diff --git a/src/browser/features/Memory/MemoryBrowser.tsx b/src/browser/features/Memory/MemoryBrowser.tsx
index b723f94e58..aa88b05eeb 100644
--- a/src/browser/features/Memory/MemoryBrowser.tsx
+++ b/src/browser/features/Memory/MemoryBrowser.tsx
@@ -485,6 +485,20 @@ function MemoryFileRow(props: MemoryFileRowProps) {
   );
 }
 
+function uniqueConsolidationSummaryLines(
+  summaries: ReadonlyArray<string | null | undefined>
+): string[] {
+  const seen = new Set<string>();
+  const lines: string[] = [];
+  for (const summary of summaries) {
+    const line = summary?.trim();
+    if (!line || seen.has(line)) continue;
+    seen.add(line);
+    lines.push(line);
+  }
+  return lines;
+}
+
 function formatConsolidationRecord(record: MemoryConsolidationRecordPayload | null): string {
   if (record === null) return "never";
   const appliedCount = record.ops.filter((op) => op.applied).length;
@@ -556,14 +570,15 @@ function ConsolidationFooter(props: {
     : "never";
   const harvestError =
     status?.latestHarvestRecord?.status === "failed" ? status.latestHarvestRecord.error : undefined;
-  const summaryTitle = [
+  // One consolidation pass can cover workspace, project, and global memory at
+  // once, so those scope records often share the exact same summary. Keep the
+  // per-scope status lines below, but avoid repeating identical tooltip text.
+  const summaryTitle = uniqueConsolidationSummaryLines([
     status?.workspaceRecord?.summary,
     status?.projectRecord?.summary,
     status?.globalRecord?.summary,
     status?.latestHarvestRecord?.error,
-  ]
-    .filter(Boolean)
-    .join("\n");
+  ]).join("\n");
 
   return (
     <div className="border-border-light flex items-center justify-between gap-2 border-t px-3 py-2 text-xs">
diff --git a/src/browser/features/RightSidebar/Memory/MemoryTab.test.tsx b/src/browser/features/RightSidebar/Memory/MemoryTab.test.tsx
index 35b5bbe531..68a5432f5d 100644
--- a/src/browser/features/RightSidebar/Memory/MemoryTab.test.tsx
+++ b/src/browser/features/RightSidebar/Memory/MemoryTab.test.tsx
@@ -269,6 +269,39 @@ describe("MemoryTab", () => {
     expect(getByText(/^Project:/).textContent).not.toContain("manual");
   });
 
+  test("deduplicates identical consolidation summaries in the tooltip", async () => {
+    const sharedRecord = {
+      ...DEFAULT_CONSOLIDATION_RECORD,
+      summary: "shared consolidation summary",
+    };
+    fake = createFakeMemoryApi([], {
+      consolidationStatus: {
+        workspaceRecord: sharedRecord,
+        projectRecord: sharedRecord,
+        globalRecord: sharedRecord,
+        latestHarvestRecord: null,
+        projectAvailable: true,
+      },
+    });
+    const { findByText } = render(<MemoryTab workspaceId="ws-1" />);
+
+    const workspaceLine = await findByText(/^Workspace: .*manual/);
+    const statusBlock = workspaceLine.parentElement;
+    expect(statusBlock).not.toBeNull();
+    fireEvent.pointerMove(statusBlock!);
+
+    await waitFor(() => {
+      const tooltipBlocks = Array.from(
+        document.querySelectorAll<HTMLElement>(".whitespace-pre-line")
+      );
+      expect(tooltipBlocks.length).toBeGreaterThan(0);
+      for (const block of tooltipBlocks) {
+        const matches = block.textContent?.match(/shared consolidation summary/g) ?? [];
+        expect(matches).toHaveLength(1);
+      }
+    });
+  });
+
   test("consolidation summary does not leave a native title tooltip", async () => {
     fake = createFakeMemoryApi([], {
       consolidationStatus: {
diff --git a/src/node/services/historyService.ts b/src/node/services/historyService.ts
index 364d15a45f..8a9f6e6c87 100644
--- a/src/node/services/historyService.ts
+++ b/src/node/services/historyService.ts
@@ -901,7 +901,7 @@ export class HistoryService {
       let summary: MuxMessage | undefined;
       const lowerBound = metadata.previousBoundaryHistorySequence;
 
-      await this.iterateForward(workspaceId, (chunk) => {
+      const iteration = await this.iterateFullHistory(workspaceId, "forward", (chunk) => {
         for (const message of chunk) {
           const sequence = message.metadata?.historySequence;
           if (!isNonNegativeInteger(sequence)) continue;
@@ -921,6 +921,9 @@ export class HistoryService {
           messages.push(message);
         }
       });
+      if (!iteration.success) {
+        return Err(`Failed to read compaction epoch messages: ${iteration.error}`);
+      }
 
       if (summary === undefined) {
         return Err(`Compaction summary not found: ${metadata.summaryMessageId}`);