---
url: >-
  https://adk.nht.io/api/@nhtio/adk/batteries/storage/flydrive/interfaces/FlydriveSpoolStoreOptions.md
description: 'Constructor options for [`FlydriveSpoolStore`](https://adk.nht.io/api/@nhtio/adk/batteries/storage/flydrive/classes/FlydriveSpoolStore).'
---

# Interface: FlydriveSpoolStoreOptions

Defined in: [batteries/storage/flydrive/index.ts:270](https://github.com/NHTIO/ADK/blob/v1.20260605.0/src/batteries/storage/flydrive/index.ts#L270)

Constructor options for [FlydriveSpoolStore](../classes/FlydriveSpoolStore.md).

## Properties

| Property                                                           | Type     | Default value               | Description                                                                                                                                 | Defined in                                                                                                                              |
| ------------------------------------------------------------------ | -------- | --------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------- |
|  `keyPrefix?`                       | `string` | `""`                        | Optional key prefix prepended to every `callId`. Useful for namespacing tool-call artifacts inside a shared bucket (e.g. `"tool-calls/"`).  | [batteries/storage/flydrive/index.ts:277](https://github.com/NHTIO/ADK/blob/v1.20260605.0/src/batteries/storage/flydrive/index.ts#L277) |
|  `streamThresholdBytes?` | `number` | `10 * 1024 * 1024` (10 MiB) | Default `streamThresholdBytes` for readers produced by `write()` and `read()`. Individual calls may override via their own `opts` argument. | [batteries/storage/flydrive/index.ts:285](https://github.com/NHTIO/ADK/blob/v1.20260605.0/src/batteries/storage/flydrive/index.ts#L285) |