What it does. A CLI for controlling browsers with sandboxed JavaScript scripts.
Named daemon-launched browsers persist by default. For unattended work,
--idle-timeout 5m
closes each launched browser after inactivity while preserving its profile and login state. The setting never closes Chrome attached with
--connect
; use
--idle-timeout 0
to disable configured cleanup.
When to use it. Browser automation with persistent page state. Use when users ask to navigate websites, fill forms, take screenshots, extract web data, test web apps, or automate browser workflows. Trigger phrases…
Install
npx skills add SawyerHood/dev-browser --skill dev-browser
Or copy the skill folder manually:
git clone https://github.com/SawyerHood/dev-browser.git
cp -r dev-browser/skills/dev-browser/ ~/.claude/skills/dev-browser
Source: SawyerHood/dev-browser — 6,586 stars, MIT, last pushed 2026-07-15.