CAMEL - Build Multi-Agent AI Systems

_cleanup_temp_files

def _cleanup_temp_files():

StreamContentAccumulator

class StreamContentAccumulator:

Manages content accumulation across streaming responses to ensure all responses contain complete cumulative content.

init

def __init__(self):

set_base_content

def set_base_content(self, content: str):

Set the base content (usually empty or pre-tool content).

add_streaming_content

def add_streaming_content(self, new_content: str):

Add new streaming content.

add_reasoning_content

def add_reasoning_content(self, new_reasoning: str):

Add new reasoning content.

add_tool_status

def add_tool_status(self, status_message: str):

Add a tool status message.

get_full_content

def get_full_content(self):

Get the complete accumulated content.

get_full_reasoning_content

def get_full_reasoning_content(self):

Get the complete accumulated reasoning content.

get_content_with_new_status

def get_content_with_new_status(self, status_message: str):

Get content with a new status message appended.

reset_streaming_content

def reset_streaming_content(self):

Reset only the streaming content, keep base and tool status.

StreamingChatAgentResponse

class StreamingChatAgentResponse:

A wrapper that makes streaming responses compatible with non-streaming code. This class wraps a Generator[ChatAgentResponse, None, None] and provides the same interface as ChatAgentResponse, so existing code doesn’t need to change.

init

def __init__(self, generator: Generator[ChatAgentResponse, None, None]):

_ensure_latest_response

def _ensure_latest_response(self):

Ensure we have the latest response by consuming the generator.

msgs

def msgs(self):

Get messages from the latest response.

terminated

def terminated(self):

Get terminated status from the latest response.

info

def info(self):

Get info from the latest response.

msg

def msg(self):

Get the single message if there’s exactly one message.

iter

def __iter__(self):

Make this object iterable.

getattr

def __getattr__(self, name):

Forward any other attribute access to the latest response.

AsyncStreamingChatAgentResponse

class AsyncStreamingChatAgentResponse:

A wrapper that makes async streaming responses awaitable and compatible with non-streaming code. This class wraps an AsyncGenerator[ChatAgentResponse, None] and provides both awaitable and async iterable interfaces.

init

def __init__(self, async_generator: AsyncGenerator[ChatAgentResponse, None]):

await

def __await__(self):

Make this object awaitable - returns the final response.

aiter

def __aiter__(self):

Make this object async iterable.

ChatAgent

class ChatAgent(BaseAgent):

Class for managing conversations of CAMEL Chat Agents. 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)
memory (AgentMemory, optional): The agent memory for managing chat messages. If None, a :obj:ChatHistoryMemory will be used. (default: :obj:None)
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:None)
summarize_threshold (int, optional): The percentage of the context window that triggers summarization. If None, will trigger summarization when the context window is full. (default: :obj:None)
token_limit (int, optional): The maximum number of tokens allowed for the context window. If None, uses the model’s default token limit. This can be used to restrict the context size below the model’s maximum capacity. (default: :obj:None)
output_language (str, optional): The language to be output by the agent. (default: :obj:None)
tools (Optional[List[Union[FunctionTool, Callable]]], optional): List of available :obj:FunctionTool or :obj:Callable. (default: :obj:None) toolkits_to_register_agent (Optional[List[RegisteredAgentToolkit]], optional): List of toolkit instances that inherit from :obj:RegisteredAgentToolkit. The agent will register itself with these toolkits, allowing them to access the agent instance. Note: This does NOT add the toolkit’s tools to the agent. To use tools from these toolkits, pass them explicitly via the tools parameter. (default: :obj:None) external_tools (Optional[List[Union[FunctionTool, Callable, Dict[str, Any]]]], optional): List of external tools (:obj:FunctionTool or :obj:Callable or :obj:Dict[str, Any]) bind to one chat agent. When these tools are called, the agent will directly return the request instead of processing it. (default: :obj:None)
response_terminators (List[ResponseTerminator], optional): List of :obj:ResponseTerminator to check if task is complete. When set, the agent will keep prompting the model until a terminator signals completion. Note: You must define the termination signal (e.g., a keyword) in your system prompt so the model knows what to output. (default: :obj:None)
scheduling_strategy (str): name of function that defines how to select the next model in ModelManager. (default: :str:round_robin)
max_iteration (Optional[int], optional): Maximum number of model calling iterations allowed per step. If None (default), there’s no explicit limit. If 1, it performs a single model call. If N > 1, it allows up to N model calls. (default: :obj:None)
agent_id (str, optional): The ID of the agent. If not provided, a random UUID will be generated. (default: :obj:None)
stop_event (Optional[threading.Event], optional): Event to signal termination of the agent’s operation. When set, the agent will terminate its execution. (default: :obj:None)
tool_execution_timeout (Optional[float], optional): Timeout for individual tool execution. If None, wait indefinitely.
mask_tool_output (Optional[bool]): Whether to return a sanitized placeholder instead of the raw tool output. (default: :obj:False)
pause_event (Optional[Union[threading.Event, asyncio.Event]]): Event to signal pause of the agent’s operation. When clear, the agent will pause its execution. Use threading.Event for sync operations or asyncio.Event for async operations. (default: :obj:None)
prune_tool_calls_from_memory (bool): Whether to clean tool call messages from memory after response generation to save token usage. When enabled, removes FUNCTION/TOOL role messages and ASSISTANT messages with tool_calls after each step. (default: :obj:False)
enable_snapshot_clean (bool, optional): Whether to clean snapshot markers and references from historical tool outputs in memory. This removes verbose DOM markers (like [ref=…]) from older tool results while keeping the latest output intact for immediate use. (default: :obj:False)
retry_attempts (int, optional): Maximum number of retry attempts for rate limit errors. (default: :obj:3)
retry_delay (float, optional): Initial delay in seconds between retries. Uses exponential backoff. (default: :obj:1.0)
step_timeout (Optional[float], optional): Timeout in seconds for the entire step operation. If None, no timeout is applied. (default: :obj:None)
stream_accumulate (Optional[bool], optional): When True, partial streaming updates return accumulated content. When False, partial updates return only the incremental delta (recommended). If None, defaults to False with a deprecation warning for users who previously relied on the old default (True). (default: :obj:None, which behaves as :obj:False)
summary_window_ratio (float, optional): Maximum fraction of the total context window that can be occupied by summary information. Used to limit how much of the model’s context is reserved for summarization results. (default: :obj:0.6)

