diff --git a/package.json b/package.json
index 6da7013..096164e 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@vue-macros/cli",
   "type": "module",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "packageManager": "pnpm@8.10.5",
   "description": "Rewriting at vue macros powered by ast-grep.",
   "author": "zhiyuanzmj <zhiyuanzmj@gmail.com>",
diff --git a/playground/src/App.vue b/playground/src/App.vue
index 5b60e41..18eb10c 100644
--- a/playground/src/App.vue
+++ b/playground/src/App.vue
@@ -4,13 +4,13 @@ import Comp from './components/Comp.vue'
 const list = [{ id: 1 }]
 const bind = { }
 const on = { submit: () => {} }
-const select = $ref<{ id: number }>()
+const select = $ref<{ id: number }>(list[0])
 </script>
 
 <template>
   <Comp
     v-for="i in list"
-    v-if="list"
+    v-if="select"
     :key="i.id"
     v-bind="bind"
     v-model:id="i.id"
@@ -19,6 +19,7 @@ const select = $ref<{ id: number }>()
     v-on="on"
     @click.once="select = i"
     @submit="alert"
+    @update="select.id = $event"
   >
     <template v-slot:default="{ id }">
       <div>{{ id }}</div>
diff --git a/playground/src/components/Comp.vue b/playground/src/components/Comp.vue
index ac6065d..90eb9a3 100644
--- a/playground/src/components/Comp.vue
+++ b/playground/src/components/Comp.vue
@@ -1,6 +1,6 @@
 <template>
-  <div>
-    <slot :id="`${id}`" />
+  <div @click="()=> $emit('update', 2)">
+    <slot :id="`${id}`"/>
     <slot name="bottom" v-bind="{ foo: id }" />
   </div>
 </template>
@@ -8,6 +8,10 @@
 <script setup lang="ts">
 const { id } = defineProps<{ id: number }>()
 
+defineEmits<{
+  update: [id: number]
+}>()
+
 defineSlots<{
   default: (props: { id: string }) => any
   bottom: (props: { foo: number }) => any
diff --git a/src/index.ts b/src/index.ts
index d43496b..26afe61 100755
--- a/src/index.ts
+++ b/src/index.ts
@@ -5,8 +5,29 @@ import { $, argv, chalk, fs, glob, path } from 'zx'
 import { select } from '@inquirer/prompts'
 import { readPackageJSON } from 'pkg-types'
 
-if (argv._[0] !== 'sg') {
-  console.log(chalk.red('Do you want to use `sg` cmd?'))
+function printHelp() {
+  console.log(`
+Rewriting at Vue Macros using ast-grep.
+
+${chalk.underline('Usage:')} vue-macros <command> [directory] {(default current directory)}
+
+${chalk.underline('Commands:')}
+  sg        Rewrite code in specified directory
+ 
+${chalk.underline('Options:')}
+  -h, --help    Print help (see more with '--help')
+  -V, --version Print version
+  `)
+}
+if (argv._[0] !== 'sg' || argv.help || argv.h) {
+  printHelp()
+  process.exit()
+}
+
+const dirname = path.dirname(fileURLToPath(import.meta.url))
+if (argv.v || argv.version) {
+  const localPackageJson = await readPackageJSON(dirname)
+  console.log(`${localPackageJson.name} ${localPackageJson.version}`)
   process.exit()
 }
 
@@ -50,12 +71,6 @@ if (macro === 'short-v-model') {
   })
 }
 
-const dirname = path.dirname(fileURLToPath(import.meta.url))
-if (argv.v || argv.version) {
-  const localPackageJson = await readPackageJSON(dirname)
-  console.log(`${localPackageJson.name} ${localPackageJson.version}`)
-}
-
 const target = path.resolve(argv._.at(1) || './src')
 async function toSetupSFC() {
   const extname = path.extname(target)
@@ -80,7 +95,10 @@ async function useTsx(cb = () => {}, action = 'clean') {
 if (['jsx-directive', 'setup-sfc'].includes(macro)) {
   await $`${sg} scan -c ${config}.yml -U --filter '^v-' ${target}`
   await $`${sg} scan -c ${config}.yml -U --filter '^${macro === 'setup-sfc' ? 'export-render' : render}' ${target}`
-  await useTsx(() => $`${sg} scan -c ${config}-tsx.yml -U --filter '^v-' ${target}`, macro === 'setup-sfc' ? 'delete' : 'clean')
+  await useTsx(async () => {
+    await $`${sg} scan -c ${config}-tsx.yml -U --filter '^v-' ${target}`
+    await $`${sg} scan -c ${config}-tsx.yml -U --filter '^define-emits' ${target}`
+  }, macro === 'setup-sfc' ? 'delete' : 'clean')
 
   if (macro === 'setup-sfc')
     toSetupSFC()
diff --git a/src/rules/define-emits.yml b/src/rules/define-emits.yml
new file mode 100644
index 0000000..d1a4c95
--- /dev/null
+++ b/src/rules/define-emits.yml
@@ -0,0 +1,25 @@
+id: define-emits add emit
+language: tsx
+rule:
+  kind: expression_statement
+  pattern: $A
+  has:
+    kind: call_expression
+    has:
+      kind: identifier
+      regex: ^defineEmits$
+  inside:
+    kind: program
+fix: |-
+  const emit = $A
+
+---
+
+id: define-emits to emit
+language: tsx
+rule:
+  kind: identifier
+  regex: ^\$emit$
+  inside:
+    kind: call_expression
+fix: emit
diff --git a/src/rules/jsx-directive/v-on.yml b/src/rules/jsx-directive/v-on.yml
index 73832e0..97aa4f9 100644
--- a/src/rules/jsx-directive/v-on.yml
+++ b/src/rules/jsx-directive/v-on.yml
@@ -46,21 +46,21 @@ fix:
 
 ---
 
-id: v-on
+id: v-on no $event
 language: tsx
 rule:
-  kind: jsx_expression
-  not:
-    has:
-      any:
-        - kind: member_expression
-        - kind: identifier
-        - kind: function
-        - kind: arrow_function
-    pattern: $A
-  follows:
-    kind: property_identifier
-    regex: ^on[A-Z_]
-    stopBy: end
+  matches: is-event
+  pattern: $A
 fix: |-
   {() => $A}
+
+---
+
+id: v-on has $event
+language: tsx
+rule:
+  matches: is-event
+  pattern: $A
+  regex: '\$event'
+fix: |-
+  {($event) => $A}
diff --git a/src/utils/is-event.yml b/src/utils/is-event.yml
new file mode 100644
index 0000000..9207b44
--- /dev/null
+++ b/src/utils/is-event.yml
@@ -0,0 +1,15 @@
+id: is-event
+language: tsx
+rule:
+  kind: jsx_expression
+  not:
+    has:
+      any:
+        - kind: member_expression
+        - kind: identifier
+        - kind: function
+        - kind: arrow_function
+  follows:
+    kind: property_identifier
+    regex: ^on[A-Z_]
+    stopBy: end
diff --git a/src/utils/is-template.yml b/src/utils/is-template.yml
index 9308f6c..6a9b217 100644
--- a/src/utils/is-template.yml
+++ b/src/utils/is-template.yml
@@ -2,6 +2,7 @@ id: is-template
 language: html
 rule:
   kind: element
+  regex: ^<template
   inside:
     kind: fragment
     has: