cc-system: Skill for Claude Code

.claude/skills/email-draft/SKILL.md

email-draft is a skill for Claude Code from greatSumini/cc-system. It costs 67 tokens per session (1,199 once invoked), scanned A, original, MIT.

A set of rules for writing short, polite business email drafts that put the main point first.

In plain words
What is it for?
Use it to draft customer, partner, or applicant emails, including replies, decisions, key details, next actions, greetings, and sign-offs.
Why use it?
It removes unnecessary explanations, repeated acknowledgements, defensive wording, and overly casual language that can make an email harder to understand.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is greatSumini/cc-system's own configuration. It tells Claude Code how to work on cc-system 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 cc-system configures →

Reuse

Borrowing it

Nothing to install: this file belongs to greatSumini/cc-system. 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/greatSumini/cc-system/main/.claude/skills/email-draft/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/greatSumini/cc-system

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 email-draft

README.md
[![agentmods](https://agentmods.dev/badge/skills/greatsumini/cc-system/email-draft/github.svg)](https://agentmods.dev/skills/greatsumini/cc-system/email-draft)
Your own site
<a href="https://agentmods.dev/skills/greatsumini/cc-system/email-draft"><img src="https://agentmods.dev/badge/skills/greatsumini/cc-system/email-draft/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 email-draft

Your own site · 80×15
<a href="https://agentmods.dev/skills/greatsumini/cc-system/email-draft"><img src="https://agentmods.dev/badge/skills/greatsumini/cc-system/email-draft.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,199 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00067 $0.01199
Opus 5.5 $0.00027 $0.00480
Sonnet 5.5 $0.00013 $0.00240
Haiku 4.5 $0.00007 $0.00120

Measured 1mo ago against content hash 44adeb03a719, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

email-draft 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.

.claude/skills/email-draft/SKILL.md · 82 lines

What it actually says

Email Draft Manner

사용자가 외부(고객·파트너·지원자)에게 보내는 메일 초안을 작성할 때 반드시 따르는 규칙.

핵심 철학: "간결하게 의도만 전달되는 메일이 좋은 메일이다." 내용이 길다고 좋은 게 아니다.

절대 규칙

  1. 핵심을 맨 앞에 — 방향/결론 한 줄로 먼저 치고, 이유는 필요한 최소 분량만.
  2. 전체 메일 분량 — 인사/맺음말 포함 5~7문단 이내. 넘어가면 쳐낸다.
  3. 상대방 내용 리프레이징 금지 — "말씀 주신 OO은 저희도 공감하며, 맞닿아 있고..." 같은 공감 풀기는 전부 AI 티가 난다. 삭제.
  4. 메타 설명 금지 — "본격적으로 ~하기 전에", "짧게 메일 드립니다" 같은 문장은 그 자체가 길이 낭비. 바로 본론.
  5. 선제 해명·방어적 부연 금지 — 안 좋은 소식(가격 유지, 거절 등)은 사실만 짧게 던지고 넘어간다. 길게 설명할수록 반박 포인트만 늘어난다. 상대가 실제로 반박해오면 그때 대응한다. 안 할 수도 있다.
  6. 격식 유지 — 짧되 정중. 구어체·축약 표현 금지.
    • ❌ "감만 주시면" → ✅ "확인해 주시면"
    • ❌ "감 좀 주세요" → ✅ "의견 주시면 감사하겠습니다"
    • ❌ "좀 어렵습니다" → ✅ "진행이 어려울 것 같습니다"

구조 체크리스트

  • 인사 (1줄)
  • 방향/결론 (1문단)
  • 필요한 경우: 핵심 포인트 또는 숫자 (1~2문단)
  • 다음 액션 (1줄)
  • 맺음말 (1줄)

초안 완성 후 점검

한 번 써놓고 각 문장에 대해 자문:

  • 이 문장이 없어도 의도가 전달되는가? → 그렇다면 삭제.
  • 공감·감사·리프레이징 섹션인가? → 의심부터 하고 삭제 고려.
  • 자기 입장 변호·해명인가? → 삭제. 상대가 물으면 그때 답한다.
  • 구어체·축약 표현이 있는가? → 정중한 표현으로 교체.

예시

Before (장황, AI 티):

OOO 팀장님, 안녕하세요. 바이브마피아클럽 최수민입니다.

내부 논의 내용과 방향성 공유해주셔서 감사합니다. 말씀 주신 "Phase 1 성과로 증명 → 이후 확산·지속 케어로 연결" 이라는 프레이밍은 저희 관점과도 정확히 맞닿아 있고, 단계적으로 가는 방향에 동의합니다.

본격적으로 개정 제안서를 준비하기 전에, 비용 레벨의 온도를 먼저 여쭙고 싶어 짧게 메일 드립니다.

다만 시간당 강연료 단가는 유지할 계획입니다. Phase 3와 이후 케어까지 단가가 동일하게 이어져, 여기서 조정하면 내부 승인 시 일관성 설명이 번거로워지는 구조여서요.

(이하 생략)

After (간결, 의도만):

OOO 팀장님, 안녕하세요.

방향 공감합니다. Phase 1을 2주 집중판으로 재설계하겠습니다.

기간·커리큘럼 축소로 총액을 맞춰 900만 원 (VAT 별도) 수준을 보고 있는데, 이 레벨이 내부 기대와 맞는지 확인해 주시면 감사하겠습니다.

개정 제안서는 월요일(4/27) 오전까지 전달드리겠습니다.

감사합니다. 최수민 드림.

차이점:

  • 리프레이징 섹션(2문단) 삭제
  • 메타 설명("본격적으로 개정 제안서를 준비하기 전에") 삭제
  • 단가 유지 해명(2문장) 삭제 — 900만이라는 숫자만으로 결과를 보여준다
  • "감만 주시면" → "확인해 주시면"
  • 총 6문단 → 5문단 (인사·맺음 포함)

Invariants

  • 메일 발송 전 반드시 사용자 컨펌을 받는다. 컨펌 없이 gmail send 실행 금지.
  • 초안은 마크다운 블록으로 보여주되 본문에 마크다운 문법(**, `, #)을 쓰지 않는다 — 실제 메일에 그대로 들어갈 평문.
  • 스레드 회신인 경우 원 제목을 유지하고 --reply-to-message-id + --quote 옵션으로 발송한다 (gmail 스킬 참조).
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 · 82 lines · 67 tokens per session scan A 44adeb03a719

Subscribe to this mod's changes

email-draft is a skill published in the GitHub repository greatSumini/cc-system (438 stars, last pushed 4mo ago), licensed MIT. It adds 67 tokens to every session and 1,199 once invoked, about $0.0003 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 2026-08-30.

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