Implementing memory and state management for LLM agents
To improve our agent’s ability to maintain context and learn from past experiences, let’s implement a more sophisticated memory system. This will enable the agent to recall relevant past observations when deciding on actions.
First, we define the MemoryEntry
class, which represents an entry in the agent’s memory. Each entry contains the text of the observation and its corresponding embedding vector, which helps with similarity searches:
from collections import deque import numpy as np from sklearn.metrics.pairwise import cosine_similarity class MemoryEntry: def __init__(self, text: str, embedding: np.ndarray): self.text = text self.embedding = embedding
Then, we define the EpisodicMemory
class; this handles the agent’s memory, storing a fixed number of observations (capacity...