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.
npx agentmods add skills/radix-ng/primitives/angular-developernpx skills add radix-ng/primitives --skill angular-developergit clone --depth 1 https://github.com/radix-ng/primitivesWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00114 | $0.01151 |
| Opus 5 | $0.00057 | $0.00575 |
| Sonnet 5 | $0.00023 | $0.00230 |
| Haiku 4.5 | $0.00011 | $0.00115 |
Grade A, and why
angular-developer 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.
How it starts
The opening of the file, as written. The whole thing — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Angular Developer Guidelines (library edition)
This is the Radix NG primitives library — a signals-first, headless set of Angular directives,
not an application. Use these references for authoritative Angular framework details; for anything
repo-specific (build/test commands, naming, the createContext DI pattern, story conventions, the
CDK phase-out, the ngOn*-hook lint rule) CLAUDE.md and .claude/skills/project-knowledge take
precedence.
Working rules:
- Check the Angular version first (
packages/primitives/package.jsonpeers — currently Angular 21). Feature availability and best practice vary across versions. - Tooling is Nx + pnpm, not the Angular CLI. Do not run
ng new/ng generate/ng build. Scaffold by hand following the new-primitive checklist in CLAUDE.md, and verify withpnpm primitives:build/pnpm primitives:test. - Prefer signals end to end (
input(),output(),model(),computed(),linkedSignal(),effect()), and the constructor /DestroyRef/afterNextRenderoverngOn*lifecycle hooks (see the Lifecycle section of CLAUDE.md andpatterns.md).
Reactivity and state
The core of this library. Consult:
- Signals overview:
signal,computed, reactive contexts,untracked. Read signals-overview.md linkedSignal: writable state derived from source signals (used widely, e.g. the CVA value source). Read linked-signal.mdeffect/ side effects: third-party DOM,afterRenderEffect, and when NOT to use effects. Read effects.md
Components and directives
Authoring patterns for the directive parts and the few component-based parts:
- Components fundamentals: anatomy, metadata, control flow (
@if/@for/@switch). Read components.md - Inputs: signal inputs, transforms,
modelinputs. Read inputs.md - Outputs: signal outputs and custom-event best practices. Read outputs.md
- Host elements: host bindings and attribute injection (every primitive exposes state via
host+data-*). Read host-elements.md
What ships with it
14 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.
- references/angular-aria.md 18 KB
- references/components.md 3.3 KB
- references/defining-providers.md 2.2 KB
- references/di-fundamentals.md 3.4 KB
- references/effects.md 2.7 KB
- references/hierarchical-injectors.md 2.1 KB
- references/host-elements.md 2.1 KB
- references/injection-context.md 1.9 KB
- references/inputs.md 2.4 KB
- references/linked-signal.md 2.6 KB
- references/outputs.md 2.6 KB
- references/signal-forms.md 26 KB
- references/signals-overview.md 2.8 KB
- references/testing-fundamentals.md 2.5 KB
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.
- yesterday First seen · 72 lines · 114 tokens per session scan A 1ffe41762d7b
angular-developer is a skill published in the GitHub repository radix-ng/primitives (269 stars, last pushed 7d ago), licensed MIT. It adds 114 tokens to every session and 1,151 once invoked, about $0.0006 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 2026-08-30.
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