Vue Expert (JavaScript)

What it does

When your agent uses it

• Building Vue 3 apps without TypeScript
• Adding JSDoc type hints to composables and component props
• Migrating a Vue 2 Options API project to the Composition API in JavaScript
• Prototyping quickly without a TypeScript setup
• Checking JSDoc coverage with ESLint

Example prompts

• “Write a UserCard component using script setup with JSDoc-typed props and emits.”
• “Convert this Options API form to the Composition API and keep the project in plain JavaScript.”
• “Create a useCounter composable in a .mjs file with @param and @returns annotations.”
• “Run ESLint with the JSDoc plugin and fix the missing annotations.”

Requirements

• Node.js with ESLint and `eslint-plugin-jsdoc`
• Vitest for the test step

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

1. 1Design architecture — Plan component structure and composables with JSDoc type annotations
2. 2Implement — Build with (no lang="ts"), .mjs` modules where needed
3. 3Annotate — Add comprehensive JSDoc comments (@typedef, @param, @returns, @type) for full type coverage; then run ESLint with the JSDoc…
4. 4Test — Verify with Vitest using JavaScript files; confirm JSDoc coverage on all public APIs; if tests fail, revisit the relevant…

What it can do on your machine

Read from SKILL.md and the folder at commit 1be15d8. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are javascript and vue).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Links to these hosts (documentation or services it may open):

  • github.com
  • synergetic.solutions
  • jeffallan.github.io

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Vue Expert (JavaScript) loads about 1.6k tokens when it runs, and up to ~9.4k if it reads all its reference files. Until then it costs about 147 tokens; SKILL.md has 363 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~147

When it runs · the whole SKILL.md, loaded when a task matches

~1.6k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~9.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Jeffallan/claude-skills at commit 1be15d8, republished under its MIT licence (© Jeffallan). 363 words, ~1,562 tokens.

name

vue-expert-js

description

Creates Vue 3 components, builds vanilla JS composables, configures Vite projects, and sets up routing and state management using JavaScript only — no TypeScript. Generates JSDoc-typed code with @typedef, @param, and @returns annotations for full type coverage without a TS compiler. Use when building Vue 3 applications with JavaScript only (no TypeScript), when projects require JSDoc-based type hints, when migrating from Vue 2 Options API to Composition API in JS, or when teams prefer vanilla JavaScript, .mjs modules, or need quick prototypes without TypeScript setup.

license

MIT

metadata.author

https://github.com/Jeffallan

metadata.company

https://synergetic.solutions

metadata.version

1.1.0

metadata.domain

frontend

metadata.triggers

Vue JavaScript, Vue without TypeScript, Vue JSDoc, Vue JS only, Vue vanilla JavaScript, .mjs Vue, Vue no TS

metadata.role

specialist

metadata.scope

implementation

metadata.output-format

code

metadata.related-skills

vue-expert, javascript-pro

<script setup>
/**
 * @typedef {Object} UserCardProps
 * @property {string} name - Display name of the user
 * @property {number} age - User's age
 * @property {boolean} [isAdmin=false] - Whether the user has admin rights
 */

/** @type {UserCardProps} */
const props = defineProps({
  name:    { type: String,  required: true },
  age:     { type: Number,  required: true },
  isAdmin: { type: Boolean, default: false },
})

/**
 * @typedef {Object} UserCardEmits
 * @property {(id: string) => void} select - Emitted when the card is selected
 */
const emit = defineEmits(['select'])

/** @param {string} id */
function handleSelect(id) {
  emit('select', id)
}
</script>

<template>
  <div @click="handleSelect(props.name)">
    {{ props.name }} ({{ props.age }})
  </div>
</template>

// composables/useCounter.mjs
import { ref, computed } from 'vue'

/**
 * @typedef {Object} CounterState
 * @property {import('vue').Ref<number>} count - Reactive count value
 * @property {import('vue').ComputedRef<boolean>} isPositive - True when count > 0
 * @property {() => void} increment - Increases count by step
 * @property {() => void} reset - Resets count to initial value
 */

/**
 * Composable for a simple counter with configurable step.
 * @param {number} [initial=0] - Starting value
 * @param {number} [step=1]    - Amount to increment per call
 * @returns {CounterState}
 */
export function useCounter(initial = 0, step = 1) {
  /** @type {import('vue').Ref<number>} */
  const count = ref(initial)

  const isPositive = computed(() => count.value > 0)

  function increment() {
    count.value += step
  }

  function reset() {
    count.value = initial
  }

  return { count, isPositive, increment, reset }
}

// types/user.mjs

/**
 * @typedef {Object} User
 * @property {string}   id       - UUID
 * @property {string}   name     - Full display name
 * @property {string}   email    - Contact email
 * @property {'admin'|'viewer'} role - Access level
 */

// Import in other files with:
// /** @type {import('./types/user.mjs').User} */

© Jeffallan, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 5 other files (references) in skills/vue-expert-js of Jeffallan/claude-skills.

• SKILL.md
• references/component-architecture.md
• references/composables-patterns.md
• references/jsdoc-typing.md
• references/state-management.md
• references/testing-patterns.md

Open the folder on GitHubat commit 1be15d8