diff --git a/webclient/src/composables/useWebSocket.js b/webclient/src/composables/useWebSocket.js
index 93fad56..e7550d4 100644
--- a/webclient/src/composables/useWebSocket.js
+++ b/webclient/src/composables/useWebSocket.js
@@ -26,6 +26,7 @@
   let retryCount = 0
   let retryTimer = null
   let destroyed = false
+  let _isReconnect = false  // true when this open is a retry, not the first connect
 
   function connect(id) {
     sessionId = id
@@ -61,6 +62,7 @@
       connected.value = true
       reconnecting.value = false
       reconnectFailed.value = false
+      _isReconnect = retryCount > 0
       retryCount = 0
     }
 
@@ -116,6 +118,15 @@
       case 'profile_switched':  chat.onProfileSwitched(event); break
       case 'context_compressed':chat.onContextCompressed(event); break
       case 'error':             chat.onError(event); break
+      case 'heartbeat':         break  // keep-alive ping, no action needed
+      case 'session_sync':
+        // On reconnect: reload session history so the client sees the saved response
+        // even if the agent finished while the client was disconnected.
+        if (_isReconnect && sessionId) {
+          _isReconnect = false
+          chat.reloadSession(sessionId)
+        }
+        break
     }
   }
 
diff --git a/webclient/src/stores/chat.js b/webclient/src/stores/chat.js
index 4e2e141..3d260d7 100644
--- a/webclient/src/stores/chat.js
+++ b/webclient/src/stores/chat.js
@@ -57,6 +57,22 @@
     }
   }
 
+  // Force-reload session history from the server, bypassing the same-id guard.
+  // Called after WebSocket reconnect so the client sees the saved response
+  // even if streaming finished while the client was disconnected.
+  async function reloadSession(id) {
+    if (!id) return
+    try {
+      const session = await api.getSession(id)
+      currentProfileId.value = session.profile_id ?? null
+      messages.value = buildMessageList(session.messages ?? [])
+      if (session.context_token_count) contextTokens.value = session.context_token_count
+      if (session.max_context_tokens) maxContextTokens.value = session.max_context_tokens
+    } catch {
+      // Silently ignore — stale data is better than a crash
+    }
+  }
+
   // Draft restore callback — set by InputBar
   let _draftRestoreCallback = null
   function onDraftRestore(cb) { _draftRestoreCallback = cb }
@@ -392,6 +408,7 @@
     loading,
     streamingMsg,
     loadSession,
+    reloadSession,
     saveDraft,
     onDraftRestore,
     appendUserMessage,