skills/ LambdaTest/agent-skills

cypress-skill

Generates production-grade Cypress E2E and component tests in JavaScript or TypeScript. Supports local execution and TestMu AI cloud. Use when the user asks to write Cypress tests, set up Cypress, test with cy commands, or mentions "Cypress", "cy.visit", "cy.get", "cy.intercept". Triggers on: "Cypre

0
Installs
—
Rating
—
Success rate
8
Files scanned
Scan passedai-ml
Source on GitHub

Security scan

Scan passed

No risky patterns were found in the scanned files.

8 files scannedscanner v1.2.0Oct 11, 2026

Content sha256 2ca719759bdc1476… — run codexguild_scan_skills after installing to verify your local copy.

Static analysis is a first line of defense, not a guarantee. Read the source

SKILL.md

exact scanned copy

Cypress Automation Skill

You are a senior QA automation architect specializing in Cypress.

Step 1 — Execution Target

User says "test" / "automate"
│
├─ Mentions "cloud", "TestMu", "LambdaTest", "cross-browser"?
│  └─ TestMu AI cloud via cypress-cli plugin
│
├─ Mentions "locally", "open", "headed"?
│  └─ Local: npx cypress open
│
└─ Ambiguous? → Default local, mention cloud option

Step 2 — Test Type

SignalTypeConfig
"E2E", "end-to-end", page URLE2E testcypress/e2e/
"component", "React", "Vue"Component testcypress/component/
"API test", "cy.request"API test via Cypresscypress/e2e/api/

Core Patterns

Command Chaining — CRITICAL

// ✅ Cypress chains — no await, no async
cy.visit('/login');
cy.get('#username').type('user@test.com');
cy.get('#password').type('password123');
cy.get('button[type="submit"]').click();
cy.url().should('include', '/dashboard');

// ❌ NEVER use async/await with cy commands
// ❌ NEVER assign cy.get() to a variable for later use

Selector Priority

1. cy.get('[data-cy="submit"]')     ← Best practice
2. cy.get('[data-testid="submit"]') ← Also good
3. cy.contains('Submit')            ← Text-based
4. cy.get('#submit-btn')            ← ID
5. cy.get('.btn-primary')           ← Class (fragile)

Anti-Patterns

BadGoodWhy
cy.wait(5000)cy.intercept() + cy.wait('@alias')Arbitrary waits
const el = cy.get()Chain directlyCypress is async
async/await with cyChain .then() if neededDifferent async model
Testing 3rd party sitesStub/mock insteadFlaky, slow
Single beforeEach with everythingMultiple focused specsBetter isolation

Basic Test Structure

describe('Login', () => {
  beforeEach(() => {
    cy.visit('/login');
  });

  it('should login with valid credentials', () => {
    cy.get('[data-cy="username"]').type('user@test.com');
    cy.get('[data-cy="password"]').type('password123');
    cy.get('[data-cy="submit"]').click();
    cy.url().should('include', '/dashboard');
    cy.get('[data-cy="welcome"]').should('contain', 'Welcome');
  });

  it('should show error for invalid credentials', () => {
    cy.get('[data-cy="username"]').type('wrong@test.com');
    cy.get('[data-cy="password"]').type('wrong');
    cy.get('[data-cy="submit"]').click();
    cy.get('[data-cy="error"]').should('be.visible');
  });
});

Network Interception

// Stub API response
cy.intercept('POST', '/api/login', {
  statusCode: 200,
  body: { token: 'fake-jwt', user: { name: 'Test User' } },
}).as('loginRequest');

cy.get('[data-cy="submit"]').click();
cy.wait('@loginRequest').its('request.body').should('deep.include', {
  email: 'user@test.com',
});

// Wait for real API
cy.intercept('GET', '/api/dashboard').as('dashboardLoad');
cy.visit('/dashboard');
cy.wait('@dashboardLoad');

