issue: ask_user rejects a JSON-string `questions` with a misleading “requires 1-3 questions” error, so small models retry the same call in a

该报错出现在模型调用 Open WebUI 内置工具 ask_user 时,把 questions 参数发成了 JSON 字符串而非数组; normalize_ask_user_request 只检查 list,于是字符串被误报为“requires 1-3 questions”,小模型无法理解错误并





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