diff --git a/packages/concerto-core/lib/decoratormanager.js b/packages/concerto-core/lib/decoratormanager.js
index f45966fe6..f115841c0 100644
--- a/packages/concerto-core/lib/decoratormanager.js
+++ b/packages/concerto-core/lib/decoratormanager.js
@@ -813,3 +813,4 @@ class DecoratorManager {
 }
 
 module.exports = DecoratorManager;
+module.exports.DCS_MODEL = DCS_MODEL;
\ No newline at end of file
diff --git a/packages/concerto-types/scripts/codegen.js b/packages/concerto-types/scripts/codegen.js
index 6e551b09d..fd35f1b69 100644
--- a/packages/concerto-types/scripts/codegen.js
+++ b/packages/concerto-types/scripts/codegen.js
@@ -4,12 +4,14 @@ const { ModelManager } = require('@accordproject/concerto-core');
 const { CodeGen: { TypescriptVisitor }} = require('@accordproject/concerto-codegen');
 const { FileWriter } = require('@accordproject/concerto-util');
 const path = require('path');
+const { DCS_MODEL }= require('@accordproject/concerto-core');
 
 /**
  * Generate TypeScript files from the metamodel.
  */
 async function main() {
     const modelManager = new ModelManager({addMetamodel:true, strict: true});
+    modelManager.addCTOModel(DCS_MODEL, 'decoratorcommands@0.4.0.cto');
     const visitor = new TypescriptVisitor();
 
     const fileWriter = new FileWriter(path.resolve(__dirname, '..', 'src', 'generated'));
diff --git a/packages/concerto-types/src/generated/unions/concerto@1.0.0.ts b/packages/concerto-types/src/generated/unions/concerto@1.0.0.ts
index 5a81da532..b0826b3ec 100644
--- a/packages/concerto-types/src/generated/unions/concerto@1.0.0.ts
+++ b/packages/concerto-types/src/generated/unions/concerto@1.0.0.ts
@@ -26,6 +26,14 @@ import type {
 	IModel,
 	IModels
 } from './concerto.metamodel@1.0.0';
+import type {
+	IDecoratorCommandSetReference,
+	CommandType,
+	ICommandTarget,
+	MapElement,
+	ICommand,
+	IDecoratorCommandSet
+} from './org.accordproject.decoratorcommands@0.4.0';
 
 // interfaces
 export interface IConcept {
@@ -51,7 +59,11 @@ ILongDomainValidator |
 IAliasedType | 
 IImport | 
 IModel | 
-IModels;
+IModels | 
+IDecoratorCommandSetReference | 
+ICommandTarget | 
+ICommand | 
+IDecoratorCommandSet;
 
 export interface IAsset extends IConcept {
    $identifier: string;
diff --git a/packages/concerto-types/src/generated/unions/org.accordproject.decoratorcommands@0.4.0.ts b/packages/concerto-types/src/generated/unions/org.accordproject.decoratorcommands@0.4.0.ts
new file mode 100644
index 000000000..7f97a946e
--- /dev/null
+++ b/packages/concerto-types/src/generated/unions/org.accordproject.decoratorcommands@0.4.0.ts
@@ -0,0 +1,47 @@
+/* eslint-disable @typescript-eslint/no-empty-interface */
+// Generated code for namespace: org.accordproject.decoratorcommands@0.4.0
+
+// imports
+import {IDecorator} from './concerto.metamodel@1.0.0';
+import {IConcept} from './concerto@1.0.0';
+
+// interfaces
+export interface IDecoratorCommandSetReference extends IConcept {
+   name: string;
+   version: string;
+}
+
+export enum CommandType {
+   UPSERT = 'UPSERT',
+   APPEND = 'APPEND',
+}
+
+export interface ICommandTarget extends IConcept {
+   namespace?: string;
+   declaration?: string;
+   property?: string;
+   properties?: string[];
+   type?: string;
+   mapElement?: MapElement;
+}
+
+export enum MapElement {
+   KEY = 'KEY',
+   VALUE = 'VALUE',
+   KEY_VALUE = 'KEY_VALUE',
+}
+
+export interface ICommand extends IConcept {
+   target: ICommandTarget;
+   decorator: IDecorator;
+   type: CommandType;
+   decoratorNamespace?: string;
+}
+
+export interface IDecoratorCommandSet extends IConcept {
+   name: string;
+   version: string;
+   includes?: IDecoratorCommandSetReference[];
+   commands: ICommand[];
+}
+