Add tools/list request

Author: bandoti

common/toolcall/mcp_messages.cpp

@@ -179,3 +179,23 @@ mcp::initialize_response mcp::initialize_response::fromJson(const nlohmann::json
 
     return initialize_response(j["id"], name, version, protoVersion, caps);
 }
+
+mcp::tools_list_request::tools_list_request(std::optional<nlohmann::json> id, std::string cursor)
+    : request(id, "tools/list"),
+      cursor_(std::move(cursor))
+{
+    refreshParams();
+}
+
+void mcp::tools_list_request::cursor(std::string cursor) {
+    cursor_ = std::move(cursor);
+    refreshParams();
+}
+
+void mcp::tools_list_request::refreshParams() {
+    if (! cursor_.empty()) {
+        json params;
+        params["cursor"] = cursor_;
+        this->params(params);
+    }
+}

common/toolcall/mcp_messages.hpp

@@ -165,6 +165,19 @@ namespace mcp
 
     class initialized_notification : public notification {
     public:
-        initialized_notification() : notification("notifications/initialized") {}
+        initialized_notification()
+            : notification("notifications/initialized") {}
+    };
+
+    class tools_list_request : public request {
+    public:
+        tools_list_request(std::optional<nlohmann::json> id, std::string cursor = "");
+
+        void cursor(std::string cursor);
+        const std::string & cursor() { return cursor_; }
+
+    private:
+        void refreshParams();
+        std::string cursor_;
     };
 }