init

def __init__(
    self,
    system_message: Optional[Union[BaseMessage, str]] = None,
    model: Optional[Union[BaseModelBackend, ModelManager, 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: Optional[int] = None,
    summarize_threshold: Optional[int] = 50,
    token_limit: Optional[int] = None,
    output_language: Optional[str] = None,
    tools: Optional[List[Union[FunctionTool, Callable]]] = None,
    toolkits_to_register_agent: Optional[List[RegisteredAgentToolkit]] = None,
    external_tools: Optional[List[Union[FunctionTool, Callable, Dict[str, Any]]]] = None,
    response_terminators: Optional[List[ResponseTerminator]] = None,
    scheduling_strategy: str = 'round_robin',
    max_iteration: Optional[int] = None,
    agent_id: Optional[str] = None,
    stop_event: Optional[threading.Event] = None,
    tool_execution_timeout: Optional[float] = Constants.TIMEOUT_THRESHOLD,
    mask_tool_output: bool = False,
    pause_event: Optional[Union[threading.Event, asyncio.Event]] = None,
    prune_tool_calls_from_memory: bool = False,
    enable_snapshot_clean: bool = False,
    retry_attempts: int = 3,
    retry_delay: float = 1.0,
    step_timeout: Optional[float] = Constants.TIMEOUT_THRESHOLD,
    stream_accumulate: Optional[bool] = None,
    summary_window_ratio: float = 0.6
):

reset

def reset(self):

Resets the :obj:ChatAgent to its initial state.

_update_token_cache

def _update_token_cache(self, usage_dict: Dict[str, Any], message_count: int):

Update the token count cache from LLM response usage. Parameters:

usage_dict (Dict[str, Any]): Usage dictionary from LLM response.
message_count (int): Number of messages sent to the LLM.

_resolve_models

def _resolve_models(
    self,
    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]]]]
):

Resolves model specifications into model backend instances. This method handles various input formats for model specifications and returns the appropriate model backend(s). Parameters:

model: Model specification in various formats including single model, list of models, or model type specifications.

Returns: Union[BaseModelBackend, List[BaseModelBackend]]: Resolved model backend(s).

_resolve_model_list

def _resolve_model_list(self, model_list: list):

Resolves a list of model specifications into model backend instances. Parameters:

model_list (list): List of model specifications in various formats.

