nemojs-skill

nemojs-skill is a skill for Claude Code, Codex from LambdaTest/agent-skills. It costs 66 tokens per session (905 once invoked), scanned A, original, MIT.

A helper for writing Nemo.js browser automation tests in JavaScript. Nemo.js is PayPal's Selenium-based framework for controlling browsers from Node.js, with Mocha tests and Chai checks.

In plain words
What is it for?
Use it to generate JavaScript tests for login flows and other web actions, including checking page URLs and visible elements.
Why use it?
It reduces the boilerplate for starting and closing a browser, finding page elements, waiting for them, and checking results.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to generate JavaScript tests for login flows and other web actions, including checking page URLs and visible elements.

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Install with agentmods
npx agentmods add skills/lambdatest/agent-skills/nemojs-skill
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 LambdaTest/agent-skills --skill nemojs-skill
Clone the repo
git clone --depth 1 https://github.com/LambdaTest/agent-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 nemojs-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/lambdatest/agent-skills/nemojs-skill.svg)](https://agentmods.dev/skills/lambdatest/agent-skills/nemojs-skill)
Your own site
<a href="https://agentmods.dev/skills/lambdatest/agent-skills/nemojs-skill"><img src="https://agentmods.dev/badge/skills/lambdatest/agent-skills/nemojs-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 905 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 129
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
How audits are shown
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 $0.00066 $0.00905
Opus 5 $0.00033 $0.00452
Sonnet 5 $0.00013 $0.00181
Haiku 4.5 $0.00007 $0.00090

Measured 8d ago against content hash 01b75bb01142, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

nemojs-skill 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 8d 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.

nemojs-skill/SKILL.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Nemo.js Automation Skill

PayPal's Selenium-based test automation framework for Node.js.

For TestMu AI cloud execution, see reference/cloud-integration.md and shared/testmu-cloud-reference.md.

Core Patterns

Basic Test (Mocha)

const Nemo = require('nemo');
const { expect } = require('chai');

describe('Login Flow', function() {
  this.timeout(30000);
  let nemo;

  before(async () => {
    nemo = await Nemo();
  });

  after(async () => {
    await nemo.driver.quit();
  });

  it('should login with valid credentials', async () => {
    await nemo.driver.get(nemo.data.baseUrl + '/login');
    const email = await nemo.view._find('#email');
    await email.sendKeys('[email protected]');
    const password = await nemo.view._find('#password');
    await password.sendKeys('password123');
    await nemo.view._find('button[type="submit"]').click();

    await nemo.view._waitVisible('.dashboard', 10000);
    const url = await nemo.driver.getCurrentUrl();
    expect(url).to.include('/dashboard');
  });

  it('should show error for invalid credentials', async () => {
    await nemo.driver.get(nemo.data.baseUrl + '/login');
    await nemo.view._find('#email').sendKeys('[email protected]');
    await nemo.view._find('#password').sendKeys('wrong');
    await nemo.view._find('button[type="submit"]').click();

    await nemo.view._waitVisible('.error', 5000);
    const error = await nemo.view._find('.error');
    const text = await error.getText();
    expect(text).to.include('Invalid');
  });
});

View Locators

await nemo.view._find('#css-id');                    // CSS
await nemo.view._find('.class-name');                // CSS class
await nemo.view._find('[data-testid="login"]');     // Data attribute
await nemo.view._find('xpath://button[@type]');     // XPath prefix
await nemo.view._waitVisible(locator, timeout);     // Wait + find
await nemo.view._finds('.items');                    // Find multiple

Read the full file on GitHub · 135 lines

Files

What ships with it

3 files 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. 8d ago First seen · 135 lines · 66 tokens per session scan A 01b75bb01142

Subscribe to this mod's changes

nemojs-skill is a skill published in the GitHub repository LambdaTest/agent-skills (367 stars, last pushed 1mo ago), licensed MIT. It adds 66 tokens to every session and 905 once invoked, about $0.0003 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 2026-08-30.

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