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.
npx skills add rungchan2/frontend-skills --skill package-mapgit clone --depth 1 https://github.com/rungchan2/frontend-skillsWrote 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.
[](https://agentmods.dev/skills/rungchan2/frontend-skills/package-map)<a href="https://agentmods.dev/skills/rungchan2/frontend-skills/package-map"><img src="https://agentmods.dev/badge/skills/rungchan2/frontend-skills/package-map/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.
<a href="https://agentmods.dev/skills/rungchan2/frontend-skills/package-map"><img src="https://agentmods.dev/badge/skills/rungchan2/frontend-skills/package-map.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00121 | $0.01586 |
| Opus 5 | $0.00060 | $0.00793 |
| Sonnet 5 | $0.00024 | $0.00317 |
| Haiku 4.5 | $0.00012 | $0.00159 |
Grade A, and why
package-map 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.
기능별 표준 패키지 매핑
새 기능 만들 때 "어떤 라이브러리 쓰지?"에 대한 본인 표준 답. 같은 기능에 매 프로젝트마다 다른 패키지를 골라 학습 비용이 누적되는 걸 막는다.
사용 방법
사용자가 "X 기능 만들려면 뭐 써야 해?"라고 물으면 아래 표에서 찾아 답한다. 표에 없는 기능이면 솔직히 "아직 표준 정해진 게 없다"고 답하고, 사용자가 결정한 답을 이 표에 추가하도록 제안.
인프라 / 유틸 (project-packages 스킬에서 자동 처리)
| 기능 | 표준 패키지 | 적용 스킬 |
|---|---|---|
| Tailwind className 병합 | clsx + tailwind-merge |
tailwind-cn |
| 통화 포맷 (KRW) | Intl.NumberFormat (formatCurrency 헬퍼) |
tailwind-cn |
| 날짜 처리 (KST) | dayjs + utc/timezone plugin + ko locale |
dayjs-kst |
| 클라이언트 캐싱 | @tanstack/react-query |
tanstack-query |
| 전역 상태 | zustand |
zustand-store |
| 폼 검증 | react-hook-form + zod + @hookform/resolvers |
form-validation |
| BaaS / Auth | @supabase/ssr + @supabase/supabase-js |
supabase-clients |
UI
| 기능 | 표준 패키지 | 비고 |
|---|---|---|
| 컴포넌트 라이브러리 | shadcn/ui (CLI 기반) |
Radix + Tailwind |
| 아이콘 | lucide-react |
shadcn 기본 |
| 토스트 | sonner |
shadcn 통합 잘 됨 |
| 다이얼로그 / 모달 | shadcn dialog |
Radix 기반 |
| 드롭다운 / 콤보박스 | shadcn select, command |
Radix 기반 |
| 차트 | recharts |
shadcn chart 컴포넌트 사용 |
| 테이블 (복잡) | @tanstack/react-table + shadcn table |
정렬/필터/페이지네이션 |
| 캘린더 / 날짜 선택 | shadcn calendar (react-day-picker) |
dayjs와 별개로 입력용 |
| 풀캘린더 (이벤트 뷰) | @fullcalendar/react |
일정/스케줄 화면 |
| 드래그앤드롭 | @dnd-kit/core |
react-beautiful-dnd 비추 (유지보수 중단) |
| 애니메이션 | framer-motion |
페이지 트랜지션, 마이크로 인터랙션 |
데이터 / 파일
| 기능 | 표준 패키지 | 비고 |
|---|---|---|
| 파일 업로드 (Supabase) | @supabase/storage-js (이미 supabase-js에 포함) |
RLS 정책 신경 |
| 이미지 크롭 | react-easy-crop |
|
| 이미지 압축 (클라이언트) | browser-image-compression |
업로드 전 사전처리 |
| PDF 생성 (서버) | @react-pdf/renderer |
React 컴포넌트로 PDF 렌더 |
| PDF 미리보기 | react-pdf |
viewer |
| 엑셀 생성/파싱 | xlsx (sheetjs) |
|
| CSV 파싱 | papaparse |
|
| QR 코드 | qrcode.react |
생성 |
| QR 스캔 | html5-qrcode |
카메라 입력 |
서버 / API
| 기능 | 표준 패키지 | 비고 |
|---|---|---|
| HTTP 클라이언트 (필요 시) | fetch 우선 / 복잡하면 ky |
axios 지양 |
| Cron / 스케줄링 | Vercel Cron (vercel.json) | self-hosted면 node-cron |
| 결제 (국내) | @portone/browser-sdk |
PortOne (구 아임포트) |
| 알림톡 / SMS | aligo API 직접 호출 |
|
| 이메일 | Resend (resend SDK) |
|
| Sentry | @sentry/nextjs |
에러 추적 |
| Google Analytics | @next/third-parties/google |
Next.js 공식 |
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.
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.
- 8d ago First seen · 107 lines · 121 tokens per session scan A 60ca3e15b3c4
package-map is a skill published in the GitHub repository rungchan2/frontend-skills (2 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 121 tokens to every session and 1,586 once invoked, about $0.0006 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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