Returns: Union[BaseModelBackend, List[BaseModelBackend]]: Resolved model backend(s).

system_message

def system_message(self):

Returns the system message for the agent.

tool_dict

def tool_dict(self):

Returns a dictionary of internal tools.

token_limit

def token_limit(self):

Returns the token limit for the agent’s context window.

output_language

def output_language(self):

Returns the output language for the agent.

output_language

def output_language(self, value: str):

Set the output language for the agent. Note that this will clear the message history.

memory

def memory(self):

Returns the agent memory.

memory

def memory(self, value: AgentMemory):

Set the agent memory. When setting a new memory, the system message is automatically added after existing system messages, while preserving existing memory data. Parameters:

value (AgentMemory): The new agent memory to use.

set_context_utility

def set_context_utility(self, context_utility: Optional[ContextUtility]):

Set the context utility for the agent. This allows external components (like SingleAgentWorker) to provide a shared context utility instance for workflow management. Parameters:

context_utility (ContextUtility, optional): The context utility to use. If None, the agent will create its own when needed.

_get_full_tool_schemas

def _get_full_tool_schemas(self):

Returns a list of tool schemas of all tools, including internal and external tools.

_serialize_tool_args

def _serialize_tool_args(args: Dict[str, Any]):

_build_tool_signature

def _build_tool_signature(cls, func_name: str, args: Dict[str, Any]):

_describe_tool_call

def _describe_tool_call(self, record: Optional[ToolCallingRecord]):

_update_last_tool_call_state

def _update_last_tool_call_state(self, record: Optional[ToolCallingRecord]):

Track the most recent tool call and its identifying signature.

_append_user_messages_section

def _append_user_messages_section(summary_content: str, user_messages: List[str]):

_reset_summary_state

def _reset_summary_state(self):

_get_context_with_summarization

def _get_context_with_summarization(self):

Get context and trigger summarization if needed.

_calculate_next_summary_threshold

def _calculate_next_summary_threshold(self):

Returns: int: The token count threshold for next summarization.

_update_memory_with_summary

def _update_memory_with_summary(self, summary: str, include_summaries: bool = False):

Update memory with summary result. This method handles memory clearing and restoration of summaries based on whether it’s a progressive or full compression.

_get_external_tool_names

def _get_external_tool_names(self):

Returns a set of external tool names.

add_tool

def add_tool(self, tool: Union[FunctionTool, Callable]):

Add a tool to the agent.

add_tools

def add_tools(self, tools: List[Union[FunctionTool, Callable]]):

Add a list of tools to the agent.

_serialize_tool_result

def _serialize_tool_result(self, result: Any):

_truncate_tool_result

def _truncate_tool_result(self, func_name: str, result: Any):

Truncate tool result if it exceeds the maximum token limit. Parameters:

func_name (str): The name of the tool function called.
result (Any): The result returned by the tool execution.

Returns: Tuple[Any, bool]: A tuple containing:

The (possibly truncated) result
A boolean indicating whether truncation occurred

_clean_snapshot_line

def _clean_snapshot_line(self, line: str):

Clean a single snapshot line by removing prefixes and references. This method handles snapshot lines in the format:

[prefix] “quoted text” [attributes] [ref=…]: description

It preserves:

Quoted text content (including brackets inside quotes)
Description text after the colon

It removes:

Line prefixes (e.g., ”- button”, ”- tooltip”, “generic:”)
Attribute markers (e.g., [disabled], [ref=e47])
Lines with only element types
All indentation

Parameters:

line: The original line content.

Returns: The cleaned line content, or empty string if line should be removed.

_clean_snapshot_content

def _clean_snapshot_content(self, content: str):

Clean snapshot content by removing prefixes, references, and deduplicating lines. This method identifies snapshot lines (containing element keywords or references) and cleans them while preserving non-snapshot content. It also handles JSON-formatted tool outputs with snapshot fields. Parameters:

content: The original snapshot content.

Returns: The cleaned content with deduplicated lines.

_clean_text_snapshot

def _clean_text_snapshot(self, content: str):

Clean plain text snapshot content. This method:

Removes all indentation
Deletes empty lines
Deduplicates all lines
Cleans snapshot-specific markers

Parameters:

content: The original snapshot text.

Returns: The cleaned content with deduplicated lines, no indentation, and no empty lines.

_register_tool_output_for_cache

def _register_tool_output_for_cache(
    self,
    func_name: str,
    tool_call_id: str,
    result_text: str,
    records: List[MemoryRecord]
):

_process_tool_output_cache

def _process_tool_output_cache(self):

_clean_snapshot_in_memory

def _clean_snapshot_in_memory(self, entry: _ToolOutputHistoryEntry):

add_external_tool

def add_external_tool(self, tool: Union[FunctionTool, Callable, Dict[str, Any]]):

remove_tool

def remove_tool(self, tool_name: str):

Remove a tool from the agent by name. Parameters:

tool_name (str): The name of the tool to remove.

