diff --git a/pkg/node/message.go b/pkg/node/message.go
index 557dec8..d49e8d2 100644
--- a/pkg/node/message.go
+++ b/pkg/node/message.go
@@ -7,16 +7,14 @@ import (
 	"github.com/google/uuid"
 )
 
-// Protocol version constants
+// if payload.Version != ProtocolVersion { return errVersionMismatch }
+// if payload.Version < MinProtocolVersion { return errUnsupportedVersion }
 const (
-	// ProtocolVersion is the current protocol version
-	ProtocolVersion = "1.0"
-	// MinProtocolVersion is the minimum supported version
+	ProtocolVersion    = "1.0"
 	MinProtocolVersion = "1.0"
 )
 
-// SupportedProtocolVersions lists all protocol versions this node supports.
-// Used for version negotiation during handshake.
+// if !IsProtocolVersionSupported(peer.Version) { return errUnsupportedVersion }
 var SupportedProtocolVersions = []string{"1.0"}
 
 // if node.IsProtocolVersionSupported(peerVersion) { proceed() }
@@ -93,7 +91,7 @@ func NewMessage(msgType MessageType, from, to string, payload interface{}) (*Mes
 	}, nil
 }
 
-// resp, err := msg.Reply(MsgPong, PongPayload{SentAt: ping.SentAt, ReceivedAt: time.Now().UnixMilli()})
+// response, err := msg.Reply(MsgPong, PongPayload{SentAt: ping.SentAt, ReceivedAt: time.Now().UnixMilli()})
 // if err != nil { return nil, err }
 func (message *Message) Reply(msgType MessageType, payload interface{}) (*Message, error) {
 	reply, err := NewMessage(msgType, message.To, message.From, payload)