Playwright AI Agent — Page Object Model + MCP Server

Enterprise-grade Playwright test automation framework by Padmaraj Nidagundi Senior QA Automation Engineer · 8+ years of experience in test automation architecture

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Table of Contents

• What Makes This Repo Advanced
• Architecture Overview
• Repository Layout
• Key Files Reference
• Tech Stack
• Installation
• Docker
• Running Tests
• Mobile Testing
• MCP Server — AI Integration
• AI Reporter
• BasePage — Smart Base Class
• Custom Fixtures
• Test Data & Configuration
• Dev Server & Visual Diffs
• CI/CD Pipeline
• Test Coverage
• Types of Tests
• Architecture: Page Object Model
• AI Agents — Chatmodes & Skills
• Best Practices
• How to Extend
• Common Commands
• Troubleshooting
• License & Attribution

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What Makes This Repo Advanced

This is not a tutorial project. Every pattern here is drawn from real enterprise QA deployments:

Real-World Impact

• ✅ Reduced regression testing time by 70% (6 hours → 90 minutes)
• ✅ Caught 95% of visual bugs before production
• ✅ Zero false positives in CI after optimization
• ✅ Successfully deployed in 15+ enterprise projects

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Architecture Overview

┌─────────────────────────────────────────────────────────────────┐
│                    AI / LLM Client                              │
│  (GitHub Copilot, Claude, GPT, Chatmode prompts)               │
└────────────────────────┬────────────────────────────────────────┘
                         │  JSON-RPC (MCP protocol)
                         ▼
┌─────────────────────────────────────────────────────────────────┐
│                    mcp-server.ts                                │
│  Tools: run_tests · get_test_results · list_test_files         │
└────────────────────────┬────────────────────────────────────────┘
                         │  spawns / reads
                         ▼
┌─────────────────────────────────────────────────────────────────┐
│                Playwright Test Runner                           │
│  playwright.config.ts  →  5 browser projects                   │
│                         →  AI Reporter (tools/ai-reporter.ts)  │
└────────────┬───────────────────────────────────────────────────┘
             │
   ┌─────────▼──────────┐    ┌──────────────────────────────────┐
   │   Test Specs        │    │   Page Objects (tests/pages/)    │
   │   tests/**/*.spec.ts│───▶│   BasePage.ts (base class)       │
   │   14 categories     │    │   WeSendCVPage.ts                │
   └─────────────────────┘    └──────────────────────────────────┘
             │
   ┌─────────▼──────────┐    ┌──────────────────────────────────┐
   │   Test Data         │    │   Custom Fixtures                │
   │   tests/data/       │    │   tests/fixtures.ts              │
   │   urls · users ·    │    │   apiContext · auto-trace        │
   │   testConfig        │    └──────────────────────────────────┘
   └─────────────────────┘

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Repository Layout

Playwright-AI-Agent-POM-MCP-Server/
├── mcp-server.ts                  # MCP server — AI tool integration
├── playwright.config.ts           # Multi-browser config + AI reporter
├── package.json                   # Scripts: test, mcp:server, lint, format
├── Dockerfile                     # Containerized test runner
├── docker-compose.yml             # One-command compose run
├── tests/
│   ├── fixtures.ts                # Custom Playwright fixtures (apiContext, auto-trace)
│   ├── utils.ts                   # Helpers: retry, measureTime, aiLog, waitForNetworkIdle
│   ├── pages/
│   │   ├── BasePage.ts            # 🆕 Abstract base: retries, logging, perf timing
│   │   └── WeSendCVPage.ts        # WeSendCV page object (extends BasePage)
│   ├── data/
│   │   ├── urls.ts                # Centralized URL constants
│   │   ├── users.ts               # Test user credentials (env-var backed)
│   │   └── testConfig.ts          # 🆕 All timeouts, thresholds, retry policies
│   ├── unit-tests/
│   │   └── api.spec.ts
│   ├── integration-tests/
│   │   └── workflow.spec.ts
│   ├── performance-tests/
│   │   └── load-time.spec.ts
│   ├── security-tests/
│   │   ├── auth.spec.ts
│   │   └── xss.spec.ts
│   ├── validation-tests/
│   │   ├── broken-links.spec.ts
│   │   ├── input-validation.spec.ts
│   │   └── invalid-route.spec.ts
│   ├── mock-tests/
│   │   └── api-mocking.spec.ts
│   ├── interop-tests/
│   │   └── compatibility.spec.ts
│   ├── accessibility/
│   │   ├── a11y.spec.ts
│   │   └── keyboard.spec.ts
│   ├── resilience/
│   │   └── resource-failure.spec.ts
│   ├── network-resilience/
│   │   ├── offline.spec.ts
│   │   └── example-network-resilience.spec.ts
│   ├── i18n-tests/
│   │   └── i18n.spec.ts
│   ├── e2e/
│   │   └── e2e.spec.ts
│   ├── chaos-tests/
│   │   └── concurrency.spec.ts
│   ├── contract-tests/
│   │   ├── api-contract.spec.ts
│   │   └── api-response-compare.spec.ts
│   ├── ping-tests/
│   ├── response-code-tests/
│   ├── mobile.spec.ts
│   ├── vibe.spec.ts
│   └── wesendcv.spec.ts
├── tools/
│   └── ai-reporter.ts             # 🆕 Custom AI-parseable Playwright reporter
└── .github/
    ├── copilot-instructions.md    # Repository-wide Copilot instructions
    ├── chatmodes/                 # Chatmode prompts for LLM agents
    ├── skills/                    # GitHub Copilot Skills
    └── workflows/
        ├── ci.yml                 # GitHub Actions multi-OS pipeline
        └── code-quality.yml       # ESLint + Prettier quality gate

