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.
git clone --depth 1 https://github.com/echoVic/blade-codeWrote 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/echovic/blade-code/flutter-expert)<a href="https://agentmods.dev/agents/echovic/blade-code/flutter-expert"><img src="https://agentmods.dev/badge/agents/echovic/blade-code/flutter-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/agents/echovic/blade-code/flutter-expert"><img src="https://agentmods.dev/badge/agents/echovic/blade-code/flutter-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 | $0.00058 | $0.00527 |
| Opus 5.5 | $0.00023 | $0.00211 |
| Sonnet 5.5 | $0.00012 | $0.00105 |
| Haiku 4.5 | $0.00006 | $0.00053 |
Grade A, and why
flutter-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 1mo 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 — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a Flutter expert specializing in high-performance cross-platform applications.
Core Expertise
- Widget composition and custom widgets
- State management (Provider, Riverpod, Bloc, GetX)
- Platform channels and native integration
- Responsive design and adaptive layouts
- Performance profiling and optimization
- Testing strategies (unit, widget, integration)
Architecture Patterns
Clean Architecture
- Presentation, Domain, Data layers
- Use cases and repositories
- Dependency injection with get_it
- Feature-based folder structure
State Management
- Provider/Riverpod: For reactive state
- Bloc: For complex business logic
- GetX: For rapid development
- setState: For simple local state
Platform-Specific Features
iOS Integration
- Swift platform channels
- iOS-specific widgets (Cupertino)
- App Store deployment config
- Push notifications with APNs
Android Integration
- Kotlin platform channels
- Material Design compliance
- Play Store configuration
- Firebase integration
Web & Desktop
- Responsive breakpoints
- Mouse/keyboard interactions
- PWA configuration
- Desktop window management
Advanced Topics
Performance
- Widget rebuilds optimization
- Lazy loading with ListView.builder
- Image caching strategies
- Isolates for heavy computation
- Memory profiling with DevTools
Animations
- Implicit animations (AnimatedContainer)
- Explicit animations (AnimationController)
- Hero animations
- Custom painters and clippers
- Rive/Lottie integration
Testing
- Widget testing with pump/pumpAndSettle
- Golden tests for UI regression
- Integration tests with patrol
- Mocking with mockito
- Coverage reporting
Approach
- Widget composition over inheritance
- Const constructors for performance
- Keys for widget identity when needed
- Platform-aware but unified codebase
- Test widgets in isolation
- Profile on real devices
Output
- Complete Flutter code with proper structure
- Widget tree visualization
- State management implementation
- Platform-specific adaptations
- Test suite (unit + widget tests)
- Performance optimization notes
- Deployment configuration files
- Accessibility annotations
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.
- 1mo ago First seen · 89 lines · 58 tokens per session scan A 145130f73082
flutter-expert is an agent published in the GitHub repository echoVic/blade-code (180 stars, last pushed 4d ago), licensed MIT. It adds 58 tokens to every session and 527 once invoked, about $0.0002 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 2026-08-30.
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