angular-expert

angular-expert is a skill for Claude Code from personamanagmentlayer/pcl. It costs 67 tokens per session (1,162 once invoked), scanned A, original, Apache-2.0.

A practical guide to building Angular web applications with RxJS, TypeScript, dependency injection, and enterprise application patterns. It covers components, services, routing, reactive data streams, and newer Angular features.

In plain words
What is it for?
Use it to create or modify Angular components, services, routes, forms, and reactive data flows. It can also help with TypeScript design, dependency injection, lazy loading, and Angular testing.
Why use it?
It gives a coding agent the Angular concepts needed to make appropriate changes instead of treating the project as generic frontend code. It also helps avoid common problems with asynchronous data, subscriptions, and application structure.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

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/personamanagmentlayer/pcl/angular-expert
Any agent
npx skills add personamanagmentlayer/pcl --skill angular-expert
Clone the repo
git clone --depth 1 https://github.com/personamanagmentlayer/pcl

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for angular-expert

README.md
[![agentmods](https://agentmods.dev/badge/skills/personamanagmentlayer/pcl/angular-expert.svg)](https://agentmods.dev/skills/personamanagmentlayer/pcl/angular-expert)
Your own site
<a href="https://agentmods.dev/skills/personamanagmentlayer/pcl/angular-expert"><img src="https://agentmods.dev/badge/skills/personamanagmentlayer/pcl/angular-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,162 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 5.1 $0.00067 $0.01162
Opus 5 $0.00034 $0.00581
Sonnet 5 $0.00013 $0.00232
Haiku 4.5 $0.00007 $0.00116

Measured yesterday against content hash e6bdf5fb72ff, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

angular-expert 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 yesterday.

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.

stdlib/frameworks/angular-expert/SKILL.md · 195 lines

How it starts

The opening of the file, as written. The whole thing — 195 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Angular Expert

You are an expert in Angular framework, specializing in RxJS reactive programming, TypeScript, dependency injection, and building scalable enterprise applications.

Core Concepts

Angular Fundamentals

  • Component Architecture: Modular UI building blocks
  • Templates: Declarative view definitions
  • Dependency Injection: Hierarchical DI system
  • Modules: Feature organization (NgModules)
  • Services: Business logic and data
  • Directives: DOM manipulation

RxJS Integration

  • Observables: Async data streams
  • Operators: Transform and combine streams
  • Subjects: Multicasting observables
  • Subscription Management: Memory leak prevention
  • Error Handling: Catch and retry strategies
  • Testing: Marble testing

TypeScript

  • Strong Typing: Type safety throughout
  • Interfaces: Contract definitions
  • Decorators: Metadata annotations
  • Generics: Type-safe reusable code
  • Enums: Named constants
  • Type Guards: Runtime type checking

Advanced Features

  • Standalone Components: Module-free architecture
  • Signals: Fine-grained reactivity
  • Change Detection: OnPush strategy
  • Lazy Loading: Code splitting
  • Guards: Route protection
  • Interceptors: HTTP middleware

Best Practices

Component Design

  • Use OnPush change detection for performance
  • Keep components focused and small
  • Extract business logic to services
  • Use smart/dumb component pattern
  • Implement proper unsubscription
  • Leverage standalone components (Angular 14+)

RxJS Management

  • Always unsubscribe from observables
  • Use async pipe in templates
  • Prefer higher-order operators
  • Handle errors appropriately
  • Use shareReplay for expensive operations
  • Avoid nested subscriptions

TypeScript

  • Enable strict mode
  • Define interfaces for all data structures
  • Use enums for constants
  • Leverage type guards
  • Use generics for reusable code
  • Add JSDoc comments for complex types

Read the full file on GitHub · 195 lines

Files

What ships with it

1 file 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. yesterday First seen · 195 lines · 67 tokens per session scan A e6bdf5fb72ff

Subscribe to this mod's changes

angular-expert is a skill published in the GitHub repository personamanagmentlayer/pcl (41 stars, last pushed yesterday), licensed Apache-2.0. It adds 67 tokens to every session and 1,162 once invoked, about $0.0003 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 2026-09-05.

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