claude code tools error

server/internal/proxy/convert/json_chat.go

@@ -230,6 +230,7 @@ func anthropicMsgToChat(role string, content json.RawMessage) []any {
 	var blocks []map[string]any
 	if json.Unmarshal(content, &blocks) == nil && blocks != nil {
 		var out []any
+		var toolMsgs []any // tool_result 单独收集，保证排在 assistant(tool_calls) 之后
 		var textParts []string
 		var contentBlocks []any // text / image_url 块，保留原始顺序
 		var toolCalls []any
@@ -259,7 +260,7 @@ func anthropicMsgToChat(role string, content json.RawMessage) []any {
 			case "tool_result":
 				callID, _ := b["tool_use_id"].(string)
 				res := strField(b["content"])
-				out = append(out, map[string]any{"role": "tool", "tool_call_id": callID, "content": res})
+				toolMsgs = append(toolMsgs, map[string]any{"role": "tool", "tool_call_id": callID, "content": res})
 			}
 		}
 		hasImage := false
@@ -282,6 +283,7 @@ func anthropicMsgToChat(role string, content json.RawMessage) []any {
 			}
 			out = append(out, msg)
 		}
+		out = append(out, toolMsgs...)
 		if len(out) > 0 {
 			return out
 		}