Is flutter-dev safe to install?

SaferSkills independently audited flutter-dev (Agent Skill) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.

CategoryWeightCategory scoreContribution

Securityprompt, exec, net, exfil, eval

35%

100

35.0 pts

Supply chainhash, typosquat, maintainer, lockfile

20%

100

20.0 pts

Maintenancestaleness, pinning, CI

15%

100

15.0 pts

TransparencySKILL.md, perms, README

15%

100

15.0 pts

Communityinstalls, verify, response

15%

100

15.0 pts

Findings & checks · 0 flagged

Securityscore 100 · 0 findings

✓—All security checks passedNo findings in this category for the latest scan.pass

Supply chainscore 100 · 0 findings

✓—All supply chain checks passedNo findings in this category for the latest scan.pass

Maintenancescore 100 · 0 findings

✓—All maintenance checks passedNo findings in this category for the latest scan.pass

Transparencyscore 100 · 0 findings

✓—All transparency checks passedNo findings in this category for the latest scan.pass

Communityscore 100 · 0 findings

✓—All community checks passedNo findings in this category for the latest scan.pass

The primary manifest — the file an agent reads to learn what this artifact does.

skills/flutter-dev/SKILL.md · 1 file

skills/flutter-dev/SKILL.md5.0 KB · Markdown

name: flutter-dev

description: |

Flutter cross-platform development guide covering widget patterns, Riverpod/Bloc state management, GoRouter navigation, performance optimization, and platform-specific implementations. Includes const optimization, responsive layouts, testing strategies, and DevTools profiling.

Use when: building Flutter apps, implementing state management (Riverpod/Bloc), setting up GoRouter navigation, creating custom widgets, optimizing performance, writing widget tests, cross-platform development.

license: MIT

metadata:

version: "1.0.0"

category: mobile

sources:

- Flutter Documentation

- Riverpod Documentation

- Bloc Library Documentation

Flutter Development Guide

A practical guide for building cross-platform applications with Flutter 3 and Dart. Focuses on proven patterns, state management, and performance optimization.

Quick Reference

Purpose	Component
State management (simple)	`StateProvider` + `ConsumerWidget`
State management (complex)	`NotifierProvider` / `Bloc`
Async data	`FutureProvider` / `AsyncNotifierProvider`
Real-time streams	`StreamProvider`
Navigation	`GoRouter` + `context.go/push`
Responsive layout	`LayoutBuilder` + breakpoints
List display	`ListView.builder`
Complex scrolling	`CustomScrollView` + Slivers
Hooks	`HookWidget` + `useState/useEffect`
Forms	`Form` + `TextFormField` + validation

Performance Patterns

Purpose	Solution
Prevent rebuilds	`const` constructors
Selective updates	`ref.watch(provider.select(...))`
Isolate repaints	`RepaintBoundary`
Lazy lists	`ListView.builder`
Heavy computation	`compute()` isolate
Image caching	`cached_network_image`

Core Principles

Use const constructors wherever possible
Extract static widgets to separate const classes
Use Key for list items (ValueKey, ObjectKey)
Prefer ConsumerWidget over StatefulWidget for state

State Management

Riverpod for dependency injection and simple state
Bloc/Cubit for event-driven workflows and complex logic
Never mutate state directly (create new instances)
Use select() to minimize rebuilds

Layout

8pt spacing increments (8, 16, 24, 32, 48)
Responsive breakpoints: mobile (<650), tablet (650-1100), desktop (>1100)
Support all screen sizes with flexible layouts
Follow Material 3 / Cupertino design guidelines

Performance

Profile with DevTools before optimizing
Target <16ms frame time for 60fps
Use RepaintBoundary for complex animations
Offload heavy work with compute()

Checklist

[ ] const constructors on all static widgets
[ ] Proper Key on list items
[ ] ConsumerWidget for state-dependent widgets
[ ] No widget building inside build() method
[ ] Extract reusable widgets to separate files

State Management

[ ] Immutable state objects
[ ] select() for granular rebuilds
[ ] Proper provider scoping
[ ] Dispose controllers and subscriptions
[ ] Handle loading/error states

[ ] GoRouter with typed routes
[ ] Auth guards via redirect
[ ] Deep linking support
[ ] State preservation across routes

Performance

[ ] Profile mode testing (flutter run --profile)
[ ] <16ms frame rendering time
[ ] No unnecessary rebuilds (DevTools check)
[ ] Images cached and resized
[ ] Heavy computation in isolates

Testing

[ ] Widget tests for UI components
[ ] Unit tests for business logic
[ ] Integration tests for user flows
[ ] Bloc tests with blocTest()

References

Topic	Reference
Widget patterns, const optimization, responsive layout	Widget Patterns
Riverpod providers, notifiers, async state	Riverpod State Management
Bloc, Cubit, event-driven state	Bloc State Management
GoRouter setup, routes, deep linking	GoRouter Navigation
Feature-based structure, dependencies	Project Structure
Profiling, const optimization, DevTools	Performance Optimization
Widget tests, integration tests, mocking	Testing Strategies
iOS/Android/Web specific implementations	Platform Integration
Implicit/explicit animations, Hero, transitions	Animations
Dio, interceptors, error handling, caching	Networking
Form validation, FormField, input formatters	Forms
i18n, flutter_localizations, intl	Localization

Flutter, Dart, Material Design, and Cupertino are trademarks of Google LLC and Apple Inc. respectively. Riverpod, Bloc, and GoRouter are open-source packages by their respective maintainers.

flutter-dev— agent skill

Is flutter-dev safe to install?

Flutter Development Guide

Quick Reference

Widget Patterns

Performance Patterns

Core Principles

Widget Optimization

State Management

Layout

Performance

Checklist

Widget Best Practices

State Management

Navigation

Performance

Testing

References

Audit the pieces. Scan the whole. Decide.