Agent skill

Flutter Change Notifier

A skill your agent uses when setting up ChangeNotifier models, providing them to the widget tree, consuming state with Consumer or Provider.of, or optimizing rebuilds.

MITAuto-check passedMobile

Install Flutter Change Notifier

skills CLI

$ npx skills add evanca/flutter-ai-rules --skill flutter-change-notifier -a claude-code

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

GitHub CLI

$ gh skill install evanca/flutter-ai-rules flutter-change-notifier --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/evanca/flutter-ai-rules.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/flutter-change-notifier .claude/skills/flutter-change-notifier && 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-change-notifier" agent skill from https://github.com/evanca/flutter-ai-rules/tree/main/skills/flutter-change-notifier into .claude/skills/flutter-change-notifier/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-change-notifier", 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/evanca/flutter-ai-rules/tree/main/skills/flutter-change-notifier

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 evanca/flutter-ai-rules --skill flutter-change-notifier -a codex

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

GitHub CLI

$ gh skill install evanca/flutter-ai-rules flutter-change-notifier --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/evanca/flutter-ai-rules.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/flutter-change-notifier .agents/skills/flutter-change-notifier && 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-change-notifier" agent skill from https://github.com/evanca/flutter-ai-rules/tree/main/skills/flutter-change-notifier into .agents/skills/flutter-change-notifier/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-change-notifier", 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 evanca/flutter-ai-rules --skill flutter-change-notifier -a cursor

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

GitHub CLI

$ gh skill install evanca/flutter-ai-rules flutter-change-notifier --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/evanca/flutter-ai-rules.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/flutter-change-notifier .cursor/skills/flutter-change-notifier && 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-change-notifier" agent skill from https://github.com/evanca/flutter-ai-rules/tree/main/skills/flutter-change-notifier into .cursor/skills/flutter-change-notifier/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-change-notifier", 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/evanca/flutter-ai-rules.git --path skills/flutter-change-notifier

--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 evanca/flutter-ai-rules --skill flutter-change-notifier -a gemini-cli

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

GitHub CLI

$ gh skill install evanca/flutter-ai-rules flutter-change-notifier --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/evanca/flutter-ai-rules.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/flutter-change-notifier .gemini/skills/flutter-change-notifier && 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-change-notifier" agent skill from https://github.com/evanca/flutter-ai-rules/tree/main/skills/flutter-change-notifier into .gemini/skills/flutter-change-notifier/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-change-notifier", 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 evanca/flutter-ai-rules flutter-change-notifier

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 evanca/flutter-ai-rules --skill flutter-change-notifier -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/evanca/flutter-ai-rules.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/flutter-change-notifier .github/skills/flutter-change-notifier && 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-change-notifier" agent skill from https://github.com/evanca/flutter-ai-rules/tree/main/skills/flutter-change-notifier into .github/skills/flutter-change-notifier/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-change-notifier", 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 evanca/flutter-ai-rules --skill flutter-change-notifier -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 evanca/flutter-ai-rules flutter-change-notifier --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/evanca/flutter-ai-rules.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/flutter-change-notifier .opencode/skills/flutter-change-notifier && 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-change-notifier" agent skill from https://github.com/evanca/flutter-ai-rules/tree/main/skills/flutter-change-notifier into .opencode/skills/flutter-change-notifier/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "flutter-change-notifier", 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-change-notifier
GitHub stars: 649
Token cost: ~830 tokens
SKILL.md length: 236 words
Files: 1
Skills in repo: 37
Repo updated: Sep 14, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

A skill your agent uses when setting up ChangeNotifier models, providing them to the widget tree, consuming state with Consumer or Provider.of, or optimizing rebuilds.

Works in 5 steps: Model → Providing the Model → Consuming State → …
Setting up ChangeNotifier models
SKILL.md covers 1. Model, 2. Providing the Model, 3. Consuming State and 4. Optimization Rules, plus 2 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Flutter Change Notifier is an agent skill from evanca/flutter-ai-rules. Use when setting up ChangeNotifier models, providing them to the widget tree, consuming state with Consumer or Provider.of, or optimizing rebuilds.

Its SKILL.md is about 830 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: Flutter AI Skills and Rules for Claude, Codex, Cursor, and Other AI-Powered IDEs. The licence is MIT.

When your agent uses it

Setting up ChangeNotifier models
Providing them to the widget tree
Consuming state with Consumer
Optimizing rebuilds

Example prompts

“/flutter-change-notifier”

Workflow steps

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

Model
Providing the Model
Consuming State
Optimization Rules
Testing

What it can do on your machine

Read from SKILL.md and the folder at commit 7b9cce2. 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
Links to these hosts (documentation or services it may open):
- github.com
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 Change Notifier loads about 830 tokens when it runs. Until then it costs about 43 tokens; SKILL.md has 236 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~43
When it runs · the whole SKILL.md, loaded when a task matches: ~830

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 evanca/flutter-ai-rules at commit 7b9cce2, republished under its MIT licence (© evanca). 236 words, ~830 tokens.

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

name: flutter-change-notifier
description: Use when setting up ChangeNotifier models, providing them to the widget tree, consuming state with Consumer or Provider.of, or optimizing rebuilds.
license: MIT

Flutter ChangeNotifier Skill

This skill defines how to correctly use ChangeNotifier with the provider package for state management in Flutter.

