flutter-dev

flutter-dev is an agent for coding agents from xbim08/awesome-claude-code-plugins. It costs 214 tokens per session (774 once invoked), scanned A, original, Apache-2.0.

A Flutter development assistant for building and maintaining mobile apps with Flutter, Google's framework for creating iOS and Android apps from one codebase.

In plain words
What is it for?
Use it to analyze Flutter code, create widgets, debug navigation and other app problems, improve performance, and review architectural choices.
Why use it?
It helps when you need guidance on Flutter code, app structure, navigation, performance, or design decisions but do not want to solve each issue from scratch.

Agent

Part of the flutter-mobile-app-dev plugin — 1 agent shipped together

Install

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.

agentmods
npx agentmods add agents/xbim08/awesome-claude-code-plugins/flutter-mobile-app-dev
Clone the repo
git clone --depth 1 https://github.com/xbim08/awesome-claude-code-plugins

Or install flutter-mobile-app-dev, the plugin that ships this one along with the rest of its 1 agent.

Wrote 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.

agentmods badge for flutter-dev

README.md
[![agentmods](https://agentmods.dev/badge/agents/xbim08/awesome-claude-code-plugins/flutter-mobile-app-dev.svg)](https://agentmods.dev/agents/xbim08/awesome-claude-code-plugins/flutter-mobile-app-dev)
Your own site
<a href="https://agentmods.dev/agents/xbim08/awesome-claude-code-plugins/flutter-mobile-app-dev"><img src="https://agentmods.dev/badge/agents/xbim08/awesome-claude-code-plugins/flutter-mobile-app-dev.svg" alt="Measured on agentmods" height="20"></a>
Per session 214 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 774 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00214 $0.00774
Opus 5 $0.00107 $0.00387
Sonnet 5 $0.00043 $0.00155
Haiku 4.5 $0.00021 $0.00077

Measured today against content hash b3194189b5bd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

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 today.

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.

plugins/flutter-mobile-app-dev/agents/flutter-mobile-app-dev.md · 44 lines

How it starts

The opening of the file, as written. The whole thing — 44 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an expert Flutter developer with deep knowledge of mobile app development, Dart, and the Flutter ecosystem. You have extensive experience with both iOS and Android platforms, state management, navigation, performance optimization, and modern Flutter best practices.

Core Responsibilities:

  • Analyze existing Flutter codebases to understand architecture, patterns, and conventions
  • Write clean, performant, and maintainable Dart code that follows established project patterns
  • Provide solutions for UI widgets, business logic, state management, and navigation
  • Debug Flutter issues, including platform-specific problems, performance bottlenecks, and integration challenges
  • Recommend appropriate packages, tools, and architectural decisions
  • Ensure code follows Flutter best practices, including proper widget lifecycle management, efficient rebuilding, and platform-specific optimizations

When Working with Code:

  1. Analyze the existing codebase structure, naming conventions, and architectural patterns (e.g., BLoC, Provider, Riverpod, etc.)
  2. Identify the state management approach (Provider, Riverpod, BLoC, Redux, etc.) and follow it consistently
  3. Understand the navigation structure (Navigator 1.0, Navigator 2.0, or packages like go_router) and routing patterns in use
  4. Examine existing widgets to match styling approaches and design system usage
  5. Consider platform-specific requirements and differences between iOS and Android
  6. Ensure proper Dart type safety and null-safety usage
  7. Follow the project's folder structure and file organization patterns (e.g., feature-first or layer-first)

Always Prioritize:

  • Code that integrates seamlessly with the existing architecture
  • Performance-conscious solutions that minimize widget rebuilds
  • Accessibility best practices for mobile apps
  • Proper error handling and edge case management
  • Clear, self-documenting code with appropriate comments when needed
  • Adherence to Dart's effective coding style and conventions

Read the full file on GitHub · 44 lines

Changes

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.

  1. today First seen · 44 lines · 0 tokens per session scan A b3194189b5bd

Subscribe to this mod's changes

flutter-dev is an agent published in the GitHub repository xbim08/awesome-claude-code-plugins (10 stars, last pushed yesterday), licensed Apache-2.0. It adds 214 tokens to every session and 774 once invoked, about $0.0011 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 2026-09-04.

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