> For AI agents: the complete documentation index is available at /llms.txt, the full documentation bundle is available at /llms-full.txt.

# dev.assetPrefix

- **Type:** `boolean | string | 'auto'`
- **Default:** `'/'`

This configuration item is used to set the URL prefix of static resources in **development mode**.

:::info
The usage of this configuration item is exactly the same as that of Rsbuild. For detailed information, please refer to [Rsbuild - dev.assetPrefix](https://v2.rsbuild.dev/config/dev/asset-prefix).
:::
:::warning
Please note that this configuration item is only applicable in development mode. In production mode, please use the [output.assetPrefix](/configure/app/output/asset-prefix.md) configuration item for setting.
:::