"""공용 유틸리티 (MCP 서버)"""
import json
from config import settings


def _dumps(obj) -> str:
    """토큰 절약 모드에 따라 compact/pretty JSON 직렬화"""
    if settings.JSON_COMPACT or settings.TOKEN_SAVE_MODE:
        return json.dumps(obj, ensure_ascii=False, separators=(',', ':'))
    return json.dumps(obj, ensure_ascii=False, indent=2)