Use asterisks around this likely sound effect.
The braces wrap a recognized sound-effect phrase. Confirm the contextual classification before replacing the wrapper.
Example
[Verse]
{laughs}[Verse]
*laughs*The fix
In the workbench this finding carries one control, labelled Replace with *laughs*. The change is contextual, so it is previewed as a diff in your document first and applies only when you confirm it.
Source
The guideline this rule enforces, as cited on every finding it reports:
Sound effects verified Use asterisks rather than braces for sound effects