agent-browser

agent-browser is a plugin for Claude Code from fcakyon/claude-codex-settings. Its manifest loads nothing; the 6 skills it bundles cost 561 tokens per session together, scanned A, original, Apache-2.0.

A browser-automation command-line tool for AI agents. It can navigate web pages, enter information into forms, and test web applications.

In plain words
What is it for?
Use it to automate page navigation, form filling, and browser-based application tests.
Why use it?
It removes the need to perform repetitive browser actions manually during development and testing.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it to automate page navigation, form filling, and browser-based application tests.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add fcakyon/claude-codex-settings
/plugin install agent-browser
About the project

claude-codex-settings is a collection of configurations and reusable extensions for Claude Code, OpenAI Codex, Cursor, and related coding tools. Developers use its skills, commands, hooks, agents, plugins, and MCP servers to shape coding-agent workflows and connect alternative model APIs. The catalogue entries are components of this collection that can be installed into supported coding tools.

fcakyon/claude-codex-settings · 1,178 stars · on GitHub · claudesettings.com

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.

Clone the repo
git clone --depth 1 https://github.com/fcakyon/claude-codex-settings

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 agent-browser

README.md
[![agentmods](https://agentmods.dev/badge/plugins/fcakyon/claude-codex-settings/agent-browser/github.svg)](https://agentmods.dev/plugins/fcakyon/claude-codex-settings/agent-browser)
Your own site
<a href="https://agentmods.dev/plugins/fcakyon/claude-codex-settings/agent-browser"><img src="https://agentmods.dev/badge/plugins/fcakyon/claude-codex-settings/agent-browser/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 agent-browser

Your own site · 80×15
<a href="https://agentmods.dev/plugins/fcakyon/claude-codex-settings/agent-browser"><img src="https://agentmods.dev/badge/plugins/fcakyon/claude-codex-settings/agent-browser.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 6 skills cost 561 tokens a session between them.
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.
Security

Grade A, and why

agent-browser 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 2d 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.

plugins/agent-browser/.claude-plugin/plugin.json · 7 lines

What it actually says

{
  "name": "agent-browser",
  "version": "1.2.1",
  "description": "Drive browsers and Electron apps, run UI QA, and turn websites into API clients.",
  "license": "Apache-2.0"
}
Contents

What it installs

The manifest is a name and a version. 6 skills travel with it, and installing the plugin installs all of them — 561 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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. 2d ago Changed e60ed42c0a06
  2. 15d ago Changed 4f1931e85c26
  3. 1mo ago Changed 4a2dd627f390
  4. 1mo ago First seen · 7 lines scan A 1bc9b93b28a5

Subscribe to this mod's changes

agent-browser is a plugin published in the GitHub repository fcakyon/claude-codex-settings (1,178 stars, last pushed yesterday), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.