Returns: bool: Whether the tool was successfully removed.

remove_tools

def remove_tools(self, tool_names: List[str]):

Remove a list of tools from the agent by name.

remove_external_tool

def remove_external_tool(self, tool_name: str):

Remove an external tool from the agent by name. Parameters:

tool_name (str): The name of the tool to remove.

Returns: bool: Whether the tool was successfully removed.

update_memory

def update_memory(
    self,
    message: BaseMessage,
    role: OpenAIBackendRole,
    timestamp: Optional[float] = None,
    return_records: bool = False
):

Updates the agent memory with a new message. Parameters:

message (BaseMessage): The new message to add to the stored messages.
role (OpenAIBackendRole): The backend role type.
timestamp (Optional[float], optional): Custom timestamp for the memory record. If None, the current time will be used. (default: :obj:None)
return_records (bool, optional): When __INLINE_CODE_0____INLINE_CODE_1__False)

Returns: Optional[List[MemoryRecord]]: The records that were written when __INLINE_CODE_0____INLINE_CODE_1____INLINE_CODE_2____INLINE_CODE_3____INLINE_CODE_4__.

load_memory

def load_memory(self, memory: AgentMemory):

Load the provided memory into the agent. Parameters:

memory (AgentMemory): The memory to load into the agent.

Returns: None

load_memory_from_path

def load_memory_from_path(self, path: str):

Loads memory records from a JSON file filtered by this agent’s ID. Parameters:

path (str): The file path to a JSON memory file that uses JsonStorage.

save_memory

def save_memory(self, path: str):

Retrieves the current conversation data from memory and writes it into a JSON file using JsonStorage. Parameters:

path (str): Target file path to store JSON data.

summarize

def summarize(
    self,
    filename: Optional[str] = None,
    summary_prompt: Optional[str] = None,
    response_format: Optional[Type[BaseModel]] = None,
    working_directory: Optional[Union[str, Path]] = None,
    include_summaries: bool = False,
    add_user_messages: bool = True
):

Summarize the agent’s current conversation context and persist it to a markdown file. .. deprecated:: 0.2.80 Use :meth:asummarize for async/await support and better performance in parallel summarization workflows. Parameters:

filename (Optional[str]): The base filename (without extension) to use for the markdown file. Defaults to a timestamped name when not provided.
summary_prompt (Optional[str]): Custom prompt for the summarizer. When omitted, a default prompt highlighting key decisions, action items, and open questions is used.
response_format (Optional[Type[BaseModel]]): A Pydantic model defining the expected structure of the response. If provided, the summary will be generated as structured output and included in the result.
include_summaries (bool): Whether to include previously generated summaries in the content to be summarized. If False (default), only non-summary messages will be summarized. If True, all messages including previous summaries will be summarized (full compression). (default: :obj:False)
working_directory (Optional[str|Path]): Optional directory to save the markdown summary file. If provided, overrides the default directory used by ContextUtility.
add_user_messages (bool): Whether add user messages to summary. (default: :obj:True)

Returns: Dict[str, Any]: A dictionary containing the summary text, file path, status message, and optionally structured_summary if response_format was provided. See Also: :meth:asummarize: Async version for non-blocking LLM calls.

_build_conversation_text_from_messages

def _build_conversation_text_from_messages(self, messages: List[Any], include_summaries: bool = False):

Build conversation text from messages for summarization. This is a shared helper method that converts messages to a formatted conversation text string, handling tool calls, tool results, and regular messages. Parameters:

messages (List[Any]): List of messages to convert.
include_summaries (bool): Whether to include messages starting with [CONTEXT_SUMMARY]. (default: :obj:False)

Returns: tuple[str, List[str]]: A tuple containing:

Formatted conversation text
List of user messages extracted from the conversation

clear_memory

def clear_memory(self, reset_summary_state: bool = True):

Clear the agent’s memory and reset to initial state. Parameters:

reset_summary_state (bool): Whether to reset the summary token count. Set to False when preserving summary state during summarization. Defaults to True for full memory clearing.

