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diff --git a/indra/newview/rlvhandler.h b/indra/newview/rlvhandler.h
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+/**
+ * @file rlvhandler.h
+ * @author Kitty Barnett
+ * @brief Primary command process and orchestration class
+ *
+ * $LicenseInfo:firstyear=2024&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2024, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#pragma once
+
+#include "llchat.h"
+#include "llsingleton.h"
+
+#include "rlvhelper.h"
+
+class LLViewerObject;
+
+// ============================================================================
+// RlvHandler class
+//
+
+class RlvHandler : public LLSingleton<RlvHandler>
+{
+    template<Rlv::EParamType> friend struct Rlv::CommandHandlerBaseImpl;
+
+    LLSINGLETON_EMPTY_CTOR(RlvHandler);
+
+    /*
+     * Command processing
+     */
+public:
+    // Command processing helper functions
+    bool         handleSimulatorChat(std::string& message, const LLChat& chat, const LLViewerObject* chatObj);
+    Rlv::ECmdRet processCommand(const LLUUID& idObj, const std::string& stCmd, bool fromObj);
+protected:
+    Rlv::ECmdRet processCommand(std::reference_wrapper<const RlvCommand> rlvCmdRef, bool fromObj);
+
+    /*
+     * Helper functions
+     */
+public:
+    // Initialization (deliberately static so they can safely be called in tight loops)
+    static bool canEnable();
+    static bool isEnabled() { return mIsEnabled; }
+    static bool setEnabled(bool enable);
+
+    /*
+     * Event handling
+     */
+public:
+    // The command output signal is triggered whenever a command produces channel or debug output
+    using command_output_signal_t = boost::signals2::signal<void (const RlvCommand&, S32, const std::string&)>;
+    boost::signals2::connection setCommandOutputCallback(const command_output_signal_t::slot_type& cb) { return mOnCommandOutput.connect(cb); }
+
+protected:
+    command_output_signal_t mOnCommandOutput;
+private:
+    static bool mIsEnabled;
+};
+
+// ============================================================================