frontend-auditor

frontend-auditor is a skill for Claude Code, Codex from OneDro1d/dark-factory. It costs 81 tokens per session (1,203 once invoked), scanned A, original, Apache-2.0.

A review of frontend code, the part of an application that runs in the browser or app interface. It checks security, correctness, user experience, speed, accessibility, and maintainability across common frontend frameworks.

In plain words
What is it for?
Reviewing React, Next.js, Vue, Svelte, or similar interfaces; checking accessibility; auditing performance and frontend security; and assessing UI changes.
Why use it?
It helps find broken interactions, accessibility barriers, security risks, performance problems, and visual or behavioral regressions before release.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Reviewing React, Next.js, Vue, Svelte, or similar interfaces; checking accessibility; auditing performance and frontend security; and assessing UI changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/onedro1d/dark-factory/frontend-auditor
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 OneDro1d/dark-factory --skill frontend-auditor
Clone the repo
git clone --depth 1 https://github.com/OneDro1d/dark-factory

Made for: Claude Code, Codex.

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 frontend-auditor

README.md
[![agentmods](https://agentmods.dev/badge/skills/onedro1d/dark-factory/frontend-auditor/github.svg)](https://agentmods.dev/skills/onedro1d/dark-factory/frontend-auditor)
Your own site
<a href="https://agentmods.dev/skills/onedro1d/dark-factory/frontend-auditor"><img src="https://agentmods.dev/badge/skills/onedro1d/dark-factory/frontend-auditor/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.

agentmods 80×15 button for frontend-auditor

Your own site · 80×15
<a href="https://agentmods.dev/skills/onedro1d/dark-factory/frontend-auditor"><img src="https://agentmods.dev/badge/skills/onedro1d/dark-factory/frontend-auditor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,203 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00081 $0.01203
Opus 5 $0.00041 $0.00602
Sonnet 5 $0.00016 $0.00241
Haiku 4.5 $0.00008 $0.00120

Measured 9d ago against content hash 826b4f4c9d4d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

frontend-auditor 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 9d 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-auditor/SKILL.md · 178 lines

How it starts

The opening of the file, as written. The whole thing — 178 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Frontend Auditor

Comprehensive auditor for frontend code focusing on security, correctness, UX regressions, performance, accessibility, and maintainability. All findings are grounded in actual code, components, routes, and state management patterns.

When to Use

  • Reviewing frontend code changes before merge
  • Auditing React/Next/Vue/Svelte components
  • Checking accessibility compliance
  • Performance auditing UI code
  • Security review of client-side code
  • UX regression testing after changes

Audit Workflow

On EVERY invocation, execute these steps in order:

Step 1: Detect Stack & Layout

Identify the frontend technology stack:

- Framework: React/Next.js/Vue/Svelte/Angular/etc.
- Router: React Router/Next.js App Router/Vue Router/etc.
- State management: Redux/Zustand/Jotai/Pinia/Context/etc.
- Styling: Tailwind/CSS Modules/Styled Components/Emotion/etc.
- Build tool: Vite/Webpack/Turbopack/etc.
- API layer: fetch/axios/React Query/SWR/tRPC/etc.

Identify key locations:

  • App entrypoints (main.tsx, App.tsx, _app.tsx)
  • Pages/routes directory structure
  • Shared components library
  • API client layer and hooks

Step 2: Scan Recent Changes

Review what has changed recently:

# Check working directory changes
git status
git diff --stat

# Review recent commits affecting frontend
git log --oneline -20 --all -- "src/" "app/" "pages/" "components/" "lib/"

Summarize:

  • What UI/behavior changes were introduced?
  • What components/routes were modified?
  • What possible regressions could occur?

Step 3: Build UI Map

Create a map of the touched areas:

Component Details
Routes/Screens Pages affected, navigation flows
Components UI components modified
Data Fetching API calls, queries, mutations
Forms Form handling, validation
State Local/global state changes

Step 4: Execute Audit Checklist

Audit touched components plus critical paths (auth flows, payments, user data display).

Read the full file on GitHub · 178 lines

Files

What ships with it

2 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. 9d ago First seen · 178 lines · 81 tokens per session scan A 826b4f4c9d4d

Subscribe to this mod's changes

frontend-auditor is a skill published in the GitHub repository OneDro1d/dark-factory (0 stars, last pushed today), licensed Apache-2.0. It adds 81 tokens to every session and 1,203 once invoked, about $0.0004 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 2026-09-01.

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