Claude's API adds a Browser Use tool; Computer Use hits GA
Both shed their beta headers; the Files and Skills APIs go GA too, and agent web tools gain domain allow/block lists.
Copy markdown
A browser your app drives, natively
The new `browser_toolset_20260801` is a client toolset for driving a browser your own app hosts — Claude reads the page's accessibility tree, elements, forms and tabs, and controls form input. That's the missing piece for an agent that clicks through a real site without gluing together a separate scraper stack.
Computer Use drops the beta header
`computer_toolset_20260801` is now GA — no beta header — and adds batch actions (several actions in one turn, so fewer round-trips and tokens), zoom on by default, and per-member `configs`. Existing integrations should migrate off the old `computer_20251124` build.
Files and Skills APIs go GA
`/v1/files` picks up file expiration (`expires_in_seconds` / `expires_at`) plus `ids[]`-filtered pagination, and `/v1/skills` no longer needs the `skills-2025-10-02` header. Two fewer beta flags to strip out of your production code.
Fence your agent's web access by domain
Managed Agents' web search and fetch tools now take `allowed_domains` or `blocked_domains`, and self-hosted sandbox sessions get a memory store. You can pin an autonomous agent to a trusted set of sources before you ever let it browse.
Elsewhere: Claude Tag now reads the whole channel
Anthropic dropped the per-message classifier behind Claude in Slack — it now weighs full-channel context, is ~30% better at judging when *not* to chime in, and the extra context "does not count toward usage or spend limits." Teams and Enterprise only.