Agent skill

Flutter Architecting Apps

Architects a Flutter application using the recommended layered approach (UI, Logic, Data).

BSD-3-ClauseAuto-check passedMobile

Install Flutter Architecting Apps

skills CLI

$ npx skills add btwld/superdeck --skill flutter-architecting-apps -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install btwld/superdeck flutter-architecting-apps --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/btwld/superdeck.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/flutter-architecting-apps .claude/skills/flutter-architecting-apps && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "flutter-architecting-apps" agent skill from https://github.com/btwld/superdeck/tree/main/.agents/skills/flutter-architecting-apps into .claude/skills/flutter-architecting-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-architecting-apps", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/btwld/superdeck/tree/main/.agents/skills/flutter-architecting-apps

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add btwld/superdeck --skill flutter-architecting-apps -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install btwld/superdeck flutter-architecting-apps --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/btwld/superdeck.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/flutter-architecting-apps .agents/skills/flutter-architecting-apps && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "flutter-architecting-apps" agent skill from https://github.com/btwld/superdeck/tree/main/.agents/skills/flutter-architecting-apps into .agents/skills/flutter-architecting-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-architecting-apps", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add btwld/superdeck --skill flutter-architecting-apps -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install btwld/superdeck flutter-architecting-apps --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/btwld/superdeck.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/flutter-architecting-apps .cursor/skills/flutter-architecting-apps && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "flutter-architecting-apps" agent skill from https://github.com/btwld/superdeck/tree/main/.agents/skills/flutter-architecting-apps into .cursor/skills/flutter-architecting-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-architecting-apps", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/btwld/superdeck.git --path .agents/skills/flutter-architecting-apps

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add btwld/superdeck --skill flutter-architecting-apps -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install btwld/superdeck flutter-architecting-apps --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/btwld/superdeck.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/flutter-architecting-apps .gemini/skills/flutter-architecting-apps && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "flutter-architecting-apps" agent skill from https://github.com/btwld/superdeck/tree/main/.agents/skills/flutter-architecting-apps into .gemini/skills/flutter-architecting-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-architecting-apps", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install btwld/superdeck flutter-architecting-apps

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add btwld/superdeck --skill flutter-architecting-apps -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/btwld/superdeck.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/flutter-architecting-apps .github/skills/flutter-architecting-apps && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "flutter-architecting-apps" agent skill from https://github.com/btwld/superdeck/tree/main/.agents/skills/flutter-architecting-apps into .github/skills/flutter-architecting-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-architecting-apps", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add btwld/superdeck --skill flutter-architecting-apps -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install btwld/superdeck flutter-architecting-apps --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/btwld/superdeck.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/flutter-architecting-apps .opencode/skills/flutter-architecting-apps && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "flutter-architecting-apps" agent skill from https://github.com/btwld/superdeck/tree/main/.agents/skills/flutter-architecting-apps into .opencode/skills/flutter-architecting-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-architecting-apps", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: flutter-architecting-apps
GitHub stars: 130
Token cost: ~1.8k tokens
SKILL.md length: 599 words
Files: 1
Skills in repo: 23
Repo updated: Sep 28, 2026
First seen: Oct 7, 2026
Licence: BSD-3-Clause

At a glance

Architects a Flutter application using the recommended layered approach (UI, Logic, Data).

Works in 3 steps: UI Layer (Presentation) → Logic Layer (Domain) - Conditional → Data Layer (Model)
Structuring a new project
SKILL.md covers SuperDeck architecture, Contents, Core Architectural Principles and Structuring the Layers, plus 3 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Flutter Architecting Apps is an agent skill from btwld/superdeck. Architects a Flutter application using the recommended layered approach (UI, Logic, Data). Use when structuring a new project or refactoring for scalability.

Its SKILL.md is about 1.8k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Mobile, covering Cross-platform mobile apps. It works with Flutter. The repository describes itself as: Presentation slides for Flutter with Flutter. The licence is BSD-3-Clause.

When your agent uses it

Structuring a new project
Refactoring for scalability

Example prompts

“Use the flutter-architecting-apps skill to architect a Flutter application using the recommended layered approach (UI, Logic, Data)”
“/flutter-architecting-apps”

Workflow steps

3 steps, taken from the step headings in SKILL.md.

UI Layer (Presentation)
Logic Layer (Domain) - Conditional
Data Layer (Model)

What it can do on your machine

Read from SKILL.md and the folder at commit 815a746. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are dart).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Flutter Architecting Apps loads about 1.8k tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 599 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~46
When it runs · the whole SKILL.md, loaded when a task matches: ~1.8k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from btwld/superdeck at commit 815a746, republished under its BSD-3-Clause licence (© btwld). 599 words, ~1,781 tokens.