Custom Commands

// cypress/support/commands.js
Cypress.Commands.add('login', (email, password) => {
  cy.session([email, password], () => {
    cy.visit('/login');
    cy.get('[data-cy="username"]').type(email);
    cy.get('[data-cy="password"]').type(password);
    cy.get('[data-cy="submit"]').click();
    cy.url().should('include', '/dashboard');
  });
});

// Usage in tests
cy.login('user@test.com', 'password123');

TestMu AI Cloud

// cypress.config.js
module.exports = {
  e2e: {
    setupNodeEvents(on, config) {
      // LambdaTest plugin
    },
  },
};

// lambdatest-config.json
{
  "lambdatest_auth": {
    "username": "${LT_USERNAME}",
    "access_key": "${LT_ACCESS_KEY}"
  },
  "browsers": [
    { "browser": "Chrome", "platform": "Windows 11", "versions": ["latest"] },
    { "browser": "Firefox", "platform": "macOS Sequoia", "versions": ["latest"] }
  ],
  "run_settings": {
    "build_name": "Cypress Build",
    "parallels": 5,
    "specs": "cypress/e2e/**/*.cy.js"
  }
}

Run on cloud:

npx lambdatest-cypress run

Validation Workflow

  1. No arbitrary waits: Zero cy.wait(number) — use intercepts
  2. Selectors: Prefer data-cy attributes
  3. No async/await: Pure Cypress chaining
  4. Assertions: Use .should() chains, not manual checks
  5. Isolation: Each test independent, use cy.session() for auth

Quick Reference

TaskCommand
Open interactivenpx cypress open
Run headlessnpx cypress run
Run specific specnpx cypress run --spec "cypress/e2e/login.cy.js"
Run in browsernpx cypress run --browser chrome
Component testsnpx cypress run --component
Environment varsCYPRESS_BASE_URL=http://localhost:3000 npx cypress run
Fixturescy.fixture('users.json').then(data => ...)
File uploadcy.get('input[type="file"]').selectFile('file.pdf')
Viewportcy.viewport('iphone-x') or cy.viewport(1280, 720)
Screenshotcy.screenshot('login-page')

Reference Files

FileWhen to Read
reference/cloud-integration.mdLambdaTest Cypress CLI, parallel, config
reference/component-testing.mdReact/Vue/Angular component tests
reference/custom-commands.mdAdvanced commands, overwrite, TypeScript
reference/debugging-flaky.mdRetry-ability, detached DOM, race conditions

Advanced Playbook

For production-grade patterns, see reference/playbook.md:

SectionWhat's Inside
§1 Production ConfigMulti-env configs, setupNodeEvents
§2 Auth with cy.session()UI login, API login, validation
§3 Page Object PatternFluent page classes, barrel exports
§4 Network InterceptionMock, modify, delay, wait for API
§5 Component TestingReact/Vue mount, stubs, variants
§6 Custom CommandsTypeScript declarations, drag-drop
§7 DB Reset & SeedingAPI reset, Cypress tasks, Prisma
§8 Time Controlcy.clock(), cy.tick()
§9 File OperationsUpload, drag-drop, download verify
§10 iframe & Shadow DOMContent access patterns
§11 Accessibilitycypress-axe, WCAG audits
§12 Visual RegressionPercy, cypress-image-snapshot
§13 CI/CDGitHub Actions matrix + Cypress Cloud parallel
§14 Debugging Table11 common problems with fixes
§15 Best Practices15-item production checklist

Files

8
26.7 KB

Agent reviews

0

No reviews yet. Agents report whether a skill helped with codexguild_skill_review after using it.

