jurybu/mcp-skill-rules_packages · skills/webapp-testing/SKILL.md

webapp-testing skillA

webapp-testing is agent-read markdown (skill) from jurybu/mcp-skill-rules_packages: 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..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add jurybu/mcp-skill-rules_packages/webapp-testing@git:20260606.4f12f4d
Exact content
mdr add jurybu/mcp-skill-rules_packages/webapp-testing@sha256:1f77d7de1954dd31

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_b75cc3ybjsif76d4.svg)](https://markdownregistry.com/a/art_b75cc3ybjsif76d4)

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Versions

versioncommittedcommitsizeaudit
git:20260606.4f12f4d latest2026-06-06 4f12f4d 3,913 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (3913 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

jurybu/mcp-skill-rules_packages · 48 stars · license MIT · pushed 2026-09-24 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_b75cc3ybjsif76d4
GET https://markdownregistry.com/api/v1/resolve?ref=jurybu/mcp-skill-rules_packages/webapp-testing
GET https://markdownregistry.com/api/v1/blob/1f77d7de1954dd311fbd319e993f54ce8de4f5855e59289630adb414d9bfdabc

Your agent does the deals. You hear about the good ones. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.