agent-browser

A command-line tool for controlling websites through an automated browser, including navigation, clicking, form entry, scraping, screenshots, and web-app testing.

In plain words
What is it for?
Use it to automate website tasks, collect page data, capture screenshots, test web applications, and debug browser behaviour.
Why use it?
It reduces manual browser work and helps investigate problems that appear in a website's console or network activity.

Skill for Claude CodeCodex

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/dannote/dot-pi/agent-browser
Any agent
npx skills add dannote/dot-pi --skill agent-browser
Clone the repo
git clone --depth 1 https://github.com/dannote/dot-pi

Made for: Claude Code, Codex.

Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 100 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00029 $0.00100
Opus 5 $0.00015 $0.00050
Sonnet 5 $0.00006 $0.00020
Haiku 4.5 $0.00003 $0.00010

Measured 3d ago against content hash b52510fc2cb0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

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 3d 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.

skills/agent-browser/SKILL.md · 27 lines

What it actually says

agent-browser

Load current CLI-bundled docs first:

agent-browser skills get core

For complex tasks:

agent-browser skills get core --full
agent-browser skills list

Setup:

npm install -g agent-browser
agent-browser install
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. 3d ago First seen · 27 lines · 29 tokens per session scan A b52510fc2cb0

Subscribe to this mod's changes

agent-browser is a skill published in the GitHub repository dannote/dot-pi (51 stars, last pushed 3d ago), licensed MIT. It adds 29 tokens to every session and 100 once invoked, about $0.0001 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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