[BUG] Remote Control (Android version) always fails to deliver .APK files

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

When Claude Code attempts to send me a file through remote control, and that file is an APK file, I can't open it or save it from the Android app. The file shows in the chat as a gray box, but it isn't clickable.

What Should Happen?

Clicking on the file should save it to downloads. If it requires additional permissions (Android is funny about .APK at least in Android 16) then it should ask for the permission, then save it.

Error Messages/Logs

Steps to Reproduce

1. Working on an Android app in Claude Code on a headless VPS with Remote Control enabled, using Remote Control in the android Claude app. Claude Code creates a build artifact .APK and sends it to me in chat.
2. Click or tap on the build artifact file in the chat. Observe that the file is not downloaded.

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.158

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

My best guess is that the Claude Android app routes remote control downloads through Chrome, and Chrome is blocking what it assumes to be a dangerous download.