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Draft: Add document memory system
This PR implements a memory system that allows agents to retain and reference information from uploaded documents. It's currently limited to the CLI chat feature for testing.
Core Components
MemoryManager
: Manages document ingestion, chunking, and retrievalVectorStore
: Handles vector storage and similarity search using ChromaDBKey Features
Implementation Notes
Similarity scores may appear low when using small test datasets due to sparse embedding space (I think), but the relative ranking works correctly -- more relevant memories consistently receive higher scores than less relevant ones. As more documents are added, similarity scores would (hopefully) increase due to greater semantic overlap, while maintaining the same relevance ranking. At least that's the way it's worked so far in testing.
Limitations/Future Work