cypress

cypress is a skill for Claude Code from aks-builds/quality-skills. It costs 118 tokens per session (2,720 once invoked), scanned A, original, MIT.

A guide to Cypress, a JavaScript and TypeScript tool for testing web applications in real browsers. It covers end-to-end tests, component tests, browser interactions, network stubbing, sessions, configuration, and CI runs.

In plain words
What is it for?
Use it to create, debug, configure, and run Cypress tests for pages, components, browser flows, mocked requests, logged-in sessions, and continuous integration.
Why use it?
It helps developers write and stabilize browser tests without relying on made-up Cypress commands or settings. It also highlights limits around Safari, multiple origins, and non-JavaScript test languages.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the quality-skills plugin — 57 skills shipped together

Good fit Use it to create, debug, configure, and run Cypress tests for pages, components, browser flows, mocked requests, logged-in sessions, and continuous integration.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aks-builds/quality-skills/cypress
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 aks-builds/quality-skills --skill cypress
Clone the repo
git clone --depth 1 https://github.com/aks-builds/quality-skills

Made for: Claude Code.

Or install quality-skills, the plugin that ships this one along with the rest of its 57 skills.

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 cypress

README.md
[![agentmods](https://agentmods.dev/badge/skills/aks-builds/quality-skills/cypress/github.svg)](https://agentmods.dev/skills/aks-builds/quality-skills/cypress)
Your own site
<a href="https://agentmods.dev/skills/aks-builds/quality-skills/cypress"><img src="https://agentmods.dev/badge/skills/aks-builds/quality-skills/cypress/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 cypress

Your own site · 80×15
<a href="https://agentmods.dev/skills/aks-builds/quality-skills/cypress"><img src="https://agentmods.dev/badge/skills/aks-builds/quality-skills/cypress.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 118 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,720 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 $0.00118 $0.02720
Opus 5 $0.00059 $0.01360
Sonnet 5 $0.00024 $0.00544
Haiku 4.5 $0.00012 $0.00272

Measured 10d ago against content hash dc96a38d5ed0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

cypress 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 10d 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/cypress/SKILL.md · 256 lines

How it starts

The opening of the file, as written. The whole thing — 256 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cypress

You are an expert in Cypress (E2E and component testing). Your goal is to help engineers design, implement, and stabilize Cypress tests — commands, network stubbing, sessions, custom commands, configuration, and CI execution — without fabricating command signatures, options, or config keys. When unsure, point the reader to docs.cypress.io for the version they are running.

Initial Assessment

Check .agents/qa-context.md (fallback: .claude/qa-context.md) before answering. Pay attention to:

  • Languages used for tests — Cypress is JS/TS only. If the team's primary test language is anything else, surface that constraint immediately.
  • Browsers in scope — Cypress runs in real browsers (Chrome family, Firefox, Electron, WebKit-experimental). It does not run in Safari proper. If WebKit/Safari coverage is mandatory, consider Playwright (see the playwright skill).
  • Cross-origin needs — Cypress runs in a single domain at a time. Cross-origin requires cy.origin(). If the app crosses many origins per test (federated identity, embedded iframes from different origins), evaluate carefully.
  • Component testing — Cypress supports React, Vue, Angular, Svelte, and others; check what's installed.
  • CI provider and budget — Cypress Cloud (formerly Dashboard) provides auto-parallelization; without it, you shard yourself.

If the file does not exist, ask: language, browsers in scope, single-origin or cross-origin app, E2E only or component testing too, and what CI is running tests.


Why Cypress

  • In-browser runner — tests execute inside the browser as part of the same event loop as the app. The debugger, network panel, and source maps are all available.
  • Time-travel debugger — every command snapshot is replayable in the runner UI.
  • Automatic retries — assertions and queries retry until they pass or time out.
  • Component testing — same runner for unit-level component tests.
  • Network stubbingcy.intercept is the standard way to mock, modify, or assert on HTTP traffic.

Read the full file on GitHub · 256 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. 10d ago First seen · 256 lines · 118 tokens per session scan A dc96a38d5ed0

Subscribe to this mod's changes

cypress is a skill published in the GitHub repository aks-builds/quality-skills (2 stars, last pushed today), licensed MIT. It adds 118 tokens to every session and 2,720 once invoked, about $0.0006 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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