Flutter Riverpod State Management
andrewyng/context-hub
Guides Flutter state management with Riverpod: choosing provider types, wiring ConsumerWidgets, handling async state and lifecycle, and overriding providers in tests.
Reference for the signals_flutter package: reactive signals, computed values, effects, async signals and collection signals bound to Flutter widgets.
Install Signals for Flutter
$ npx skills add rodydavis/signals.dart --skill signals-flutter -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rodydavis/signals.dart signals-flutter --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/rodydavis/signals.dart.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/signals-flutter .claude/skills/signals-flutter && rm -rf skills-srcUse ~/.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/
Install the "signals-flutter" agent skill from https://github.com/rodydavis/signals.dart/tree/main/skills/signals-flutter into .claude/skills/signals-flutter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "signals-flutter", 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 install https://github.com/rodydavis/signals.dart/tree/main/skills/signals-flutterType 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.
$ npx skills add rodydavis/signals.dart --skill signals-flutter -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rodydavis/signals.dart signals-flutter --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rodydavis/signals.dart.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/signals-flutter .agents/skills/signals-flutter && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "signals-flutter" agent skill from https://github.com/rodydavis/signals.dart/tree/main/skills/signals-flutter into .agents/skills/signals-flutter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "signals-flutter", 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.
$ npx skills add rodydavis/signals.dart --skill signals-flutter -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rodydavis/signals.dart signals-flutter --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rodydavis/signals.dart.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/signals-flutter .cursor/skills/signals-flutter && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "signals-flutter" agent skill from https://github.com/rodydavis/signals.dart/tree/main/skills/signals-flutter into .cursor/skills/signals-flutter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "signals-flutter", 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 https://github.com/rodydavis/signals.dart.git --path skills/signals-flutter--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add rodydavis/signals.dart --skill signals-flutter -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rodydavis/signals.dart signals-flutter --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rodydavis/signals.dart.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/signals-flutter .gemini/skills/signals-flutter && rm -rf skills-srcUse ~/.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/
Install the "signals-flutter" agent skill from https://github.com/rodydavis/signals.dart/tree/main/skills/signals-flutter into .gemini/skills/signals-flutter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "signals-flutter", 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.
$ gh skill install rodydavis/signals.dart signals-flutterInstalls 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).
$ npx skills add rodydavis/signals.dart --skill signals-flutter -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/rodydavis/signals.dart.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/signals-flutter .github/skills/signals-flutter && rm -rf skills-srcUse ~/.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/
Install the "signals-flutter" agent skill from https://github.com/rodydavis/signals.dart/tree/main/skills/signals-flutter into .github/skills/signals-flutter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "signals-flutter", 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.
$ npx skills add rodydavis/signals.dart --skill signals-flutter -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install rodydavis/signals.dart signals-flutter --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rodydavis/signals.dart.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/signals-flutter .opencode/skills/signals-flutter && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "signals-flutter" agent skill from https://github.com/rodydavis/signals.dart/tree/main/skills/signals-flutter into .opencode/skills/signals-flutter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "signals-flutter", 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
signals-flutter- GitHub stars
- 819
- Token cost
- ~1.9k tokens
- SKILL.md length
- 575 words
- Files
- 35
- Skills in repo
- 15
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Reference for the signals_flutter package: reactive signals, computed values, effects, async signals and collection signals bound to Flutter widgets.
- Works in 5 steps: signal(initialValue) → untracked(fn) → computed(fn) → …
- Adding reactive state to a Flutter app with signals
- SKILL.md covers Related Documentation & Items, Core Primitives Quick Start…, 1. Widget Rebuild Optimization and 2. High-Frequency Rendering…, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
The skill covers using the signals_flutter package for Flutter UI bindings, with element-level reactive tracking and efficient updates under frequent rendering. Its documentation is split by area: core primitives (signal, computed, effect, readonly, batch), asynchronous signals and reactive collections.
