable to `Pick< T, K >` exactly when `K` is optional on `T`. */
+type IsOptionalKey< T, K extends keyof T > = Partial< Pick< T, K > > extends Pick< T, K > ? true : false;
+
+/**
+ * `objectName` is OPTIONAL and still `string`. Both directions bite: required
+ * again -> `string` is not `string | undefined` -> red; member DELETED -> the
+ * key resolves through `BaseSchema`'s index signature to `any`, and
+ * `Equal< any, … >` is false -> red.
+ */
+export type _CalendarObjectNameIsOptionalString =
+  Expect< Equal< TsObjectCalendarSchema['objectName'], string | undefined > >;
+export type _CalendarObjectNameIsOptionalKey =
+  Expect< IsOptionalKey< TsObjectCalendarSchema, 'objectName' > >;
+
+/**
+ * `data` is DECLARED, optional, and `ViewData` — not `any`. Deleting the member
+ * does NOT fall through to the index signature: it lands on the INHERITED
+ * `BaseSchema.data?: any` (a declared member wins over an index signature), and
+ * `Equal< any, ViewData | undefined >` is false -> red. That is the whole
+ * reason the member is declared here rather than left to the base.
+ */
+export type _CalendarDataIsOptionalViewData =
+  Expect< Equal< TsObjectCalendarSchema['data'], ViewData | undefined > >;
+export type _CalendarDataIsOptionalKey =
+  Expect< IsOptionalKey< TsObjectCalendarSchema, 'data' > >;
+
+/** `staticData` is DECLARED and optional; deleted, it would resolve to `any`. */
+export type _CalendarStaticDataIsOptionalAnyArray =
+  Expect< Equal< TsObjectCalendarSchema['staticData'], any[] | undefined > >;
+export type _CalendarStaticDataIsOptionalKey =
+  Expect< IsOptionalKey< TsObjectCalendarSchema, 'staticData' > >;
+
+/** One concept, one type: the calendar's three keys are the gantt's three keys. */
+export type _CalendarDataMatchesGantt =
+  Expect< Equal< TsObjectCalendarSchema['data'], TsObjectGanttSchema['data'] > >;
+export type _CalendarStaticDataMatchesGantt =
+  Expect< Equal< TsObjectCalendarSchema['staticData'], TsObjectGanttSchema['staticData'] > >;
+export type _CalendarObjectNameMatchesGantt =
+  Expect< Equal< TsObjectCalendarSchema['objectName'], TsObjectGanttSchema['objectName'] > >;
+
+/**
+ * The document the plugin page teaches under "With Static Data". It did not
+ * compile before this card — `objectName` was a required member, and an index
+ * signature cannot rescue a MISSING required key — so this annotation is a real
+ * compile-time pin.
+ */
+export const STATIC_DATA_DOCUMENT: TsObjectCalendarSchema = {
+  type: 'object-calendar',
+  staticData: [{ id: 1, title: 'Team Meeting', startDate: '2024-01-15T10:00:00' }],
+};
+
+/** …and the `data`-authored one, typed against the declared `ViewData`. */
+export const DATA_DOCUMENT: TsObjectCalendarSchema = {
+  type: 'object-calendar',
+  data: { provider: 'value', items: [{ id: 1, title: 'Team Meeting' }] },
+};
+
+/**
+ * CLASS BOUNDARY, recorded without touching it (triage boundary 3 on
+ * objectui#7313): `ObjectKanbanSchema` still REQUIRES `objectName`. Its
+ * renderer reads `schema.data` ahead of the fetch and guards every
+ * `objectName` read, so it carries the same defect class — but that block is
+ * objectui#7322's, and this control only says where the class currently ends.
+ * When a card moves the kanban's `objectName` to optional, this directive is
+ * the line that card deletes.
+ *
+ * `groupBy` is supplied because objectui#7322 made it the required lane key
+ * (and retired `groupField`), so `objectName` is the ONE member this literal
+ * is missing — the directive would otherwise be satisfied by an unrelated
+ * omission and stop saying anything about `objectName`.
+ */
+// @ts-expect-error — objectName is still required on ObjectKanbanSchema (the one deliberate error here)
+export const KANBAN_STILL_REQUIRES_OBJECT_NAME: TsObjectKanbanSchema = {
+  type: 'object-kanban',
+  groupBy: 'status',
+};
+
+/* ── Runtime pins ─────────────────────────────────────────────────────────── */
+
+/**
+ * The four documents the card's verdict table is written over. `data` uses
+ * the value provider — the config `staticData` is folded into, so the two
+ * accepted-without-`objectName` rows exercise different keys but one route.
