> ## Documentation Index
> Fetch the complete documentation index at: https://colin-feat-client-cache-mode.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# BackendToolConfig

Defined in: [server/apps/FastMCPApp.ts:13](https://github.com/PrefectHQ/fastmcp-ts/blob/8976c37f79efa6b87809b884f29a1f235a8c4ad1/src/server/apps/FastMCPApp.ts#L13)

## Properties

### description

```ts theme={null}
description: string;
```

Defined in: [server/apps/FastMCPApp.ts:15](https://github.com/PrefectHQ/fastmcp-ts/blob/8976c37f79efa6b87809b884f29a1f235a8c4ad1/src/server/apps/FastMCPApp.ts#L15)

***

### name

```ts theme={null}
name: string;
```

Defined in: [server/apps/FastMCPApp.ts:14](https://github.com/PrefectHQ/fastmcp-ts/blob/8976c37f79efa6b87809b884f29a1f235a8c4ad1/src/server/apps/FastMCPApp.ts#L14)

***

### title?

```ts theme={null}
optional title?: string;
```

Defined in: [server/apps/FastMCPApp.ts:16](https://github.com/PrefectHQ/fastmcp-ts/blob/8976c37f79efa6b87809b884f29a1f235a8c4ad1/src/server/apps/FastMCPApp.ts#L16)

***

### visibility?

```ts theme={null}
optional visibility?: Visibility[];
```

Defined in: [server/apps/FastMCPApp.ts:18](https://github.com/PrefectHQ/fastmcp-ts/blob/8976c37f79efa6b87809b884f29a1f235a8c4ad1/src/server/apps/FastMCPApp.ts#L18)

Defaults to \['app']. Pass \['model', 'app'] to also expose to the LLM.