Nothing to try yetTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
Browser ControlArea: what it touches
In DevelopmentKind: in v2.1.242,
What probably matters to youSection of the release
Batch shape enforcement activates only when server auto-mode config sets Chrome navigation true, which nothing here does.
What
Browser tool calls are inspected before they run: a batch must target exactly one tab, may not act on a page after navigating to it in the same batch, may not contain another batch, and switching browsers must be its own call. Violations are denied with a message explaining the correct shape, and the denial is a safety decision the permission classifier cannot approve. Enabled only when the server-supplied auto mode configuration sets Chrome navigation to true, which nothing in this build does locally.
Details
The tab's URL is resolved and compared against the last URL executed for that scope, which is how the navigate-then-act case is detected.
Evidence
Claude in Chrome: a browser_batch cannot act on a page after navigating to it. Issue the navigate on its own, then batch the actions on the loaded page.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