_generate_system_message_for_output_language

def _generate_system_message_for_output_language(self):

Returns: BaseMessage: The new system message.

init_messages

def init_messages(self):

Initializes the stored messages list with the current system message.

update_system_message

def update_system_message(
    self,
    system_message: Union[BaseMessage, str],
    reset_memory: bool = True
):

Update the system message. It will reset conversation with new system message. Parameters:

system_message (Union[BaseMessage, str]): The new system message. Can be either a BaseMessage object or a string. If a string is provided, it will be converted into a BaseMessage object.
reset_memory (bool): Whether to reinitialize conversation messages after updating the system message. Defaults to True.

append_to_system_message

def append_to_system_message(self, content: str, reset_memory: bool = True):

Append additional context to existing system message. Parameters:

content (str): The additional system message.
reset_memory (bool): Whether to reinitialize conversation messages after appending additional context. Defaults to True.

reset_to_original_system_message

def reset_to_original_system_message(self):

Reset system message to original, removing any appended context. This method reverts the agent’s system message back to its original state, removing any workflow context or other modifications that may have been appended. Useful for resetting agent state in multi-turn scenarios.

record_message

def record_message(self, message: BaseMessage):

Records the externally provided message into the agent memory as if it were an answer of the :obj:ChatAgent from the backend. Currently, the choice of the critic is submitted with this method. Parameters:

message (BaseMessage): An external message to be recorded in the memory.

_try_format_message

def _try_format_message(self, message: BaseMessage, response_format: Type[BaseModel]):

Returns: bool: Whether the message is formatted successfully (or no format is needed).

_check_tools_strict_compatibility

def _check_tools_strict_compatibility(self):

Returns: bool: True if all tools are strict mode compatible, False otherwise.

_convert_response_format_to_prompt

def _convert_response_format_to_prompt(self, response_format: Type[BaseModel]):

Convert a Pydantic response format to a prompt instruction. Parameters:

response_format (Type[BaseModel]): The Pydantic model class.

Returns: str: A prompt instruction requesting the specific format.

_handle_response_format_with_non_strict_tools

def _handle_response_format_with_non_strict_tools(
    self,
    input_message: Union[BaseMessage, str],
    response_format: Optional[Type[BaseModel]] = None
):

Handle response format when tools are not strict mode compatible. Parameters:

input_message: The original input message.
response_format: The requested response format.

Returns: Tuple: (modified_message, modified_response_format, used_prompt_formatting)

_is_called_from_registered_toolkit

def _is_called_from_registered_toolkit(self):

Returns: bool: True if called from a RegisteredAgentToolkit, False otherwise

_apply_prompt_based_parsing

def _apply_prompt_based_parsing(
    self,
    response: ModelResponse,
    original_response_format: Type[BaseModel]
):

Apply manual parsing when using prompt-based formatting. Parameters:

response: The model response to parse.
original_response_format: The original response format class.

_format_response_if_needed

def _format_response_if_needed(
    self,
    response: ModelResponse,
    response_format: Optional[Type[BaseModel]] = None
):

Format the response if needed. This function won’t format the response under the following cases:

The response format is None (not provided)
The response is empty

step

def step(
    self,
    input_message: Union[BaseMessage, str],
    response_format: Optional[Type[BaseModel]] = None
):

Executes a single step in the chat session, generating a response to the input message. Parameters:

input_message (Union[BaseMessage, str]): The input message for the agent. If provided as a BaseMessage, the role is adjusted to user to indicate an external message.
response_format (Optional[Type[BaseModel]], optional): A Pydantic model defining the expected structure of the response. Used to generate a structured response if provided. (default: :obj:None)

Returns: Union[ChatAgentResponse, StreamingChatAgentResponse]: If stream is False, returns a ChatAgentResponse. If stream is True, returns a StreamingChatAgentResponse that behaves like ChatAgentResponse but can also be iterated for streaming updates.

_step_impl

def _step_impl(
    self,
    input_message: Union[BaseMessage, str],
    response_format: Optional[Type[BaseModel]] = None
):

Implementation of non-streaming step logic.

chat_history

def chat_history(self):

_create_token_usage_tracker

def _create_token_usage_tracker(self):

Returns: Dict[str, int]: A dictionary for tracking token usage.

_update_token_usage_tracker

def _update_token_usage_tracker(self, tracker: Dict[str, int], usage_dict: Dict[str, int]):

Updates a token usage tracker with values from a usage dictionary. Parameters:

tracker (Dict[str, int]): The token usage tracker to update.
usage_dict (Dict[str, int]): The usage dictionary with new values.

