Practices for embedding AI agents into enterprise systems [Layered Memory -- 4-Tier Memory & Context Broker] 💡 An AI agent that starts from scratch every session is like a new hire who asks the same questions every day. Separate memory into four layers and dynamically assemble "only what's needed right now" -- that's what makes an agent production-ready. 🔥 Problems Solved - Context loss across sessions: context vanishes between sessions and agents, forcing repeated work - Finite context window: stuffing full history into the window degrades both cost and accuracy - Memory bloat: unlimited accumulation increases cost, privacy risk, and context pollution - Lost in the middle: injecting too much context actually reduces answer accuracy 🏗️ Proposed Pattern Separate memory into four tiers: Working (current session, ephemeral), Episodic (past summaries, per-user), Semantic (RAG-indexed knowledge), and Organizational (people, teams, relationships as a knowledge graph). Assign each tier its own storage, TTL, and ACL. A Context Broker retrieves from relevant tiers based on user intent, then prioritizes, summarizes, and compresses within a token budget -- assembling context from only the most relevant information. ✅ Selection Criteria - When to use: agents providing continuous support across sessions and agent boundaries - When NOT: one-shot stateless tasks; use cases where a small, fixed context is sufficient ⚠️ Pitfalls - Episodic memory bloat: store summaries (not raw logs) and control with importance scores, TTL, and time-decay - Context broker quality: poor reranking lets irrelevant information slip through, degrading accuracy - Cross-layer ACL consistency: when layers have different ACLs, aggregation must reduce to the strictest permission 🛠️ Implementation Approach 1. Deploy a vector DB (Pinecone / Weaviate / pgvector) for the semantic memory tier and Neo4j for the organizational knowledge graph tier, configuring storage, TTL, and ACLs per tier 2. Build a summarization pipeline for episodic memory -- store summaries instead of raw logs and implement automatic forgetting via importance scores and time-decay 3. Implement the Context Broker with reranking (Cohere Rerank / cross-encoder) to dynamically assemble the most relevant information within a token budget (target ~8,000 tokens) based on user intent 4. Leverage memory management frameworks (Mem0 / Zep) for cross-session and cross-agent context persistence 5. Tag each memory tier with ACL metadata and integrate with the Context Firewall (P10) to reduce permissions to the strictest level at aggregation time #AIAgents# #EnterpriseArchitecture#