angular-dev

An Angular 17+ development guide for building web interfaces, managing application data, and connecting them to .NET web APIs.

In plain words
What is it for?
Use it to create components and services, manage state with Signals or NgRx, handle HTTP requests, connect to .NET APIs, and write Angular tests.
Why use it?
It gives consistent patterns for newer Angular features, data flow, testing, and backend communication instead of requiring developers to decide each approach from scratch.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/cuongtl1992/vibe-skills/angular-dev
Any agent
npx skills add cuongtl1992/vibe-skills --skill angular-dev
Clone the repo
git clone --depth 1 https://github.com/cuongtl1992/vibe-skills

Made for: Claude Code, Codex.

Per session 134 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,502 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00134 $0.01502
Opus 5 $0.00067 $0.00751
Sonnet 5 $0.00027 $0.00300
Haiku 4.5 $0.00013 $0.00150

Measured 3d ago against content hash b0e347424742, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

angular-dev scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/frontend/angular-dev/SKILL.md · 222 lines

How it starts

The opening of the file, as written. The whole thing — 222 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Angular Dev

Angular 17+ development guide — Standalone Components, Signals, NgRx, and .NET backend integration.

Stack assumptions

  • Angular 17+ — Standalone Components (no NgModules by default)
  • State: Signals for local/simple state, NgRx Signal Store for feature state
  • HTTP: HttpClient with typed responses, interceptors for auth
  • Backend: .NET Web API (RESTful, likely following BE CQRS pattern)
  • Styling: SCSS, standalone imports
  • Testing: Jest (or Jasmine) + Angular Testing Library

Quick reference — when to read which file

Task Read
Build components, templates, directives references/component-patterns.md
NgRx Signal Store, Signals, state design references/state-management.md
HTTP service, interceptors, .NET integration references/backend-integration.md

Core principles

1. Standalone-first

Always generate standalone components unless user explicitly requests NgModule.

@Component({
  selector: 'app-product-list',
  standalone: true,
  imports: [CommonModule, RouterModule],
  templateUrl: './product-list.component.html',
})
export class ProductListComponent { }

2. Signals for local state

Use signal() and computed() instead of class properties + manual change detection.

export class CartComponent {
  items = signal<CartItem[]>([]);
  total = computed(() => this.items().reduce((s, i) => s + i.price, 0));

  addItem(item: CartItem) {
    this.items.update(current => [...current, item]);
  }
}

3. Typed HTTP — always

Every API call must have a typed response interface matching the .NET DTO.

// ✅ typed
this.http.get<ProductDto[]>('/api/products')

// ❌ avoid
this.http.get<any>('/api/products')

4. Inject function over constructor DI

// ✅ Angular 17+ style
export class ProductService {
  private http = inject(HttpClient);
  private store = inject(ProductStore);
}

Feature structure (lazy-loaded)

Read the full file on GitHub · 222 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 222 lines · 134 tokens per session scan A b0e347424742

Subscribe to this mod's changes

angular-dev is a skill published in the GitHub repository cuongtl1992/vibe-skills (10 stars, last pushed 5mo ago), licensed MIT. It adds 134 tokens to every session and 1,502 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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