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 skills add roedyrustam/vibes-plug --skill flutter-dart-expertgit clone --depth 1 https://github.com/roedyrustam/vibes-plugWrote 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/roedyrustam/vibes-plug/flutter-dart-expert)<a href="https://agentmods.dev/skills/roedyrustam/vibes-plug/flutter-dart-expert"><img src="https://agentmods.dev/badge/skills/roedyrustam/vibes-plug/flutter-dart-expert/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/roedyrustam/vibes-plug/flutter-dart-expert"><img src="https://agentmods.dev/badge/skills/roedyrustam/vibes-plug/flutter-dart-expert.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00077 | $0.03069 |
| Opus 5.5 | $0.00031 | $0.01228 |
| Sonnet 5.5 | $0.00015 | $0.00614 |
| Haiku 4.5 | $0.00008 | $0.00307 |
Grade A, and why
flutter-dart-expert 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 320 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Flutter & Dart Expert (Flutter 3.27 / Dart 3.7 Edition)
English
Orchestration & Integration
Connects with: brainstorming, zero-to-prod-orchestrator, design-system-architect, ui-ux-pro-max, visual-ui-auditor, anti-slop, database-orm-expert, authentication-identity-expert, firebase-security-expert, ci-cd-devops-architect, e2e-testing-expert, apple-ecosystem-expert, session-memory-manager.
Description
Expert guide for building production-grade cross-platform applications using Flutter 3.27+ and Dart 3.7+. Covers Material 3 adaptive theming, Riverpod 3 state management, go_router declarative navigation, Impeller rendering engine, platform channels, custom render objects, and Firebase/Supabase backend integration for iOS, Android, Web, macOS, Windows, and Linux targets.
Trigger Conditions
- Building a new Flutter/Dart cross-platform application (mobile, web, desktop).
- Using Riverpod 3 for state management with code generation.
- Implementing Material 3 adaptive design with
ColorScheme.fromSeed. - Setting up go_router declarative navigation with typed routes.
- Writing platform channels (MethodChannel/EventChannel) or FFI.
- Integrating Flutter with Firebase, Supabase, or custom REST/GraphQL APIs.
- Optimizing rendering performance with Impeller (default engine).
- Building Flutter plugins or packages for pub.dev.
What's New in 2026
Dart 3.7 — Language Improvements
- Static Metaprogramming (Macros): Compile-time code generation for JSON serialization, data classes, and ORM models without build_runner.
- Pattern Matching Enhancements: Exhaustive switch expressions with sealed class hierarchies.
- Extension Types (Stable): Zero-cost wrappers for type safety without runtime overhead.
- Enhanced Enums: Enum members with fields, methods, and interface implementations.
Flutter 3.27 — Framework Updates
- Impeller (Default): Hardware-accelerated rendering engine — eliminates shader compilation jank on iOS, Android, and desktop.
- Material 3 Complete: Full M3 component set with adaptive layouts for mobile/tablet/desktop.
- Platform Views v2: Improved hybrid composition for embedding native views (maps, ads, WebView).
- DevTools 2026: Enhanced performance profiling, widget inspector, and memory analysis.
- WebAssembly (Stable): Flutter web compiled to Wasm for near-native performance.
- Dart-only Packages: Build backend APIs with
dart_frogorshelfusing the same Dart codebase.
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.
- 2d ago Changed 07b79c990d78
- 3d ago Changed 8b03f7f76881
- 4d ago First seen · 320 lines · 77 tokens per session scan A cbd2d7b51e6a
flutter-dart-expert is a skill published in the GitHub repository roedyrustam/vibes-plug (113 stars, last pushed today), licensed MIT. It adds 77 tokens to every session and 3,069 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-10-20.
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