stagehand-server-v3/v3.7.0

browserbase/stagehandstagehand-server-v3/v3.7.0May 27, 2026by github-actions[bot]

AI Summary

This update introduces a new verifier system with evaluator backends, trajectory recording, and improvements to the Extract functionality.

Key Highlights

Added `screenshot` option to Extract
Introduced evaluator backend facade
Added verifier evaluator shell and types
Removed Braintrust API key requirement

New Features

Added screenshot option to Extract
Added evaluator backend facade
Added verifier evaluator shell
Record agent trajectories

Full Release Notes

## What's Changed
* Add `screenshot` option to Extract by @miguelg719 in https://github.com/browserbase/stagehand/pull/2149
* feat(verifier): add evaluator backend facade by @miguelg719 in https://github.com/browserbase/stagehand/pull/2129
* Workflow: publish eval results by @miguelg719 in https://github.com/browserbase/stagehand/pull/2093
* fix[evals] remove braintrust api key requirement (#2145) by @miguelg719 in https://github.com/browserbase/stagehand/pull/2153
* Delete packages/server-v4 entirely for now by @pirate in https://github.com/browserbase/stagehand/pull/2151
* feat(verifier): add verifier evaluator shell and types by @miguelg719 in https://github.com/browserbase/stagehand/pull/2157
* feat(verifier): record agent trajectories by @miguelg719 in https://github.com/browserbase/stagehand/pull/2131
* Fix SDK API reference parameter labels by @monadoid in https://github.com/browserbase/stagehand/pull/2164
* [chore]: update lockfile by @seanmcguire12 in https://github.com/browserbase/stagehand/pull/2168
* [chore]: bump `ws` dep by @seanmcguire12 in https://github.com/browserbase/stagehand/pull/2169
* [STG-1756] forward Vertex model config by @monadoid in https://github.com/browserbase/stagehand/pull/2160


**Full Changelog**: https://github.com/browserbase/stagehand/compare/stagehand-server-v3/v3.6.10...stagehand-server-v3/v3.7.0