diff --git a/backend/domain/agent/singleagent/internal/agentflow/callback_reply_chunk.go b/backend/domain/agent/singleagent/internal/agentflow/callback_reply_chunk.go
index ffd48bda..ca0ebb81 100644
--- a/backend/domain/agent/singleagent/internal/agentflow/callback_reply_chunk.go
+++ b/backend/domain/agent/singleagent/internal/agentflow/callback_reply_chunk.go
@@ -33,7 +33,6 @@ import (
 	"github.com/coze-dev/coze-studio/backend/api/model/crossdomain/singleagent"
 	"github.com/coze-dev/coze-studio/backend/crossdomain/contract/crossworkflow"
 	"github.com/coze-dev/coze-studio/backend/domain/agent/singleagent/entity"
-	"github.com/coze-dev/coze-studio/backend/pkg/errorx"
 	"github.com/coze-dev/coze-studio/backend/pkg/lang/conv"
 	"github.com/coze-dev/coze-studio/backend/pkg/logs"
 )
@@ -96,14 +95,9 @@ func (r *replyChunkCallback) OnError(ctx context.Context, info *callbacks.RunInf
 			r.sw.Send(interruptEvent, nil)
 
 		} else {
-			logs.CtxErrorf(ctx, "node execute failed, component=%v, name=%v, err=%v",
+			logs.CtxErrorf(ctx, "[AgentRunError] | node execute failed, component=%v, name=%v, err=%v",
 				info.Component, info.Name, err)
-			var customErr errorx.StatusError
-			errMsg := "Internal server error"
-			if errors.As(err, &customErr) && customErr.Code() != 0 {
-				errMsg = customErr.Msg()
-			}
-			r.sw.Send(nil, errors.New(errMsg))
+			r.sw.Send(nil, err)
 		}
 
 	}
diff --git a/backend/domain/conversation/agentrun/service/agent_run_impl.go b/backend/domain/conversation/agentrun/service/agent_run_impl.go
index fbf19b37..0a974ce7 100644
--- a/backend/domain/conversation/agentrun/service/agent_run_impl.go
+++ b/backend/domain/conversation/agentrun/service/agent_run_impl.go
@@ -23,8 +23,10 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"os"
 	"runtime/debug"
 	"strconv"
+	"strings"
 	"sync"
 	"time"
 
@@ -47,6 +49,7 @@ import (
 	"github.com/coze-dev/coze-studio/backend/pkg/lang/ptr"
 	"github.com/coze-dev/coze-studio/backend/pkg/logs"
 	"github.com/coze-dev/coze-studio/backend/pkg/safego"
+	"github.com/coze-dev/coze-studio/backend/types/consts"
 	"github.com/coze-dev/coze-studio/backend/types/errno"
 )
 
@@ -714,9 +717,19 @@ func (c *runImpl) handlerUsage(meta *schema.ResponseMeta) *msgEntity.UsageExt {
 }
 
 func (c *runImpl) handlerErr(_ context.Context, err error, sw *schema.StreamWriter[*entity.AgentRunResponse]) {
+
+	errMsg := errorx.ErrorWithoutStack(err)
+	if strings.ToLower(os.Getenv(consts.RunMode)) != "debug" {
+		var statusErr errorx.StatusError
+		if errors.As(err, &statusErr) {
+			errMsg = statusErr.Msg()
+		} else {
+			errMsg = "Internal Server Error"
+		}
+	}
 	c.runEvent.SendErrEvent(entity.RunEventError, sw, &entity.RunError{
-		Code: errno.ErrConversationAgentRunError,
-		Msg:  errorx.ErrorWithoutStack(err),
+		Code: errno.ErrAgentRun,
+		Msg:  errMsg,
 	})
 }
 
diff --git a/backend/types/consts/consts.go b/backend/types/consts/consts.go
index fd073d4c..c034337e 100644
--- a/backend/types/consts/consts.go
+++ b/backend/types/consts/consts.go
@@ -19,6 +19,7 @@ package consts
 import "time"
 
 const (
+	RunMode            = "RUN_MODE"
 	MySQLDsn           = "MYSQL_DSN"
 	RedisAddr          = "REDIS_ADDR"
 	VeImageXAK         = "VE_IMAGEX_AK"
diff --git a/backend/types/errno/conversation.go b/backend/types/errno/conversation.go
index d94d618f..1d8bdbf3 100644
--- a/backend/types/errno/conversation.go
+++ b/backend/types/errno/conversation.go
@@ -33,9 +33,16 @@ const (
 	ErrInterruptDataEmpty   = 103100005
 
 	ErrConversationMessageNotFound = 103200001
+
+	ErrAgentRun = 103200002
 )
 
 func init() {
+	code.Register(
+		ErrAgentRun,
+		"Interal Server Error",
+		code.WithAffectStability(true),
+	)
 	code.Register(
 		ErrConversationJsonMarshal,
 		"json marshal failed",
diff --git a/docker/.env.debug.example b/docker/.env.debug.example
index 8e89a125..db0f86b4 100644
--- a/docker/.env.debug.example
+++ b/docker/.env.debug.example
@@ -1,3 +1,6 @@
+# run mode
+export RUN_MODE="debug" # Currently supports debug mode. When set to debug, it helps developers print raw error messages during development and debugging, such as agent debugging.
+
 # Server
 export LISTEN_ADDR=":8888"
 export LOG_LEVEL="debug"