Security And Hardening
penpot/penpot
Hardens code against vulnerabilities. An agent skill from penpot/penpot.
웹앱 API 보안 체크리스트. An agent skill from revfactory/harness-100.
Install API Security Checklist
$ npx skills add revfactory/harness-100 --skill api-security-checklist -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install revfactory/harness-100 api-security-checklist --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .claude/skills && cp -r skills-src/ko/16-fullstack-webapp/.claude/skills/api-security-checklist .claude/skills/api-security-checklist && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "api-security-checklist" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/16-fullstack-webapp/.claude/skills/api-security-checklist into .claude/skills/api-security-checklist/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-security-checklist", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/revfactory/harness-100/tree/main/ko/16-fullstack-webapp/.claude/skills/api-security-checklistType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add revfactory/harness-100 --skill api-security-checklist -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install revfactory/harness-100 api-security-checklist --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .agents/skills && cp -r skills-src/ko/16-fullstack-webapp/.claude/skills/api-security-checklist .agents/skills/api-security-checklist && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "api-security-checklist" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/16-fullstack-webapp/.claude/skills/api-security-checklist into .agents/skills/api-security-checklist/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-security-checklist", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add revfactory/harness-100 --skill api-security-checklist -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install revfactory/harness-100 api-security-checklist --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/ko/16-fullstack-webapp/.claude/skills/api-security-checklist .cursor/skills/api-security-checklist && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "api-security-checklist" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/16-fullstack-webapp/.claude/skills/api-security-checklist into .cursor/skills/api-security-checklist/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-security-checklist", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/revfactory/harness-100.git --path ko/16-fullstack-webapp/.claude/skills/api-security-checklist--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add revfactory/harness-100 --skill api-security-checklist -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install revfactory/harness-100 api-security-checklist --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/ko/16-fullstack-webapp/.claude/skills/api-security-checklist .gemini/skills/api-security-checklist && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "api-security-checklist" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/16-fullstack-webapp/.claude/skills/api-security-checklist into .gemini/skills/api-security-checklist/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-security-checklist", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install revfactory/harness-100 api-security-checklistInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add revfactory/harness-100 --skill api-security-checklist -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .github/skills && cp -r skills-src/ko/16-fullstack-webapp/.claude/skills/api-security-checklist .github/skills/api-security-checklist && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "api-security-checklist" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/16-fullstack-webapp/.claude/skills/api-security-checklist into .github/skills/api-security-checklist/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-security-checklist", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add revfactory/harness-100 --skill api-security-checklist -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install revfactory/harness-100 api-security-checklist --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/ko/16-fullstack-webapp/.claude/skills/api-security-checklist .opencode/skills/api-security-checklist && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "api-security-checklist" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/16-fullstack-webapp/.claude/skills/api-security-checklist into .opencode/skills/api-security-checklist/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-security-checklist", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
api-security-checklist- GitHub stars
- 1.3k
- Token cost
- ~1.1k tokens
- SKILL.md length
- 522 words
- Files
- 1
- Skills in repo
- 464
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
웹앱 API 보안 체크리스트. An agent skill from revfactory/harness-100.
- Tasks that involve Web application vulnerabilities
- SKILL.md covers 대상 에이전트, OWASP API Security Top 10 점검, 인증 (Authentication) 패턴 and 인가 (Authorization) 패턴, plus 6 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
API Security Checklist is an agent skill from revfactory/harness-100. 웹앱 API 보안 체크리스트. OWASP Top 10 기반 취약점 점검, 인증/인가 패턴, 입력 검증, Rate Limiting, CORS, CSRF, SQL Injection 방어를 제공하는 backend-dev 확장 스킬. 'API 보안', 'OWASP', '인증 구현', 'SQL Injection', 'XSS 방어', 'CORS 설정', '보안 체크리스트' 등 백엔드 보안 설계 시 사용한다. 단, 침투 테스트 수행이나 WAF 구성은 이 스킬의 범위가 아니다.
