Browser Run adds structured handoff for Human in the Loop

Browser Run now supports structured handoff for Human in the Loop workflows. Using Cloudflare-specific CDP commands, your agent can signal that it needs help, a human steps in through Live View to handle the task, and the agent resumes once the work is done.

For agents running multi-step browser workflows, a single login wall or unexpected prompt can fail the entire run. Previously, scripts had to manage human intervention manually by sharing a Live View URL and polling for completion. Structured handoff replaces this with a formal pause-and-resume flow.

The following example requests human intervention for a login page and waits for the human to finish before continuing:

const cdp = await page.createCDPSession(); // Get Live View URL for the human operator const { devtoolsFrontendUrl } = await cdp.send("Cloudflare.getLiveView", { mode: "tab", }); console.log(`Human input needed: ${devtoolsFrontendUrl}`); // Request human intervention and wait for completion const handoffComplete = new Promise((resolve) => { cdp.once("Cloudflare.handoffComplete", resolve); }); await cdp.send("Cloudflare.handoff", { instructions: "Please log in with your credentials", timeout: 600000, }); const result = await handoffComplete; console.log(result.success ? "Handoff complete" : `Failed: ${result.reason}`);

Refer to the Human in the Loop documentation for the full API reference, examples, and best practices.