yoonmoon

A collection of tools for editing and checking Korean writing. It can proofread spelling and grammar, improve unnatural or translated-sounding phrasing, change style and tone, and detect signs of AI-written text.

In plain words
What is it for?
Use it to polish Korean drafts, correct translation-like wording, adjust formality, prepare emails or marketing text, and inspect whether writing shows common AI patterns.
Why use it?
It helps preserve the original meaning while making Korean text clearer, more natural, and better suited to its intended audience or format.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add amondnet/yoonmoon
agentmods
npx agentmods add plugins/amondnet/yoonmoon/yoonmoon
Clone the repo
git clone --depth 1 https://github.com/amondnet/yoonmoon

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

yoonmoon 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 yesterday.

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-plugin/plugin.json · 29 lines

What it actually says

{
  "name": "yoonmoon",
  "version": "0.2.1",
  "description": "한글 글다듬기·탐지 도구 모음 — 전과정 윤문 풀코스(polish-all), AI 글 윤문(humanize), AI 작성 판별(detect), 번역투 교정(translate-polish), 맞춤법·문법 교정(proofread), 문체·톤 변환(restyle). 내용은 보존하고 문체·리듬만 다듬으며, 11대 AI 티 분류와 한국 번역학·KatFishNet(ACL 2025) 근거를 공유한다.",
  "author": {
    "name": "Minsu Lee",
    "email": "[email protected]",
    "url": "https://github.com/amondnet"
  },
  "homepage": "https://github.com/amondnet/yoonmoon",
  "repository": "https://github.com/amondnet/yoonmoon",
  "license": "MIT",
  "keywords": [
    "korean",
    "humanize",
    "ai-detector",
    "translationese",
    "proofreading",
    "tone",
    "윤문",
    "번역투",
    "맞춤법",
    "문체변환"
  ],
  "skills": [
    "./skills/"
  ]
}
Files

What ships with it

1 file beside plugin.json 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. yesterday First seen · 29 lines scan A 9b8ba43339cd

Subscribe to this mod's changes

yoonmoon is a plugin published in the GitHub repository amondnet/yoonmoon (10 stars, last pushed 11d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.