Thank you kindly, Idb for a patch that:

Added AGENT_ATTACHMENTS and AGENT_SCRIPTED to llGetAgentInfo
Added to llGetAgentSize to include shoes in avatar height calculation.

OpenSim/Region/Environment/Scenes/ScenePresence.cs

@@ -2447,6 +2447,27 @@ namespace OpenSim.Region.Environment.Scenes
             }
         }
 
+        public bool HasAttachments()
+        {
+            return m_attachments.Count > 0;   
+        }
+
+        public bool HasScriptedAttachments()
+        {
+            lock (m_attachments)
+            {
+                foreach (SceneObjectGroup gobj in m_attachments)
+                {
+                    if (gobj != null)
+                    {
+                        if (gobj.RootPart.ContainsScripts())
+                            return true;
+                    }
+                }
+            }
+            return false;
+        }
+
         public void RemoveAttachment(SceneObjectGroup gobj)
         {
             lock (m_attachments)

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs

@@ -4626,6 +4626,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return 0;
         }
 
+        /// <summary>
+        /// Not fully implemented yet. Still to do:-
+        /// AGENT_SITTING
+        /// AGENT_ON_OBJECT
+        /// AGENT_IN_AIR
+        /// AGENT_CROUCHING
+        /// AGENT_BUSY
+        /// Remove as they are done
+        /// </summary>
         public LSL_Integer llGetAgentInfo(string id)
         {
             m_host.AddScriptLPS(1);
@@ -4651,6 +4660,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 flags |= ScriptBaseClass.AGENT_ALWAYS_RUN;
             }
 
+            if (agent.HasAttachments())
+            {
+                flags |= ScriptBaseClass.AGENT_ATTACHMENTS;
+                if (agent.HasScriptedAttachments())
+                    flags |= ScriptBaseClass.AGENT_SCRIPTED;
+            }
+
             if ((agent.AgentControlFlags & (uint)AgentManager.ControlFlags.AGENT_CONTROL_FLY) != 0)
             {
                 flags |= ScriptBaseClass.AGENT_FLYING;
@@ -4900,9 +4916,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 // in edit appearance in SL to find the ones that affected the height and how
                 // much they affected it.
                 float avatarHeight = 1.23077f  // Shortest possible avatar height
-                                   + 0.516945f * (float)parms[25] / 255.0f   // Body length
+                                   + 0.516945f * (float)parms[25] / 255.0f   // Body height
                                    + 0.072514f * (float)parms[120] / 255.0f  // Head size
                                    + 0.3836f * (float)parms[125] / 255.0f    // Leg length
+                                   + 0.08f * (float)parms[77] / 255.0f    // Shoe heel height
+                                   + 0.07f * (float)parms[78] / 255.0f    // Shoe platform height
                                    + 0.076f * (float)parms[148] / 255.0f;    // Neck length
                 agentSize = new LSL_Vector(0.45, 0.6, avatarHeight);
             }