objectstack-ai
diff --git a/‎.changeset/app-shell-spec-symbol-burn-down.md‎
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diff --git a/‎packages/app-shell/src/__tests__/spec-symbol-parity.test.ts‎
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diff --git a/‎packages/app-shell/src/console/ai/ConversationsSidebar.tsx‎
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@@ -0,0 +1,52 @@
+---
+"@object-ui/app-shell": minor
+---
+
+Stop declaring 28 app-shell symbols under names `@objectstack/spec` owns
+(objectui#3157, objectstack#4115 batch 3).
+
+**Breaking for importers of `@object-ui/app-shell`** — eight exported names
+changed, because the spec exports the same name for a *different* thing:
+
+| was | now | what the spec's same-named export actually is |
+|:--|:--|:--|
+| `FieldInput` | `ScreenFieldInput` | the authoring shape of an object FIELD |
+| `ConversationSummary` | `ConversationListItem` | the AI context-compaction record |
+| `RuntimeConfig` | `AppShellRuntimeConfig` | the ENGINE runtime config |
+| `PageHeaderProps` | `PageHeaderComponentProps` | the authored SDUI page-header schema |
+| `FlowNode` / `FlowEdge` | `FlowDesignerNode` / `FlowDesignerEdge` | a COMPLETE authored flow node/edge |
+| `PackageManifest` | `PackageManifestRow` | the full authored package manifest |
+| `InstalledPackage` | `InstalledPackageRow` | the full install record |
+
+The object designer's `FieldGroup` also becomes `ObjectFieldGroup` — that is
+the spec's own name for this exact shape, while its `FieldGroup` is the Studio
+field-editor's group config. The other nineteen keep their names and are now
+imported or derived from the spec instead of re-declared.
+
+**Three live defects the copies were hiding**, all fixed by importing the real
+types:
+
+- `SchemaDiffEntryKind` was missing `index_mismatch` and `unmapped_index`
+  (framework#3728). The federation validate panel renders a label per kind from
+  a total map, so an index divergence — which the server already emits — arrived
+  as a diff row this UI could not name. The union is now the spec's, and the
+  compiler required the two missing labels.
+- `ExplainLayer.contributors[].state` (`'active' | 'expired'`) did not exist in
+  the local copy of the access-explain report, so an EXPIRED permission-set or
+  position contribution rendered identically to a live one.
+- `ExternalColumn.primaryKey` was optional locally while the server always sends
+  it (the spec schema defaults it), and `ExplainRecordAttribution.rules` /
+  `ExplainDecision.principal.positions` / `.permissionSets` were optional here
+  and required there — every reader carried a nullish branch that could not fire.
+
+The comment justifying the largest copy ("kept local so app-shell does not take
+a build dependency on the framework spec package") was already false:
+`@objectstack/spec` is a direct dependency of this package.
+
+Two symbols are derived structurally rather than re-exported, each with one
+documented divergence pinned by a test: `ScreenSpec` keeps `fields` optional
+(an `object-form` step legitimately sends none — #3528), and `DecisionOutputDef`
+adds `required`, which the server enforces but the spec does not yet model.
+Deriving the latter also narrowed its `type` from a bare `string` to the spec's
+closed enum, so a typo'd picker kind now fails to compile instead of silently
+degrading to a raw record-id text box (objectui#2955).
@@ -0,0 +1,286 @@
+/**
+ * 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.
+ */
+
+/**
+ * app-shell ↔ `@objectstack/spec` symbol-collision tripwires
+ * (objectui#3157, objectstack#4115 burn-down batch 3).
+ *
+ * Twenty-eight app-shell symbols used to be declared under names the spec
+ * already owns. Twenty were burned down by importing or deriving the spec's own
+ * type (eighteen plain re-exports, plus `ScreenSpec` and `DecisionOutputDef`
+ * derived structurally with one documented divergence each); eight were renamed
+ * because they model something the spec's same-named export does not.
