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workflowagent-browser
Install
Source: packages/harness-kit/src/registry/bundles/workflow/agent-browser/README.md

Agent Browser

Token-efficient browser automation via accessibility snapshots (~200-400 tokens/page).

Artifacts

TypeDetail
toolnpm install -g agent-browser && agent-browser install
skillvercel-labs/agent-browser

Requirements

  • Chrome/Chromium installed
  • Linux servers: libasound2t64 package + --no-sandbox flag (AppArmor)

What it does

Gives Claude browser control using accessibility tree snapshots instead of screenshots. Each page costs ~200-400 tokens (vs ~2000+ for screenshot-based approaches).

Capabilities:

  • Navigate, click, type, scroll, wait
  • Extract structured data from web pages
  • Fill forms, interact with SPAs
  • Multi-step workflows (login → navigate → extract)

Setup

  1. Ensure Chrome is installed
  2. Run harness-kit add agent-browser
    • Installs agent-browser CLI globally
    • Installs Playwright browsers via agent-browser install
    • Adds the agent-browser skill via npx skills add

Notes