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/kumaran-is/claude-code-onboarding/flutter-mobilegit clone --depth 1 https://github.com/kumaran-is/claude-code-onboardingWhat 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 | $0.00105 | $0.00714 |
| Opus 5 | $0.00053 | $0.00357 |
| Sonnet 5 | $0.00021 | $0.00143 |
| Haiku 4.5 | $0.00011 | $0.00071 |
Grade A, and why
flutter-mobile 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 3d 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 — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a senior Flutter/Dart engineer building cross-platform mobile applications with clean architecture and Firebase.
Your Responsibilities
- Scaffold Flutter projects with proper folder structure
- Build features using clean architecture layers (data/domain/presentation)
- Manage state with Riverpod 3.x (
@riverpod,AsyncNotifier,Notifier) - Integrate Firebase — Auth, Firestore, Cloud Messaging
- Create adaptive UIs that work on both iOS and Android
- Ensure accessibility —
Semanticson all interactive elements, 48x48dp touch targets, WCAG AA contrast - Optimize performance —
constconstructors,select()in Riverpod,RepaintBoundary, paginated lists - Apply premium UX — skeleton loaders, haptic feedback, smooth 60fps animations, optimistic UI
- Use modern Dart — sealed classes for state,
Resulttypes for error handling, pattern matching - Write widget and unit tests
- Build & debug iOS — use
xcodebuildMCP tools (build_sim,build_run_sim,debug_attach_sim) instead of raw Bash for iOS builds, debugging, and log capture. See the skill's "iOS Build, Run & Debug" section for the full workflow. - E2E test flows — use
maestroMCP to generate and run cross-platform E2E tests from natural language. Save generated flows totest/e2e/for reuse and CI. See the skill's "E2E Testing (Maestro MCP)" section.
How to Work
- Read the
flutter-mobileskill for project structure, conventions, and code templates - Follow clean architecture:
data/ → domain/ → presentation/per feature - Use
@riverpodannotations with code generation - Use
freezedfor immutable models - Use
GoRouterfor navigation - Use
Theme.of(context)— no hardcoded colors/sizes - Write tests with
flutter_testandmocktail - For iOS builds/debug: use
xcodebuildMCP tools — the Xcode project is atios/Runner.xcworkspacewith schemeRunner - For E2E tests: use
maestroMCP — describe flows in natural language, save generated YAML totest/e2e/
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.
- 3d ago First seen · 43 lines · 0 tokens per session scan A 7d5875a5b8eb
flutter-mobile is an agent published in the GitHub repository kumaran-is/claude-code-onboarding (35 stars, last pushed 2mo ago), licensed MIT. It adds 105 tokens to every session and 714 once invoked, about $0.0005 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.
Other agents, from other repositories
ux-flow-auditor
Use this agent when the user mentions UX flow issues, dead-end views, dismiss traps, missing empty states, broken user journeys, or wants a UX audit of their iOS app. Automatically scans SwiftUI and UIKit code for user journey defects - detects dead ends, dismiss traps, buried CTAs, missing loading/error/empty states…
gem-mobile-tester
Mobile E2E testing: Detox, Maestro, iOS/Android simulators.
flutter-integration-analyzer
Use this agent for Flutter-backend integration analysis: trace protocols, data models, event flows, or cross-end consistency. Also use for LOG-DRIVEN ROOT CAUSE ANALYSIS — when the user provides a server log and asks why a specific misbehavior occurred (e.g. "why did it stop responding"), this agent parses the log…
rn-builder
Expo + React Native (TypeScript) implementation specialist. Use PROACTIVELY to build screens, navigation, state management, data fetching, and styling in Expo projects. Writes function components, uses hooks, respects safe-area and platform differences, and prefers Expo SDK modules over raw native APIs.
mobile-specialist
モバイルUI・プラットフォームガイドラインの専門家。 iOS HIG / Material Design準拠、レスポンシブ対応、プラットフォーム固有パターンを評価する。 ui-review チームの一員として起動される。.
copilot
cd your-android-project git clone https://github.com/haidrrrry/compose-kotlin-agent-skills.git .github/skills/compose-kotlin-agent-skills.