diff --git a/core/src/private.html b/core/src/private.html
index 48948a2..253ae3e 100644
--- a/core/src/private.html
+++ b/core/src/private.html
@@ -9,7 +9,7 @@
           "vue": "/vendor/vue.mjs",
           "vue-router": "/vendor/vue-router.mjs",
           "pinia": "/vendor/pinia.mjs",
-          "@KTXC/utils/helpers/fetch-wrapper-core": "/js/shared-utils.js"
+          "@KTXC": "/js/ktxc.mjs"
         }
       }
     </script>
diff --git a/core/src/shared/index.ts b/core/src/shared/index.ts
new file mode 100644
index 0000000..34d4fb9
--- /dev/null
+++ b/core/src/shared/index.ts
@@ -0,0 +1,28 @@
+/**
+ * KTXC Host SDK
+ *
+ * This is the single public contract between the host application and modules.
+ * Modules must import from '@KTXC' (this file), never from '@KTXC/...' sub-paths.
+ * At runtime, '@KTXC' resolves to '/js/ktxc.mjs' via the import map.
+ */
+
+// Stores
+export { useModuleStore } from '../stores/moduleStore'
+export { useTenantStore } from '../stores/tenantStore'
+export { useUserStore } from '../stores/userStore'
+export { useIntegrationStore } from '../stores/integrationStore'
+export { useLayoutStore } from '../stores/layoutStore'
+
+// Composables
+export { useUser } from '../composables/useUser'
+export { useClipboard } from '../composables/useClipboard'
+
+// Services
+export { userService } from '../services/user/userService'
+
+// Utilities
+export { fetchWrapper } from '../utils/helpers/fetch-wrapper'
+export { createFetchWrapper } from '../utils/helpers/fetch-wrapper-core'
+
+// Types
+export type { ModuleIntegrations } from '../types/moduleTypes'
diff --git a/core/src/utils/helpers/shared.ts b/core/src/utils/helpers/shared.ts
deleted file mode 100644
index 598600f..0000000
--- a/core/src/utils/helpers/shared.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-/**
- * Shared utilities entry point for external modules
- * This file is built separately and exposed via import map
- */
-
-export {
-  createFetchWrapper,
-  type FetchWrapperOptions,
-  type RequestCallOptions,
-} from './fetch-wrapper-core';
diff --git a/vite.config.ts b/vite.config.ts
index 8106dff..1b78632 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -72,15 +72,16 @@ export default defineConfig(({ mode }) => ({
       input: {
         public: path.resolve(__dirname, 'core/src/public.html'),
         private: path.resolve(__dirname, 'core/src/private.html'),
-        'shared-utils': path.resolve(__dirname, 'core/src/utils/helpers/shared.ts'),
+        'ktxc': path.resolve(__dirname, 'core/src/shared/index.ts'),
       },
+      preserveEntrySignatures: 'exports-only',
       output: {
-        // Preserve export names for shared-utils (used via import map by modules)
+        // Preserve export names for ktxc (used via import map by modules)
         minifyInternalExports: false,
         entryFileNames: (chunkInfo) => {
-          // Keep shared-utils without hash for stable import map reference
-          if (chunkInfo.name === 'shared-utils') {
-            return `js/[name].js`;
+          // Keep ktxc without hash for stable import map references
+          if (chunkInfo.name === 'ktxc') {
+            return `js/ktxc.mjs`;
           }
           return `js/[name]-[hash].js`;
         },