use-browser

use-browser is a skill for Claude Code from 5dive-ai/5dive-plugins. It costs 121 tokens per session (3,722 once invoked), scanned B, original, Apache-2.0.

A skill for controlling a real Chrome browser to inspect websites and perform actions such as clicking, filling forms, searching, or checking pages. It can work with JavaScript pages and logged-in sites that a simple web request cannot use.

In plain words
What is it for?
Use it to browse sites, fill or save forms, check pages, or carry out actions such as adding items to a cart or starring a repository.
Why use it?
It removes the need to treat interactive websites as plain text and helps ensure actions target elements that were actually visible on the page.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the browser plugin — 2 skills shipped together

Good fit Use it to browse sites, fill or save forms, check pages, or carry out actions such as adding items to a cart or starring a repository.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/5dive-ai/5dive-plugins/use-browser
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 5dive-ai/5dive-plugins --skill use-browser
Clone the repo
git clone --depth 1 https://github.com/5dive-ai/5dive-plugins

Made for: Claude Code.

Or install browser, the plugin that ships this one along with the rest of its 2 skills.

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 use-browser

README.md
[![agentmods](https://agentmods.dev/badge/skills/5dive-ai/5dive-plugins/use-browser/github.svg)](https://agentmods.dev/skills/5dive-ai/5dive-plugins/use-browser)
Your own site
<a href="https://agentmods.dev/skills/5dive-ai/5dive-plugins/use-browser"><img src="https://agentmods.dev/badge/skills/5dive-ai/5dive-plugins/use-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 use-browser

Your own site · 80×15
<a href="https://agentmods.dev/skills/5dive-ai/5dive-plugins/use-browser"><img src="https://agentmods.dev/badge/skills/5dive-ai/5dive-plugins/use-browser.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 121 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,722 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00121 $0.03722
Opus 5.5 $0.00048 $0.01489
Sonnet 5.5 $0.00024 $0.00744
Haiku 4.5 $0.00012 $0.00372

Measured 16d ago against content hash 258b883c3a46, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

use-browser scanned grade B with 1 finding 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 16d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

`sudo 5dive browser approvals policy set careful` puts the stop on all four,
plugins/browser/skills/use-browser/SKILL.md · 210 lines

How it starts

The opening of the file, as written. The whole thing — 210 lines — stays where its author put it; the contents beside it link to each section on GitHub.

use-browser — snapshot, act by ref, verify; the owner says yes to pay/post/send/delete

5dive browser drives a real Chrome on this box. Give any page verb a URL and it picks the profile itself: the host's one connected login, or the public profile (nothing logged in) when there is none. A box with zero connected sites can still browse and act on any public page. Connecting a site is only for the owner's own accounts — their inbox, their cart, their repo — and that is the connect-site skill, not this one.

The loop: ONE snapshot per decision

5dive browser snapshot <url> --interactive     # the refs you can act on
5dive browser act <url> --steps='[{"op":"click","selector":"ref=button/Star"}]'
5dive browser act <url> --steps='[{"op":"fill","selector":"ref=textbox/Title","value":"Bug: …"},
                                  {"op":"click","selector":"ref=button/Save draft"}]' --expect='Draft saved'
  1. Snapshot the page with --interactive and pick refs from what it printed. Never invent a ref; a page you have not snapshotted is a page you are guessing about. A web app (Gmail) shows a loading screen first: add --wait-for='[role=main]' (or text=<words> the loaded page has). Exit 76 is not the page — a loading screen or a --wait-for that never came; run it again with a --wait-for, and do not ask anyone to log in.
  2. Act on those refs. Steps are goto fill type click wait_for select press, run in order, in one tab under one lease. Without a URL, act continues on the page a served browser holds. Use type for search boxes and autocompletes that react to keystrokes, and fill for plain inputs: fill sets the value with no key presses, so a suggestion list never opens. type goes key by key ("delay_ms", default 50); pick the suggestion with a wait_for and a click.
  3. Verify. --expect=<regex> grades the page as the steps left it, re-read for up to 5 s so a toast counts. Without it, act only says the steps ran — open the page.png it wrote before you tell anyone it worked.

Read the full file on GitHub · 210 lines

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. 16d ago Changed · +21 lines 258b883c3a46
  2. 17d ago Changed · +72 lines cfb8eb45a25a
  3. 19d ago Changed · +31 lines 1e5925069a9c
  4. 20d ago Changed · +2 lines e6dec30383a9
  5. 21d ago Changed · +11 lines 0bb5fd67a8c0
  6. 23d ago First seen · 73 lines · 121 tokens per session scan B a9cc322e380b

Subscribe to this mod's changes

use-browser is a skill published in the GitHub repository 5dive-ai/5dive-plugins (2 stars, last pushed today), licensed Apache-2.0. It adds 121 tokens to every session and 3,722 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-25.