Memory System Design

Use this skill to choose and implement the shallowest persistent memory layer that satisfies retrieval, durability, and reasoning requirements.

When to Activate

• Building agents that must persist knowledge across sessions
• Choosing between memory frameworks (Mem0, Zep/Graphiti, Letta, LangMem, Cognee)
• Needing to maintain entity consistency across conversations
• Implementing reasoning over accumulated knowledge
• Designing memory architectures that scale in production
• Evaluating memory systems against benchmarks (LoCoMo, LongMemEval, DMR)
• Building dynamic memory with automatic entity/relationship extraction and self-improving memory (Cognee)

Do not activate this skill for adjacent work owned by other skills:

• Token budgets, retrieval scoping, or prefix caching inside one trajectory: context-optimization.
• Stale or conflicting memories as context poisoning: context-degradation.