Session Amnesia: The Hidden Cost of Multi-Session AI Work

If you use Claude's desktop app — Cowork — for anything beyond single-shot tasks, you've hit this wall. Every time you close a session and open a new one, the AI starts fresh. No memory of what you discussed. No knowledge of decisions you made. No context from yesterday's work. You re-explain everything from scratch. The math nobody talks about Even 15 minutes of context re-entry per session adds up. Three sessions a day? That's 5+ hours a week just re-explaining things the AI already knew yesterday. And it's not just the reset between sessions. Within a single long session, Cowork automatically summarizes earlier parts of the conversation as it approaches the context limit. Decisions you made in the first hour may be compressed to a single sentence by hour three. The workarounds are expensive too Most people adapt with one of three patterns: Copy-paste context. Paste your notes at the start of each session. Works, but takes 20-40 minutes per session. On a team, that's hours per week.