@@ -0,0 +1,10 @@
+---
+'@objectstack/sdui-parser': minor
+---
+
+`@objectstack/sdui-parser` now reads one base-prop list, ported from objectui's `SDUI_BASE_PROPS` at the console pin `db11afd4967c` (objectui#11008, #11044). Both `validateTree` and the generated JSX types (`generateDts`'s `SduiBaseProps`) are driven by it.
+
+- On every node, whatever the component declares: `bind`, `hidden`, `visibleWhen`, `hiddenOn`, `testId` are newly accepted. They no longer draw `unknown-prop`, and the generated types accept them as attributes.
+- Only on a type whose registration declares no input of that name: `name`, `label`, `description`, `placeholder`, `data`, `ariaLabel` are newly accepted. A type that declares one keeps its declared type check and its declared attribute type; its generated interface `Omit`s that key from `SduiBaseProps`.
+
+Effect for consumers: `os validate` stops warning `unknown-prop` on those keys, and a `.tsx` page that authors them now type-checks against `generateDts` output where it was a TypeScript error before. Measured on the tracked `sdui.manifest.json` (107 components), no component declares any of the five every-node keys, and every declared where-undeclared key is checked as before, so no diagnostic of error severity is removed for that manifest. The wider type surface is why this is a minor, not a patch.
@@ -0,0 +1,84 @@
+/**
+ * The base-prop list, ported in lockstep from objectui (objectui#11008 added
+ * `bind` / `hidden`; objectui#11044 made ONE list with an `every-node` and a
+ * `where-undeclared` scope) at the console pin `db11afd4967c`.
+ *
+ * Three facts, kept apart:
+ *  1. every `every-node` member draws no `unknown-prop`;
+ *  2. a `where-undeclared` member draws none where the type declares no input
+ *     of that name;
+ *  3. a `where-undeclared` member the type DECLARES keeps its declared type
+ *     check (the reason it is not `every-node`).
+ * Measured on the tracked `sdui.manifest.json`: no component declares any of
+ * the five newly-`every-node` keys, so no declared type check moves.
+ */
+import { describe, expect, it } from 'vitest';
+import { generateDts, manifestFromConfigs, validateTree } from '../index.js';
+import { SDUI_BASE_PROPS } from '../validate.js';
+import type { Manifest, SchemaElement } from '../types.js';
+
+const manifest: Manifest = manifestFromConfigs([
+  { type: 'leaf', namespace: 'ui', inputs: [{ name: 'content', type: 'string' }] },
+  // `label` declared as a string, the `badge` / `button` shape
+  { type: 'labelled', namespace: 'ui', inputs: [{ name: 'label', type: 'string' }] },
+]);
+
+const codes = (node: SchemaElement): string[] =>
+  validateTree(node, manifest).diagnostics.map((d) => d.code);
+
+const EVERY_NODE = [
+  'id', 'className', 'style', 'visible', 'visibleWhen', 'visibleOn', 'hidden',
+  'hiddenOn', 'disabled', 'disabledOn', 'bind', 'testId', 'children',
+];
+// `type` is the one `every-node` entry with no attribute form: on a node it
+// IS the tag, so a node cannot carry it without being the component under test.
+// It is pinned through the list below, not through `validateTree`.
