Add /browser slash command for connecting browser tools to the user's
live Chrome instance via Chrome DevTools Protocol:
/browser connect — connect to Chrome on localhost:9222
/browser connect ws://host:port — custom CDP endpoint
/browser disconnect — revert to default (headless/Browserbase)
/browser status — show current browser mode + connectivity
When connected:
- All browser tools (navigate, snapshot, click, etc.) control the
user's real Chrome — logged-in sessions, cookies, open tabs
- Platform-specific Chrome launch instructions are shown
- Port connectivity is tested immediately
- A context message is injected so the model knows it's controlling
a live browser and should be mindful of user's open tabs
Implementation:
- BROWSER_CDP_URL env var drives the backend selection in browser_tool.py
- New _create_cdp_session() creates sessions using the CDP override
- _get_cdp_override() checked before local/Browserbase selection
- Existing agent-browser --cdp flag handles the actual CDP connection
Inspired by OpenClaw's browser profile system.
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