@@ -0,0 +1,14 @@
+---
+'@object-ui/types': patch
+'@object-ui/plugin-detail': patch
+'@object-ui/react': patch
+---
+
+feat(types): a related list's `filter` and its add-picker `filter` take a view filter's any-of group `{ or: [...] }`, as the spec carriers do
+
+Clause-②: yes (widening)
+Metadata-protocol: none
+
+`RecordRelatedListComponentProps.filter` and `.add.picker.filter` in `@object-ui/types` are now `ViewFilterElement[]` (a flat rule or an any-of group `{ or: [rule, ...] }`, from `@objectstack/spec/ui`), the element the protocol's `RecordRelatedListProps` already declares for both keys. The props the related-list renderer hands those values to move with them: `RelatedListProps.filter` and `RelatedListProps.add.picker.filter` in `@object-ui/plugin-detail`, and `ResolveRelatedRecordActionsInput.filter` in `@object-ui/react`. Every value these types accepted before is still accepted; a nested group or a group of tuples is still refused by `tsc`, as the protocol's parse refuses it.
+
+Types only: no runtime code changes. The related list and its picker lower the group through `@object-ui/core`'s `toFilterNode`, which the console reader change for the any-of group teaches to read it.
@@ -49,7 +49,7 @@ import {
 } from 'lucide-react';
 import type { LucideIcon } from 'lucide-react';
 import type { DataSource, FieldMetadata } from '@object-ui/types';
-import type { ViewFilterRule } from '@objectstack/spec/ui';
+import type { ViewFilterElement } from '@objectstack/spec/ui';
 import { getCellRenderer, resolveCellRendererType, RecordPickerDialog, deriveLookupColumns, MaskedCellRenderer, RecordHoverCard } from '@object-ui/fields';
 import {
   buildExpandFields,
@@ -142,16 +142,19 @@ export interface RelatedListProps {
    * insert (e.g. the AI-seat cap) surface as an inline error.
    *
    * `picker.filter` restricts which records the dialog offers, and is typed as
-   * the spec's own `ViewFilterRule[]` rather than `any` (#3831): it goes to
+   * the spec's own `ViewFilterElement[]` rather than `any` (#3831): it goes to
    * `RecordPickerDialog`'s `baseFilter` VERBATIM, so the authored vocabulary is
    * the one enforced — a looser type here is where a wrong shape would hide.
+   * The element is a flat rule or an any-of group `{ or: [rule, ...] }`
+   * (objectstack#28020, #28462); the dialog lowers both through
+   * `toFilterNodeSafely`.
    */
   add?: {
     picker: {
       object: string;
       valueField?: string;
       labelField?: string;
-      filter?: ViewFilterRule[];
+      filter?: ViewFilterElement[];
     };
     linkField?: string;
     label?: string;
@@ -255,13 +258,14 @@ export interface RelatedListProps {
    * for the list's own scope).
    *
    * Two shapes arrive, both produced by our own layers: the spec vocabulary
-   * (`ViewFilterRule[]`) as authored, and an ObjectQL AST node as composed by
+   * (`ViewFilterElement[]`: flat rules and any-of `{ or }` groups,
+   * objectstack#28462) as authored, and an ObjectQL AST node as composed by
    * `ElementDataSourceGate` (which ANDs component/view/binding filters through
    * `mergeFilterNodes` before this component ever sees them). Both are lowered
    * here through that same single sink — the repo's one filter→wire exit — so no
    * second conversion dialect appears.
    */
-  filter?: ViewFilterRule[] | FilterNode;
+  filter?: ViewFilterElement[] | FilterNode;
   /**
    * Enable text filtering. The box keeps a row when a column the list shows
    * contains the term; a masked column (a `password` / `secret` field, or any
 
