# PII Detection RAG Metric

**Objective**: This guardrail ensures that any given text does not leak any Personally Identifiable Information. Currently, PIIs supported are:- 'EMAIL\_ADDRESS' and 'URL'. If PII is detected, it will fail with a reason that anonymises the detected PII entities.

**Required Parameters**: `Response`

**Interpretation**: Higher score indicates the model response has PII exposed.

<figure><img src="/files/ybS7VtzodElaYKlUcWir" alt=""><figcaption></figcaption></figure>

**Code Execution:**

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

Model and Provider parameters are not mandatory to run Guardrails.

The "schema\_mapping" variable needs to be defined first and is a pre-requisite for evaluation runs. Learn how to set this variable [here](/ragaai-catalyst/concepts/running-ragaai-evals/executing-evaluations.md).

**Example**:

* Response: John Doe's MRI results were sent to <john.doe@hospital.com>.
* *Metric Output*: {‘score’: 1, ‘reason’: ‘John Doe’s MRI results were sent to EMAIL’}

{% hint style="warning" %}
Model and Provider parameter are not required to run Guardrails
{% endhint %}


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