@@ -0,0 +1,41 @@
+---
+'@objectstack/spec': patch
+---
+
+`ChartDrillDownSchema`'s refusal text for `drillDown.mode` names the one objectui block that reads it, not all three it used to
+
+An author (or an AI) who writes `drillDown.mode` on a chart gets this guidance
+sentence back from `objectui validate` / `safeValidateSchema`. It used to read:
+
+> `mode` (`'filter'` | `'record'`) is a TABLE / PIVOT / METRIC drill key, not a
+> chart one: …
+
+`object-metric` has refused `drillDown.mode` at its TypeScript door since
+objectui#9002 (PR objectui#10681, merged, on the maintainer ruling recorded
+there, comment `5643445104`), and `object-pivot` has refused it since
+objectui#10685 (PR objectui#10710, merged). Measured on objectui `origin/main`:
+neither block's renderer ever read `mode`; only `object-data-table` does. So
+the old sentence sent an author who followed it straight into a second
+refusal on two of the three blocks it named — right on `object-pivot` and
+`object-metric` (both now refuse the key by name), and a stored JSON config
+that carries it there is silently ignored with no diagnostic.
+
+The sentence now names the one block that actually reads `mode`:
+
+> `mode` (`'filter'` | `'record'`) is objectui's `object-data-table` drill
+> key, not a chart one: …
+
+The reasoning clause and "Delete the key" are unchanged. The neighbouring
+`report` guidance entry (a METRIC / PIVOT widget capability) is untouched —
+its blocks were not remeasured on this card.
+
+⛔ No accept/reject behaviour changes. `mode` remains refused on
+`ChartDrillDownSchema` exactly as before; only the refusal text changes.
+
+**This is shipped, which is why it carries a changeset rather than
+`skip-changeset`.** `@objectstack/spec`'s published `files[]` ships both
+`dist` and `src/**/*.zod.ts`, and `chart.zod.ts` is one of the latter — so the
+sentence ships as source verbatim, and also as a runtime string built into
+`dist/ui/index.js` / `dist/ui/index.mjs` (measured: present at 1 occurrence
+each after a rebuild, with the old "TABLE / PIVOT / METRIC" spelling absent
+from both).
@@ -1030,7 +1030,7 @@ describe('validateReactPageProps — <ObjectChart drillDown> (#5022)', () => {
   it('rejects a key that belongs to another widget, with the reason rather than a rename', () => {
     const f = validateReactPageProps(drill(`{ mode: 'record' }`));
     const hit = f.find((x) => x.rule === REACT_CHART_DRILLDOWN_INVALID);
-    expect(hit!.message).toContain('TABLE / PIVOT / METRIC');
+    expect(hit!.message).toContain('object-data-table');
   });
 
   it('rejects the report near-key spelling and names the type difference', () => {
 
@@ -704,7 +704,7 @@ describe('#5022 — ChartDrillDownSchema', () => {
   });
 
   it.each([
-    ['mode', 'TABLE / PIVOT / METRIC'],
+    ['mode', 'object-data-table'],
     ['report', 'METRIC / PIVOT'],
     ['view', 'read by no renderer at all'],
     ['sort', 'read by no renderer'],
 
@@ -470,7 +470,7 @@ export const ChartDrillDownSchema = lazySchema(() => strictObject(
       // Keys of objectui's wider renderer-side drill config. Each is real —
       // on another widget — so a rename suggestion would be actively wrong.
       mode:
-        '`mode` (`\'filter\'` | `\'record\'`) is a TABLE / PIVOT / METRIC drill key, not a chart one: it chooses whether a click drills through an aggregate to a filtered list or straight to one record. A chart segment is always an aggregate, so a chart drill is always the filtered-list kind and there is nothing to discriminate. Delete the key.',
+        '`mode` (`\'filter\'` | `\'record\'`) is objectui\'s `object-data-table` drill key, not a chart one: it chooses whether a click drills through an aggregate to a filtered list or straight to one record. A chart segment is always an aggregate, so a chart drill is always the filtered-list kind and there is nothing to discriminate. Delete the key.',
       report:
         '`report` (drill into an analytical report instead of the record list) is a METRIC / PIVOT widget capability in the objectui renderer; `<ObjectChart>` does not read it and renders the record list regardless. Delete the key, or drill from a metric widget instead.',
       view: