webapp-uat

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---
name: webapp-uat
description: Full browser UAT for web apps — Playwright testing with console/network error capture, accessibility checks, i18n validation, and bug triage. Use when running screen-by-screen UAT or testing specific features in any web or hybrid app (React, Vue, Angular, Ionic, Next.js, etc).
user-invocable: true
argument-hint: "[screen-name | url | 'full']"
allowed-tools:
  - Bash
  - Read
  - Edit
  - Write
  - Glob
  - Grep
  - Agent
---

# Web App UAT Skill

Real browser testing for web applications using Playwright. This skill captures EVERYTHING — console errors, network failures, rendering bugs, broken i18n keys, missing data — and fixes bugs as they're found.

Works with any web stack: React, Vue, Angular, Svelte, Next.js, Nuxt, Ionic/Capacitor, and plain HTML.

## CRITICAL RULES

1. **Console errors are bugs.** Every `console.error`, unhandled rejection, and runtime exception MUST be captured and reported. If a console error blocks functionality, FIX IT before continuing.
2. **Network failures are bugs.** 401s, 500s, CORS errors, timeout responses — capture them ALL. Check if the backend is returning proper data or error payloads.
3. **Visual rendering = truth.** Screenshots show what the user actually sees. If a component renders "---", "undefined", "NaN", "[object Object]", or a raw i18n key, that's a bug.
4. **Backend logs matter.** Check server logs for errors that cause frontend skeleton loaders or empty states.
5. **Fix bugs inline.** Don't just report — fix the code, verify the fix compiles, then re-test.

## Prerequisites

- Playwright installed: `npx playwright --version` (v1.40+)
- Chromium browser: `npx playwright install chromium` if needed
- Frontend running (default `http://localhost:3000` — override with `BASE_URL`)
- Backend running (default `http://localhost:4000` — override with `BACKEND_URL`)

## Getting Started

Before running UAT, the skill needs to understand your app. It will:

1. **Auto-detect your stack** by reading `package.json`, framework configs, and route definitions
2. **Build a screen checklist** from your routes/pages
3. **Identify auth strategy** from your code (JWT, cookies, OAuth, etc.)

If your project has a `uat.config.js` in the root, the skill uses it directly. Otherwise, it auto-discovers screens and asks you to confirm.

## UAT Config (Optional)

Create `uat.config.js` in your project root for repeatable runs:

```javascript
module.exports = {
  // Base URLs
  baseUrl: process.env.BASE_URL || 'http://localhost:3000',
  backendUrl: process.env.BACKEND_URL || 'http://localhost:4000',

  // Browser settings
  viewport: { width: 1440, height: 900 },
  colorScheme: 'dark', // 'dark' | 'light' | 'no-preference'
  headless: true,

  // Authentication (pick one)
  auth: {
    // Option A: Reuse saved browser state (cookies, localStorage)
    storageState: '/tmp/uat-auth-state.json',

    // Option B: Login programmatically
    // login: async (page) => {
    //   await page.goto('/login');
    //   await page.fill('input[type="email"]', process.env.TEST_EMAIL);
    //   await page.fill('input[type="password"]', process.env.TEST_PASSWORD);
    //   await page.click('button[type="submit"]');
    //   await page.waitForURL('**/dashboard', { timeout: 15000 });
    // },

    // Option C: Open headed browser for manual login
    // interactive: true,
  },

  // Health check endpoints (verified before UAT starts)
  healthChecks: [
    '/health',
    // '/api/ping',
  ],

  // Screens to test — each screen gets a full pass
  screens: [
    {
      name: 'Home',
      path: '/',
      checks: [
        'page loads without console errors',
        'page title is set',
        'main content renders (not empty/skeleton)',
      ],
    },
    {
      name: 'Dashboard',
      path: '/dashboard',
      checks: [
        'data renders with real values (not placeholders)',
        'charts/graphs render (canvas/svg has dimensions > 0)',
        'no failed API calls',
      ],
    },