# `BeforeCommitContext.cause`

> Contract 2.0.0 · package sha256 `a857eca95b35921109faf997094bb4192f12527d9d0fcd4be7e97f06425bad6e` · generated from `configurator-runtime.d.ts` by `services/onsite-scripter/scripts/build-contract-docs.mjs`; edit the source, not this file.

Property of [`BeforeCommitContext`](BeforeCommitContext.md) · labs, `@experimental` · since 2.0.0

```ts
readonly cause: Cause;
```

The commit being prepared: who made it, its [`origin`](Cause.origin.md) and its kind (undo and redo included).

## Generic-API test (spec 3.1)

| Rule | Result |
| --- | --- |
| 1. Neutral name | pass: `cause` names no product |
| 2. A precedent | pass (through its owner [`BeforeCommitContext`](BeforeCommitContext.md)): [Unity AnimationClip.SampleAnimation](https://docs.unity3d.com/ScriptReference/AnimationClip.SampleAnimation.html) (row `G36`); [Lexical registerNodeTransform](https://lexical.dev/docs/concepts/transforms) (row `G4`); [ProseMirror PluginSpec.appendTransaction](https://prosemirror.net/docs/ref/#state.PluginSpec.appendTransaction) (row `G4`) |
| 3. Two apps, or labs | labs (`@experimental` at a stable path, reached through `has()` or `supports()`): it graduates when a second app uses it; apps today: app-04c2774145, app-4762caacdc, app-f9a32142f1 |
| 4. The cheaper fix first | decided per need in Appendix B: rows `G36`, `G4` (through its owner [`BeforeCommitContext`](BeforeCommitContext.md)) at tier labs, stable (a member only where no rule, data, asset or app code serves the need) |