_convert_to_chatagent_response

def _convert_to_chatagent_response(
    self,
    response: ModelResponse,
    tool_call_records: List[ToolCallingRecord],
    num_tokens: int,
    external_tool_call_requests: Optional[List[ToolCallRequest]],
    step_api_prompt_tokens: int = 0,
    step_api_completion_tokens: int = 0,
    step_api_total_tokens: int = 0
):

Parse the final model response into the chat agent response.

_record_final_output

def _record_final_output(self, output_messages: List[BaseMessage]):

Log final messages or warnings about multiple responses.

_get_model_response

def _get_model_response(
    self,
    openai_messages: List[OpenAIMessage],
    current_iteration: int = 0,
    response_format: Optional[Type[BaseModel]] = None,
    tool_schemas: Optional[List[Dict[str, Any]]] = None,
    prev_num_openai_messages: int = 0
):

Internal function for agent step model response.

_sanitize_messages_for_logging

def _sanitize_messages_for_logging(self, messages, prev_num_openai_messages: int):

Sanitize OpenAI messages for logging by replacing base64 image data with a simple message and a link to view the image. Parameters:

messages (List[OpenAIMessage]): The OpenAI messages to sanitize.
prev_num_openai_messages (int): The number of openai messages logged in the previous iteration.

Returns: List[OpenAIMessage]: The sanitized OpenAI messages.

_step_get_info

def _step_get_info(
    self,
    output_messages: List[BaseMessage],
    finish_reasons: List[str],
    usage_dict: Dict[str, int],
    response_id: str,
    tool_calls: List[ToolCallingRecord],
    num_tokens: int,
    external_tool_call_requests: Optional[List[ToolCallRequest]] = None
):

Process the output of a chat step and gather information about the step. This method checks for termination conditions, updates the agent’s state, and collects information about the chat step, including tool calls and termination reasons. Parameters:

output_messages (List[BaseMessage]): The messages generated in this step.
finish_reasons (List[str]): The reasons for finishing the generation for each message.
usage_dict (Dict[str, int]): Dictionary containing token usage information.
response_id (str): The ID of the response from the model.
tool_calls (List[ToolCallingRecord]): Records of function calls made during this step.
num_tokens (int): The number of tokens used in this step.
external_tool_call_request (Optional[ToolCallRequest]): The request for external tool call.

Returns: Dict[str, Any]: A dictionary containing information about the chat step, including termination status, reasons, and tool call information. Note: This method iterates over all response terminators and checks if any of them signal termination. If a terminator signals termination, the agent’s state is updated accordingly, and the termination reason is recorded.

_handle_batch_response

def _handle_batch_response(self, response: ChatCompletion):

Process a batch response from the model and extract the necessary information. Parameters:

response (ChatCompletion): Model response.

Returns: _ModelResponse: parsed model response.

_step_terminate

def _step_terminate(
    self,
    num_tokens: int,
    tool_calls: List[ToolCallingRecord],
    termination_reason: str
):

Create a response when the agent execution is terminated. This method is called when the agent needs to terminate its execution due to various reasons such as token limit exceeded, or other termination conditions. It creates a response with empty messages but includes termination information in the info dictionary. Parameters:

num_tokens (int): Number of tokens in the messages.
tool_calls (List[ToolCallingRecord]): List of information objects of functions called in the current step.
termination_reason (str): String describing the reason for termination.

Returns: ChatAgentResponse: A response object with empty message list, terminated flag set to True, and an info dictionary containing termination details, token counts, and tool call information.

_execute_tool

def _execute_tool(self, tool_call_request: ToolCallRequest):

Execute the tool with arguments following the model’s response. Parameters:

tool_call_request (_ToolCallRequest): The tool call request.

Returns: FunctionCallingRecord: A struct for logging information about this function call.

_record_tool_calling

def _record_tool_calling(
    self,
    func_name: str,
    args: Dict[str, Any],
    result: Any,
    tool_call_id: str,
    mask_output: bool = False,
    extra_content: Optional[Dict[str, Any]] = None
):

Record the tool result in the memory. Parameters:

func_name (str): The name of the tool function called.
args (Dict[str, Any]): The arguments passed to the tool.
result (Any): The result returned by the tool execution.
tool_call_id (str): A unique identifier for the tool call.
mask_output (bool, optional): Whether to return a sanitized placeholder instead of the raw tool output. (default: :obj:False)
extra_content (Optional[Dict[str, Any]], optional): Additional content associated with the tool call. (default: :obj:None)

Returns: ToolCallingRecord: A struct containing information about this tool call.

