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state-machine

Model UI components as finite state machines with states, events, and transitions.

38|5|Updated Feb 24, 2026
Search Tags:#workflow#validation#ui-design#behavior#transitions#state-machine
One-click install
npx skills add https://github.com/launchapp-dev/animus-cli --skill state-machine-launchapp-dev
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: state-machine
Source: https://github.com/launchapp-dev/animus-cli/tree/main/.claude/skills/state-machine
Command: npx skills add https://github.com/launchapp-dev/animus-cli --skill state-machine-launchapp-dev

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

UI behavior often becomes unpredictable as interfaces handle many states and transitions. This Skill provides a disciplined approach to model UI logic as finite state machines, preventing impossible states and easing maintenance.

Core Features & Use Cases

  • Clear state definitions: represent UI modes (idle, loading, success, error) and transitions.
  • Event-driven flows: map user actions to deterministic state changes and side effects.
  • Guarded transitions and actions: enforce conditions and trigger side effects such as data fetches or UI feedback.

Quick Start

Model a UI component as a finite state machine with clearly defined states, events, transitions, and actions.

Frequently Asked Questions about state-machine

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I model UI behavior to prevent impossible states?▼

Guarded transitions enforce conditions before state changes occur, preventing invalid shifts. Actions trigger side effects like data fetches or UI feedback during these transitions, ensuring event-driven flows remain deterministic and side effects execute only when specific conditions are met.

When should I use finite state machines for UI logic instead of standard state management?▼

Finite state machines apply to UI components and flows across forms, data fetches, authentication, and multi-step wizards. They specify states, events, transitions, actions, and guards to enable predictable, testable UI logic for these specific use cases.

How do guarded transitions and actions work in a state machine?▼

Guarded transitions enforce conditions before state changes occur, preventing invalid shifts. Actions trigger side effects like data fetches or UI feedback during these transitions, ensuring event-driven flows remain deterministic and side effects execute only when specific conditions are met.

Can I use finite state machines for multi-step wizard and authentication flows?▼

Finite state machines apply to UI components and flows across forms, data fetches, authentication, and multi-step wizards. They specify states, events, transitions, actions, and guards to enable predictable, testable UI logic for these specific use cases.

What is the best way to represent UI modes like loading, success, and error?▼

The best way to represent UI modes like loading, success, and error is through clear state definitions in a finite state machine. Mapping user actions to deterministic state changes ensures predictable transitions between these defined modes.

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