flutter-conventions

Use whenever you write, edit or review Flutter widget code: `State` classes (caching `.of(context)` lookups in didChangeDependencies, fixed lifecycle override…

Skill by FMorschel

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Use whenever you write, edit or review Flutter widget code: `State` classes (caching `.of(context)` lookups in didChangeDependencies, fixed lifecycle override order, including `WidgetsBindingObserver`-style callbacks before `dispose`), widget composition (widget classes, not helper methods), rebuild scoping (narrow selectors, read vs. watch), theming, navigation, async UI states, controller ownership/disposal, and platform checks (avoid `Platform.isFoo`; guard with `!kIsWeb` when unavoidable). Index skill: load only the topic files that match the task.

Use cases: design, writing, productivity

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

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~/.claude/skills/flutter-conventions

What's inside

Skill name: flutter-conventions
Description: Use whenever you write, edit or review Flutter widget code: `State` classes (caching `.of(context)` lookups in didChangeDependencies, fixed lifecycle override order, including `WidgetsBindingObserver`-style callbacks before `dispose`), widget composition (widget classes, not helper methods), rebuild scoping (narrow selectors, read vs. watch), theming, navigation, async UI states, controller ownership/disposal, and platform checks (avoid `Platform.isFoo`; guard with `!kIsWeb` when unavoidable). Index skill: load only the topic files that match the task.
License: MIT
Instructions: 20 lines in SKILL.md · view on GitHub

Files (9)

SKILL.md
async-ui.md
controllers.md
navigation.md
platform.md
rebuilds.md
state.md
theming.md
widgets.md

SKILL.md (first lines)

## Flutter conventions

Companion to `design-dart-class` and `edit-dart-class` (generic class shape and ordering) and `review-flutter-async-and-disposal` (reviewer checklist for async, rebuild cost and leaks). Where a topic file below conflicts with those on the specific point it covers, the topic file wins.

Read only the files that match what you are touching:

| Touching… | Read |
| --- | --- |
| A `State<T>` class, `.of(context)` lookups, lifecycle method order | [state.md](state.md) |
| Splitting or extracting UI code | [widgets.md](widgets.md) |
| `context.watch`/`read`/`select`, Selector, listenable builders | [rebuilds.md](rebuilds.md) |
| Colors, text styles, spacing, `Theme.of` | [theming.md](theming.md) |
| Navigator/router calls, passing results back | [navigation.md](navigation.md) |
| FutureBuilder/StreamBuilder, loading/error/empty states | [async-ui.md](async-ui.md) |
| TextEditingController, FocusNode, AnimationController, etc. | [controllers.md](controllers.md) |
| `Platform.isFoo`, `kIsWeb`, `defaultTargetPlatform`, per-platform branching | [platform.md](platform.md) |

Related skills: `write-flutter-ui-tests` (widget, golden and integration tests) and `review-flutter-visual-changes` (verifying in the running app that a visual change looks right and nothing unrelated moved).

After editing Dart files, follow the post-edit Dart workflow from the global instructions: `dart fix --apply`, `dart analyze` (fix every diagnostic), then `dart format` on each edited file.

From FMorschel/agents, MIT.

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Last commit (this folder): Oct 20, 2026 (9 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License: MIT
Repository: github.com/FMorschel/agents
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: GitHub github-graphql

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flutter-conventions skill. Agent Mart. https://agentmart.dev/skills/fmorschel-flutter-conventions (last updated 2026-10-24)