+ */
+const DOCUMENTS = {
+  staticOnly: { staticData: [{ id: 1, title: 'Team Meeting', startDate: '2024-01-15T10:00:00' }] },
+  dataOnly: { data: { provider: 'value', items: [{ id: 1, title: 'Team Meeting' }] } },
+  none: {},
+  objectOnly: { objectName: 'events' },
+} as const;
+type DocumentName = keyof typeof DOCUMENTS;
+const DOCUMENT_NAMES = Object.keys(DOCUMENTS) as DocumentName[];
+
+/** The refinement's message, spelled exactly as the map/gantt members emit it. */
+const REFUSAL_MESSAGE = '`object-calendar` has no record source: declare one of `data`, `staticData` or `objectName`';
+
+function withType(type: string, name: DocumentName): Record<string, unknown> {
+  return { type, ...DOCUMENTS[name] };
+}
+
+/** Report the issues rather than `false`, so a red run says what broke. */
+function reasons(schema: unknown): string[] {
+  const r = safeValidateSchema(schema);
+  return r.success ? [] : r.error.issues.map((i) => `${i.path.join('.')}: ${i.message}`);
+}
+
+describe('objectui#7313 — the four documents, through the member and the published entry point', () => {
+  it('`staticData` alone validates — the route the plugin page documents twice', () => {
+    const doc = withType('object-calendar', 'staticOnly');
+    expect('objectName' in doc).toBe(false);
+    expect(ObjectCalendarSchema.safeParse(doc).success).toBe(true);
+    expect(reasons(doc)).toEqual([]);
+  });
+
+  it('`data` alone validates', () => {
+    const doc = withType('object-calendar', 'dataOnly');
+    expect(ObjectCalendarSchema.safeParse(doc).success).toBe(true);
+    expect(reasons(doc)).toEqual([]);
+  });
+
+  it('`objectName` alone still validates — the accept set only WIDENED, an empty name included', () => {
+    expect(ObjectCalendarSchema.safeParse(withType('object-calendar', 'objectOnly')).success).toBe(true);
+    expect(reasons(withType('object-calendar', 'objectOnly'))).toEqual([]);
+    // Presence is `!== undefined`, not the renderer's truthiness: `objectName:
+    // ''` validated before this card (a required `z.string()` accepts '') and
+    // must still validate, or the change would narrow something.
+    expect(ObjectCalendarSchema.safeParse({ type: 'object-calendar', objectName: '' }).success).toBe(true);
+  });
+
+  it('NONE of the three is refused ON THE REFINEMENT — by name, not at `objectName`', () => {
+    const result = ObjectCalendarSchema.safeParse(withType('object-calendar', 'none'));
+    expect(result.success).toBe(false);
+    if (result.success) return;
+    // Exactly one issue, and it is the refinement's — not the `objectName`
+    // key-level failure this document used to get, which would make this case
+    // green for the wrong reason.
+    expect(result.error.issues).toHaveLength(1);
+    const issue = result.error.issues[0];
+    expect(issue.code).toBe('custom');
+    expect(issue.path).toEqual([]);
+    expect((issue as { params?: { code?: string } }).params?.code).toBe('RECORD_SOURCE_REQUIRED');
+    expect(issue.message).toBe(REFUSAL_MESSAGE);
+  });
+
+  it('…and the published entry point refuses it too, with the same message', () => {
+    const r = safeValidateSchema({ type: 'object-calendar' });
+    expect(r.success).toBe(false);
+    if (r.success) return;
+    expect(r.error.issues.map((i) => i.message)).toContain(REFUSAL_MESSAGE);
+  });
+});
+
+describe('objectui#7313 — parity with `ObjectGanttSchema`, verdict for verdict', () => {
+  const verdicts = (member: { safeParse: (v: unknown) => { success: boolean } }, type: string) =>
+    DOCUMENT_NAMES.map((name) => member.safeParse(withType(type, name)).success);
+
+  it('the two members agree on all four documents, and the vector is not vacuous', () => {
+    const calendar = verdicts(ObjectCalendarSchema, 'object-calendar');
+    const gantt = verdicts(ObjectGanttSchema, 'object-gantt');
+    expect(calendar).toEqual(gantt);
+    // Non-vacuity: a pair that accepted everything, or refused everything,
+    // would "agree" too. The vector must carry BOTH verdicts, and in the
+    // positions the card's table names.
+    expect(new Set(calendar).size).toBe(2);
+    expect(calendar).toEqual([true, true, false, true]);
+  });
+
+  it('the refusal is the same issue on both members, differing only in the member name', () => {
+    const c = ObjectCalendarSchema.safeParse({ type: 'object-calendar' });
+    const g = ObjectGanttSchema.safeParse({ type: 'object-gantt' });
+    expect(c.success).toBe(false);
+    expect(g.success).toBe(false);
+    if (c.success || g.success) return;
+    const strip = (m: string) => m.replace(/`object-(calendar|gantt)`/, '`object-MEMBER`');
+    expect(strip(c.error.issues[0].message)).toBe(strip(g.error.issues[0].message));
+    expect((c.error.issues[0] as { params?: { code?: string } }).params?.code)
+      .toBe((g.error.issues[0] as { params?: { code?: string } }).params?.code);
+  });
+
+  it('control: `BaseSchema` accepts all four — the refusal above is the refinement\'s, not the base\'s', () => {
+    // `BaseSchema` is `.passthrough()` with no record-source refinement, so it
+    // takes every one of these documents. Only the member refuses `none`.
