diff --git a/packages/core/src/context.ts b/packages/core/src/context.ts
index b4b90f4..29e0d0c 100644
--- a/packages/core/src/context.ts
+++ b/packages/core/src/context.ts
@@ -25,8 +25,8 @@ export namespace Context {
 
     export interface Accessor {
       type: 'accessor'
-      get: () => any
-      set?: (value: any) => boolean
+      get: (this: Context) => any
+      set?: (this: Context, value: any) => boolean
     }
 
     export interface Alias {
@@ -88,8 +88,8 @@ export class Context {
     self.registry = new Registry(self, config)
     self.lifecycle = new Lifecycle(self)
     self.mixin('scope', ['config', 'runtime', 'effect', 'collect', 'accept', 'decline'])
-    self.mixin('registry', ['using', 'inject', 'plugin', 'dispose'])
-    self.mixin('lifecycle', ['on', 'once', 'off', 'after', 'parallel', 'emit', 'serial', 'bail', 'start', 'stop'])
+    self.mixin('registry', ['using', 'inject', 'plugin'])
+    self.mixin('lifecycle', ['on', 'once', 'parallel', 'emit', 'serial', 'bail', 'start', 'stop'])
 
     const attach = (internal: Context[typeof symbols.internal]) => {
       if (!internal) return
diff --git a/packages/core/src/events.ts b/packages/core/src/events.ts
index f927158..11ecc50 100644
--- a/packages/core/src/events.ts
+++ b/packages/core/src/events.ts
@@ -39,7 +39,7 @@ export interface EventOptions {
   global?: boolean
 }
 
-interface Hook extends EventOptions {
+export interface Hook extends EventOptions {
   ctx: Context
   callback: (...args: any[]) => any
 }
@@ -123,8 +123,7 @@ export default class Lifecycle {
     }
   }
 
-  getHooks(name: keyof any, thisArg?: object) {
-    const hooks = this._hooks[name] || []
+  filterHooks(hooks: Hook[], thisArg?: object) {
     return hooks.slice().filter((hook) => {
       const filter = thisArg?.[Context.filter]
       return hook.global || !filter || filter.call(thisArg, hook.ctx)
@@ -137,7 +136,7 @@ export default class Lifecycle {
     if (name !== 'internal/event') {
       this.emit('internal/event', type, name, args, thisArg)
     }
-    for (const hook of this.getHooks(name, thisArg)) {
+    for (const hook of this.filterHooks(this._hooks[name] || [], thisArg)) {
       yield hook.callback.apply(thisArg, args)
     }
   }
diff --git a/packages/core/src/reflect.ts b/packages/core/src/reflect.ts
index a4bcd7f..4c88c5c 100644
--- a/packages/core/src/reflect.ts
+++ b/packages/core/src/reflect.ts
@@ -12,7 +12,8 @@ declare module './context' {
     provide(name: string, value?: any, builtin?: boolean): void
     accessor(name: string, options: Omit<Context.Internal.Accessor, 'type'>): void
     alias(name: string, aliases: string[]): void
-    mixin(name: string, mixins: string[] | Dict<string>): void
+    mixin<K extends string & keyof this>(name: K, mixins: (keyof this & keyof this[K])[] | Dict<string>): void
+    mixin<T extends {}>(source: T, mixins: (keyof this & keyof T)[] | Dict<string>): void
   }
 }
 
@@ -160,19 +161,20 @@ export default class ReflectService {
     }
   }
 
-  mixin(name: string, mixins: string[] | Dict<string>) {
+  mixin(source: any, mixins: string[] | Dict<string>) {
     const entries = Array.isArray(mixins) ? mixins.map(key => [key, key]) : Object.entries(mixins)
+    const getTarget = typeof source === 'string' ? (ctx: Context) => ctx[source] : () => source
     for (const [key, value] of entries) {
       this.accessor(value, {
         get() {
-          const service = this[name]
+          const service = getTarget(this)
           if (isNullable(service)) return service
           const value = Reflect.get(service, key)
-          if (typeof value !== 'function') return value
+          if (typeof value !== 'function' || typeof source !== 'string') return value
           return value.bind(service)
         },
         set(value) {
-          return Reflect.set(this[name], key, value)
+          return Reflect.set(getTarget(this), key, value)
         },
       })
     }