cmux-browser

Browse and extract without stealing focus.

browser automation

What it does

Automates cmux browser surfaces to open sites, interact with pages, wait for state, and extract data without stealing focus.

When to use it

Use when browser automation requires explicit surface targeting and preserved visible focus.

Give it website URLs or browser surfaces; it opens or targets them, performs browser actions, and returns extracted data.

What you provide

This skill

browser cookies

Write

Clears browser cookies (irreversible)

web pages

Read

Reads web pages

browser authentication state

Write

Saves browser auth state

browser artifacts directory

Write

Writes browser artifacts

The cmux binary must be installed and available for the browser commands.

jq is required by the documented shell workflows to extract surface references from JSON.

The authentication workflows take the application username from an environment variable.

The authentication workflows take the application password from an environment variable.