angular-state-management

Implement application state with Angular Signals, computed derivations, and NgRx Signal Store. Use when implementing reactive state with signal(), computed(), effect(), or @ngrx/signals in Angular. (triggers: **/*.store.ts, **/state/**, angular signals, signal store, computed, effect, linkedSignal)

385 stars

Best use case

angular-state-management is best used when you need a repeatable AI agent workflow instead of a one-off prompt.

Implement application state with Angular Signals, computed derivations, and NgRx Signal Store. Use when implementing reactive state with signal(), computed(), effect(), or @ngrx/signals in Angular. (triggers: **/*.store.ts, **/state/**, angular signals, signal store, computed, effect, linkedSignal)

Teams using angular-state-management should expect a more consistent output, faster repeated execution, less prompt rewriting.

When to use this skill

  • You want a reusable workflow that can be run more than once with consistent structure.

When not to use this skill

  • You only need a quick one-off answer and do not need a reusable workflow.
  • You cannot install or maintain the underlying files, dependencies, or repository context.

Installation

Claude Code / Cursor / Codex

$curl -o ~/.claude/skills/angular-state-management/SKILL.md --create-dirs "https://raw.githubusercontent.com/HoangNguyen0403/agent-skills-standard/main/skills/angular/angular-state-management/SKILL.md"

Manual Installation

  1. Download SKILL.md from GitHub
  2. Place it in .claude/skills/angular-state-management/SKILL.md inside your project
  3. Restart your AI agent — it will auto-discover the skill

How angular-state-management Compares

Feature / Agentangular-state-managementStandard Approach
Platform SupportNot specifiedLimited / Varies
Context Awareness High Baseline
Installation ComplexityUnknownN/A

Frequently Asked Questions

What does this skill do?

Implement application state with Angular Signals, computed derivations, and NgRx Signal Store. Use when implementing reactive state with signal(), computed(), effect(), or @ngrx/signals in Angular. (triggers: **/*.store.ts, **/state/**, angular signals, signal store, computed, effect, linkedSignal)

Where can I find the source code?

You can find the source code on GitHub using the link provided at the top of the page.

SKILL.md Source

# State Management

## **Priority: P1 (HIGH)**

## 1. Use Signals for All State

- Keep internal signals private; expose publicly via `asReadonly()`.

See [signal store pattern](references/signal-store.md) for signal-based service and store examples.

## 2. Derive State with computed()

- Use `computed()` for totals, filtered lists, and other derived values — it is pure and cached.
- Use `linkedSignal(() => source())` for dependent writable state that resets when source changes.
- Use `untracked()` to read a signal inside `computed()`/`effect()` without creating a dependency.

## 3. Scale with Signal Store

- For complex features, use `@ngrx/signals` (`signalStore`) with `withState`, `withComputed`, `withMethods`, and `withEntities()`.

## 4. Handle Side Effects

- Use `effect()` only for side effects (logging, localStorage sync, DOM manipulation).
- **Never update signals inside effect()** — causes circular dependencies.
- Treat signal values as immutable — update with `.set()` or `.update(v => ...)`.

## Anti-Patterns

- **No state logic in components**: Delegate to a Signal Store or Service.
- **No `BehaviorSubject` for state**: Use Signals; keep RxJS only for complex event streams.

## References

- [Signal Store Pattern](references/signal-store.md)

Related Skills

swift-memory-management

385
from HoangNguyen0403/agent-skills-standard

Prevent retain cycles via ARC, weak/unowned references, and Capture Lists in Swift. Use when managing Swift ARC, avoiding retain cycles, or configuring capture lists in closures. (triggers: **/*.swift, weak, unowned, capture, deinit, retain)

react-state-management

385
from HoangNguyen0403/agent-skills-standard

Select and implement local, global, and server state patterns in React. Use when choosing or implementing state management (Context, Zustand, Redux, React Query) in React. (triggers: **/*.tsx, **/*.jsx, state, useReducer, context, store, props)

react-native-state-management

385
from HoangNguyen0403/agent-skills-standard

Implement local and global state with Context, Zustand, and Redux Toolkit in React Native. Use when choosing or implementing state management in React Native with Context, Zustand, or Redux. (triggers: **/*.tsx, **/*.ts, useState, useContext, zustand, redux, state-management)

nextjs-state-management

385
from HoangNguyen0403/agent-skills-standard

Apply best practices for managing URL, server, and client state in Next.js applications. Use when choosing between URL params, SWR/TanStack Query, Zustand, or Context for state, or when fixing hydration mismatches from localStorage. (triggers: **/hooks/*.ts, **/store.ts, **/components/*.tsx, useState, useContext, zustand, redux)

ios-state-management

385
from HoangNguyen0403/agent-skills-standard

Implement reactive state with Combine, Observation framework, and UDF patterns. Use when implementing state management with Combine, @Observable, or reactive patterns in iOS. (triggers: **/*.swift, Observable, @Published, PassthroughSubject, @Observable, @Namespace)

flutter-riverpod-state-management

385
from HoangNguyen0403/agent-skills-standard

Implement reactive state management using Riverpod 2.0 with code generation in Flutter. Use when defining @riverpod providers, building AsyncNotifiers, overriding providers in tests, or enforcing immutable state with Freezed models. (triggers: **_provider.dart, **_notifier.dart, riverpod, ProviderScope, ConsumerWidget, Notifier, AsyncValue, ref.watch, @riverpod)

flutter-getx-state-management

385
from HoangNguyen0403/agent-skills-standard

Implement reactive state with GetX controllers and observables in Flutter. Use when managing reactive state with GetX controllers or observables in Flutter. (triggers: **_controller.dart, **/bindings/*.dart, GetxController, Obx, GetBuilder, .obs, Get.put, Get.find, Get.lazyPut)

flutter-bloc-state-management

385
from HoangNguyen0403/agent-skills-standard

Implement BLoC/Cubit state management correctly in Flutter. Use when writing, modifying, reviewing, or testing any BLoC, Cubit, state, or event Dart file — even for small changes. (triggers: **_bloc.dart, **_cubit.dart, **_state.dart, **_event.dart, BlocProvider, BlocBuilder, BlocListener, Cubit, Emitter)

angular-tooling

385
from HoangNguyen0403/agent-skills-standard

Angular CLI usage, code generation, build configuration, and bundle optimization. Use when creating Angular projects, generating components/services/guards, configuring builds, running tests, or analyzing bundles. (triggers: angular.json, ng generate, ng build, ng serve, ng test, ng add, angular cli, bundle analysis)

angular-testing

385
from HoangNguyen0403/agent-skills-standard

Write Angular component tests using TestBed, ComponentHarness, and HttpTestingController with proper signal input handling. Use when writing component tests, mocking HTTP calls, or testing signal inputs. (triggers: **/*.spec.ts, TestBed, ComponentFixture, TestHarness, provideHttpClientTesting)

angular-style-guide

385
from HoangNguyen0403/agent-skills-standard

Naming conventions, file structure, and coding standards for Angular projects. Use when naming Angular files, organizing project structure, or following Angular style guide. (triggers: angular style, naming convention, file structure, angular-style-guide)

angular-ssr

385
from HoangNguyen0403/agent-skills-standard

Implement Angular SSR with hydration, TransferState caching, and per-route render modes. Use when configuring Angular Universal SSR, client hydration, static prerendering, or preventing double-fetching. (triggers: **/*.server.ts, server.ts, hydration, transferState, afterNextRender, isPlatformServer, RenderMode)