diff --git a/packages/core/src/ai-model/conversation-history.ts b/packages/core/src/ai-model/conversation-history.ts
index ba72e0bb1..86be07ee4 100644
--- a/packages/core/src/ai-model/conversation-history.ts
+++ b/packages/core/src/ai-model/conversation-history.ts
@@ -42,6 +42,7 @@ export class ConversationHistory {
     this.memories.length = 0;
     this.subGoals.length = 0;
     this.historicalLogs.length = 0;
+    this.pendingFeedbackMessage = '';
   }
 
   /**
diff --git a/packages/core/tests/unit-test/conversation-history.test.ts b/packages/core/tests/unit-test/conversation-history.test.ts
index cf01410aa..2709c5e82 100644
--- a/packages/core/tests/unit-test/conversation-history.test.ts
+++ b/packages/core/tests/unit-test/conversation-history.test.ts
@@ -54,6 +54,8 @@ describe('ConversationHistory', () => {
     history.appendHistoricalLog('Step 1');
     history.appendHistoricalLog('Step 2');
 
+    history.pendingFeedbackMessage = 'Current time: 2026-03-02T16:04:00';
+
     history.reset();
 
     expect(history.length).toBe(0);
@@ -62,6 +64,7 @@ describe('ConversationHistory', () => {
     expect(history.memoriesToText()).toBe('');
     expect(history.subGoalsToText()).toBe('');
     expect(history.historicalLogsToText()).toBe('');
+    expect(history.pendingFeedbackMessage).toBe('');
   });
 
   it('clears pending feedback message only when set', () => {