Workflow Automation · Preview

stagehand

The SDK For Browser Agents

Best fitUsers who want source-backed project understanding before installing it.

Check whether this project matches your task before installing it.

What it can doskill, recipe, host_instruction, eval, preflight

Review the portable capability path.

Before continuingVerify in a sandbox

Do not treat a preview pack as a proven local install.

GitHub snapshot23k stars

1.5k forks · 39 contributors

Official first step Read manual preview Source repository

Preview status · 2026-05-16

What is stagehand?

Stagehand represents a paradigm shift in browser automation by allowing developers to choose when to leverage AI capabilities versus writing explicit code. This hybrid approach provides fl...
Best fit: Users who want source-backed project understanding before installing it.
Capability added to an AI workflow: skill, recipe, host_instruction, eval, preflight
Evidence base: https://github.com/browserbase/stagehand, https://github.com/browserbase/stagehand, https://github.com/browserbase/stagehand#readme
Preview pages are noindex until English quality, canonical, and citation gates pass.
stagehand still needs sandbox verification before production use.

Quick decision

Use this section to decide whether the project is worth a deeper read.

Best forUsers who want source-backed project understanding before installing it.

Match the project to your task before installing it.

Capabilityskill, recipe, host_instruction, eval, preflight

The SDK For Browser Agents

Repositorybrowserbase/stagehand

23k stars · 1.5k forks

What it can do

Translate the upstream project into concrete capabilities the user can judge before installing.

Project Introduction

Related topics: Architecture Overview, CDP Engine, LLM Providers

Sources: [README.md:1-50]()

Architecture Overview

Related topics: Project Introduction, CDP Engine, Core Actions, Server API

Sources: [context.ts:lines]()

CDP Engine

Related topics: Architecture Overview, DOM and Accessibility Tree, Core Actions

Sources: [packages/core/lib/v3/understudy/cdp.ts:1-50]()

Core Actions

Related topics: CDP Engine, DOM and Accessibility Tree, Agent System

Sources: [packages/core/lib/v3/handlers/v3AgentHandler.ts](https://github.com/browserbase/stagehand/blob/main/packages/core/lib/v3/handlers/v3AgentHandler.ts)

DOM and Accessibility Tree

Related topics: CDP Engine, Core Actions, DOM and Accessibility Tree

Source: https://github.com/browserbase/stagehand / Human Manual

Sources: https://github.com/browserbase/stagehand, Human Manual, Project Pack evidence, and downstream validation signals.

Community Discussion Evidence

Project-level external discussion stays visible on the detail page, not only inside the manual.

Stars23k stars

Forks1.5k forks

Contributors39 contributors

Licenseunknown

Community Discussion Evidence

11 source-linked items

Review these external discussions before using stagehand with real data or production workflows. They are review inputs, not standalone proof that the project is production-ready.

01
Storage state persistence broken in Stagehand v3 - userDataDir doesn't w
github / github_issue
02
Reduce Bundle Size
github / github_issue
03
Feature: pay-per-call captcha unstuck via x402 (Onyx Actions)
github / github_issue
04
stagehand/server-v3 v3.6.6
github / github_release
05
stagehand/server-v3 v3.6.5
github / github_release
06
@browserbasehq/[email protected]
github / github_release
07
stagehand/server-v3 v3.6.3
github / github_release
08
stagehand/server-v3 v3.6.2
github / github_release
09
@browserbasehq/[email protected]
github / github_release
10
@browserbasehq/[email protected]
github / github_release
11
Project risk needs validation
GitHub / issue

How to start

Only source-backed commands are shown here. Verify them in an isolated environment first.

Try the prompt first

Test the workflow without installing the upstream project.

preview

Read the Human Manual

Understand inputs, outputs, limits, and failure modes.

manual

Take context to your AI host

Use the compiled assets in your preferred AI environment.

context

Run sandbox verification

Confirm install commands and rollback before using a primary environment.

verify

npx create-browser-app

Official start command · https://github.com/browserbase/stagehand#readme · verified: yes

Human Manual

The English page must expose the real manual, not a short placeholder.

8+ sections · Human Manual

stagehand Manual

Stagehand represents a paradigm shift in browser automation by allowing developers to choose when to leverage AI capabilities versus writing explicit code. This hybrid approach provides fl...

Open the full manual

stagehand Human Manual
Table of Contents
Project Introduction
Related Pages
Project Overview
Key Value Propositions
Architecture Overview
Core Packages

Project Introduction

Related topics: Architecture Overview, CDP Engine, LLM Providers

Sources: [README.md:1-50]()

Architecture Overview

Related topics: Project Introduction, CDP Engine, Core Actions, Server API

Sources: [context.ts:lines]()

CDP Engine

Related topics: Architecture Overview, DOM and Accessibility Tree, Core Actions

Sources: [packages/core/lib/v3/understudy/cdp.ts:1-50]()

Core Actions

Related topics: CDP Engine, DOM and Accessibility Tree, Agent System

Sources: [packages/core/lib/v3/handlers/v3AgentHandler.ts](https://github.com/browserbase/stagehand/blob/main/packages/core/lib/v3/handlers/v3AgentHandler.ts)

DOM and Accessibility Tree

Related topics: CDP Engine, Core Actions, DOM and Accessibility Tree

Source: https://github.com/browserbase/stagehand / Human Manual

AI Context Pack and portable assets

After deciding to continue, take the project context into your own AI host.

Complete pack plus user-owned assets

These files are planning and verification assets for Claude Code, Codex, Gemini, Cursor, ChatGPT, and other AI hosts.

Download complete pack Read Human Manual

BundleComplete Project Pack AssetAI Context Pack AssetBoundary & Risk Card AssetHuman Manual AssetPitfall Log AssetPrompt Preview AssetQuick Start ManifestPROJECT_PACK.json

Preflight checks

Treat this preview as a planning asset, not proof that your local environment is ready.

The manual is generated from source-linked project files and Doramagic validation signals.
Community evidence warnings stay visible instead of being converted into marketing claims.
The preview remains noindex until English quality and reciprocal indexing gates are explicitly opened.
Use the upstream repository as the final authority for installation commands, license, and version-specific behavior.

Pitfall Log and verification risks

Doramagic surfaces high-risk items before users treat a candidate capability as verified.

medium

Review upstream issue

The source signal needs review before production use.

medium

Review upstream issue

README/documentation is current enough for a first validation pass.

medium

Review upstream issue

The source signal needs review before production use.

medium

Review upstream issue

no_demo

medium

Review upstream issue

no_demo

low

Review upstream issue

issue_or_pr_quality=unknown。

low

Review upstream issue

release_recency=unknown。