helium-browser
Installation
SKILL.md
Helium Browser
Helium (https://helium.computer/) is a Chromium-based browser. Agent tooling (playwright-cli, chrome-devtools-mcp) can attach to a running Helium with the user's real profile, but only over WebSocket. For all actual automation commands after attaching, use the playwright-cli skill; this skill only covers the Helium-specific connection setup.
Prerequisite: enable remote debugging
The user must enable remote debugging once in Helium:
- Open
helium://inspect/#remote-debugging - Enable remote debugging
This persists across restarts. While enabled, Helium writes a DevToolsActivePort file into its user-data directory and may show a permission prompt when a new debugging session connects.
Key fact: WebSocket-only debug server
Helium's remote debugging server disables the HTTP discovery endpoints. All of these return 404:
http://127.0.0.1:<port>/json/versionhttp://127.0.0.1:<port>/json/list