browser-test

browser-test is a skill for Claude Code from alfredolopez80/multi-agent-ralph-loop. It costs 83 tokens per session (875 once invoked), scanned A, original, no licence file.

A tool for checking websites in a real browser with Chrome DevTools and Playwright, a browser-automation library. It can also take screenshots, run Lighthouse audits, and inspect errors and network activity.

In plain words
What is it for?
It is for verifying frontend changes, checking accessibility, testing performance, and comparing pages visually.
Why use it?
It helps find visual, accessibility, performance, console, and loading problems that may not appear from reading the code alone.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Good fit It is for verifying frontend changes, checking accessibility, testing performance, and comparing pages visually.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/alfredolopez80/multi-agent-ralph-loop/browser-test
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 alfredolopez80/multi-agent-ralph-loop --skill browser-test
Clone the repo
git clone --depth 1 https://github.com/alfredolopez80/multi-agent-ralph-loop

Made for: Claude Code.

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 browser-test

README.md
[![agentmods](https://agentmods.dev/badge/skills/alfredolopez80/multi-agent-ralph-loop/browser-test/github.svg)](https://agentmods.dev/skills/alfredolopez80/multi-agent-ralph-loop/browser-test)
Your own site
<a href="https://agentmods.dev/skills/alfredolopez80/multi-agent-ralph-loop/browser-test"><img src="https://agentmods.dev/badge/skills/alfredolopez80/multi-agent-ralph-loop/browser-test/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 browser-test

Your own site · 80×15
<a href="https://agentmods.dev/skills/alfredolopez80/multi-agent-ralph-loop/browser-test"><img src="https://agentmods.dev/badge/skills/alfredolopez80/multi-agent-ralph-loop/browser-test.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 875 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 unknown 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 $0.00083 $0.00875
Opus 5.5 $0.00033 $0.00350
Sonnet 5.5 $0.00017 $0.00175
Haiku 4.5 $0.00008 $0.00088

Measured 1mo ago against content hash 251f9af37c8a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

browser-test 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 1mo 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.

.claude/skills/browser-test/SKILL.md · 114 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 1mo ago Changed · -2 lines 251f9af37c8a
  2. 1mo ago First seen · 116 lines · 83 tokens per session scan A 88235b0c59c1

Subscribe to this mod's changes

browser-test is a skill published in the GitHub repository alfredolopez80/multi-agent-ralph-loop (146 stars, last pushed 1mo ago), with no licence file. It adds 83 tokens to every session and 875 once invoked, about $0.0003 per session on Opus 5.5. 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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