diff --git a/src/core/module-loading.ts b/src/core/module-loading.ts
index 33ae374..bacf73b 100644
--- a/src/core/module-loading.ts
+++ b/src/core/module-loading.ts
@@ -27,7 +27,6 @@ export async function defaultModuleLoader<T extends Module>(absPath: string): Mo
         module = module.getInstance(); 
     }
     //todo readd class modules
-    assert.ok(module.type > 0 && module.type < 1<<10, 'Found a module that does not have a valid type');
     return Ok({ module, absPath });
 }
 
diff --git a/src/core/structures/module-store.ts b/src/core/structures/module-store.ts
index f2a60fc..e8cb7ee 100644
--- a/src/core/structures/module-store.ts
+++ b/src/core/structures/module-store.ts
@@ -1,10 +1,12 @@
 import { CoreModuleStore } from '../contracts';
+import { Module, CommandMeta } from '../types/modules';
 
 /*
  * @internal
  * Version 4.0.0 will internalize this api. Please refrain from using ModuleStore!
- * For interacting with ModuleStore, use CoreModuleStore contract.
+ * For interacting with modules, use the ModuleManager instead.
  */
 export class ModuleStore implements CoreModuleStore {
+    metadata  = new WeakMap<Module, CommandMeta>();
     commands = new Map<string, string>();
 }
diff --git a/src/handler/commands.ts b/src/handler/commands.ts
index 2f388c2..d645b50 100644
--- a/src/handler/commands.ts
+++ b/src/handler/commands.ts
@@ -1,6 +1,6 @@
 import { ClientEvents } from 'discord.js';
 import { CommandType, EventType, PluginType } from '../core/structures';
-import { AnyCommandPlugin, AnyEventPlugin, CommandArgs, EventArgs } from '../core/types/plugins';
+import { AnyCommandPlugin, AnyEventPlugin, CommandArgs, ControlPlugin, EventArgs } from '../core/types/plugins';
 import { CommandModule, EventModule, InputCommand, InputEvent } from '../core/types/modules';
 import { partitionPlugins } from '../core/functions';
 import { Awaitable } from '../shared';
@@ -62,13 +62,20 @@ export function discordEvent<T extends keyof ClientEvents>(mod: {
 export abstract class CommandExecutable<const Type extends CommandType> {
     abstract type: Type;
     plugins?: AnyCommandPlugin[];
+    onEvent?: ControlPlugin[]
     private static _instance : CommandModule;
     static readonly [clazz] = true;
+
     constructor() {
-       const [onEvent, plugins] = partitionPlugins(this.plugins);
-       this.plugins = plugins as AnyCommandPlugin[];
-       Reflect.set(this, 'onEvent', onEvent);
+       if(this.onEvent) {
+          console.warn('Put control plugins in `onEvent` into the `plugins` field, as it\'s automatically handled in v3.');
+       } else {
+          const [onEvent, plugins] = partitionPlugins(this.plugins);
+          this.plugins = plugins as AnyCommandPlugin[];
+          Reflect.set(this, 'onEvent', onEvent);
+       }
     }
+
     static getInstance() {
         if (!CommandExecutable._instance) {
             //@ts-ignore
@@ -76,6 +83,7 @@ export abstract class CommandExecutable<const Type extends CommandType> {
         }
         return CommandExecutable._instance;
     }
+
     abstract execute(...args: CommandArgs<Type, PluginType.Control>) : Awaitable<unknown>
 
 }
@@ -88,11 +96,16 @@ export abstract class EventExecutable<Type extends EventType> {
     abstract type: Type;
     plugins?: AnyEventPlugin[];
     static readonly [clazz] = true;
+    onEvent?: ControlPlugin[]
     private static _instance : EventModule;
     constructor() {
-       const [onEvent, plugins] = partitionPlugins(this.plugins);
-        this.plugins = plugins as AnyEventPlugin[];
-        Reflect.set(this, 'onEvent', onEvent);
+        if(this.onEvent) {
+          console.warn('Put control plugins in `onEvent` into the `plugins` field, as it\'s automatically handled in v3.');
+        } else {
+            const [onEvent, plugins] = partitionPlugins(this.plugins);
+            this.plugins = plugins as AnyEventPlugin[];
+            Reflect.set(this, 'onEvent', onEvent);
+        }
     }
     static getInstance() {
         if (!EventExecutable._instance) {
diff --git a/src/handler/events/ready.ts b/src/handler/events/ready.ts
index 5e476f0..969bbc9 100644
--- a/src/handler/events/ready.ts
+++ b/src/handler/events/ready.ts
@@ -7,6 +7,7 @@ import { SernEmitter } from '../../core';
 import { Processed, DependencyList } from '../types';
 import { buildModules, callInitPlugins } from './generic';
 import { AnyModule } from '../../core/types/modules';
+import * as assert from 'node:assert';
 
 export function startReadyEvent(
     [sEmitter,,, moduleManager, client]: DependencyList,
@@ -41,6 +42,7 @@ function registerModule<T extends Processed<AnyModule>>(
 
     const { id, fullPath } = manager.getMetadata(module);
 
+    assert.ok(module.type > 0 && module.type < 1<<10, `Found ${module}, which does not have a valid type`);
     if (module.type === CommandType.Both 
         || module.type === CommandType.Text
     ) {
diff --git a/src/handler/sern.ts b/src/handler/sern.ts
index ab3752d..7ffe9bc 100644
--- a/src/handler/sern.ts
+++ b/src/handler/sern.ts
@@ -18,9 +18,6 @@ import { Wrapper } from '../shared';
  * Sern.init({
  *     commands: 'dist/commands',
  *     events: 'dist/events',
- *     containerConfig : {
- *         get: useContainer
- *     }
  * })
  * ```
  */
@@ -32,7 +29,7 @@ export function init(wrapper: Wrapper) {
     const dependencies = useDependencies();
     const logger = dependencies[2];
     const errorHandler = dependencies[1];
-    const mode = debugModuleLoading(process.env.MODE);
+    const mode = debugModuleLoading(wrapper.mode ?? process.env.MODE);
 
     if (wrapper.events !== undefined) {
         makeEventsHandler(