[BUG] Computer Use MCP: Cannot read properties of undefined (registerEscape / checkAccessibility)

Description

Computer Use MCP shows as "connected" in /mcp but all tool calls fail with internal JavaScript errors.

Error Messages

screenshot tool:

Cannot read properties of undefined (reading 'registerEscape')

request_access tool:

Cannot read properties of undefined (reading 'checkAccessibility')

Environment

• Claude Code version: 2.1.88
• macOS version: 26.4 (25E246)
• Node.js version: v22.17.0
• Machine: MacBook Pro
• Plan: Max (Computer Use should be available)

Permissions Verified

• ✅ Accessibility: Claude + Terminal both enabled
• ✅ Screen Recording: Claude + Terminal both enabled
• ✅ Computer Use MCP status: "connected" (shown in /mcp)

Steps to Reproduce

1. Open Claude Code CLI (v2.1.88)
2. Run /mcp — Computer Use shows as connected
3. Call screenshot tool → Error: Cannot read properties of undefined (reading 'registerEscape')
4. Call request_access tool → Error: Cannot read properties of undefined (reading 'checkAccessibility')

What I've Tried

• Restarting Claude Code multiple times
• Reconnecting MCP via /mcp
• Verifying all macOS permissions (Accessibility + Screen Recording)
• Confirmed Node.js v22 (not v25 which has known issues)

Expected Behavior

request_access should show the permission dialog, and screenshot should capture the screen.

Actual Behavior

Both tools throw TypeError: Cannot read properties of undefined immediately, suggesting an internal object is not initialized despite the MCP connection being established.