diff --git a/run/core/post-startup-monitor.ts b/run/core/post-startup-monitor.ts
index 0144e2c..0bfee25 100644
--- a/run/core/post-startup-monitor.ts
+++ b/run/core/post-startup-monitor.ts
@@ -10,7 +10,7 @@
  */
 
 import { colors } from '../utils/colors';
-import readline from 'node:readline';
+import * as readline from 'node:readline';
 import { createConnection } from 'node:net';
 import { detectSoftFailure } from './response-validator';
 import { readPidFile } from '@lilith/service-orchestrator';
@@ -522,7 +522,7 @@ export class PostStartupMonitor {
 
   private resetMetrics(): void {
     // Reset counters but keep the map entries
-    for (const metrics of this.metrics.values()) {
+    for (const metrics of Array.from(this.metrics.values())) {
       metrics.requests = 0;
       metrics.errors = 0;
       metrics.warnings = 0;
@@ -615,7 +615,7 @@ export class PostStartupMonitor {
     lines.push('');
     lines.push(this.boxTop('Health', boxWidth));
 
-    for (const result of this.healthStatus.values()) {
+    for (const result of Array.from(this.healthStatus.values())) {
       const statusIcon = result.status === 'healthy'
         ? colors.healthy('✓')
         : result.status === 'warning'