puppeteer-skill

puppeteer-skill is a skill for Claude Code, Codex from LambdaTest/agent-skills. It costs 47 tokens per session (1,022 once invoked), scanned A, original, MIT.

A guide for generating Puppeteer scripts in JavaScript. Puppeteer controls a headless Chrome browser, which runs without a visible window, for browser actions and checks.

In plain words
What is it for?
Use it to automate websites, scrape page data, test browser flows, and generate PDFs from web pages.
Why use it?
It provides patterns for handling navigation, page loading, network requests, and other timing issues that can make browser scripts unreliable.

Skill for Claude CodeCodex

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

Good fit Use it to automate websites, scrape page data, test browser flows, and generate PDFs from web pages.

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Install with agentmods
npx agentmods add skills/lambdatest/agent-skills/puppeteer-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 puppeteer-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 puppeteer-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/lambdatest/agent-skills/puppeteer-skill/github.svg)](https://agentmods.dev/skills/lambdatest/agent-skills/puppeteer-skill)
Your own site
<a href="https://agentmods.dev/skills/lambdatest/agent-skills/puppeteer-skill"><img src="https://agentmods.dev/badge/skills/lambdatest/agent-skills/puppeteer-skill/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 puppeteer-skill

Your own site · 80×15
<a href="https://agentmods.dev/skills/lambdatest/agent-skills/puppeteer-skill"><img src="https://agentmods.dev/badge/skills/lambdatest/agent-skills/puppeteer-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,022 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 pass 7 Sept 2026
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 $0.00047 $0.01022
Opus 5 $0.00023 $0.00511
Sonnet 5 $0.00009 $0.00204
Haiku 4.5 $0.00005 $0.00102

Measured 12d ago against content hash a0d642f6384f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

puppeteer-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 12d 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.

puppeteer-skill/SKILL.md · 137 lines

How it starts

The opening of the file, as written. The whole thing — 137 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Puppeteer Automation Skill

Core Patterns

Basic Script

const puppeteer = require('puppeteer');

(async () => {
    const browser = await puppeteer.launch({ headless: 'new' });
    const page = await browser.newPage();
    await page.setViewport({ width: 1280, height: 720 });

    await page.goto('https://example.com', { waitUntil: 'networkidle0' });
    await page.type('#username', '[email protected]');
    await page.type('#password', 'password123');
    await page.click('button[type="submit"]');
    await page.waitForNavigation({ waitUntil: 'networkidle0' });

    const title = await page.title();
    console.log('Title:', title);

    await browser.close();
})();

Wait Strategies

// Wait for selector
await page.waitForSelector('.result', { visible: true, timeout: 10000 });

// Wait for navigation
await Promise.all([
    page.waitForNavigation({ waitUntil: 'networkidle0' }),
    page.click('a.nav-link'),
]);

// Wait for function
await page.waitForFunction('document.querySelector(".count").innerText === "5"');

// Wait for network request
const response = await page.waitForResponse(resp =>
    resp.url().includes('/api/data') && resp.status() === 200
);

Screenshot & PDF

await page.screenshot({ path: 'screenshot.png', fullPage: true });
await page.pdf({ path: 'page.pdf', format: 'A4', printBackground: true });

Network Interception

await page.setRequestInterception(true);
page.on('request', request => {
    if (request.resourceType() === 'image') request.abort();
    else request.continue();
});

// Mock API
page.on('request', request => {
    if (request.url().includes('/api/data')) {
        request.respond({
            status: 200,
            contentType: 'application/json',
            body: JSON.stringify({ items: [] }),
        });
    } else request.continue();
});

TestMu AI Cloud

For full setup, capabilities, and shared capability reference, see reference/cloud-integration.md.

Read the full file on GitHub · 137 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. 12d ago First seen · 137 lines · 47 tokens per session scan A a0d642f6384f

Subscribe to this mod's changes

puppeteer-skill is a skill published in the GitHub repository LambdaTest/agent-skills (366 stars, last pushed 1mo ago), licensed MIT. It adds 47 tokens to every session and 1,022 once invoked, about $0.0002 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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