Phase 8: Multi-Agent Systems & Platform Architecture · 45 min · Claude Code · Python
Agent Memory Architecture
A decision made and forgotten gets re-litigated. A stale decision never forgotten gets followed past its expiration date. Memory needs both a write path and a forget path.
Real-world application: Designing a memory architecture with an explicit forgetting mechanism — not just accumulating everything indefinitely — shows you understand memory as a managed resource, not a database you only ever insert into.
What you will learn
- Distinguish short-term (session-only), working (rolling summary), and long-term (persistent, cross-session) memory tiers
- Apply the write-manage-read loop: deciding what to record, which tier it belongs in, and what to retrieve for a given task
- Explain why forgetting is as necessary as writing, and what happens when a system never forgets
- Build a memory store with real cross-session persistence and a working expiration mechanism
Introduction
Agent Memory Architecture
Objective
Implement short-term, working, and long-term memory tiers with real cross-session persistence for long-term memory, and a working expiration mechanism.
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