Before: "I don't have access to previous conversations" After: "We discussed JWT auth on Tuesday. You decided on 15-minute tokens."
When you ask about past conversations, Claude doesn't search in your main chat. Instead, it spawns a specialized sub-agent that:
"Just use grep" - Sure, enjoy your 10,000 matches for "database" "Overengineered" - Two functions: store_reflection, reflect_on_past "Another vector DB" - Yes, because semantic > string matching