jsonschema: support mdDoc description

lib/jsonschema/default.nix

@@ -61,7 +61,7 @@ rec {
         inherit (option) default;
       };
       description = lib.optionalAttrs (option ? description) {
-        inherit (option) description;
+        description = option.description.text or option.description;
       };
     in
 
@@ -186,8 +186,10 @@ rec {
       in
       default // description // {
         type = "array";
-        items = parseOption nestedOption;
       }
+      // (lib.optionalAttrs (! isExcludedOption nestedOption) {
+        items = parseOption nestedOption;
+      })
 
     # parse list of unspecified
     else if

lib/jsonschema/test_parseOption.nix

@@ -39,6 +39,28 @@ in
       };
     };
 
+  testDescriptionIsAttrs =
+    let
+      evaledConfig = lib.evalModules {
+        modules = [{
+          options.opt = lib.mkOption {
+            type = lib.types.bool;
+            description = {
+              _type = "mdDoc";
+              text = description;
+            };
+          };
+        }];
+      };
+    in
+    {
+      expr = slib.parseOption evaledConfig.options.opt;
+      expected = {
+        type = "boolean";
+        inherit description;
+      };
+    };
+
   testBool =
     let
       default = false;