亚马逊论文：智能体记忆评测应直接检查存储事实
New Amazon paper shows that teams shipping agent memory should check what actually got stored, since QA scores alone did not reveal which pipeline stage was fai
亚马逊新论文指出，智能体记忆基准只评答案会混淆记忆、检索与作答环节，应直接检查每次更新后实际存了什么。团队构建 FEB-30（30 条脚本化事实历史、147 份文档），在类 Mem0 与 Hindsight 的记忆系统上对比存储事实与 QA 分数：两者平均相差 16.8 分，21% 的事实历史通过/失败判定不一致，系统选对 update、reinforce 等记忆动作的比例仅 20.1%。
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New Amazon paper shows that teams shipping agent memory should check what actually got stored, since QA scores alone did not reveal which pipeline stage was failing.
Agent memory benchmarks grade the agent's answers, which mixes memory with retrieval and answer writing. A strong LLM can hide a broken memory store, and a retrieval miss can make a correct one look bad.
They built FEB-30, 30 scripted fact histories turned into 147 documents, so the correct memory state is known after every document. On a memory system built like Mem0 and Hindsight, they compared the stored facts with that truth and with QA scores.
The 2 scores differed by 16.8 points on average, and pass/fail verdicts disagreed on 21% of fact histories. The system picked the right memory action, like update or reinforce, only 20.1% of the time, which QA never showed.
If you build agent memory, test the stored facts directly after each update, alongside end-to-end QA.