Thank you kindly, Snowdrop, for a patch that solves:

The current API for MRM is quite sparse, this patch 
supplies basic support for accessing the task 
inventory of object.

OpenSim/Region/OptionalModules/Scripting/Minimodule/Interfaces/IAvatar.cs

@@ -50,6 +50,12 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
 		//// <value>
 		/// Array of worn attachments, empty but not null, if no attachments are worn
 		/// </value>
-    	IAvatarAttachment[] Attachments { get; }
+
+		IAvatarAttachment[] Attachments { get; }
+
+		/// <summary>
+		/// Request to open an url clientside
+		/// </summary>
+		void LoadUrl(IObject sender, string message, string url);
     }
 }

OpenSim/Region/OptionalModules/Scripting/Minimodule/Interfaces/IInventoryItem.cs

@@ -0,0 +1,16 @@
+using System;
+using OpenMetaverse;
+
+namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
+{
+	
+	/// <summary>
+	/// This implements the methods needed to operate on individual inventory items.
+	/// </summary>
+	public interface IInventoryItem
+	{
+		int Type { get; }
+		UUID AssetID { get; }
+		T RetreiveAsset<T>() where T : OpenMetaverse.Asset, new();
+	}
+}

OpenSim/Region/OptionalModules/Scripting/Minimodule/Interfaces/IObject.cs

@@ -179,6 +179,10 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
         /// <param name="msg">The message to send to the user</param>
         void Say(string msg);
 
+		//// <value>
+		/// Grants access to the objects inventory
+		/// </value>
+		IObjectInventory Inventory { get; }
     }
 
     public enum PhysicsMaterial