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Agent skill

Backend Test Layer

by SeJonJ in SeJonJ/ChatForYou

Spring Boot 백엔드 테스트 레이어 가이드 및 검증 스킬. An agent skill from SeJonJ/ChatForYou.

No licenceAuto-check passedBackend & APIs

Install Backend Test Layer

skills CLI
$ npx skills add SeJonJ/ChatForYou --skill backend-test-layer -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install SeJonJ/ChatForYou backend-test-layer --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/SeJonJ/ChatForYou.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.codex/skills/backend-test-layer .claude/skills/backend-test-layer && rm -rf skills-src

Use ~/.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/

Facts

Skill name
backend-test-layer
GitHub stars
109
Token cost
~1.7k tokens
SKILL.md length
279 words
Files
1
Skills in repo
20
Repo updated
First seen
Licence
None found

At a glance

Spring Boot 백엔드 테스트 레이어 가이드 및 검증 스킬. An agent skill from SeJonJ/ChatForYou.

  • Works in 10 steps: 레이어별 테스트 전략 → 테스트 네이밍 규칙 → Given / When / Then 구조 → …
  • Tasks that involve Backend development
  • SKILL.md covers 1. 레이어별 테스트 전략, 2. 테스트 네이밍 규칙, 3. Given / When / Then 구조 and 4. Controller 테스트 (@WebMvcTest), plus 6 more sections
  • Calls git

What it does

Backend Test Layer is an agent skill from SeJonJ/ChatForYou. Spring Boot 백엔드 테스트 레이어 가이드 및 검증 스킬. "테스트 작성해줘", "테스트 코드 검토해줘", "테스트 레이어 확인", "test convention 체크", "테스트 코드 컨벤션", "테스트 검증" 등의 표현을 사용할 때 반드시 이 스킬을 사용한다. 레이어별 어노테이션, 네이밍, given/when/then, Mockito/MockMvc 패턴, Fixture 관리를 포함. PLAN 파일의 테스트 검증 단계에서도 반드시 사용한다.

Its SKILL.md is about 1.7k 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 Backend & APIs, covering Backend development. It works with Spring Boot. The repository describes itself as: SpringBoot WebSocket & WebRTC Chatting.

When your agent uses it

  • Tasks that involve Backend development

Example prompts

  • “test convention 체크”
  • “/backend-test-layer”

Workflow steps

10 steps, taken from the step headings in SKILL.md.

  1. 레이어별 테스트 전략
  2. 테스트 네이밍 규칙
  3. Given / When / Then 구조
  4. Controller 테스트 (@WebMvcTest)
  5. Service 테스트 (@ExtendWith(MockitoExtension.class))
  6. Repository 테스트 (@DataJpaTest)
  7. Fixture 관리 패턴
  8. 체커 모드 실행 방법
  9. 테스트 컨벤션 체크리스트
  10. 리포트 형식 (체커 모드)

What it can do on your machine

Read from SKILL.md and the folder at commit 2eaae14. 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

    Shell commands in SKILL.md call:

    • git

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    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

Backend Test Layer loads about 1.7k tokens when it runs. Until then it costs about 68 tokens; SKILL.md has 279 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~68
When it runs · the whole SKILL.md, loaded when a task matches
~1.7k

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 279 words (~1,654 tokens).

“이 스킬은 두 가지 모드로 동작한다.”

— opening of SKILL.md by SeJonJ
name
backend-test-layer

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .codex/skills/backend-test-layer of SeJonJ/ChatForYou.

Open the folder on GitHubat commit 2eaae14

Compare with similar skills

Backend Test Layer 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.

Backend Test Layer compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Backend Test Layer this skillSeJonJ/ChatForYou109—~1.7kAutomated safety check: PassNone
Spring Bootpiomin/claude-ai-spring-boot1.3k—~2kAutomated safety check: PassApache-2.0
Dr Jskilljdubois/dr-jskill342—~4.6kAutomated safety check: NotesApache-2.0
WxJava Integration Guidebinarywang/WxJava33k—~123Automated safety check: PassApache-2.0
Grails Developer Guideapache/grails-core2.9k—~4.9kAutomated safety check: PassApache-2.0
Flycms Devsunkaifei/FlyCms656—~827Automated safety check: PassMIT

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Works with

Categories

Questions about Backend Test Layer

What does Backend Test Layer do?

Spring Boot 백엔드 테스트 레이어 가이드 및 검증 스킬. An agent skill from SeJonJ/ChatForYou. Backend Test Layer is an agent skill from SeJonJ/ChatForYou. Spring Boot 백엔드 테스트 레이어 가이드 및 검증 스킬.

When should I use Backend Test Layer?

Backend Test Layer fits situations like: tasks that involve Backend development.

How do I install Backend Test Layer in Claude Code?

Run `npx skills add SeJonJ/ChatForYou --skill backend-test-layer -a claude-code`. Or copy the skill folder (.codex/skills/backend-test-layer in SeJonJ/ChatForYou) into .claude/skills/backend-test-layer in your project. Claude Code loads it when a task matches its description.

How do I install Backend Test Layer in Codex?

Run `npx skills add SeJonJ/ChatForYou --skill backend-test-layer -a codex`. Or copy the skill folder (.codex/skills/backend-test-layer in SeJonJ/ChatForYou) into .agents/skills/backend-test-layer in your project. Codex loads it when a task matches its description.

Can I use Backend Test Layer 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 SeJonJ/ChatForYou --skill backend-test-layer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/backend-test-layer, .gemini/skills/backend-test-layer, .github/skills/backend-test-layer and .opencode/skills/backend-test-layer in your project.

What does Backend Test Layer need to run?

Going by SKILL.md and its folder, Backend Test Layer needs the command-line tools its instructions call (git).

Does Backend Test Layer access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Backend Test Layer 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 Backend Test Layer use?

No licence was found for Backend Test Layer or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Backend Test Layer use?

About 1.7k tokens (SKILL.md is roughly 6.6k 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 Backend Test Layer?

Skills that share tags, products or a category with Backend Test Layer: Spring Boot (piomin/claude-ai-spring-boot, 1.3k stars), Dr Jskill (jdubois/dr-jskill, 342 stars), WxJava Integration Guide (binarywang/WxJava, 33k stars) and Grails Developer Guide (apache/grails-core, 2.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Backend Test Layer?

SeJonJ (a GitHub user) maintains it in SeJonJ/ChatForYou, which has 109 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on September 27, 2026.

Source: SeJonJ/ChatForYou on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.