Having a plugin trigger on entries.onSaveEntry if a Lightswitch is turned on Essentially I want the plugin to trigger on entries.onSaveEntry which I have working fine at the moment. I want to add a Lightswitch field that will be a condition however. i.e. The plugin will only trigger on save if the Lightswitch entry is turned on.

However I'm having trouble finding use of how to get the status of a field (specifically Lightswitch). Is that data available to be in $event-&gt;params['entry']?

Thank you.
Yes, it's available in $event-&gt;params['entry'].

$entry = $event-&gt;params['entry'];
if ($entry-&gt;myLightswitch) {
    // do things
}