The conversation stays on disk; the brain keeps what matters

Improvement

In an account with 580 recorded agent sessions, each session became dozens of documents and the whole conversation stayed indexed. That was 3,711 documents carrying text nobody queries. Each session now leaves a 36-byte anchor with the same identifier, and the text stays on disk where it came from. The corpus of that account went from 38,600 to 34,900 documents, 1.1 million orphan vectors were removed and the indexes are 53% smaller. What was extracted from the conversation (episodes, decisions, facts) does not change and still points to the anchor.