Agent skill

E2E

by kangraemin in kangraemin/claude-inspector

Run e2e and unit tests for Claude Inspector. An agent skill from kangraemin/claude-inspector.

MITAuto-check passedTesting & QA

Install E2E

skills CLI

$ npx skills add kangraemin/claude-inspector --skill e2e -a claude-code

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

GitHub CLI

$ gh skill install kangraemin/claude-inspector e2e --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/kangraemin/claude-inspector.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/e2e .claude/skills/e2e && 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/

Paste into Claude Code

Install the "e2e" agent skill from https://github.com/kangraemin/claude-inspector/tree/main/.claude/skills/e2e into .claude/skills/e2e/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "e2e", 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

$skill-installer install https://github.com/kangraemin/claude-inspector/tree/main/.claude/skills/e2e

Type 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.

skills CLI

$ npx skills add kangraemin/claude-inspector --skill e2e -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install kangraemin/claude-inspector e2e --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/kangraemin/claude-inspector.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/e2e .agents/skills/e2e && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "e2e" agent skill from https://github.com/kangraemin/claude-inspector/tree/main/.claude/skills/e2e into .agents/skills/e2e/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "e2e", 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.

skills CLI

$ npx skills add kangraemin/claude-inspector --skill e2e -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install kangraemin/claude-inspector e2e --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/kangraemin/claude-inspector.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/e2e .cursor/skills/e2e && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "e2e" agent skill from https://github.com/kangraemin/claude-inspector/tree/main/.claude/skills/e2e into .cursor/skills/e2e/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "e2e", 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

$ gemini skills install https://github.com/kangraemin/claude-inspector.git --path .claude/skills/e2e

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add kangraemin/claude-inspector --skill e2e -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install kangraemin/claude-inspector e2e --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/kangraemin/claude-inspector.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/e2e .gemini/skills/e2e && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "e2e" agent skill from https://github.com/kangraemin/claude-inspector/tree/main/.claude/skills/e2e into .gemini/skills/e2e/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "e2e", 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.

GitHub CLI

$ gh skill install kangraemin/claude-inspector e2e

Installs 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).

skills CLI

$ npx skills add kangraemin/claude-inspector --skill e2e -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/kangraemin/claude-inspector.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/e2e .github/skills/e2e && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "e2e" agent skill from https://github.com/kangraemin/claude-inspector/tree/main/.claude/skills/e2e into .github/skills/e2e/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "e2e", 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.

skills CLI

$ npx skills add kangraemin/claude-inspector --skill e2e -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install kangraemin/claude-inspector e2e --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/kangraemin/claude-inspector.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/e2e .opencode/skills/e2e && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "e2e" agent skill from https://github.com/kangraemin/claude-inspector/tree/main/.claude/skills/e2e into .opencode/skills/e2e/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "e2e", 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: e2e
GitHub stars: 131
Token cost: ~682 tokens
SKILL.md length: 124 words
Files: 1
Skills in repo: 3
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Run e2e and unit tests for Claude Inspector. An agent skill from kangraemin/claude-inspector.

Tasks that involve End-to-end testing
SKILL.md covers Claude Inspector 테스트 실행, 현재 상태, Playwright 핵심 패턴 and 테스트 실패 대처, plus 1 more section
Calls npm and git
Tasks that involve Unit testing

What it does

E2E is an agent skill from kangraemin/claude-inspector. Run e2e and unit tests for Claude Inspector. Use after code changes to verify regressions.

Its SKILL.md is about 680 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 Testing & QA, covering End-to-end testing and Unit testing. It works with Anthropic API and Model Context Protocol. The repository describes itself as: Claude Code Prompt Mechanism Visualizer — Electron desktop app. The licence is MIT.

When your agent uses it

Tasks that involve End-to-end testing
Tasks that involve Unit testing

Example prompts

“/e2e”

What it can do on your machine

Read from SKILL.md and the folder at commit d23cb9e. 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:
- npm
- git
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npm and 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

E2E loads about 682 tokens when it runs. Until then it costs about 24 tokens; SKILL.md has 124 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~24
When it runs · the whole SKILL.md, loaded when a task matches: ~682

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 kangraemin/claude-inspector at commit d23cb9e, republished under its MIT licence (© kangraemin). 124 words, ~682 tokens.

Download SKILL.mdSave it as .claude/skills/e2e/SKILL.md (or your agent's skills folder).

name: e2e
description: Run e2e and unit tests for Claude Inspector. Use after code changes to verify regressions.
user-invocable: true

Claude Inspector 테스트 실행

Unit tests (파싱 로직)

bash

npm run test:unit

parseClaudeMdSections — CLAUDE.md system-reminder 섹션 파싱
parseUserText — 사용자 메시지 내 injected block 감지
detectMechanisms — 5가지 메커니즘 감지 로직

E2E tests (Electron UI)

bash

npm run test:e2e
# headed 모드 (브라우저 보이게)
npm run test:e2e -- --headed
# 특정 테스트만
npm run test:e2e -- --grep "탭 클릭"
# 디버그 모드 (step-by-step)
npm run test:e2e -- --debug

앱이 실행 중이면 먼저 종료: pkill -x "Electron"

전체 실행

bash

npm test

현재 상태

브랜치: !git branch --show-current
변경 파일: !git diff --name-only HEAD 2>/dev/null | head -10

Playwright 핵심 패턴

셀렉터 우선순위

typescript

// ✅ 권장: role, label, data-testid 순
page.getByRole('button', { name: '프록시 시작' })
page.getByLabel('API Key')
page.locator('[data-testid="proxy-toggle"]')
page.locator('[data-m="claude-md"]')  // 이 프로젝트 convention

