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

# Camel.agents.critic agent

<a id="camel.agents.critic_agent" />

<a id="camel.agents.critic_agent.CriticAgent" />

## CriticAgent

```python theme={"system"}
class CriticAgent(ChatAgent):
```

A class for the critic agent that assists in selecting an option.

**Parameters:**

* **system\_message** (Union\[BaseMessage, str], optional): The system message for the chat agent. (default: :obj:`None`) model (Union\[BaseModelBackend, Tuple\[str, str], str, ModelType, Tuple\[ModelPlatformType, ModelType], List\[BaseModelBackend], List\[str], List\[ModelType], List\[Tuple\[str, str]], List\[Tuple\[ModelPlatformType, ModelType]]], optional): The model backend(s) to use. Can be a single instance, a specification (string, enum, tuple), or a list of instances or specifications to be managed by `ModelManager`. If a list of specifications (not `BaseModelBackend` instances) is provided, they will be instantiated using `ModelFactory`. (default: :obj:`ModelPlatformType.DEFAULT` with `ModelType.DEFAULT`)
* **message\_window\_size** (int, optional): The maximum number of previous messages to include in the context window. If `None`, no windowing is performed. (default: :obj:`6`)
* **retry\_attempts** (int, optional): The number of retry attempts if the critic fails to return a valid option. (default: :obj:`2`)
* **verbose** (bool, optional): Whether to print the critic's messages.
* **logger\_color** (Any): The color of the menu options displayed to the user. (default: :obj:`Fore.MAGENTA`)

<a id="camel.agents.critic_agent.CriticAgent.__init__" />

### **init**

```python theme={"system"}
def __init__(
    self,
    system_message: Optional[Union[BaseMessage, str]] = None,
    model: Optional[Union[BaseModelBackend, Tuple[str, str], str, ModelType, Tuple[ModelPlatformType, ModelType], List[BaseModelBackend], List[str], List[ModelType], List[Tuple[str, str]], List[Tuple[ModelPlatformType, ModelType]]]] = None,
    memory: Optional[AgentMemory] = None,
    message_window_size: int = 6,
    retry_attempts: int = 2,
    verbose: bool = False,
    logger_color: Any = Fore.MAGENTA
):
```

<a id="camel.agents.critic_agent.CriticAgent.flatten_options" />

### flatten\_options

```python theme={"system"}
def flatten_options(self, messages: Sequence[BaseMessage]):
```

Flattens the options to the critic.

**Parameters:**

* **messages** (Sequence\[BaseMessage]): A list of `BaseMessage` objects.

**Returns:**

str: A string containing the flattened options to the critic.

<a id="camel.agents.critic_agent.CriticAgent.get_option" />

### get\_option

```python theme={"system"}
def get_option(self, input_message: BaseMessage):
```

Gets the option selected by the critic.

**Parameters:**

* **input\_message** (BaseMessage): A `BaseMessage` object representing the input message.

**Returns:**

str: The option selected by the critic.

<a id="camel.agents.critic_agent.CriticAgent.parse_critic" />

### parse\_critic

```python theme={"system"}
def parse_critic(self, critic_msg: BaseMessage):
```

Parses the critic's message and extracts the choice.

**Parameters:**

* **critic\_msg** (BaseMessage): A `BaseMessage` object representing the critic's response.

**Returns:**

Optional\[str]: The critic's choice as a string, or None if the
message could not be parsed.

<a id="camel.agents.critic_agent.CriticAgent.reduce_step" />

### reduce\_step

```python theme={"system"}
def reduce_step(self, input_messages: Sequence[BaseMessage]):
```

Performs one step of the conversation by flattening options to the
critic, getting the option, and parsing the choice.

**Parameters:**

* **input\_messages** (Sequence\[BaseMessage]): A list of BaseMessage objects.

**Returns:**

ChatAgentResponse: A `ChatAgentResponse` object includes the
critic's choice.

<a id="camel.agents.critic_agent.CriticAgent.clone" />

### clone

```python theme={"system"}
def clone(self, with_memory: bool = False):
```

Creates a new instance of :obj:`CriticAgent` with the same
configuration as the current instance.

**Parameters:**

* **with\_memory** (bool): Whether to copy the memory (conversation history) to the new agent. If True, the new agent will have the same conversation history. If False, the new agent will have a fresh memory with only the system message. (default: :obj:`False`)

**Returns:**

CriticAgent: A new instance of :obj:`CriticAgent` with the same
configuration.