claude-code - 💡(How to fix) Fix TUI rendering: window resize causes output duplication, rewind causes freeze (requires process kill) [1 comments, 2 participants]

TL;DR

The most likely fix involves addressing the rendering and state management issues in Claude Code to prevent output duplication and freezing.

Guidance

• Investigate the rendering logic in Claude Code to ensure it properly handles terminal window resizes and updates the output viewport without duplicating previous output.
• Review the rewind feature's implementation to identify potential causes of the freeze, such as infinite loops or unhandled exceptions, and consider adding error handling or timeouts to prevent the process from becoming unresponsive.
• Consider implementing a mechanism to clear the output buffer or reset the rendering state when the rewind feature is used to prevent overlap and freezing.
• Test the fixes in both iTerm2 and Apple Terminal to ensure the solution is terminal-agnostic.

Example

No specific code snippet can be provided without more information about the Claude Code implementation, but ensuring proper handling of terminal events and output management is crucial.

Notes

The provided information suggests that the issues are related to the Claude Code application itself rather than the terminal emulators, as both iTerm2 and Apple Terminal reproduce the bugs. The exact fixes will depend on the internal implementation of Claude Code.

Recommendation

Apply a workaround by avoiding the use of the rewind feature in long sessions until a proper fix is implemented, as it causes a complete freeze requiring external process termination.