Building agent memory on ElasticsearchThree indices, hybrid recall with a reranker, supersession, decay, and DLS. The architecture and the numbers behind a persistent memory layer for agents.Sarah's smart bulbs are only showing white. Her smart-home assistant suggests resetting the hub. She did that in March, and again last week; neither reset fixed anything. The agent doesn't know that, and it doesn't know about the dog chewing through her sensor cables either. The history that mattered, what w...