+const WHERE_UNDECLARED = ['name', 'label', 'description', 'placeholder', 'data', 'ariaLabel'];
+
+describe('base props — one list, two scopes (objectui#11008, #11044)', () => {
+  it.each(EVERY_NODE)('every-node `%s` draws no unknown-prop', (key) => {
+    const node = { type: 'leaf', [key]: key === 'children' ? [] : 'x' } as SchemaElement;
+    expect(codes(node)).not.toContain('unknown-prop');
+  });
+
+  it.each(WHERE_UNDECLARED)('undeclared `%s` draws no unknown-prop', (key) => {
+    expect(codes({ type: 'leaf', [key]: 'x' } as SchemaElement)).toEqual([]);
+  });
+
+  it('a DECLARED where-undeclared key keeps its type check', () => {
+    const diags = validateTree({ type: 'labelled', label: 5 } as SchemaElement, manifest).diagnostics;
+    expect(diags.map((d) => d.code)).toEqual(['type-mismatch']);
+    expect(validateTree({ type: 'labelled', label: 'ok' } as SchemaElement, manifest).diagnostics).toEqual([]);
+  });
+
+  it('the list is the 20 entries, `type` alone having no attribute type', () => {
+    expect(SDUI_BASE_PROPS.map((p) => p.name)).toEqual(['type', ...EVERY_NODE, ...WHERE_UNDECLARED]);
+    expect(SDUI_BASE_PROPS.filter((p) => p.tsType === null).map((p) => p.name)).toEqual(['type']);
+    expect(SDUI_BASE_PROPS.filter((p) => p.scope === 'every-node').map((p) => p.name)).toEqual(['type', ...EVERY_NODE]);
+  });
+
+  it('a non-base key is still unknown', () => {
+    expect(codes({ type: 'leaf', nonsense: 1 } as SchemaElement)).toEqual(['unknown-prop']);
+  });
+});
+
+describe('generateDts — `SduiBaseProps` is emitted from the same list', () => {
+  const dts = generateDts(manifest);
+  const emitted = /export interface SduiBaseProps \{\n([\s\S]*?)\n\}/.exec(dts)?.[1].split('\n') ?? [];
+
+  it('carries every list entry that has an attribute type, in list order, and nothing else', () => {
+    expect(emitted).toEqual(
+      SDUI_BASE_PROPS.filter((p) => p.tsType !== null).map((p) => `  ${p.name}?: ${p.tsType};`),
+    );
+    expect(emitted).toContain('  bind?: string;');
+    expect(emitted).toContain('  hidden?: boolean;');
+  });
+
+  it('a component extends the whole base when it declares no base attribute', () => {
+    expect(dts).toContain('export interface LeafProps extends SduiBaseProps {');
+  });
+
+  it('a component that declares a base attribute Omits exactly that one from the base', () => {
+    expect(dts).toContain('export interface LabelledProps extends Omit<SduiBaseProps, "label"> {\n  label?: string;\n}');
+  });
+});
@@ -124,7 +124,7 @@ describe('generateDts publishes the html tier into JSX.IntrinsicElements', () =>
     const dts = generateDts(published);
     expect(dts).toContain('"p": PProps;');
     expect(dts).toContain('"a": AProps;');
-    expect(dts).toContain('export interface AProps extends SduiBaseProps {\n  className?: string;\n  href?: string;\n}');
+    expect(dts).toContain('export interface AProps extends Omit<SduiBaseProps, "className"> {\n  className?: string;\n  href?: string;\n}');
     expect(dts).toContain('"flex": FlexProps;');
   });
 });
@@ -10,6 +10,26 @@
 
