A way to view full output of background terminals #16935

What variant of Codex are you using?

CLI

What feature would you like to see?

What issue are you seeing?

I’m using Codex CLI to run long-running ML jobs (e.g., training / rollout), and the current /ps command only shows a summarized preview (last few lines) of background terminals.

There is currently no clear way to view the full live output of a running background task.

What is the expected behavior?

There should be a way to:

• Attach to a background terminal (similar to tmux attach)
• Or expand /ps into a full log view
• Or stream full stdout of a selected job

Why is this important?

For long-running workloads, logs are critical for:

• debugging
• monitoring progress
• detecting failures early

The current summarized view is not sufficient for these use cases.

Suggested solutions

• Add /attach <job_id> to open full terminal view
• Add /logs <job_id> to stream full output
• Or allow toggling between "preview" and "full" mode in /ps

Additional context

This feels like a limitation compared to tools like tmux/screen, where full session output is accessible.

Better observability for background tasks would significantly improve the developer experience when using Codex CLI.

Additional information

No response