I made Claude Code get Korean marketing right — 9 citation-backed skills

어나니머동 — Wed, 08 Jul 2026 00:58:23 +0000

I work with small brick-and-mortar businesses across Korea — POS systems, kiosks, that kind of thing. Most owners have no marketing help and end up burning cash bidding on the same ad keywords. So I tried the obvious thing: let an LLM handle the marketing.

It failed in a specific, dangerous way. It wasn't bad at marketing — it was confidently wrong about Korean marketing.

A few real answers it gave me:

"Send your discount text at 10pm." In Korea that violates the Network Act's night-time advertising restriction (21:00–08:00) and carries a fine.
"Allow GPTBot so you show up in ChatGPT." GPTBot is the training crawler. Search visibility is a different agent (OAI-SearchBot). Allowing the wrong one does nothing for the stated goal.
"KakaoTalk channel messages are free." Creating the channel and chatbot is free; sending messages is billed per message.

These aren't hallucinations you can catch by eye. They sound authoritative, and a non-expert owner would just do what the model said — and get fined or waste money.

So I built korean-marketing-skills: 9 Claude Code skills + 17 reference docs that pin down the facts general LLMs get wrong for the Korean market — each claim sourced to the actual statute, KISA guidance, or the vendor's official documentation.

The part that generalizes beyond Korea

Each skill is a SKILL.md that loads into Claude Code / Codex / Cursor when it's relevant.
Every non-obvious claim carries a citation and an "as-of date + verify" note — because policies and prices change. The skill effectively tells the model: here's the rule, here's the source, and here's when to double-check it.
It's not a translation of an existing English marketing pack. It's redesigned around Naver, Kakao, Baemin, 당근(Danggeun), and Korean law.

Install (Claude Code)

git clone https://github.com/gugdongbag-eng/korean-marketing-skills

Copy the skills into your ~/.claude/skills directory (details in the README).

Why make it Korean-specific?

Because that's exactly where a general model is weakest, and where a wrong answer is most expensive — legal fines, wasted ad spend. A narrow, sourced skill beats a confident general answer.

Honest caveat

This is a young project, and Korean policies and prices shift. I date every fact and genuinely welcome corrections — if you spot something stale, an issue helps everyone.

Repo (MIT): https://github.com/gugdongbag-eng/korean-marketing-skills

If the "citation-backed skill" pattern is useful to you, a star helps other people find it.

DEV Community: 어나니머동

I made Claude Code get Korean marketing right — 9 citation-backed skills

The part that generalizes beyond Korea

Install (Claude Code)

Why make it Korean-specific?

Honest caveat