+    for (const name of DOCUMENT_NAMES) {
+      expect(BaseSchema.safeParse(withType('object-calendar', name)).success).toBe(true);
+    }
+  });
+});
+
+describe('objectui#7313 — `data` and `staticData` are DECLARED, not passthrough holes', () => {
+  it('a wrong-typed `data` is refused AT the key; `objectName` is supplied so only `data` is under test', () => {
+    const r = ObjectCalendarSchema.safeParse({ type: 'object-calendar', objectName: 'events', data: 'nope' });
+    expect(r.success).toBe(false);
+    if (!r.success) expect(r.error.issues.map((i) => i.path[0])).toContain('data');
+    expect(ObjectCalendarSchema.safeParse({ type: 'object-calendar', objectName: 'events', data: { provider: 'object', object: 'events' } }).success).toBe(true);
+  });
+
+  it('a wrong-typed `staticData` is refused AT the key', () => {
+    const r = ObjectCalendarSchema.safeParse({ type: 'object-calendar', objectName: 'events', staticData: 'nope' });
+    expect(r.success).toBe(false);
+    if (!r.success) expect(r.error.issues.map((i) => i.path[0])).toContain('staticData');
+  });
+
+  it('control: `BaseSchema` alone would have admitted both — delete either member and its refusal becomes this', () => {
+    expect(BaseSchema.safeParse({ type: 'object-calendar', objectName: 'events', data: 'nope' }).success).toBe(true);
+    expect(BaseSchema.safeParse({ type: 'object-calendar', objectName: 'events', staticData: 'nope' }).success).toBe(true);
+  });
+
+  it('the object stayed an object: `.shape` is exposed, with the three keys in it and `objectName` optional', () => {
+    // zod 4 attaches a refinement in place; had it wrapped the object, `.shape`
+    // would be gone and the parity census in `zod-mirror-parity.test.ts` would
+    // read the pair as vacuous.
+    const shape = (ObjectCalendarSchema as unknown as { shape: Record<string, { safeParse: (v: unknown) => { success: boolean } }> }).shape;
+    expect(Object.keys(shape)).toEqual(expect.arrayContaining(['objectName', 'data', 'staticData']));
+    expect(shape.objectName.safeParse(undefined).success).toBe(true);
+    expect(shape.objectName.safeParse(5).success).toBe(false);
+  });
+});
+
+describe('objectui#7313 — the declaration names a live read, in the declared order', () => {
+  it('the renderer resolves its records through the shared ladder', () => {
+    const src = readFileSync(join(REPO_ROOT, RENDERER), 'utf8');
+    expect(src, `${RENDERER} no longer calls resolveRecordSourceConfig(schema)`).toContain('resolveRecordSourceConfig(schema)');
+  });
+
+  it('the ladder reads `data`, then `staticData`, then `objectName` — the order the refinement rests on', () => {
+    const src = readFileSync(join(REPO_ROOT, LADDER), 'utf8');
+    const body = src.slice(src.indexOf('export function resolveRecordSourceConfig'));
+    const data = body.indexOf('if (schema.data)');
+    const staticData = body.indexOf('if (schema.staticData)');
+    const objectName = body.indexOf('if (schema.objectName)');
+    expect(data).toBeGreaterThan(-1);
+    expect(staticData).toBeGreaterThan(data);
+    expect(objectName).toBeGreaterThan(staticData);
+  });
+
+  it('the two static-data examples on the plugin page carry the annotation (the card\'s completion signal)', () => {
+    const page = readFileSync(join(REPO_ROOT, DOC_PAGE), 'utf8');
+    expect(page).toContain("const schema: ObjectCalendarSchema = {\n  type: 'object-calendar',\n  staticData: [");
+    expect(page).toContain("const valueProviderCalendar: ObjectCalendarSchema = {\n  type: 'object-calendar',\n  staticData: [");
+    // No bare `object-calendar` literal is left unannotated on the page.