Core pages describe writable state, lazy memoized derived values, synchronous effects with teardown, and batched mutation that avoids recompute churn. Async pages cover future, stream and unified async signals, composable async computations with race-condition protection, and an aggregator that merges several async signals. Collection pages cover list, set, map, iterable and queue signals with element-level reactivity.
When your agent uses it
- Adding reactive state to a Flutter app with signals
- Rebuilding only the widgets that read a changed signal
- Wrapping futures or streams as loading, data and error states
- Making lists, maps or sets reactive in Flutter
Example prompts
- “Convert this counter widget from setState to signals_flutter.”
- “Create a computed signal for the cart total that updates when items change.”
- “Wrap this stream in a stream signal and show loading and error states in the UI.”
Requirements
- A Flutter project with the signals_flutter package
Workflow steps
5 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 81d64e8. 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
Signals for Flutter loads about 1.9k tokens when it runs. Until then it costs about 23 tokens; SKILL.md has 575 words of instructions outside code blocks.
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 rodydavis/signals.dart at commit 81d64e8, republished under its Apache-2.0 licence (© rodydavis). 575 words, ~1,891 tokens.
Download SKILL.mdSave it as
.claude/skills/signals-flutter/SKILL.md (or your agent's skills folder). This skill also uses 34 other files; get the full folder from GitHub.- name
- signals-flutter
- description
- Highly optimized Flutter UI bindings and GPU rendering for reactive signals.
Flutter Reactive Signals Integration
This skill covers optimizing Flutter UI bindings, element-level reactive tracking, and high-frequency rendering utilizing the signals_flutter package.
Related Documentation & Items
Core Primitives
| Related File | Description |
|---|---|
| signal.md | Standard writeable reactive state primitive containing value accessors, mutation mechanics, and basic custom options. |
| computed.md | Lazy, memoized read-only derived state signal tracking reactive dependencies dynamically. |
| effect.md | Synchronous observer managing active subscription loops, dynamic dependency updates, and lifecycle teardown. |
| readonly.md | Read-only signal views ensuring unidirectional data access flows. |
| batch.md | Transactional state mutation blocks optimizing reactive computations and preventing rendering/recompute churn. |
Asynchronous Operations
| Related File | Description |
|---|---|
| future_signal.md | Single-evaluation asynchronous future state representation resolving the double-evaluation issue. |
| stream_signal.md | Dynamic, lifecycle-safe, self-disposing stream listener mapping to async loading/data/error states. |
| async_signal.md | Unifying async state container mapping loading, success data, and failure error states cleanly. |
| computed_async.md | Composable asynchronous operations built over reactive signals with active race condition protection. |
| computed_from.md | State aggregator signal merging multiple async signals into a single unified result. |
Reactive Collections
| Related File | Description |
|---|---|
| list_signal.md | Optimized list wrapper proxying standard operations to support element-level reactivity. |
| set_signal.md | Custom set wrapper ignoring duplicates and notifying on unique mutations. |
| map_signal.md | Granular map wrapper supporting isolated dictionary element lookup triggers. |
| iterable_signal.md | Iterable wrapper mapping custom lazy traversals to dynamic subscription layers. |
| queue_signal.md | Double-ended queue wrapper supporting optimized reactive pipeline structures. |
Utility Primitives
| Related File | Description |
|---|---|
| linked_signal.md | Writable computed signals supporting manual override resets and custom equivalence checks. |
| tracked_signal.md | State history wrapper enabling clean out-of-the-box undo/redo mechanisms. |
| timer_signal.md | Periodically emitting stopwatch signal with built-in pause, resume, and reset. |
| connect.md | Dynamic event connector feeding multiple external data pipelines into single targets. |
Flutter Widgets
| Related File | Description |
|---|---|
| signal_builder.md | Localized subtree rebuilding widget utilizing the named builder callback signature. |
| signal_widget.md | Component-level reactive stateless/stateful widgets resolving SignalsMixin deprecations. |
| signal_effect.md | Layout-safe side effect orchestrator mapping trigger events (e.g. snackbars, dialogs, routes) cleanly. |
| signal_custom_paint.md | Ultra-high performance GPU render box bypass painting canvas operations at 120 FPS. |
Flutter Extensions
| Related File | Description |
|---|---|
| watch.md | [DEPRECATED] Legacy context-level watch extension (prefer SignalBuilder or SignalWidget). |
Core Primitives Quick Start Guide
The signals library exposes five core functions which are the building blocks to model any reactive business logic.