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Security, covering Web application vulnerabilities. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Web application vulnerabilities
Example prompts
- “API 보안”
- “SQL Injection”
- “XSS 방어”
- “/api-security-checklist”
What it can do on your machine
Read from SKILL.md and the folder at commit 8e8d35c. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are json).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
API Security Checklist loads about 1.1k tokens when it runs. Until then it costs about 71 tokens; SKILL.md has 522 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from revfactory/harness-100 at commit 8e8d35c, republished under its Apache-2.0 licence (© revfactory). 522 words, ~1,083 tokens.
Download SKILL.mdSave it as
.claude/skills/api-security-checklist/SKILL.md (or your agent's skills folder).- name
- api-security-checklist
- description
- 웹앱 API 보안 체크리스트. OWASP Top 10 기반 취약점 점검, 인증/인가 패턴, 입력 검증, Rate Limiting, CORS, CSRF, SQL Injection 방어를 제공하는 backend-dev 확장 스킬. 'API 보안', 'OWASP', '인증 구현', 'SQL Injection', 'XSS 방어', 'CORS 설정', '보안 체크리스트' 등 백엔드 보안 설계 시 사용한다. 단, 침투 테스트 수행이나 WAF 구성은 이 스킬의 범위가 아니다.
API Security Checklist — 웹앱 API 보안 체크리스트
backend-dev 에이전트가 API 개발 시 활용하는 OWASP 기반 보안 체크리스트, 인증 패턴, 방어 코드 가이드.
대상 에이전트
backend-dev — 이 스킬의 보안 체크리스트를 API 구현에 직접 적용한다.
OWASP API Security Top 10 점검
| 순위 | 취약점 | 점검 항목 | 방어 |
|---|---|---|---|
| A1 | BOLA (객체 수준 인가 결함) | 다른 사용자의 리소스 접근 가능? | 모든 엔드포인트에서 객체 소유권 검증 |
| A2 | 인증 결함 | 약한 비밀번호, 무제한 로그인 시도? | bcrypt 해싱, Rate Limit, MFA |
| A3 | 객체 속성 수준 인가 | 숨겨야 할 필드 노출? | 응답 DTO로 필드 필터링 |
| A4 | 무제한 리소스 소비 | 대량 요청으로 서버 마비? | Rate Limiting, 페이지네이션 강제 |
| A5 | 기능 수준 인가 결함 | 관리자 API를 일반 유저가 호출? | RBAC 미들웨어 |
| A6 | 서버 사이드 요청 위조 (SSRF) | 외부 URL 입력으로 내부 접근? | URL 화이트리스트, 내부 IP 차단 |
| A7 | 보안 설정 오류 | 디버그 모드 노출, 기본 계정? | 프로덕션 설정 분리, 헤더 점검 |
| A8 | 비즈니스 흐름 결함 | 정상 API를 비정상 순서로 호출? | 상태 머신 검증, 비즈니스 규칙 서버측 |
| A9 | 취약 자산 관리 | 미사용 API, 구버전 노출? | API 인벤토리, 버전 폐기 정책 |
| A10 | 안전하지 않은 API 소비 | 외부 API 응답 무조건 신뢰? | 외부 응답 검증, 타임아웃 설정 |
인증 (Authentication) 패턴
JWT 기반 인증
| 항목 | 권장 설정 |
|---|---|
| Access Token 만료 | 15~30분 |
| Refresh Token 만료 | 7~14일 |
| 알고리즘 | RS256 (비대칭) 또는 HS256 (대칭) |
| 저장소 | httpOnly + secure + sameSite cookie |
| Payload | 최소 정보만 (userId, role) — PII 금지 |
| 갱신 전략 | Silent Refresh 또는 Rotation |
비밀번호 정책
- 최소 8자, 대소문자+숫자+특수문자 권장 (강제보다 강도 표시)
- bcrypt (cost factor 12+) 또는 Argon2id
- 비밀번호 히스토리 (최근 5개 재사용 금지)
- 로그인 실패 5회 시 임시 잠금 (15분) 또는 CAPTCHA
인가 (Authorization) 패턴
