Letting an agent learn memory and skills from each other beat memory-only and skill-only serving on ALFWorld
AspireAI community · arXiv preprint
Memory systems give an agent its history; skill systems give it reusable procedures. Each has a gap - retrieved records may not say how to solve the task, and a procedure may be missing the task-specific facts - and because both shape behavior, they also shape the experience the agent learns from next. MemCryst closes that loop in both directions with a frozen language model: recurring episodes support skill creation and revision, and the interactions those skills guide supply new memory for later learning. Task outcomes adjust how often a record is retrieved in future, without rewriting the record itself.
Across ten settings spanning embodied control, long-document reading, conversation, mathematics and code, MemCryst led seven reported comparisons. On ALFWorld, jointly serving memory and skills reached 63.17% success, against 59.83% for memory-only and 50.50% for skill-only. Code is released.
Caveat: the ALFWorld gap is a few points, and the paper's own framing is that it leads most, not all, of the reported comparisons.
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