stimulus-coder

Use when creating or refactoring Stimulus controllers. Applies Hotwire conventions, controller design patterns, targets/values usage, action handling, and JavaScript best practices.

설치로 이동

저장소: majesticlabs-dev/majestic-marketplace
최근 소스 활동: 2026년 3월 14일 02:16
감지된 SKILL.md 언어: 영어
스타: 47
포크: 11

설치 방법

기본적으로 소스를 먼저 확인하는 Prompt가 선택됩니다. 직접 명령으로 전환하거나 로컬 사본을 다운로드할 수도 있습니다.

Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.

직접 명령은 검토 Prompt를 거치지 않습니다. 실행하기 전에 소스를 확인하세요.

npx skills add https://github.com/majesticlabs-dev/majestic-marketplace --skill stimulus-coder

명령은 한 줄로 유지됩니다. 복사하기 전에 가로로 스크롤해 전체 내용을 확인하세요.

로컬 사본을 원하시나요? SkillsMP에서 현재 제공할 수 있는 파일을 다운로드하세요.

소스 파일 검토

설치 여부를 결정하기 전에 SKILL.md와 SkillsMP에 표시된 보조 파일을 읽어 보세요.

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3 개 파일

SKILL.md

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export default class extends Controller {
  static values = {
    delay: { type: Number, default: 300 },
    event: { type: String, default: "input" }
  }

  connect() {
    this.element.addEventListener(this.eventValue, this.submit.bind(this))
  }

  submit() {
    clearTimeout(this.timeout)
    this.timeout = setTimeout(() => this.element.requestSubmit(), this.delayValue)
  }
}

<%= form_with data: { controller: "auto-submit", auto_submit_delay_value: 500 } %>

<div data-controller="toggle clipboard" data-toggle-open-value="false">
  <button data-action="toggle#toggle">Show</button>
  <div data-toggle-target="content" class="hidden">
    <code data-clipboard-target="source">secret-code</code>
    <button data-action="clipboard#copy">Copy</button>
  </div>
</div>

export default class extends Controller {
  static targets = ["tab", "panel"]
  static values = { index: { type: Number, default: 0 } }

  select(event) { this.indexValue = this.tabTargets.indexOf(event.currentTarget) }

  indexValueChanged() {
    this.panelTargets.forEach((panel, i) => panel.classList.toggle("hidden", i !== this.indexValue))
    this.tabTargets.forEach((tab, i) => tab.setAttribute("aria-selected", i === this.indexValue))
  }
}

<button data-action="click->toggle#toggle">Toggle</button>
<input data-action="input->search#update focus->search#expand">
<button data-action="modal#open" data-modal-id-param="confirm-dialog">Open</button>
<input data-action="keydown.enter->form#submit keydown.escape->form#cancel">

open(event) {
  const modalId = event.params.id
  document.getElementById(modalId)?.showModal()
}

export default class extends Controller {
  static targets = ["menu"]
  static values = { open: Boolean }

  toggle() { this.openValue = !this.openValue }

  close(event) {
    if (!this.element.contains(event.target)) this.openValue = false
  }

  openValueChanged() {
    this.menuTarget.classList.toggle("hidden", !this.openValue)
    if (this.openValue) document.addEventListener("click", this.close.bind(this), { once: true })
  }
}

export default class extends Controller {
  static targets = ["source", "button"]
  static values = { successMessage: { type: String, default: "Copied!" } }

  async copy() {
    const text = this.sourceTarget.value || this.sourceTarget.textContent
    await navigator.clipboard.writeText(text)
    this.showSuccess()
  }

  showSuccess() {
    const original = this.buttonTarget.textContent
    this.buttonTarget.textContent = this.successMessageValue
    setTimeout(() => this.buttonTarget.textContent = original, 2000)
  }
}

export default class extends Controller {
  connect() {
    document.addEventListener("turbo:before-visit", this.dismiss.bind(this))
    this.timeout = setTimeout(() => this.dismiss(), 5000)
  }

  disconnect() { clearTimeout(this.timeout) }
  dismiss() { this.element.remove() }
}

// Bad: hardcoded
export default class extends Controller {
  toggle() { this.element.classList.toggle("hidden") }
}

// Good: configurable
export default class extends Controller {
  static classes = ["toggle"]
  toggle() { this.element.classList.toggle(this.toggleClass) }
}

// Mixin pattern
const Sortable = (controller) => {
  const original = controller.prototype.connect
  controller.prototype.connect = function() {
    if (original) original.call(this)
    this.sortable = new Sortable(this.element, this.sortableOptions)
  }
}

// Read arbitrary data-chart-* attributes
get chartOptions() {
  return Object.entries(this.element.dataset)
    .filter(([key]) => key.startsWith("chart"))
    .reduce((opts, [key, val]) => {
      opts[key.replace("chart", "").toLowerCase()] = val
      return opts
    }, {})
}

Pattern	Coupling	Direction	Use When
Custom events	Loose	Broadcast (1→many)	Sender doesn't know receivers
Outlets	Structured	Direct (1→1, 1→few)	Known relationships in layout
Callbacks	Read-only	Request/response	Sharing state without triggering actions

