---
document_id: agent.dataset.tmall.task.live_sales_comparison
schema_version: 1
---

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# Live-commerce sales comparison / 直播商品销售比较

Compare monthly atomic sales metrics by the normalized live-commerce indicator.

按归一化后的直播标识比较月度原子销售指标。

## Required inputs / 必要输入

- `time` — `user_required`; required: Analysis time range
  分析时间范围

## Steps / 步骤

1. `query_live_groups` · `query_metrics` — Group sales by live-commerce status.
   按直播状态分组查询销售。
   - metrics: `gmv`, `units`
   - group_by: `is_live`
   - time: `${time}`

## Output requirements / 输出要求

- Show every returned group and label null as unknown.
  展示所有返回分组，并将 null 标为未知。

## Limitations / 限制

- A single observed value is coverage evidence, not a causal comparison.
  单一观测值只代表覆盖情况，不构成因果比较。

## Stop conditions / 停止条件

- Stop if the requested time range is missing.
  缺少时间范围时停止并追问。