jangbu-connect

jangbu-connect is a skill for Claude Code, Codex from kimlawtech/korean-jangbu-for. It costs 98 tokens per session (1,524 once invoked), scanned A, original, Apache-2.0.

A setup guide for connecting Korean tax, bank, card, and social-insurance data through CODEF, an external API service. It explains how users obtain their own CODEF credentials and store them locally.

In plain words
What is it for?
Use it to create CODEF credentials, choose sandbox or production access, store keys in macOS Keychain or a local environment file, and prepare API connections.
Why use it?
It helps configure automated data collection while keeping the credentials on the user's machine and following a bring-your-own-key setup.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create CODEF credentials, choose sandbox or production access, store keys in macOS Keychain or a local environment file, and prepare API connections.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kimlawtech/korean-jangbu-for/jangbu-connect
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 kimlawtech/korean-jangbu-for --skill jangbu-connect
Clone the repo
git clone --depth 1 https://github.com/kimlawtech/korean-jangbu-for

Made for: Claude Code, Codex.

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 jangbu-connect

README.md
[![agentmods](https://agentmods.dev/badge/skills/kimlawtech/korean-jangbu-for/jangbu-connect/github.svg)](https://agentmods.dev/skills/kimlawtech/korean-jangbu-for/jangbu-connect)
Your own site
<a href="https://agentmods.dev/skills/kimlawtech/korean-jangbu-for/jangbu-connect"><img src="https://agentmods.dev/badge/skills/kimlawtech/korean-jangbu-for/jangbu-connect/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 jangbu-connect

Your own site · 80×15
<a href="https://agentmods.dev/skills/kimlawtech/korean-jangbu-for/jangbu-connect"><img src="https://agentmods.dev/badge/skills/kimlawtech/korean-jangbu-for/jangbu-connect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,524 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 warn 7 Sept 2026
SkillSpector: 11 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 3
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 22
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 111
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 124
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 58
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 120
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 69
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 82
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 83
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 85
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Tool Misuse · line 124
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
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 $0.00098 $0.01524
Opus 5 $0.00049 $0.00762
Sonnet 5 $0.00020 $0.00305
Haiku 4.5 $0.00010 $0.00152

Measured 11d ago against content hash 33a7e9f24d80, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

jangbu-connect 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 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.

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.

skills/jangbu-connect/SKILL.md · 151 lines

How it starts

The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.

jangbu-connect

CODEF 자격증명 설정 가이드 스킬.

왜 CODEF인가

한국에서 홈택스·은행·카드·4대보험 데이터를 합법적·합리적 비용으로 자동 수집할 수 있는 유일한 프록시 API.

  • 한국 공공기관·금융기관 통합 API
  • 간편인증(카카오·PASS·공동인증서) 지원
  • 개인 개발자 샌드박스 무료 (월 1,000건까지)
  • 사업자등록 없어도 가입 가능

BYOK 보안 원칙

  • 스킬 제작자는 자격증명 취급 안함 — 사용자 본인 계정의 키만 사용
  • 키는 로컬에만 저장 (macOS Keychain 기본, 실패 시 ~/.jangbu/credentials.env)
  • 외부 서버 동기화 없음
  • 모든 API 호출은 사용자 자신의 비용으로 실행

인터뷰 플로우

Step 1. CODEF 계정 발급 (5분)

CODEF 자동 수집을 쓰려면 개인 개발자 키가 필요합니다.

[1] 브라우저에서 https://developer.codef.io 접속
[2] 우측 상단 "회원가입" → 이메일 인증 (사업자번호 불필요)
[3] 로그인 후 상단 "My Page" → "서비스 관리" → "신규 서비스 등록"
     - 서비스 명: 예) korean-jangbu-for
     - 서비스 구분: "개발용" 선택
     - 이용 서비스: "대한민국" · "공공" · "금융" 체크
[4] 등록 직후 표시되는
     - Client ID
     - Client Secret
     두 값을 복사해 두세요.
[5] (선택) "My Page" → "RSA Public Key" 에서 공개키 PEM도 복사해 두면
     프로덕션 API에서 비밀번호 암호화 전송이 가능해요 (샌드박스는 불필요).

준비 끝나면 Enter 누르세요.

Step 2. 자격증명 등록

아래 값을 순서대로 입력받습니다. 값은 로컬에만 저장됩니다.

Client ID:         (CODEF My Page에서 복사한 값)
Client Secret:     (CODEF My Page에서 복사한 값)
RSA Public Key:    (선택, 프로덕션 전환 시만 필요)
샌드박스 사용:      Y/n (기본 Y — 개인 체험·테스트)
Keychain 저장:     Y/n (기본 Y — 실패 시 envfile로 fallback)

입력이 끝나면 내부적으로 MCP 도구 codef_credentials_save를 호출:

codef_credentials_save(
    client_id="...",
    client_secret="...",
    public_key_pem="...",    # 선택
    sandbox=True,
    use_keyring=True,
)

Step 3. 등록 확인

codef_credentials_status

응답 예시:

{
  "CODEF_CLIENT_ID":     {"set": true, "source": "keyring", "preview": "abcd...xyz1"},
  "CODEF_CLIENT_SECRET": {"set": true, "source": "keyring", "preview": "****...****"},
  "CODEF_PUBLIC_KEY":    {"set": false, "source": null, "preview": null},
  "CODEF_SANDBOX":       {"set": true, "source": "keyring", "preview": "1"}
}

Step 4. 연결 테스트

간편인증 테스트를 할 수 있는 메뉴로 이동합니다.

[1] 홈택스 사업자등록증명 1건 발급 테스트 → /korean-jangbu-for → [F]
[2] 지금은 건너뛰기

사용자가 직접 받는 자격증명 4종

필수 용도
CODEF_CLIENT_ID 필수 OAuth 클라이언트 ID
CODEF_CLIENT_SECRET 필수 OAuth 시크릿
CODEF_PUBLIC_KEY 선택 프로덕션 비밀번호 RSA 암호화용
CODEF_SANDBOX 자동 "1"=샌드박스, "0"=운영

Read the full file on GitHub · 151 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 · 151 lines · 98 tokens per session scan A 33a7e9f24d80

Subscribe to this mod's changes

jangbu-connect is a skill published in the GitHub repository kimlawtech/korean-jangbu-for (83 stars, last pushed 13d ago), licensed Apache-2.0. It adds 98 tokens to every session and 1,524 once invoked, about $0.0005 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 2026-08-30.

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