How are vectors managed when summaries are deleted?

[Producerey]

Hey! I've been testing the memory tool and had a question about how vector storage works.

I noticed that when I delete a summary, the vectors in VectorCode/ChromaDB still remain. The .md file and index entry are removed, but the content is still searchable via the memory tool.

I assume VectorCode stores the raw text alongside the vectors, which is why deleted summaries can still be retrieved.

Is this the expected behavior?

I'm also wondering if there's a recommended way to clean up old memories over time, or if I should manage this directly through VectorCode CLI (e.g., vectorcode drop and re-index)?

Just want to understand the intended workflow here. Thanks!