> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ctrlrun.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# EffectRecord

> What a StateStore holds for one effect key (ARCHITECTURE §5).

`ctrlrun.EffectRecord` — class, defined at `src/ctrlrun/effect.py:99`

```python theme={null}
class EffectRecord()
    def __init__(effect_key: str, state: EffectState, action_id: str, attempt: int, created_at: datetime, updated_at: datetime, lease_expires_at: datetime | None, result: Any, error: str | None, resolved_by: str | None)
```

What a StateStore holds for one effect key (ARCHITECTURE §5).

## Next

* [Python API index](/reference/api/index).
* [Get started](/get-started/quickstart) · [Why](/why).


## Related topics

- [Python API](/reference/api/index.md)
- [EffectState](/reference/api/EffectState.md)
- [Resolve an AMBIGUOUS effect](/guides/resolve-an-ambiguous-effect.md)
- [Resolve an ambiguous effect](/cookbook/resolve-an-ambiguous-effect.md)
- [AmbiguousEffect](/reference/api/AmbiguousEffect.md)