+ *
+ * One symbol is in both camps: the object designer's `FieldGroup` was renamed to
+ * `ObjectFieldGroup` AND derived — the spec owns that exact shape, just under
+ * the other name, while its `FieldGroup` is the Studio field-editor's group
+ * config. Renaming to the spec's own name was the fix.
+ *
+ * A rename only stays a fix for as long as the new name is genuinely free. If
+ * the spec later ships a `FlowDesignerNode`, this package would quietly be back
+ * where it started — a local declaration under a spec export's name, read by
+ * the next agent as the spec's own definition. These tests are that tripwire.
+ *
+ * ## Why the spec's names are read through the compiler, not `import * as`
+ *
+ * A runtime namespace import sees VALUES only, and almost every symbol in this
+ * burn-down is a TYPE (`FieldInput`, `RuntimeConfig`, `ConversationSummary`, …).
+ * A tripwire built on `Object.keys(await import('@objectstack/spec/ui'))` would
+ * pass for every one of them while proving nothing — the same mistake the
+ * guard's own header records having made in its first draft. So this reads each
+ * subpath's `.d.ts` through the TypeScript checker, exactly as
+ * `scripts/check-spec-symbol-derivation.mjs` does, and gets types and values
+ * alike.
+ */
+
+import { describe, it, expect } from 'vitest';
+import ts from 'typescript';
+import { createRequire } from 'node:module';
+import { readFileSync } from 'node:fs';
+import { resolve, dirname } from 'node:path';
+
+import { isAggregatedViewContainer } from '../views/metadata-admin/view-item-normalize';
+
+import type { ScreenSpec } from '../views/ScreenView';
+import type { DecisionOutputDef } from '../utils/decisionOutputParams';
+import type { ObjectFieldGroup } from '../views/metadata-admin/previews/object-fields-io';
+import type {
+  ScreenSpec as SpecScreenSpec,
+  ScreenFieldSpec as SpecScreenFieldSpec,
+} from '@objectstack/spec/contracts';
+import type { DecisionOutputDef as SpecDecisionOutputDef } from '@objectstack/spec/automation';
+
+/** Every name `@objectstack/spec` exports from any subpath — types AND values. */
+function specExportNames(): Set<string> {
+  const require = createRequire(import.meta.url);
+  const pkgPath = require.resolve('@objectstack/spec/package.json');
+  const pkgDir = dirname(pkgPath);
+  const pkg = JSON.parse(readFileSync(pkgPath, 'utf8')) as {
+    exports?: Record<string, { import?: { types?: string }; require?: { types?: string } }>;
+  };
+
+  const files: string[] = [];
+  for (const cond of Object.values(pkg.exports ?? {})) {
+    if (typeof cond !== 'object' || cond === null) continue;
+    const dts = cond.import?.types ?? cond.require?.types;
+    if (dts) files.push(resolve(pkgDir, dts));
+  }
+
+  const program = ts.createProgram(files, {
+    noEmit: true,
+    skipLibCheck: true,
+    strict: false,
+    target: ts.ScriptTarget.ESNext,
+    module: ts.ModuleKind.ESNext,
+    moduleResolution: ts.ModuleResolutionKind.Bundler,
+  });
+  const checker = program.getTypeChecker();
+
+  const names = new Set<string>();
+  for (const file of files) {
+    const sf = program.getSourceFile(file);
+    if (!sf) continue;
+    const moduleSymbol = checker.getSymbolAtLocation(sf);
+    if (!moduleSymbol) continue;
+    for (const exported of checker.getExportsOfModule(moduleSymbol)) names.add(exported.getName());
+  }
+  return names;
+}
+
+const SPEC_NAMES = specExportNames();
+
+/**
+ * Sanity: if this set came back empty (bad resolve, changed `exports` map), every
+ * "the spec does not own X" assertion below would pass vacuously.
+ */
+describe('the spec export-name probe itself works', () => {
+  it('reads a non-trivial number of names', () => {
+    expect(SPEC_NAMES.size).toBeGreaterThan(1000);
+  });
+
+  it('sees TYPE-only exports, not just runtime values', () => {
+    // `FieldInput` is `Omit<Partial<Field>, 'type'>` — invisible to `import()`.
