diff --git a/clients/LedgerClient.test.ts b/clients/LedgerClient.test.ts
index 855291d..a82cc03 100644
--- a/clients/LedgerClient.test.ts
+++ b/clients/LedgerClient.test.ts
@@ -784,6 +784,35 @@ describe('LedgerClient', () => {
       await client.listInformationBlocks('graph_1', { blockType: 'forecast', entityId: 'ent_sub' })
       expect(variablesOf(0)).toMatchObject({ blockType: 'forecast', entityId: 'ent_sub' })
     })
+
+    it('listInformationBlockSummaries returns identities and counts', async () => {
+      mockFetch.mockResolvedValueOnce(
+        gqlResponse({
+          informationBlockSummaries: [
+            {
+              id: 'str_1',
+              blockType: 'schedule',
+              name: 'Depreciation',
+              displayName: 'Schedule',
+              category: 'Close',
+              taxonomyId: 'tax_1',
+              taxonomyName: 'My CoA',
+              entityId: 'ent_parent',
+              factCount: 12,
+              connectionCount: 3,
+            },
+          ],
+        })
+      )
+      const rows = await client.listInformationBlockSummaries('graph_1', {
+        limit: 200,
+        entityId: 'ent_sub',
+      })
+      expect(rows).toHaveLength(1)
+      expect(rows[0].factCount).toBe(12)
+      expect(rows[0]).not.toHaveProperty('facts')
+      expect(variablesOf(0)).toMatchObject({ limit: 200, entityId: 'ent_sub' })
+    })
   })
 
   describe('getMappingCoverage', () => {
diff --git a/clients/LedgerClient.ts b/clients/LedgerClient.ts
index 523beae..c3a80a8 100644
--- a/clients/LedgerClient.ts
+++ b/clients/LedgerClient.ts
@@ -209,6 +209,7 @@ import {
   GetLedgerTrialBalanceDocument,
   ListChartTemplatesDocument,
   ListInformationBlocksDocument,
+  ListInformationBlockSummariesDocument,
   ListLedgerAccountsDocument,
   ListLedgerAgentsDocument,
   ListLedgerBankAccountsDocument,
@@ -252,6 +253,7 @@ import {
   type GetLedgerTrialBalanceQuery,
   type ListChartTemplatesQuery,
   type ListInformationBlocksQuery,
+  type ListInformationBlockSummariesQuery,
   type ListLedgerAccountsQuery,
   type ListLedgerAgentsQuery,
   type ListLedgerBlockedSourceGraphsQuery,
@@ -339,6 +341,8 @@ export type LedgerMappingCoverage = NonNullable<GetLedgerMappingCoverageQuery['m
 
 export type InformationBlock = NonNullable<GetInformationBlockQuery['informationBlock']>
 export type InformationBlockList = ListInformationBlocksQuery['informationBlocks']
+export type InformationBlockSummaryList =
+  ListInformationBlockSummariesQuery['informationBlockSummaries']
 export type InformationBlockElement = InformationBlock['elements'][number]
 export type InformationBlockConnection = InformationBlock['connections'][number]
 export type InformationBlockFact = InformationBlock['facts'][number]
@@ -1675,6 +1679,42 @@ export class LedgerClient {
     return blocks ?? []
   }
 
+  /**
+   * List Information Blocks as identities and counts, one row per block —
+   * the rows, filters, order and page of `listInformationBlocks`, read in
+   * one query instead of an envelope build per block. The call that fills
+   * a picker: `factCount > 0` marks a block whose envelope carries facts
+   * (a library-seeded structure variant carries none); a block's atoms
+   * come from `getInformationBlock`.
+   */
+  async listInformationBlockSummaries(
+    graphId: string,
+    options?: {
+      blockType?: string
+      category?: string
+      limit?: number
+      offset?: number
+      scenarioId?: string
+      entityId?: string | null
+    }
+  ): Promise<InformationBlockSummaryList> {
+    const rows = await this.gqlQuery(
+      graphId,
+      ListInformationBlockSummariesDocument,
+      {
+        blockType: options?.blockType ?? null,
+        category: options?.category ?? null,
+        limit: options?.limit ?? null,
+        offset: options?.offset ?? null,
+        scenarioId: options?.scenarioId ?? null,
+        entityId: options?.entityId ?? null,
+      },
+      'List information block summaries',
+      (data) => data.informationBlockSummaries
+    )
+    return rows ?? []
+  }
+
   // ── Schedules ──────────────────────────────────────────────────────
 
   /**
diff --git a/clients/graphql/generated/graphql.ts b/clients/graphql/generated/graphql.ts
index 6fe0d80..2f6ffeb 100644
--- a/clients/graphql/generated/graphql.ts
+++ b/clients/graphql/generated/graphql.ts
@@ -1196,6 +1196,30 @@ export type ListInformationBlocksQuery = {
   }>
 }
 
