---
url: >-
  https://adk.nht.io/api/@nhtio/adk/batteries/tools/statistics/variables/statsDescribeTool.md
description: Compute descriptive statistics for a JSON array of numbers.
---

# Variable: statsDescribeTool

```ts
const statsDescribeTool: Tool<SpooledJsonArtifact<unknown>>;
```

Defined in: [batteries/tools/statistics/index.ts:55](https://github.com/NHTIO/ADK/blob/v1.20260605.0/src/batteries/tools/statistics/index.ts#L55)

Compute descriptive statistics for a JSON array of numbers.

## Remarks

Returns count, sum, min/max/range, mean, median, mode, variance, standard deviation,
quartiles (Q1/Q2/Q3), IQR, and key percentiles (P10/P90/P95/P99) as a pretty-printed JSON
object. Non-numeric and non-finite entries are silently filtered.