> ## Documentation Index
> Fetch the complete documentation index at: https://docs.repello.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Advanced Features

### Strict Mode for Configuration (`strict`)

The `strict` parameter on `ArgusClient.create()` controls how the client handles non-critical, client-side configuration errors. This is particularly useful for policies that require non-empty lists of parameters.

* `strict=True`**(Default):**  This is the recommended and safest mode for production. If you enable a policy that requires metadata but provide an invalid configuration (e.g., `BANNED_TOPICS` with an empty `topics` list), the client will immediately raise an `ArgusValueError`. This prevents you from running with a misconfigured policy.

  ```python theme={null}
  # This will raise ArgusValueError because 'topics' cannot be empty.
  try:
      client = ArgusClient.create(
          api_key=API_KEY,
  		url="https://argususapi.repello.ai/sdk/v1",
          strict=True,
          policy={PolicyName.BANNED_TOPICS: {"action": Action.BLOCK, "topics": []}}
      )
  except ArgusValueError as e:
      print(f"Caught expected error: {e}")


  ```
* `strict=False`**:** In the same scenario, the client will instead issue a `UserWarning` and proceed. This can be useful during rapid development or testing but is not recommended for production environments where configuration must be precise.

  ```python theme={null}
  # This will print a UserWarning to the console and create the client.
  import warnings

  with warnings.catch_warnings(record=True) as w:
      warnings.simplefilter("always")
      client = ArgusClient.create(
          api_key=API_KEY,
  		url="https://argususapi.repello.ai/sdk/v1",
          strict=False,
          policy={PolicyName.BANNED_TOPICS: {"action": Action.BLOCK, "topics": []}}
      )
      print(f"Caught expected warning: {w[-1].message}")


  ```