 import type { Manifest, ManifestComponent, ManifestInput, ManifestInputType } from './types.js';
 import { inputTypeArms } from './input-type.js';
+import { SDUI_BASE_PROPS } from './validate.js';
+
+/**
+ * `SduiBaseProps`, emitted from {@link SDUI_BASE_PROPS} — the list
+ * `validateTree` reads — so the generated types and the validator cannot
+ * disagree about a base prop (objectui#11044). ⛔ Never a second hand-kept
+ * copy of the list here: that is how this interface came to refuse `bind` and
+ * `hidden` after the validator accepted them.
+ */
+const emitBaseProps = (): string =>
+  `export interface SduiBaseProps {\n${SDUI_BASE_PROPS.filter((prop) => prop.tsType !== null)
+    .map((prop) => `  ${prop.name}?: ${prop.tsType};`)
+    .join('\n')}\n}`;
+
+/**
+ * The attributes `SduiBaseProps` carries — every entry of the list but `type`,
+ * whatever its scope. A declared input of the same name outranks each of them
+ * in the generated types (objectui#11044, objectui#11075).
+ */
+const BASE_ATTRIBUTES = new Set(SDUI_BASE_PROPS.filter((prop) => prop.tsType !== null).map((prop) => prop.name));
 
 export interface CodegenOptions {
   /** include a self-contained minimal JSX namespace so the d.ts type-checks
@@ -38,16 +58,7 @@ export function generateDts(manifest: Manifest, options: CodegenOptions = {}): s
   return `// AUTO-GENERATED by @object-ui/sdui-parser — DO NOT EDIT.
 // Source of truth: ComponentRegistry inputs (ADR-0080 §3). Regenerate via codegen.
 
-export interface SduiBaseProps {
-  id?: string;
-  className?: string;
-  style?: Record<string, unknown>;
-  visible?: boolean;
-  visibleOn?: string;
-  disabled?: boolean;
-  disabledOn?: string;
-  children?: unknown;
-}
+${emitBaseProps()}
 
 ${interfaces}
 
@@ -70,13 +81,31 @@ export {};
  * those arms only (objectui#3832): the old test was `i.type !== 'slot'`, which a
  * union like `['slot', 'string']` would have passed while `tsType` fell through
  * to the default and typed it `string` anyway.
+ *
+ * A base attribute the component declares is `Omit`ted from the base it
+ * extends, whatever its scope: the declared input wins with its type. So a
+ * declared type the base one does not admit is no TS2430 conflict — neither
+ * `label?: string | Record<string, unknown>` on a `'where-undeclared'` member
+ * (objectui#11044) nor `record:alert`'s
+ * `visible?: boolean | string | Record<string, unknown>` on an `'every-node'`
+ * one (objectui#11075) — and one the base admits (`className?: string`) types
+ * the same either way.
+ *
+ * The scope is the VALIDATOR's distinction — `validateTree` skips an
+ * `'every-node'` key before the declared-input lookup — and does not reach this
+ * surface. ⛔ Every declared base attribute is `Omit`ted, not only the ones
+ * whose types conflict: assignability is TypeScript's judgement, and a
+ * conflicts-only rule here would re-derive it from type strings.
+ *
+ * A slot-only input emits no attribute, so a declared `children: 'slot'` is
+ * not `Omit`ted and the base `children` stays.
  */
 function emitInterface(comp: ManifestComponent): string {
-  const lines = comp.inputs
-    .filter((i) => valueArms(i).length > 0)
-    .map((i) => `  ${propLine(i)}`)
-    .join('\n');
-  return `export interface ${propsName(comp.type)} extends SduiBaseProps {\n${lines}\n}`;
+  const emitted = comp.inputs.filter((i) => valueArms(i).length > 0);
+  const lines = emitted.map((i) => `  ${propLine(i)}`).join('\n');
+  const yielded = emitted.filter((i) => BASE_ATTRIBUTES.has(i.name)).map((i) => JSON.stringify(i.name));
+  const base = yielded.length > 0 ? `Omit<SduiBaseProps, ${yielded.join(' | ')}>` : 'SduiBaseProps';
+  return `export interface ${propsName(comp.type)} extends ${base} {\n${lines}\n}`;
 }
 
 /** The arms that describe a VALUE (every arm except `'slot'`). */
 
@@ -60,24 +60,122 @@ export function acceptsChildren(comp: Pick<ManifestComponent, 'inputs'>): boolea
 }
 