+    expect(SPEC_NAMES.has('FieldInput')).toBe(true);
+  });
+});
+
+/**
+ * The ten renames. Each entry is `[local dialect name, the spec name it used to
+ * collide with]`, with a one-line note on what the spec's symbol actually means
+ * — the thing the old name falsely claimed.
+ */
+const RENAMES: Array<[local: string, formerly: string, specMeaning: string]> = [
+  ['ScreenFieldInput', 'FieldInput', "the authoring shape of an object FIELD (Omit<Partial<Field>, 'type'>)"],
+  ['ConversationListItem', 'ConversationSummary', 'the AI context-COMPACTION record (keyPoints, tokensSaved, …)'],
+  ['AppShellRuntimeConfig', 'RuntimeConfig', 'the ENGINE runtime config (engine, engineConfig, resourceLimits)'],
+  ['PageHeaderComponentProps', 'PageHeaderProps', 'the AUTHORED SDUI page-header node schema (strings, action ids)'],
+  ['FlowDesignerNode', 'FlowNode', 'a COMPLETE authored flow node (label required)'],
+  ['FlowDesignerEdge', 'FlowEdge', 'a COMPLETE authored flow edge (id required, condition needs `dialect`)'],
+  ['PackageManifestRow', 'PackageManifest', 'the full authored package manifest (~40 keys)'],
+  ['InstalledPackageRow', 'InstalledPackage', 'the full install record (installedAt, upgradeHistory, …)'],
+];
+
+describe('renamed local dialects do not collide with a spec export', () => {
+  it.each(RENAMES)('the spec does not own `%s`', (local) => {
+    expect(
+      SPEC_NAMES.has(local),
+      `@objectstack/spec now exports \`${local}\`. This package declares its own ` +
+        `\`${local}\`, so the rename that fixed objectstack#4115 has re-created the ` +
+        `collision under the new name. Rename again (and check the new name here ` +
+        `FIRST — objectui#3074 landed a rename onto another spec export exactly ` +
+        `this way), or derive from the spec if the two really are the same thing.`,
+    ).toBe(false);
+  });
+
+  /**
+   * The other half of the ratchet. If the spec ever RETIRES the name that forced
+   * a rename, the rename is no longer load-bearing and the local dialect can go
+   * back to the natural name — this fails and says so, so the workaround cannot
+   * outlive its reason.
+   */
+  it.each(RENAMES)('the spec still owns `%s` (second value: %s)', (_local, formerly) => {
+    expect(
+      SPEC_NAMES.has(formerly),
+      `@objectstack/spec no longer exports \`${formerly}\`, which is the only ` +
+        `reason this package renamed it. Either the spec dropped it (then take the ` +
+        `plain name back) or it moved (then re-check what it means now).`,
+    ).toBe(true);
+  });
+});
+
+/**
+ * `FlowCanvasNode` / `FlowCanvasEdge` are the names one would naturally reach for
+ * when renaming the designer's node/edge types. They are already spec exports —
+ * and they mean the pure VISUAL OVERLAY (`{ nodeId, x, y, collapsed, … }`), not
+ * the node. Pinned so a future rename does not walk into them.
+ */
+describe('the obvious alternative flow names are already taken', () => {
+  it.each(['FlowCanvasNode', 'FlowCanvasEdge'])('`%s` belongs to the spec', (name) => {
+    expect(SPEC_NAMES.has(name)).toBe(true);
+  });
+});
+
+/**
+ * Re-exports must be the spec's own binding, not a copy that happens to agree.
+ * Reference identity is the only check that can tell those apart — a faithful
+ * copy passes every value comparison (objectui#3003).
+ */
+describe('re-exported values are the spec binding itself', () => {
+  it('isAggregatedViewContainer IS the spec function', async () => {
+    const spec = await import('@objectstack/spec');
+    expect(isAggregatedViewContainer).toBe(spec.isAggregatedViewContainer);
+  });
+
+  it('still behaves as the metadata list needs', () => {
+    expect(isAggregatedViewContainer({ list: {} })).toBe(true);
+    expect(isAggregatedViewContainer({ listViews: {} })).toBe(true);
+    // An already-expanded ViewItem carries the discriminant and is NOT a container.