Show full SKILL.md (226 more words)Show less
1. signal(initialValue)
Creates a new mutable signal container. You read a signal's value or subscribe to updates by accessing .value.
final counter = signal(0);
print(counter.value); // 0
counter.value = 1; // Mutates value and schedules dependent updates.peek()
Reads a signal's current value without subscribing to its mutations.
final counter = signal(0);
final logCount = signal(0);
effect(() {
print(counter.value);
// Read using peek to avoid subscribing/triggering loop
logCount.value = logCount.peek() + 1;
});2. untracked(fn)
Executes a callback that reads signals without subscribing to any of them.
final counter = signal(0);
final count = signal(0);
effect(() {
print(counter.value);
count.value = untracked(() => count.value + 1);
});3. computed(fn)
Combines the values of multiple signals into a lazy, memoized derived signal.
final first = signal('John');
final last = signal('Doe');
final fullName = computed(() => '${first.value} ${last.value}');
print(fullName.value); // John Doe4. effect(fn)
Orchestrates immediate synchronous side effects by running a callback and subscribing to any signals read within it.
final name = signal('Jane');
final dispose = effect(() => print('Hello $name'));
dispose(); // Clean up subscription5. batch(fn)
Groups multiple signal writes into a single transaction, executing all dependent computed evaluations and effects exactly once at the end.
final a = signal(0);
final b = signal(0);
batch(() {
a.value = 1;
b.value = 2;
});1. Widget Rebuild Optimization
A. SignalBuilder (Preferred)
Provides localized, context-isolated widget rebuilding. Wrap only the smallest possible widgets in SignalBuilder to keep rendering extremely high-performance.
SignalBuilder(
builder: (context) => Text('Count: ${counter.value}'),
)B. Reactive Component Widgets (SignalWidget / SignalStatefulWidget)
In v7, SignalsMixin and BuildContext.watch(context) are deprecated (and will trigger warnings via custom lint rules). Instead of mixins or context extension watches, inherit from SignalWidget or SignalStatefulWidget for automatic, highly optimized reactive tracking inside standard widget trees:
// Reactive Stateless Widget
class MyWidget extends SignalWidget {
const MyWidget({super.key});
@override
Widget build(BuildContext context) {
return Text('Count: ${counter.value}');
}
}2. High-Frequency Rendering (SignalCustomPaint)
For ultra-high-frequency drawing driven by signals, bypass Flutter's heavy widget layout/rebuild lifecycle entirely.
SignalCustomPaint and SignalPainterWidget write directly to the GPU via markNeedsPaint() calls inside custom proxy render boxes:
SignalCustomPaint(
painter: MySignalPainter(progressSignal),
child: Container(),
)3. Side Effects in Widget Trees (SignalEffect)
Use SignalEffect / SignalListener to trigger asynchronous side-effects (e.g., showing snackbars, navigation, showing modals) cleanly inside the widget lifecycle.
SignalEffect(
callback: (context) {
if (errorMessage.value != null) {
showDialog(context: context, builder: (_) => Alert(errorMessage.value!));
}
},
child: ChildWidget(),
)© rodydavis, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 34 other files in skills/signals-flutter of rodydavis/signals.dart.