// ❌ 금지: CSS 클래스, nth-child
page.locator('.btn.active')
page.locator('div > span:nth-child(2)')

대기 전략

typescript

// ❌ 금지: 고정 타임아웃
await page.waitForTimeout(3000);

// ✅ 권장: 상태/요소 기반
await page.waitForLoadState('domcontentloaded');
await expect(page.locator('[data-m="claude-md"]')).toHaveClass(/active/);
await expect(page.getByText('Copied!')).toBeVisible();

Page Object Model (복잡한 테스트에서 활용)

typescript

// tests/e2e/pages/MechanismPage.ts
export class MechanismPage {
  constructor(private page: Page) {}

  tab(name: string) {
    return this.page.locator(`[data-m="${name}"]`);
  }

  async switchTo(name: string) {
    await this.tab(name).click();
    await expect(this.tab(name)).toHaveClass(/active/);
  }
}

네트워크/IPC 모킹 (프록시 테스트)

typescript

// Anthropic API 응답 모킹
await page.route('**/api.anthropic.com/**', route => {
  route.fulfill({
    status: 200,
    contentType: 'application/json',
    body: JSON.stringify({ id: 'msg_test', content: [{ type: 'text', text: 'ok' }] }),
  });
});

실패 시 트레이스 수집

typescript

// playwright.config.ts에 추가
use: {
  trace: 'on-first-retry',
  screenshot: 'only-on-failure',
  video: 'retain-on-failure',
}

테스트 실패 대처

원인	해결
앱 실행 중 충돌	`pkill -x "Electron"`
포트 충돌	`lsof -ti:9090 \| xargs kill`
셀렉터 못 찾음	`--headed` 모드로 실행해 직접 확인
타임아웃	`waitForTimeout` → `waitForLoadState` 변경
Unit test 불일치	`public/index.html` 함수와 `tests/unit/parse.test.mjs` 기대값 동기화 확인

테스트 피라미드

      /E2E\         ← 앱 실행·탭 전환·프록시 제어
     /──────\
    /Unit    \      ← parseClaudeMdSections, detectMechanisms
   /──────────\

E2E는 핵심 워크플로우만. 파싱 로직 엣지케이스는 unit test로.

Files

Just SKILL.md in .claude/skills/e2e of kangraemin/claude-inspector.

Open the folder on GitHubat commit d23cb9e

Compare with similar skills

E2E 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.

E2E compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
E2E this skillkangraemin/claude-inspector	131	—	~682	Automated safety check: Pass	MIT	today
Playwright Testingchongdashu/vibejam-starter-pack	149	—	~2.2k	Automated safety check: Pass	None	5 mo ago
Frontend Playwright E2Eansible/ansible-ui	113	—	~2.5k	Automated safety check: Notes	Apache-2.0	today
Edt MCP Build TestDitriXNew/EDT-MCP	295	—	~1.4k	Automated safety check: Pass	AGPL-3.0	today
Edt MCP TestingDitriXNew/EDT-MCP	295	—	~2.1k	Automated safety check: Pass	AGPL-3.0	today
Typescript TestingComposioHQ/composio	30k	—	~222	Automated safety check: Pass	MIT	today

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Questions about E2E

What does E2E do?

Run e2e and unit tests for Claude Inspector. An agent skill from kangraemin/claude-inspector. E2E is an agent skill from kangraemin/claude-inspector. Run e2e and unit tests for Claude Inspector.

When should I use E2E?

E2E fits situations like: tasks that involve End-to-end testing; tasks that involve Unit testing.

How do I install E2E in Claude Code?

Run `npx skills add kangraemin/claude-inspector --skill e2e -a claude-code`. Or copy the skill folder (.claude/skills/e2e in kangraemin/claude-inspector) into .claude/skills/e2e in your project. Claude Code loads it when a task matches its description.

How do I install E2E in Codex?

Run `npx skills add kangraemin/claude-inspector --skill e2e -a codex`. Or copy the skill folder (.claude/skills/e2e in kangraemin/claude-inspector) into .agents/skills/e2e in your project. Codex loads it when a task matches its description.

Can I use E2E 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 kangraemin/claude-inspector --skill e2e -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/e2e, .gemini/skills/e2e, .github/skills/e2e and .opencode/skills/e2e in your project.

What does E2E need to run?

Going by SKILL.md and its folder, E2E needs the command-line tools its instructions call (npm and git).

Does E2E access the network?

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

Is E2E 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 E2E use?

E2E is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does E2E use?

About 682 tokens (SKILL.md is roughly 2.7k 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 E2E?

Skills that share tags, products or a category with E2E: Playwright Testing (chongdashu/vibejam-starter-pack, 149 stars), Frontend Playwright E2E (ansible/ansible-ui, 113 stars), Edt MCP Build Test (DitriXNew/EDT-MCP, 295 stars) and Edt MCP Testing (DitriXNew/EDT-MCP, 295 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains E2E?

kangraemin (a GitHub user) maintains it in kangraemin/claude-inspector, which has 131 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on October 8, 2026.

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

Install E2E

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Claude Inspector 테스트 실행

Unit tests (파싱 로직)

E2E tests (Electron UI)

전체 실행

현재 상태

Playwright 핵심 패턴

셀렉터 우선순위

대기 전략

Page Object Model (복잡한 테스트에서 활용)

네트워크/IPC 모킹 (프록시 테스트)

실패 시 트레이스 수집

테스트 실패 대처

테스트 피라미드

Files

Compare with similar skills

Similar skills

More from kangraemin/claude-inspector

Related

Questions about E2E