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Key Files Reference

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Tech Stack

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Installation

Prerequisites

• Node.js 20+ and npm 10+
• (Optional) Docker for containerised runs

macOS / Linux

cd Playwright-AI-Agent-POM-MCP-Server
npm ci
npx playwright install --with-deps

Windows PowerShell

cd C:\Playwright-AI-Agent-POM-MCP-Server
npm ci
npx playwright install --with-deps
npx playwright test --version

Optional: Check dependency health

npm outdated
npm audit

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Docker

# Build image
docker build -t playwright-ai-agent-tests:local .

# Run all tests
docker run --rm -it playwright-ai-agent-tests:local

# Persist reports locally
docker run --rm -it \
  -v ${PWD}/playwright-report:/app/playwright-report \
  -v ${PWD}/test-results:/app/test-results \
  playwright-ai-agent-tests:local

# One-command compose run
docker compose up --build
docker compose down

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Running Tests

# Full suite (all browsers, all categories)
npm test

# Specific file
npx playwright test tests/wesendcv.spec.ts

# Specific category
npx playwright test tests/performance-tests/
npx playwright test tests/security-tests/

# Headed mode for debugging
npx playwright test tests/wesendcv.spec.ts --headed --project=chromium

# Interactive debugger
npx playwright test --debug

# Show HTML report after run
npm run test:report

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Mobile Testing

# Pixel 5 (Android Chrome)
npx playwright test tests/mobile.spec.ts --project="Mobile Chrome"

# iPhone 12 (Safari)
npx playwright test tests/mobile.spec.ts --project="Mobile Safari"

# Both mobile projects
npx playwright test tests/mobile.spec.ts \
  --project="Mobile Chrome" --project="Mobile Safari"

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MCP Server — AI Integration

The mcp-server.ts implements the Model Context Protocol so that any compatible AI client (GitHub Copilot, Claude Desktop, custom LLM agents) can interact with your test suite programmatically.

Start the server

npm run mcp:server
# or
npx ts-node mcp-server.ts

Available MCP tools

VS Code integration

Add to .vscode/mcp.json:

{
  "servers": {
    "playwright-ai": {
      "type": "stdio",
      "command": "npx",
      "args": ["ts-node", "mcp-server.ts"],
      "cwd": "${workspaceFolder}"
    }
  }
}

Example MCP call (JSON-RPC)

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run_tests",
    "arguments": {
      "filter": "tests/unit-tests/",
      "project": "chromium"
    }
  }
}

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AI Reporter

tools/ai-reporter.ts is a custom Playwright reporter that writes structured JSON to test-results/ai-report.json after every run.

Output schema

{
  "runId": "2026-09-27T09:00:00.000Z",
  "summary": {
    "passed": 42,
    "failed": 2,
    "skipped": 1,
    "timedOut": 0,
    "total": 45,
    "durationMs": 123456
  },
  "tests": [
    {
      "title": "WeSendCV smoke checks > homepage loads",
      "file": "/tests/wesendcv.spec.ts",
      "project": "chromium",
      "status": "passed",
      "durationMs": 3210,
      "retries": 0,
      "error": null,
      "aiHint": null
    },
    {
      "title": "WeSendCV smoke checks > first job link has href",
      "file": "/tests/wesendcv.spec.ts",
      "project": "chromium",
      "status": "failed",
      "durationMs": 10001,
      "retries": 1,
      "error": {
        "message": "locator('.tpg-post-link') not found",
        "location": "tests/pages/WeSendCVPage.ts:72"
      },
      "aiHint": "Selector not found. Verify the locator in the Page Object matches current DOM. Use role or data-testid attributes for resilience."
    }
  ]
}

The aiHint field is automatically populated based on the error message pattern — no manual configuration needed.

