use-isolated-browser

use-isolated-browser is a command for coding agents from OpenLinker-ai/openlinker-plugin. It costs 9 tokens per session (94 once invoked), scanned A, original, Apache-2.0.

A command for using a client-owned isolated web browser through the bundled browser skill and browser_session tool.

In plain words
What is it for?
It helps coding agents open or explain browser sessions while keeping authentication information and session ownership out of the command.
Why use it?
It clarifies that the browser belongs to the client, not the service provider, and prevents requests for credentials or private session details.

Command

Part of the openlinker plugin — 6 skills, 4 commands, 1 MCP server 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 commands/openlinker-ai/openlinker-plugin/use-isolated-browser
Clone the repo
git clone --depth 1 https://github.com/OpenLinker-ai/openlinker-plugin

Or install openlinker, the plugin that ships this one along with the rest of its 6 skills, 4 commands, 1 MCP server.

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-isolated-browser

README.md
[![agentmods](https://agentmods.dev/badge/commands/openlinker-ai/openlinker-plugin/use-isolated-browser.svg)](https://agentmods.dev/commands/openlinker-ai/openlinker-plugin/use-isolated-browser)
Your own site
<a href="https://agentmods.dev/commands/openlinker-ai/openlinker-plugin/use-isolated-browser"><img src="https://agentmods.dev/badge/commands/openlinker-ai/openlinker-plugin/use-isolated-browser.svg" alt="Measured on agentmods" height="20"></a>
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 94 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 5.1 $0.00009 $0.00094
Opus 5 $0.00005 $0.00047
Sonnet 5 $0.00002 $0.00019
Haiku 4.5 $0.00001 $0.00009

Measured 5d ago against content hash 12f1e0118a07, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

use-isolated-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 5d 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.

platforms/claude/openlinker/commands/use-isolated-browser.md · 12 lines

What it actually says

Use the bundled use-isolated-browser skill and the browser_session tool. The Browser is a client tool, not a Provider computer API. Never request or accept channel credentials, lease contents, server-authoritative attachment identity, Provider API keys, User Tokens, or Agent Tokens in this command.

User request: $ARGUMENTS

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. 5d ago First seen · 12 lines · 9 tokens per session scan A 12f1e0118a07

Subscribe to this mod's changes

use-isolated-browser is a command published in the GitHub repository OpenLinker-ai/openlinker-plugin (0 stars, last pushed 3d ago), licensed Apache-2.0. It adds 9 tokens to every session and 94 once invoked, about $0.0000 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.

Related

Other commands, from other repositories