> 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/ban-list.md).

# Ban List

Block specific banned terms or patterns. Use guardrails to control AI output safety and compliance.

**Objective**\
This metric filters out responses containing banned words or phrases, ensuring compliance with content guidelines.

**Interpretation**\
A higher score indicates the response contains banned terms. A lower (or zero) score indicates no banned terms were found.

**Code Execution**

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

**Example**

* **Prompt**: “Tell me a story.”
* **Context**: “Avoid the use of these banned words: \[redacted list].”
* **Response**: “Once upon a time, \[banned word]…”
* **Metric Output**: `{"score": 1, "reason": "Response contains a banned word or phrase."}`