crud

crud is a skill for Claude Code, Codex from demodev-lab/claude-code-plugin-demokit. It costs 52 tokens per session (1,558 once invoked), scanned A, original, MIT.

A command for generating the standard parts of a Spring Boot domain, such as an entity, repository, service, controller, and DTO. A domain is a business object such as a user or order.

In plain words
What is it for?
It helps scaffold a new domain from a name and optional fields, with choices for dynamic queries and hard or soft deletion.
Why use it?
It removes the repetitive setup work needed before building CRUD features. CRUD means creating, reading, updating, and deleting records.

Skill for Claude CodeCodex

Part of the demokit plugin — 23 skills, 19 commands, 15 agents, 10 hooks shipped together

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.

agentmods
npx agentmods add skills/demodev-lab/claude-code-plugin-demokit/crud
Any agent
npx skills add demodev-lab/claude-code-plugin-demokit --skill crud
Clone the repo
git clone --depth 1 https://github.com/demodev-lab/claude-code-plugin-demokit

Made for: Claude Code, Codex.

Or install demokit, the plugin that ships this one along with the rest of its 23 skills, 19 commands, 15 agents, 10 hooks.

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 crud

README.md
[![agentmods](https://agentmods.dev/badge/skills/demodev-lab/claude-code-plugin-demokit/crud.svg)](https://agentmods.dev/skills/demodev-lab/claude-code-plugin-demokit/crud)
Your own site
<a href="https://agentmods.dev/skills/demodev-lab/claude-code-plugin-demokit/crud"><img src="https://agentmods.dev/badge/skills/demodev-lab/claude-code-plugin-demokit/crud.svg" alt="Measured on agentmods" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,558 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00052 $0.01558
Opus 5 $0.00026 $0.00779
Sonnet 5 $0.00010 $0.00312
Haiku 4.5 $0.00005 $0.00156

Measured 4d ago against content hash a9e1ce7d6c13, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

crud 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 4d 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/crud/SKILL.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/crud - 도메인 CRUD 일괄 생성

Spring Boot 3.5.10 + Java 21 모던 패턴 적용

help

인자가 help이면 아래 도움말만 출력하고 실행을 중단한다:

/crud — 도메인 CRUD 일괄 생성 (Entity, Repository, Service, Controller, DTO)

사용법:
  /crud {Name} [fields]

파라미터:
  Name    PascalCase 도메인명 (필수)
  fields  필드 목록 (선택, 형식: name:String, email:String)

예시:
  /crud User
  /crud User name:String, email:String, age:Integer
  /crud Order orderNumber:String, totalAmount:BigDecimal

관련 명령:
  /entity     — JPA Entity 생성
  /test       — 테스트 코드 생성
  /pdca plan  — PDCA 워크플로우 시작

실행 절차

1. 입력 검증

  • domainName이 PascalCase인지 확인
  • 프로젝트 base package가 감지되었는지 확인
  • 이미 존재하는 도메인인지 확인

2. 필드 분석

컨벤션: templates/shared/ask-user-convention.md 참조

  • fields가 제공된 경우 파싱
  • fields가 없으면 AskUserQuestion 도구로 추가 옵션을 질문한다:
    • Q1 (header: "QueryDSL"): QueryDSL 동적 쿼리 포함 여부
      • 기본 CRUD만 (Recommended) — JpaRepository 기본 메서드만 생성
      • QueryDSL 포함 — 동적 검색/필터링 Custom Repository 함께 생성
    • Q2 (header: "Soft Delete"): 삭제 전략
      • Hard Delete (Recommended) — 실제 삭제
      • Soft Delete — deleted 플래그 사용, @SQLRestriction 적용
  • 필드별 타입 → JPA 컬럼 타입 매핑

3. 파일 생성 (병렬 전략)

Phase 1 — 기반 생성 (순차) BaseEntity, GlobalExceptionHandler가 없으면 먼저 생성한다.

Phase 2 — 독립 레이어 병렬 생성 다음 작업을 Task 도구로 한 메시지에서 동시에 호출한다:

Task # 담당 생성 파일
Task 1 domain-expert Entity (domain/{domainName}/entity/{DomainName}.java), Repository (domain/{domainName}/repository/{DomainName}Repository.java)
Task 2 api-expert CreateRequest DTO (domain/{domainName}/dto/Create{DomainName}Request.java), UpdateRequest DTO (domain/{domainName}/dto/Update{DomainName}Request.java), Response DTO (domain/{domainName}/dto/{DomainName}Response.java)
Task 3 (선택) QueryDSL CustomRepository, Impl, SearchCondition, QuerydslConfig

각 파일의 상세 규칙:

  • Entity: BaseEntity 상속, @Entity, @Getter, @NoArgsConstructor(access = PROTECTED), @Builder private 생성자
  • Repository: JpaRepository 상속, default 메서드 getById() 패턴
  • Request DTO: 반드시 Java record, Bean Validation 어노테이션 직접 선언
  • Response DTO: 반드시 Java record, from() 정적 메서드

Read the full file on GitHub · 148 lines

Files

What ships with it

1 file beside SKILL.md 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. 4d ago First seen · 148 lines · 52 tokens per session scan A a9e1ce7d6c13

Subscribe to this mod's changes

crud is a skill published in the GitHub repository demodev-lab/claude-code-plugin-demokit (2 stars, last pushed 6mo ago), licensed MIT. It adds 52 tokens to every session and 1,558 once invoked, about $0.0003 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 2026-08-31.

Related

Other skills, from other repositories

systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

obra/superpowers · 21 tokens

brainstorming

You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.

obra/superpowers · 37 tokens

auto-perf-optimize

Run agent-driven VS Code performance or memory investigations. Use when asked to launch Code OSS, automate a VS Code scenario, run the Chat memory smoke runner, capture renderer heap snapshots, take workflow screenshots, compare run summaries, or drive a repeatable scenario before heap-snapshot analysis.

microsoft/vscode · 62 tokens

chat-perf

Run chat perf benchmarks and memory leak checks against the local dev build or any published VS Code version. Use when investigating chat rendering regressions, validating perf-sensitive changes to chat UI, or checking for memory leaks in the chat response pipeline.

microsoft/vscode · 51 tokens

chat-pet-sprite-creation

Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.

microsoft/vscode · 53 tokens

cpu-profile-analysis

Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…

microsoft/vscode · 71 tokens