_stream

def _stream(
    self,
    input_message: Union[BaseMessage, str],
    response_format: Optional[Type[BaseModel]] = None
):

Executes a streaming step in the chat session, yielding intermediate responses as they are generated. Parameters:

input_message (Union[BaseMessage, str]): The input message for the agent.
response_format (Optional[Type[BaseModel]], optional): A Pydantic model defining the expected structure of the response.
Yields:
ChatAgentResponse: Intermediate responses containing partial content, tool calls, and other information as they become available.

_get_token_count

def _get_token_count(self, content: str):

Get token count for content with fallback.

_warn_stream_accumulate_deprecation

def _warn_stream_accumulate_deprecation(self):

Issue deprecation warning for stream_accumulate default change. Only warns once per agent instance, and only if the user didn’t explicitly set stream_accumulate.

_stream_response

def _stream_response(
    self,
    openai_messages: List[OpenAIMessage],
    num_tokens: int,
    response_format: Optional[Type[BaseModel]] = None
):

Internal method to handle streaming responses with tool calls.

_process_stream_chunks_with_accumulator

def _process_stream_chunks_with_accumulator(
    self,
    stream: Stream[ChatCompletionChunk],
    content_accumulator: StreamContentAccumulator,
    accumulated_tool_calls: Dict[str, Any],
    tool_call_records: List[ToolCallingRecord],
    step_token_usage: Dict[str, int],
    response_format: Optional[Type[BaseModel]] = None
):

Process streaming chunks with content accumulator.

_accumulate_tool_calls

def _accumulate_tool_calls(
    self,
    tool_call_deltas: List[Any],
    accumulated_tool_calls: Dict[str, Any]
):

Accumulate tool call chunks and return True when any tool call is complete. Parameters:

tool_call_deltas (List[Any]): List of tool call deltas.
accumulated_tool_calls (Dict[str, Any]): Dictionary of accumulated tool calls.

Returns: bool: True if any tool call is complete, False otherwise.

_execute_tools_sync_with_status_accumulator

def _execute_tools_sync_with_status_accumulator(
    self,
    accumulated_tool_calls: Dict[str, Any],
    tool_call_records: List[ToolCallingRecord]
):

Execute multiple tools synchronously with proper content accumulation, using ThreadPoolExecutor for better timeout handling.

_execute_tool_from_stream_data

def _execute_tool_from_stream_data(self, tool_call_data: Dict[str, Any]):

Execute a tool from accumulated stream data. Note: calling this method (via _record_assistant_tool_calls_message). This method only records the tool result message.

_create_error_response

def _create_error_response(
    self,
    error_message: str,
    tool_call_records: List[ToolCallingRecord]
):

Create an error response for streaming.

_record_assistant_tool_calls_message

def _record_assistant_tool_calls_message(self, accumulated_tool_calls: Dict[str, Any], content: str = ''):

Record the assistant message that contains tool calls. This method creates and records an assistant message that includes the tool calls information, which is required by OpenAI’s API format.

_record_assistant_tool_calls_from_requests

def _record_assistant_tool_calls_from_requests(
    self,
    tool_call_requests: List['ToolCallRequest'],
    content: str = ''
):

Record assistant message with tool calls from requests. This method creates and records an assistant message that includes all the tool calls from a list of ToolCallRequest objects. Used for non-streaming tool execution to ensure proper message sequence. Parameters:

tool_call_requests: List of tool call requests from model response.
content: Optional content to include in the assistant message.

_create_streaming_response_with_accumulator

def _create_streaming_response_with_accumulator(
    self,
    accumulator: StreamContentAccumulator,
    new_content: str,
    step_token_usage: Dict[str, int],
    response_id: str = '',
    tool_call_records: Optional[List[ToolCallingRecord]] = None,
    reasoning_delta: Optional[str] = None
):

Create a streaming response using content accumulator.

get_usage_dict

def get_usage_dict(self, output_messages: List[BaseMessage], prompt_tokens: int):

Get usage dictionary when using the stream mode. Parameters:

output_messages (list): List of output messages.
prompt_tokens (int): Number of input prompt tokens.

Returns: dict: Usage dictionary.

add_model_scheduling_strategy

def add_model_scheduling_strategy(self, name: str, strategy_fn: Callable):

Add a scheduling strategy method provided by user to ModelManger. Parameters:

name (str): The name of the strategy.
strategy_fn (Callable): The scheduling strategy function.

clone

def clone(self, with_memory: bool = False):

Creates a new instance of :obj:ChatAgent 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: ChatAgent: A new instance of :obj:ChatAgent with the same configuration.

