Git tracks what changed. It doesn't track why

Last month I lost a three-week conversation with Claude. API timeout, session gone. All the context — the hypotheses we'd tested, the decisions we'd made, the dead ends we'd explored — vanished. I spent two hours trying to reconstruct it from memory. I got maybe 60% back. That was the last time. The problem nobody names If you use AI agents for anything longer than a single session, you've hit this wall: Chat disappears. You start over. You switch models. The new one knows nothing. A teammate ne