diff --git a/run/core/post-startup-monitor.ts b/run/core/post-startup-monitor.ts
index f60d96b..2c2959c 100644
--- a/run/core/post-startup-monitor.ts
+++ b/run/core/post-startup-monitor.ts
@@ -139,11 +139,43 @@ const SUPPRESS_PATTERNS = [
   /DeprecationWarning/,
   // Suppress verbose axios/network object dumps
   /\[Symbol\(/,
+  /Symbol\(\w+\)/,
   /_idleTimeout:/,
   /_idlePrev:/,
+  /_idleNext:/,
+  /_idleStart:/,
+  /_onTimeout:/,
+  /_timerArgs:/,
+  /_repeat:/,
+  /_destroyed:/,
   /kOutHeaders/,
+  /kBuffer/,
+  /kCapture/,
+  /kHighWaterMark/,
   /\[Object: null prototype\]/,
   /axios\/\d+\.\d+/,
+  // Suppress internal Node.js/axios object properties
+  /_allowHalfOpen:/,
+  /_maxListeners:/,
+  /_eventsCount:/,
+  /_sockname:/,
+  /_pendingData:/,
+  /_pendingEncoding:/,
+  /_httpMessage:/,
+  /_currentUrl:/,
+  /autoSelectFamilyAttemptedAddresses:/,
+  /errored.*null/,
+  /writableFinished:/,
+  /writableEnded:/,
+  /readable.*:/,
+  // Suppress common object dump fragments
+  /^\s*server:\s*null,?\s*$/,
+  /^\s*parser:\s*null,?\s*$/,
+  /^\s*timeout:\s*\d+,?\s*$/,
+  /^\s*\},?\s*$/,
+  /^\s*\],?\s*$/,
+  /^\s*\[\s*$/,
+  /^\s*\{\s*$/,
 ];
 
 // =============================================================================
@@ -674,13 +706,31 @@ export class PostStartupMonitor {
       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) {
+
+    // Suppress lines that look like object dump fragments
+    // Property assignments: "propName: value," or "propName: {"
+    if (/^[\w_]+:\s*[\[\{\w'"]/.test(trimmed) && trimmed.length < 80) {
       return true;
     }
-    if (/^\s*[\}\]],?\s*$/.test(trimmed)) {
+    // Closing brackets/braces
+    if (/^[\}\]],?\s*$/.test(trimmed)) {
+      return true;
+    }
+    // Array items that are just strings
+    if (/^'[^']*',?\s*$/.test(trimmed)) {
+      return true;
+    }
+    // Lines that are mostly whitespace with brackets
+    if (/^\s*[\[\{\}\]]\s*$/.test(trimmed)) {
+      return true;
+    }
+    // Stack trace internals (node:net, node:internal)
+    if (/at\s+\w+\s+\(node:/.test(trimmed)) {
+      return true;
+    }
+    // errno/syscall/address lines from connection errors (keep the main ECONNREFUSED line)
+    if (/^\s*(errno|syscall|address|port):\s*/.test(trimmed)) {
       return true;
     }
 
diff --git a/run/core/services.ts b/run/core/services.ts
index adffc67..8382ff4 100644
--- a/run/core/services.ts
+++ b/run/core/services.ts
@@ -442,10 +442,13 @@ export class ServiceManager {
       this.logger.setSilent(true);
     }
 
-    // Reset startup state
-    this.startupComplete = false;
-    // Preserve postStartupMonitor if already set (restart case)
-    // Caller will re-assign after start() completes if needed
+    // Reset startup state only for fresh starts, not restarts
+    // If postStartupMonitor is already set, this is a restart - preserve state
+    // so output continues routing to the monitor (which suppresses during restart)
+    const isRestart = this.postStartupMonitor !== undefined;
+    if (!isRestart) {
+      this.startupComplete = false;
+    }
 
     this.startTime = Date.now();