# Vercel's agent-browser 0.42.0 adds experimental saved flows that replay a recorded browser task

Canonical: https://theagenticweekly.com/news/vercel-agent-browser-0-42-saved-flows · Evidence: Reported · First seen: 2026-11-10 00:41 UTC · Source published: 2026-11-10 00:37 UTC · Brief published: 2026-11-10 01:03 UTC · Updated: 2026-11-10 01:03 UTC · Author: Agentic Weekly

> Vercel Labs' agent-browser v0.42.0, released on GitHub on November 10, 2026 (UTC), adds experimental saved flows that "record a browser task once, then replay its requests," trying direct HTTP first, then an in-page request, then a replay of the recorded commands. It also trims MCP tool arguments and now requires Node 22.

## What changed

- Saved flows (experimental): record a browser task once, then replay its requests. Each run tries direct HTTP first, then the same request from the page, then a replay of the recorded commands, and saves whichever tier worked.
- Saved-flow runs send requests only to public addresses, and saving waits for in-flight requests and follows redirects to the end, according to the release notes.
- The MCP server now lists only the shared arguments each tool actually uses, and a fix stops MCP tool results from repeating JSON stdout.
- Session reuse and relaunch are now decided in one place in the daemon: a connection target is kept only after an attach succeeds, and security settings persist across daemon restarts. Safari and iOS WebDriver sessions no longer drop.
- The bundled core skill now tells agents to prefer DOM snapshots and take screenshots only when asked or when the DOM cannot represent the content. The package declares a Node 22 minimum.

## In the source's words

> "record a browser task once, then replay its requests"
> (agent-browser v0.42.0 release notes, New Features, https://github.com/vercel-labs/agent-browser/releases/tag/v0.42.0)

> "Runs send requests only to public addresses"
> (agent-browser v0.42.0 release notes, New Features, https://github.com/vercel-labs/agent-browser/releases/tag/v0.42.0)

## What we have not verified

- We did not run this release ourselves; saved flows are labelled experimental by the project and we did not test replay reliability or speed.
- The release notes do not say how saved flows handle logins, cookies or sites that block direct HTTP requests, and we did not check the linked pull requests for that.
- We did not confirm how the public-address restriction is enforced (for example against redirects to private networks) beyond the release-note wording.

## Timeline

- Source published: 2026-11-10 00:37 UTC
- First seen by our watcher: 2026-11-10 00:41 UTC (via GitHub releases: vercel-labs/agent-browser)
- Brief published: 2026-11-10 01:03 UTC

## Sources

- [GitHub release: vercel-labs/agent-browser v0.42.0](https://github.com/vercel-labs/agent-browser/releases/tag/v0.42.0) (primary source) (fetched 2026-11-10)

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## How to cite

Agentic Weekly, "Vercel's agent-browser 0.42.0 adds experimental saved flows that replay a recorded browser task", published 2026-11-10 01:03 UTC, https://theagenticweekly.com/news/vercel-agent-browser-0-42-saved-flows