yd-frontend-build

yd-frontend-build is a skill for Claude Code from LeeYudok/agents-scaffold. It costs 73 tokens per session (2,769 once invoked), scanned C, original, MIT.

A frontend build and packaging guide for preparing web code to run as static files, inside another program, or in a container. It covers package-manager and dependency-installation rules, including pnpm workspaces.

In plain words
What is it for?
Use it to configure frontend builds, package output for hosting or embedding, keep package and lock files consistent, build workspace packages, and investigate missing native binaries after installation.
Why use it?
Build failures can come from the output target, locked dependency versions, blocked install scripts, or incorrect workspace boundaries rather than from component code. This keeps those concerns separate from React component implementation.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to configure frontend builds, package output for hosting or embedding, keep package and lock files consistent, build workspace packages, and investigate missing native binaries after installation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/leeyudok/agents-scaffold/yd-frontend-build
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 LeeYudok/agents-scaffold --skill yd-frontend-build
Clone the repo
git clone --depth 1 https://github.com/LeeYudok/agents-scaffold

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.

agentmods badge for yd-frontend-build

README.md
[![agentmods](https://agentmods.dev/badge/skills/leeyudok/agents-scaffold/yd-frontend-build/github.svg)](https://agentmods.dev/skills/leeyudok/agents-scaffold/yd-frontend-build)
Your own site
<a href="https://agentmods.dev/skills/leeyudok/agents-scaffold/yd-frontend-build"><img src="https://agentmods.dev/badge/skills/leeyudok/agents-scaffold/yd-frontend-build/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 yd-frontend-build

Your own site · 80×15
<a href="https://agentmods.dev/skills/leeyudok/agents-scaffold/yd-frontend-build"><img src="https://agentmods.dev/badge/skills/leeyudok/agents-scaffold/yd-frontend-build.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,769 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00073 $0.02769
Opus 5.5 $0.00029 $0.01108
Sonnet 5.5 $0.00015 $0.00554
Haiku 4.5 $0.00007 $0.00277

Measured today against content hash 52440a81bca9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

yd-frontend-build scanned grade C with 1 finding 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 today.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/check_bundle.py, tests/test_check_bundle.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

`rm -rf dist/assets dist/index.html` 로 이전 해시 자산만 지운다.
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.claude/skills/yd-frontend-build/SKILL.md · 187 lines

How it starts

The opening of the file, as written. The whole thing — 187 lines — stays where its author put it; the contents beside it link to each section on GitHub.

yd-frontend-build

빌드·패키징 층을 담당한다. 컴포넌트 코드는 yd-react-expert 가 맡는다.

이 문서는 모델이 이미 아는 일반론을 적지 않는다. 버전별 함정, 실측으로 확인한 사실, doksam 고유 규약, 그리고 판단이 갈리는 지점만 담는다.

0. 먼저 확정할 것

  1. 산출물이 어디로 가는가 — 정적 호스팅 / 다른 언어 바이너리에 내장(go:embed 등) / 컨테이너. 내장이면 §4 를 반드시 읽는다. 뒤늦게 바꾸면 .gitignore 와 빌드 순서가 전부 얽힌다.
  2. 폐쇄망인가 — 그렇다면 외부 CDN·폰트·원격 이미지가 0건이어야 한다(§3).
  3. 패키지 매니저 — 레포에 이미 있는 락파일을 따른다. 섞지 않는다(§1).

1. pnpm

락파일이 곧 계약이다

  • 설치는 CI·재현 환경에서 pnpm install --frozen-lockfile. 락파일이 어긋나면 조용히 올려버리는 대신 실패해야 한다.
  • 락파일을 지우고 다시 만드는 것은 "고치는" 게 아니라 의존성 트리 전체를 바꾸는 변경이다. 원인 파악 없이 삭제·재생성하지 않는다.
  • package.json 과 락파일은 항상 같은 커밋에 들어간다.

lifecycle 스크립트는 기본 차단이다

pnpm 10부터 의존성의 install 스크립트가 기본으로 실행되지 않는다. esbuild·sharp 처럼 네이티브 바이너리를 내려받는 패키지는 명시 허용이 필요하다.

// package.json
"pnpm": { "onlyBuiltDependencies": ["esbuild", "sharp"] }

증상이 "빌드는 되는데 런타임에 바이너리가 없다"로 나타나므로, 이 계열 오류를 보면 설치 로그의 차단 경고부터 확인한다. 아무거나 허용 목록에 넣지 않는다 — 임의 코드 실행이다.

워크스페이스

  • pnpm-workspace.yaml 이 패키지 경계다. 루트에는 도구만 두고 앱 의존성을 올리지 않는다.
  • 패키지 간 참조는 "workspace:*". 버전 번호를 손으로 맞추지 않는다.
  • 특정 패키지에서 실행: pnpm --filter <pkg> build. 루트에서 cd 로 들어가지 않는다.
  • 버전을 강제로 맞춰야 하면 pnpm.overrides. 단 왜 필요한지 주석을 남긴다. 근거 없는 override 는 다음 업그레이드에서 아무도 못 지운다.

npx / dlx

일회성 CLI 는 pnpm dlx <pkg>. npx 는 npm 계열 캐시를 따로 쓰므로 pnpm 레포에서 섞으면 버전이 갈린다. 다만 shadcn CLI 처럼 npx 를 전제로 문서화된 도구는 그대로 써도 된다 — 설치가 아니라 코드 생성이 목적이라 트리에 영향이 없다.

2. Vite

반드시 확인하는 설정

export default defineConfig({
  plugins: [react(), tailwindcss()],
  resolve: { alias: { "@": path.resolve(import.meta.dirname, "./src") } },
  build: {
    outDir: "dist",
    sourcemap: false,   // 배포본에 원본 코드를 싣지 않는다
    emptyOutDir: true,  // §4 에 해당하면 false
  },
  server: { proxy: { "/api": "http://localhost:9992" } },
})
  • sourcemap: false — 켜두면 배포 산출물에서 원본을 복원할 수 있다. 폐쇄망·사내 도구라도 기본은 끈다. 필요하면 별도 아티팩트로 빼고 배포물에는 넣지 않는다.
  • server.proxy — 개발 중 백엔드로 넘길 경로. 이걸 안 두면 CORS 를 열게 되고, 그 설정이 운영까지 따라간다.
  • 환경변수는 VITE_ 접두사만 클라이언트에 노출된다. 접두사 없는 값은 번들에 안 들어가고, 반대로 접두사를 붙이는 순간 공개된다 — 비밀을 넣지 않는다.
  • 하위 경로 배포면 base 를 지정한다. 안 하면 자산 경로가 루트 기준으로 깨진다.

Read the full file on GitHub · 187 lines

Files

What ships with it

3 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. today First seen · 187 lines · 73 tokens per session scan C 52440a81bca9

Subscribe to this mod's changes

yd-frontend-build is a skill published in the GitHub repository LeeYudok/agents-scaffold (36 stars, last pushed today), licensed MIT. It adds 73 tokens to every session and 2,769 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-25.