---
title: Simple Content Moderation
type: plugins
category: Validation
cat: validation
order: 105
meta_title: Simple Content Moderation
meta_description: Detect prohibited words in text areas
tier: enterprise
---
!!! note
For information about modifying this plugin or creating your own custom plugins, see [Customize and Build Your Own Plugins](custom).
For general plugin information, see [Plugins for projects](/guide/plugins) and [Plugin FAQ](faq).
## About
This plugin checks to ensure that the annotation does not include obscenity or disallowed words.
In the example below, if a user tries to submit an annotation with the word “hate” added to any audio transcription, they see a pop-up warning.
Note that this is a "soft" block, meaning that the user can dismiss the modal and still proceed. For an example of a "hard" block, see [Validate JSON](json_validation).
## Plugin
```javascript
/**
* Simple content moderation plugin that prevents saving annotations containing hate speech
*
* This plugin monitors text entered into TextArea regions and checks for the word "hate"
* before allowing the annotation to be saved. If found, it shows an error message and
* prevents submission. This would happen only once, if user clicks Submit again it would
* work with no errors.
*
* The plugin uses Label Studio's beforeSaveAnnotation event which is triggered before
* an annotation is saved. Returning false from this event handler prevents the save
* operation from completing.
*/
let dismissed = false;
LSI.on("beforeSaveAnnotation", (store, ann) => {
// text in TextArea is always an array
const obscene = ann.results.find(
(r) =>
r.type === "textarea" && r.value.text.some((t) => t.includes("hate")),
);
if (!obscene || dismissed) return true;
// select region to see textarea
if (!obscene.area.classification) ann.selectArea(obscene.area);
Htx.showModal("The word 'hate' is disallowed", "error");
dismissed = true;
return false;
});
```
**Related LSI instance methods:**
* [on(eventName, handler)](custom#LSI-on-eventName-handler)
**Related frontend events:**
* [beforeSaveAnnotation](/guide/frontend_reference#beforeSaveAnnotation)
## Labeling config
```xml
```
**Related tags:**
* [View](/tags/view.html)
* [Labels](/tags/labels.html)
* [Audio](/tags/audio.html)
* [TextArea](/tags/textarea.html)
## Sample data
```json
[
{
"audio": "https://data.heartex.net/librispeech/dev-clean/3536/8226/3536-8226-0024.flac.wav"
}
]
```
!!! note
For information about modifying this plugin or creating your own custom plugins, see [Customize and Build Your Own Plugins](custom).
For general plugin information, see [Plugins for projects](/guide/plugins) and [Plugin FAQ](faq).
## About
This plugin checks to ensure that the annotation does not include obscenity or disallowed words.
In the example below, if a user tries to submit an annotation with the word “hate” added to any audio transcription, they see a pop-up warning.
Note that this is a "soft" block, meaning that the user can dismiss the modal and still proceed. For an example of a "hard" block, see [Validate JSON](json_validation).
## Plugin
```javascript
/**
* Simple content moderation plugin that prevents saving annotations containing hate speech
*
* This plugin monitors text entered into TextArea regions and checks for the word "hate"
* before allowing the annotation to be saved. If found, it shows an error message and
* prevents submission. This would happen only once, if user clicks Submit again it would
* work with no errors.
*
* The plugin uses Label Studio's beforeSaveAnnotation event which is triggered before
* an annotation is saved. Returning false from this event handler prevents the save
* operation from completing.
*/
let dismissed = false;
LSI.on("beforeSaveAnnotation", (store, ann) => {
// text in TextArea is always an array
const obscene = ann.results.find(
(r) =>
r.type === "textarea" && r.value.text.some((t) => t.includes("hate")),
);
if (!obscene || dismissed) return true;
// select region to see textarea
if (!obscene.area.classification) ann.selectArea(obscene.area);
Htx.showModal("The word 'hate' is disallowed", "error");
dismissed = true;
return false;
});
```
**Related LSI instance methods:**
* [on(eventName, handler)](custom#LSI-on-eventName-handler)
**Related frontend events:**
* [beforeSaveAnnotation](/guide/frontend_reference#beforeSaveAnnotation)
## Labeling config
```xml