# Engine.ephemeral
URL: https://lsd.tools/docs/api-engine-ephemeral
Updated: 2026-07-17

## Example

```python
from lsdtools import Engine

engine = Engine.ephemeral()
engine.run(pipeline).raise_on_error()
```

## Notes

Nothing is persisted — the workspace is a throwaway temp directory, so this is the explicit,
readable form for tests and one-off scripts. Equivalent to `Engine()` with no workspace argument.
Call [`save(path)`](/docs/api-engine-save) if you later want to keep the work.

## See also

**API:** [load](/docs/api-engine-load) · [save](/docs/api-engine-save) · [run](/docs/api-engine-run)