Agent Memory Architecture

Overview

Conversation history ≠ memory. Production agents need tiered stores: hot in-context, warm vector recall, cold archival, plus temporal knowledge graphs for facts that change over time. This skill picks the backend and tier layout.

When to use

• Agent needs to remember user preferences across sessions
• Multi-session task continuity (Ralph, long-running research)
• Personalization that survives restarts
• Multi-tenant agents with strict isolation
• Facts change over time (price, status, relationships) → temporal KG needed

Backend selection