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@browserbasehq/stagehand@3.5.0

givanz/Vvveb@browserbasehq/stagehand@3.5.0Jun 3, 2026by github-actions[bot]

AI Summary

A minor release introducing new capabilities such as screenshot extraction, native clipboard support, and selective removal of browser default flags. It also adds support for newer AI models including Claude Opus 4.8 and Vertex AI.

Key Highlights

  • Add `screenshot` option to `extract()` function
  • Add `ignoreDefaultArgs` option to selectively remove Chrome default flags
  • Add native clipboard API support
  • Add Claude Opus 4.8 to supported CUA model whitelist
  • Add Vertex auth parameters to core and server API schemas

New Features

  • Screenshot extraction in extract function
  • Selective removal of browser default arguments
  • Native clipboard API integration
  • Claude Opus 4.8 model support
  • Vertex AI authentication support

Full Release Notes

### Minor Changes

-   [#2149](https://github.com/browserbase/stagehand/pull/2149) [`6e75725`](https://github.com/browserbase/stagehand/commit/6e75725b39898b3cbad681272009a69d94ca8238) Thanks [@miguelg719](https://github.com/miguelg719)! - Added a `screenshot` option to `extract()` that sends the current viewport screenshot with the a11y tree for extraction.

-   [#2127](https://github.com/browserbase/stagehand/pull/2127) [`78bcde8`](https://github.com/browserbase/stagehand/commit/78bcde88e28f147acc6ca9aef9753cd96c870c35) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - Add `ignoreDefaultArgs` option to selectively remove chrome-launcher's built-in default flags (e.g. `--disable-extensions`) when running locally

-   [#2160](https://github.com/browserbase/stagehand/pull/2160) [`49575d6`](https://github.com/browserbase/stagehand/commit/49575d62f56efbd3a91359a816823cbf70fde4fd) Thanks [@monadoid](https://github.com/monadoid)! - Forward constructor and request model configuration when initializing API-backed sessions.

-   [#2171](https://github.com/browserbase/stagehand/pull/2171) [`dc1445d`](https://github.com/browserbase/stagehand/commit/dc1445df805cd3ad1f577278f978932244023a2e) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - add native clipboard API

### Patch Changes

-   [#2146](https://github.com/browserbase/stagehand/pull/2146) [`3a53ed4`](https://github.com/browserbase/stagehand/commit/3a53ed4ea97e079b295059a338f1ef8e768f8919) Thanks [@shriyatheunicorn](https://github.com/shriyatheunicorn)! - Pass local browser launch options through when attaching over CDP so explicit viewport settings are respected.

-   [#2107](https://github.com/browserbase/stagehand/pull/2107) [`8fc16d2`](https://github.com/browserbase/stagehand/commit/8fc16d2e1845807103da6e62928b28e0de03ab90) Thanks [@miguelg719](https://github.com/miguelg719)! - Fix Anthropic CUA `triple_click` action mapping.

-   [#2118](https://github.com/browserbase/stagehand/pull/2118) [`3e95a87`](https://github.com/browserbase/stagehand/commit/3e95a8722a46bd7fca4d79644fe4605d7dc61bf6) Thanks [@monadoid](https://github.com/monadoid)! - Add Vertex auth parameters to the core and server API schemas.

-   [#2126](https://github.com/browserbase/stagehand/pull/2126) [`ebbdcd3`](https://github.com/browserbase/stagehand/commit/ebbdcd33cbd137d36c9469c5ef0f531ee45a0bd8) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - fix(core): import ToolSet from ai public export

-   [#2120](https://github.com/browserbase/stagehand/pull/2120) [`12703a6`](https://github.com/browserbase/stagehand/commit/12703a6659853e2afe2d28df71d8a9b916f9df65) Thanks [@miguelg719](https://github.com/miguelg719)! - Fix structuredOutputMode for newer Anthropic models

-   [#2170](https://github.com/browserbase/stagehand/pull/2170) [`1db5f1c`](https://github.com/browserbase/stagehand/commit/1db5f1c1937b3943e13d8a43cbdeee0a6906ff75) Thanks [@Kylejeong2](https://github.com/Kylejeong2)! - Add Claude Opus 4.8 to the supported CUA model whitelist.

-   [#2116](https://github.com/browserbase/stagehand/pull/2116) [`cb586a1`](https://github.com/browserbase/stagehand/commit/cb586a14e46e616caa712afa6b7ceb4dc42b7fc6) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - include "[selected]" or "[checked]" state in snapshot

-   [#2129](https://github.com/browserbase/stagehand/pull/2129) [`765861c`](https://github.com/browserbase/stagehand/commit/765861c04c46851663919277f330d27a87bae823) Thanks [@miguelg719](https://github.com/miguelg719)! - Add a backend-selectable v3 evaluator facade while preserving the legacy evaluator path.

-   [#2157](https://github.com/browserbase/stagehand/pull/2157) [`2cd60a3`](https://github.com/browserbase/stagehand/commit/2cd60a34b0cfd7ae9399dd1a1779df096e86369b) Thanks [@miguelg719](https://github.com/miguelg719)! - Add verifier trajectory, rubric, and evaluation-result types with normalized public naming.

-   [#2131](https://github.com/browserbase/stagehand/pull/2131) [`e102a89`](https://github.com/browserbase/stagehand/commit/e102a89c903d2f5badb335dd7b7f52f16b275151) Thanks [@miguelg719](https://github.com/miguelg719)! - Capture verifier trajectory evidence from agent evidence callbacks for offline scoring.