+export type ListInformationBlockSummariesQueryVariables = Exact<{
+  blockType: string | null | undefined
+  category: string | null | undefined
+  limit: number | null | undefined
+  offset: number | null | undefined
+  scenarioId: string | null | undefined
+  entityId: string | null | undefined
+}>
+
+export type ListInformationBlockSummariesQuery = {
+  informationBlockSummaries: Array<{
+    id: string
+    blockType: string
+    name: string
+    displayName: string
+    category: string
+    taxonomyId: string | null
+    taxonomyName: string | null
+    entityId: string | null
+    factCount: number
+    connectionCount: number
+  }>
+}
+
 export type ListLedgerJournalEntriesQueryVariables = Exact<{
   startDate: string | null | undefined
   endDate: string | null | undefined
@@ -5528,6 +5552,107 @@ export const ListInformationBlocksDocument = {
     },
   ],
 } as unknown as DocumentNode<ListInformationBlocksQuery, ListInformationBlocksQueryVariables>
+export const ListInformationBlockSummariesDocument = {
+  kind: 'Document',
+  definitions: [
+    {
+      kind: 'OperationDefinition',
+      operation: 'query',
+      name: { kind: 'Name', value: 'ListInformationBlockSummaries' },
+      variableDefinitions: [
+        {
+          kind: 'VariableDefinition',
+          variable: { kind: 'Variable', name: { kind: 'Name', value: 'blockType' } },
+          type: { kind: 'NamedType', name: { kind: 'Name', value: 'String' } },
+        },
+        {
+          kind: 'VariableDefinition',
+          variable: { kind: 'Variable', name: { kind: 'Name', value: 'category' } },
+          type: { kind: 'NamedType', name: { kind: 'Name', value: 'String' } },
+        },
+        {
+          kind: 'VariableDefinition',
+          variable: { kind: 'Variable', name: { kind: 'Name', value: 'limit' } },
+          type: { kind: 'NamedType', name: { kind: 'Name', value: 'Int' } },
+        },
+        {
+          kind: 'VariableDefinition',
+          variable: { kind: 'Variable', name: { kind: 'Name', value: 'offset' } },
+          type: { kind: 'NamedType', name: { kind: 'Name', value: 'Int' } },
+        },
+        {
+          kind: 'VariableDefinition',
+          variable: { kind: 'Variable', name: { kind: 'Name', value: 'scenarioId' } },
+          type: { kind: 'NamedType', name: { kind: 'Name', value: 'String' } },
+        },
+        {
+          kind: 'VariableDefinition',
+          variable: { kind: 'Variable', name: { kind: 'Name', value: 'entityId' } },
+          type: { kind: 'NamedType', name: { kind: 'Name', value: 'String' } },
+        },
+      ],
+      selectionSet: {
+        kind: 'SelectionSet',
+        selections: [
+          {
+            kind: 'Field',
+            name: { kind: 'Name', value: 'informationBlockSummaries' },
+            arguments: [
+              {
+                kind: 'Argument',
+                name: { kind: 'Name', value: 'blockType' },
+                value: { kind: 'Variable', name: { kind: 'Name', value: 'blockType' } },
+              },
+              {
+                kind: 'Argument',
+                name: { kind: 'Name', value: 'category' },
+                value: { kind: 'Variable', name: { kind: 'Name', value: 'category' } },
+              },
+              {
+                kind: 'Argument',
+                name: { kind: 'Name', value: 'limit' },
+                value: { kind: 'Variable', name: { kind: 'Name', value: 'limit' } },
+              },
+              {
+                kind: 'Argument',
+                name: { kind: 'Name', value: 'offset' },
+                value: { kind: 'Variable', name: { kind: 'Name', value: 'offset' } },
+              },
+              {
+                kind: 'Argument',
+                name: { kind: 'Name', value: 'scenarioId' },
+                value: { kind: 'Variable', name: { kind: 'Name', value: 'scenarioId' } },
+              },
+              {
+                kind: 'Argument',
+                name: { kind: 'Name', value: 'entityId' },
+                value: { kind: 'Variable', name: { kind: 'Name', value: 'entityId' } },
+              },
+            ],
+            selectionSet: {
+              kind: 'SelectionSet',
+              selections: [
+                { kind: 'Field', name: { kind: 'Name', value: 'id' } },
+                { kind: 'Field', name: { kind: 'Name', value: 'blockType' } },
+                { kind: 'Field', name: { kind: 'Name', value: 'name' } },
+                { kind: 'Field', name: { kind: 'Name', value: 'displayName' } },
+                { kind: 'Field', name: { kind: 'Name', value: 'category' } },
+                { kind: 'Field', name: { kind: 'Name', value: 'taxonomyId' } },
+                { kind: 'Field', name: { kind: 'Name', value: 'taxonomyName' } },
+                { kind: 'Field', name: { kind: 'Name', value: 'entityId' } },
+                { kind: 'Field', name: { kind: 'Name', value: 'factCount' } },
+                { kind: 'Field', name: { kind: 'Name', value: 'connectionCount' } },
+              ],
+            },
+          },
+        ],
+      },
+    },
+  ],
+} as unknown as DocumentNode<
+  ListInformationBlockSummariesQuery,
+  ListInformationBlockSummariesQueryVariables
+>
 export const ListLedgerJournalEntriesDocument = {
   kind: 'Document',
   definitions: [
diff --git a/clients/graphql/queries/ledger/informationBlock.ts b/clients/graphql/queries/ledger/informationBlock.ts
index f55528b..328943d 100644
--- a/clients/graphql/queries/ledger/informationBlock.ts
+++ b/clients/graphql/queries/ledger/informationBlock.ts
@@ -521,3 +521,40 @@ export const LIST_INFORMATION_BLOCKS = gql`
     }
   }
 `
+
+/**
+ * List Information Blocks as identities and counts, one row per block —
+ * the rows, filters, order and page of `ListInformationBlocks`, read in
+ * one query instead of an envelope build per block. The document a
+ * picker fills from.
+ */
+export const LIST_INFORMATION_BLOCK_SUMMARIES = gql`
+  query ListInformationBlockSummaries(
+    $blockType: String
+    $category: String
+    $limit: Int
+    $offset: Int
+    $scenarioId: String
+    $entityId: String
+  ) {
+    informationBlockSummaries(
+      blockType: $blockType
+      category: $category
+      limit: $limit
+      offset: $offset
+      scenarioId: $scenarioId
+      entityId: $entityId
+    ) {
+      id
+      blockType
+      name
+      displayName
+      category
+      taxonomyId
+      taxonomyName
+      entityId
+      factCount
+      connectionCount
+    }
+  }
+`