Source code for camel.toolkits.memory_toolkit
# ========= Copyright 2023-2024 @ CAMEL-AI.org. All Rights Reserved. =========
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
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# ========= Copyright 2023-2024 @ CAMEL-AI.org. All Rights Reserved. =========
import json
from typing import TYPE_CHECKING, Optional
from camel.memories import (
ChatHistoryMemory,
MemoryRecord,
ScoreBasedContextCreator,
)
from camel.toolkits.base import BaseToolkit
from camel.toolkits.function_tool import FunctionTool
if TYPE_CHECKING:
from camel.agents import ChatAgent
[docs]
class MemoryToolkit(BaseToolkit):
r"""A toolkit that provides methods for saving, loading, and clearing a
ChatAgent's memory.
These methods are exposed as FunctionTool objects for
function calling. Internally, it calls:
- agent.save_memory(path)
- agent.load_memory(new_memory_obj)
- agent.load_memory_from_path(path)
- agent.clear_memory()
Args:
agent (ChatAgent): The chat agent whose memory will be managed.
timeout (Optional[float], optional): Maximum execution time allowed for
toolkit operations in seconds. If None, no timeout is applied.
(default: :obj:`None`)
"""
def __init__(self, agent: 'ChatAgent', timeout: Optional[float] = None):
super().__init__(timeout=timeout)
self.agent = agent
[docs]
def save(self, path: str) -> str:
r"""Saves the agent's current memory to a JSON file.
Args:
path (str): The file path to save the memory to.
Returns:
str: Confirmation message.
"""
self.agent.save_memory(path)
return f"Memory saved to {path}"
[docs]
def load(self, memory_json: str) -> str:
r"""Loads memory into the agent from a JSON string.
Args:
memory_json (str): A JSON string containing memory records.
Returns:
str: Confirmation or error message.
"""
try:
data = json.loads(memory_json.strip())
if not isinstance(data, list):
return "[ERROR] Memory data should be a list of records."
# Build a fresh ChatHistoryMemory
context_creator = ScoreBasedContextCreator(
token_counter=self.agent.model_backend.token_counter,
token_limit=self.agent.model_backend.token_limit,
)
new_memory = ChatHistoryMemory(context_creator)
# Convert each record dict -> MemoryRecord
for record_dict in data:
record = MemoryRecord.from_dict(record_dict)
new_memory.write_record(record)
# Load into the agent
self.agent.load_memory(new_memory)
return "Loaded memory from provided JSON string."
except json.JSONDecodeError:
return "[ERROR] Invalid JSON string provided."
except Exception as e:
return f"[ERROR] Failed to load memory: {e!s}"
[docs]
def load_from_path(self, path: str) -> str:
r"""Loads the agent's memory from a JSON file.
Args:
path (str): The file path to load the memory from.
Returns:
str: Confirmation message.
"""
self.agent.load_memory_from_path(path)
return f"Memory loaded from {path}"
[docs]
def clear_memory(self) -> str:
r"""Clears the agent's memory.
Returns:
str: Confirmation message.
"""
self.agent.clear_memory()
return "Memory has been cleared."
[docs]
def get_tools(self) -> list[FunctionTool]:
r"""Expose the memory management methods as function tools
for the ChatAgent.
Returns:
list[FunctionTool]: List of FunctionTool objects.
"""
return [
FunctionTool(self.save),
FunctionTool(self.load),
FunctionTool(self.load_from_path),
FunctionTool(self.clear_memory),
]