claude-code - 💡(How to fix) Fix [BUG] SGR sequences leak into Windows terminal [3 comments, 2 participants]

Error Messages/Logs

TL;DR

The issue can be mitigated by properly shutting down mouse tracking in Claude Code before the terminal geometry changes, potentially through a more graceful exit when the SSH connection is lost.

Guidance

• Investigate how Claude Code handles SSH connection loss and terminal geometry changes to identify why mouse tracking is not being shut down correctly.
• Consider adding a hook or signal handler to Claude Code to detect when the SSH connection is lost and clean up any active mouse tracking.
• Look into using a library or function that can help manage terminal modes and escape sequences, such as tty or termios, to ensure that the terminal is properly reset after Claude Code exits.
• Test the issue with different terminal emulators or configurations to see if the problem is specific to Windows Terminal.

Example

No specific code example can be provided without more information about the Claude Code internals, but a general approach might involve using a signal handler to catch the SIGPIPE signal sent when the SSH connection is lost, and then calling a function to reset the terminal mode.

Notes

The exact solution will depend on the specifics of how Claude Code interacts with the terminal and handles SSH connections. Without more information about the codebase, it's difficult to provide a precise fix.

Recommendation

Apply a workaround, such as manually resetting the terminal mode after Claude Code exits, until a proper fix can be implemented in the code. This is because the issue seems to be related to how Claude Code handles connection loss and terminal geometry changes, and a workaround can provide a temporary solution until the root cause is addressed.