frontend-react

frontend-react is a skill for Claude Code, Codex from Devdannnny/chisel. It costs 144 tokens per session (2,089 once invoked), scanned A, original, MIT.

A set of instructions for building React frontends with tools such as Vite or Create React App, without using Next.js. React is a JavaScript library for building user interfaces.

In plain words
What is it for?
Use it for React pages, components, and interfaces in Vite, Create React App, or non-App-Router Remix projects.
Why use it?
It helps an agent choose suitable React patterns and follow the project's existing design system when creating screens or components.

Skill for Claude CodeCodex

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

Good fit Use it for React pages, components, and interfaces in Vite, Create React App, or non-App-Router Remix projects.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/devdannnny/chisel/react
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 Devdannnny/chisel --skill react
Clone the repo
git clone --depth 1 https://github.com/Devdannnny/chisel

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-react

README.md
[![agentmods](https://agentmods.dev/badge/skills/devdannnny/chisel/react/github.svg)](https://agentmods.dev/skills/devdannnny/chisel/react)
Your own site
<a href="https://agentmods.dev/skills/devdannnny/chisel/react"><img src="https://agentmods.dev/badge/skills/devdannnny/chisel/react/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-react

Your own site · 80×15
<a href="https://agentmods.dev/skills/devdannnny/chisel/react"><img src="https://agentmods.dev/badge/skills/devdannnny/chisel/react.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 144 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,089 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 $0.00144 $0.02089
Opus 5.5 $0.00058 $0.00836
Sonnet 5.5 $0.00029 $0.00418
Haiku 4.5 $0.00014 $0.00209

Measured 1mo ago against content hash e6d7865c5f4a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

frontend-react 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.

skills/frontend/react/SKILL.md · 220 lines

How it starts

The opening of the file, as written. The whole thing — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Frontend — React (Vite, CRA, non-Next)

Production-grade, distinctive React UI built outside Next.js — typically Vite + React. Opinionated, brand-correct, free of "AI slop" aesthetics. Built on the Prompt Architecture Standard (PAS) and the canonical design language at ../shared-rules.md.

Pre-flight (run BEFORE writing any code)

  1. READ ../shared-rules.md FIRST. Canonical design language. This SKILL.md assumes you have those rules in context.
  2. Check for screenshots/ in the codebase root. Use as design references if present.
  3. Confirm questionnaire.md is answered. Walk through it if not.
  4. Identify the build tool. Vite (preferred for new), CRA (legacy), Remix (non-App-Router), other.
  5. Identify the surface — see surface-specific defaults in ../shared-rules.md.
  6. Identify existing design system. Preserve it. The rules apply to greenfield work.

Role

You are a senior React engineer with strong design taste. You ship distinctive UI in Vite-based React, you know modern React 18 patterns (useDeferredValue, startTransition), and you don't reach for useMemo unless you've measured a problem.

Objective

Produce React UI that passes every litmus check in ../shared-rules.md — visually distinctive, brand-correct, technically sound, impossible to mistake for a stock Vite template — on the first generation.

Quick reference (full rules in ../shared-rules.md)

Memory aid only. Apply ALL rules from shared-rules.md:

  • One composition. Brand first. Brand test.
  • Distinctive Google Fonts via @fontsource/* — NOT Inter, NOT Roboto.
  • No flat backgrounds. One accent. CSS variables.
  • Full-bleed hero only. Hero budget: brand + headline + line + CTA + image.
  • No cards by default. Cards only when card IS the interaction.
  • 2–3 intentional motions (Framer Motion).
  • Real visual anchor. No abstract gradient blobs.
  • Both light and dark polished.
  • Delete 30% of copy.

Read the full file on GitHub · 220 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. 1mo ago First seen · 220 lines · 144 tokens per session scan A e6d7865c5f4a

Subscribe to this mod's changes

frontend-react is a skill published in the GitHub repository Devdannnny/chisel (3 stars, last pushed 3mo ago), licensed MIT. It adds 144 tokens to every session and 2,089 once invoked, about $0.0006 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 2026-08-31.

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