1. Model

Extend ChangeNotifier to manage state. Keep internal state private and expose unmodifiable views. Call notifyListeners() on every state change.

dart

class CartModel extends ChangeNotifier {
  final List<Item> _items = [];

  UnmodifiableListView<Item> get items => UnmodifiableListView(_items);

  void add(Item item) {
    _items.add(item);
    notifyListeners();
  }

  void removeAll() {
    _items.clear();
    notifyListeners();
  }
}

Place shared state above the widgets that use it in the widget tree.
Never directly mutate widgets or call methods on them to change state — rebuild widgets with new data instead.

2. Providing the Model

dart

ChangeNotifierProvider(
  create: (context) => CartModel(),
  child: MyApp(),
)

ChangeNotifierProvider automatically disposes of the model when it is no longer needed.
Use MultiProvider when you need to provide multiple models:

dart

MultiProvider(
  providers: [
    ChangeNotifierProvider(create: (_) => CartModel()),
    ChangeNotifierProvider(create: (_) => UserModel()),
  ],
  child: MyApp(),
)

3. Consuming State

Consumer

dart

Consumer<CartModel>(
  builder: (context, cart, child) => Stack(
    children: [
      if (child != null) child,
      Text('Total price: ${cart.totalPrice}'),
    ],
  ),
  child: const SomeExpensiveWidget(), // rebuilt only once
)

Always specify the generic type (Consumer<CartModel>, not Consumer).
Use the child parameter to pass widgets that don't depend on the model — they are built once and reused.
Place Consumer widgets as deep in the widget tree as possible to minimize the scope of rebuilds:

dart

HumongousWidget(
  child: AnotherMonstrousWidget(
    child: Consumer<CartModel>(
      builder: (context, cart, child) {
        return Text('Total price: ${cart.totalPrice}');
      },
    ),
  ),
)

Provider.of with listen: false

Use Provider.of<T>(context, listen: false) when you only need to call methods on the model, not react to state changes:

dart

Provider.of<CartModel>(context, listen: false).removeAll();

4. Optimization Rules

Do not wrap large widget subtrees in a Consumer if only a small part depends on the model.
Avoid rebuilding widgets unnecessarily — structure your widget tree and provider usage carefully.
Use listen: false in callbacks (e.g., onPressed) where you trigger actions but don't need rebuilds.

5. Testing

Write unit tests for your ChangeNotifier models to verify state changes and notifications:

dart

test('adding item updates total', () {
  final cart = CartModel();
  var notified = false;
  cart.addListener(() => notified = true);

  cart.add(Item('Book'));

  expect(cart.items.length, 1);
  expect(notified, isTrue);
});

References

Flutter Website GitHub Repository

Files

Just SKILL.md in skills/flutter-change-notifier of evanca/flutter-ai-rules.

Open the folder on GitHubat commit 7b9cce2

Compare with similar skills

Flutter Change Notifier 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 Change Notifier compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Flutter Change Notifier this skillevanca/flutter-ai-rules	649	—	~830	Automated safety check: Pass	MIT	24 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	yesterday
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	3 days ago

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Works with

Flutter

Questions about Flutter Change Notifier

What does Flutter Change Notifier do?

A skill your agent uses when setting up ChangeNotifier models, providing them to the widget tree, consuming state with Consumer or Provider.of, or optimizing rebuilds. Flutter Change Notifier is an agent skill from evanca/flutter-ai-rules.of, or optimizing rebuilds.

When should I use Flutter Change Notifier?

Flutter Change Notifier fits situations like: setting up ChangeNotifier models; providing them to the widget tree; consuming state with Consumer; optimizing rebuilds.

How do I install Flutter Change Notifier in Claude Code?

Run `npx skills add evanca/flutter-ai-rules --skill flutter-change-notifier -a claude-code`. Or copy the skill folder (skills/flutter-change-notifier in evanca/flutter-ai-rules) into .claude/skills/flutter-change-notifier in your project. Claude Code loads it when a task matches its description.

How do I install Flutter Change Notifier in Codex?

Run `npx skills add evanca/flutter-ai-rules --skill flutter-change-notifier -a codex`. Or copy the skill folder (skills/flutter-change-notifier in evanca/flutter-ai-rules) into .agents/skills/flutter-change-notifier in your project. Codex loads it when a task matches its description.

Can I use Flutter Change Notifier 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 evanca/flutter-ai-rules --skill flutter-change-notifier -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-change-notifier, .gemini/skills/flutter-change-notifier, .github/skills/flutter-change-notifier and .opencode/skills/flutter-change-notifier in your project.

What does Flutter Change Notifier need to run?

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

Does Flutter Change Notifier access the network?

SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.

Is Flutter Change Notifier 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 Change Notifier use?

Flutter Change Notifier is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Flutter Change Notifier use?

About 830 tokens (SKILL.md is roughly 3.3k 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 Change Notifier?

Skills that share tags, products or a category with Flutter Change Notifier: 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 Change Notifier?

evanca (a GitHub user) maintains it in evanca/flutter-ai-rules, which has 649 GitHub stars. The repository holds 37 skills in this directory. The repository was last updated on September 14, 2026.

Source: evanca/flutter-ai-rules 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 Change Notifier

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

Flutter ChangeNotifier Skill

1. Model

2. Providing the Model

3. Consuming State

Consumer

Provider.of with listen: false

4. Optimization Rules

5. Testing

References

Files

Compare with similar skills

Similar skills

More from evanca/flutter-ai-rules

Related

Questions about Flutter Change Notifier