+    expect(page.match(/^const \w+ = \{\n\s+type: 'object-calendar'/gm)).toBeNull();
+  });
+});
diff --git a/packages/types/src/objectql.ts b/packages/types/src/objectql.ts
index 1db955cf2..33212f3bd 100644
--- a/packages/types/src/objectql.ts
+++ b/packages/types/src/objectql.ts
@@ -2671,8 +2671,33 @@ export interface ObjectGanttSchema extends BaseSchema {
  */
 export interface ObjectCalendarSchema extends BaseSchema {
   type: 'object-calendar';
-  /** ObjectQL object name */
-  objectName: string;
+  /**
+   * ObjectQL object name — the THIRD record source `getDataConfig` resolves,
+   * after {@link ObjectCalendarSchema.data} and {@link ObjectCalendarSchema.staticData}
+   * (`plugin-calendar/src/ObjectCalendar.tsx`).
+   *
+   * Optional since objectui#7313 (the objectui#6939 shape): a calendar authored
+   * on inline rows never reads this key, and requiring it refused the two
+   * documented static-data examples that draw correctly. The requirement the
+   * renderer really has — at least one of
+   * `data`, `staticData`, `objectName` present — lives on the mirror as a
+   * refinement (`requireRecordSource` in `zod/objectql.zod.ts`), so the
+   * published declaration and the published validator say the same thing.
+   */
+  objectName?: string;
+  /**
+   * Data source configuration. Read FIRST by `getDataConfig` — `if
+   * (schema.data) return schema.data;` — ahead of `staticData` / `objectName`.
+   *
+   * Declared by objectui#7313, in the same stroke as the mirror's `data`: until
+   * then the read landed on `BaseSchema`'s index signature on this side and
+   * on `.passthrough()` on the mirror's, so the record source the resolver
+   * prefers was the one neither face named. Same type as
+   * {@link ObjectMapSchema.data}.
+   */
+  data?: ViewData;
+  /** Inline records, wrapped into a `{ provider: 'value' }` config by `getDataConfig`. */
+  staticData?: any[];
   /** Field for event start */
   startDateField?: string;
   /** Field for event end */
diff --git a/packages/types/src/zod/objectql.zod.ts b/packages/types/src/zod/objectql.zod.ts
index 14209c542..d9dbffe7f 100644
--- a/packages/types/src/zod/objectql.zod.ts
+++ b/packages/types/src/zod/objectql.zod.ts
@@ -620,7 +620,7 @@ export const ObjectMapConfigSchema = z.object({
  * directory and would demand a registered TS counterpart for it.
  */
 const RECORD_SOURCE_KEYS = ['data', 'staticData', 'objectName'] as const;
-function requireRecordSource(type: 'object-map' | 'object-gantt') {
+function requireRecordSource(type: 'object-map' | 'object-gantt' | 'object-calendar') {
   return (
     schema: Partial<Record<(typeof RECORD_SOURCE_KEYS)[number], unknown>>,
     ctx: z.core.$RefinementCtx,
@@ -857,15 +857,31 @@ export const ObjectGanttSchema = BaseSchema.extend({
 
 /**
  * ObjectCalendar Schema
+ *
+ * `objectName` is OPTIONAL and the member ends in `requireRecordSource`
+ * (objectui#7313, the objectui#6939 shape): the renderer resolves its records
+ * through the shared ladder (`resolveRecordSourceConfig` in
+ * `@object-ui/core`, `plugin-calendar/src/ObjectCalendar.tsx`) — `data`, then
+ * `staticData`, then `objectName` — so a calendar authored on inline rows never
+ * reads the object name, and the two static-data examples the plugin page
+ * documents drew correctly and were refused here. `data` and `staticData` are
+ * declared for the first time in the same stroke: they are the FIRST and SECOND
+ * reads of that resolver and were undeclared on both faces (surviving on
+ * `BaseSchema`'s index signature and on `.passthrough()`), which would have
+ * left the refinement naming keys this mirror had never heard of. Both are
+ * spelled exactly as `ObjectGanttSchema` above spells them, so the members'
+ * record sources cannot fork.
  */
 export const ObjectCalendarSchema = BaseSchema.extend({
   type: z.literal('object-calendar'),
-  objectName: z.string().describe('ObjectQL object name'),
+  objectName: z.string().optional().describe('ObjectQL object name — the THIRD record source getDataConfig resolves, after data and staticData; one of the three must be present (objectui#7313)'),
+  data: ViewDataSchema.optional().describe('Data source configuration — read FIRST by getDataConfig; undeclared on either face until objectui#7313'),
+  staticData: z.array(z.any()).optional().describe('Inline records, wrapped into a { provider: value } data config — read SECOND by getDataConfig'),
   startDateField: z.string().optional().describe('Start date field'),
   endDateField: z.string().optional().describe('End date field'),
   titleField: z.string().optional().describe('Title field'),
   defaultView: z.enum(['month', 'week', 'day']).optional().describe("Default view — 'month' | 'week' | 'day', the renderer's rendered set ('agenda' was retired: objectui#5784)"),
-});
+}).superRefine(requireRecordSource('object-calendar'));
 
 /**
  * ObjectKanban Schema