fix

packages/core/src/cli/mf.ts

@@ -25,8 +25,15 @@ async function initMFRsbuild(
   }
 
   mfRsbuildConfig.config = changeEnvToDev(mfRsbuildConfig.config);
+
   const rsbuildInstance = await createRsbuild({
-    rsbuildConfig: mfRsbuildConfig.config,
+    rsbuildConfig: {
+      ...mfRsbuildConfig.config,
+      plugins: [
+        ...(rslibConfig.plugins || []),
+        ...(mfRsbuildConfig.config.plugins || []),
+      ],
+    },
   });
   const devServer = await rsbuildInstance.startDevServer();
 

packages/core/src/config.ts

@@ -4,6 +4,7 @@ import {
   type EnvironmentConfig,
   type RsbuildConfig,
   type RsbuildPlugin,
+  type RsbuildPlugins,
   defineConfig as defineRsbuildConfig,
   loadConfig as loadRsbuildConfig,
   mergeRsbuildConfig,
@@ -1143,8 +1144,11 @@ const composeExternalHelpersConfig = (
   return defaultConfig;
 };
 
-async function composeLibRsbuildConfig(config: LibConfig) {
-  checkMFPlugin(config);
+async function composeLibRsbuildConfig(
+  config: LibConfig,
+  sharedPlugins?: RsbuildPlugins,
+) {
+  checkMFPlugin(config, sharedPlugins);
 
   // Get the absolute path of the root directory to align with Rsbuild's default behavior
   const rootPath = config.root
@@ -1258,7 +1262,11 @@ export async function composeCreateRsbuildConfig(
   rslibConfig: RslibConfig,
 ): Promise<RsbuildConfigWithLibInfo[]> {
   const constantRsbuildConfig = await createConstantRsbuildConfig();
-  const { lib: libConfigsArray, plugins, ...sharedRsbuildConfig } = rslibConfig;
+  const {
+    lib: libConfigsArray,
+    plugins: sharedPlugins,
+    ...sharedRsbuildConfig
+  } = rslibConfig;
 
   if (!libConfigsArray) {
     throw new Error(
@@ -1274,7 +1282,10 @@ export async function composeCreateRsbuildConfig(
 
     // Merge the configuration of each environment based on the shared Rsbuild
     // configuration and Lib configuration in the settings.
-    const libRsbuildConfig = await composeLibRsbuildConfig(userConfig);
+    const libRsbuildConfig = await composeLibRsbuildConfig(
+      userConfig,
+      sharedPlugins,
+    );
 
     // Reset certain fields because they will be completely overridden by the upcoming merge.
     // We don't want to retain them in the final configuration.

packages/core/src/utils/helper.ts

@@ -184,16 +184,20 @@ export function isPluginIncluded(
   );
 }
 
-export function checkMFPlugin(config: LibConfig): boolean {
+export function checkMFPlugin(
+  config: LibConfig,
+  sharedPlugins?: RsbuildPlugins,
+): boolean {
   if (config.format !== 'mf') {
     return true;
   }
 
   // https://github.com/module-federation/core/blob/4e5c4b96ee45899f3ba5904b8927768980d5ad0e/packages/rsbuild-plugin/src/cli/index.ts#L17
-  const added = isPluginIncluded(
-    'rsbuild:module-federation-enhanced',
-    config.plugins,
-  );
+  const added = isPluginIncluded('rsbuild:module-federation-enhanced', [
+    ...(sharedPlugins || []),
+    ...(config.plugins || []),
+  ]);
+
   if (!added) {
     logger.warn(
       `${color.green('format: "mf"')} should be used with ${color.blue(