# StepFinishedEvent

# Interface: StepFinishedEvent

Defined in: [packages/ai/src/types.ts:1326](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L1326)

Emitted when a thinking/reasoning step finishes.

@ag-ui/core provides: `stepName`

## Extends

- `StepFinishedEvent`

## Indexable

```ts
[k: string]: unknown
```