diff --git a/pkg/manager/lifecycle.go b/pkg/manager/lifecycle.go
index 73cb073..cc147df 100644
--- a/pkg/manager/lifecycle.go
+++ b/pkg/manager/lifecycle.go
@@ -23,8 +23,8 @@ type lifecycleManager struct {
 	shutdownOnce sync.Once
 }
 
-// NewLifecycleManager creates a new lifecycle manager.
-func NewLifecycleManager(
+// newLifecycleManager creates a new lifecycle manager.
+func newLifecycleManager(
 	registry *instanceRegistry,
 	manager InstanceManager,
 	checkInterval time.Duration,
diff --git a/pkg/manager/manager.go b/pkg/manager/manager.go
index 551b1dd..e2c39de 100644
--- a/pkg/manager/manager.go
+++ b/pkg/manager/manager.go
@@ -52,23 +52,23 @@ func New(backendsConfig config.BackendConfig, instancesConfig config.InstancesCo
 	}
 
 	// Initialize components
-	registry := NewInstanceRegistry()
+	registry := newInstanceRegistry()
 
 	// Initialize port allocator
 	portRange := instancesConfig.PortRange
-	ports, err := NewPortAllocator(portRange[0], portRange[1])
+	ports, err := newPortAllocator(portRange[0], portRange[1])
 	if err != nil {
 		log.Fatalf("Failed to create port allocator: %v", err)
 	}
 
 	// Initialize persistence
-	persistence, err := NewInstancePersister(instancesConfig.InstancesDir)
+	persistence, err := newInstancePersister(instancesConfig.InstancesDir)
 	if err != nil {
 		log.Fatalf("Failed to create instance persister: %v", err)
 	}
 
 	// Initialize remote manager
-	remote := NewRemoteManager(nodesConfig, 30*time.Second)
+	remote := newRemoteManager(nodesConfig, 30*time.Second)
 
 	// Create manager instance
 	im := &instanceManager{
@@ -83,7 +83,7 @@ func New(backendsConfig config.BackendConfig, instancesConfig config.InstancesCo
 
 	// Initialize lifecycle manager (needs reference to manager for Stop/Evict operations)
 	checkInterval := time.Duration(instancesConfig.TimeoutCheckInterval) * time.Minute
-	im.lifecycle = NewLifecycleManager(registry, im, checkInterval, true)
+	im.lifecycle = newLifecycleManager(registry, im, checkInterval, true)
 
 	// Load existing instances from disk
 	if err := im.loadInstances(); err != nil {
diff --git a/pkg/manager/persistence.go b/pkg/manager/persistence.go
index 21f4588..e9f2238 100644
--- a/pkg/manager/persistence.go
+++ b/pkg/manager/persistence.go
@@ -18,9 +18,9 @@ type instancePersister struct {
 	enabled      bool
 }
 
-// NewInstancePersister creates a new instance persister.
+// newInstancePersister creates a new instance persister.
 // If instancesDir is empty, persistence is disabled.
-func NewInstancePersister(instancesDir string) (*instancePersister, error) {
+func newInstancePersister(instancesDir string) (*instancePersister, error) {
 	if instancesDir == "" {
 		return &instancePersister{
 			enabled: false,
diff --git a/pkg/manager/ports.go b/pkg/manager/ports.go
index c5aac3e..18a3787 100644
--- a/pkg/manager/ports.go
+++ b/pkg/manager/ports.go
@@ -23,9 +23,9 @@ type portAllocator struct {
 	rangeSize int
 }
 
-// NewPortAllocator creates a new port allocator for the given port range.
+// newPortAllocator creates a new port allocator for the given port range.
 // Returns an error if the port range is invalid.
-func NewPortAllocator(minPort, maxPort int) (*portAllocator, error) {
+func newPortAllocator(minPort, maxPort int) (*portAllocator, error) {
 	if minPort <= 0 || maxPort <= 0 {
 		return nil, fmt.Errorf("invalid port range: min=%d, max=%d (must be > 0)", minPort, maxPort)
 	}
diff --git a/pkg/manager/registry.go b/pkg/manager/registry.go
index c8758f9..f0fd797 100644
--- a/pkg/manager/registry.go
+++ b/pkg/manager/registry.go
@@ -14,8 +14,8 @@ type instanceRegistry struct {
 	running   sync.Map // map[string]struct{} - lock-free for status checks
 }
 
-// NewInstanceRegistry creates a new instance registry.
-func NewInstanceRegistry() *instanceRegistry {
+// newInstanceRegistry creates a new instance registry.
+func newInstanceRegistry() *instanceRegistry {
 	return &instanceRegistry{
 		instances: make(map[string]*instance.Instance),
 	}
diff --git a/pkg/manager/remote.go b/pkg/manager/remote.go
index 50d2463..f149fa9 100644
--- a/pkg/manager/remote.go
+++ b/pkg/manager/remote.go
@@ -23,8 +23,8 @@ type remoteManager struct {
 	instanceToNode map[string]*config.NodeConfig // instance name -> node config
 }
 
-// NewRemoteManager creates a new remote manager.
-func NewRemoteManager(nodes map[string]config.NodeConfig, timeout time.Duration) *remoteManager {
+// newRemoteManager creates a new remote manager.
+func newRemoteManager(nodes map[string]config.NodeConfig, timeout time.Duration) *remoteManager {
 	if timeout <= 0 {
 		timeout = 30 * time.Second
 	}