Download SKILL.mdSave it as .claude/skills/flutter-architecting-apps/SKILL.md (or your agent's skills folder).

name: flutter-architecting-apps
description: Architects a Flutter application using the recommended layered approach (UI, Logic, Data). Use when structuring a new project or refactoring for scalability.
metadata.model: models/gemini-3.1-pro-preview
metadata.last_modified: Thu, 12 Mar 2026 22:13:42 GMT

Architecting Flutter Applications

SuperDeck architecture

Follow the root AGENTS.md: organize lib/src/ by feature/domain, colocate models with their domain, and mirror source paths under test/. Preserve the Dart-only core/builder boundary and existing Signals/controllers. The conceptual layers below do not require top-level type/layer folders or a new service, repository, and ViewModel for every change; introduce abstractions when the feature needs them.

Core Architectural Principles
Structuring the Layers
Implementing the Data Layer
Feature Implementation Workflow
Examples

Core Architectural Principles

Design Flutter applications to scale by strictly adhering to the following principles:

Enforce Separation of Concerns: Decouple UI rendering from business logic and data fetching. Organize the codebase into distinct layers (UI, Logic, Data) and further separate by feature within those layers.
Maintain a Single Source of Truth (SSOT): Centralize application state and data in the Data layer. Ensure the SSOT is the only component authorized to mutate its respective data.
Implement Unidirectional Data Flow (UDF): Flow state downwards from the Data layer to the UI layer. Flow events upwards from the UI layer to the Data layer.
Treat UI as a Function of State: Drive the UI entirely via immutable state objects. Rebuild widgets reactively when the underlying state changes.

Structuring the Layers

Separate the application into 2 to 3 distinct layers depending on complexity. Restrict communication so that a layer only interacts with the layer directly adjacent to it.

1. UI Layer (Presentation)

Views (Widgets): Build reusable, lean widgets. Strip all business and data-fetching logic from the widget tree. Restrict widget logic to UI-specific concerns (e.g., animations, routing, layout constraints).
ViewModels: Manage the UI state. Consume domain models from the Data/Logic layers and transform them into presentation-friendly formats. Expose state to the Views and handle user interaction events.

2. Logic Layer (Domain) - Conditional

If the application requires complex client-side business logic: Implement a Logic layer containing Use Cases or Interactors. Use this layer to orchestrate interactions between multiple repositories before passing data to the UI layer.
If the application is a standard CRUD app: Omit this layer. Allow ViewModels to interact directly with Repositories.

Show full SKILL.md (256 more words)Show less

3. Data Layer (Model)

Responsibilities: Act as the SSOT for all application data. Handle business data, external API consumption, event processing, and data synchronization.
Components: Divide the Data layer strictly into Repositories and Services.

Implementing the Data Layer

Services

Role: Wrap external APIs (HTTP servers, local databases, platform plugins).
Implementation: Write Services as stateless Dart classes. Do not store application state here.
Mapping: Create exactly one Service class per external data source.

Repositories

Role: Act as the SSOT for domain data.
Implementation: Consume raw data from Services. Handle caching, offline synchronization, and retry logic.
Transformation: Transform raw API/Service data into clean Domain Models formatted for consumption by ViewModels.

Feature Implementation Workflow

Follow this sequential workflow when adding a new feature to the application.

Task Progress:

Step 1: Define Domain Models. Create immutable Dart classes representing the core data structures required by the feature.
Step 2: Implement Services. Create stateless Service classes to handle raw data fetching (e.g., HTTP GET/POST).
Step 3: Implement Repositories. Create Repository classes that consume the Services, handle caching, and return Domain Models.
Step 4: Implement ViewModels. Create ViewModels that consume the Repositories. Expose immutable state and define methods (commands) for user actions.
Step 5: Implement Views. Create Flutter Widgets that bind to the ViewModel state and trigger ViewModel methods on user interaction.
Step 6: Run Validator. Execute unit tests for Services, Repositories, and ViewModels. Execute widget tests for Views.
- Feedback Loop: Review test failures -> Fix logic/mocking errors -> Re-run tests until passing.

Examples

Data Layer: Service and Repository

dart

// 1. Service (Stateless API Wrapper)
class UserApiService {
  final HttpClient _client;
  
  UserApiService(this._client);

  Future<Map<String, dynamic>> fetchUserRaw(String userId) async {
    final response = await _client.get('/users/$userId');
    return response.data;
  }
}

// 2. Domain Model (Immutable)
class User {
  final String id;
  final String name;
  
  const User({required this.id, required this.name});
}

// 3. Repository (SSOT & Data Transformer)
class UserRepository {
  final UserApiService _apiService;
  User? _cachedUser;

  UserRepository(this._apiService);

  Future<User> getUser(String userId) async {
    if (_cachedUser != null && _cachedUser!.id == userId) {
      return _cachedUser!;
    }
    
    final rawData = await _apiService.fetchUserRaw(userId);
    final user = User(id: rawData['id'], name: rawData['name']);
    
    _cachedUser = user; // Cache data
    return user;
  }
}

UI Layer: ViewModel and View

dart

// 4. ViewModel (State Management)
class UserViewModel extends ChangeNotifier {
  final UserRepository _userRepository;
  