 /**
- * Base props every node may carry (mirrors BaseSchema) — never "unknown prop".
+ * Where a base prop is legal without a declaration (objectui#11044).
+ *
+ *  - `'every-node'` — on every node, and a registration's own input of the
+ *    same name is not consulted: {@link validateTree} skips the key before the
+ *    declared-input lookup.
+ *  - `'where-undeclared'` — on a type whose registration declares NO input of
+ *    that name. Where one does, the declared input wins, its `type-mismatch`
+ *    check included, and the generated JSX types take the declared type too.
+ */
+export type SduiBasePropScope = 'every-node' | 'where-undeclared';
+
+/** One entry of {@link SDUI_BASE_PROPS}. */
+export interface SduiBaseProp {
+  /** The `BaseSchema` member (`@object-ui/types`). */
+  readonly name: string;
+  readonly scope: SduiBasePropScope;
+  /**
+   * The attribute's type in the generated JSX surface (`SduiBaseProps` in
+   * `sdui-intrinsics.d.ts`), or `null` for the one key that is no attribute:
+   * `type`, which the tag name carries (`parse.ts` refuses a `type` attribute).
+   */
+  readonly tsType: string | null;
+}
+
+/**
+ * The base props: the `BaseSchema` members this tier accepts on a node without
+ * a registration declaring them. ONE list, read by BOTH of its consumers —
+ * {@link validateTree}'s `unknown-prop` branch and `generateDts`'s
+ * `SduiBaseProps` (objectui#11044). Before this list the two were separate
+ * hand-kept copies and had drifted: the validator accepted `bind` and `hidden`
+ * (objectui#11008) while the generated types still refused both.
+ *
+ * `bind` and `hidden` are `'every-node'` (objectui#11008). `BaseSchema` declares
+ * both for every node and no registration declares either as an input, so
+ * before they joined, the undeclared-key branch below answered every authored
+ * one with `unknown-prop` — "has no prop" about a key the protocol declares,
+ * on the nodes that honour it: `hidden` is read for every node by
+ * `SchemaRenderer`'s hide chain, and `bind` by every renderer that calls
+ * `useDataScope` (`list`, `tree-view`, the `object-*` widgets). The
+ * declaration outranks the implementation, so the parser's view is the
+ * declared type's, not a per-registration subset. The cost is accepted and
+ * named: a `bind` on a node that does not read it — `data-table`
+ * (objectui#6575) — draws nothing here either, and its render-time console
+ * warning is the one signal left.
+ *
+ * `visibleWhen`, `hiddenOn` and `testId` are `'every-node'` for the same reason
+ * (objectui#11044): no registration declares any of them, `SchemaRenderer`'s
+ * hide chain reads the first two for every node, and it strips `testId` and
+ * re-emits it as `data-testid`. `visibleWhen` is the canonical ADR-0089
+ * predicate; before it joined, the deprecated `visibleOn` was silent while it
+ * drew `unknown-prop`.
+ *
+ * The `'where-undeclared'` members (objectui#11044, triage ruling) are the
+ * `BaseSchema` members some registrations DECLARE as typed inputs — the input
+ * family's `placeholder`, `label`, `name`, … . Skipping them the way the
+ * `'every-node'` members are skipped would silence those registrations'
+ * `type-mismatch`, so they are base props only where the type declares no
+ * input of that name. ⛔ Never move one to `'every-node'` to accept a key: that
+ * silences a declared type check.
+ *
+ * Held over the live registry by `base-props-one-list-11044.test.tsx` in
+ * `@object-ui/components` — every member a `BaseSchema` member, and `body` the
+ * one member left out.
+ *
+ * ⛔ `body` is NOT here and must not be added. It was `BaseSchema`'s second
+ * child-list spelling until objectui#6771 retired it; teaching this list the
+ * key was the option that ruling refused, because it would have blessed a
