---
url: >-
  https://adk.nht.io/api/@nhtio/adk/batteries/artifacts/yaml/variables/jsonToYamlTool.md
description: 'Converter tool: JSON → YAML.'
---

# Variable: jsonToYamlTool

```ts
const jsonToYamlTool: Tool<SpooledYamlArtifact>;
```

Defined in: [src/batteries/artifacts/yaml/index.ts:593](https://github.com/NHTIO/ADK/blob/v1.20260907.0/src/src/batteries/artifacts/yaml/index.ts#L593)

Converter tool: JSON → YAML.

## Remarks

Takes either inline JSON text or a reference to a [SpooledJsonArtifact](../../../../spooled_artifact/classes/SpooledJsonArtifact.md) produced
earlier in the turn. Converts to YAML and returns a fresh [SpooledYamlArtifact](../classes/SpooledYamlArtifact.md)}
immediately queryable with YAML artifact tools.