_clone_tools

def _clone_tools(self):

Returns: Tuple containing:

List of cloned tools/functions
List of RegisteredAgentToolkit instances need registration

repr

def __repr__(self):

Returns: str: The string representation of the :obj:ChatAgent.

to_mcp

def to_mcp(
    self,
    name: str = 'CAMEL-ChatAgent',
    description: str = 'A helpful assistant using the CAMEL AI framework.',
    dependencies: Optional[List[str]] = None,
    host: str = 'localhost',
    port: int = 8000
):

Expose this ChatAgent as an MCP server. Parameters:

name (str): Name of the MCP server. (default: :obj:CAMEL-ChatAgent)
description (Optional[List[str]]): Description of the agent. If None, a generic description is used. (default: :obj:A helpful assistant using the CAMEL AI framework.)
dependencies (Optional[List[str]]): Additional dependencies for the MCP server. (default: :obj:None)
host (str): Host to bind to for HTTP transport. (default: :obj:localhost)
port (int): Port to bind to for HTTP transport. (default: :obj:8000)

Returns: FastMCP: An MCP server instance that can be run.

Camel.agents.base Camel.agents.critic agent

​_cleanup_temp_files

​StreamContentAccumulator

​init

​set_base_content

​add_streaming_content

​add_reasoning_content

​add_tool_status

​get_full_content

​get_full_reasoning_content

​get_content_with_new_status

​reset_streaming_content

​StreamingChatAgentResponse

​init

​_ensure_latest_response

​msgs

​terminated

​info

​msg

​iter

​getattr

​AsyncStreamingChatAgentResponse

​init

​await

​aiter

​ChatAgent

​init

​reset

​_update_token_cache

​_resolve_models

​_resolve_model_list

​system_message

​tool_dict

​token_limit

​output_language

​output_language

​memory

​memory

​set_context_utility

​_get_full_tool_schemas

​_serialize_tool_args

​_build_tool_signature

​_describe_tool_call

​_update_last_tool_call_state

​_append_user_messages_section

​_reset_summary_state

​_get_context_with_summarization

​_calculate_next_summary_threshold

​_update_memory_with_summary

​_get_external_tool_names

​add_tool

​add_tools

​_serialize_tool_result

​_truncate_tool_result

​_clean_snapshot_line

​_clean_snapshot_content

​_clean_text_snapshot

​_register_tool_output_for_cache

​_process_tool_output_cache

​_clean_snapshot_in_memory

​add_external_tool

​remove_tool

​remove_tools

​remove_external_tool

​update_memory

​load_memory

​load_memory_from_path

​save_memory

​summarize

​_build_conversation_text_from_messages

​clear_memory

​_generate_system_message_for_output_language

​init_messages

​update_system_message

​append_to_system_message

​reset_to_original_system_message

​record_message

​_try_format_message

​_check_tools_strict_compatibility

​_convert_response_format_to_prompt

​_handle_response_format_with_non_strict_tools

_cleanup_temp_files

StreamContentAccumulator

init

set_base_content

add_streaming_content

add_reasoning_content

add_tool_status

get_full_content

get_full_reasoning_content

get_content_with_new_status

reset_streaming_content

StreamingChatAgentResponse

init

_ensure_latest_response

msgs

terminated

info

msg

iter

getattr

AsyncStreamingChatAgentResponse

init

await

aiter

ChatAgent

init

reset

_update_token_cache

_resolve_models

_resolve_model_list

system_message

tool_dict

token_limit

output_language

output_language

memory

memory

set_context_utility

_get_full_tool_schemas

_serialize_tool_args

_build_tool_signature

_describe_tool_call

_update_last_tool_call_state

_append_user_messages_section

_reset_summary_state

_get_context_with_summarization

_calculate_next_summary_threshold

_update_memory_with_summary

_get_external_tool_names

add_tool

add_tools

_serialize_tool_result

_truncate_tool_result

_clean_snapshot_line

_clean_snapshot_content

_clean_text_snapshot

_register_tool_output_for_cache

_process_tool_output_cache

_clean_snapshot_in_memory

add_external_tool

remove_tool

remove_tools

remove_external_tool

update_memory

load_memory

load_memory_from_path

save_memory

summarize

_build_conversation_text_from_messages

clear_memory

_generate_system_message_for_output_language

init_messages

update_system_message

append_to_system_message

reset_to_original_system_message

record_message

_try_format_message

_check_tools_strict_compatibility

_convert_response_format_to_prompt

_handle_response_format_with_non_strict_tools