@@ -0,0 +1,78 @@
+/**
+ * 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.
+ */
+
+/**
+ * objectstack#28462 — the props `record:related_list` hands its `filter` and
+ * `add.picker.filter` to take the contract's filter-list element (a flat rule
+ * or an any-of group `{ or: [rule, ...] }`), as the `@object-ui/types` face
+ * does, so the renderer passes the authored value through without a cast.
+ *
+ * Three declarations carry the value on its way to the wire and must move
+ * together: `RecordRelatedListComponentProps` (the authoring face),
+ * `RelatedListProps` here, and `@object-ui/react`'s
+ * `ResolveRelatedRecordActionsInput.filter` (the resolved list filter the
+ * renderer hands the host for "View all"). Widening the face alone is a TS2322
+ * in `renderers/record-related-list.tsx` (measured on `main` `4bc963ca`).
+ *
+ * Type-level only: compiled by `tsc -p tsconfig.test.json` (this package's
+ * `type-check`), erased by vitest; the `it` below only keeps vitest from
+ * reporting an empty file. Lowering the group to an `or` node is
+ * `@object-ui/core`'s `toFilterNode` (objectstack#28370), not pinned here.
+ */
+
+import { describe, it, expect } from 'vitest';
+import type { ViewFilterElement } from '@objectstack/spec/ui';
+import type { RecordRelatedListComponentProps } from '@object-ui/types';
+import type { FilterNode } from '@object-ui/core';
+import type { ResolveRelatedRecordActionsInput } from '@object-ui/react';
+import type { RelatedListProps } from '../RelatedList';
+
+/** Invariant type equality. `A extends B` is NOT this: `never` and `any` pass that. */
+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;
+
+// @ts-expect-error objectstack#28462 — `Expect` must refuse `false`, or every leg below is vacuous.
+type _ExpectRefusesFalse = Expect<false>;
+
+/** The list's own scope: the element array as authored, or the AST node the data-source gate composes. */
+export type _ListFilter = Expect<Equal<RelatedListProps['filter'], ViewFilterElement[] | FilterNode | undefined>>;
+
+/** The picker's filter: the element array, passed to `RecordPickerDialog`'s `baseFilter` verbatim. */
+export type _PickerFilter = Expect<
+  Equal<NonNullable<RelatedListProps['add']>['picker']['filter'], ViewFilterElement[] | undefined>
+>;
+
+/** The resolved list filter the renderer hands the host carries the same elements. */
+export type _ActionsInputFilter = Expect<
+  Equal<ResolveRelatedRecordActionsInput['filter'], ViewFilterElement[] | FilterNode | undefined>
+>;
+
+/** The authoring face flows into all three with no cast — what the renderer does. */
+export function _flowsWithoutCast(authored: RecordRelatedListComponentProps): unknown[] {
+  const toList: RelatedListProps['filter'] = authored.filter;
+  const toPicker: NonNullable<RelatedListProps['add']>['picker']['filter'] = authored.add?.picker.filter;
+  const toHost: ResolveRelatedRecordActionsInput['filter'] = authored.filter;
+  return [toList, toPicker, toHost];
+}
+
+/** The card's example compiles on the component's own prop. */
+export const _group: RelatedListProps['filter'] = [
+  {
+    or: [
+      { field: 'status', operator: 'equals', value: 'open' },
+      { field: 'completed_at', operator: 'greater_than', value: '{7_days_ago}' },
+    ],
+  },
+];
+
+describe('objectstack#28462 — RelatedList filter props take the { or } group', () => {
+  it('is a type-level pin (see the header); the module loaded', () => {
+    expect(_group).toHaveLength(1);
+  });
+});
@@ -39,7 +39,7 @@
 
 import React, { createContext, useContext } from 'react';
 import type { FilterNode } from '@object-ui/core';
-import type { ViewFilterRule } from '@objectstack/spec/ui';
+import type { ViewFilterElement } from '@objectstack/spec/ui';
 
 /** A child-object action surfaced in a related list's row menu. */
 export interface RelatedRowActionDef {
@@ -171,8 +171,11 @@ export interface ResolveRelatedRecordActionsInput {
    * ({@link RelatedRecordHandlers.onViewAll}): it scopes that destination by
    * this filter too, or offers none. Absent means the list has no filter of
    * its own; it does not mean "unknown".
+   *
+   * Its elements are the list's: flat rules or any-of `{ or }` groups
+   * (objectstack#28462).
    */
-  filter?: ViewFilterRule[] | FilterNode;
+  filter?: ViewFilterElement[] | FilterNode;
 }
 
 export interface RelatedRecordActionsValue {
 
@@ -64,7 +64,7 @@ import { fileURLToPath } from 'node:url';
 import { dirname, join } from 'node:path';
 import type { z } from 'zod';
 import { RecordRelatedListProps } from '@objectstack/spec/ui';
-import type { ViewFilterOrGroup, ViewFilterRule } from '@objectstack/spec/ui';
+import type { ViewFilterElement, ViewFilterOrGroup, ViewFilterRule } from '@objectstack/spec/ui';
 import type { RecordRelatedListComponentProps } from '../record-components';
 
