claude-code - 💡(How to fix) Fix Computer use in CLI: HiDPI / high-resolution display guidance missing [1 participants]

Context

Computer use in CLI (Week 14 release) is a great addition. I want to use it on macOS but I'm hitting the same issue I previously hit with the original computer-use API on a high-resolution display.

The gap

The official docs (code.claude.com/docs/en/computer-use) provide no guidance on:

• Recommended screen resolution / scaling for reliable model interpretation
• How the feature handles HiDPI / Retina / 5K / 6K displays
• Whether full-screen screenshots at native resolution are reliably interpretable
• Any documented workaround (e.g. shrinking the target window into a corner) similar to what was needed with the original computer-use API

Why it matters

On the original computer-use API, full-resolution screenshots from large/HiDPI displays were too large for the model to read accurately. The practical workaround was to manually resize the target window into the top-left corner at a reduced size and screenshot just that region. This was clunky and offset most of the benefit of the feature.

It's unclear whether the new CLI version inherits the same limitation, has a built-in scaling step, or has any recommended setup. Some explicit documentation here would significantly help adoption for users on modern Macs with 5K+ displays.

Asks

1. Document recommended display setup / scaling for computer use in CLI
2. If HiDPI screenshots are downscaled internally, document the target resolution and any trade-offs
3. If users need to manually configure their display, provide a recommended resolution or window-size guidance

Thanks!