From ceca3caa7754864626b6fda71b4155f458fea859 Mon Sep 17 00:00:00 2001
From: oaslananka <285490571+oaslananka@users.noreply.github.com>
Date: Tue, 30 Jun 2026 02:43:22 +0300
Subject: [PATCH] Fix memory search for entities without observations

---
 src/memory/__tests__/knowledge-graph.test.ts | 12 ++++++++++++
 src/memory/index.ts                          |  2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/memory/__tests__/knowledge-graph.test.ts b/src/memory/__tests__/knowledge-graph.test.ts
index 236242413a..a757cfbd04 100644
--- a/src/memory/__tests__/knowledge-graph.test.ts
+++ b/src/memory/__tests__/knowledge-graph.test.ts
@@ -323,6 +323,18 @@ describe('KnowledgeGraphManager', () => {
       expect(result.entities).toHaveLength(0);
       expect(result.relations).toHaveLength(0);
     });
+    it('should handle legacy entities without observations when searching', async () => {
+      await fs.writeFile(
+        testFilePath,
+        JSON.stringify({ type: 'entity', name: 'Legacy Node', entityType: 'person' }),
+      );
+
+      const result = await manager.searchNodes('Legacy');
+      expect(result.entities).toHaveLength(1);
+      expect(result.entities[0].name).toBe('Legacy Node');
+      expect(result.entities[0].observations).toEqual([]);
+    });
+
   });
 
   describe('openNodes', () => {
diff --git a/src/memory/index.ts b/src/memory/index.ts
index 9865c5318e..dd3b26c662 100644
--- a/src/memory/index.ts
+++ b/src/memory/index.ts
@@ -79,7 +79,7 @@ export class KnowledgeGraphManager {
           graph.entities.push({
             name: item.name,
             entityType: item.entityType,
-            observations: item.observations
+            observations: Array.isArray(item.observations) ? item.observations : []
           });
         }
         if (item.type === "relation") {