diff --git a/AnotherIM/xmpp/XMPPClient.swift b/AnotherIM/xmpp/XMPPClient.swift
index f528668..35ba221 100644
--- a/AnotherIM/xmpp/XMPPClient.swift
+++ b/AnotherIM/xmpp/XMPPClient.swift
@@ -93,7 +93,8 @@ final class XMPPClient {
         ParserModule(self.fire),
         SessionModule(),
         AuthorizationModule(self.storage),
-        StanzaModule(self.storage)
+        StanzaModule(self.storage),
+        DiscoveryModule()
     ]
 
     init(storage: any XMPPClientStorageProtocol, userAgent: UserAgent) {
diff --git a/AnotherIM/xmpp/models/Stanza.swift b/AnotherIM/xmpp/models/Stanza.swift
index 5ae7200..85a89e3 100644
--- a/AnotherIM/xmpp/models/Stanza.swift
+++ b/AnotherIM/xmpp/models/Stanza.swift
@@ -1,14 +1,14 @@
 import Foundation
 
-enum StanzaType {
-    enum IqType: String {
+enum StanzaType: Codable & Equatable {
+    enum IqType: String, Codable & Equatable {
         case get
         case set
         case result
         case error
     }
 
-    enum MessageType: String {
+    enum MessageType: String, Codable & Equatable {
         case chat
         case groupchat
         case headline
@@ -17,7 +17,7 @@ enum StanzaType {
         case none
     }
 
-    enum PresenceType: String {
+    enum PresenceType: String, Codable & Equatable {
         case subscribe
         case unsubscribe
         case subscribed
diff --git a/AnotherIM/xmpp/modules/disco/DiscoveryModule.swift b/AnotherIM/xmpp/modules/disco/DiscoveryModule.swift
new file mode 100644
index 0000000..9253b8c
--- /dev/null
+++ b/AnotherIM/xmpp/modules/disco/DiscoveryModule.swift
@@ -0,0 +1,35 @@
+// XEP-0030
+import Foundation
+
+// TODO: Implement
+final class DiscoveryModule: XmppModule {
+    let id = "Discovery module"
+
+    private let reqId = ""
+
+    func reduce(oldState: ClientState, with _: Event) -> ClientState {
+        oldState
+    }
+
+    func process(state _: ClientState, with _: Event) async -> Event? {
+        // switch event {
+        // case .streamReady:
+        //     let req = Stanza.iqGet(payload: XMLElement(name: "query", xmlns: "http://jabber.org/protocol/disco#info", attributes: [:], content: nil, nodes: []))
+        //     if let req {
+        //         return .stanzaOutbound(req)
+        //     } else {
+        //         return nil
+        //     }
+        //
+        // case .stanzaInbound(let stanza):
+        //     if stanza.id == reqId && stanza.type == .iq(.result) {
+        //         print(stanza)
+        //         return nil
+        //     }
+        //
+        // default:
+        //     return nil
+        // }
+        nil
+    }
+}