- SKILL.md
- CONTEXT.md
- async/CONTEXT.md
- async/async_signal.md
- async/computed_async.md
- async/computed_from.md
- async/future_signal.md
- async/stream_signal.md
- collections/CONTEXT.md
- collections/iterable_signal.md
- collections/list_signal.md
- collections/map_signal.md
- collections/queue_signal.md
- collections/set_signal.md
- core/CONTEXT.md
- core/batch.md
- core/computed.md
- core/effect.md
- … and 17 more
Open the folder on GitHubat commit 81d64e8
Compare with similar skills
Signals for Flutter 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Signals for Flutter this skillrodydavis/signals.dart | 819 | — | ~1.9k | Automated safety check: Pass | Apache-2.0 | |
| Flutter Riverpod State Managementandrewyng/context-hub | 14k | — | ~1.1k | Automated safety check: Pass | MIT | |
| BlocVeryGoodOpenSource/vgv-ai-flutter-plugin | 170 | — | ~2k | Automated safety check: Pass | MIT | |
| Flutter Dart Code Reviewaffaan-m/ECC | 276k | 2 repos | ~5.8k | Automated safety check: Notes | MIT | |
| Flutter Bloc and Cubitandrewyng/context-hub | 14k | — | ~998 | Automated safety check: Pass | MIT | |
| Flutter ExpertFNOSP/FlyNarwhal | 496 | 2 repos | ~758 | Automated safety check: Pass | MIT |
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Categories
Questions about Signals for Flutter
What does Signals for Flutter do?
Reference for the signals_flutter package: reactive signals, computed values, effects, async signals and collection signals bound to Flutter widgets. The skill covers using the signals_flutter package for Flutter UI bindings, with element-level reactive tracking and efficient updates under frequent rendering. Its documentation is split by area: core primitives (signal, computed, effect, readonly, batch), asynchronous signals and reactive collections.
When should I use Signals for Flutter?
Signals for Flutter fits situations like: adding reactive state to a Flutter app with signals; rebuilding only the widgets that read a changed signal; wrapping futures or streams as loading, data and error states; making lists, maps or sets reactive in Flutter.
How do I install Signals for Flutter in Claude Code?
Run `npx skills add rodydavis/signals.dart --skill signals-flutter -a claude-code`. Or copy the skill folder (skills/signals-flutter in rodydavis/signals.dart) into .claude/skills/signals-flutter in your project. Claude Code loads it when a task matches its description.
How do I install Signals for Flutter in Codex?
Run `npx skills add rodydavis/signals.dart --skill signals-flutter -a codex`. Or copy the skill folder (skills/signals-flutter in rodydavis/signals.dart) into .agents/skills/signals-flutter in your project. Codex loads it when a task matches its description.
Can I use Signals for Flutter 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 rodydavis/signals.dart --skill signals-flutter -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/signals-flutter, .gemini/skills/signals-flutter, .github/skills/signals-flutter and .opencode/skills/signals-flutter in your project.
What does Signals for Flutter need to run?
SKILL.md names no scripts, command-line tools or credentials: Signals for Flutter is instructions for the agent only. Our summary lists: A Flutter project with the signals_flutter package.
Does Signals for Flutter 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 Signals for Flutter 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 Signals for Flutter use?
Signals for Flutter is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Signals for Flutter use?
About 1.9k tokens (SKILL.md is roughly 7.6k 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 Signals for Flutter?
Skills that share tags, products or a category with Signals for Flutter: Flutter Riverpod State Management (andrewyng/context-hub, 14k stars), Bloc (VeryGoodOpenSource/vgv-ai-flutter-plugin, 170 stars), Flutter Dart Code Review (affaan-m/ECC, 276k stars) and Flutter Bloc and Cubit (andrewyng/context-hub, 14k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Signals for Flutter?
rodydavis (a GitHub user) maintains it in rodydavis/signals.dart, which has 819 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on September 14, 2026.
Source: rodydavis/signals.dart on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.