Browserbase + LangChain agent hits perfect score in 10 mins after code review
hwchase17 · x · 2026-08-21
A developer shared a practical case of building a web agent using Stagehand (Browserbase) and DeepAgents (LangChain) to play the "Map Tap" city-locating game.
- Initial run: Built from docs, scored 300/1000 points.
- Optimization: Used a coding agent to review the trace and optimize for a smaller model and higher accuracy.
- Result: Returned 10 minutes later to find a perfect score in the trace.
A guide is included on how to integrate Stagehand with Browserbase, exposing run, snapshot, and screenshot tools to the Deep Agent.
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