name	arima
description	使用 ARIMA 进行单变量时间序列预测（forecast）
icon	〰️
allowedTools	["get_schema","query_data","run_analysis","generate_chart"]

ARIMA 预测

确认时间列、频率、目标和预测区间，按时间排序并处理缺口。检查平稳性，选择合理参数，使用时间切分验证，输出预测值、区间和误差，并说明外部冲击限制。

Use get_schema to identify the time column, target column, table name, and available covariates.
Use query_data only to verify ordering, missing timestamps, frequency, and enough rows for modeling.
Use run_analysis with analysis_name="Time_Series_ARIMA" for the actual forecast computation.
Use generate_chart on the returned forecast or diagnostic result tables after run_analysis succeeds.

arima