Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/minimax-ai/skills/flutter-devnpx skills add MiniMax-AI/skills --skill flutter-devgit clone --depth 1 https://github.com/MiniMax-AI/skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/minimax-ai/skills/flutter-dev)<a href="https://agentmods.dev/skills/minimax-ai/skills/flutter-dev"><img src="https://agentmods.dev/badge/skills/minimax-ai/skills/flutter-dev.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00083 | $0.01178 |
| Opus 5 | $0.00042 | $0.00589 |
| Sonnet 5 | $0.00017 | $0.00236 |
| Haiku 4.5 | $0.00008 | $0.00118 |
Grade A, and why
flutter-dev scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
1 near-identical copy found in the catalogue:
- flutter-dev — 95% identical, 1 lines differ
How it starts
The opening of the file, as written. The whole thing — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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
Widget Patterns
| 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
Widget Optimization
- Use
constconstructors wherever possible - Extract static widgets to separate const classes
- Use
Keyfor list items (ValueKey, ObjectKey) - Prefer
ConsumerWidgetoverStatefulWidgetfor 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
RepaintBoundaryfor complex animations - Offload heavy work with
compute()
What ships with it
12 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- references/animations.md 13 KB
- references/bloc-state.md 6.6 KB
- references/forms.md 17 KB
- references/gorouter-navigation.md 6.1 KB
- references/localization.md 12 KB
- references/networking.md 14 KB
- references/performance.md 6.5 KB
- references/platform-specific.md 11 KB
- references/project-structure.md 6.6 KB
- references/riverpod-state.md 5.3 KB
- references/testing.md 8.4 KB
- references/widget-patterns.md 5.1 KB
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 4d ago First seen · 130 lines · 83 tokens per session scan A b0e5eb337c18
flutter-dev is a skill published in the GitHub repository MiniMax-AI/skills (13,505 stars, last pushed 4mo ago), licensed MIT. It adds 83 tokens to every session and 1,178 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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