diff --git a/run/core/post-startup-monitor.ts b/run/core/post-startup-monitor.ts
index d48f212..f60d96b 100644
--- a/run/core/post-startup-monitor.ts
+++ b/run/core/post-startup-monitor.ts
@@ -137,6 +137,13 @@ const SUPPRESS_PATTERNS = [
   /punycode.*deprecated/i,
   /\(node:\d+\)\s+Warning:/,
   /DeprecationWarning/,
+  // Suppress verbose axios/network object dumps
+  /\[Symbol\(/,
+  /_idleTimeout:/,
+  /_idlePrev:/,
+  /kOutHeaders/,
+  /\[Object: null prototype\]/,
+  /axios\/\d+\.\d+/,
 ];
 
 // =============================================================================
@@ -200,8 +207,8 @@ export class PostStartupMonitor {
    * Process service output - called by ServiceManager.onServiceOutput
    */
   processOutput(serviceId: string, output: string, isError: boolean): void {
-    // Suppress all output during restart to avoid log flood
-    if (this.isRestarting) {
+    // Suppress all output during restart or shutdown to avoid log flood
+    if (this.isRestarting || this.isShuttingDown) {
       return;
     }
 
@@ -662,7 +669,22 @@ export class PostStartupMonitor {
   // ---------------------------------------------------------------------------
 
   private shouldSuppress(output: string): boolean {
-    return SUPPRESS_PATTERNS.some(pattern => pattern.test(output));
+    // Suppress known noise patterns
+    if (SUPPRESS_PATTERNS.some(pattern => pattern.test(output))) {
+      return true;
+    }
+
+    // Suppress lines that look like object dump fragments
+    // (indented lines with property names ending in colon or brackets)
+    const trimmed = output.trim();
+    if (/^\s*[\w_]+:\s*[\[\{]/.test(trimmed) && trimmed.length < 60) {
+      return true;
+    }
+    if (/^\s*[\}\]],?\s*$/.test(trimmed)) {
+      return true;
+    }
+
+    return false;
   }
 
   private matchesPatterns(output: string, patterns: RegExp[]): boolean {