windags-resilience

State management, checkpoint architecture, and recovery strategy selection for WinDAGs V3 execution infrastructure. Teaches the validated state machine (transition matrix with fail-fast on illegal transitions), checkpoint-resume protocol (pluggable storage, auto-save, selective re-execution), recovery strategy selection (6 strategies classified by error type and escalated by cost), and why idempotent re-execution beats saga compensation for LLM agent orchestration. Activate on "resilience", "checkpoint", "recovery", "state machine", "resume execution", "idempotent", "storage adapter", "auto-save", "wave checkpoint", "phase boundary", "crash recovery", "durable execution". NOT for failure classification and DAG mutation (use windags-mutator), pre-execution risk scanning (use windags-premortem), quality evaluation (use windags-evaluator), or DAG topology design and execution engine selection (use windags-architect).