cookie-sync — Skills — getagentictools

What it does

Chrome (or Chromium, Brave, Edge) with remote debugging enabled

If your browser build exposes chrome://flags/#allow-remote-debugging, enable it and restart the browser

Otherwise, launch with --remote-debugging-port=9222 --user-data-dir=/tmp/chrome-debug and set CDPURL=ws://127.0.0.1:9222

At least one tab open in Chrome

Environment variable: BROWSERBASEAPIKEY

"No open page targets found" → Open at least one tab in Chrome

"WebSocket error" → Chrome may be hung; force quit and reopen it

cookie sync

Source

Repository: https://github.com/browserbase/skills

cookie-sync FAQ

What does the cookie-sync skill do?

Sync cookies from local Chrome to a Browserbase persistent context so the browse CLI can access authenticated sites. Use when the user wants to browse as themselves, sync cookies, or log into sites via Browserbase. Chrome (or Chromium, Brave, Edge) with remote debugging enabled If your browser build exposes chrome://flags/#allow-remote-debugging, enable it and restart the browser

What does cookie-sync require?

Supports domain filtering (only sync cookies you need) and context reuse (refresh cookies without creating a new context). Configuration keys: CDP_URL, BROWSERBASE_API_KEY, SESSION_JSON, CONNECT_URL, SESSION_ID.

How do I install cookie-sync?

Run: npx -y skills add https://github.com/browserbase/skills --skill cookie-sync --agent claude-code — the source lives at github.com/browserbase/skills.

Maintain cookie-sync?

Let people know it's listed here — add the badge (live metrics, light/dark aware) or a plain link to your README or docs.

[cookie-sync on getagentictools](https://getagentictools.com/skills/browserbase-skills-cookie-sync?ref=badge)

npx agentictools info skills/browserbase-skills-cookie-sync

The second line is the CLI lookup for this page — handy in READMEs and docs.