codex - 💡(How to fix) Fix Unable to wrap lines in tmux [1 comments, 2 participants]

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openai/codex#17647Fetched 2026-04-14 05:41:47
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What version of Codex CLI is running?

codex-cli 0.120.0

What subscription do you have?

Plus

Which model were you using?

No response

What platform is your computer?

macOS: Darwin 24.1.0 arm64 arm

What terminal emulator and version are you using (if applicable)?

tmux

What issue are you seeing?

When running in a tmux pane, it's not possible to use shift + enter or command + enter to create a new line. I tried it with Claude Code and it works.

What steps can reproduce the bug?

Start codex in tmux.

What is the expected behavior?

No response

Additional information

No response

extent analysis

TL;DR

The issue with using shift + enter or command + enter to create a new line in Codex CLI within a tmux pane may be related to keyboard shortcut handling in tmux.

Guidance

  • Verify if the issue persists when running Codex CLI outside of tmux to isolate the problem.
  • Check tmux configuration files (e.g., .tmux.conf) for any custom keyboard bindings that might interfere with Codex CLI's functionality.
  • Investigate if there are any Codex CLI settings or flags that can be used to override or customize keyboard shortcuts.
  • Compare the behavior with Claude Code to identify potential differences in how these tools handle keyboard input within tmux.

Example

No specific code example is provided due to the lack of detailed technical information about the issue.

Notes

The solution may depend on the specific version of tmux and Codex CLI being used, as well as the user's custom configurations. Without more information about the expected behavior and additional details, providing a precise fix is challenging.

Recommendation

Apply workaround: Given the information, a potential workaround could involve configuring tmux to pass through specific keyboard shortcuts to the Codex CLI, though this would require further investigation into tmux and Codex CLI documentation.

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