Delivered memory is not used memory: MemUse traces each delivery and finds most entries irrelevant and most relevant ones ignored
MemUse moves the unit of evaluation from the task outcome to the individual memory delivery: across 8,000 SWE-bench Verified agent episodes, three memory systems stayed within 0.4 percentage points of a no-memory baseline on resolve rate, yet per-delivery judgments show most delivered entries were irrelevant, 51.3%–79.7% of relevant entries went unused in each system, and 23.2% of episodes with beneficial memory use still failed.