stagehand

v@browserbasehq/[email protected] Feature

This release adds 5 notable features for engineering teams evaluating rollout.

Published 1mo AI Agents & Assistants

✓ No known CVEs patched

✓ No known CVEs patched in this version

Topics

agents ai llms playwright puppeteer selenium

Summary

AI summary

Updates Patch Changes, https://github.com/seanmcguire12, and https://github.com/miguelg719 across a mixed release.

Full changelog

#2217 147e310 Thanks @monadoid! - Add Azure OpenAI Microsoft Entra ID model auth support.
#2231 cf3603d Thanks @miguelg719! - Add claude-fable-5 support: native structured outputs via the @ai-sdk/anthropic bump, adaptive thinking (including the new "xhigh" effort) on the agent path, the API's built-in server-side refusal fallback to claude-opus-4-8, and auto tool choice for the final done call on models that reject forced tool use.
#2233 8d7d414 Thanks @seanmcguire12! - Normalize URLs in ActCache key derivation by sorting query parameters before hashing. Semantically equivalent URLs that differ only in parameter order (e.g. ?utm_source=email&id=42 vs ?id=42&utm_source=email) now hit the cache instead of silently missing. Fragments and duplicate keys are preserved.
#2229 fd42e65 Thanks @seanmcguire12! - launch local browser with --enable-features=WebMCPTesting,DevToolsWebMCPSupport by default
#2220 a64c6b7 Thanks @monadoid! - Fix Stagehand-generated shadow-root XPath resolution so deterministic actions can target elements inside web components.
#2132 ed3e566 Thanks @miguelg719! - Add canonical verifier evidence normalization for screenshots and text signals without requiring image dependencies in core installs.
#2133 840aac8 Thanks @miguelg719! - Add the rubric-based verifier engine with normalized public rubric output and bounded failure-step parsing.

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About stagehand

The SDK For Browser Agents

v@browserbasehq/[email protected] Changes `setScreenshotProvider` callback to return `{ base64, mediaType }` instead of bare base64 string.
vstagehand-server-v3/v3.7.0 Delete packages/server-v4 entirely.
vstagehand-server-v3/v3.6.10 Remove cli release workflow
vstagehand-server-v3/v3.6.9 Integration libraries moved to peer dependencies.
v@browserbasehq/[email protected] move playwright-core, puppeteer-core, patchright-core from optional dependencies to peer dependencies