Durable State Patterns Build agents that remember state across failures, restarts, and sessions. Why Durable State? Without durability: - Long-running agents lose progress on crash - Users can't resume conversations after timeout - No audit trail of agent decisions - Expensive recomputation on every restart With durability: - Resume from any checkpoint - Survive infrastructure failures - Debug by replaying history - Share state across instances LangGraph Checkpointing Basic Setup Thread-Based State State Schema Design Versioned State Separate Concerns Memory Tiers Implementation Checkpoint Ma…