 /* ── Type-level legs (compiled by `tsc -p tsconfig.test.json`, erased by vitest) ── */
@@ -95,26 +95,21 @@ type SpecPickerFilter = NonNullable<z.input<typeof RecordRelatedListProps>['add'
  * expectation comes from the protocol rather than from this file.
  */
 /**
- * objectstack#28020: the contract's element is now a flat rule OR an any-of
- * group (`{ or: [rule, ...] }`), and the group is `[PLANNED — not yet
- * rendered]` there: the related list's own reader (`@object-ui/plugin-detail`)
- * types and lowers flat rules only. So this face carries the contract MINUS
- * the group until the console reads it (objectstack#28370), and the two legs
- * below hold exactly that gap — widen this face and the second leg's
- * companion together, never one alone.
+ * objectstack#28020 put an any-of group (`{ or: [rule, ...] }`) beside the flat
+ * rule in the contract's element, and objectstack#28462 widened this face to
+ * carry it, so the face is the contract again — no gap is withheld.
  */
-type FlatRulesOf<F extends readonly unknown[] | undefined> = Exclude<NonNullable<F>[number], ViewFilterOrGroup>[] | undefined;
-export type _MirrorAgreesWithTheContract = Expect<Equal<MirrorPickerFilter, FlatRulesOf<SpecPickerFilter>>>;
-/** …and the contract does carry the group the face withholds — so the gap is the group and nothing else. */
-export type _TheContractAlsoTakesTheGroup = Expect<Equal<NonNullable<SpecPickerFilter>[number], ViewFilterRule | ViewFilterOrGroup>>;
+export type _MirrorAgreesWithTheContract = Expect<Equal<MirrorPickerFilter, SpecPickerFilter>>;
+/** …and the contract's element is exactly the rule or the group, so the pair cannot agree on something looser. */
+export type _TheContractTakesRuleOrGroup = Expect<Equal<NonNullable<SpecPickerFilter>[number], ViewFilterRule | ViewFilterOrGroup>>;
 
 /**
- * …and the shape they agree on is the rule ARRAY. Stated separately from the
+ * …and the shape they agree on is the element ARRAY (rule or `{ or }` group). Stated separately from the
  * derivation above so a spec that loosened its own key could not make the pair
  * agree on nothing — that would satisfy the leg above while putting `unknown`
  * back on the authoring face.
  */
-export type _AndThatShapeIsTheRuleArray = Expect<Equal<MirrorPickerFilter, ViewFilterRule[] | undefined>>;
+export type _AndThatShapeIsTheRuleArray = Expect<Equal<MirrorPickerFilter, ViewFilterElement[] | undefined>>;
 
 // @ts-expect-error objectui#9964 — the PRE-FIX declaration, asserted to be WRONG: `unknown` must not satisfy this pin. This directive going unused (TS2578) means the mirror went back to `unknown`.
 type _UnknownIsNotTheContract = Expect<Equal<MirrorPickerFilter, unknown>>;
@@ -139,9 +134,11 @@ const CASES: readonly Case[] = [
   // The consumer's own prop type, satisfied straight from the authoring face.
   // This is the TS2322 the four `(schema as any).add` casts were hiding.
   {
-    what: 'the declared filter is assignable to the consumer’s `ViewFilterRule[]`',
+    // objectstack#28462 moved the consumer's prop to the contract's element
+    // (`ViewFilterElement[]`, rule or `{ or }` group) together with this face.
+    what: 'the declared filter is assignable to the consumer’s `ViewFilterElement[]`',
     rejected: false,
-    code: `const rules: ViewFilterRule[] | undefined = block.add?.picker.filter; void rules;`,
+    code: `const rules: ViewFilterElement[] | undefined = block.add?.picker.filter; void rules;`,
   },
   // ── What the tightened face must now REFUSE ───────────────────────────────
   {
@@ -223,7 +220,7 @@ function erroringLines(preamble: string): Set<number> {
 
 const IMPORTS =
   `import type { RecordRelatedListComponentProps } from '${MIRROR_IMPORT}';\n` +
-  `import type { ViewFilterRule } from '@objectstack/spec/ui';\n`;
+  `import type { ViewFilterElement, ViewFilterRule } from '@objectstack/spec/ui';\n`;
 
 /** The real mirror, under the name the cases annotate against. */
 const REAL_PREAMBLE =
@@ -270,7 +267,7 @@ describe('objectui#9964 — the mirror declares the contract’s rule array', ()
  * and prove nothing about this change on their own.
  *
  *   0     — the assignability the four `as any` casts were hiding: TS2322 with
- *           `unknown`, clean with the rule array.
+ *           `unknown`, clean with the element array.
  *   1,2,3 — the three wrong shapes: `unknown` accepts all of them.
  *   4     — the canonical form: accepted on both legs (the narrowing is not too
  *           narrow, which is the half a rejection-only pin cannot state).