data-stock

data-stock is a skill for Claude Code from modu-ai/moai-cowork. It costs 223 tokens per session (1,854 once invoked), scanned A, original, Apache-2.0.

A lookup tool for listed stocks on KRX, the Korea Exchange. It returns company basics and daily figures such as closing price, trading volume, and market value.

In plain words
What is it for?
Use it to search Korean stocks by name or code, check KOSPI, KOSDAQ, or KONEX listings, and review a stock's daily market data.
Why use it?
It provides official daily snapshots without requiring the user to obtain an API key, while making clear that it does not show live trades or order-book prices.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the moai-analyst plugin — 7 skills, 2 agents shipped together

Good fit Use it to search Korean stocks by name or code, check KOSPI, KOSDAQ, or KONEX listings, and review a stock's daily market data.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/modu-ai/moai-cowork/data-stock
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 modu-ai/moai-cowork --skill data-stock
Clone the repo
git clone --depth 1 https://github.com/modu-ai/moai-cowork

Made for: Claude Code.

Or install moai-analyst, the plugin that ships this one along with the rest of its 7 skills, 2 agents.

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 data-stock

README.md
[![agentmods](https://agentmods.dev/badge/skills/modu-ai/moai-cowork/data-stock/github.svg)](https://agentmods.dev/skills/modu-ai/moai-cowork/data-stock)
Your own site
<a href="https://agentmods.dev/skills/modu-ai/moai-cowork/data-stock"><img src="https://agentmods.dev/badge/skills/modu-ai/moai-cowork/data-stock/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 data-stock

Your own site · 80×15
<a href="https://agentmods.dev/skills/modu-ai/moai-cowork/data-stock"><img src="https://agentmods.dev/badge/skills/modu-ai/moai-cowork/data-stock.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 223 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,854 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00223 $0.01854
Opus 5 $0.00112 $0.00927
Sonnet 5 $0.00045 $0.00371
Haiku 4.5 $0.00022 $0.00185

Measured 11d ago against content hash 98152accaf63, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

data-stock scanned grade A 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 11d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -fsS --get 'https://k-skill-proxy.nomadamas.org/v1/korean-stock/search' \
plugins/moai-analyst/skills/data-stock/SKILL.md · 157 lines

How it starts

The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.

KRX 한국 주식 검색·시세

KRX(한국거래소) 상장 종목 검색, 종목 기본정보, 일별 시세를 조회합니다. moai-coworker의 DART(공시)를 보완하는 시세 데이터로 활용합니다.

본 스킬은 NomaDamas k-skill korean-stock-search (MIT) 기반이며, upstream 설계 참고는 jjlabsio/korea-stock-mcp입니다. KRX_API_KEY는 프록시 서버에서만 관리하므로 사용자 발급 불필요.

When to use / When not to use

사용: 종목 검색(이름·코드), 종목 기본정보, 일별 종가·거래량·시가총액, KRX 공식 데이터 기반 단순 시세 조회.

사용 금지: 미국·일본·가상자산 등 비한국 주식, 실시간 체결·호가·분봉, 재무제표·공시 원문(→ DART MCP 사용), 투자 자문·매수 추천.

Inputs

  • q: 종목명/종목코드 검색어 (search endpoint)
  • market: KOSPI | KOSDAQ | KONEX
  • code: 종목코드 (보통 6자리, 예: 005930)
  • bas_dd: 기준일 YYYYMMDD (없으면 KST 오늘. 휴장일이면 최근 영업일로 재시도)
  • limit: 검색 결과 수 (기본 10, 최대 20)

Prerequisites

사용자 측 필수 시크릿 없음.

  • KSKILL_PROXY_BASE_URL (선택): self-host 시
  • 운영 측 KRX_API_KEY는 프록시 서버 환경에만 둡니다

Endpoints

GET /v1/korean-stock/search?q={검색어}&bas_dd={YYYYMMDD}
GET /v1/korean-stock/base-info?market={KOSPI|KOSDAQ|KONEX}&code={코드}&bas_dd={YYYYMMDD}
GET /v1/korean-stock/trade-info?market={KOSPI|KOSDAQ|KONEX}&code={코드}&bas_dd={YYYYMMDD}

Examples

# 종목 검색
curl -fsS --get 'https://k-skill-proxy.nomadamas.org/v1/korean-stock/search' \
  --data-urlencode 'q=삼성전자' --data-urlencode 'bas_dd=20260408'

# 종목 기본정보
curl -fsS --get 'https://k-skill-proxy.nomadamas.org/v1/korean-stock/base-info' \
  --data-urlencode 'market=KOSPI' --data-urlencode 'code=005930' \
  --data-urlencode 'bas_dd=20260408'

# 일별 시세
curl -fsS --get 'https://k-skill-proxy.nomadamas.org/v1/korean-stock/trade-info' \
  --data-urlencode 'market=KOSPI' --data-urlencode 'code=005930' \
  --data-urlencode 'bas_dd=20260408'

Response shape

검색:

{
  "items": [
    {
      "market": "KOSPI",
      "code": "005930",
      "standard_code": "KR7005930003",
      "name": "삼성전자",
      "english_name": "Samsung Electronics",
      "listed_at": "1975-06-11"
    }
  ]
}

일별 시세:

{
  "item": {
    "market": "KOSPI",
    "code": "005930",
    "base_date": "20260408",
    "name": "삼성전자",
    "close_price": 84000,
    "change_price": 1000,
    "fluctuation_rate": 1.2,
    "open_price": 83000,
    "high_price": 84500,
    "low_price": 82800,
    "trading_volume": 12345678,
    "trading_value": 1030000000000,
    "market_cap": 500000000000000
  }
}

Read the full file on GitHub · 157 lines

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. 11d ago First seen · 157 lines · 223 tokens per session scan A 98152accaf63

Subscribe to this mod's changes

data-stock is a skill published in the GitHub repository modu-ai/moai-cowork (300 stars, last pushed 7d ago), licensed Apache-2.0. It adds 223 tokens to every session and 1,854 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.