  User? user;
  bool isLoading = false;
  String? error;

  UserViewModel(this._userRepository);

  Future<void> loadUser(String userId) async {
    isLoading = true;
    error = null;
    notifyListeners();

    try {
      user = await _userRepository.getUser(userId);
    } catch (e) {
      error = e.toString();
    } finally {
      isLoading = false;
      notifyListeners();
    }
  }
}

// 5. View (Lean UI)
class UserProfileView extends StatelessWidget {
  final UserViewModel viewModel;

  const UserProfileView({Key? key, required this.viewModel}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return ListenableBuilder(
      listenable: viewModel,
      builder: (context, child) {
        if (viewModel.isLoading) return const CircularProgressIndicator();
        if (viewModel.error != null) return Text('Error: ${viewModel.error}');
        if (viewModel.user == null) return const Text('No user data.');
        
        return Text('Hello, ${viewModel.user!.name}');
      },
    );
  }
}

Files

Just SKILL.md in .agents/skills/flutter-architecting-apps of btwld/superdeck.

Open the folder on GitHubat commit 815a746

Compare with similar skills

Flutter Architecting Apps next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Flutter Architecting Apps compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Flutter Architecting Apps this skillbtwld/superdeck	130	—	~1.8k	Automated safety check: Pass	BSD-3-Clause	10 days ago
Add Flutter Docusaurus Localematthiasn/lotti	1.2k	—	~1.2k	Automated safety check: Pass	GPL-3.0	today
Tm Launcher DesignFar-Se/tabame	372	—	~3.1k	Automated safety check: Pass	MIT	today
Mobile App UI Designceorkm/mobile-app-ui-design	400	—	~2k	Automated safety check: Pass	None	3 mo ago
Marionette Flutter Drive Appleancodepl/marionette_mcp	473	—	~11k	Automated safety check: Pass	Apache-2.0	2 days ago
Flutter ScreenshotJustLookAtNow/pt_mate	503	—	~511	Automated safety check: Pass	MIT	2 days ago

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Questions about Flutter Architecting Apps

What does Flutter Architecting Apps do?

Architects a Flutter application using the recommended layered approach (UI, Logic, Data). Flutter Architecting Apps is an agent skill from btwld/superdeck. Architects a Flutter application using the recommended layered approach (UI, Logic, Data).

When should I use Flutter Architecting Apps?

Flutter Architecting Apps fits situations like: structuring a new project; refactoring for scalability.

How do I install Flutter Architecting Apps in Claude Code?

Run `npx skills add btwld/superdeck --skill flutter-architecting-apps -a claude-code`. Or copy the skill folder (.agents/skills/flutter-architecting-apps in btwld/superdeck) into .claude/skills/flutter-architecting-apps in your project. Claude Code loads it when a task matches its description.

How do I install Flutter Architecting Apps in Codex?

Run `npx skills add btwld/superdeck --skill flutter-architecting-apps -a codex`. Or copy the skill folder (.agents/skills/flutter-architecting-apps in btwld/superdeck) into .agents/skills/flutter-architecting-apps in your project. Codex loads it when a task matches its description.

Can I use Flutter Architecting Apps in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add btwld/superdeck --skill flutter-architecting-apps -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/flutter-architecting-apps, .gemini/skills/flutter-architecting-apps, .github/skills/flutter-architecting-apps and .opencode/skills/flutter-architecting-apps in your project.

What does Flutter Architecting Apps need to run?

SKILL.md names no scripts, command-line tools or credentials: Flutter Architecting Apps is instructions for the agent only.

Does Flutter Architecting Apps access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Flutter Architecting Apps safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Flutter Architecting Apps use?

Flutter Architecting Apps is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Flutter Architecting Apps use?

About 1.8k tokens (SKILL.md is roughly 7.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Flutter Architecting Apps?

Skills that share tags, products or a category with Flutter Architecting Apps: Add Flutter Docusaurus Locale (matthiasn/lotti, 1.2k stars), Tm Launcher Design (Far-Se/tabame, 372 stars), Mobile App UI Design (ceorkm/mobile-app-ui-design, 400 stars) and Marionette Flutter Drive App (leancodepl/marionette_mcp, 473 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Flutter Architecting Apps?

btwld (a GitHub organization) maintains it in btwld/superdeck, which has 130 GitHub stars. The repository holds 23 skills in this directory. The repository was last updated on September 28, 2026.

Source: btwld/superdeck on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Flutter Architecting Apps

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Architecting Flutter Applications

SuperDeck architecture

Contents

Core Architectural Principles

Structuring the Layers

1. UI Layer (Presentation)

2. Logic Layer (Domain) - Conditional

3. Data Layer (Model)

Implementing the Data Layer

Services

Repositories

Feature Implementation Workflow

Examples

Data Layer: Service and Repository

UI Layer: ViewModel and View

Files

Compare with similar skills

Similar skills

More from btwld/superdeck

Related

Questions about Flutter Architecting Apps