RBAC (역할 기반)
역할 정의: admin, manager, user, viewer
권한 매핑:
admin → *.* (전체)
manager → resource.create, resource.read, resource.update
user → resource.create (own), resource.read (own)
viewer → resource.read (public)미들웨어 체인
요청 → [Rate Limit] → [인증: JWT 검증] → [인가: 역할 확인] → [입력 검증] → 핸들러입력 검증 체크리스트
| 검증 항목 | 방법 | 도구 |
|---|---|---|
| 타입 검증 | 스키마 검증 | Zod, Joi, class-validator |
| 길이 제한 | 최소/최대 길이 | 스키마에 min/max |
| 패턴 매칭 | 이메일, URL, 전화번호 | 정규식 + 라이브러리 |
| 범위 검증 | 숫자 범위, 날짜 범위 | min/max 값 |
| 열거형 | 허용된 값 목록 | enum 타입 |
| SQL Injection | 파라미터화 쿼리 | ORM (Prisma, TypeORM) |
| XSS | HTML 이스케이핑 | DOMPurify (클라이언트), 서버 이스케이프 |
| Path Traversal | 경로 정규화 | path.resolve + 화이트리스트 |
| 파일 업로드 | 타입/크기 검증 | MIME 타입 + 매직넘버 검증 |
Show full SKILL.md (191 more words)Show less
HTTP 보안 헤더
| 헤더 | 값 | 목적 |
|---|---|---|
Strict-Transport-Security | max-age=31536000; includeSubDomains | HTTPS 강제 |
X-Content-Type-Options | nosniff | MIME 스니핑 방지 |
X-Frame-Options | DENY 또는 SAMEORIGIN | 클릭재킹 방지 |
Content-Security-Policy | default-src 'self' | XSS 방지 |
X-XSS-Protection | 0 (CSP로 대체) | 레거시 |
Referrer-Policy | strict-origin-when-cross-origin | 리퍼러 정보 제한 |
Permissions-Policy | camera=(), microphone=() | 브라우저 기능 제한 |
CORS 설정 가이드
| 환경 | 설정 |
|---|---|
| 개발 | origin: 'http://localhost:3000' |
| 프로덕션 | origin: ['https://example.com'] — 도메인 명시 |
| 금지 | origin: '*' + credentials: true — 보안 위험 |
필수 설정:
methods: 필요한 메서드만 허용allowedHeaders: 필요한 헤더만credentials: 쿠키 필요 시에만 truemaxAge: 프리플라이트 캐싱 (86400초)
Rate Limiting 전략
| 대상 | 제한 | 구현 |
|---|---|---|
| 인증 엔드포인트 | 5회/분/IP | IP 기반 |
| API 일반 | 100회/분/사용자 | 토큰 기반 |
| 파일 업로드 | 10회/시간/사용자 | 토큰 기반 |
| 비인증 API | 30회/분/IP | IP 기반 |
응답 헤더
X-RateLimit-Limit: 100
X-RateLimit-Remaining: 95
X-RateLimit-Reset: 1609459200
Retry-After: 60 (429 응답 시)에러 응답 보안
프로덕션 에러 응답 규칙
- 내부 구현 세부사항 절대 노출 금지 (스택 트레이스, SQL 쿼리)
- 일관된 에러 형식 사용
- 열거 공격 방지: 로그인 실패 시 "이메일 또는 비밀번호가 올바르지 않습니다" (어느 것이 틀렸는지 X)
에러 응답 형식
{
"error": {
"code": "VALIDATION_ERROR",
"message": "입력값이 올바르지 않습니다",
"details": [
{"field": "email", "message": "유효한 이메일을 입력하세요"}
]
}
}민감 데이터 처리
| 데이터 유형 | 저장 | 전송 | 로깅 |
|---|---|---|---|
| 비밀번호 | bcrypt 해시만 | HTTPS only | 절대 금지 |
| API Key | 환경변수 | 헤더 (Authorization) | 마스킹 (앞4자리만) |
| 개인정보 (PII) | 암호화 (AES-256) | HTTPS only | 마스킹 |
| 신용카드 | 토큰화 (PG사 위임) | PG사 SDK | 절대 금지 |
| 세션/토큰 | httpOnly cookie | HTTPS only | 절대 금지 |
© revfactory, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in ko/16-fullstack-webapp/.claude/skills/api-security-checklist of revfactory/harness-100.
