shipkit-qa-visual

A visual quality-checking skill that uses Playwright to open a web app, take screenshots, and compare the result with stated interface goals. Playwright is a browser-automation library.

In plain words
What is it for?
Use it to set up Playwright or inspect a SaaS app through screenshots and report how it matches UI goals.
Why use it?
It helps find visual problems in important browser states that ordinary code tests may not show.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/stefan-stepzero/shipkit/shipkit-qa-visual
Any agent
npx skills add stefan-stepzero/shipkit --skill shipkit-qa-visual
Clone the repo
git clone --depth 1 https://github.com/stefan-stepzero/shipkit

Made for: Claude Code, Codex.

Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,787 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00045 $0.02787
Opus 5 $0.00023 $0.01393
Sonnet 5 $0.00009 $0.00557
Haiku 4.5 $0.00005 $0.00279

Measured yesterday against content hash e2556a0ef011, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

shipkit-qa-visual scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

2. Probe common ports: `curl -s -o /dev/null -w "%{http_code}" http://localhost:3000` (try 3000, 5173, 4321, 8080, 6847)
install/skills/shipkit-qa-visual/SKILL.md · 328 lines

How it starts

The opening of the file, as written. The whole thing — 328 lines — stays where its author put it; the contents beside it link to each section on GitHub.

shipkit-qa-visual

Visual QA for SaaS apps using Playwright as a lightweight browser automation library — not a test framework. Write an inline script, run it, screenshot meaningful states, read the screenshots, report against UI goals.


Modes

Parse $ARGUMENTS to determine mode:

  • --setup → Run the Setup flow (one-time per project)
  • Anything else (or empty) → Run the Visual QA flow

Setup Mode (--setup)

One-time project setup. Walk through each step, skip any that are already done.

1. Install Playwright

Check if playwright is in package.json devDependencies. If not:

npm install -D @playwright/test playwright

Then install Chromium (warn user about ~200MB download):

npx playwright install chromium

2. Create playwright.config.ts

Only if it doesn't exist at the project root. Detect the app's base URL first:

  1. Check $ARGUMENTS for a URL
  2. Probe common ports: curl -s -o /dev/null -w "%{http_code}" http://localhost:3000 (try 3000, 5173, 4321, 8080, 6847)
  3. Check package.json scripts for port hints
  4. Ask the user if none found
import { defineConfig, devices } from '@playwright/test';

export default defineConfig({
  testDir: './e2e',
  fullyParallel: false,
  retries: 0,
  timeout: 120_000,
  expect: { timeout: 30_000 },
  use: {
    baseURL: '<detected-url>',
    trace: 'on-first-retry',
    screenshot: 'only-on-failure',
  },
  projects: [
    { name: 'chromium', use: { ...devices['Desktop Chrome'] } },
  ],
});

3. Create directories

mkdir -p screenshots e2e

Add screenshots/ to .gitignore if not already there.

4. Create UI Goals

This is the interactive step. The goals document grounds all future visual feedback.

Scan the codebase for routes/pages:

  • Next.js: glob app/**/page.{tsx,ts,jsx,js} and pages/**/*.{tsx,ts,jsx,js} (exclude _app, _document, api/)
  • React Router: grep for <Route or createBrowserRouter
  • Other: grep for route definitions

Read the full file on GitHub · 328 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 328 lines · 45 tokens per session scan A e2556a0ef011

Subscribe to this mod's changes

shipkit-qa-visual is a skill published in the GitHub repository stefan-stepzero/shipkit (1 stars, last pushed 1mo ago), licensed MIT. It adds 45 tokens to every session and 2,787 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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