# agent-browser 0.42 — Vercel's agent browser CLI can record and replay flows

> Agents can now record a browser task once and replay it, falling back step by step when a faster path fails.

- Org: Vercel Labs
- Date: 2026-11-10
- Category: tool, repo
- Source: https://github.com/vercel-labs/agent-browser/releases/tag/v0.42.0
- Canonical page: https://ai-tldr.dev/releases/vercel-labs-agent-browser-0-42/

## In short

agent-browser 0.42.0, Vercel Labs' Rust browser CLI for AI agents, adds experimental saved flows that record a browser task once and replay its requests. The 49.9k-star repo is on GitHub's daily trending list.

## What it is

Saved flows are the headline of agent-browser 0.42.0, released on November 10, 2026. The experimental feature records a browser task once and replays its requests later, so an agent does not have to click through the same pages again. agent-browser itself is Vercel Labs' Rust CLI that lets an AI agent drive a browser one shell command at a time.

## How it works

A replay tries the cheapest path first: direct HTTP requests, then requests sent from inside the page, then a replay of the recorded commands, and it saves whichever tier worked. Runs only contact public addresses. The rest of the tool is unchanged: accessibility-tree snapshots give each element a ref like @e1, and a per-session daemon controls Chrome over the DevTools Protocol.

## Why it matters

Repeated browser chores, such as checking a dashboard or submitting the same form, cost an agent many snapshot-and-click steps. Replaying the underlying requests can turn them into a few fast calls. The release also fixes session reuse and Safari/iOS sessions and tells agents to prefer snapshots over screenshots; the npm package now needs Node 22 or later.

## Who it's for

developers giving coding agents a browser

## Try it

npm install -g agent-browser && agent-browser install

## Links

- [v0.42.0 Release Notes](https://github.com/vercel-labs/agent-browser/releases/tag/v0.42.0)
- [GitHub Repo](https://github.com/vercel-labs/agent-browser)
- [Docs](https://agent-browser.dev)
- [GitHub Trending](https://github.com/trending)