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webapp-testing SKILL.md skillA

webapp-testing from davepoon/buildwithclaude is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add davepoon/buildwithclaude/webapp-testing@git:20260614.25d61a2

Pins git:20260614.25d61a2 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: davepoon/buildwithclaude
Path: plugins/all-skills/skills/webapp-testing/SKILL.md
Versions recorded: 2
Latest version: git:20260614.25d61a2, committed Jun 14, 2026
First version recorded: Jan 4, 2026
Size: 3,934 bytes
Repository stars: 3,704
License: MIT

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.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# 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
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add davepoon/buildwithclaude/webapp-testing@sha256:31de18cb774e29a2

The line at the top of this page pins the label git:20260614.25d61a2, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_au2zkpkk5h44lgud.svg)](https://markdownregistry.com/a/art_au2zkpkk5h44lgud)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Jan 4, 2026 and Jun 14, 2026, about one every 161 days.

version	committed	commit	size	audit
git:20260614.25d61a2 latest	2026-06-14	25d61a2	3,934 B	A	view · diff
git:20260104.903b22f	2026-01-04	903b22f	3,940 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (3934 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

davepoon/buildwithclaude · 3,704 stars · license MIT · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_au2zkpkk5h44lgud
GET https://markdownregistry.com/api/v1/resolve?ref=davepoon/buildwithclaude/webapp-testing
GET https://markdownregistry.com/api/v1/blob/31de18cb774e29a23b9653257d324d7118a4237287a737a169e3eb39722ec264

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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