> ## 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.

# Primary Scan Methods

### `check_content()`

Scans a string of text against a specified or client-default policy. This is the primary method used by the platform's tracing and guardrail system and is recommended for flexible, ad-hoc scans.

**Signature:**

```python theme={null}
def check_content(
    self,
    content: str,
    node_subtype: Optional[NodeSubTypeEnum] = None,
    *,
    name: Optional[str] = None,
    policies: Optional[Policy] = None,
    session_id: Optional[str] = None,
    node_metadata: Optional[Dict[str, Any]] = None,
    save: Optional[bool] = None,
) -> ApiResult
```

**Parameters:**

| Parameter       | Type                        | Default               | Description                                                                                                               |
| :-------------- | :-------------------------- | :-------------------- | :------------------------------------------------------------------------------------------------------------------------ |
| `content`       | `str`                       | (none)                | **Required.** The text content to scan.                                                                                   |
| `node_subtype`  | `Optional[NodeSubTypeEnum]` | `GUARDRAILS`          | **Platform Tier Only.** Specifies the subtype of the node being checked for more granular tracing.                        |
| `name`          | `Optional[str]`             | `"Policy Validation"` | **Platform Tier Only.** A descriptive name for the check, which appears in the platform observability logs.               |
| `policies`      | `Optional[Policy]`          | `None`                | A `Policy` object that, if provided, will be used for this scan *instead of* any default policy configured on the client. |
| `session_id`    | `Optional[str]`             | `None`                | **Platform Tier Only.** A Session ID that, if provided, overrides the client's default `session_id` for this single scan. |
| `node_metadata` | `Optional[Dict[str, Any]]`  | `None`                | **Platform Tier Only.** Custom metadata to attach to the trace span for this specific check.                              |
| `save`          | `Optional[bool]`            | `None`                | **Platform Tier Only.** A boolean that, if provided, overrides the client's default `save` behavior for this single scan. |

**Returns:** An `ApiResult` object detailing the scan results.

### `check_prompt()`

A specialized method that scans a user-generated prompt against the active policy. The active policy is determined by the `policy` override parameter if provided; otherwise, it falls back to the client's default policy.

**Signature:**

```python theme={null}
def check_prompt(
    self,
    prompt: str,
    *,
    policy: Optional[Policy] = None,
    asset_id: Optional[str] = None,
    session_id: Optional[str] = None,
    save: Optional[bool] = None
) -> ApiResult
```

**Parameters:**

| Parameter    | Type               | Default | Description                                                                                                               |
| :----------- | :----------------- | :------ | :------------------------------------------------------------------------------------------------------------------------ |
| `prompt`     | `str`              | (none)  | **Required.** The user-generated prompt text to scan.                                                                     |
| `policy`     | `Optional[Policy]` | `None`  | A `Policy` object that, if provided, will be used for this scan *instead of* any default policy configured on the client. |
| `asset_id`   | `Optional[str]`    | `None`  | **Platform Tier Only.** An Asset ID that, if provided, overrides the client's default `asset_id` for this single scan.    |
| `session_id` | `Optional[str]`    | `None`  | **Platform Tier Only.** A Session ID that, if provided, overrides the client's default `session_id` for this single scan. |
| `save`       | `Optional[bool]`   | `None`  | **Platform Tier Only.** A boolean that, if provided, overrides the client's default `save` behavior for this single scan. |

**Returns:** An `ApiResult` object detailing the scan results.

### `check_response()`

A specialized method that scans an LLM-generated response against the active policy. The active policy is determined by the `policy` override parameter if provided; otherwise, it falls back to the client's default policy.

**Signature:**

```python theme={null}
def check_response(
    self,
    response: str,
    *,
    policy: Optional[Policy] = None,
    asset_id: Optional[str] = None,
    session_id: Optional[str] = None,
    save: Optional[bool] = None
) -> ApiResult
```

**Parameters:**

| Parameter    | Type               | Default | Description                                                                                                               |
| :----------- | :----------------- | :------ | :------------------------------------------------------------------------------------------------------------------------ |
| `response`   | `str`              | (none)  | **Required.** The LLM-generated response text to scan.                                                                    |
| `policy`     | `Optional[Policy]` | `None`  | A `Policy` object that, if provided, will be used for this scan *instead of* any default policy configured on the client. |
| `asset_id`   | `Optional[str]`    | `None`  | **Platform Tier Only.** An Asset ID that, if provided, overrides the client's default `asset_id` for this single scan.    |
| `session_id` | `Optional[str]`    | `None`  | **Platform Tier Only.** A Session ID that, if provided, overrides the client's default `session_id` for this single scan. |
| `save`       | `Optional[bool]`   | `None`  | **Platform Tier Only.** A boolean that, if provided, overrides the client's default `save` behavior for this single scan. |

**Returns:** An `ApiResult` object detailing the scan results.

```
```