# Flutter State > Implement state management in Flutter using BLoC, Riverpod, or Provider patterns. Use when designing data flow, managing async state, or implementing reactive architectures. Use when this capability is needed. - Skill: `tomevault-io/flutter-state` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/flutter-state` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/flutter-state/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/flutter-state --- # Flutter State Management Activate this skill when implementing state management in Flutter applications. ## When to Use - Choosing a state management approach for a feature - Implementing BLoC pattern with events and states - Setting up Riverpod providers and notifiers - Managing async state (loading, error, data) - Implementing optimistic updates - Debugging state-related issues ## BLoC Pattern - Events in, states out (unidirectional data flow) - Use sealed classes for events and states (Dart 3) - Implement proper initial state - Handle errors within the bloc, emit error states - Use BlocObserver for debugging ## Riverpod Pattern - Use appropriate provider type (Provider, StateNotifier, AsyncNotifier) - Scope providers to minimize rebuilds - Use ref.watch for reactive dependencies - Implement proper disposal with autoDispose - Use family for parameterized providers ## Rules - Never mix state management approaches in one feature - Keep state classes immutable (use freezed or sealed) - Handle all async states explicitly (loading, error, data) - Dispose resources properly to prevent memory leaks - Test state transitions in isolation from UI - Minimize widget rebuilds with selective listening --- > Source: [ihatesea69/kiro-kit](https://github.com/ihatesea69/kiro-kit) — distributed by [TomeVault](https://tomevault.io).