frontend-skills: Instructions file for Claude Code

CLAUDE.md

frontend-skills CLAUDE.md is an instructions file for Claude Code from rungchan2/frontend-skills. It costs 1,457 tokens per session, scanned A, original, Apache-2.0.

A project instruction file describing how a Claude Code plugin repository is organized and published. It explains the marketplace, plugin folders, skills, installation, and related project conventions.

In plain words
What is it for?
Use it when developing, organizing, documenting, or registering skills and plugins in the frontend-skills repository.
Why use it?
It gives an agent the repository context needed to place files correctly and follow the project’s installation and marketplace process.

Instructions file for Claude Code

Written for Claude Code: Claude Code plugin machinery. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is rungchan2/frontend-skills's own configuration. It tells Claude Code how to work on frontend-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything frontend-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to rungchan2/frontend-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/rungchan2/frontend-skills/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/rungchan2/frontend-skills

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.

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README.md
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Your own site
<a href="https://agentmods.dev/instructions/rungchan2/frontend-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/rungchan2/frontend-skills/claude-md/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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/rungchan2/frontend-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/rungchan2/frontend-skills/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,457 This file is loaded in full into every session.
When invoked 1,457 The same file — it is already loaded in full.
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 $0.01457 $0.01457
Opus 5 $0.00728 $0.00728
Sonnet 5 $0.00291 $0.00291
Haiku 4.5 $0.00146 $0.00146

Measured 9d ago against content hash 6502e6925aec, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

frontend-skills CLAUDE.md 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.

CLAUDE.md · 116 lines

How it starts

The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Project Overview

Claude Code Plugin 레포지토리. AI 에이전트(Claude Code)의 기능을 확장하는 커스텀 스킬을 개발하고 마켓플레이스로 배포한다.

레포 구조

이 레포는 마켓플레이스 — 각 플러그인이 목적별로 그룹화되어 있고, 그 안에 여러 스킬을 담는다. 사용자는 원하는 플러그인만 골라 설치한다.

frontend-skills/
├── .claude-plugin/
│   └── marketplace.json          # 마켓플레이스 레지스트리
├── skills/                       # 각 디렉토리가 하나의 플러그인
│   ├── supabase/                 # 그룹 플러그인 예시:
│   │   ├── .claude-plugin/
│   │   │   └── plugin.json       #   플러그인 매니페스트
│   │   └── skills/
│   │       └── initial-setting/  #   플러그인 안의 스킬
│   │           ├── SKILL.md
│   │           └── scripts/
│   ├── project-packages/         # setup-all, tailwind-cn, dayjs-kst, supabase-clients, tanstack-query, zustand-store, form-validation, package-map
│   ├── spec-generator/           # prd, tech-stack, design-system, mvp-roadmap
│   ├── claudemd/                 # builder, refactoring
│   ├── guide-maker/              # 단독 (Notion MCP 포함)
│   ├── project-scaffolder/       # 단독
│   ├── web-to-markdown/          # 단독
│   └── e2e-testing/              # 단독
└── docs/                         # 참고 문서

설치 방식

# 마켓플레이스 등록
/plugin marketplace add heechan/frontend-skills

# 원하는 플러그인 골라 설치
/plugin install supabase@frontend-skills
/plugin install spec-generator@frontend-skills
/plugin install claudemd@frontend-skills

Plugin / Skill 구조

각 플러그인은 plugin.json 매니페스트와 skills/ 하위 디렉토리를 가진다:

plugin-name/                      # 플러그인 루트
├── .claude-plugin/
│   └── plugin.json               # 플러그인 매니페스트 (필수)
└── skills/
    └── skill-name/               # 스킬 디렉토리
        ├── SKILL.md              # YAML frontmatter + Markdown 지침 (필수)
        ├── scripts/              # 실행 가능 코드 (Python/Bash)
        ├── references/           # 참조 문서
        └── assets/               # 출력용 파일

호출: /{plugin-name}:{skill-name} (예: /supabase:initial-setting, /spec-generator:prd)

SKILL.md Frontmatter

---
name: skill-name                    # 소문자, 하이픈만, 64자 이하 (선택, 없으면 디렉토리명)
description: >                      # 권장. 트리거 판단 기준. 1024자 이하
  스킬 설명 및 트리거 조건.
disable-model-invocation: false     # true면 사용자만 호출 가능 (선택)
allowed-tools: Read, Grep, Glob     # 스킬 활성 시 허용 도구 (선택)
context: fork                       # fork면 서브에이전트로 실행 (선택)
agent: Explore                      # context: fork 시 에이전트 타입 (선택)
---

Read the full file on GitHub · 116 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.

  1. 9d ago First seen · 116 lines · 1,457 tokens per session scan A 6502e6925aec

Subscribe to this mod's changes

frontend-skills CLAUDE.md is an instructions file published in the GitHub repository rungchan2/frontend-skills (2 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 1,457 tokens to every session, about $0.0073 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 2026-08-31.

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