browser-agent

A browser-automation guide for controlling Chrome and checking web interfaces visually. It covers actions such as navigating, clicking, filling forms, taking screenshots, and testing desktop or mobile views.

In plain words
What is it for?
Automating Chrome tasks, completing forms, capturing screenshots, checking responsive layouts, and testing OAuth flows.
Why use it?
It helps verify how a website behaves and appears in a real browser instead of relying only on source code.

Skill for Claude CodeCodex

Part of the george-setup plugin — 28 skills, 1 command shipped together

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.

agentmods
npx agentmods add skills/george11642/george-plugins/browser-agent
Any agent
npx skills add george11642/george-plugins --skill browser-agent
Clone the repo
git clone --depth 1 https://github.com/george11642/george-plugins

Made for: Claude Code, Codex.

Or install george-setup, the plugin that ships this one along with the rest of its 28 skills, 1 command.

Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,044 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00098 $0.01044
Opus 5 $0.00049 $0.00522
Sonnet 5 $0.00020 $0.00209
Haiku 4.5 $0.00010 $0.00104

Measured 2d ago against content hash 981d663b0d17, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

browser-agent 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/george-setup/skills/browser-agent/SKILL.md · 104 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 2d ago First seen · 104 lines · 98 tokens per session scan A 981d663b0d17

Subscribe to this mod's changes

browser-agent is a skill published in the GitHub repository george11642/george-plugins (2 stars, last pushed 5mo ago), with no licence file. It adds 98 tokens to every session and 1,044 once invoked, about $0.0005 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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