From 042f2299f02e83a4e0f26dffc22e5e8ac3517de1 Mon Sep 17 00:00:00 2001
From: junwen-lee <lijunwen.gigoo@bytedance.com>
Date: Thu, 28 Aug 2025 22:11:44 +0800
Subject: [PATCH] fix(singleagent): chatflow input concat (#1863)

---
 backend/domain/conversation/agentrun/internal/chatflow_run.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/backend/domain/conversation/agentrun/internal/chatflow_run.go b/backend/domain/conversation/agentrun/internal/chatflow_run.go
index 4120a769..87018a85 100644
--- a/backend/domain/conversation/agentrun/internal/chatflow_run.go
+++ b/backend/domain/conversation/agentrun/internal/chatflow_run.go
@@ -21,6 +21,7 @@ import (
 	"errors"
 	"io"
 	"strconv"
+	"strings"
 	"sync"
 
 	"github.com/cloudwego/eino/schema"
@@ -106,7 +107,7 @@ func concatWfInput(rtDependence *AgentRuntime) string {
 			}
 		}
 	}
-	return input
+	return strings.Trim(input, ",")
 }
 
 func (art *AgentRuntime) pullWfStream(ctx context.Context, events *schema.StreamReader[*crossworkflow.WorkflowMessage], mh *MesssageEventHanlder) {