Open the folder on GitHubat commit 8e8d35c
Compare with similar skills
API Security Checklist next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| API Security Checklist this skillrevfactory/harness-100 | 1.3k | — | ~1.1k | Automated safety check: Pass | Apache-2.0 | |
| Security And Hardeningpenpot/penpot | 61k | 6 repos | ~4.7k | Automated safety check: Notes | MPL-2.0 | |
| Security Auditoreigent-ai/eigent | 15k | — | ~1.8k | Automated safety check: Notes | Apache-2.0 | |
| Security Reviewjewbetcha/opentrace | 116 | 17 repos | ~3.1k | Automated safety check: Notes | MIT | |
| Strix Code Vulnerability Scanusestrix/strix | 67k | — | ~1.1k | Automated safety check: Pass | Apache-2.0 | |
| Code Audit3stoneBrother/code-audit | 893 | 1 repos | ~2.7k | Automated safety check: Pass | None |
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revfactory/harness-100
Audio storytelling skill used by the podcast scriptwriter and show note editor.
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Questions about API Security Checklist
What does API Security Checklist do?
웹앱 API 보안 체크리스트. An agent skill from revfactory/harness-100. API Security Checklist is an agent skill from revfactory/harness-100. 웹앱 API 보안 체크리스트.
When should I use API Security Checklist?
API Security Checklist fits situations like: tasks that involve Web application vulnerabilities.
How do I install API Security Checklist in Claude Code?
Run `npx skills add revfactory/harness-100 --skill api-security-checklist -a claude-code`. Or copy the skill folder (ko/16-fullstack-webapp/.claude/skills/api-security-checklist in revfactory/harness-100) into .claude/skills/api-security-checklist in your project. Claude Code loads it when a task matches its description.
How do I install API Security Checklist in Codex?
Run `npx skills add revfactory/harness-100 --skill api-security-checklist -a codex`. Or copy the skill folder (ko/16-fullstack-webapp/.claude/skills/api-security-checklist in revfactory/harness-100) into .agents/skills/api-security-checklist in your project. Codex loads it when a task matches its description.
Can I use API Security Checklist in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add revfactory/harness-100 --skill api-security-checklist -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/api-security-checklist, .gemini/skills/api-security-checklist, .github/skills/api-security-checklist and .opencode/skills/api-security-checklist in your project.
What does API Security Checklist need to run?
SKILL.md names no scripts, command-line tools or credentials: API Security Checklist is instructions for the agent only.
Does API Security Checklist access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is API Security Checklist safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does API Security Checklist use?
API Security Checklist is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does API Security Checklist use?
About 1.1k tokens (SKILL.md is roughly 4.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to API Security Checklist?
Skills that share tags, products or a category with API Security Checklist: Security And Hardening (penpot/penpot, 61k stars), Security Auditor (eigent-ai/eigent, 15k stars), Security Review (jewbetcha/opentrace, 116 stars) and Strix Code Vulnerability Scan (usestrix/strix, 67k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains API Security Checklist?
revfactory (a GitHub user) maintains it in revfactory/harness-100, which has 1,290 GitHub stars. The repository holds 464 skills in this directory. The repository was last updated on March 22, 2026.
Source: revfactory/harness-100 on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.