Cursor rules for Cypress development with API testing

Cursor rules for Cypress development with API testing is a skill for Claude Code, Codex from AmariahAK/atlarix-skills. It costs 8 tokens per session (850 once invoked), scanned A, original, Apache-2.0.

A set of Cursor instructions for writing Cypress API tests in JavaScript or TypeScript. Cypress is a tool for testing web applications, while API tests check requests, responses, status codes, and data without relying only on the user interface.

In plain words
What is it for?
Use it when creating Cypress tests for APIs, validating response schemas with AJV, checking error handling, and keeping tests isolated from existing server data.
Why use it?
It helps create repeatable tests that validate successful and failed API requests, response formats, and important endpoints. It also adapts the test files to the project's use of JavaScript or TypeScript.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Cursor.

Good fit Use it when creating Cypress tests for APIs, validating response schemas with AJV, checking error handling, and keeping tests isolated from existing server data.

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Install with agentmods
npx agentmods add skills/amariahak/atlarix-skills/acr-cypress-api-testing-cursorrules-prompt-file
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.

Any agent
npx skills add AmariahAK/atlarix-skills --skill acr-cypress-api-testing-cursorrules-prompt-file
Clone the repo
git clone --depth 1 https://github.com/AmariahAK/atlarix-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Cursor rules for Cypress development with API testing

README.md
[![agentmods](https://agentmods.dev/badge/skills/amariahak/atlarix-skills/acr-cypress-api-testing-cursorrules-prompt-file/github.svg)](https://agentmods.dev/skills/amariahak/atlarix-skills/acr-cypress-api-testing-cursorrules-prompt-file)
Your own site
<a href="https://agentmods.dev/skills/amariahak/atlarix-skills/acr-cypress-api-testing-cursorrules-prompt-file"><img src="https://agentmods.dev/badge/skills/amariahak/atlarix-skills/acr-cypress-api-testing-cursorrules-prompt-file/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for Cursor rules for Cypress development with API testing

Your own site · 80×15
<a href="https://agentmods.dev/skills/amariahak/atlarix-skills/acr-cypress-api-testing-cursorrules-prompt-file"><img src="https://agentmods.dev/badge/skills/amariahak/atlarix-skills/acr-cypress-api-testing-cursorrules-prompt-file.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 8 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 850 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00008 $0.00850
Opus 5 $0.00004 $0.00425
Sonnet 5 $0.00002 $0.00170
Haiku 4.5 $0.00001 $0.00085

Measured 11d ago against content hash 6ccadd6e544b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

Cursor rules for Cypress development with API testing scanned grade A with 0 findings 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 11d ago.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/acr-cypress-api-testing-cursorrules-prompt-file/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cursor rules for Cypress development with API testing

When to use this skill

Cursor rules for Cypress development with API testing.

Source

Synced from https://github.com/PatrickJS/awesome-cursorrules/tree/main/rules/cypress-api-testing-cursorrules-prompt-file.mdc.

Persona

You are an expert QA engineer with deep knowledge of Cypress and TypeScript, tasked with creating API tests for web applications.

Auto-detect TypeScript Usage

Before creating tests, check if the project uses TypeScript by looking for:

  • tsconfig.json file
  • .ts or .tsx file extensions in cypress/
  • TypeScript dependencies in package.json Adjust file extensions (.ts/.js) and syntax based on this detection.

API Testing Focus

Use the cypress-ajv-schema-validator package to validate API response schemas Focus on testing critical API endpoints, ensuring correct status codes, response data, and schema compliance Tests should verify both successful operations and error handling scenarios Create isolated, deterministic tests that don't rely on existing server state Document schema definitions clearly to improve test maintainability

Best Practices

1 Descriptive Names: Use test names that clearly describe the API functionality being tested 2 Request Organization: Group API tests by endpoint or resource type using describe blocks 3 Schema Validation: Define and validate response schemas for all tested endpoints 4 Status Code Validation: Check appropriate status codes for success and error scenarios 5 Authentication Testing: Test authenticated and unauthenticated requests where applicable 6 Error Handling: Validate error messages and response formats for invalid requests 7 Test Data Management: Use fixtures or factories to generate test data 8 Test Independence: Ensure each test is independent and doesn't rely on other tests 9 Testing Scope: Limit test files to 3-5 focused tests for each API resource

Input/Output Expectations

Read the full file on GitHub · 105 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 105 lines · 8 tokens per session scan A 6ccadd6e544b

Subscribe to this mod's changes

Cursor rules for Cypress development with API testing is a skill published in the GitHub repository AmariahAK/atlarix-skills (2 stars, last pushed 4d ago), licensed Apache-2.0. It adds 8 tokens to every session and 850 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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