NATS Strict Full Go Parity Map

Capability	Behavior	Tests	Docs
Strict capability inventory guardrail	done	done	closed
Account-scoped remote delivery	open	open	open
Idempotent inter-server interest propagation	open	open	open
Gateway reply remap and leaf loop-marker transparency	open	open	open
MQTT packet-level parser and writer	open	open	open
MQTT session and QoS acknowledgement runtime	open	open	open
MQTT auth/TLS/keepalive integration	open	open	open
JetStream retention runtime semantics	open	open	open
JetStream consumer ack/backoff/replay/flow state machine	open	open	open
JetStream mirror/source runtime semantics	open	open	open
FileStore durable invariants and recovery contract	open	open	open
RAFT quorum/next-index/snapshot/membership semantics	open	open	open
JetStream meta/replica governance contracts	open	open	open
Runtime profiling and config option drift closure	open	open	open
Differences and parity-map synchronization	open	open	open