diff --git a/chat/core/src/main/java/com/tencent/supersonic/chat/core/agent/Agent.java b/chat/core/src/main/java/com/tencent/supersonic/chat/core/agent/Agent.java
index e9746c396..7f74b798e 100644
--- a/chat/core/src/main/java/com/tencent/supersonic/chat/core/agent/Agent.java
+++ b/chat/core/src/main/java/com/tencent/supersonic/chat/core/agent/Agent.java
@@ -22,7 +22,9 @@ public class Agent extends RecordInfo {
     private String name;
     private String description;
 
-    //0 offline, 1 online
+    /**
+     * 0 offline, 1 online
+     */
     private Integer status;
     private List<String> examples;
     private String agentConfig;
@@ -49,7 +51,7 @@ public class Agent extends RecordInfo {
         return enableSearch != null && enableSearch == 1;
     }
 
-    public boolean containsAllModel(Set<Long> detectModelIds) {
+    public static boolean containsAllModel(Set<Long> detectModelIds) {
         return !CollectionUtils.isEmpty(detectModelIds) && detectModelIds.contains(-1L);
     }
 
diff --git a/chat/core/src/main/java/com/tencent/supersonic/chat/core/mapper/MapperHelper.java b/chat/core/src/main/java/com/tencent/supersonic/chat/core/mapper/MapperHelper.java
index d297f22d7..7c0e01bbc 100644
--- a/chat/core/src/main/java/com/tencent/supersonic/chat/core/mapper/MapperHelper.java
+++ b/chat/core/src/main/java/com/tencent/supersonic/chat/core/mapper/MapperHelper.java
@@ -85,9 +85,12 @@ public class MapperHelper {
     public Set<Long> getModelIds(QueryReq request, Agent agent) {
 
         Long modelId = request.getModelId();
-        Set<Long> detectModelIds = agent.getModelIds(null);
+        Set<Long> detectModelIds = new HashSet<>();
+        if (Objects.nonNull(agent)) {
+            detectModelIds = agent.getModelIds(null);
+        }
         //contains all
-        if (agent.containsAllModel(detectModelIds)) {
+        if (Agent.containsAllModel(detectModelIds)) {
             if (Objects.nonNull(modelId) && modelId > 0) {
                 Set<Long> result = new HashSet<>();
                 result.add(modelId);
diff --git a/chat/core/src/main/java/com/tencent/supersonic/chat/core/parser/sql/llm/LLMRequestService.java b/chat/core/src/main/java/com/tencent/supersonic/chat/core/parser/sql/llm/LLMRequestService.java
index 4d7cba0cc..990bd5863 100644
--- a/chat/core/src/main/java/com/tencent/supersonic/chat/core/parser/sql/llm/LLMRequestService.java
+++ b/chat/core/src/main/java/com/tencent/supersonic/chat/core/parser/sql/llm/LLMRequestService.java
@@ -61,8 +61,12 @@ public class LLMRequestService {
     }
 
     public ModelCluster getModelCluster(QueryContext queryCtx, ChatContext chatCtx) {
-        Set<Long> distinctModelIds = queryCtx.getAgent().getModelIds(AgentToolType.NL2SQL_LLM);
-        if (queryCtx.getAgent().containsAllModel(distinctModelIds)) {
+        Agent agent = queryCtx.getAgent();
+        Set<Long> distinctModelIds = new HashSet<>();
+        if (Objects.nonNull(agent)) {
+            distinctModelIds = agent.getModelIds(AgentToolType.NL2SQL_LLM);
+        }
+        if (Agent.containsAllModel(distinctModelIds)) {
             distinctModelIds = new HashSet<>();
         }
         ModelResolver modelResolver = ComponentFactory.getModelResolver();
@@ -77,7 +81,7 @@ public class LLMRequestService {
         Optional<NL2SQLTool> llmParserTool = commonAgentTools.stream()
                 .filter(tool -> {
                     List<Long> modelIds = tool.getModelIds();
-                    if (agent.containsAllModel(new HashSet<>(modelIds))) {
+                    if (Agent.containsAllModel(new HashSet<>(modelIds))) {
                         return true;
                     }
                     for (Long modelId : modelIdSet) {