diff --git a/dashboards/tracker-web/package.json b/dashboards/tracker-web/package.json
index 4bab08c4..65224094 100644
--- a/dashboards/tracker-web/package.json
+++ b/dashboards/tracker-web/package.json
@@ -6,6 +6,7 @@
     "node": "20.x"
   },
   "scripts": {
+    "pretest": "corepack pnpm --dir ../.. --filter @bytelyst/api-client --filter @bytelyst/config --filter @bytelyst/errors --filter @bytelyst/logger --filter @bytelyst/telemetry-client build",
     "dev": "next dev --port 3003",
     "build": "next build --webpack",
     "start": "next start --port 3003",
diff --git a/packages/blob/package.json b/packages/blob/package.json
index 48713cda..21bf2ef8 100644
--- a/packages/blob/package.json
+++ b/packages/blob/package.json
@@ -14,6 +14,7 @@
     "dist"
   ],
   "scripts": {
+    "pretest": "corepack pnpm --dir ../.. --filter @bytelyst/storage build",
     "build": "tsc",
     "test": "vitest run"
   },
diff --git a/packages/sync/src/engine.ts b/packages/sync/src/engine.ts
index 142a6e08..d3f6f4e9 100644
--- a/packages/sync/src/engine.ts
+++ b/packages/sync/src/engine.ts
@@ -33,6 +33,8 @@ const LAST_SYNC_KEY = 'lastSync';
 export class SyncEngineImpl implements SyncEngine {
   private config: SyncEngineConfig;
   private status: SyncStatus = 'idle';
+  private queueLength = 0;
+  private lastSyncAt?: string;
   private statusListeners: Set<SyncStatusCallback> = new Set();
   private connectivityListeners: (() => void)[] = [];
 
@@ -78,12 +80,8 @@ export class SyncEngineImpl implements SyncEngine {
     }
 
     await this.saveQueue(existingQueue);
+    this.queueLength = existingQueue.length;
     this.updateStatus('idle');
-
-    // Auto-flush if online
-    if (this.isOnline()) {
-      await this.flush();
-    }
   }
 
   async delete(entity: EntityName, id: string): Promise<void> {
@@ -115,6 +113,7 @@ export class SyncEngineImpl implements SyncEngine {
       }
 
       await this.setLastSyncTime(result.timestamp);
+      this.lastSyncAt = result.timestamp;
     } catch (error) {
       result.success = false;
       this.updateStatus('error', error instanceof Error ? error.message : 'Unknown error');
@@ -152,6 +151,7 @@ export class SyncEngineImpl implements SyncEngine {
 
   private async saveQueue(queue: SyncItem[]): Promise<void> {
     await this.config.storage.setItem(QUEUE_KEY, queue);
+    this.queueLength = queue.length;
   }
 
   private async pushQueue(): Promise<SyncResult> {
@@ -279,7 +279,7 @@ export class SyncEngineImpl implements SyncEngine {
   private setupConnectivityDetection(): void {
     if (typeof window !== 'undefined' && window.addEventListener) {
       const handleOnline = () => {
-        this.flush();
+        void this.flush();
         this.connectivityListeners.forEach(cb => cb());
       };
 
@@ -296,7 +296,10 @@ export class SyncEngineImpl implements SyncEngine {
 
   async flush(): Promise<void> {
     if (this.status === 'syncing') return;
-    await this.pushQueue();
+    const result = await this.pushQueue();
+    if (result.success && result.errors === 0) {
+      this.updateStatus('idle');
+    }
   }
 
   // ───────────────────────────────────────────────────────────────────────────
@@ -304,14 +307,14 @@ export class SyncEngineImpl implements SyncEngine {
   // ───────────────────────────────────────────────────────────────────────────
 
   getQueueLength(): number {
-    // Async getQueue but we need sync return - use cached value or 0
-    return 0; // Consumer should use getStatus() for accurate count
+    return this.queueLength;
   }
 
   getStatus(): SyncStatusInfo {
     return {
       status: this.status,
-      queueLength: 0, // Will be populated async
+      queueLength: this.queueLength,
+      lastSyncAt: this.lastSyncAt,
     };
   }
 
@@ -324,7 +327,8 @@ export class SyncEngineImpl implements SyncEngine {
     this.status = status;
     const info: SyncStatusInfo = {
       status,
-      queueLength: 0,
+      queueLength: this.queueLength,
+      lastSyncAt: this.lastSyncAt,
       lastError: error,
     };
     this.statusListeners.forEach(cb => cb(info));
diff --git a/packages/testing/package.json b/packages/testing/package.json
index 0f48c92c..7bcb8738 100644
--- a/packages/testing/package.json
+++ b/packages/testing/package.json
@@ -14,6 +14,7 @@
     "dist"
   ],
   "scripts": {
+    "pretest": "corepack pnpm --dir ../.. --filter @bytelyst/fastify-core build",
     "build": "tsc",
     "test": "vitest run"
   },