diff --git a/src/cli/chat/autonomous-claude-interface.ts b/src/cli/chat/autonomous-claude-interface.ts
index 74a3b9a9..3a0f5513 100644
--- a/src/cli/chat/autonomous-claude-interface.ts
+++ b/src/cli/chat/autonomous-claude-interface.ts
@@ -1609,12 +1609,19 @@ You are NOT a cautious assistant - you are a proactive, autonomous developer who
         this.keypressHandler = undefined
       }
 
-      // Remove all event handlers from readline
+      // Remove event listeners
       if (this.rl) {
         this.eventHandlers.forEach((handler, event) => {
           this.rl.removeListener(event, handler)
         })
         this.eventHandlers.clear()
+        this.rl.removeAllListeners()
+      }
+
+      // Remove global process listeners
+      const sigintHandler = this.eventHandlers.get('SIGINT')
+      if (sigintHandler) {
+        process.removeListener('SIGINT', sigintHandler)
       }
 
       // Reset raw mode with proper state restoration
diff --git a/src/cli/nik-cli.ts b/src/cli/nik-cli.ts
index d97b1e04..e3c26b8e 100644
--- a/src/cli/nik-cli.ts
+++ b/src/cli/nik-cli.ts
@@ -16936,6 +16936,11 @@ This file is automatically maintained by NikCLI to provide consistent context ac
       this.printShutdownLog(`Token status bar cleanup warning: ${error.message}`, 'warning')
     }
 
+    // Remove global process listeners to prevent memory leaks
+    const shutdownHandler = this.gracefulShutdown?.bind(this) || (() => {})
+    process.removeListener('SIGINT', shutdownHandler)
+    process.removeListener('SIGTERM', shutdownHandler)
+    
     // Remove keypress listener to prevent loop
     if (this.keypressListener) {
       process.stdin.removeListener('keypress', this.keypressListener)
@@ -16943,9 +16948,34 @@ This file is automatically maintained by NikCLI to provide consistent context ac
     }
 
     if (this.rl) {
+      // Remove all listeners from readline interface before closing
+      this.rl.removeAllListeners()
       this.rl.close()
     }
 
+    // Remove auth provider listeners
+    try {
+      authProvider.removeAllListeners('signed_in')
+      authProvider.removeAllListeners('signed_out')
+      authProvider.removeAllListeners('auto_login_success')
+    } catch (_e) {
+      // Ignore auth cleanup errors
+    }
+
+    // Remove agent service listeners
+    try {
+      agentService.removeAllListeners('task_start')
+      agentService.removeAllListeners('task_progress')
+      agentService.removeAllListeners('tool_use')
+      agentService.removeAllListeners('task_complete')
+      agentService.removeAllListeners('file_read')
+      agentService.removeAllListeners('file_written')
+      agentService.removeAllListeners('file_list')
+      agentService.removeAllListeners('grep_results')
+    } catch (_e) {
+      // Ignore agent service cleanup errors
+    }
+
     // Cleanup systems
     this.agentManager.cleanup()
 
diff --git a/src/cli/unified-chat.ts b/src/cli/unified-chat.ts
index 53710ba6..a6ee04fe 100644
--- a/src/cli/unified-chat.ts
+++ b/src/cli/unified-chat.ts
@@ -866,6 +866,13 @@ export class UnifiedChatInterface extends EventEmitter {
           this.rl.removeListener(event, handler)
         })
         this.eventHandlers.clear()
+        this.rl.removeAllListeners()
+      }
+
+      // Remove global process listeners
+      const sigintHandler = this.eventHandlers.get('SIGINT')
+      if (sigintHandler) {
+        process.removeListener('SIGINT', sigintHandler)
       }
 
       // Clear session data
diff --git a/src/cli/unified-cli.ts b/src/cli/unified-cli.ts
index e4f07c83..276ee6fd 100644
--- a/src/cli/unified-cli.ts
+++ b/src/cli/unified-cli.ts
@@ -34,6 +34,11 @@ const gracefulShutdown = (signal: string) => {
   } catch (error) {
     console.error('Error during shutdown:', error)
   } finally {
+    // Remove listeners before exit to prevent memory leaks in case of multiple starts
+    process.removeAllListeners('SIGINT')
+    process.removeAllListeners('SIGTERM')
+    process.removeAllListeners('uncaughtException')
+    process.removeAllListeners('unhandledRejection')
     process.exit(0)
   }
 }