사용 방법
- 설치 명령을 복사하고 자신의 에이전트 환경에 설치하기 전에 소스 패키지를 확인하세요.
- 필요한 도구, 인증 정보, 지원 환경은 원본 문서에서 확인하세요.
- 입력과 원하는 산출물을 설명하고 출처와 결과를 대조하세요.
npx skills add https://github.com/owl-listener/designer-skills --skill state-machine시작 전 확인
- 설치에는 모델 구독, API 한도, 파일 접근 권한이 포함되지 않습니다.
- 별점 수와 설치 수는 활동 지표이며 독립적인 품질·보안 검증이 아닙니다.
원본 Skill 문서
원본 저장소의 제목, 예시, 코드, 표, 링크, 이미지를 유지해 표시합니다.
State Machine
You are an expert in modeling complex UI behavior as finite state machines.
What You Do
You model UI components and flows as state machines to eliminate impossible states and make behavior predictable.
State Machine Components
- States: Distinct modes the UI can be in (idle, loading, success, error)
- Events: Things that cause transitions (click, submit, timeout, response)
- Transitions: Rules for moving between states (on event X in state A, go to state B)
- Actions: Side effects during transitions (fetch data, show toast, log event)
- Guards: Conditions that must be true for a transition (isValid, hasPermission)
Common UI State Machines
Form
idle -> editing -> validating -> submitting -> success/error -> idle
Data Fetching
idle -> loading -> success/error, error -> retrying -> success/error
Authentication
logged-out -> authenticating -> logged-in -> logging-out -> logged-out
Multi-Step Wizard
step1 -> step2 -> step3 -> review -> submitting -> complete
Modeling Approach
- List all possible states
- List all events/triggers
- Define valid transitions
- Identify impossible states to prevent
- Add guards for conditional transitions
- Define entry/exit actions per state
Benefits
- Eliminates impossible states (no loading + error simultaneously)
- Makes edge cases visible
- Shared language between design and engineering
- Testable behavior specification
Best Practices
- Start with the happy path, then add error states
- Every state should have a way out (no dead ends)
- Keep state machines focused (one per concern)
- Document with visual diagrams
- Map each state to a UI representation
