diff --git a/src/state/memory-utils.ts b/src/state/memory-utils.ts
index aa0bcc5b..5baac175 100644
--- a/src/state/memory-utils.ts
+++ b/src/state/memory-utils.ts
@@ -20,5 +20,11 @@ export function memoryToObservation(memory: Memory): CompressedObservation {
     concepts: memory.concepts,
     files: memory.files,
     importance: memory.strength,
+    // #817: carry agentId through so agent-scope isolation in
+    // mem::search applies to memories too. Without this, a memory
+    // saved via /remember loads with agentId=undefined and gets
+    // dropped by the isolated-mode filter — hiding an agent's own
+    // remembered memories from itself.
+    agentId: memory.agentId,
   };
 }