diff --git a/ui-electrobun/src/bun/sidecar-manager.ts b/ui-electrobun/src/bun/sidecar-manager.ts
index 8e39237..ee8c6c9 100644
--- a/ui-electrobun/src/bun/sidecar-manager.ts
+++ b/ui-electrobun/src/bun/sidecar-manager.ts
@@ -510,6 +510,7 @@ export class SidecarManager {
 
     // Parse through message adapter
     const messages = parseMessage(session.state.provider, event);
+    dbg(`parseMessage returned ${messages.length} messages for event type=${event.type || event.subtype || 'unknown'}`);
 
     // Update session state from cost messages
     for (const msg of messages) {
@@ -523,13 +524,17 @@ export class SidecarManager {
 
     // Emit to callbacks
     if (messages.length > 0) {
+      dbg(`Emitting ${messages.length} messages to ${session.onMessage.length} callbacks`);
       for (const cb of session.onMessage) {
         try {
           cb(sessionId, messages);
         } catch (err) {
+          dbg(`Message callback error: ${err}`);
           console.error(`[sidecar] Message callback error for ${sessionId}:`, err);
         }
       }
+    } else {
+      dbg(`No messages parsed from event — not forwarding`);
     }
   }