Index: docs/SDD/Comms_Overview.puml
===================================================================
diff -u -rcaca75be9a284ac5f98c078ec47c2e826ac5e980 -r6d2ef8c97f4bb34204e95811839b3995000c47c1
--- docs/SDD/Comms_Overview.puml	(.../Comms_Overview.puml)	(revision caca75be9a284ac5f98c078ec47c2e826ac5e980)
+++ docs/SDD/Comms_Overview.puml	(.../Comms_Overview.puml)	(revision 6d2ef8c97f4bb34204e95811839b3995000c47c1)
@@ -5,9 +5,9 @@
 participant "Can::CanInterface" as CANI
 participant "CloudConnectController" as LRC
 participant "Can::MessageDispatcher" as MDISP
-participant "CloudConnectClient" as AI
-participant "Unix Domain\nSocket" as UDS
-participant "AgentSimController" as ASC
+participant "CloudConnectServer" as RS
+participant "Unix Domain\nSocket (app)" as UDS
+participant "Luis application" as APP
 
 == CAN frame → assembled message ==
 
@@ -17,19 +17,25 @@
 
 == Message handling & forwarding ==
 
-LRC -> LRC : look up policy in _msgHandling\n(drop / send_always / send_delta)
-LRC -> AI : send(topic, sequence, protobuf payload)
-AI -> UDS : write(CloudConnectFrame frame)
+LRC -> LRC : look up policy in _msgHandling\n(Drop / SendAlways / SendDelta)
+LRC -> RS : send(topic, sequence, protobuf payload)
+RS -> UDS : write(CloudConnectFrame frame)
+UDS -> APP : readyRead
 
-== AgentSim receives ==
+== Cloud delivery (planned — Phase 2/3) ==
 
-UDS -> ASC : readyRead → onReadyRead()
-ASC -> ASC : feed() → didMessageReceive()
+note over LRC
+  The Connectivity Agent socket has been removed.
+  The spool/publish pipeline that replaces it
+  (MessageSpool → Router → MqttPublisher, with
+  SpoolDrain replaying on reconnect) is not yet
+  implemented — see docs/SDD/AgentMigrationPlan.md.
+end note
 
 == Connection events ==
 
-AI -> LRC : didConnect()\n→ (future)
-AI -> LRC : didDisconnect()\n→ onAgentDisconnect()\n  resets _msgCache received flags
-AI -> LRC : didMessageReceive()\n→ (future inbound)
+RS -> LRC : didConnect()\n→ (future) serial-number handshake
+RS -> LRC : didDisconnect()\n→ (future)
+RS -> LRC : didMessageReceive()\n→ (future inbound)
 
 @enduml