Running E2E Tests

What it does

When your agent uses it

• Performing specialized testing
• With phrases like run end-to-end tests
• Test user flows
• Execute E2E suite

Example prompts

• “run end-to-end tests”
• “test user flows”
• “execute E2E suite”
• “/running-e2e-tests”

Requirements

• Node.js
• Compatibility (from SKILL.md): Designed for Claude Code
• Pre-approved tools (allowed-tools): Read, Write, Edit, Grep, Glob, Bash(test:e2e-*)

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

1. 1Identify critical user journeys to cover
2. 2Create page object models (POM) for reusable page interactions
3. 3Write E2E test files organized by user journey
4. 4Handle authentication efficiently
5. 5Configure multi-browser and responsive testing
6. 6Add retry and stability mechanisms
7. 7Generate test reports with screenshots, traces, and video on failure.

What it can do on your machine

Read from SKILL.md and the folder at commit 80f86df. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Read
  • Write
  • Edit
  • Grep
  • Glob
  • Bash(test:e2e-*)

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships 1 file in scripts/, which the agent can run.

  Shell commands in SKILL.md call:

  • npx

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Links to these hosts (documentation or services it may open):

  • playwright.dev
  • docs.cypress.io
  • martinfowler.com

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

• Compatibility

  Designed for Claude Code

  From compatibility in the SKILL.md frontmatter.

Context cost

Running E2E Tests loads about 1.5k tokens when it runs, and up to ~1.5k if it reads all its reference files. Until then it costs about 59 tokens; SKILL.md has 513 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~59

When it runs · the whole SKILL.md, loaded when a task matches

~1.5k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~1.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit 80f86df, republished under its MIT licence (© jeremylongshore). 513 words, ~1,490 tokens.

name

running-e2e-tests

description

Execute end-to-end tests covering full user workflows across frontend and backend. Use when performing specialized testing. Trigger with phrases like "run end-to-end tests", "test user flows", or "execute E2E suite".

allowed-tools

Read, Write, Edit, Grep, Glob, Bash(test:e2e-*)

compatibility

Designed for Claude Code

version

1.21.0

author

Jeremy Longshore <jeremy@intentsolutions.io>

license

MIT

tags

testing, workflow, e2e-tests

import { test, expect } from '@playwright/test';

test('new user can register and see dashboard', async ({ page }) => {
  await page.goto('/register');
  await page.getByTestId('name-input').fill('Test User');
  await page.getByTestId('email-input').fill('test@example.com');
  await page.getByTestId('password-input').fill('SecurePass123!');
  await page.getByTestId('register-button').click();

  await expect(page).toHaveURL(/\/dashboard/);
  await expect(page.getByTestId('welcome-message')).toContainText('Test User');
});

export class LoginPage {
  constructor(private page: Page) {}
  async login(email: string, password: string) {
    await this.page.goto('/login');
    await this.page.getByTestId('email').fill(email);
    await this.page.getByTestId('password').fill(password);
    await this.page.getByTestId('submit').click();
    await this.page.waitForURL(/\/dashboard/);
  }
}

export default defineConfig({
  projects: [
    { name: 'chromium', use: { ...devices['Desktop Chrome'] } },
    { name: 'firefox', use: { ...devices['Desktop Firefox'] } },
    { name: 'mobile', use: { ...devices['iPhone 14'] } },
  ],
  use: { screenshot: 'only-on-failure', trace: 'on-first-retry' },
});

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (scripts, references, assets) in skills/.curated/running-e2e-tests of jeremylongshore/tons-of-skills-marketplace.

• SKILL.md
• assets/README.md
• references/README.md
• scripts/README.md

Open the folder on GitHubat commit 80f86df