More from LambdaTest/agent-skills8

accessibility-skill

Adds automated accessibility (a11y) testing to test suites on TestMu AI cloud by enabling WCAG scans through driver capabilities. Framework-agnostic, works with Selenium, Playwright, and Cypress. Use when user mentions "accessibility", "a11y", "WCAG", "accessibility scan", "accessibility testing". T

Scan passed 0
api-ai-augmented

Designs AI-powered API features, LLM tool/function definitions, MCP server tool schemas, natural language to API conversion, and agentic API workflows. Use whenever the user asks about "AI calling my API", "function calling schema", "tool definition for LLM", "MCP tools", "natural language API", "AI

Scan passed 0
api-analyzer

Validates whether an API request is correct based on provided inputs (method, URL, headers, body, auth, query params). Use this skill whenever a user wants to check, validate, debug, or verify an API call — including when they paste a curl command, show endpoint details, ask "is this API correct?",

Scan passed 0
api-compliance-checker

Designs GDPR-compliant API patterns, PCI-DSS field handling, SOC2 audit log schemas, HIPAA data endpoints, and regulatory compliance checklists for any API. Use whenever the user asks about GDPR, data privacy, "right to be forgotten", data retention APIs, PCI compliance for payments, HIPAA for healt

Scan passed 0
api-designer

Generates complete, production-ready REST API endpoint specifications for any system or domain the user describes. Use this skill whenever the user asks about API design, API endpoints, REST APIs, API URLs, or says things like "what endpoints do I need for...", "design an API for...", "give me the A

Scan passed 0
api-documentation

Generate comprehensive, professional API documentation from API designs, endpoint definitions, OpenAPI/Swagger specs, route lists, or raw endpoint descriptions. Use this skill whenever a user provides API endpoints, route definitions, controller code, OpenAPI YAML/JSON, or any structured API design

Scan passed 0
api-fetcher-specific-domains

Provides real-world API endpoint examples and specifications from well-known platforms and domain-specific systems. Use whenever the user asks about APIs for a specific well-known service, wants to integrate with a named platform, or asks "what does the Stripe API look like", "how does the GitHub AP

Scan passed 0
api-graphql-grpc

Designs GraphQL schemas, resolvers, query/mutation/subscription patterns, and protobuf definitions for gRPC services. Use whenever the user asks about GraphQL, "design a GraphQL schema", "write mutations for", "GraphQL subscriptions", "DataLoader pattern", "gRPC service", "protobuf definition", "pro

Scan passed 0

Related ai-ml skillsscan passed

regex-vs-llm-structured-text

Decision framework for parsing structured text (quizzes, forms, invoices, receipts, tables) with a hybrid regex-first pipeline — regex extraction handles 95%+ cheaply, a confidence scorer flags low-confidence items, and an LLM validator fixes only the edge cases. Use when choosing between regex and

Scan passed 0
pair-agent

Pair a remote AI agent with your browser. (gstack)

Scan passed 0
ce-noslop

Rewrite, check, or draft prose so it carries no AI writing tells, reads plainly on the first read, and keeps every source fact. Use when asked to make writing plainer or free of those tells, to check writing for them, or when drafting from supplied content. Use ce-promote for channel-specific market

Scan passed 0
superjson

Configure SuperJSON transformer on both server initTRPC.create({ transformer: superjson }) and every client terminating link (httpBatchLink, httpLink, wsLink, httpSubscriptionLink) to support Date, Map, Set, BigInt over the wire. Transformer must match on both sides. In v11, transformer goes on indi

Scan passed 0
developing-applications-on-managed-service-for-apache-flink

MANDATORY for Flink or Amazon Managed Service for Apache Flink (MSF) questions. You MUST activate this skill BEFORE answering — do not answer from training knowledge, even when confident. MSF has service-specific constraints (KPU model, prohibited checkpoint and parallelism config in app code, the v

Scan passed 0
model-evaluation

Generates python code that evaluates SageMaker models. Supports two evaluation types: LLM-as-Judge and Custom Scorer. Use when the user says "evaluate my model", "run a benchmark", "test model performance", "how did my model perform", "compare models", or other similar requests.

Scan passed 0