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# ============================================
# Agent Exceptions
# ============================================
class AgentError(Exception):
"""Base class for all agent exceptions."""
pass
class AgentNoInstructionError(AgentError):
def __init__(self, message='Instruction must be provided'):
super().__init__(message)
class AgentEventTypeError(AgentError):
def __init__(self, message='Event must be a dictionary'):
super().__init__(message)
class AgentAlreadyRegisteredError(AgentError):
def __init__(self, name=None):
if name is not None:
message = f"Agent class already registered under '{name}'"
else:
message = 'Agent class already registered'
super().__init__(message)
class AgentNotRegisteredError(AgentError):
def __init__(self, name=None):
if name is not None:
message = f"No agent class registered under '{name}'"
else:
message = 'No agent class registered'
super().__init__(message)
class AgentStuckInLoopError(AgentError):
def __init__(self, message='Agent got stuck in a loop'):
super().__init__(message)
# ============================================
# Agent Controller Exceptions
# ============================================
class TaskInvalidStateError(Exception):
def __init__(self, state=None):
if state is not None:
message = f'Invalid state {state}'
else:
message = 'Invalid state'
super().__init__(message)
# ============================================
# LLM Exceptions
# ============================================
# This exception gets sent back to the LLM
# It might be malformed JSON
class LLMMalformedActionError(Exception):
def __init__(self, message='Malformed response'):
self.message = message
super().__init__(message)
def __str__(self):
return self.message
# This exception gets sent back to the LLM
# For some reason, the agent did not return an action
class LLMNoActionError(Exception):
def __init__(self, message='Agent must return an action'):
super().__init__(message)
# This exception gets sent back to the LLM
# The LLM output did not include an action, or the action was not the expected type
class LLMResponseError(Exception):
def __init__(self, message='Failed to retrieve action from LLM response'):
super().__init__(message)
class UserCancelledError(Exception):
def __init__(self, message='User cancelled the request'):
super().__init__(message)
class OperationCancelled(Exception):
"""Exception raised when an operation is cancelled (e.g. by a keyboard interrupt)."""
def __init__(self, message='Operation was cancelled'):
super().__init__(message)
class CloudFlareBlockageError(Exception):
"""Exception raised when a request is blocked by CloudFlare."""
pass
# ============================================
# LLM function calling Exceptions
# ============================================
class FunctionCallConversionError(Exception):
"""Exception raised when FunctionCallingConverter failed to convert a non-function call message to a function call message.
This typically happens when there's a malformed message (e.g., missing <function=...> tags). But not due to LLM output.
"""
def __init__(self, message):
super().__init__(message)
class FunctionCallValidationError(Exception):
"""Exception raised when FunctionCallingConverter failed to validate a function call message.
This typically happens when the LLM outputs unrecognized function call / parameter names / values.
"""
def __init__(self, message):
super().__init__(message)
class FunctionCallNotExistsError(Exception):
"""Exception raised when an LLM call a tool that is not registered."""
def __init__(self, message):
super().__init__(message)
# ============================================
# Agent Runtime Exceptions
# ============================================
class AgentRuntimeError(Exception):
"""Base class for all agent runtime exceptions."""
pass
class AgentRuntimeBuildError(AgentRuntimeError):
"""Exception raised when an agent runtime build operation fails."""
pass
class AgentRuntimeTimeoutError(AgentRuntimeError):
"""Exception raised when an agent runtime operation times out."""
pass
class AgentRuntimeUnavailableError(AgentRuntimeError):
"""Exception raised when an agent runtime is unavailable."""
pass
class AgentRuntimeNotReadyError(AgentRuntimeUnavailableError):
"""Exception raised when an agent runtime is not ready."""
pass
class AgentRuntimeDisconnectedError(AgentRuntimeUnavailableError):
"""Exception raised when an agent runtime is disconnected."""
pass
class AgentRuntimeNotFoundError(AgentRuntimeUnavailableError):
"""Exception raised when an agent runtime is not found."""
pass
# ============================================
# Browser Exceptions
# ============================================
class BrowserInitException(Exception):
def __init__(self, message='Failed to initialize browser environment'):
super().__init__(message)
class BrowserUnavailableException(Exception):
def __init__(
self,
message='Browser environment is not available, please check if has been initialized',
):
super().__init__(message)
# ============================================
# Microagent Exceptions
# ============================================
class MicroAgentError(Exception):
"""Base exception for all microagent errors."""
pass
class MicroAgentValidationError(MicroAgentError):
"""Raised when there's a validation error in microagent metadata."""
def __init__(self, message='Micro agent validation failed'):
super().__init__(message)
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