어떤 스킬인가요?
화면이 완성돼 보여도 버튼을 누르거나 정보를 입력했을 때 오류가 나는 경우가 있습니다. 이 스킬은 로컬 웹앱을 실제 브라우저에서 조작하며 그런 문제를 확인합니다.
실행 주소와 사용자가 따라갈 경로를 전달해보세요. 어떤 순서에서 문제가 생겼는지와 화면·오류 확인 결과를 함께 남겨 수정해야 할 부분을 찾는 데 활용할 수 있습니다.
webapp-testing · Claude / Claude Code
브라우저로 로컬 웹앱을 조작하며 화면, 동작과 오류를 확인합니다.
화면이 완성돼 보여도 버튼을 누르거나 정보를 입력했을 때 오류가 나는 경우가 있습니다. 이 스킬은 로컬 웹앱을 실제 브라우저에서 조작하며 그런 문제를 확인합니다.
실행 주소와 사용자가 따라갈 경로를 전달해보세요. 어떤 순서에서 문제가 생겼는지와 화면·오류 확인 결과를 함께 남겨 수정해야 할 부분을 찾는 데 활용할 수 있습니다.
“이 로컬 앱에서 검색, 저장, 상세 보기, 목록 복귀를 차례로 확인해줘. 실패하는 단계와 화면 오류를 정리해줘.”
받을 수 있는 결과재현 단계와 화면·오류 확인 결과
해당 스킬을 추가할 수 있는 Claude 환경이 필요합니다. 파일·코드 작업은 실행 도구 지원 여부를 확인하세요.
Claude Code 채팅에 설치 요청을 붙여넣으세요. 개인용은 ~/.claude/skills/, 프로젝트용은 .claude/skills/ 아래에 스킬 폴더와 보조 파일을 함께 둡니다. Claude 웹에서는 지원되는 계정의 Skills 설정에서 패키지를 추가하세요.
https://github.com/anthropics/skills 에서 skills/webapp-testing 스킬을 현재 에이전트의 스킬 폴더에 설치해줘. SKILL.md와 이 스킬이 참조하는 scripts·references·assets와 공통 파일을 함께 유지하고, 필요한 실행 환경과 추가 연결을 확인한 뒤 알려줘. 설치가 끝나면 webapp-testing 스킬을 인식하는지 확인해줘.
“webapp-testing 스킬을 사용해줘. 입력 자료: 실행 가능한 앱과 점검할 흐름”처럼 요청하세요. 위의 예시를 내 자료에 맞게 바꿔도 좋아요.
예상 결과는 ‘재현 단계와 화면·오류 확인 결과’입니다. 필요한 내용이 포함됐는지 확인하세요. 입력 자료의 사실·숫자와 결과를 대조하고, 부족한 부분을 이어서 요청하세요.
제작자 원본 2026-10-04 확인 · 설치 안내 2026-10-04 확인 · 실제 설치·실행 미검증
모델 사용 요금과 연결 앱 요금은 이용 중인 서비스의 정책을 따릅니다.
설치 안내 출처---
name: webapp-testing
description: Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
license: Complete terms in LICENSE.txt
---
# Web Application Testing
To test local web applications, write native Python Playwright scripts.
**Helper Scripts Available**:
- `scripts/with_server.py` - Manages server lifecycle (supports multiple servers)
**Always run scripts with `--help` first** to see usage. DO NOT read the source until you try running the script first and find that a customized solution is abslutely necessary. These scripts can be very large and thus pollute your context window. They exist to be called directly as black-box scripts rather than ingested into your context window.
## Decision Tree: Choosing Your Approach
```
User task → Is it static HTML?
├─ Yes → Read HTML file directly to identify selectors
│ ├─ Success → Write Playwright script using selectors
│ └─ Fails/Incomplete → Treat as dynamic (below)
│
└─ No (dynamic webapp) → Is the server already running?
├─ No → Run: python scripts/with_server.py --help---
name: webapp-testing
description: Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
license: Complete terms in LICENSE.txt
---
# Web Application Testing
To test local web applications, write native Python Playwright scripts.
**Helper Scripts Available**:
- `scripts/with_server.py` - Manages server lifecycle (supports multiple servers)
**Always run scripts with `--help` first** to see usage. DO NOT read the source until you try running the script first and find that a customized solution is abslutely necessary. These scripts can be very large and thus pollute your context window. They exist to be called directly as black-box scripts rather than ingested into your context window.
## Decision Tree: Choosing Your Approach
```
User task → Is it static HTML?
├─ Yes → Read HTML file directly to identify selectors
│ ├─ Success → Write Playwright script using selectors
│ └─ Fails/Incomplete → Treat as dynamic (below)
│
└─ No (dynamic webapp) → Is the server already running?
├─ No → Run: python scripts/with_server.py --help
│ Then use the helper + write simplified Playwright script
│
└─ Yes → Reconnaissance-then-action:
1. Navigate and wait for networkidle
2. Take screenshot or inspect DOM
3. Identify selectors from rendered state
4. Execute actions with discovered selectors
```
## Example: Using with_server.py
To start a server, run `--help` first, then use the helper:
**Single server:**
```bash
python scripts/with_server.py --server "npm run dev" --port 5173 -- python your_automation.py
```
**Multiple servers (e.g., backend + frontend):**
```bash
python scripts/with_server.py \
--server "cd backend && python server.py" --port 3000 \
--server "cd frontend && npm run dev" --port 5173 \
-- python your_automation.py
```
To create an automation script, include only Playwright logic (servers are managed automatically):
```python
from playwright.sync_api import sync_playwright
with sync_playwright() as p:
browser = p.chromium.launch(headless=True) # Always launch chromium in headless mode
page = browser.new_page()
page.goto('http://localhost:5173') # Server already running and ready
page.wait_for_load_state('networkidle') # CRITICAL: Wait for JS to execute
# ... your automation logic
browser.close()
```
## Reconnaissance-Then-Action Pattern
1. **Inspect rendered DOM**:
```python
page.screenshot(path='/tmp/inspect.png', full_page=True)
content = page.content()
page.locator('button').all()
```
2. **Identify selectors** from inspection results
3. **Execute actions** using discovered selectors
## Common Pitfall
❌ **Don't** inspect the DOM before waiting for `networkidle` on dynamic apps
✅ **Do** wait for `page.wait_for_load_state('networkidle')` before inspection
## Best Practices
- **Use bundled scripts as black boxes** - To accomplish a task, consider whether one of the scripts available in `scripts/` can help. These scripts handle common, complex workflows reliably without cluttering the context window. Use `--help` to see usage, then invoke directly.
- Use `sync_playwright()` for synchronous scripts
- Always close the browser when done
- Use descriptive selectors: `text=`, `role=`, CSS selectors, or IDs
- Add appropriate waits: `page.wait_for_selector()` or `page.wait_for_timeout()`
## Reference Files
- **examples/** - Examples showing common patterns:
- `element_discovery.py` - Discovering buttons, links, and inputs on a page
- `static_html_automation.py` - Using file:// URLs for local HTML
- `console_logging.py` - Capturing console logs during automationOriginal skill: anthropics/skills/skills/webapp-testing/SKILL.md
Source: https://github.com/anthropics/skills/blob/8a1541c4a3ffa5a20a5a91de0dcf3f0bab1d1ef4/skills/webapp-testing/SKILL.md
License: Apache-2.0
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limitations under the License.SKILL.md 본문입니다. 원문에서 참조하는 스크립트·보조 파일은 원본 패키지에 포함되어 있습니다.