All 94 skillsLanguages5 of 12
stryx:flutter
When writing, reviewing or testing Flutter or Dart app code.
/stryx:flutterInside its piece: 22 specks, one for each file on its shelf. Its eleven group-mates glow on the open book behind it. The light splits toward green, the band of Languages.
In numbers
counted 2026-10-12 in the installed set- 15reference files
- 5helper scripts
- 22files in the skill
- 394KB on disk
- 13chapters
- 1agent works by this book
Use it when
in the skill’s own wordsWhen writing, changing, reviewing or testing Flutter or Dart app code
- a pubspec.yaml or lib/ folder
- widgets and layouts
- Material 3 theming
- responsive or adaptive UI
- choosing or using state management (Riverpod 3, BLoC or Cubit 9, Provider, setState)
- GoRouter routes
- redirects and deep links
- clean architecture
- repositories and get_it
- freezed or build_runner code generation
- animations (implicit, explicit, Hero, flutter_animate, Rive)
- platform channels or Pigeon
- app lifecycle and state restoration
- widget
- unit
- golden (Alchemist) or integration tests
- Flutter errors (RenderFlex overflow, setState after dispose, unbounded height)
- DevTools
- jank
- rebuilds
- slivers
- Impeller
- a mobile security audit (OWASP Mobile Top 10, secure storage, certificate pinning)
Not for
another skill does it- VS Code launch configs→ stryx:vscode
- Release builds, signing, stores and CI→ stryx:devops
- The general debugging method→ stryx:debug
- Visual direction→ stryx:design
- Web and Electron security→ stryx:security
On its shelf
22 files, 394 KB- references/15
- scripts/5
- SKILL.md1
- evals/1
Inside the book
13 chapters, by title only- The protocol
- Verification gates
- The rules
- Project structure
- State management
- Navigation
- Widget composition
- Testing
- Performance
- Debugging
- Security
- Flutter code review
- Common packages
Its helper
1 agent works by this book- stryx:flutter-agentWhen a Flutter feature, screen or widget should be built off to the side.
Works with
the skills it names most- stryx:debug→Something is broken: a bug, an error, a crash, a failing test or wrong data.
- stryx:design→When making anything you see: a screen, website, dashboard, logo, icon set, slides or charts.
- stryx:devops→When work must be committed, pushed, made a pull request, released or packaged.
- stryx:ai-power→When you are not sure which skill fits, or you say "load aipower": it is the map of all skills.
- stryx:review→When code or a pull request should be checked before commit or merge.
- stryx:security→When code touches logins, permissions, secrets or encryption, or you ask "is this secure".
Claude loads it by itself when the moment comes; by hand, type the line at the top. It comes with the whole set: Installs all 94 skills, 32 agents and the brain program as one set. The skill’s own text is private source and is not shown here.