Stream live output from background terminal processes

What variant of Codex are you using?

CLI (background terminal)

What feature would you like to see?

When Codex runs commands in a background terminal, it currently only shows a very limited preview of the output (e.g., the first few lines). The full output is only available after the process finishes (via Ctrl + t).

It would be very useful to have a way to stream or view the full live output while the process is still running.

Example use cases

• Running a long script (e.g., printing numbers every second)
• Build processes
• Intermediate steps in multi-stage tasks

In these cases, not being able to see live output makes it difficult to:

• Monitor progress
• Debug issues early
• Understand what the process is doing in real time

Additional information

Current behavior:

• /ps only shows a short preview (≈3 lines)
• Ctrl + t only works after the process has completed