Comprehensive performance optimization guide for Angular 20+ applications with modern features like Signals, httpResource, signal inputs/outputs, @defer blocks, and native control flow syntax. Contains 35+ rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.
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node --versionangular-best-practices-v20Execute the skills CLI command in your project's root directory to begin installation:
Fetches angular-best-practices-v20 from develite98/angular-best-practices and configures it for Cursor.
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Restart Cursor to activate angular-best-practices-v20. Access via /angular-best-practices-v20 in your agent's command palette.
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Create detailed user stories, acceptance criteria, and feature specs
Example
Generate user stories for 'password reset feature' with acceptance criteria, edge cases, and test scenarios
Reduce spec writing time by 50%, ensure comprehensive coverage
Research competitors, compare features, identify gaps
Example
Analyze 5 competitor products, create feature comparison matrix, suggest differentiation opportunities
Complete competitive research in 2 hours instead of 2 days
Evaluate features using frameworks (RICE, ICE, Kano) and create prioritized backlogs
Example
Score 20 feature ideas using RICE framework, generate prioritized roadmap with rationale
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Comprehensive performance optimization guide for Angular 20+ applications with modern features like Signals, httpResource, signal inputs/outputs, @defer blocks, and native control flow syntax. Contains 35+ rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.
Reference these guidelines when:
| Priority | Category | Impact | Prefix |
|---|---|---|---|
| 1 | Change Detection | CRITICAL | change- |
| 2 | Bundle & Lazy Loading | CRITICAL | bundle- |
| 3 | RxJS Optimization | HIGH | rxjs- |
| 4 | Template Performance | HIGH | template- |
| 5 | Dependency Injection | MEDIUM-HIGH | di- |
| 6 | HTTP & Caching | MEDIUM | http- |
| 7 | Forms Optimization | MEDIUM | forms- |
| 8 | General Performance | LOW-MEDIUM | ssr- |
change-signals - Use Signals instead of BehaviorSubject for reactive statechange-onpush - Use OnPush change detection strategychange-detach-reattach - Detach change detector for heavy operationschange-run-outside-zone - Run non-UI code outside NgZonecomponent-signal-io - Use signal inputs/outputs instead of @Input/@Output decoratorssignal-computed-pure - Keep computed() pure, no side effectssignal-effect-patterns - Use effect() correctly, avoid anti-patternssignal-linkedsignal - Use linkedSignal for derived + writable statebundle-standalone - Use standalone components (default in v20+)bundle-lazy-routes - Lazy load routes with loadComponent/loadChildrenbundle-defer - Use @defer blocks for heavy componentsbundle-preload - Preload routes on hover/focus for perceived speedbundle-no-barrel-imports - Avoid barrel files, use direct importsrxjs-async-pipe - Use async pipe instead of manual subscriptionsrxjs-takeuntil - Use takeUntilDestroyed for automatic cleanuprxjs-share-replay - Share observables to avoid duplicate requestsrxjs-operators - Use efficient RxJS operatorsrxjs-mapping-operators - Use correct mapping operators (switchMap vs exhaustMap)rxjs-no-nested-subscribe - Avoid nested subscriptionstemplate-trackby - Use track function in @for loops (required in v20+)template-pure-pipes - Use pure pipes for expensive transformationstemplate-ng-optimized-image - Use NgOptimizedImage for image optimizationtemplate-no-function-calls - Avoid function calls in templatestemplate-virtual-scroll - Use virtual scrolling for large listsdi-provided-in-root - Use providedIn: 'root' for singleton servicesdi-injection-token - Use InjectionToken for non-class dependenciesdi-factory-providers - Use factory providers for complex initializationdirective-host-composition - Use hostDirectives for compositionhttp-resource - Use httpResource/resource for signal-based data fetchinghttp-interceptors - Use functional interceptors for cross-cutting concernshttp-transfer-state - Use TransferState for SSR hydrationrouting-signal-inputs - Use signal-based route inputsforms-reactive - Use reactive forms with typed FormGroupssr-hydration - Use incremental hydration with @defer (hydrate on ...)perf-memory-leaks - Prevent memory leaks (timers, listeners, subscriptions)perf-web-workers - Offload heavy computation to Web Workersarch-smart-dumb-components - Use Smart/Dumb component patternRead individual rule files for detailed explanations and code examples:
rules/change-signals.md
rules/bundle-defer.md
rules/http-resource.md
Each rule file contains:
For the complete guide with all rules expanded: AGENTS.md
Make data-driven prioritization decisions faster
Draft PRDs, status updates, and stakeholder presentations
Example
Create executive summary of Q3 roadmap, monthly progress report, feature launch announcement
Save 3-5 hours/week on communication overhead
Prerequisites
Time Estimate
30-60 minutes to see productivity improvements
Steps
Common Pitfalls
✓ Do
✗ Don't
💡 Pro Tips
✓ Use when
Use for user story writing, competitive research, roadmap prioritization, stakeholder communication, and PRD drafting. Best for reducing repetitive documentation and research work.
✗ Avoid when
Avoid for strategic product vision (requires deep customer empathy), pricing decisions (needs market and financial expertise), or when face-to-face customer discovery is more valuable than speed.
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I recommend angular-best-practices-v20 for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
We added angular-best-practices-v20 from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
angular-best-practices-v20 reduced setup friction for our internal harness; good balance of opinion and flexibility.
Useful defaults in angular-best-practices-v20 — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
Registry listing for angular-best-practices-v20 matched our evaluation — installs cleanly and behaves as described in the markdown.
Keeps context tight: angular-best-practices-v20 is the kind of skill you can hand to a new teammate without a long onboarding doc.
Solid pick for teams standardizing on skills: angular-best-practices-v20 is focused, and the summary matches what you get after install.
We added angular-best-practices-v20 from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
angular-best-practices-v20 fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
angular-best-practices-v20 is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
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