diff --git a/src/Plugins/BotSharp.Plugin.KnowledgeBase/Hooks/KnowledgeHook.cs b/src/Plugins/BotSharp.Plugin.KnowledgeBase/Hooks/KnowledgeHook.cs
new file mode 100644
index 00000000..da4add53
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.KnowledgeBase/Hooks/KnowledgeHook.cs
@@ -0,0 +1,105 @@
+namespace BotSharp.Plugin.KnowledgeBase.Hooks;
+
+public class KnowledgeHook : IKnowledgeHook
+{
+    private readonly IKnowledgeService _knowledgeService;
+    private readonly ITextEmbedding _textEmbedding;
+    private readonly IServiceProvider _services;
+
+    public KnowledgeHook(
+        IKnowledgeService knowledgeService,
+        ITextEmbedding textEmbedding,
+        IServiceProvider services)
+    {
+        _knowledgeService = knowledgeService;
+        _textEmbedding = textEmbedding;
+        _services = services;
+    }
+
+    private async Task<List<AgentKnowledgeBase>> GetKnowledgeBaseNameByAgentIdAsync(string agentId)
+    {
+        var agentService = _services.GetRequiredService<IAgentService>();
+        var agent = await agentService.GetAgent(agentId);
+        return agent.KnowledgeBases;
+    }
+
+    public async Task<List<string>> GetDomainKnowledges(RoleDialogModel message, string text)
+    {
+        // Get agent Id by knowledge base name
+        var knowledgeBases = await GetKnowledgeBaseNameByAgentIdAsync(message.CurrentAgentId);
+        var results = new List<string>();
+
+        foreach (var knowledgeBase in knowledgeBases)
+        {
+            if (knowledgeBase.Type == "relationships")
+            {
+                var options = new GraphSearchOptions
+                {
+                    Method = "local"
+                };
+                var result = await _knowledgeService.SearchGraphKnowledge(text, options);
+                results.Add(result.Result);
+            }
+            else
+            {
+                var options = new VectorSearchOptions
+                {
+                    Fields = null,
+                    Limit = 5,
+                    Confidence = 0.5f,
+                    WithVector = true
+                };
+                var result = await _knowledgeService.SearchVectorKnowledge(text, knowledgeBase.Name, options);
+                results.AddRange(result.Where(x => x.Data != null && (x.Data.ContainsKey("text") || x.Data.ContainsKey("answer")))
+                               .Select(x => x.Data.ContainsKey("answer") ? x.Data["text"].ToString() + "\r\n\r\n" + x.Data["answer"].ToString() : x.Data["text"].ToString())
+                               .Where(x => x != null)!);
+
+            }
+        }
+
+        return results;
+    }
+
+    public async Task<List<string>> GetGlobalKnowledges(RoleDialogModel message)
+    {
+        var text = message.Content;
+        var results = new List<string>();
+
+        // Get all knowledge bases
+        var knowledgeBases = await _knowledgeService.GetVectorCollections();
+
+        foreach (var knowledgeBase in knowledgeBases)
+        {
+            if (knowledgeBase.Type == "relationships")
+            {
+                var options = new GraphSearchOptions
+                {
+                    Method = "local"
+                };
+                var result = await _knowledgeService.SearchGraphKnowledge(text, options);
+                results.Add(result.Result);
+            }
+            else
+            {
+                var options = new VectorSearchOptions
+                {
+                    Fields = null,
+                    Limit = 5,
+                    Confidence = 0.5f,
+                    WithVector = true
+                };
+                var result = await _knowledgeService.SearchVectorKnowledge(text, knowledgeBase.Name, options);
+                results.AddRange(result.Where(x => x.Data != null && (x.Data.ContainsKey("text") || x.Data.ContainsKey("answer")))
+                               .Select(x => x.Data.ContainsKey("answer") ? x.Data["text"].ToString() + "\r\n\r\n" + x.Data["answer"].ToString() : x.Data["text"].ToString())
+                               .Where(x => x != null)!);
+            }
+        }
+
+        return results;
+    }
+
+    public async Task<List<KnowledgeChunk>> CollectChunkedKnowledge()
+    {
+        return new List<KnowledgeChunk>();
+    }
+}
\ No newline at end of file
diff --git a/src/Plugins/BotSharp.Plugin.KnowledgeBase/KnowledgeBasePlugin.cs b/src/Plugins/BotSharp.Plugin.KnowledgeBase/KnowledgeBasePlugin.cs
index 8d89daf6..31fa964c 100644
--- a/src/Plugins/BotSharp.Plugin.KnowledgeBase/KnowledgeBasePlugin.cs
+++ b/src/Plugins/BotSharp.Plugin.KnowledgeBase/KnowledgeBasePlugin.cs
@@ -26,6 +26,8 @@ public class KnowledgeBasePlugin : IBotSharpPlugin
         services.AddSingleton<IPdf2TextConverter, PigPdf2TextConverter>();
         services.AddScoped<IAgentUtilityHook, KnowledgeBaseUtilityHook>();
         services.AddScoped<IKnowledgeService, KnowledgeService>();
+        services.AddScoped<IKnowledgeHook, KnowledgeHook>();
+
     }
 
     public bool AttachMenu(List<PluginMenuDef> menu)