+ * second permanent spelling of one concept. `./body-dialect.ts` answers it by
+ * name instead.
+ *
+ * LOCKSTEP: the list, its scopes and the two Sets below are the port of
+ * objectui's `SDUI_BASE_PROPS` (objectui#11008, #11044, pin `db11afd4967c`).
+ * Both consumers are ported too: {@link validateTree} and `codegen.ts`'s
+ * `SduiBaseProps`. The list is exported for `codegen.ts` only; `index.ts` does
+ * not re-export it.
  *
  * `children` IS here: the key is legal on every node, so it never draws
  * `unknown-prop` and its declared `slot` input is never type-checked. Whether
  * a given component RENDERS it is the containment question below, answered by
  * {@link acceptsChildren} from the declared input.
  */
-const BASE_PROPS = new Set([
-  'type',
-  'id',
-  'className',
-  'style',
-  'visible',
-  'visibleOn',
-  'disabled',
-  'disabledOn',
-  CHILD_LIST_KEY,
-]);
+export const SDUI_BASE_PROPS: readonly SduiBaseProp[] = Object.freeze([
+  { name: 'type', scope: 'every-node', tsType: null },
+  { name: 'id', scope: 'every-node', tsType: 'string' },
+  { name: 'className', scope: 'every-node', tsType: 'string' },
+  { name: 'style', scope: 'every-node', tsType: 'Record<string, unknown>' },
+  { name: 'visible', scope: 'every-node', tsType: 'boolean' },
+  { name: 'visibleWhen', scope: 'every-node', tsType: 'string' },
+  { name: 'visibleOn', scope: 'every-node', tsType: 'string' },
+  { name: 'hidden', scope: 'every-node', tsType: 'boolean' },
+  { name: 'hiddenOn', scope: 'every-node', tsType: 'string' },
+  { name: 'disabled', scope: 'every-node', tsType: 'boolean' },
+  { name: 'disabledOn', scope: 'every-node', tsType: 'string' },
+  { name: 'bind', scope: 'every-node', tsType: 'string' },
+  { name: 'testId', scope: 'every-node', tsType: 'string' },
+  { name: CHILD_LIST_KEY, scope: 'every-node', tsType: 'unknown' },
+  { name: 'name', scope: 'where-undeclared', tsType: 'string' },
+  { name: 'label', scope: 'where-undeclared', tsType: 'string | Record<string, string>' },
+  { name: 'description', scope: 'where-undeclared', tsType: 'string | Record<string, string>' },
+  { name: 'placeholder', scope: 'where-undeclared', tsType: 'string' },
+  { name: 'data', scope: 'where-undeclared', tsType: 'unknown' },
+  {
+    name: 'ariaLabel',
+    scope: 'where-undeclared',
+    tsType: 'string | { key: string; defaultValue?: string; params?: Record<string, unknown> }',
+  },
+] satisfies SduiBaseProp[]);
+
+const basePropNames = (scope: SduiBasePropScope): Set<string> =>
+  new Set(SDUI_BASE_PROPS.filter((prop) => prop.scope === scope).map((prop) => prop.name));
+
+/** The `'every-node'` members of {@link SDUI_BASE_PROPS}: never "unknown prop". */
+const BASE_PROPS = basePropNames('every-node');
+
+/** The `'where-undeclared'` members of {@link SDUI_BASE_PROPS}. */
+const WHERE_UNDECLARED_BASE_PROPS = basePropNames('where-undeclared');
 
 const isExpr = (v: unknown): boolean =>
   typeof v === 'object' && v !== null && '$expr' in (v as Record<string, unknown>);
@@ -116,6 +214,10 @@ export function validateTree(tree: SchemaElement | null, manifest: Manifest): Va
       // each provided prop
       for (const [key, value] of Object.entries(node)) {
         if (BASE_PROPS.has(key)) continue;
+        // A declaration outranks a `'where-undeclared'` base prop
+        // (objectui#11044): skipped only when this type declares no input of
+        // that name, so a declared one keeps its type check below.
+        if (WHERE_UNDECLARED_BASE_PROPS.has(key) && !byName.has(key)) continue;
         // The `object-kanban` Quick Add pair (objectui#8285): a key
         // `@objectstack/spec` still publishes and the renderer cannot honour,
         // because the control is gated on a RUNTIME SLOT no parsed page can