Reported News
Vercel's agent-browser 0.42.0 adds experimental saved flows that replay a recorded browser task
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.
- Changes reported
- 5
- listed below, each from a source we read
- We tested
- Not tested yet
- reported from sources; we did not run it ourselves
- Gaps we flag
- 3
- things we could not verify
- Sources
- 1
- 1 primary, linked below
What changed
| # | What the source says | Status |
|---|---|---|
| 01 | 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. | Reported |
| 02 | 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. | Reported |
| 03 | The MCP server now lists only the shared arguments each tool actually uses, and a fix stops MCP tool results from repeating JSON stdout. | Reported |
| 04 | 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. | Reported |
| 05 | 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. | Reported |
reported by the sourcemeasured or run by usnot verified
Primary source: GitHub release: vercel-labs/agent-browser v0.42.0. We are the fast, independent index; the vendor’s own page is the source of record for this release.
In the source’s words
“record a browser task once, then replay its requests”
“Runs send requests only to public addresses”
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.
This brief is Reported: written from the sources below, not from running the release ourselves.
Sources
- GitHub release: vercel-labs/agent-browser v0.42.0primary source · fetched 2026-11-10
Related
Spotted an error? See our corrections policy or email the address on the contact page. Markdown version for agents: /news/vercel-agent-browser-0-42-saved-flows.md
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