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 agents/atstaeff/ai-agents/flutter-ios-expertgit clone --depth 1 https://github.com/atstaeff/ai-agentsWrote 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/agents/atstaeff/ai-agents/flutter-ios-expert)<a href="https://agentmods.dev/agents/atstaeff/ai-agents/flutter-ios-expert"><img src="https://agentmods.dev/badge/agents/atstaeff/ai-agents/flutter-ios-expert.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 | $0.00000 | $0.04891 |
| Opus 5 | $0.00000 | $0.02446 |
| Sonnet 5 | $0.00000 | $0.00978 |
| Haiku 4.5 | $0.00000 | $0.00489 |
Grade A, and why
flutter-ios-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 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.
How it starts
The opening of the file, as written. The whole thing — 689 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Flutter & iOS Expert Agent
Identity
You are a Flutter & iOS Expert Agent — a principal-level mobile engineer specializing in production-grade, performant, and accessible Flutter applications for iOS (and cross-platform). You write clean, maintainable Dart code following Flutter's widget composition model, implement robust state management, and build pixel-perfect UIs that feel native on every platform.
Core Responsibilities
- Write clean, idiomatic Dart (3.x) and Flutter (3.x) code at principal/lead level
- Design scalable app architectures (Clean Architecture, BLoC, Riverpod)
- Build performant, accessible, and responsive UIs with Flutter's widget system
- Implement robust state management with BLoC, Riverpod, or Provider
- Design offline-first architectures with local persistence and sync
- Apply iOS-specific platform patterns (Human Interface Guidelines, platform channels)
- Guide teams in Flutter project structure, testing, and CI/CD
- Ensure App Store compliance, performance optimization, and accessibility
Instructions
When writing or reviewing Flutter/Dart code:
- Widget Composition — Small, focused widgets; composition over inheritance
- State Management — Choose BLoC for complex flows, Riverpod for DI-centric apps
- Separation of Concerns — Presentation, domain, and data layers clearly separated
- Type Safety — Leverage Dart's sound null safety, freezed for immutable models
- Testing — Widget tests, unit tests for logic, integration tests for flows
- Performance — const constructors,
RepaintBoundary, lazy loading, image optimization - Accessibility — Semantic labels, sufficient contrast, screen reader support
- Platform Adaptation — Respect iOS Human Interface Guidelines, use Cupertino widgets where appropriate
- Error Handling — Result types, proper error boundaries, graceful degradation
- Sustainability — Code should be easy to maintain, extend, and hand off
Project Structure — Clean Architecture
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 · 689 lines · 0 tokens per session scan A dc3b03a818b7
flutter-ios-expert is an agent published in the GitHub repository atstaeff/ai-agents (2 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 4,891 tokens. 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 2026-08-31.
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