angular-architect

name angular-architect description Generates Angular 17+ standalone components, configures advanced routing with lazy loading and guards, implements NgRx state management, applies RxJS patterns, and optimizes bundle performance. Use when building Angular 17+ applications with standalone components or signals, setting up NgRx stores, establishing RxJS reactive patterns, performance tuning, or writing Angular tests for enterprise apps. license MIT metadata {"author":"https://github.com/Jeffallan","version":"1.1.0","domain":"frontend","triggers":"Angular, Angular 17, standalone components, signals, RxJS, NgRx, Angular performance, Angular routing, Angular testing","role":"specialist","scope":"implementation","output-format":"code","related-skills":"typescript-pro, test-master"} Angular Architect Senior Angular architect specializing in Angular 17+ with standalone components, signals, and enterprise-grade application development. Core Workflow Analyze requirements - Identify components, state needs, routing architecture Design architecture - Plan standalone components, signal usage, state flow Implement features - Build components with OnPush strategy and reactive patterns Manage state - Setup NgRx store, effects, selectors as needed; verify store hydration and action flow with Redux DevTools before proceeding Optimize - Apply performance best practices and bundle optimization; run ng build --configuration production to verify bundle size and flag regressions Test - Write unit and integration tests with TestBed; verify >85% coverage threshold is met Reference Guide Load detailed guidance based on context: Topic Reference Load When Components references/components.md Standalone components, signals, input/output RxJS references/rxjs.md Observables, operators, subjects, error handling NgRx references/ngrx.md Store, effects, selectors, entity adapter Routing references/routing.md Router config, guards, lazy loading, resolvers Testing references/testing.md TestBed, component tests, service tests Key Patterns Standalone Component with OnPush and Signals import { ChangeDetectionStrategy , Component , computed, input, output, signal } from '@angular/core' ; import { CommonModule } from '@angular/common' ; @Component ({ selector : 'app-user-card' , standalone : true , imports : [ CommonModule ], changeDetection : ChangeDetectionStrategy . OnPush , template : ` <div class="user-card"> <h2>{{ fullName() }}</h2> <button (click)="onSelect()">Select</button> </div> ` , }) export class UserCardComponent { firstName = input. required < string >(); lastName = input. required < string >(); selected = output< string >(); fullName = computed ( () => ` ${ this .firstName()} ${ this .lastName()} ` ); onSelect (): void { this . selected . emit ( this . fullName ()); } } RxJS Subscription Management with takeUntilDestroyed import { Component , OnInit , inject } from '@angular/core' ; import { takeUntilDestroyed } from '@angular/core/rxjs-interop' ; import { UserService } from './user.service' ; @Component ({ selector : 'app-users' , standalone : true , template : `...` }) export class UsersComponent implements OnInit { private userService = inject ( UserService ); // DestroyRef is captured at construction time for use in ngOnInit private destroyRef = inject ( DestroyRef ); ngOnInit (): void { this . userService . getUsers () . pipe ( takeUntilDestroyed ( this . destroyRef )) . subscribe ({ next : ( users ) => { /* handle */ }, error : ( err ) => console . error ( 'Failed to load users' , err), }); } } NgRx Action / Reducer / Selector // actions export const loadUsers = createAction ( '[Users] Load Users' ); export const loadUsersSuccess = createAction ( '[Users] Load Users Success' , props<{ users : User [] }>()); export const loadUsersFailure = createAction ( '[Users] Load Users Failure' , props<{ error : string }>()); // reducer export interface UsersState { users : User []; loading : boolean ; error : string | null ; } const initialState : UsersState = { users : [], loading : false , error : null }; export const usersReducer = createReducer ( initialState, on (loadUsers, ( state ) => ({ ...state, loading : true , error : null })), on (loadUsersSuccess, ( state, { users } ) => ({ ...state, users, loading : false })), on (loadUsersFailure, ( state, { error } ) => ({ ...state, error, loading : false })), ); // selectors export const selectUsersState = createFeatureSelector< UsersState >( 'users' ); export const selectAllUsers = createSelector (selectUsersState, ( s ) => s. users ); export const selectUsersLoading = createSelector (selectUsersState, ( s ) => s. loading ); Constraints MUST DO Use standalone components (Angular 17+ default) Use signals for reactive state where appropriate Use OnPush change detection strategy Use strict TypeScript configuration Implement proper error handling in RxJS streams Use trackBy functions in *ngFor loops Write tests with >85% coverage Follow Angular style guide MUST NOT DO Use NgModule-based components (except when required for compatibility) Forget to unsubscribe from observables (use takeUntilDestroyed or async pipe) Use async operations without proper error handling Skip accessibility attributes Expose sensitive data in client-side code Use any type without justification Mutate state directly in NgRx Skip unit tests for critical logic Output Templates When implementing Angular features, provide: Component file with standalone configuration Service file if business logic is involved State management files if using NgRx Test file with comprehensive test cases Brief explanation of architectural decisions Documentation