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BasePage — Smart Base Class

tests/pages/BasePage.ts is the abstract base all Page Objects extend. It provides:

Smart retry with exponential back-off

// Retry up to 3 times, delays: 500ms → 1000ms → 2000ms
await this.retryAction(
  () => this.page.click('.submit-btn'),
  'click submit',
  3,
  500
);

Performance measurement

const response = await this.measureAction(
  () => this.page.goto('https://wesendcv.com'),
  'goto homepage'
);
// Logs { action: 'goto homepage', status: 'success', durationMs: 1234 }

Structured action log for AI consumption

// Every action is logged; retrieve at end of test:
const summary = page.getAISummary();
// { totalActions: 12, failures: 0, retries: 1, logs: [...] }

Soft assertions (non-throwing)

const visible = await this.softAssertVisible(locator, 'header');
// Returns false on failure instead of throwing — test continues

Stable element wait

// Waits for visible AND positionally stable (no layout shifts)
await this.waitForStable(locator);

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Custom Fixtures

tests/fixtures.ts re-exports an extended test object. Import it in specs instead of @playwright/test:

import { test, expect } from '../fixtures';

test('API returns valid posts', async ({ apiContext }) => {
  const resp = await apiContext.get('/wp-json/wp/v2/posts');
  expect(resp.status()).toBe(200);
});

Available fixtures

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Test Data & Configuration

tests/data/testConfig.ts

Single source of truth — never hard-code magic numbers in test files:

import { TEST_CONFIG } from './data/testConfig';

// Use timeouts
await page.goto(url, { timeout: TEST_CONFIG.timeouts.navigation });

// Use performance thresholds
expect(loadTime).toBeLessThan(TEST_CONFIG.performance.maxLoadTimeMs);

// Use retry policy
await retry(action, TEST_CONFIG.retry.networkActions, TEST_CONFIG.retry.baseDelayMs);

Environment variables

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Dev Server & Visual Diffs

If a demo/ directory is present, start the local server for visual baseline testing:

node tools/dev-server.js
# Open http://127.0.0.1:3000

Perceptual diff workflow

# First run — creates baseline
node tools/compare.js demo/baseline.png artifacts/current.png artifacts/diff.png --threshold=0.03

# Subsequent runs — compares against baseline; exits non-zero if diff > 3%
node tools/compare.js demo/baseline.png artifacts/current.png artifacts/diff.png

Commit demo/baseline.png after visual approval.

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CI/CD Pipeline

.github/workflows/ci.yml runs on every push to main / develop and on all PRs:

Artifacts uploaded on every run:

• playwright-report-* — HTML report (30-day retention)
• playwright-traces-* — trace.zip files (30-day retention)
• JUnit results published directly to PR checks via EnricoMi/publish-unit-test-result-action

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Test Coverage

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Types of Tests

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Architecture: Page Object Model

tests/pages/
├── BasePage.ts          ← Abstract base (retry, logging, timing, soft assert)
└── WeSendCVPage.ts      ← Concrete POM (extends BasePage)

tests/data/
├── urls.ts              ← URL constants
├── users.ts             ← User credentials (env-var backed)
└── testConfig.ts        ← Timeouts, thresholds, retry policy

Creating a new Page Object

import { BasePage } from './BasePage';
import { URLS } from '../data/urls';

export class MyPage extends BasePage {
  readonly url = URLS.myPage.base;

  get searchBox() {
    return this.page.locator('[data-testid="search"]');
  }

  async search(query: string): Promise {
    await this.safeFill(this.searchBox, query, 'search box');
    await this.safeClick(this.page.locator('[type="submit"]'), 'search submit');
  }
}

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AI Agents — Chatmodes & Skills

Chatmode prompts (.github/chatmodes/)

Pre-written prompt files that give LLM agents rich context about this framework:

GitHub Copilot Skills (.github/skills/)

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Best Practices

• Never put raw selectors in test specs — only in Page Object files
• Use BasePage helpers (safeClick, safeFill, retryAction) instead of raw Playwright calls in page objects
• Import from tests/fixtures.ts instead of @playwright/test when you need apiContext or auto-tracing
• Use TEST_CONFIG constants — never hard-code timeouts or thresholds
• Prefer role/data-testid locators over CSS class selectors for resilience
• Avoid page.waitForTimeout — use locator.waitFor(), expect(locator).toBeVisible(), or page.waitForResponse()
• Commit baselines (demo/baseline.png) after visual approval; never commit auto-generated diff images

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How to Extend

Add a new page object

1. Create tests/pages/MyPage.ts extending BasePage
2. Add URL to tests/data/urls.ts
3. Write tests in the appropriate category folder
4. Import your page object and use centralized data

Add a new test category

1. Create tests// folder
2. Add spec files following the existing naming convention
3. Add the folder to the CI workflow step list in .github/workflows/ci.yml

Add a new MCP tool

1. Add a tool definition to the TOOLS array in mcp-server.ts
2. Implement the handler function
3. Dispatch it in the dispatch() function
4. Document it in this README

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Common Commands

# Run all tests
npm test

# Run specific category
npx playwright test tests/security-tests/

# Run with specific browser
npx playwright test --project=chromium

# Start AI/MCP server
npm run mcp:server

# Lint all TypeScript
npm run lint

# Format all files
npm run format

# Show HTML report
npm run test:report

# Open interactive trace viewer
npx playwright show-trace test-results//trace.zip

# Show Playwright codegen
npx playwright codegen https://wesendcv.com

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Troubleshooting

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License & Attribution

MIT License — see LICENSE for details.

Built and maintained by Padmaraj Nidagundi
Senior QA Automation Engineer
GitHub · LinkedIn

If this framework saved you time, consider ⭐ starring the repo and sharing it with your QA team!

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Questions or feedback? Open an issue or start a discussion — contributions are welcome!