diff --git a/src/resources/extensions/sf/memory-store.ts b/src/resources/extensions/sf/memory-store.ts
index 4951b0a21..99e69b16d 100644
--- a/src/resources/extensions/sf/memory-store.ts
+++ b/src/resources/extensions/sf/memory-store.ts
@@ -434,6 +434,12 @@ export function decayStaleMemories(thresholdUnits = 20): void {
 
 /**
  * Supersede lowest-ranked memories when count exceeds cap.
+ *
+ * After superseding, sweeps memory_embeddings for rows whose memory is now
+ * superseded — keeps the embeddings table aligned with active memories so
+ * loadAllEmbeddings doesn't carry dead vectors and storage doesn't grow
+ * unbounded. Best-effort cleanup; the cap enforcement is the load-bearing
+ * step.
  */
 export function enforceMemoryCap(max = 50): void {
 	if (!isDbAvailable()) return;
@@ -451,6 +457,21 @@ export function enforceMemoryCap(max = 50): void {
 
 		const excess = count - max;
 		supersedeLowestRankedMemories(excess, new Date().toISOString());
+
+		// Sweep orphaned embeddings for newly-superseded memories.
+		try {
+			adapter
+				.prepare(
+					`DELETE FROM memory_embeddings WHERE memory_id IN (
+            SELECT id FROM memories WHERE superseded_by IS NOT NULL
+          )`,
+				)
+				.run();
+		} catch {
+			// Orphaned rows are harmless to queries (loadAllEmbeddings filters
+			// by superseded_by IS NULL); skip-on-error keeps cap enforcement
+			// load-bearing without coupling to embedding cleanup.
+		}
 	} catch {
 		// non-fatal
 	}