diff --git a/config.go b/config.go
index 877ba94..0714b61 100644
--- a/config.go
+++ b/config.go
@@ -86,9 +86,10 @@ type WorkersMode string
 const (
 	WorkersByRigID    WorkersMode = "rig-id" // rigid field, fallback to user
 	WorkersByUser     WorkersMode = "user"
-	WorkersByPass     WorkersMode = "password"
 	WorkersByPassword WorkersMode = "password"
-	WorkersByAgent    WorkersMode = "agent"
-	WorkersByIP       WorkersMode = "ip"
-	WorkersDisabled   WorkersMode = "false"
+	// WorkersByPass is kept as a compatibility alias for older configs.
+	WorkersByPass   WorkersMode = WorkersByPassword
+	WorkersByAgent  WorkersMode = "agent"
+	WorkersByIP     WorkersMode = "ip"
+	WorkersDisabled WorkersMode = "false"
 )
diff --git a/enum_string.go b/enum_string.go
new file mode 100644
index 0000000..5112438
--- /dev/null
+++ b/enum_string.go
@@ -0,0 +1,49 @@
+package proxy
+
+// String returns the stable name for one worker routing mode.
+//
+//	mode := WorkersByRigID
+//	_ = mode.String()
+func (mode WorkersMode) String() string {
+	return string(mode)
+}
+
+// String returns the stable name for one miner state.
+//
+//	state := MinerStateReady
+//	_ = state.String()
+func (state MinerState) String() string {
+	switch state {
+	case MinerStateWaitLogin:
+		return "wait_login"
+	case MinerStateWaitReady:
+		return "wait_ready"
+	case MinerStateReady:
+		return "ready"
+	case MinerStateClosing:
+		return "closing"
+	default:
+		return "unknown"
+	}
+}
+
+// String returns the stable name for one event type.
+//
+//	eventType := EventAccept
+//	_ = eventType.String()
+func (eventType EventType) String() string {
+	switch eventType {
+	case EventLogin:
+		return "login"
+	case EventSubmit:
+		return "submit"
+	case EventAccept:
+		return "accept"
+	case EventReject:
+		return "reject"
+	case EventClose:
+		return "close"
+	default:
+		return "unknown"
+	}
+}