diff --git a/src/background/index.ts b/src/background/index.ts
index 4cdff50..bb53e8c 100644
--- a/src/background/index.ts
+++ b/src/background/index.ts
@@ -152,14 +152,22 @@ async function handleBrokerMessage(msg: BrokerMessage): Promise<void> {
   switch (msg.type) {
     case 'welcome':
     case 'text_delta':
-    case 'round':
-    case 'done':
-    case 'error':
     case 'approval_request':
     case 'tool_result_event':
     case 'mcp_status':
       sendToPanel(msg);
       break;
+    case 'round':
+      // Agent läuft — Glow einschalten
+      notifyGlow(true);
+      sendToPanel(msg);
+      break;
+    case 'done':
+    case 'error':
+      // Agent fertig — Glow ausschalten
+      notifyGlow(false);
+      sendToPanel(msg);
+      break;
     case 'tool_call':
       await executeForBroker(msg.callId, msg.name, msg.input);
       break;
@@ -1662,7 +1670,15 @@ chrome.runtime.onConnect.addListener((port) => {
             sendToPanel({ type: 'log', level: 'warn',
               text: `${msg.images.length} Bild(er) ignoriert: Bildanhänge gehen nur im Antrieb "direct".` });
           }
-          sendToBroker({ type: 'user_message', text: msg.text, maxRounds: msg.maxRounds ?? cfg.maxRounds } satisfies ExtUserMessage);
+          // Aktuelle Tab-URL mitschicken — der Broker baut daraus den Kontext (z.B. Mercedes-Wissen).
+          let tabUrl: string | undefined;
+          try {
+            const id = await currentTabId();
+            if (typeof id === 'number') {
+              tabUrl = (await chrome.tabs.get(id).catch(() => null))?.url;
+            }
+          } catch { /* ok */ }
+          sendToBroker({ type: 'user_message', text: msg.text, maxRounds: msg.maxRounds ?? cfg.maxRounds, url: tabUrl } satisfies ExtUserMessage);
         }
         break;
       }
diff --git a/src/shared/protocol.ts b/src/shared/protocol.ts
index 04b8e56..436d405 100644
--- a/src/shared/protocol.ts
+++ b/src/shared/protocol.ts
@@ -24,6 +24,8 @@ export interface ExtUserMessage {
   text: string;
   chatId?: string;
   maxRounds?: number;
+  /** URL des Ziel-Tabs — damit der Broker kontextspezifische Prompts einbauen kann. */
+  url?: string;
 }
 
 /** Tool execution result (extension ran a browser tool) */