diff --git a/docs/messaging.rst b/docs/messaging.rst
index 21c3698c3..5df8ecd29 100644
--- a/docs/messaging.rst
+++ b/docs/messaging.rst
@@ -1190,6 +1190,32 @@ The `inspectVariables` is meant to retrieve the values of all the variables that
           }
       }
 
+The ``richInspectVariables`` request allows to get the rich representation of a variable that has been defined in the kernel.
+
+  Content of the ``richInspectVariables`` request::
+
+      {
+          'type' : 'request',
+          'command' : 'richInspectVariables',
+          'arguments' : {
+              'variableName' : str,
+              # The frameId is used when the debugger hit a breakpoint only.
+              'frameId' : int
+          }
+      }
+
+  Content of the ``richInspectVariables`` response::
+
+      {
+          'type' : 'response',
+          'success' : bool,
+          'body' : {
+              # Dictionary of rich reprensentations of the variable
+              'data' : dict,
+              'metadata' : dict
+          }
+      }
+
 .. versionadded:: 5.5
 
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