What's this about?
PrisMem evolves memory programs separately for retrieval, relevance and other capabilities, then merges specialists whose behaviour provides complementary wins.
What exactly is an executable memory program?
It is code that decides what an agent stores, how it indexes past interactions and which memories it retrieves for a new task.
Why does this matter?
One overall score can hide a useful improvement that harms another skill. Capability-level search preserves those directions, with reported gains on histories up to one million tokens.