Stagehand

Headlines · 2

1. Nov 3
   LangChain optimizes Stagehand browser tools for Deep Agents

   LangChain Blog says it compared seven browser-control toolsets for Deep Agents, selected Browserbase’s Stagehand, and refined it using LangSmith traces and evaluations. On WebVoyager, LangChain reports that Stagehand completed 90% of tasks for $1.98, while Playwright MCP completed 78% for $26.71; the team also describes code mode, compact snapshots, and adaptive page-wait handling as efficiency improvements.

   LangChain Blog · 🔥 0
2. Oct 29
   Managed Deep Agents v0.10 adds browser use and async subagents

   Managed Deep Agents v0.10 adds browser use and asynchronous subagents. Browser tools let agents work with websites that lack APIs, while thread- and user-scoped sessions manage browser state. Browser handoff lets people complete sign-in or two-factor prompts themselves, keeping passwords out of model messages and traces. Async subagents can run long tasks in the background while the main agent continues its conversation; users can check, update or cancel those tasks. The release also adds thread-origin records, run-stopping controls, experimental Slack channel handlers and resolveUser support.

   LangChain Blog · 🔥 0

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