playwright-skill MCP — 사용 사례, 설치 & 라이브 데모

왜 쓰나요

핵심 기능

Model-invoked — Claude writes custom Playwright code tailored to your ask
Headed browser by default so you can see the automation run
Built-in run.js handles module resolution so scripts just work
On-demand Playwright API reference loading to keep the context lean
Handles testing, form filling, click-throughs, broken-link checks, responsive checks

라이브 데모

실제 사용 모습

playwright-skill.replay ▶ 준비됨

0/0

설치

클라이언트 선택

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "playwright-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/lackeyjb/playwright-skill",
        "~/.claude/skills/playwright-skill"
      ],
      "_inferred": true
    }
  }
}

Claude Desktop → Settings → Developer → Edit Config 열기. 저장 후 앱 재시작.

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "playwright-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/lackeyjb/playwright-skill",
        "~/.claude/skills/playwright-skill"
      ],
      "_inferred": true
    }
  }
}

Cursor는 Claude Desktop과 동일한 mcpServers 스키마 사용. 프로젝트 설정이 전역보다 우선.

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "playwright-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/lackeyjb/playwright-skill",
        "~/.claude/skills/playwright-skill"
      ],
      "_inferred": true
    }
  }
}

Cline 사이드바의 MCP Servers 아이콘 클릭 후 "Edit Configuration" 선택.

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "playwright-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/lackeyjb/playwright-skill",
        "~/.claude/skills/playwright-skill"
      ],
      "_inferred": true
    }
  }
}

Claude Desktop과 같은 형식. Windsurf 재시작 후 적용.

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "playwright-skill",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/lackeyjb/playwright-skill",
        "~/.claude/skills/playwright-skill"
      ]
    }
  ]
}

Continue는 맵이 아닌 서버 오브젝트 배열 사용.

~/.config/zed/settings.json

{
  "context_servers": {
    "playwright-skill": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/lackeyjb/playwright-skill",
          "~/.claude/skills/playwright-skill"
        ]
      }
    }
  }
}

context_servers에 추가. 저장 시 Zed가 핫 리로드.

claude mcp add playwright-skill -- git clone https://github.com/lackeyjb/playwright-skill ~/.claude/skills/playwright-skill

한 줄 명령. claude mcp list로 확인, claude mcp remove로 제거.

사용 사례

실전 활용법: playwright-skill

Write a smoke test for a signup flow on demand

👤 Developers who want a test without hand-writing Playwright ⏱ ~10 min beginner

언제 쓸까: You pushed a new signup flow and want to know it still works end-to-end.

사전 조건

Node + Playwright installable — The skill will install browsers via npx playwright install if missing

흐름

Describe the flow

Use the playwright skill. Open localhost:3000, sign up with [email protected] / Pass123!, verify we land on /dashboard.✓ 복사됨

→ Claude writes a Playwright script, runs it headed, reports pass/fail
Debug failures interactively

It failed at the email input — add a screenshot right before the error.✓ 복사됨

→ Next run captures and returns the screenshot

결과: A one-off smoke test you can optionally save as a persistent spec.

함정

Selectors chosen are brittle (e.g. nth-child) — Ask Claude to prefer role/label selectors

함께 쓰기: filesystem

Find all broken links on a documentation site

👤 Docs maintainers ⏱ ~15 min intermediate

언제 쓸까: You suspect link rot after a restructuring.

흐름

Describe the crawl

Use playwright to crawl https://docs.example.com up to depth 2, log every link, and return the 404s.✓ 복사됨

→ Claude writes a BFS crawler, runs it, outputs a list

결과: A triaged list of dead links to fix.

함정

Crawler hits the site hard — Cap concurrency at 2-3 and add small delays

Spot-check responsive rendering across 3 viewports

👤 Frontend devs validating a layout change ⏱ ~5 min beginner

언제 쓸까: You changed the header and want to see how it renders on desktop, tablet, and mobile.

흐름

Request screenshots

Use playwright to screenshot localhost:3000 at 1440, 768, and 390 width. Save them.✓ 복사됨

→ 3 PNGs saved and paths returned

결과: Three screenshots for quick visual review.

함정

Screenshots don't wait for fonts/images — Add a networkidle wait before snapping

함께 쓰기: filesystem

조합

다른 MCP와 조합해 10배 효율

playwright-skill + filesystem

Save test specs and screenshots alongside the code they test

Write the smoke test and save it under tests/e2e/signup.spec.js.✓ 복사됨

playwright-skill + github

Run the test, fail the workflow, post results on the PR

Run the playwright spec against the deploy preview, then post results as a comment on PR #42.✓ 복사됨

playwright-skill + ios-simulator-skill

Playwright for web, ios-simulator-skill for native — use both in a cross-platform test session

Run the playwright web flow and the ios-simulator native flow in sequence, report both.✓ 복사됨

도구

이 MCP가 노출하는 것

도구	입력	언제 호출
Custom Playwright script generation	task description	Any browser automation ask
run.js executor	script path	After script generation
Headed/headless toggle	flag	CI vs local debugging

비용 및 제한

운영 비용

API 쿼터: None
호출당 토큰: 1-5k per test run, depending on how much Playwright reference Claude pulls in
금액: Free — you only need Node + Playwright browsers on disk
팁: Keep prompts focused; don't ask for 'test everything' in one shot.

보안

권한, 시크릿, 파급범위

자격 증명 저장: No credentials in the skill. If your tests hit authenticated pages, keep creds in env vars — never in the generated script.

데이터 외부 송신: Only to sites your test visits

Generated scripts run with full local-process privileges — review before running against production URLs.

문제 해결

자주 발생하는 오류와 해결

'browserType.launch: Executable doesn't exist'

Run npx playwright install chromium

확인: npx playwright --version

Selector fails intermittently

Switch to role/label selectors; add await expect(...).toBeVisible() waits.

Script hangs

Claude likely forgot to close the browser. Tell it to always wrap in try/finally with await browser.close().

대안

playwright-skill 다른 것과 비교

대안	언제 쓰나	단점/장점
playwright MCP	You want structured MCP tools (click, fill, snapshot) rather than code generation	MCP abstracts away code; this skill writes real scripts you can reuse
Puppeteer skills / chrome-devtools MCP	Chrome-only workflows, DevTools protocol features	Less cross-browser

playwright-skill