// Sender
this.dispatch("submitted", { detail: { id: this.idValue }, bubbles: true })

// Receiver (in HTML)
// data-action="sender:submitted->receiver#handleSubmit"

export default class extends Controller {
  static outlets = ["result"]

  search() {
    const results = this.performSearch()
    this.resultOutlets.forEach(outlet => outlet.update(results))
  }

  resultOutletConnected(outlet) { /* setup */ }
  resultOutletDisconnected(outlet) { /* cleanup */ }
}

// Good: plugin init in connect
connect() {
  this.chart = new Chart(this.canvasTarget, this.chartConfig)
}

disconnect() {
  this.chart.destroy()
  this.chart = null
}

connect() {
  document.addEventListener("turbo:before-cache", this.teardown.bind(this))
  this.slider = new Swiper(this.element, this.config)
}

teardown() {
  this.slider?.destroy()
  // Restore original DOM state before caching
}

disconnect() {
  this.teardown()
}

connect() {
  this.boundResize = this.resize.bind(this)
  window.addEventListener("resize", this.boundResize, { passive: true })
}

disconnect() {
  window.removeEventListener("resize", this.boundResize)
}

<%# Good: Stimulus manages lifecycle %>
<div data-controller="search"
     data-action="resize@window->search#layout keydown.escape@window->search#close">

<%# Bad: manual addEventListener in connect() %>

import { Controller } from "@hotwired/stimulus"

export default class ApplicationController extends Controller {
  handleError(error, context = {}) {
    console.error(`[${this.identifier}]`, error, context)
    // Sentry.captureException(error, { extra: context })
  }
}

import ApplicationController from "./application_controller"

export default class extends ApplicationController {
  async save() {
    try {
      await this.persist()
    } catch (error) {
      this.handleError(error, { action: "save", id: this.idValue })
    }
  }
}

Anti-Pattern	Problem	Solution
Creating DOM extensively	Fighting Stimulus philosophy	Let server render HTML
Storing state in JS	State lost on navigation	Use Values in HTML
Over-specific controllers	Not reusable	Design generic behaviors
Manual querySelector	Fragile, bypasses Stimulus	Use targets
Inline event handlers	Unmaintainable	Use data-action
Overloading connect()	Bloated, mixes concerns	Values for state, data-action for events
Tight controller coupling	Fragile, hard to test	Custom events or outlets
Missing disconnect cleanup	Memory leaks, duplicate listeners	Always pair connect/disconnect
Unbound event references	Can't removeEventListener	Store `.bind()` result

name	stimulus-coder
description	Use when creating or refactoring Stimulus controllers. Applies Hotwire conventions, controller design patterns, targets/values usage, action handling, and JavaScript best practices.
allowed-tools	Read Write Edit Grep Glob Bash

name	stimulus-coder
description	Use when creating or refactoring Stimulus controllers. Applies Hotwire conventions, controller design patterns, targets/values usage, action handling, and JavaScript best practices.
allowed-tools	Read Write Edit Grep Glob Bash

stimulus-coder

설치 방법

소스 파일 검토

Stimulus Coder

Core Concepts

Controller Design Principles

Keep Controllers Small and Reusable

Stimulus Coder

Core Concepts

Controller Design Principles

Keep Controllers Small and Reusable

Use Data Attributes for Configuration

Compose Multiple Controllers

Targets and Values

Targets for Element References

Action Handling

Action Parameters

Common Controller Patterns

Dropdown Controller

Clipboard Controller

Turbo Integration

Architecture Patterns

Make Controllers Configurable

Mixins Over Deep Inheritance

Targetless Controllers

Namespaced Attributes

Controller Communication

Custom Events (Preferred Default)

Outlets (Structured Relationships)

Lifecycle Best Practices

Don't Overuse `connect()`

Always Pair connect/disconnect

Turbo Cache Teardown

Event Listener Hygiene

Store Bound References

Prefer Declarative Actions

Application Controller

Anti-Patterns

Output Format

stimulus-coder

소스 정보

설치 방법

소스 파일 검토

이 저장소의 다른 Skills

이 저장소의 다른 Skills

Stimulus Coder

Core Concepts

Controller Design Principles

Keep Controllers Small and Reusable

Stimulus Coder

Core Concepts

Controller Design Principles

Keep Controllers Small and Reusable

Use Data Attributes for Configuration

Compose Multiple Controllers

Targets and Values

Targets for Element References

Action Handling

Action Parameters

Common Controller Patterns

Dropdown Controller

Clipboard Controller

Turbo Integration

Architecture Patterns

Make Controllers Configurable

Mixins Over Deep Inheritance

Targetless Controllers

Namespaced Attributes

Controller Communication

Custom Events (Preferred Default)

Outlets (Structured Relationships)

Lifecycle Best Practices

Don't Overuse connect()

Always Pair connect/disconnect

Turbo Cache Teardown

Event Listener Hygiene

Store Bound References

Prefer Declarative Actions

Application Controller

Anti-Patterns

Output Format

Don't Overuse `connect()`