AI · Technology · 2026-09-09 08:09:00
The article examines four types of agent memory: working, episodic, semantic and procedural, a taxonomy from cognitive science via SOAR and CoALA. Working memory is the context window plus scratchpad, rented by token and vanishing at loop end; treating it as where memory happens bloats prompts. Episodic memory logs time-bound experiences, highest volume and lowest signal. Semantic memory is general knowledge detached from episodes, where durable value sits, but most systems log rather than distill. Procedural memory is skill, scattered across three places in agents. Memanto maps these to 13 semantic types with provenance and confidence, and a retention policy table showing lifetime depends on how fast the subject matter changes, not the cognitive category.
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