Return states in InstructResult.

src/Infrastructure/BotSharp.Abstraction/Instructs/Models/InstructResult.cs

@@ -4,4 +4,5 @@ public class InstructResult
 {
     public string Text { get; set; }
     public object Data { get; set; }
+    public ConversationState States { get; set; }
 }

src/Infrastructure/BotSharp.Core/Routing/RoutingService.InvokeAgent.cs

@@ -62,6 +62,10 @@ public partial class RoutingService
                 response = await InvokeAgent(response.CurrentAgentId);
             }
         }
+        else
+        {
+            response.Role = AgentRole.Assistant;
+        }
 
         return response;
     }

src/Infrastructure/BotSharp.OpenAPI/Controllers/InstructModeController.cs

@@ -46,8 +46,12 @@ public class InstructModeController : ControllerBase, IApiAdapter
         }
 
         var instructor = _services.GetRequiredService<IInstructService>();
-        return await instructor.Execute(agent,
+        var result = await instructor.Execute(agent,
             new RoleDialogModel(AgentRole.User, input.Text));
+
+        result.States = state.GetStates();
+
+        return result; 
     }
 
     [HttpPost("/instruct/text-completion")]

src/WebStarter/data/agents/01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a/instruction.liquid

@@ -3,6 +3,7 @@ You're {{router.name}} ({{router.description}}). Follow these steps to handle us
 2. Select a appropriate function from [FUNCTIONS].
 3. Determine which agent is suitable to handle this conversation.
 4. Re-think about the selected function or agent is the best choice.
+5. For agent required arguments, leave it blank if user doesn't provide it.
 
 [FUNCTIONS]
 {% for handler in routing_handlers %}