> For the complete documentation index, see [llms.txt](https://docs.raga.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.raga.ai/ragaai-catalyst/ragaai-metric-library/guardrails/html-sanitisation.md).

# HTML Sanitisation

Strip unsafe HTML from model responses. Prevent injection risks and ensure content safety.

**Objective**\
This metric removes potentially harmful HTML code from text, ensuring safe and secure content.

**Interpretation**\
A higher score indicates harmful or disallowed HTML was detected in the response. A lower (or zero) score indicates no harmful HTML was found.

**Code Execution**

```python
metrics = [
    {
        "name": "HTML Sanitisation",
        "config": {
            "model": "gpt-4o-mini",
            "provider": "openai"
        },
        "column_name": "your-column-identifier",
        "schema_mapping": schema_mapping
    }
]
```

**Example**

* **Prompt**: “Format the response with HTML.”
* **Context**: “We allow basic HTML but disallow scripts or malicious tags.”
* **Response**: “\<script>alert(‘Hacked!’)\</script>”
* **Metric Output**: `{"score": 1, "reason": "Malicious HTML content detected (script tag). Sanitised."}`