What is frontend-standards?

Standards for building the React part of an application. They define how UI services, shared design components, animations, translations, data fetching, accessibility, and isolated features should fit together.

They guide work in React renderers, including components, styling tokens, motion, internationalisation, server data queries, and accessibility.

They reduce inconsistent interfaces, duplicated service logic, inaccessible controls, and fragile feature changes.

frontend-standards — Skill for Claude Code by saeedkolivand

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.

Any agent

npx skills add saeedkolivand/ai-job-hunter-app --skill frontend-standards

Clone the repo

git clone --depth 1 https://github.com/saeedkolivand/ai-job-hunter-app

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/saeedkolivand/ai-job-hunter-app/frontend-standards/github.svg)](https://agentmods.dev/skills/saeedkolivand/ai-job-hunter-app/frontend-standards)

Your own site

<a href="https://agentmods.dev/skills/saeedkolivand/ai-job-hunter-app/frontend-standards"><img src="https://agentmods.dev/badge/skills/saeedkolivand/ai-job-hunter-app/frontend-standards/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/saeedkolivand/ai-job-hunter-app/frontend-standards"><img src="https://agentmods.dev/badge/skills/saeedkolivand/ai-job-hunter-app/frontend-standards.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,982 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00054	$0.01982
Opus 5.5	$0.00022	$0.00793
Sonnet 5.5	$0.00011	$0.00396
Haiku 4.5	$0.00005	$0.00198

Measured 1mo ago against content hash 735de7a4b23b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

frontend-standards 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 1mo 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.

.claude/skills/frontend-standards/SKILL.md · 60 lines

How it starts

The opening of the file, as written. The whole thing — 60 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Frontend standards (mostly ESLint-enforced)

Authoritative: docs/DESIGN_SYSTEM.md, docs/PATTERNS.md.

Ports & adapters (HIGH if violated)

No window.api.* in features/, routes/, components/ — use service hooks from renderer/services/ (React Query). ESLint errors on direct access.
Data fetching — React Query via service hooks only; no useState + useEffect for remote data.

React Query & async mutations (HIGH on correctness)

Invalidation must match — invalidateQueries({ queryKey }) is a prefix match; a key factory that appends a trailing undefined/optional segment (keys.x.y() → ['x','y',undefined]) will not match the typed queries (['x','y','viewed']). Fix it with the correct key: the shorter prefix (['x','y']), or a deliberate predicate — note exact: true does not fix it (an exact match on the wrong shape ['x','y',undefined] still misses ['x','y','viewed']). After a mutation, confirm the key you invalidate hits the queries that render the affected UI (#486: shipped this twice → stale viewed/saved badges).
Mutations — never show success / apply optimistic state / emit tracking events before the mutation resolves. Two cases: (a) awaited — await mutateAsync(), then run the success effects, in try/catch; (b) detached (void/fire-and-forget) — attach a .catch surfacing a fixed @ajh/translations error key (never raw err.message) and put the success effects in .then, not on the line after the call.
Nullable at the IPC boundary — guard a contract-optional/null value (a field a command may return absent) before string/array ops (.toLowerCase()/[0]/.split()).

Design system

Tokens — text-brand/bg-brand/border-brand/ring-brand; CSS vars var(--color-brand). No [#RRGGBB] in className.
Motion — import { transition } from '@ajh/ui' (.fast/.normal/.relaxed/.slow/.spring/.modal/.overlay); no inline { duration, ease }.
Primitives — @ajh/ui (Button, Input, TextArea, Dropdown, ModalShell, GlassCard, EmptyState, …). No raw <button>/<select>/<textarea> (exception: <input type="range|file|checkbox|radio|hidden">).
Imports — import @ajh/ui directly, not @/components/ui/* (except UpdateBanner).

Read the full file on GitHub · 60 lines

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.

1mo ago Changed 735de7a4b23b
1mo ago First seen · 60 lines · 54 tokens per session scan A c2d0a2f26d88

Subscribe to this mod's changes

frontend-standards is a skill published in the GitHub repository saeedkolivand/ai-job-hunter-app (62 stars, last pushed today), licensed Apache-2.0. It adds 54 tokens to every session and 1,982 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-03.

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Mobile-first Android design thinking, Jetpack Compose, Material 3 (M3), Compose Navigation 3, Compose Material 3 Adaptive layouts, StateFlow / ViewModel state management, and Android platform conventions. Synchronized with official Google Developer documentation.

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frontend-standards