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From sage
Flutter patterns — widget architecture, state management, Impeller renderer, platform-adaptive design
npx claudepluginhub xoai/sage --plugin sageHow this skill is triggered — by the user, by Claude, or both
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/sage:flutterThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
**Layer 2 — Framework Pack**
Provides Flutter patterns for widget architecture, state management, Impeller renderer, and platform-adaptive design, avoiding common mistakes.
Provides Flutter/Dart guidance on architecture (BLoC, Riverpod), state management, widgets, navigation (GoRouter), data (Dio, Hive), performance, and testing for cross-platform mobile apps.
Guides Flutter cross-platform app development: widget patterns, Riverpod/Bloc state management, GoRouter navigation, const/performance optimization, responsive layouts, testing, DevTools.
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Layer 2 — Framework Pack
Flutter patterns for modern development (3.x+). Widget architecture, state management, Impeller renderer, platform-adaptive design, and the common mistakes agents make from outdated tutorials.
Flutter's "everything is a widget" model is simultaneously its greatest strength
and the main source of agent mistakes. Agents build monolithic widget trees with
thousands of lines, misuse setState for everything, nest widgets 15 levels
deep, and ignore the widget lifecycle. This pack establishes clean widget
architecture, proper state management selection, and Impeller-era performance
patterns.
| Type | Files | Coverage |
|---|---|---|
| Patterns | 7 | Widget architecture, state management, async/data, navigation, platform-adaptive, testing, performance |
| Anti-patterns | 5 | God widgets, setState everywhere, ignoring dispose, hardcoded dimensions, unnecessary packages |
| Constitution | 1 | 5 Flutter-specific principles |
| Gate | 1 | Flutter pattern compliance check |