# InitialState

Optional initial disclosure state.

## Signatures

```ts
export interface InitialState {
    readonly open?: boolean;
}
```

## Why

Omission produces a deterministic closed SSR snapshot.

## Ownership and lifetime

Configuration is inert.

## Property: open

Initial open state, defaulting to false.

## Property: open: Why

The value seeds the hydration contract.

## Property: open: Ownership and lifetime

Plain data retains no resources.