AI-HANDS PREREQUISITES AND INSTALL BOUNDARY
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Required:
- Windows 10 version 1809 or newer, or Windows 11
- An x64 or ARM64 build matching the machine architecture
- An MCP-compatible AI host for tool discovery and calls

Browser layer:
- Google Chrome or Chromium must be installed separately for browser/CDP automation.
- The installer does not download, manage, or silently install a browser.
- If no supported browser is detected, setup reports that limitation. Windows UIA and vision abilities may still be usable.
- The optional browser_js_extract parser requires Node.js plus linkedom or jsdom. AI-Hands searches for node.exe on PATH and the bundled helper next to hands.exe. AIHANDS_NODE_EXE, AIHANDS_JS_EXTRACT_SCRIPT, and AIHANDS_NODE_PATH can override those locations. Normal CDP browser tools do not require Node.js.

Windows desktop and vision layers:
- UI Automation uses Windows UIA APIs.
- Screenshot and OCR behavior depends on the Windows graphics, display, and capture APIs available to the signed-in interactive user.
- Secure desktops, elevated windows, remote sessions, games, protected media, and custom-drawn applications can limit capture or UIA visibility.

AI host boundary:
- Setup stages hands.exe, the optional plugin, skills, instructions, and opt-in hook templates.
- The optional hook adapters require Python 3.10 or newer available on PATH as python; Hands itself and the skills-only profile do not require Python.
- Setup adds only the AI-Hands bin directory to the current user's PATH.
- Setup does not edit Codex, Claude, Grok, ChatGPT, MCP, or hook configuration.
- The per-AI application guide is copied to the clipboard during an interactive install and a popup explains the next step.
- Hooks remain inert until the host owner reviews and applies them. Only a trusted, blocking, runtime-proven hook is enforcement.

Monitor boundary:
- Primary scope is suitable for interactive work that follows the Windows primary display.
- A fixed physical stable ID with locking is the safer default for unattended automation.
- A separate Windows session or virtual machine is required for a security-grade isolation boundary.

This installer is not a claim that every browser or desktop prerequisite exists on a fresh machine.