+    expect(isAggregatedViewContainer({ viewKind: 'list', list: {} })).toBe(false);
+    expect(isAggregatedViewContainer({ name: 'x' })).toBe(false);
+    expect(isAggregatedViewContainer(null)).toBe(false);
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* Structural derivations — the three symbols that are neither a plain          */
+/* re-export nor a rename. Each pins its ONE documented divergence, so the      */
+/* divergence cannot silently grow and cannot silently outlive its reason.      */
+/* -------------------------------------------------------------------------- */
+
+/** Compile-time assertions. A violation is a `tsc` error, not a runtime failure. */
+type Assert<T extends true> = T;
+type Extends<A, B> = [A] extends [B] ? true : false;
+type IsAny<T> = 0 extends 1 & T ? true : false;
+type Equal<A, B> = (<T>() => T extends A ? 1 : 2) extends <T>() => T extends B ? 1 : 2
+  ? true
+  : false;
+
+describe('ScreenSpec derives from the spec, widening only `fields`', () => {
+  it('is pinned at compile time', () => {
+    // Guard against the probe lying: if either side erased to `any`, every
+    // assignability assertion below would pass while proving nothing
+    // (objectstack#4171 is exactly that failure for other symbols).
+    type _NotAny = Assert<Equal<IsAny<SpecScreenSpec>, false>>;
+    type _LocalNotAny = Assert<Equal<IsAny<ScreenSpec>, false>>;
+
+    // The spec's screen is always a valid local screen: widening only ever adds.
+    type _SpecIsUsableHere = Assert<Extends<SpecScreenSpec, ScreenSpec>>;
+
+    // …but not the reverse, and for exactly one reason: `fields` is optional
+    // here. If this ever becomes `true`, the spec has made `fields` optional
+    // itself and this alias should collapse to a plain re-export.
+    type _StillWidened = Assert<Equal<Extends<ScreenSpec, SpecScreenSpec>, false>>;
+
+    // The widening is confined to `fields` — every other key is the spec's.
+    type _OnlyFieldsDiffers = Assert<
+      Extends<Omit<ScreenSpec, 'fields'>, Omit<SpecScreenSpec, 'fields'>>
+    >;
+    type _FieldsIsSpecFields = Assert<
+      Equal<NonNullable<ScreenSpec['fields']>, SpecScreenFieldSpec[]>
+    >;
+
+    // No key was invented locally, and none of the spec's was dropped.
+    type _NoLocalOnlyKeys = Assert<Equal<Exclude<keyof ScreenSpec, keyof SpecScreenSpec>, never>>;
+    type _NoMissingKeys = Assert<Equal<Exclude<keyof SpecScreenSpec, keyof ScreenSpec>, never>>;
+
+    expect(true).toBe(true);
+  });
+});
+
+describe('DecisionOutputDef derives from the spec, adding only `required`', () => {
+  it('is pinned at compile time', () => {
+    type _NotAny = Assert<Equal<IsAny<SpecDecisionOutputDef>, false>>;
+
+    // Every spec decision output is usable here.
+    type _SpecIsUsableHere = Assert<Extends<SpecDecisionOutputDef, DecisionOutputDef>>;
+
+    // `required` is the ONLY local addition. When the spec adopts it, this
+    // becomes `never`, the assertion fails, and the interface should collapse
+    // to a plain re-export.
+    type _OnlyRequiredAdded = Assert<
+      Equal<Exclude<keyof DecisionOutputDef, keyof SpecDecisionOutputDef>, 'required'>
+    >;
+
+    // Deriving NARROWED `type` from the bare `string` this file used to declare
+    // to the spec's closed enum — that narrowing is the point, so pin it.
+    type _TypeIsClosed = Assert<
+      Equal<DecisionOutputDef['type'], 'user' | 'department' | 'position' | 'team' | 'text' | undefined>
+    >;
+
+    expect(true).toBe(true);
+  });
+});
+
+describe('ObjectFieldGroup derives from the spec schema INPUT side', () => {
+  it('keeps `collapse` authorable (the z.input vs z.infer trap)', () => {
+    // `collapse` carries `.default('none')`, so it is optional to AUTHOR and
+    // required after parsing. This designer authors — `addGroup` emits
+    // `{ key, label }` — so the output type would make its own new-group shape
+    // unrepresentable. If this flips, someone swapped z.input for z.infer.
+    type _CollapseOptional = Assert<Extends<{ key: string; label: string }, ObjectFieldGroup>>;
+
+    // Still the real spec vocabulary, not a hand copy that merely agrees.
+    type _HasSpecKeys = Assert<
+      Extends<
+        'key' | 'label' | 'icon' | 'description' | 'collapse' | 'collapsible' | 'collapsed' | 'defaultExpanded',
+        keyof ObjectFieldGroup
+      >
+    >;
+    type _NoInventedKeys = Assert<
+      Equal<
+        Exclude<
+          keyof ObjectFieldGroup,
+          'key' | 'label' | 'icon' | 'description' | 'collapse' | 'collapsible' | 'collapsed' | 'defaultExpanded'
+        >,
+        never
+      >
+    >;
+
+    expect(true).toBe(true);
+  });
+});
@@ -20,7 +20,7 @@ import {
   cn,
 } from '@object-ui/components';
 import { agentAliasGroup, agentRouteName } from '@object-ui/plugin-chatbot';
-import { useConversationList, type ConversationSummary } from '../../hooks/useConversationList';
+import { useConversationList, type ConversationListItem } from '../../hooks/useConversationList';
 
 export interface ConversationsSidebarProps {
   userId: string | undefined;
@@ -73,7 +73,7 @@ export type ConversationGroupKey = 'today' | 'yesterday' | 'previous7Days' | 'pr
 
 export interface ConversationGroup {
   key: ConversationGroupKey;
-  items: ConversationSummary[];
+  items: ConversationListItem[];
 }
 
 const GROUP_ORDER: ConversationGroupKey[] = ['today', 'yesterday', 'previous7Days', 'previous30Days', 'older'];
@@ -95,18 +95,18 @@ export const CONVERSATION_GROUP_LABELS: Record<ConversationGroupKey, string> = {
  * component's render path). Empty sections are omitted.
  */
 export function groupConversationsByDate(
-  conversations: ConversationSummary[],
+  conversations: ConversationListItem[],
   nowMs: number = Date.now(),
 ): ConversationGroup[] {
   const startOfToday = new Date(nowMs);
   startOfToday.setHours(0, 0, 0, 0);
   const todayMs = startOfToday.getTime();
   const DAY = 24 * 60 * 60 * 1000;
-  const stamp = (c: ConversationSummary): number => {
+  const stamp = (c: ConversationListItem): number => {
     const v = new Date(c.updatedAt ?? c.createdAt ?? 0).getTime();
     return Number.isNaN(v) ? 0 : v;
   };
-  const buckets: Record<ConversationGroupKey, ConversationSummary[]> = {
+  const buckets: Record<ConversationGroupKey, ConversationListItem[]> = {
     today: [],
     yesterday: [],
     previous7Days: [],
@@ -185,7 +185,7 @@ export function ConversationsSidebar({
   // Navigate to a conversation on its OWN agent surface (so a lenient
   // cross-agent row still opens correctly); fall back to this surface.
   const conversationHref = useCallback(
-    (c: ConversationSummary) => {
+    (c: ConversationListItem) => {
       const seg = c.agentId ? agentRouteName(c.agentId) : agentRoute;
       return seg ? `/ai/${seg}/${c.id}` : `/ai/${c.id}`;
     },
@@ -305,7 +305,7 @@ export function ConversationsSidebar({
 }
 
 interface RowProps {
-  conversation: ConversationSummary;
+  conversation: ConversationListItem;
   /** Active search query — matched substrings are highlighted in title/preview. */
   query?: string;
   active: boolean;